Mercurial > hg > dmlib
annotate src/libgfx.c @ 1298:f0d6aac3adc4
Some cleanups.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sat, 19 Aug 2017 03:20:02 +0300 |
| parents | 5bd64397453b |
| children | b0c0be4c76f9 |
| rev | line source |
|---|---|
| 435 | 1 /* |
| 2 * Functions for reading and converting various restricted | |
| 3 * C64/etc and/or indexed/paletted graphics formats. | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 5 * (C) Copyright 2012 Tecnic Software productions (TNSP) | |
| 6 * | |
| 7 * Please read file 'COPYING' for information on license and distribution. | |
| 8 */ | |
| 9 #include "libgfx.h" | |
| 10 #include "dmfile.h" | |
| 11 #include "dmbstr.h" | |
| 12 | |
| 13 #ifdef DM_USE_LIBPNG | |
| 14 #include <png.h> | |
| 15 #endif | |
| 16 | |
| 17 | |
|
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18 int dmGFXErrorMode = DM_ERRMODE_FAIL; |
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19 |
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20 |
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21 |
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Move dmCompareColor() to libgfx.
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22 BOOL dmCompareColor(const DMColor *c1, const DMColor *c2, BOOL alpha) |
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23 { |
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24 if (c1->r == c2->r && |
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25 c1->g == c2->g && |
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26 c1->b == c2->b) |
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27 return alpha ? (c1->a == c2->a) : TRUE; |
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28 else |
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29 return FALSE; |
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30 } |
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31 |
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32 |
| 1286 | 33 int dmImageGetBytesPerPixel(const int format) |
| 34 { | |
| 35 switch (format) | |
| 36 { | |
| 37 case DM_IFMT_PALETTE : return 1; | |
| 38 case DM_IFMT_RGB : return 3; | |
| 39 case DM_IFMT_RGBA : return 4; | |
| 40 default: return -1; | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 | |
| 45 DMImage * dmImageAlloc(const int width, const int height, const int format, const int bpp) | |
| 435 | 46 { |
|
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47 DMImage *img = dmMalloc0(sizeof(DMImage)); |
| 435 | 48 if (img == NULL) |
| 49 return NULL; | |
|
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50 |
| 1286 | 51 img->width = width; |
| 52 img->height = height; | |
| 53 img->format = format; | |
| 54 img->bpp = (bpp <= 0) ? dmImageGetBytesPerPixel(format) * 8 : bpp; | |
| 55 img->pitch = width * img->bpp; | |
| 56 img->size = img->pitch * img->height; | |
| 57 img->ctransp = -1; | |
| 930 | 58 |
|
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Add size field for allocated data size in DMImage.
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59 if ((img->data = dmMalloc(img->size)) == NULL) |
| 435 | 60 { |
| 61 dmFree(img); | |
| 62 return NULL; | |
| 63 } | |
|
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64 |
| 435 | 65 return img; |
| 66 } | |
| 67 | |
| 68 | |
| 69 void dmImageFree(DMImage *img) | |
| 70 { | |
| 71 if (img != NULL) | |
| 72 { | |
| 73 if (!img->constpal) | |
| 74 { | |
| 75 dmFree(img->pal); | |
| 76 } | |
| 77 dmFree(img->data); | |
| 78 dmFree(img); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 | |
|
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83 BOOL dmPaletteAlloc(DMColor **ppal, int ncolors, int ctransp) |
|
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84 { |
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85 int i; |
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86 |
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87 if (ppal == NULL) |
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88 return FALSE; |
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89 |
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90 // Allocate desired amount of palette |
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91 if ((*ppal = dmCalloc(ncolors, sizeof(DMColor))) == NULL) |
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92 return FALSE; |
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93 |
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94 // Set alpha values to max, except for transparent color |
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95 for (i = 0; i < ncolors; i++) |
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96 { |
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97 (*ppal)[i].a = (i == ctransp) ? 0 : 255; |
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98 } |
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99 |
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100 return TRUE; |
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101 } |
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102 |
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103 |
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104 BOOL dmImageAllocPalette(DMImage *img, int ncolors, int ctransp) |
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105 { |
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106 if (img == NULL) |
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107 return FALSE; |
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108 |
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109 img->ncolors = ncolors; |
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110 img->ctransp = ctransp; |
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111 return dmPaletteAlloc(&(img->pal), ncolors, ctransp); |
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112 } |
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113 |
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114 |
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115 static BOOL dmReadPaletteData(FILE *fp, DMColor *pal, int ncolors) |
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116 { |
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117 int i; |
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118 |
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119 for (i = 0; i < ncolors; i++) |
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120 { |
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121 Uint8 colR, colG, colB; |
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122 if (!dm_fread_byte(fp, &colR) || |
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123 !dm_fread_byte(fp, &colG) || |
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124 !dm_fread_byte(fp, &colB)) |
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125 return FALSE; |
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126 |
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127 pal[i].r = colR; |
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128 pal[i].g = colG; |
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129 pal[i].b = colB; |
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130 } |
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131 |
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132 return TRUE; |
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133 } |
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134 |
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135 |
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136 int dmWriteImageData(DMImage *img, void *cbdata, int (*writeRowCB)(void *, Uint8 *, size_t), const DMImageConvSpec *spec) |
| 435 | 137 { |
| 138 int x, y, yscale, xscale, res = 0, rowSize, rowWidth; | |
| 139 Uint8 *row = NULL; | |
| 140 | |
| 141 // Allocate memory for row buffer | |
|
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142 rowWidth = img->width * spec->scaleX; |
| 435 | 143 rowSize = rowWidth * dmImageGetBytesPerPixel(spec->format); |
| 144 | |
| 145 if ((row = dmMalloc(rowSize + 16)) == NULL) | |
| 146 { | |
| 147 res = DMERR_MALLOC; | |
| 148 goto done; | |
| 149 } | |
| 150 | |
| 151 // Generate the image | |
| 152 for (y = 0; y < img->height; y++) | |
| 153 { | |
|
436
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154 Uint8 *ptr1 = row, |
| 435 | 155 *ptr2 = ptr1 + rowWidth, |
| 1291 | 156 *ptr3 = ptr2 + rowWidth, |
| 157 *ptr4 = ptr3 + rowWidth; | |
| 435 | 158 |
| 159 for (x = 0; x < img->width; x++) | |
| 160 { | |
| 1291 | 161 Uint8 c = img->data[(y * img->pitch) + (x * img->bpp) / 8], |
| 162 qr, qg, qb, qa; | |
| 163 | |
| 435 | 164 switch (spec->format) |
| 165 { | |
| 166 case DM_IFMT_PALETTE: | |
|
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parents:
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167 for (xscale = 0; xscale < spec->scaleX; xscale++) |
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436
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168 *ptr1++ = c; |
| 435 | 169 break; |
| 170 | |
| 171 case DM_IFMT_RGBA: | |
| 172 qr = img->pal[c].r; | |
| 173 qg = img->pal[c].g; | |
| 174 qb = img->pal[c].b; | |
|
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175 qa = img->pal[c].a; |
| 1292 | 176 |
| 1291 | 177 if (spec->planar) |
| 435 | 178 { |
| 1291 | 179 for (xscale = 0; xscale < spec->scaleX; xscale++) |
| 180 { | |
| 181 *ptr1++ = qr; | |
| 182 *ptr2++ = qg; | |
| 183 *ptr3++ = qb; | |
| 184 *ptr4++ = qa; | |
| 185 } | |
| 186 } | |
| 187 else | |
| 188 { | |
| 189 for (xscale = 0; xscale < spec->scaleX; xscale++) | |
| 190 { | |
| 191 *ptr1++ = qr; | |
| 192 *ptr1++ = qg; | |
| 193 *ptr1++ = qb; | |
| 194 *ptr1++ = qa; | |
| 195 } | |
| 435 | 196 } |
| 197 break; | |
| 198 | |
| 199 case DM_IFMT_RGB: | |
| 200 qr = img->pal[c].r; | |
| 201 qg = img->pal[c].g; | |
| 202 qb = img->pal[c].b; | |
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203 |
| 1291 | 204 if (spec->planar) |
| 435 | 205 { |
| 1291 | 206 for (xscale = 0; xscale < spec->scaleX; xscale++) |
| 207 { | |
| 208 *ptr1++ = qr; | |
| 209 *ptr2++ = qg; | |
| 210 *ptr3++ = qb; | |
| 211 } | |
| 435 | 212 } |
| 1291 | 213 else |
| 435 | 214 { |
| 1291 | 215 for (xscale = 0; xscale < spec->scaleX; xscale++) |
| 216 { | |
| 217 *ptr1++ = qr; | |
| 218 *ptr1++ = qg; | |
| 219 *ptr1++ = qb; | |
| 220 } | |
| 435 | 221 } |
| 222 break; | |
| 223 } | |
| 224 } | |
| 225 | |
|
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parents:
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226 for (yscale = 0; yscale < spec->scaleY; yscale++) |
| 435 | 227 { |
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Use dmlib error code return value in cases where a plain boolean was used
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228 if ((res = writeRowCB(cbdata, row, rowSize)) != DMERR_OK) |
| 435 | 229 goto done; |
| 230 } | |
| 231 } | |
| 232 | |
| 233 done: | |
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234 dmFree(row); |
| 435 | 235 return res; |
| 236 } | |
| 237 | |
| 238 | |
| 239 #define DMCOL(x) (((x) >> 4) & 0xf) | |
| 240 | |
| 462 | 241 int dmWriteIFFMasterRAWPalette(FILE *fp, DMImage *img, int ncolors, |
| 242 const char *indent, const char *type) | |
| 435 | 243 { |
| 244 int i; | |
| 245 | |
| 246 for (i = 0; i < ncolors; i++) | |
| 247 { | |
| 248 int color; | |
| 249 if (i < img->ncolors) | |
| 250 { | |
| 251 color = (DMCOL(img->pal[i].r) << 8) | | |
| 252 (DMCOL(img->pal[i].g) << 4) | | |
| 253 (DMCOL(img->pal[i].b)); | |
| 254 } | |
| 255 else | |
| 256 color = 0; | |
| 257 | |
| 462 | 258 fprintf(fp, "%s%s $%04X\n", |
| 259 indent != NULL ? indent : "\t", | |
|
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0359697eeb46
Oops, the ARAW palette output should use dc.w, not dw.b .. :P
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260 type != NULL ? type : "dc.w", |
| 462 | 261 color); |
| 435 | 262 } |
| 263 | |
| 462 | 264 return DMERR_OK; |
| 435 | 265 } |
| 266 | |
| 267 | |
|
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e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
268 int dmWriteRAWImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 269 { |
| 270 int xc, yc, plane, res; | |
|
800
c63e24f9aa9a
Modularize bitstream reader.
