Mercurial > hg > dmlib
annotate dmlib.h @ 781:e15e0469499a
Add initial code for simulating audio playback while in no-sound situation.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 30 Jul 2013 15:29:19 +0300 |
parents | a8bd679934c7 |
children | fc26ec1d315f |
rev | line source |
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0 | 1 /* |
2 * DMLib | |
3 * -- Main header file | |
4 * Programmed and designed by Matti 'ccr' Hamalainen | |
569 | 5 * (C) Copyright 2011-2013 Tecnic Software productions (TNSP) |
0 | 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_thread.h> |
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15 #include <SDL_video.h> |
0 | 16 #include <stdarg.h> |
17 | |
18 #ifdef DM_USE_ASSERTS | |
770 | 19 # include <assert.h> |
0 | 20 #else |
770 | 21 # define assert(NEXPR) // stub |
0 | 22 #endif |
23 | |
24 #ifdef __cplusplus | |
25 extern "C" { | |
26 #endif | |
27 | |
28 // Defaults | |
569 | 29 #define DM_PROG_AUTHOR "By Matti 'ccr' Hamalainen (C) Copyright 2013 TNSP" |
341 | 30 #define DM_PROG_LICENSE "Et all, see README / COPYING for more information." |
0 | 31 |
32 /* Error codes | |
33 */ | |
34 enum { | |
770 | 35 // General error codes |
36 DMERR_OK = 0, | |
37 DMERR_PROGRESS, // Status OK, but operation in progress | |
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38 |
770 | 39 DMERR_FOPEN, |
40 DMERR_FREAD, | |
41 DMERR_FWRITE, | |
42 DMERR_FSEEK, | |
43 DMERR_NOT_FOUND, // Resource/data not found | |
0 | 44 |
770 | 45 DMERR_INVALID_DATA, // Some data was invalid |
46 DMERR_MALLOC, // Memory allocation failure | |
47 DMERR_ALREADY_INIT, // Resource has already been initialized | |
48 DMERR_INIT_FAIL, // General initialization failure | |
49 DMERR_INVALID_ARGS, | |
0 | 50 |
770 | 51 DMERR_NULLPTR, // NULL pointer specified in critical argument |
52 DMERR_NOT_SUPPORTED,// Operation not supported | |
53 DMERR_OUT_OF_DATA, | |
54 DMERR_EXTRA_DATA, | |
55 DMERR_BOUNDS, | |
0 | 56 |
770 | 57 DMERR_INTERNAL, |
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58 |
770 | 59 // PACK-file subsystem |
60 DMERR_NOTPACK, | |
61 DMERR_VERSION, | |
62 DMERR_INVALID, | |
63 DMERR_COMPRESSION, | |
0 | 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 | |
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70 #define DMRES_DATA_PATH "data/" // Sub-directory path |
0 | 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 | |
770 | 81 # ifdef bool |
82 # define BOOL bool | |
83 # else | |
84 # define BOOL int | |
85 # endif | |
0 | 86 #endif |
87 | |
88 | |
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89 /* Math constants |
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90 */ |
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91 #define DM_PI 3.14159265358f |
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92 #define DM_PI2 6.28318530718f |
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93 #define DM_E 2.71828182846f |
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94 |
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95 |
0 | 96 /* Fixed point math type |
97 */ | |
98 typedef union | |
99 { | |
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100 Sint64 dw; |
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101 Sint32 w[2]; |
0 | 102 } DMFixedPoint; |
103 | |
104 | |
105 typedef union | |
106 { | |
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107 Sint32 dw; |
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108 Sint16 w[2]; |
0 | 109 } DMFixedPoint32; |
110 | |
111 | |
112 /* Macros for fixed point math | |
113 */ | |
114 #if __GNUC__ >= 3 | |
115 # define FP_SET(a, k) a.dw = k ## ULL | |
116 #else | |
117 # define FP_SET(a, k) a.dw = k | |
118 #endif | |
119 | |
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120 #define FP_CONV(a, k) a.dw = (k) |
0 | 121 |
122 #ifndef SDL_BYTEORDER | |
123 # error Undefined byteorder! | |
124 #endif | |
125 | |
126 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
127 # define FP_SETH(a, k) a.w[0] = (k) | |
128 # define FP_SETL(a, k) a.w[1] = (k) | |
129 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
130 # define FP_GETH(a) a.w[0] | |
131 # define FP_GETL(a) a.w[1] | |
132 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
133 # define FP_SETH(a, k) a.w[1] = (k) | |
134 # define FP_SETL(a, k) a.w[0] = (k) | |
135 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
136 # define FP_GETH(a) a.w[1] | |
137 # define FP_GETL(a) a.w[0] | |
138 #else | |
139 # error Unsupported byte order! | |
140 #endif | |
141 | |
142 #define FP_PRINTF(a) printf("%.8x:%.8x", FP_GETH(a), FP_GETL(a)) | |
143 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH(a), FP_GETL(a)) | |
144 | |
145 #define FP_ADD(a, b) a.dw += b.dw | |
146 #define FP_SUB(a, b) a.dw -= b.dw | |
147 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
148 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
149 #define FP_DIV(a, b) a.dw /= b.dw | |
150 #define FP_MUL(a, b) a.dw *= b.dw | |
151 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
152 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
153 | |
154 | |
155 /* Miscellaneous types | |
156 */ | |
157 typedef struct | |
158 { | |
159 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
160 Uint8 a,g,b,r; | |
161 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
162 Uint8 r,g,b,a; | |
163 #endif | |
164 } DMRGBA32; | |
165 | |
166 | |
167 typedef float DMFloat; | |
168 | |
169 | |
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170 // Macro for swapping two lvalues of same type |
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171 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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172 |
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173 |
0 | 174 /* Drawing modes used by blitting and some other functions. |
