Mercurial > hg > dmlib
annotate dmlib.h @ 294:dd9809a93425
Improve mutex debugging facilities.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Thu, 11 Oct 2012 16:04:02 +0300 |
| parents | e2f286781180 |
| children | 036fde2fd630 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * DMLib | |
| 3 * -- Main header file | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 5 * (C) Copyright 2011 Tecnic Software productions (TNSP) | |
| 6 */ | |
| 7 #ifndef DMLIB_H | |
| 8 #define DMLIB_H | |
| 9 | |
|
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10 #include <SDL_config.h> |
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11 #include <SDL_endian.h> |
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12 #include <SDL_types.h> |
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13 #include <SDL_mutex.h> |
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14 #include <SDL_video.h> |
| 0 | 15 #include <stdarg.h> |
| 16 | |
| 17 #ifdef DM_USE_ASSERTS | |
| 18 #include <assert.h> | |
| 19 #else | |
| 20 #define assert(NEXPR) // stub | |
| 21 #endif | |
| 22 | |
| 23 #ifdef __cplusplus | |
| 24 extern "C" { | |
| 25 #endif | |
| 26 | |
| 27 // Defaults | |
| 28 //#define DM_PROG_AUTHOR "By Matti 'ccr' Hmlinen (C) Copyright 2012 TNSP" | |
| 29 //#define DM_PROG_LICENSE "This software is licensed under GNU GPL version 2" | |
| 30 | |
| 31 #define DM_PROG_AUTHOR "" | |
| 32 #define DM_PROG_LICENSE "" | |
| 33 | |
| 34 /* Error codes | |
| 35 */ | |
| 36 enum { | |
| 37 // General error codes | |
| 38 DMERR_OK = 0, | |
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39 DMERR_PROGRESS, // Status OK, but operation in progress |
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40 |
| 0 | 41 DMERR_FOPEN, |
| 42 DMERR_FREAD, | |
| 43 DMERR_FWRITE, | |
| 44 DMERR_FSEEK, | |
|
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45 DMERR_NOT_FOUND, // Resource/data not found |
| 0 | 46 |
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47 DMERR_INVALID_DATA, // Some data was invalid |
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48 DMERR_MALLOC, // Memory allocation failure |
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49 DMERR_ALREADY_INIT, // Resource has already been initialized |
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50 DMERR_INIT_FAIL, // General initialization failure |
| 0 | 51 DMERR_INVALID_ARGS, |
| 52 | |
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53 DMERR_NULLPTR, // NULL pointer specified in critical argument |
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54 DMERR_NOT_SUPPORTED,// Operation not supported |
| 0 | 55 DMERR_OUT_OF_DATA, |
| 56 DMERR_EXTRA_DATA, | |
| 57 DMERR_BOUNDS, | |
| 58 | |
| 59 // PACK-file subsystem | |
| 60 DMERR_NOTPACK, | |
| 61 DMERR_VERSION, | |
| 62 DMERR_INVALID, | |
| 63 DMERR_COMPRESSION, | |
| 64 }; | |
| 65 | |
| 66 | |
| 67 // Resource management defines | |
| 68 #define DMRES_NAME_LEN 32 | |
| 69 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
| 70 #define DMRES_DATA_PATH "DATA/" // Sub-directory path | |
| 71 #define DMRES_RES_FILE "res.txt" // Resource data file | |
| 72 | |
| 73 | |
| 74 /* Define a boolean type | |
| 75 */ | |
| 76 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
| 77 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
| 78 #endif | |
| 79 | |
| 80 #ifndef BOOL | |
| 81 #ifdef bool | |
| 82 #define BOOL bool | |
| 83 #else | |
| 84 #define BOOL int | |
| 85 #endif | |
| 86 #endif | |
| 87 | |
| 88 | |
| 89 /* Fixed point math type | |
| 90 */ | |
| 91 typedef union | |
| 92 { | |
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93 Sint64 dw; |
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94 Sint32 w[2]; |
| 0 | 95 } DMFixedPoint; |
| 96 | |
| 97 | |
| 98 typedef union | |
| 99 { | |
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100 Sint32 dw; |
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101 Sint16 w[2]; |
| 0 | 102 } DMFixedPoint32; |
| 103 | |
| 104 | |
| 105 /* Macros for fixed point math | |
| 106 */ | |
| 107 #if __GNUC__ >= 3 | |
| 108 # define FP_SET(a, k) a.dw = k ## ULL | |
| 109 #else | |
| 110 # define FP_SET(a, k) a.dw = k | |
| 111 #endif | |
| 112 | |
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113 #define FP_CONV(a, k) a.dw = (k) |
| 0 | 114 |
| 115 #ifndef SDL_BYTEORDER | |
| 116 # error Undefined byteorder! | |
| 117 #endif | |
| 118 | |
| 119 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 120 # define FP_SETH(a, k) a.w[0] = (k) | |
| 121 # define FP_SETL(a, k) a.w[1] = (k) | |
| 122 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
| 123 # define FP_GETH(a) a.w[0] | |
| 124 # define FP_GETL(a) a.w[1] | |
| 125 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
| 126 # define FP_SETH(a, k) a.w[1] = (k) | |
| 127 # define FP_SETL(a, k) a.w[0] = (k) | |
| 128 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
| 129 # define FP_GETH(a) a.w[1] | |
| 130 # define FP_GETL(a) a.w[0] | |
| 131 #else | |
| 132 # error Unsupported byte order! | |
| 133 #endif | |
| 134 | |
| 135 #define FP_PRINTF(a) printf("%.8x:%.8x", FP_GETH(a), FP_GETL(a)) | |
| 136 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH(a), FP_GETL(a)) | |
| 137 | |
| 138 #define FP_ADD(a, b) a.dw += b.dw | |
| 139 #define FP_SUB(a, b) a.dw -= b.dw | |
| 140 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
| 141 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
| 142 #define FP_DIV(a, b) a.dw /= b.dw | |
| 143 #define FP_MUL(a, b) a.dw *= b.dw | |
| 144 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
| 145 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
| 146 | |
| 147 | |
| 148 /* Miscellaneous types | |
| 149 */ | |
| 150 typedef struct | |
| 151 { | |
| 152 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 153 Uint8 a,g,b,r; | |
| 154 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
| 155 Uint8 r,g,b,a; | |
| 156 #endif | |