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parents:
566
diff
changeset
|
271 DMBitStreamContext bs; |
|
1102
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diff
changeset
|
272 |
|
800
c63e24f9aa9a
Modularize bitstream reader.
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diff
changeset
|
273 if ((res = dmInitBitStreamFILE(&bs, fp)) != DMERR_OK) |
| 435 | 274 return res; |
| 275 | |
| 1291 | 276 if (spec->planar) |
| 435 | 277 { |
| 1291 | 278 // Output bitplanes in planerd format (each plane of line sequentially) |
| 435 | 279 for (yc = 0; yc < img->height; yc++) |
| 280 { | |
| 281 for (plane = 0; plane < spec->nplanes; plane++) | |
| 282 { | |
| 283 Uint8 *sp = img->data + yc * img->pitch; | |
| 284 for (xc = 0; xc < img->width; xc++) | |
| 285 { | |
| 286 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 287 return DMERR_FWRITE; | |
| 288 } | |
| 289 } | |
| 290 } | |
| 291 } | |
| 292 else | |
| 293 { | |
| 294 // Output each bitplane in sequence | |
| 295 for (plane = 0; plane < spec->nplanes; plane++) | |
| 296 { | |
| 297 for (yc = 0; yc < img->height; yc++) | |
| 298 { | |
| 299 Uint8 *sp = img->data + yc * img->pitch; | |
| 300 for (xc = 0; xc < img->width; xc++) | |
| 301 { | |
| 302 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 303 return DMERR_FWRITE; | |
| 304 } | |
| 305 } | |
| 306 } | |
| 307 } | |
|
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Cosmetics pass: Remove excess whitespace.
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parents:
958
diff
changeset
|
308 |
| 435 | 309 return dmFlushBitStream(&bs); |
| 310 } | |
| 311 | |
|
566
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
312 |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
313 int dmWriteRAWImage(const char *filename, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 314 { |
| 315 FILE *fp; | |
| 316 int res; | |
| 317 | |
| 318 if ((fp = fopen(filename, "wb")) == NULL) | |
| 319 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
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parents:
930
diff
changeset
|
320 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
321 "RAW: Could not open file '%s' for writing.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
322 filename); |
| 435 | 323 } |
| 324 | |
|
566
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
325 res = dmWriteRAWImageFILE(fp, img, spec); |
| 435 | 326 |
| 327 fclose(fp); | |
| 328 return res; | |
| 329 } | |
| 330 | |
| 331 | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
332 static int dmWritePPMRow(void *cbdata, Uint8 *row, size_t len) |
| 435 | 333 { |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
334 if (fwrite(row, sizeof(Uint8), len, (FILE *) cbdata) == len) |
|
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
335 return DMERR_OK; |
|
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
336 else |
|
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
337 return DMERR_FWRITE; |
| 435 | 338 } |
| 339 | |
| 340 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
341 int dmWritePPMImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 342 { |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
343 DMImageConvSpec tmpSpec; |
| 1288 | 344 |
| 435 | 345 // Write PPM header |
| 346 fprintf(fp, | |
| 347 "P6\n%d %d\n255\n", | |
|
902
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
348 img->width * spec->scaleX, |
|
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
349 img->height * spec->scaleY); |
| 435 | 350 |
| 351 // Write image data | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
352 memcpy(&tmpSpec, spec, sizeof(DMImageConvSpec)); |
| 1288 | 353 tmpSpec.format = DM_IFMT_RGB; |
| 354 return dmWriteImageData(img, (void *) fp, dmWritePPMRow, &tmpSpec); | |
| 435 | 355 } |
| 356 | |
| 357 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
358 int dmWritePPMImage(const char *filename, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 359 { |
| 360 FILE *fp; | |
| 361 int res; | |
| 362 | |
| 363 // Create output file | |
| 364 if ((fp = fopen(filename, "wb")) == NULL) | |
| 365 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
366 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
367 "PPM: could not open file '%s' for writing.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
368 filename); |
| 435 | 369 } |
| 370 | |
| 371 res = dmWritePPMImageFILE(fp, img, spec); | |
| 372 | |
| 373 fclose(fp); | |
| 374 return res; | |
| 375 } | |
| 376 | |
| 377 | |
| 378 #ifdef DM_USE_LIBPNG | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
379 static int dmWritePNGRow(void *cbdata, Uint8 *row, size_t len) |
| 435 | 380 { |
| 381 png_structp png_ptr = cbdata; | |
| 382 (void) len; | |
| 383 | |
| 384 if (setjmp(png_jmpbuf(png_ptr))) | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
385 return DMERR_INTERNAL; |
| 435 | 386 |
| 387 png_write_row(png_ptr, row); | |
| 388 | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
389 return DMERR_OK; |
| 435 | 390 } |
| 391 | |
| 392 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
393 int dmWritePNGImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 394 { |
| 395 png_structp png_ptr = NULL; | |
| 396 png_infop info_ptr = NULL; | |
| 397 int fmt, res = DMERR_OK; | |
| 398 | |
| 399 // Create PNG structures | |
| 400 png_ptr = png_create_write_struct( | |
| 401 PNG_LIBPNG_VER_STRING, | |
| 402 NULL, NULL, NULL); | |
| 403 | |
| 404 if (png_ptr == NULL) | |
| 405 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
406 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
407 "PNG: png_create_write_struct() failed.\n"); |
| 435 | 408 goto error; |
| 409 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
410 |
| 435 | 411 info_ptr = png_create_info_struct(png_ptr); |
| 412 if (info_ptr == NULL) | |
| 413 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
414 res = dmError(DMERR_INIT_FAIL, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
415 "PNG: png_create_info_struct(%p) failed.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
416 png_ptr); |
| 435 | 417 goto error; |
| 418 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
419 |
| 435 | 420 if (setjmp(png_jmpbuf(png_ptr))) |
| 421 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
422 res = dmError(DMERR_INIT_FAIL, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
423 "PNG: Error during image writing..\n"); |
| 435 | 424 goto error; |
| 425 } | |
| 426 | |
| 427 png_init_io(png_ptr, fp); | |
| 428 | |
| 429 // Write PNG header info | |
| 430 switch (spec->format) | |
| 431 { | |
| 432 case DM_IFMT_PALETTE: fmt = PNG_COLOR_TYPE_PALETTE; break; | |
| 433 case DM_IFMT_RGB : fmt = PNG_COLOR_TYPE_RGB; break; | |
| 434 case DM_IFMT_RGBA : fmt = PNG_COLOR_TYPE_RGB_ALPHA; break; | |
| 435 default: | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
436 res = dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
437 "PNG: Unsupported image format %d.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
438 spec->format); |
| 435 | 439 goto error; |
| 440 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
441 |
| 435 | 442 png_set_IHDR(png_ptr, info_ptr, |
|
902
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
443 img->width * spec->scaleX, |
|
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
444 img->height * spec->scaleY, |
| 435 | 445 8, /* bits per component */ |
| 446 fmt, | |
| 447 PNG_INTERLACE_NONE, | |
| 448 PNG_COMPRESSION_TYPE_DEFAULT, | |
| 449 PNG_FILTER_TYPE_DEFAULT); | |
| 450 | |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
451 dmMsg(2, "PNG: %d x %d, depth=%d, type=%d\n", |
|
902
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
452 img->width * spec->scaleX, |
|
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
453 img->height * spec->scaleY, |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
454 8, fmt); |
|
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
455 |
| 435 | 456 // Palette |
| 457 if (spec->format == DM_IFMT_PALETTE) | |
| 458 { | |
| 459 int i; | |
|
858
e7019bd83cca
Fix potential longjmp clobbering of variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
834
diff
changeset
|
460 png_colorp palette = png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); |
| 435 | 461 |
| 462 if (palette == NULL) | |
| 463 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
464 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
465 "PNG: Could not allocate palette structure."); |
| 435 | 466 goto error; |
| 467 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
468 |
| 1167 | 469 dmMemset(palette, 0, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); |
| 435 | 470 |
| 471 for (i = 0; i < img->ncolors; i++) | |
| 472 { | |
| 473 palette[i].red = img->pal[i].r; | |
| 474 palette[i].green = img->pal[i].g; | |
| 475 palette[i].blue = img->pal[i].b; | |
| 476 } | |
| 477 | |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
478 png_set_PLTE(png_ptr, info_ptr, palette, img->ncolors); |
| 435 | 479 } |
| 480 | |
| 481 // png_set_gAMA(png_ptr, info_ptr, 2.2); | |
| 482 | |
| 483 png_write_info(png_ptr, info_ptr); | |
| 484 | |
| 485 | |
| 486 // Write compressed image data | |
| 487 dmWriteImageData(img, (void *) png_ptr, dmWritePNGRow, spec); | |
| 488 | |
| 489 // Write footer | |
| 490 png_write_end(png_ptr, NULL); | |
| 491 | |
| 492 error: | |
| 493 if (png_ptr && info_ptr) | |
| 494 png_destroy_write_struct(&png_ptr, &info_ptr); | |
| 495 | |
| 496 return res; | |
| 497 } | |
| 498 | |
| 499 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
500 int dmWritePNGImage(const char *filename, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 501 { |
| 502 int res; | |
| 503 FILE *fp; | |
| 504 | |
| 505 if ((fp = fopen(filename, "wb")) == NULL) | |
| 506 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
507 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
508 "PNG: could not open file '%s' for writing.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
509 filename); |
| 435 | 510 } |
| 511 | |
| 512 res = dmWritePNGImageFILE(fp, img, spec); | |
| 513 | |
| 514 fclose(fp); | |
| 515 return res; | |
| 516 } | |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
517 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
518 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
519 int dmReadPNGImageFILE(FILE *fp, DMImage **pimg) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
520 { |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
521 png_structp png_ptr = NULL; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
522 png_infop info_ptr = NULL; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
523 png_colorp palette = NULL; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
524 png_bytep *row_pointers = NULL; |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
525 png_bytep trans = NULL; |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
526 png_uint_32 width, height; |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
527 int i, bit_depth, color_type, ncolors, ntrans; |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
528 int res = DMERR_OK; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
529 DMImage *img; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
530 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
531 // Create PNG structures |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
532 png_ptr = png_create_read_struct( |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
533 PNG_LIBPNG_VER_STRING, |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
534 NULL, NULL, NULL); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
535 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
536 if (png_ptr == NULL) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
537 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
538 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
539 "PNG: png_create_write_struct() failed.\n"); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
540 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
541 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
542 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
543 info_ptr = png_create_info_struct(png_ptr); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
544 if (info_ptr == NULL) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
545 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
546 res = dmError(DMERR_INIT_FAIL, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
547 "PNG: png_create_info_struct(%p) failed.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
548 png_ptr); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
549 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
550 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
551 |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
552 if (setjmp(png_jmpbuf(png_ptr))) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
553 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
554 res = dmError(DMERR_INIT_FAIL, |
| 1291 | 555 "PNG: Error during image reading.\n"); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
556 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
557 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
558 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
559 png_init_io(png_ptr, fp); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
560 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
561 // Read image information |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
562 png_read_info(png_ptr, info_ptr); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
563 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
564 png_get_IHDR(png_ptr, info_ptr, &width, &height, |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
565 &bit_depth, &color_type, NULL, NULL, NULL); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
566 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