175 */ | |
176 enum | |
177 { | |
178 DMD_NONE = 0x0000, | |
179 DMD_TRANSPARENT = 0x0001, | |
180 DMD_SATURATE = 0x0002, | |
181 | |
182 DMD_ANTIALIAS = 0x0004, | |
183 | |
184 DMD_NMODES = 6 | |
185 }; | |
186 | |
187 | |
188 // Available bitdepths. Not all functions may support every one of these. | |
189 enum | |
190 { | |
191 DMD_8BIT = 0, | |
192 DMD_32BIT, | |
193 | |
194 DMD_NBITDEPTHS | |
195 }; | |
196 | |
197 | |
198 static inline int dmBitsPerPixel2Index(int bpp) | |
199 { | |
200 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
201 } | |
202 | |
203 | |
204 /* Generic parameter interpolation | |
205 */ | |
206 #define DMM_S_CURVE(t) ((t) * (t) * (3.0f - 2.0f * (t))) | |
207 #define DMM_LERP(t, a, b) ((a) + (t) * ((b) - (a))) | |
208 | |
209 typedef struct | |
210 { | |
211 DMFloat start, end, nsteps; | |
212 } DMLerpContext; | |
213 | |
214 | |
215 void dmLerpInit(DMLerpContext *ctx, DMFloat start, DMFloat end, DMFloat nsteps); | |
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216 DMFloat dmCatmullRom(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3); |
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217 |
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218 |
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219 static inline DMFloat dmClamp10(const DMFloat a) |
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220 { |
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221 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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222 } |
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223 |
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224 |
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225 static inline int dmClamp(const int v, const int min, const int max) |
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226 { |
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227 return (v < min ? min : (v > max ? max : v)); |
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228 } |
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229 |
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230 |
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231 static inline DMFloat dmLerpSCurve(DMLerpContext *ctx, const DMFloat step) |
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232 { |
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233 const DMFloat n = step / ctx->nsteps; |
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234 const DMFloat v = DMM_S_CURVE(n); |
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235 return DMM_LERP(v, ctx->start, ctx->end); |
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236 } |
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237 |
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238 |
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239 static inline DMFloat dmLerpSCurveClamp(DMLerpContext *ctx, const DMFloat step) |
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240 { |
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241 const DMFloat n = dmClamp10(step / ctx->nsteps); |
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242 const DMFloat v = DMM_S_CURVE(n); |
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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 dmLerp1(DMLerpContext *ctx, const DMFloat step) |
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248 { |
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249 const DMFloat v = 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 dmLerp1Clamp(DMLerpContext *ctx, const DMFloat step) |
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255 { |
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256 const DMFloat v = dmClamp10(step / ctx->nsteps); |
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257 return DMM_LERP(v, ctx->start, ctx->end); |
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258 } |
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259 |
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260 |
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261 static inline DMFloat dmCatmullRomClamp(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3) |
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262 { |
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263 return dmCatmullRom(dmClamp10(t), p0, p1, p2, p3); |
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264 } |
0 | 265 |
266 | |
267 /* Perlin noise | |
268 */ | |
269 void dmPerlinInit(void); | |
270 DMFloat dmPerlinNoise2D(DMFloat x, DMFloat y, DMFloat alpha, DMFloat beta, int n); | |
271 | |
272 | |
273 /* Arbitrary line drawing | |
274 */ | |
275 #ifdef DM_GFX_LINES | |
232
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276 #define DM_HEADER |
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277 #include "dmlinefunc.h" |
234
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278 |
262
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279 enum |
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280 { |
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281 CLIP_TOP = 1, |
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282 CLIP_BOTTOM = 2, |
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283 CLIP_RIGHT = 4, |
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284 CLIP_LEFT = 8 |
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285 }; |
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286 |
234
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287 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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288 #define DM_COORD_TYPE DMFloat |
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289 #include "dmlineclip.h" |
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290 |