| 157 } DMRGBA32; | |
| 158 | |
| 159 | |
| 160 typedef float DMFloat; | |
| 161 | |
| 162 | |
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163 // Macro for swapping two lvalues of same type |
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164 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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165 |
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166 |
| 0 | 167 /* Drawing modes used by blitting and some other functions. |
| 168 */ | |
| 169 enum | |
| 170 { | |
| 171 DMD_NONE = 0x0000, | |
| 172 DMD_TRANSPARENT = 0x0001, | |
| 173 DMD_SATURATE = 0x0002, | |
| 174 | |
| 175 DMD_ANTIALIAS = 0x0004, | |
| 176 | |
| 177 DMD_NMODES = 6 | |
| 178 }; | |
| 179 | |
| 180 | |
| 181 // Available bitdepths. Not all functions may support every one of these. | |
| 182 enum | |
| 183 { | |
| 184 DMD_8BIT = 0, | |
| 185 DMD_32BIT, | |
| 186 | |
| 187 DMD_NBITDEPTHS | |
| 188 }; | |
| 189 | |
| 190 | |
| 191 static inline int dmBitsPerPixel2Index(int bpp) | |
| 192 { | |
| 193 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
| 194 } | |
| 195 | |
| 196 | |
| 197 /* Generic parameter interpolation | |
| 198 */ | |
| 199 #define DMM_S_CURVE(t) ((t) * (t) * (3.0f - 2.0f * (t))) | |
| 200 #define DMM_LERP(t, a, b) ((a) + (t) * ((b) - (a))) | |
| 201 | |
| 202 typedef struct | |
| 203 { | |
| 204 DMFloat start, end, nsteps; | |
| 205 } DMLerpContext; | |
| 206 | |
| 207 | |
| 208 void dmLerpInit(DMLerpContext *ctx, DMFloat start, DMFloat end, DMFloat nsteps); | |
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209 DMFloat dmCatmullRom(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3); |
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210 |
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211 |
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212 static inline DMFloat dmClamp10(const DMFloat a) |
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213 { |
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214 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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215 } |
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216 |
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217 |
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218 static inline int dmClamp(const int v, const int min, const int max) |
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219 { |
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220 return (v < min ? min : (v > max ? max : v)); |
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221 } |
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222 |
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223 |
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224 static inline DMFloat dmLerpSCurve(DMLerpContext *ctx, const DMFloat step) |
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225 { |
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226 const DMFloat n = step / ctx->nsteps; |
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227 const DMFloat v = DMM_S_CURVE(n); |
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228 return DMM_LERP(v, ctx->start, ctx->end); |
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229 } |
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230 |
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231 |
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232 static inline DMFloat dmLerpSCurveClamp(DMLerpContext *ctx, const DMFloat step) |
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233 { |
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234 const DMFloat n = dmClamp10(step / ctx->nsteps); |
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235 const DMFloat v = DMM_S_CURVE(n); |
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236 return DMM_LERP(v, ctx->start, ctx->end); |
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237 } |
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238 |
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239 |
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240 static inline DMFloat dmLerp1(DMLerpContext *ctx, const DMFloat step) |
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241 { |
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242 const DMFloat v = step / ctx->nsteps; |
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243 return DMM_LERP(v, ctx->start, ctx->end); |
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244 } |
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245 |
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246 |
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247 static inline DMFloat dmLerp1Clamp(DMLerpContext *ctx, const DMFloat step) |
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248 { |
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249 const DMFloat v = dmClamp10(step / ctx->nsteps); |
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250 return DMM_LERP(v, ctx->start, ctx->end); |
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251 } |
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252 |
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253 |
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254 static inline DMFloat dmCatmullRomClamp(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3) |
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255 { |
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256 return dmCatmullRom(dmClamp10(t), p0, p1, p2, p3); |
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257 } |
| 0 | 258 |
| 259 | |
| 260 /* Perlin noise | |
| 261 */ | |
| 262 void dmPerlinInit(void); | |
| 263 DMFloat dmPerlinNoise2D(DMFloat x, DMFloat y, DMFloat alpha, DMFloat beta, int n); | |
| 264 | |
| 265 | |
| 266 /* Arbitrary line drawing | |
| 267 */ | |
| 268 #ifdef DM_GFX_LINES | |
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269 #define DM_HEADER |