567 if (width < 1 || height < 1) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
568 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
569 res = dmError(DMERR_INVALID_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
570 "PNG: Invalid width or height (%d x %d)\n", |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
571 width, height); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
572 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
573 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
574 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
575 switch (color_type) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
576 { |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
577 case PNG_COLOR_TYPE_GRAY: |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
578 if (bit_depth < 8) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
579 png_set_expand_gray_1_2_4_to_8(png_ptr); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
580 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
581 if (bit_depth > 8) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
582 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
583 res = dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
584 "PNG: Unsupported bit depth for grayscale image: %d\n", |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
585 bit_depth); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
586 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
587 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
588 break; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
589 |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
590 case PNG_COLOR_TYPE_PALETTE: |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
591 png_set_packing(png_ptr); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
592 break; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
593 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
594 default: |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
595 res = dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
596 "PNG: RGB/RGBA images not supported for loading.\n"); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
597 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
598 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
599 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
600 // Allocate image |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
601 dmMsg(2, "PNG: %d x %d, depth=%d, type=%d\n", |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
602 width, height, bit_depth, color_type); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
603 |
| 1286 | 604 if ((*pimg = img = dmImageAlloc(width, height, DM_IFMT_PALETTE, bit_depth)) == NULL) |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
605 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
606 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
607 "PNG: Could not allocate image data.\n"); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
608 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
609 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
610 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
611 // ... |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
612 row_pointers = png_malloc(png_ptr, height * sizeof(png_bytep)); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
613 for (i = 0; i < img->height; i++) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
614 row_pointers[i] = img->data + (i * img->pitch); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
615 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
616 png_read_image(png_ptr, row_pointers); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
617 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
618 png_read_end(png_ptr, NULL); |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
619 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
620 // Create palette |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
621 switch (color_type) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
622 { |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
623 case PNG_COLOR_TYPE_GRAY: |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
624 ncolors = 256; |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
625 dmMsg(2, "PNG: Generating %d color grayscale palette.\n", ncolors); |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
626 |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
627 if (!dmImageAllocPalette(img, ncolors, -1)) |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
628 { |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
629 res = DMERR_MALLOC; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
630 goto error; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
631 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
632 |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
633 for (i = 0; i < img->ncolors; i++) |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
634 { |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
635 img->pal[i].r = img->pal[i].g = img->pal[i].b = i; |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
636 } |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
637 break; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
638 |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
639 case PNG_COLOR_TYPE_PALETTE: |
|
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
640 png_get_PLTE(png_ptr, info_ptr, &palette, &ncolors); |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
641 dmMsg(2, "PNG: Palette of %d colors found.\n", ncolors); |
|
467
80d09ea85e75
Check for NULL pointers from png_get_tRNS and png_get_PLTE.
Matti Hamalainen <ccr@tnsp.org>
parents:
465
diff
changeset
|
642 if (ncolors > 0 && palette != NULL) |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
643 { |
|
467
80d09ea85e75
Check for NULL pointers from png_get_tRNS and png_get_PLTE.
Matti Hamalainen <ccr@tnsp.org>
parents:
465
diff
changeset
|
644 if (!dmImageAllocPalette(img, ncolors, -1)) |
|
80d09ea85e75
Check for NULL pointers from png_get_tRNS and png_get_PLTE.
Matti Hamalainen <ccr@tnsp.org>
parents:
465
diff
changeset
|
645 { |
|
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Check for NULL pointers from png_get_tRNS and png_get_PLTE.
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646 res = DMERR_MALLOC; |
|
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647 goto error; |
|
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|
648 } |
|
453
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|
649 |
|
467
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|
650 for (i = 0; i < img->ncolors; i++) |
|
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|
651 { |
|
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|
652 img->pal[i].r = palette[i].red; |
|
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|
653 img->pal[i].g = palette[i].green; |
|
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|
654 img->pal[i].b = palette[i].blue; |
|
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parents:
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diff
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|
655 } |
|
453
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|
656 } |
|
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|
657 break; |
|
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|
658 } |
|
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|
659 |
|
460
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Improve transparent color handling.
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diff
changeset
|
660 if (color_type == PNG_COLOR_TYPE_PALETTE || |
|
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|
661 color_type == PNG_COLOR_TYPE_GRAY) |
|
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|
662 { |
|
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Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
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changeset
|
663 png_get_tRNS(png_ptr, info_ptr, &trans, &ntrans, NULL); |
|
467
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|
664 if (trans != NULL && ntrans > 0) |
|
460
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Matti Hamalainen <ccr@tnsp.org>
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changeset
|
665 { |
|
467
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parents:
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diff
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|
666 for (i = 0; i < img->ncolors && i < ntrans; i++) |
|
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|
667 { |
|
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|
668 img->pal[i].a = trans[i]; |
|
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|
669 if (img->ctransp < 0 && trans[i] == 0) |
|
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|
670 img->ctransp = i; |
|
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|
671 } |
|
460
0af039b6c0ae
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|
672 } |
|
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|
673 } |
|
460
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|
674 |
|
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|
675 error: |
|
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|
676 // png_free(png_ptr, palette); |
|
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|
677 |
|
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|
678 if (png_ptr && info_ptr) |
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|
679 png_destroy_read_struct(&png_ptr, &info_ptr, NULL); |
|
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|
680 |
|
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|
681 return res; |
|
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|
682 } |
|
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|
683 |
|
349a2ff11531
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diff
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|
684 |
|
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|
685 int dmReadPNGImage(const char *filename, DMImage **img) |
|
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686 { |
|
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|
687 int res; |
|
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parents:
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|
688 FILE *fp; |
|
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|
689 |
|
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|
690 if ((fp = fopen(filename, "rb")) == NULL) |
|
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|
691 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
692 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
693 "PNG: Could not open file '%s' for reading.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
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changeset
|
694 filename); |
|
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|
695 } |
|
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diff
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|
696 |
|
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|
697 res = dmReadPNGImageFILE(fp, img); |
|
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|
698 |
|
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|
699 fclose(fp); |
|
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|
700 return res; |
|
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|
701 } |
| 435 | 702 #endif |
| 703 | |
| 704 | |
|
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Somewhat improve PCX read support in libgfx.
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|
705 #define DMPCX_PAL_COLORS 16 // Number of internal palette colors |
|
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parents:
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|
706 |
| 435 | 707 typedef struct |
| 708 { | |
| 709 Uint8 r,g,b; | |
| 710 } DMPCXColor; | |
| 711 | |
| 712 | |
| 713 typedef struct | |
| 714 { | |
|
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Somewhat improve PCX read support in libgfx.
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|
715 Uint8 manufacturer, // always 0x0a |
| 1288 | 716 version, // Z-Soft PC Paintbrush version: |
| 717 // 0 = v2.5 | |
| 718 // 2 = v2.8 with palette, | |
| 719 // 3 = v2.8 without palette | |
| 720 // 4 = PC Paintbrush for Windows | |
| 721 // 5 = v3.0 or better | |
|
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|
722 encoding, // usually 0x01 = RLE, 0x00 = uncompressed |
|
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|
723 bitsPerPlane; // bits per pixel per plane |
|
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Somewhat improve PCX read support in libgfx.
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|
724 |
| 435 | 725 Uint16 xmin, ymin, xmax, ymax; |
|
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|
726 Uint16 hres, vres; // resolution in DPI, can be image dimensions as well. |
|
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|
727 DMPCXColor colorMap[DMPCX_PAL_COLORS]; |
|
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Matti Hamalainen <ccr@tnsp.org>
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changeset
|
728 Uint8 reserved; // should be set to 0 |
|
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Somewhat improve PCX read support in libgfx.
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|
729 Uint8 nplanes; // number of planes |
|
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Somewhat improve PCX read support in libgfx.
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parents:
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|
730 Uint16 bpl; // bytes per plane LINE |
|
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Somewhat improve PCX read support in libgfx.
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parents:
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|
731 Uint16 palInfo; // 1 = color/BW, 2 = grayscale |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
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|
732 Uint16 hScreenSize, vScreenSize; |
|
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|
733 Uint8 filler[54]; |
| 435 | 734 } DMPCXHeader; |
| 735 | |
| 736 | |
| 737 typedef struct | |
| 738 { | |
| 739 DMPCXHeader *header; | |
| 740 Uint8 *buf; | |
| 741 size_t bufLen, bufOffs; | |
| 742 int format; | |
| 743 FILE *fp; | |
| 744 } DMPCXData; | |
| 745 | |
| 746 | |
| 1298 | 747 // Returns one byte from row buffer (of length len) at offset soffs, |
| 748 // OR zero if the offset is outside buffer. | |
| 435 | 749 static inline Uint8 dmPCXGetByte(Uint8 *row, const size_t len, const size_t soffs) |
| 750 { | |
| 751 return (soffs < len) ? row[soffs] : 0; | |
| 752 } | |
| 753 | |
| 754 static BOOL dmPCXFlush(DMPCXData *pcx) | |
| 755 { | |
| 756 BOOL ret = TRUE; | |
| 757 if (pcx->bufOffs > 0) | |
| 758 ret = fwrite(pcx->buf, sizeof(Uint8), pcx->bufOffs, pcx->fp) == pcx->bufOffs; | |
| 1297 | 759 |
| 435 | 760 pcx->bufOffs = 0; |
| 761 return ret; | |
| 762 } | |
| 763 | |
| 764 static inline BOOL dmPCXPutByte(DMPCXData *pcx, const Uint8 val) | |
| 765 { | |
| 766 if (pcx->bufOffs < pcx->bufLen) | |
| 767 { | |
| 768 pcx->buf[pcx->bufOffs++] = val; | |
| 769 return TRUE; | |
| 770 } | |
| 771 else | |
| 772 return dmPCXFlush(pcx); | |
| 773 } | |
| 774 | |
| 1297 | 775 |
| 776 static int dmPCXPutData(DMPCXData *pcx, const Uint8 data, const int count) | |
| 777 { | |
| 778 if (count == 1 && (data & 0xC0) != 0xC0) | |
| 779 { | |
| 780 if (!dmPCXPutByte(pcx, data)) | |
| 781 return DMERR_FWRITE; | |
| 782 } | |
| 783 else | |
| 784 { | |
| 785 if (!dmPCXPutByte(pcx, 0xC0 | count) || | |
| 786 !dmPCXPutByte(pcx, data)) | |
| 787 return DMERR_FWRITE; | |
| 788 } | |
| 789 return DMERR_OK; | |
| 790 } | |
| 791 | |
| 792 | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
Matti Hamalainen <ccr@tnsp.org>
parents:
800
diff
changeset
|
793 static int dmWritePCXRow(void *cbdata, Uint8 *row, size_t len) |
| 435 | 794 { |
| 795 DMPCXData *pcx = (DMPCXData *) cbdata; | |
| 1297 | 796 int err; |
| 435 | 797 size_t soffs = 0; |
|
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|
798 |
| 435 | 799 pcx->bufOffs = 0; |
| 800 | |
|
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|
801 for (int plane = 0; plane < pcx->header->nplanes; plane++) |
| 435 | 802 { |
| 803 Uint8 data = dmPCXGetByte(row, len, soffs++), | |
| 804 count = 1; | |
| 805 | |
| 1297 | 806 size_t blen = pcx->header->bpl * pcx->header->nplanes; |
| 435 | 807 while (soffs < blen) |
| 808 { | |
| 1297 | 809 if (data == dmPCXGetByte(row, len, soffs) && count < 0x3F) |
| 435 | 810 { |
| 811 count++; | |
| 812 soffs++; | |
| 813 } | |
| 814 else | |
| 815 { | |
| 1297 | 816 if ((err = dmPCXPutData(pcx, data, count)) != DMERR_OK) |
| 817 return err; | |
| 435 | 818 |
| 819 data = dmPCXGetByte(row, len, soffs++); | |
| 820 count = 1; | |
| 821 } | |
| 822 } | |
| 823 | |
| 1297 | 824 if ((err = dmPCXPutData(pcx, data, count)) != DMERR_OK) |
| 825 return err; | |
| 435 | 826 |
| 827 if (!dmPCXFlush(pcx)) | |
|
808
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diff
changeset
|
828 return DMERR_FWRITE; |
| 435 | 829 } |
| 830 | |
| 831 | |
|
808
f8126fa1df9b
Use dmlib error code return value in cases where a plain boolean was used
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diff
changeset
|
832 return DMERR_OK; |
| 435 | 833 } |
| 834 | |
| 835 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
836 int dmWritePCXImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 837 { |
| 838 DMPCXData pcx; | |
| 839 DMPCXHeader hdr; | |
| 840 int res; | |
| 841 | |
| 842 // Create output file | |
| 843 pcx.buf = NULL; | |
| 1291 | 844 pcx.format = spec->paletted ? DM_IFMT_PALETTE : DM_IFMT_RGB; |
| 435 | 845 pcx.header = &hdr; |
| 846 pcx.fp = fp; | |
| 847 | |
| 848 // Create PCX header | |
| 1167 | 849 dmMemset(&hdr, 0, sizeof(hdr)); |
| 1288 | 850 if (spec->paletted && img->pal != NULL) |
| 435 | 851 { |
|
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Somewhat improve PCX read support in libgfx.
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|
852 for (int i = 0; i < (img->ncolors > DMPCX_PAL_COLORS ? DMPCX_PAL_COLORS : img->ncolors); i++) |
| 435 | 853 { |
|
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|
854 hdr.colorMap[i].r = img->pal[i].r; |
|
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changeset
|
855 hdr.colorMap[i].g = img->pal[i].g; |
|
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changeset
|
856 hdr.colorMap[i].b = img->pal[i].b; |
| 435 | 857 } |
| 858 } | |
| 859 hdr.manufacturer = 10; | |
| 860 hdr.version = 5; | |
| 861 hdr.encoding = 1; | |
|
902
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
862 hdr.hres = img->width * spec->scaleX; |
|
c6c480e8e1c8
Add separate X and Y scaling to gfxconv and libgfx outputters.
Matti Hamalainen <ccr@tnsp.org>
parents:
858
diff
changeset
|
863 hdr.vres = img->height * spec->scaleY; |
| 435 | 864 hdr.xmin = hdr.ymin = 0; |
| 1297 | 865 hdr.xmax = (img->width * spec->scaleX) - 1; |
| 866 hdr.ymax = (img->height * spec->scaleY) - 1; | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
867 hdr.palInfo = 1; |
|
1283
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
868 hdr.hScreenSize = hdr.hres; |
|
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
869 hdr.vScreenSize = hdr.vres; |
| 435 | 870 |
| 1291 | 871 // TODO XXX .. maybe actually compute these asdf |
| 872 hdr.bitsPerPlane = 8; | |
| 873 hdr.nplanes = dmImageGetBytesPerPixel(pcx.format); | |
| 874 | |
| 1284 | 875 res = img->width * spec->scaleX; |
| 435 | 876 hdr.bpl = res / 2; |
| 877 if (res % 2) hdr.bpl++; | |
| 878 hdr.bpl *= 2; | |
| 879 | |
| 1297 | 880 dmMsg(2, |
| 881 "PCX: xmin=%d, ymin=%d, xmax=%d, ymax=%d, res=%dx%d, scr=%dx%d\n", | |
| 882 hdr.xmin, hdr.ymin, hdr.xmax, hdr.ymax, | |
| 883 hdr.hres, hdr.vres, | |
| 884 hdr.hScreenSize, hdr.vScreenSize); | |
| 885 | |
| 886 dmMsg(2, "PCX: nplanes=%d, bpp=%d, bpl=%d, isPaletted=%s\n", | |
| 887 hdr.nplanes, hdr.bitsPerPlane, hdr.bpl, spec->paletted ? "yes" : "no"); | |
| 435 | 888 |
| 1291 | 889 // TODO XXX this is also bogus |
| 435 | 890 pcx.bufLen = hdr.bpl * 4; |
| 891 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 892 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
893 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
894 "PCX: Could not allocate %d bytes for RLE compression buffer.\n", |
| 435 | 895 pcx.bufLen); |
| 896 goto error; | |
| 897 } | |
| 898 | |
| 899 // Write PCX header | |
| 900 if (!dm_fwrite_byte(pcx.fp, hdr.manufacturer) || | |
| 901 !dm_fwrite_byte(pcx.fp, hdr.version) || | |
| 902 !dm_fwrite_byte(pcx.fp, hdr.encoding) || | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
903 !dm_fwrite_byte(pcx.fp, hdr.bitsPerPlane)) |
| 435 | 904 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
905 res = dmError(DMERR_FWRITE, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
906 "PCX: Could not write basic header data.\n"); |
| 435 | 907 goto error; |
| 908 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
909 |
| 435 | 910 if (!dm_fwrite_le16(pcx.fp, hdr.xmin) || |
| 911 !dm_fwrite_le16(pcx.fp, hdr.ymin) || | |
| 912 !dm_fwrite_le16(pcx.fp, hdr.xmax) || | |
| 913 !dm_fwrite_le16(pcx.fp, hdr.ymax) || | |
| 914 !dm_fwrite_le16(pcx.fp, hdr.hres) || | |
| 915 !dm_fwrite_le16(pcx.fp, hdr.vres)) | |
| 916 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
917 res = dmError(DMERR_FWRITE, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
918 "PCX: Could not write image dimensions.\n"); |
| 435 | 919 goto error; |
| 920 } | |
| 921 | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
922 if (!dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.colorMap, sizeof(hdr.colorMap))) |
| 435 | 923 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
924 res = dmError(DMERR_FWRITE, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
925 "PCX: Could not write colormap.\n"); |
| 435 | 926 goto error; |
| 927 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
928 |
| 435 | 929 if (!dm_fwrite_byte(pcx.fp, hdr.reserved) || |
| 930 !dm_fwrite_byte(pcx.fp, hdr.nplanes) || | |
| 931 !dm_fwrite_le16(pcx.fp, hdr.bpl) || | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
932 !dm_fwrite_le16(pcx.fp, hdr.palInfo) || |
|
1283
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
933 !dm_fwrite_le16(pcx.fp, hdr.hScreenSize) || |
|
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
934 !dm_fwrite_le16(pcx.fp, hdr.vScreenSize) || |
| 435 | 935 !dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) |
| 936 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
937 res = dmError(DMERR_FWRITE, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
938 "PCX: Could not write header remainder.\n"); |
| 435 | 939 goto error; |
| 940 } | |
| 941 | |
| 942 // Write image data | |
| 943 res = dmWriteImageData(img, (void *) &pcx, dmWritePCXRow, spec); | |
| 944 | |
| 945 // Write VGA palette | |
| 946 if (spec->paletted) | |
| 947 { | |
| 948 int i; | |
|
1294
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
949 dmMsg(2, "PCX: Writing palette of %d active entries.\n", img->ncolors); |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
950 |
| 435 | 951 dm_fwrite_byte(pcx.fp, 0x0C); |
| 952 | |
| 953 for (i = 0; i < img->ncolors; i++) | |
| 954 { | |
|
1294
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
955 if (!dm_fwrite_byte(pcx.fp, img->pal[i].r) || |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
956 !dm_fwrite_byte(pcx.fp, img->pal[i].g) || |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
957 !dm_fwrite_byte(pcx.fp, img->pal[i].b)) |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
958 { |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
959 res = dmError(DMERR_FWRITE, |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
960 "PCX: Could not write palette data.\n"); |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
961 goto error; |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
962 } |
| 435 | 963 } |
| 964 | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
965 // Pad the palette, if necessary |
| 435 | 966 for (; i < 256; i++) |
| 967 { | |
|
1294
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
968 if (!dm_fwrite_byte(pcx.fp, 0) || |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
969 !dm_fwrite_byte(pcx.fp, 0) || |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
970 !dm_fwrite_byte(pcx.fp, 0)) |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
971 { |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
972 res = dmError(DMERR_FWRITE, |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
973 "PCX: Could not write palette data.\n"); |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
974 goto error; |
|
9f2117f1584a
Improve error checking in PCX writer.
Matti Hamalainen <ccr@tnsp.org>
parents:
1292
diff
changeset
|
975 } |
| 435 | 976 } |
| 977 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
978 |
| 435 | 979 error: |
| 980 dmFree(pcx.buf); | |
| 981 return res; | |
| 982 } | |
| 983 | |
| 984 | |
|
1290
e7dc9bb9777e
Rename struct DMImageSpec to DMImageConvSpec.