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270 #include "dmlinefunc.h" |
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271 |
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272 enum |
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273 { |
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274 CLIP_TOP = 1, |
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275 CLIP_BOTTOM = 2, |
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276 CLIP_RIGHT = 4, |
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277 CLIP_LEFT = 8 |
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278 }; |
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279 |
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280 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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281 #define DM_COORD_TYPE DMFloat |
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282 #include "dmlineclip.h" |
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283 |
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284 #undef DM_HEADER |
| 0 | 285 #endif |
| 286 | |
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287 |
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288 /* Various blitting functions |
| 0 | 289 */ |
| 290 #ifdef DM_GFX_BLITS | |
| 291 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
| 292 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
| 293 int dmScaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst, int mode); | |
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294 |
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295 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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296 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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297 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
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298 |
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299 #define DM_HEADER |
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300 #include "dmblitfunc.h" |
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301 #undef DM_HEADER |
| 0 | 302 #endif |
| 303 | |
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304 |
| 0 | 305 /* Misc functions |
| 306 */ | |
| 307 #ifdef DM_GFX_MISC | |
| 308 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); | |
| 309 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
| 310 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
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311 |
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312 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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313 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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314 |
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315 |
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316 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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317 { |
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318 SDL_FillRect(screen, NULL, col); |
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319 } |
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320 |
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321 |
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322 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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323 { |
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324 return SDL_MapRGB(screen->format, r, g, b); |
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325 } |
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326 |
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327 |
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328 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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329 { |
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330 return SDL_MapRGBA(screen->format, r, g, b, a); |
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331 } |
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332 |
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333 |
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334 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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335 { |
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336 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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337 } |
| 0 | 338 #endif |
| 339 | |
| 340 | |
| 341 /* Global variables | |
| 342 */ | |
| 343 extern char *dmProgName, | |
| 344 *dmProgDesc, | |
| 345 *dmProgVersion, | |
| 346 *dmProgAuthor, | |
| 347 *dmProgLicense; | |
| 348 | |
| 349 extern int dmVerbosity; | |
| 350 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
| 351 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
| 352 | |
| 353 void dmMsgVA(int level, const char *fmt, va_list ap); | |
| 354 void dmMsg(int level, const char *fmt, ...); | |
| 355 void dmPrintVA(int level, const char *fmt, va_list ap); | |
| 356 void dmPrint(int level, const char *fmt, ...); | |
| 357 void dmErrorVA(const char *fmt, va_list); | |
| 358 void dmError(const char *fmt, ...); | |
| 359 | |
| 360 void * dmMalloc(size_t); | |
| 361 void * dmMalloc0(size_t); | |
| 362 void * dmRealloc(void *, size_t); | |
| 363 void * dmCalloc(size_t, size_t); | |
| 364 void dmFree(void *); | |
| 365 | |
| 366 BOOL dmGetIntVal(const char *s, int *i); | |
| 367 | |
| 368 int dmGetErrno(); | |
| 369 const char *dmErrorStr(int error); | |
| 370 | |
| 371 char * dm_strdup(const char *); | |
| 372 char * dm_strdup_vprintf(const char *, va_list); | |
| 373 char * dm_strdup_printf(const char *, ...); | |
| 374 | |
| 375 | |
|