Matti Hamalainen <ccr@tnsp.org>
parents:
1288
diff
changeset
|
985 int dmWritePCXImage(const char *filename, DMImage *img, const DMImageConvSpec *spec) |
| 435 | 986 { |
| 987 FILE *fp; | |
| 988 int res; | |
| 989 | |
| 990 if ((fp = fopen(filename, "wb")) == NULL) | |
| 991 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
992 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
993 "PCX: Could not open file '%s' for writing.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
994 filename); |
| 435 | 995 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
996 |
| 435 | 997 res = dmWritePCXImageFILE(fp, img, spec); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
998 |
| 435 | 999 fclose(fp); |
| 1000 return res; | |
| 1001 } | |
| 1002 | |
| 1003 | |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1004 static BOOL dmPCXDecodeRLERow(FILE *fp, Uint8 *buf, const size_t bufLen) |
| 435 | 1005 { |
| 1006 size_t offs = 0; | |
| 1007 do | |
| 1008 { | |
| 1009 int count; | |
| 1010 Uint8 data; | |
| 1011 | |
| 1012 if (!dm_fread_byte(fp, &data)) | |
| 1013 return FALSE; | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1014 |
| 435 | 1015 if ((data & 0xC0) == 0xC0) |
| 1016 { | |
| 1284 | 1017 BOOL skip = FALSE; |
| 435 | 1018 count = data & 0x3F; |
| 1284 | 1019 if (count == 0) |
| 1020 { | |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1021 switch (dmGFXErrorMode) |
| 1284 | 1022 { |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1023 case DM_ERRMODE_RECOV_1: |
| 1284 | 1024 // Use as literal |
| 1025 skip = TRUE; | |
| 1026 count = 1; | |
| 1027 break; | |
| 1028 | |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1029 case DM_ERRMODE_RECOV_2: |
| 1284 | 1030 // Ignore completely |
| 1031 skip = TRUE; | |
| 1032 break; | |
| 1033 | |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1034 case DM_ERRMODE_FAIL: |
| 1284 | 1035 default: |
| 1036 // Error out on "invalid" data | |
| 1037 return FALSE; | |
| 1038 } | |
| 1039 } | |
| 1040 | |
| 1041 if (!skip && !dm_fread_byte(fp, &data)) | |
| 435 | 1042 return FALSE; |
| 1043 } | |
| 1044 else | |
| 1045 count = 1; | |
| 1046 | |
| 1047 while (count-- && offs < bufLen) | |
| 1048 buf[offs++] = data; | |
| 1049 | |
| 1284 | 1050 // Check for remaining output count, error out if we wish to |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1051 if (count > 0 && dmGFXErrorMode == DM_ERRMODE_FAIL) |
| 1284 | 1052 return FALSE; |
| 1053 | |
| 435 | 1054 } while (offs < bufLen); |
| 1055 | |
| 1056 return TRUE; | |
| 1057 } | |
| 1058 | |
| 1059 | |
| 1060 int dmReadPCXImageFILE(FILE *fp, DMImage **pimg) | |
| 1061 { | |
| 1062 DMImage *img; | |
| 1063 DMPCXData pcx; | |
| 1064 DMPCXHeader hdr; | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1065 int res = 0; |
| 1286 | 1066 BOOL isPaletted; |
| 435 | 1067 pcx.buf = NULL; |
| 1068 | |
| 1069 // Read PCX header | |
| 1070 if (!dm_fread_byte(fp, &hdr.manufacturer) || | |
| 1071 !dm_fread_byte(fp, &hdr.version) || | |
| 1072 !dm_fread_byte(fp, &hdr.encoding) || | |
| 1298 | 1073 !dm_fread_byte(fp, &hdr.bitsPerPlane) || |
| 1074 !dm_fread_le16(fp, &hdr.xmin) || | |
| 435 | 1075 !dm_fread_le16(fp, &hdr.ymin) || |
| 1076 !dm_fread_le16(fp, &hdr.xmax) || | |
| 1077 !dm_fread_le16(fp, &hdr.ymax) || | |
| 1078 !dm_fread_le16(fp, &hdr.hres) || | |
| 1298 | 1079 !dm_fread_le16(fp, &hdr.vres) || |
| 1080 !dm_fread_str(fp, (Uint8 *) &hdr.colorMap, sizeof(hdr.colorMap)) || | |
| 1081 !dm_fread_byte(fp, &hdr.reserved) || | |
| 435 | 1082 !dm_fread_byte(fp, &hdr.nplanes) || |
| 1083 !dm_fread_le16(fp, &hdr.bpl) || | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1084 !dm_fread_le16(fp, &hdr.palInfo) || |
|
1283
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
1085 !dm_fread_le16(fp, &hdr.hScreenSize) || |
|
642a0dd98c6e
Oops, forgot to adjust the writing and reading when adding two members to
Matti Hamalainen <ccr@tnsp.org>
parents:
1281
diff
changeset
|
1086 !dm_fread_le16(fp, &hdr.vScreenSize) || |
| 435 | 1087 !dm_fread_str(fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) |
| 1088 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1089 res = dmError(DMERR_FREAD, |
| 1298 | 1090 "PCX: Could not read image header data.\n"); |
| 1091 goto error; | |
| 1092 } | |
| 1093 | |
| 1094 if (hdr.manufacturer != 10 || | |
| 1095 hdr.version > 5 || | |
| 1096 hdr.encoding != 1) | |
| 1097 { | |
| 1098 res = dmError(DMERR_NOT_SUPPORTED, | |
| 1099 "PCX: Not a PCX file, or unsupported variant.\n"); | |
| 435 | 1100 goto error; |
| 1101 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1102 |
|
1295
7a986f33895e
Fix isPaletted check in PCX reader :P
Matti Hamalainen <ccr@tnsp.org>
parents:
1294
diff
changeset
|
1103 isPaletted = (hdr.bitsPerPlane * hdr.nplanes) <= 8; |
| 1291 | 1104 |
| 1105 dmMsg(2, | |
| 1106 "PCX: xmin=%d, ymin=%d, xmax=%d, ymax=%d, res=%dx%d, scr=%dx%d\n", | |
| 1107 hdr.xmin, hdr.ymin, hdr.xmax, hdr.ymax, | |
| 1108 hdr.hres, hdr.vres, | |
| 1109 hdr.hScreenSize, hdr.vScreenSize); | |
| 1110 | |
| 1111 dmMsg(2, | |
| 1112 "PCX: nplanes=%d, bpp=%d, bpl=%d, isPaletted=%s\n", | |
| 1113 hdr.nplanes, hdr.bitsPerPlane, hdr.bpl, isPaletted ? "yes" : "no"); | |
| 1114 | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1115 if (hdr.nplanes < 1 || hdr.nplanes > 8) |
| 435 | 1116 { |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1117 res = dmError(DMERR_NOT_SUPPORTED, |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1118 "PCX: Unsupported number of bitplanes %d.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1119 hdr.nplanes); |
| 435 | 1120 goto error; |
| 1121 } | |
| 1122 | |
| 1286 | 1123 if (!isPaletted) |
| 1124 { | |
| 1125 res = dmError(DMERR_NOT_SUPPORTED, | |
| 1126 "PCX: Non-indexed (truecolour) PCX images not supported for loading.\n"); | |
| 1127 goto error; | |
| 1128 } | |
| 1129 | |
| 435 | 1130 // Allocate image |
| 1286 | 1131 if ((*pimg = img = dmImageAlloc(hdr.xmax - hdr.xmin + 1, hdr.ymax - hdr.ymin + 1, |
| 1132 isPaletted ? DM_IFMT_PALETTE : DM_IFMT_RGBA, | |
| 1133 isPaletted ? (hdr.bitsPerPlane * hdr.nplanes) : -1)) == NULL) | |
| 435 | 1134 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1135 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1136 "PCX: Could not allocate image structure.\n"); |
| 435 | 1137 goto error; |
| 1138 } | |
| 1139 | |
| 1298 | 1140 // Sanity check bytes per line value |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1141 if (hdr.bpl < (img->width * hdr.bitsPerPlane) / 8) |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1142 { |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1143 res = dmError(DMERR_MALLOC, |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1144 "PCX: The bytes per plane line value %d is smaller than width*bpp/8 = %d!\n", |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1145 hdr.bpl, (img->width * hdr.bitsPerPlane) / 8); |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1146 goto error; |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1147 } |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1148 |
| 435 | 1149 pcx.bufLen = hdr.nplanes * hdr.bpl; |
| 1150 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 1151 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1152 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1153 "PCX: Could not allocate RLE buffer.\n"); |
| 435 | 1154 goto error; |
| 1155 } | |
| 1156 | |
| 1157 // Read image data | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1158 Uint8 *dp = img->data; |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1159 for (int yc = 0; yc < img->height; yc++) |
| 435 | 1160 { |
| 1161 // Decode row of RLE'd data | |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1162 if (!dmPCXDecodeRLERow(fp, pcx.buf, pcx.bufLen)) |
| 435 | 1163 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1164 res = dmError(DMERR_INVALID_DATA, |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1165 "PCX: Error decoding RLE compressed data.\n"); |
| 435 | 1166 goto error; |
| 1167 } | |
| 1296 | 1168 |
| 435 | 1169 // Decode bitplanes |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1170 switch (hdr.bitsPerPlane) |
| 435 | 1171 { |
| 1296 | 1172 case 32: |
| 1173 case 24: | |
| 1174 case 16: | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1175 case 8: |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1176 { |
| 1286 | 1177 // Actually bytes and bits per plane per pixel .. |
| 1178 const int bytesPerPlane = hdr.bitsPerPlane / 8; | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1179 |
| 1286 | 1180 for (int nplane = 0; nplane < hdr.nplanes; nplane++) |
| 1181 { | |
| 1182 Uint8 *dptr = dp + (nplane * bytesPerPlane), | |
| 1183 *sptr = pcx.buf + (hdr.bpl * nplane); | |
| 1184 | |
| 1185 memcpy(dptr, sptr, img->width * bytesPerPlane); | |
| 1186 } | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1187 } |
| 435 | 1188 break; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1189 |
|
1280
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1190 case 1: |
| 1296 | 1191 memset(dp, 0, img->width); |
| 1192 | |
|
1280
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1193 for (int nplane = 0; nplane < hdr.nplanes; nplane++) |
|
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1194 { |
| 1296 | 1195 Uint8 *sptr = pcx.buf + (hdr.bpl * nplane); |
|
1280
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1196 |
|
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1197 for (int xc = 0; xc < img->width; xc++) |
| 1296 | 1198 { |
| 1199 const int qx = xc * 2; | |
| 1200 const int px = 7 - (qx & 7); | |
| 1201 dp[xc] |= (sptr[qx / 8] & (1 << px)) >> (px - nplane); | |
| 1202 } | |
|
1280
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1203 } |
|
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1204 break; |
|
300a51e98fc3
Bump version and copyright.
Matti Hamalainen <ccr@tnsp.org>
parents:
1279
diff
changeset
|
1205 |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1206 default: |
|
1285
e4bda4909d72
Make libgfx error mode a global variable, at least for now.
Matti Hamalainen <ccr@tnsp.org>
parents:
1284
diff
changeset
|
1207 res = dmError(DMERR_NOT_SUPPORTED, |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1208 "PCX: Unsupported number of bits per plane %d.\n", |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1209 hdr.bitsPerPlane); |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1210 goto error; |
| 435 | 1211 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1212 |
| 435 | 1213 dp += img->pitch; |
| 1214 } | |
| 1215 | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1216 // Read additional VGA palette, if available |
| 1286 | 1217 if (isPaletted) |
| 435 | 1218 { |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1219 int ncolors; |
| 435 | 1220 Uint8 tmpb; |
| 1221 BOOL read; | |
| 1222 | |
| 1223 if (!dm_fread_byte(fp, &tmpb) || tmpb != 0x0C) | |
| 1224 { | |
| 1225 read = FALSE; | |
| 1296 | 1226 ncolors = 256; // KLUDGE |
| 435 | 1227 } |
| 1228 else | |
| 1229 { | |
| 1230 read = TRUE; | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1231 ncolors = 256; |
| 435 | 1232 } |
| 1233 | |
|
460
0af039b6c0ae
Improve transparent color handling.
Matti Hamalainen <ccr@tnsp.org>
parents:
453
diff
changeset
|
1234 if (!dmImageAllocPalette(img, ncolors, -1)) |
| 435 | 1235 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1236 res = dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1237 "PCX: Could not allocate palette data!\n"); |
| 435 | 1238 goto error; |
| 1239 } | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1240 |
| 435 | 1241 if (read) |
| 1242 { | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1243 // Okay, attempt to read the palette data |
| 1296 | 1244 dmMsg(2, "PCX: Reading palette of %d colors\n", ncolors); |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1245 if (!dmReadPaletteData(fp, img->pal, ncolors)) |
| 435 | 1246 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1247 res = dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1248 "PCX: Error reading palette.\n"); |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1249 goto error; |
| 435 | 1250 } |
| 1251 } | |
| 1252 else | |
| 1253 { | |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1254 // If the extra palette is not available, copy the colors from |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1255 // the header palette to our internal palette structure. |
| 1296 | 1256 dmMsg(2, "PCX: Initializing palette from header of %d colors\n", ncolors); |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1257 for (int i = 0; i < (img->ncolors > DMPCX_PAL_COLORS ? DMPCX_PAL_COLORS : img->ncolors); i++) |
| 435 | 1258 { |
|
1279
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1259 img->pal[i].r = hdr.colorMap[i].r; |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1260 img->pal[i].g = hdr.colorMap[i].g; |
|
0d3f5f44c0c4
Somewhat improve PCX read support in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1265
diff
changeset
|
1261 img->pal[i].b = hdr.colorMap[i].b; |
| 435 | 1262 } |
| 1263 } | |
| 1264 } | |
| 1265 | |
| 1266 error: | |
| 1267 dmFree(pcx.buf); | |
| 1268 return res; | |
| 1269 } | |
| 1270 | |
| 1271 | |
| 1272 int dmReadPCXImage(const char *filename, DMImage **pimg) | |
| 1273 { | |
| 1274 FILE *fp; | |
| 1275 int res; | |
| 1276 | |
| 1277 if ((fp = fopen(filename, "rb")) == NULL) | |
| 1278 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1279 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1280 "PCX: Could not open file '%s' for reading.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1281 filename); |
| 435 | 1282 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1283 |
| 435 | 1284 res = dmReadPCXImageFILE(fp, pimg); |
| 1285 | |
| 1286 fclose(fp); | |
| 1287 return res; | |
| 1288 } | |
| 1289 | |
| 1290 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1291 #define IFF_ID_FORM 0x464F524D // "FORM" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1292 #define IFF_ID_ILBM 0x494C424D // "ILBM" |
| 464 | 1293 #define IFF_ID_PBM 0x50424D20 // "PBM " |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1294 #define IFF_ID_BMHD 0x424D4844 // "BMHD" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1295 #define IFF_ID_CMAP 0x434D4150 // "CMAP" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1296 #define IFF_ID_BODY 0x424F4459 // "BODY" |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1297 #define IFF_ID_CAMG 0x43414D47 // "CAMG" |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1298 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1299 #define IFF_MASK_NONE 0 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1300 #define IFF_MASK_HAS_MASK 1 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1301 #define IFF_MASK_TRANSP 2 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1302 #define IFF_MASK_LASSO 3 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1303 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1304 #define IFF_COMP_NONE 0 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1305 #define IFF_COMP_BYTERUN1 1 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1306 |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1307 #define IFF_CAMG_LACE 0x00000004 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1308 #define IFF_CAMG_HALFBRITE 0x00000080 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1309 #define IFF_CAMG_HAM 0x00000800 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1310 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1311 typedef struct |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1312 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1313 Uint32 id; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1314 Uint32 size; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1315 int count; |
| 445 | 1316 char str[6]; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1317 } DMIFFChunk; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1318 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1319 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1320 typedef struct |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1321 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1322 Uint16 w, h; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1323 Sint16 x, y; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1324 Uint8 nplanes; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1325 Uint8 masking; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1326 Uint8 compression; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1327 Uint8 pad1; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1328 Uint16 transp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1329 Uint8 xasp, yasp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1330 Sint16 pagew, pageh; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1331 } DMIFFBMHD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1332 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1333 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1334 typedef struct |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1335 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1336 DMIFFChunk chBMHD, chCMAP, chBODY; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1337 DMIFFBMHD bmhd; |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1338 Uint32 camg; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1339 int ncolors; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1340 DMColor *pal; |
| 1286 | 1341 BOOL planar; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1342 } DMIFF; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1343 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1344 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1345 static BOOL dmReadIFFChunk(FILE *fp, DMIFFChunk *chunk) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1346 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1347 if (!dm_fread_be32(fp, &chunk->id) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1348 !dm_fread_be32(fp, &chunk->size)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1349 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1350 dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1351 "ILBM: Could not read IFF chunk header.\n"); |
|
1264
aa6e8a24b94b
Oops, when did I break this? IFF ILBM reader should now work again.
Matti Hamalainen <ccr@tnsp.org>
parents:
1167
diff
changeset
|
1352 return FALSE; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1353 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1354 else |
|
1264
aa6e8a24b94b
Oops, when did I break this? IFF ILBM reader should now work again.
Matti Hamalainen <ccr@tnsp.org>
parents:
1167
diff
changeset
|
1355 return TRUE; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1356 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1357 |
| 445 | 1358 static char * dmGetIFFChunkID(DMIFFChunk *chunk) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1359 { |
| 445 | 1360 chunk->str[0] = (chunk->id >> 24) & 0xff; |
| 1361 chunk->str[1] = (chunk->id >> 16) & 0xff; | |
| 1362 chunk->str[2] = (chunk->id >> 8) & 0xff; | |
| 1363 chunk->str[3] = (chunk->id) & 0xff; | |
| 1364 chunk->str[4] = 0; | |
| 1365 return chunk->str; | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1366 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1367 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1368 static int dmSkipIFFChunkRest(FILE *fp, const DMIFFChunk *chunk, const Uint32 used) |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1369 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1370 if (chunk->size > used) |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1371 { |
| 465 | 1372 dmMsg(4, "ILBM: Skipping %d bytes (%d of %d consumed)\n", |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1373 chunk->size - used, used, chunk->size); |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1374 |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1375 if (fseeko(fp, chunk->size - used, SEEK_CUR) != 0) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1376 { |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1377 return dmError(DMERR_FSEEK, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1378 "ILBM: Failed to skip chunk end.\n"); |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1379 } |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1380 else |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1381 return DMERR_OK; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1382 } |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1383 else |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1384 return DMERR_OK; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1385 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1386 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1387 static int dmCheckIFFChunk(DMIFFChunk *dest, DMIFFChunk *chunk, |
| 445 | 1388 const BOOL multi, const Uint32 minSize) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1389 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1390 if (dest->count > 0 && !multi) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1391 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1392 return dmError(DMERR_INVALID_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1393 "ILBM: Multiple instances of chunk %s found.\n", |
| 445 | 1394 dmGetIFFChunkID(chunk)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1395 } |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1396 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1397 dest->count++; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1398 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1399 if (chunk->size < minSize) |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1400 { |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1401 return dmError(DMERR_OUT_OF_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1402 "ILBM: Chunk is too small.\n"); |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1403 } |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1404 |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1405 return DMERR_OK; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1406 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1407 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1408 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1409 static BOOL dmIFFDecodeByteRun1Row(FILE *fp, Uint8 *buf, const size_t bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1410 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1411 size_t offs = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1412 do |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1413 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1414 Sint8 dcount; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1415 Uint8 data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1416 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1417 if (!dm_fread_byte(fp, (Uint8 *) &dcount)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1418 return FALSE; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1419 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1420 if (dcount == -128) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1421 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1422 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1423 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1424 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1425 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1426 if (dcount < 0) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1427 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1428 int count = (-dcount) + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1429 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1430 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1431 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1432 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1433 buf[offs++] = data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1434 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1435 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1436 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1437 int count = dcount + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1438 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1439 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1440 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1441 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1442 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1443 buf[offs++] = data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1444 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1445 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1446 } while (offs < bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1447 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1448 return TRUE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1449 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1450 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1451 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1452 static BOOL dmIFFReadOneRow(FILE *fp, DMIFF *iff, Uint8 *buf, const size_t bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1453 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1454 if (iff->bmhd.compression == IFF_COMP_BYTERUN1) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1455 return dmIFFDecodeByteRun1Row(fp, buf, bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1456 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1457 return dm_fread_str(fp, buf, bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1458 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1459 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1460 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1461 void dmDecodeBitPlane(Uint8 *dp, Uint8 *src, const int width, const int nplane) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1462 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1463 int xc; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1464 for (xc = 0; xc < width; xc++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1465 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1466 const Uint8 data = (src[xc / 8] >> (7 - (xc & 7))) & 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1467 dp[xc] |= (data << nplane); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1468 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1469 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1470 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1471 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1472 int dmDecodeILBMBody(FILE *fp, DMIFF *iff, DMImage **pimg, Uint32 *read) |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1473 { |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1474 DMImage *img; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1475 Uint8 *buf; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1476 size_t bufLen; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1477 int yc, res = DMERR_OK; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1478 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1479 *read = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1480 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1481 // Allocate image |
| 1286 | 1482 if ((*pimg = img = dmImageAlloc(iff->bmhd.w, iff->bmhd.h, |
| 1483 iff->bmhd.nplanes < 8 ? DM_IFMT_PALETTE : DM_IFMT_RGBA, | |
| 1484 iff->bmhd.nplanes < 8 ? iff->bmhd.nplanes : -1)) == NULL) | |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1485 return DMERR_MALLOC; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1486 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1487 // Allocate planar decoding buffer |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1488 bufLen = ((img->width + 15) / 16) * 2; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1489 if ((buf = dmMalloc(bufLen)) == NULL) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1490 return DMERR_MALLOC; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1491 |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1492 dmMsg(2, "ILBM: plane row size %d bytes.\n", bufLen); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1493 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1494 // Decode the chunk |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1495 for (yc = 0; yc < img->height; yc++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1496 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1497 int plane; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1498 const int nplanes = iff->bmhd.nplanes; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1499 Uint8 *dp = img->data + (yc * img->pitch); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1500 |