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376 /* Mutexes |
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377 */ |
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378 #ifdef DM_MUTEX_DEBUG |
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379 |
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380 typedef struct |
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381 { |
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382 BOOL used; |
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383 Uint32 id; |
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384 int state; |
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385 } DMMutexLock; |
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386 |
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387 typedef struct |
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388 { |
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389 char *cr_file; |
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390 int cr_line; |
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391 SDL_mutex *m; |
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392 DMMutexLock locks[8]; |
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393 } DMMutex; |
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394 |
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395 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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396 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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397 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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398 |
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399 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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400 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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401 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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402 void dmDestroyMutex(DMMutex *mutex); |
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403 |
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404 #else |
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405 #define DMMutex SDL_mutex |
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406 #define dmCreateMutex() SDL_CreateMutex() |
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407 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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408 #define dmMutexLock(x) SDL_mutexP(x) |
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409 #define dmMutexUnlock(x) SDL_mutexV(x) |
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410 #endif |
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411 |
| 0 | 412 /* Endianess swapping macros |
| 413 */ | |
| 414 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ | |
| 415 (Uint16) ((Uint16) (value) >> 8) | \ | |
| 416 (Uint16) ((Uint16) (value) << 8)) ) | |
| 417 | |
| 418 | |
| 419 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ | |
| 420 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ | |
| 421 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
| 422 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
| 423 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
| 424 | |
| 425 #ifdef DM_HAVE_64BIT | |
| 426 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ | |
| 427 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
| 428 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
| 429 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
| 430 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
| 431 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
| 432 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
| 433 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
| 434 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) | |
| 435 #endif | |
| 436 | |
| 437 /* Macros that swap only when needed ... | |
| 438 */ | |
| 439 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 440 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) | |
| 441 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
| 442 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
| 443 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
| 444 | |
| 445 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) | |
| 446 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
| 447 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
| 448 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
| 449 | |
| 450 # ifdef DM_HAVE_64BIT | |
| 451 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
| 452 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) | |
| 453 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) | |
| 454 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) | |
| 455 # endif | |
| 456 | |
| 457 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
| 458 | |
| 459 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) | |
| 460 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
| 461 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
| 462 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
| 463 | |
| 464 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) | |
| 465 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
| 466 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
| 467 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
| 468 | |
| 469 # ifdef DM_HAVE_64BIT | |
| 470 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) | |
| 471 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) | |
| 472 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
| 473 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) | |
| 474 # endif | |
| 475 #endif | |
| 476 | |
| 477 | |
| 478 #ifdef __cplusplus | |
| 479 } | |
| 480 #endif | |
| 481 #endif // DMLIB_H |