| 1167 | 1501 dmMemset(dp, 0, img->pitch); |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1502 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1503 for (plane = 0; plane < nplanes; plane++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1504 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1505 // Decompress or read data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1506 if (!dmIFFReadOneRow(fp, iff, buf, bufLen)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1507 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1508 res = dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1509 "ILBM: Error in reading image plane #%d @ %d.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1510 plane, yc); |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1511 goto error; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1512 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1513 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1514 // Decode bitplane |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1515 dmDecodeBitPlane(dp, buf, img->width, plane); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1516 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1517 *read += bufLen; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1518 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1519 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1520 // Read mask data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1521 if (iff->bmhd.masking == IFF_MASK_HAS_MASK) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1522 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1523 int xc; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1524 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1525 // Decompress or read data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1526 if (!dmIFFReadOneRow(fp, iff, buf, bufLen)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1527 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1528 res = dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1529 "ILBM: Error in reading mask plane.\n"); |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1530 goto error; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1531 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1532 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1533 // Decode mask |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1534 for (xc = 0; xc < img->width; xc++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1535 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1536 const Uint8 data = (buf[xc / 8] >> (7 - (xc & 7))) & 1; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1537 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1538 // Black out any pixels with mask bit 0 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1539 if (!data) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1540 dp[xc] = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1541 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1542 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1543 *read += bufLen; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1544 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1545 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1546 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1547 error: |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1548 dmFree(buf); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1549 return res; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1550 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1551 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1552 |
| 464 | 1553 int dmDecodePBMBody(FILE *fp, DMIFF *iff, DMImage **pimg, Uint32 *read) |
| 1554 { | |
| 1555 DMImage *img; | |
| 1556 int yc, res = DMERR_OK; | |
| 1557 | |
| 1558 *read = 0; | |
| 1559 | |
| 1560 // Allocate image | |
| 1286 | 1561 if ((*pimg = img = dmImageAlloc(iff->bmhd.w, iff->bmhd.h, |
| 1562 iff->bmhd.nplanes < 8 ? DM_IFMT_PALETTE : DM_IFMT_RGBA, | |
| 1563 iff->bmhd.nplanes < 8 ? iff->bmhd.nplanes : -1)) == NULL) | |
| 464 | 1564 return DMERR_MALLOC; |
| 1565 | |
| 1566 // Decode the chunk | |
| 1567 for (yc = 0; yc < img->height; yc++) | |
| 1568 { | |
| 1569 Uint8 *dp = img->data + (yc * img->pitch); | |
| 1570 | |
| 1571 if (!dmIFFReadOneRow(fp, iff, dp, img->width)) | |
| 1572 { | |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1573 res = dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1574 "ILBM: Error in reading image row #%d.\n", yc); |
| 464 | 1575 goto error; |
| 1576 } | |
| 1577 | |
| 1578 *read += img->width; | |
| 1579 } | |
| 1580 | |
| 1581 error: | |
| 1582 return res; | |
| 1583 } | |
| 1584 | |
| 1585 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1586 int dmReadILBMImageFILE(FILE *fp, DMImage **pimg) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1587 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1588 Uint32 idILBM; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1589 DMIFFChunk chunk; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1590 DMIFF iff; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1591 Uint32 read; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1592 BOOL parsed = FALSE; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1593 int i, res = DMERR_OK; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1594 |
| 1167 | 1595 dmMemset(&iff, 0, sizeof(iff)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1596 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1597 // Read IFF FORM header |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1598 if (!dmReadIFFChunk(fp, &chunk) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1599 chunk.id != IFF_ID_FORM || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1600 chunk.size < 32) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1601 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1602 return dmError(DMERR_NOT_SUPPORTED, |
|
1265
4e074b9b4789
Improve IFF FORM validity error message.
Matti Hamalainen <ccr@tnsp.org>
parents:
1264
diff
changeset
|
1603 "ILBM: Not a IFF file (%08X vs %08X / %d).\n", |
|
4e074b9b4789
Improve IFF FORM validity error message.
Matti Hamalainen <ccr@tnsp.org>
parents:
1264
diff
changeset
|
1604 chunk.id, IFF_ID_FORM, chunk.size); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1605 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1606 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1607 // Check IFF ILBM signature |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1608 if (!dm_fread_be32(fp, &idILBM) || |
| 464 | 1609 (idILBM != IFF_ID_ILBM && idILBM != IFF_ID_PBM)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1610 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1611 return dmError(DMERR_INVALID_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1612 "ILBM: Not a ILBM file.\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1613 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1614 |
| 464 | 1615 iff.planar = (idILBM == IFF_ID_ILBM); |
| 1616 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1617 while (!parsed && !feof(fp)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1618 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1619 if (!dmReadIFFChunk(fp, &chunk)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1620 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1621 return dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1622 "ILBM: Error reading IFF ILBM data.\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1623 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1624 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1625 switch (chunk.id) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1626 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1627 case IFF_ID_BMHD: |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1628 // Check for multiple occurences of BMHD |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1629 if ((res = dmCheckIFFChunk(&iff.chBMHD, &chunk, FALSE, sizeof(iff.bmhd))) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1630 return res; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1631 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1632 // Read BMHD data |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1633 if (!dm_fread_be16(fp, &iff.bmhd.w) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1634 !dm_fread_be16(fp, &iff.bmhd.h) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1635 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.x) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1636 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.y) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1637 !dm_fread_byte(fp, &iff.bmhd.nplanes) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1638 !dm_fread_byte(fp, &iff.bmhd.masking) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1639 !dm_fread_byte(fp, &iff.bmhd.compression) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1640 !dm_fread_byte(fp, &iff.bmhd.pad1) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1641 !dm_fread_be16(fp, &iff.bmhd.transp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1642 !dm_fread_byte(fp, &iff.bmhd.xasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1643 !dm_fread_byte(fp, &iff.bmhd.yasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1644 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.pagew) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1645 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.pageh)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1646 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1647 return dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1648 "ILBM: Error reading BMHD chunk.\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1649 } |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1650 |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1651 dmMsg(2, "ILBM: BMHD %d x %d @ %d, %d : nplanes=%d, comp=%d, mask=%d\n", |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1652 iff.bmhd.w, iff.bmhd.h, iff.bmhd.x, iff.bmhd.y, |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1653 iff.bmhd.nplanes, iff.bmhd.compression, iff.bmhd.masking); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1654 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1655 // Sanity check |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1656 if (iff.bmhd.nplanes < 1 || iff.bmhd.nplanes > 8 || |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1657 (iff.bmhd.compression != IFF_COMP_NONE && |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1658 iff.bmhd.compression != IFF_COMP_BYTERUN1) || |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1659 (iff.bmhd.masking != IFF_MASK_NONE && |
|
448
f1aab48a76fe
Add transp mask support to IFF ILBM loader.
Matti Hamalainen <ccr@tnsp.org>
parents:
447
diff
changeset
|
1660 iff.bmhd.masking != IFF_MASK_HAS_MASK && |
|
f1aab48a76fe
Add transp mask support to IFF ILBM loader.
Matti Hamalainen <ccr@tnsp.org>
parents:
447
diff
changeset
|
1661 iff.bmhd.masking != IFF_MASK_TRANSP)) |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1662 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1663 return dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1664 "ILBM: Unsupported features, refusing to load.\n"); |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1665 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1666 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1667 if ((res = dmSkipIFFChunkRest(fp, &chunk, sizeof(iff.bmhd))) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1668 return res; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1669 break; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1670 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1671 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1672 case IFF_ID_CMAP: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1673 // Check for multiple occurences of CMAP |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1674 if ((res = dmCheckIFFChunk(&iff.chCMAP, &chunk, FALSE, 3)) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1675 return res; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1676 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1677 // Check for sanity |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1678 if (chunk.size % 3 != 0) |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1679 { |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1680 // Non-fatal |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1681 dmError(DMERR_INVALID_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1682 "ILBM: CMAP chunk size not divisible by 3, possibly broken file.\n"); |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1683 } |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1684 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1685 iff.ncolors = chunk.size / 3; |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1686 dmMsg(2, "ILBM: CMAP %d entries (%d bytes)\n", |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1687 iff.ncolors, chunk.size, 1 << iff.bmhd.nplanes); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1688 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1689 if (iff.bmhd.nplanes > 0 && iff.ncolors != 1 << iff.bmhd.nplanes) |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1690 dmMsg(2, "ILBM: Expected %d entries in CMAP.\n", 1 << iff.bmhd.nplanes); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1691 |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1692 // Read palette |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1693 if (iff.ncolors > 0) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1694 { |
|
461
c7a3aacbd55e
Implement transparent color in IFF ILBM reader and ctransp setting in PNG reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
460
diff
changeset
|
1695 if (!dmPaletteAlloc(&iff.pal, iff.ncolors, |
|
c7a3aacbd55e
Implement transparent color in IFF ILBM reader and ctransp setting in PNG reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
460
diff
changeset
|
1696 (iff.bmhd.masking == IFF_MASK_TRANSP) ? iff.bmhd.transp : -1)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1697 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1698 return dmError(DMERR_MALLOC, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1699 "ILBM: Could not allocate palette data.\n"); |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1700 } |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1701 if (!dmReadPaletteData(fp, iff.pal, iff.ncolors)) |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1702 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1703 return dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1704 "ILBM: Error reading CMAP.\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1705 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1706 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1707 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1708 if (iff.chBMHD.count && iff.chBODY.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1709 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1710 break; |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1711 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1712 case IFF_ID_BODY: |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1713 // Check for multiple occurences of CMAP |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1714 if ((res = dmCheckIFFChunk(&iff.chBODY, &chunk, FALSE, 1)) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1715 return res; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1716 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1717 // Check for sanity |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1718 if (!iff.chBMHD.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1719 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1720 return dmError(DMERR_INVALID_DATA, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1721 "ILBM: BODY chunk before BMHD?\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1722 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1723 |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1724 dmMsg(2, "ILBM: BODY chunk size %d bytes\n", chunk.size); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1725 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1726 // Decode the body |
| 464 | 1727 if (iff.planar) |
| 1728 { | |
| 1729 if ((res = dmDecodeILBMBody(fp, &iff, pimg, &read)) != DMERR_OK) | |
| 1730 return res; | |
| 1731 } | |
| 1732 else | |
| 1733 { | |
| 1734 if ((res = dmDecodePBMBody(fp, &iff, pimg, &read)) != DMERR_OK) | |
| 1735 return res; | |
| 1736 } | |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1737 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1738 if ((res = dmSkipIFFChunkRest(fp, &chunk, read)) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1739 return res; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1740 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1741 if (iff.chCMAP.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1742 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1743 break; |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1744 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1745 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1746 case IFF_ID_CAMG: |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1747 if (!dm_fread_be32(fp, &iff.camg)) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1748 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1749 return dmError(DMERR_FREAD, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1750 "ILBM: Error reading CAMG chunk.\n"); |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1751 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1752 |
|
1287
32051ad352c8
Adjust debug messages and debug message levels in libgfx.
Matti Hamalainen <ccr@tnsp.org>
parents:
1286
diff
changeset
|
1753 dmMsg(2, "ILBM: CAMG value 0x%08x\n", iff.camg); |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1754 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1755 if ((iff.camg & IFF_CAMG_HAM)) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1756 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1757 return dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1758 "ILBM: HAM files are not supported.\n"); |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1759 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1760 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1761 if ((res = dmSkipIFFChunkRest(fp, &chunk, sizeof(Uint32))) != DMERR_OK) |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1762 return res; |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1763 break; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1764 |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1765 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1766 default: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1767 { |
| 465 | 1768 dmMsg(4, "Unknown chunk ID '%s', size %d\n", |
| 445 | 1769 dmGetIFFChunkID(&chunk), chunk.size); |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1770 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1771 if (fseeko(fp, chunk.size, SEEK_CUR) != 0) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1772 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1773 return dmError(DMERR_FSEEK, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1774 "ILBM: Error skipping in file."); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1775 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1776 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1777 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1778 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1779 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1780 if (chunk.size & 1) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1781 fgetc(fp); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1782 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1783 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1784 // Set colormap after finishing |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1785 if (iff.pal != NULL && iff.ncolors > 0 && *pimg != NULL) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1786 { |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1787 // If halfbrite is used, duplicate the palette |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1788 if (iff.camg & IFF_CAMG_HALFBRITE) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1789 { |
| 834 | 1790 void *ptmp; |
| 1791 | |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1792 if (iff.ncolors > 128) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1793 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1794 return dmError(DMERR_NOT_SUPPORTED, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1795 "ILBM: Halfbrite enabled, but ncolors > 128.\n"); |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1796 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1797 |
| 834 | 1798 if ((ptmp = dmRealloc(iff.pal, sizeof(DMColor) * iff.ncolors * 2)) == NULL) |
| 1799 { | |
| 1800 dmFree(iff.pal); | |
| 1801 iff.pal = NULL; | |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1802 return DMERR_MALLOC; |
| 834 | 1803 } |
| 1804 else | |
| 1805 iff.pal = ptmp; | |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
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958
diff
changeset
|
1806 |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1807 for (i = 0; i < iff.ncolors; i++) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1808 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1809 int i2 = iff.ncolors + i; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1810 iff.pal[i2].r = iff.pal[i].r / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1811 iff.pal[i2].g = iff.pal[i].g / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1812 iff.pal[i2].b = iff.pal[i].b / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1813 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1814 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1815 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1816 (*pimg)->ncolors = iff.ncolors; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1817 (*pimg)->pal = iff.pal; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1818 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1819 |
|
443
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1820 return res; |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1821 } |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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|
1822 |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1823 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1824 int dmReadILBMImage(const char *filename, DMImage **pimg) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1825 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1826 FILE *fp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1827 int res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1828 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1829 if ((fp = fopen(filename, "rb")) == NULL) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
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|
1830 { |
|
958
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1831 return dmError(DMERR_FOPEN, |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1832 "ILBM: Could not open file '%s' for reading.\n", |
|
985225a93aeb
Add error code parameter to dmError() and dmErrorVA().
Matti Hamalainen <ccr@tnsp.org>
parents:
930
diff
changeset
|
1833 filename); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1834 } |
|
1102
e06abfde6c39
Cosmetics pass: Remove excess whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
958
diff
changeset
|
1835 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1836 res = dmReadILBMImageFILE(fp, pimg); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1837 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1838 fclose(fp); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1839 return res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1840 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1841 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1842 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1843 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1844 |
| 435 | 1845 static int fmtProbePNG(const Uint8 *buf, const size_t len) |
| 1846 { | |
| 1847 if (len > 64 && buf[0] == 0x89 && | |
| 1848 buf[1] == 'P' && buf[2] == 'N' && buf[3] == 'G' && | |
| 1849 buf[4] == 0x0d && buf[5] == 0x0a) | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1850 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1851 if (buf[12] == 'I' && buf[13] == 'H' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1852 buf[14] == 'D' && buf[15] == 'R') |
|
f7c9d1619c74
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diff
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|
1853 return DM_PROBE_SCORE_MAX; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1854 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1855 return DM_PROBE_SCORE_GOOD; |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1856 } |
| 435 | 1857 |
| 1858 return DM_PROBE_SCORE_FALSE; | |
| 1859 } | |
| 1860 | |
| 1861 | |
| 1862 static int fmtProbePCX(const Uint8 *buf, const size_t len) | |
| 1863 { | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1864 if (len > 128 + 32 && |
| 1288 | 1865 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1866 (buf[1] == 5 || buf[1] == 2 || buf[1] == 3) && |
| 435 | 1867 buf[2] == 1 && |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1868 (buf[3] == 8 || buf[3] == 4 || buf[3] == 3 || buf[3] == 1) && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1869 buf[65] >= 1 && buf[65] <= 4) |
| 435 | 1870 return DM_PROBE_SCORE_GOOD; |
| 1871 | |
| 1872 return DM_PROBE_SCORE_FALSE; | |
| 1873 } | |
| 1874 | |
| 1875 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1876 static int fmtProbeILBM(const Uint8 *buf, const size_t len) |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1877 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1878 if (len > 32 && |
|
f7c9d1619c74
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442
diff
changeset
|
1879 buf[ 0] == 'F' && buf[ 1] == 'O' && |
| 464 | 1880 buf[ 2] == 'R' && buf[ 3] == 'M' && ( |
| 1881 (buf[ 8] == 'I' && buf[ 9] == 'L' && buf[10] == 'B' && buf[11] == 'M') || | |
| 1882 (buf[ 8] == 'P' && buf[ 9] == 'B' && buf[10] == 'M' && buf[11] == 0x20) | |
| 1883 )) | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1884 { |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1885 if (buf[12] == 'B' && buf[13] == 'M' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
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442
diff
changeset
|
1886 buf[14] == 'H' && buf[15] == 'D') |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
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442
diff
changeset
|
1887 return DM_PROBE_SCORE_MAX; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1888 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1889 return DM_PROBE_SCORE_GOOD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1890 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1891 |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1892 return DM_PROBE_SCORE_FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1893 } |
|
f7c9d1619c74
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parents:
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diff
changeset
|
1894 |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1895 |
| 435 | 1896 DMImageFormat dmImageFormatList[IMGFMT_LAST] = |
| 1897 { | |
| 1898 { | |
| 1899 "PNG", "Portable Network Graphics", | |
| 1900 fmtProbePNG, | |
| 1901 #ifdef DM_USE_LIBPNG | |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
1902 dmReadPNGImage, dmReadPNGImageFILE, |
| 435 | 1903 dmWritePNGImage, dmWritePNGImageFILE, |
| 1904 #else | |
| 1905 NULL, NULL, | |
|
453
349a2ff11531
Implement PNG (1-8bpp indexed) reading support via libPNG.
Matti Hamalainen <ccr@tnsp.org>
parents:
452
diff
changeset
|
1906 NULL, NULL, |
| 435 | 1907 #endif |
| 1908 }, | |
| 1909 { | |
| 1910 "PPM", "Portable PixMap", | |
| 1911 NULL, | |
| 1912 NULL, NULL, | |
| 1913 dmWritePPMImage, dmWritePPMImageFILE, | |
| 1914 }, | |
| 1915 { | |
| 1916 "PCX", "Z-Soft Paintbrush", | |
| 1917 fmtProbePCX, | |
| 1918 dmReadPCXImage, dmReadPCXImageFILE, | |
| 1919 dmWritePCXImage, dmWritePCXImageFILE, | |
| 1920 }, | |
| 1921 { | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1922 "ILBM", "IFF ILBM", |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1923 fmtProbeILBM, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1924 dmReadILBMImage, dmReadILBMImageFILE, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1925 NULL, NULL, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1926 }, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1927 { |
| 1291 | 1928 "RAW", "Plain bitplaned (planar or non-planar) RAW", |
|
566
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1929 NULL, |
|
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1930 NULL, NULL, |
|
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1931 dmWriteRAWImage, dmWriteRAWImageFILE, |
|
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1932 }, |
|
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1933 { |
| 435 | 1934 "ARAW", "IFFMaster Amiga RAW", |
| 1935 NULL, | |
| 1936 NULL, NULL, | |
|
566
d400e32b62d9
Add a slightly different raw output format.
Matti Hamalainen <ccr@tnsp.org>
parents:
487
diff
changeset
|
1937 dmWriteRAWImage, dmWriteRAWImageFILE, |
| 435 | 1938 } |
| 1939 }; | |
| 1940 | |
| 1941 | |
| 1942 int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **pfmt, int *index) | |
| 1943 { | |
| 1944 int i, scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1; | |
| 1945 | |
| 1946 for (i = 0; i < IMGFMT_LAST; i++) | |
| 1947 { | |
| 1948 DMImageFormat *fmt = &dmImageFormatList[i]; | |
|
442
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1949 if (fmt->probe != NULL) |
| 435 | 1950 { |
|
442
a67600e186d0
Fix probing to handle NULL probe functions.
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440
diff
changeset
|
1951 int score = fmt->probe(buf, len); |
|
a67600e186d0
Fix probing to handle NULL probe functions.
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440
diff
changeset
|
1952 if (score > scoreMax) |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1953 { |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1954 scoreMax = score; |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1955 scoreIndex = i; |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1956 } |
| 435 | 1957 } |
| 1958 } | |
| 1959 | |
| 1960 if (scoreIndex >= 0) | |
| 1961 { | |
| 1962 *pfmt = &dmImageFormatList[scoreIndex]; | |
| 1963 *index = scoreIndex; | |
| 1964 return scoreMax; | |
| 1965 } | |
| 1966 else | |
| 1967 return DM_PROBE_SCORE_FALSE; | |
| 1968 } |