232
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291 #undef DM_HEADER |
0 | 292 #endif |
293 | |
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294 |
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295 /* Various blitting functions |
0 | 296 */ |
297 #ifdef DM_GFX_BLITS | |
298 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
299 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
300 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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301 |
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302 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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303 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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304 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
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305 |
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306 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags, const int dwidth, const int dheight); |
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307 |
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308 |
232
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309 #define DM_HEADER |
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310 #include "dmblitfunc.h" |
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311 #undef DM_HEADER |
612
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312 |
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313 #endif // DM_GFX_BLITS |
0 | 314 |
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315 |
0 | 316 /* Misc functions |
317 */ | |
318 #ifdef DM_GFX_MISC | |
612
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319 |
0 | 320 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); |
321 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
322 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
150
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323 |
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324 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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325 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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326 |
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327 #endif // DM_GFX_MISC |
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328 |
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329 |
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330 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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331 { |
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332 SDL_FillRect(screen, NULL, col); |
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333 } |
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334 |
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335 |
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336 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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337 { |
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338 return SDL_MapRGB(screen->format, r, g, b); |
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339 } |
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340 |
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341 |
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342 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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343 { |
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344 return SDL_MapRGBA(screen->format, r, g, b, a); |
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345 } |
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346 |
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347 |
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348 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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349 { |
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350 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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351 } |
0 | 352 |
353 | |
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354 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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355 { |
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356 if (src != NULL) |
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357 return SDL_ConvertSurface(src, src->format, src->flags); |
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358 else |
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359 return NULL; |
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360 } |
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361 |
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362 |
0 | 363 /* Global variables |
364 */ | |
365 extern char *dmProgName, | |
366 *dmProgDesc, | |
367 *dmProgVersion, | |
368 *dmProgAuthor, | |
369 *dmProgLicense; | |
370 | |
371 extern int dmVerbosity; | |
372 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
373 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
374 | |
375 void dmMsgVA(int level, const char *fmt, va_list ap); | |
376 void dmMsg(int level, const char *fmt, ...); | |
377 void dmPrintVA(int level, const char *fmt, va_list ap); | |
378 void dmPrint(int level, const char *fmt, ...); | |
379 void dmErrorVA(const char *fmt, va_list); | |
380 void dmError(const char *fmt, ...); | |
381 | |
382 void * dmMalloc(size_t); | |
383 void * dmMalloc0(size_t); | |
384 void * dmRealloc(void *, size_t); | |
385 void * dmCalloc(size_t, size_t); | |
386 void dmFree(void *); | |
387 | |
388 BOOL dmGetIntVal(const char *s, int *i); | |
389 | |
390 int dmGetErrno(); | |
391 const char *dmErrorStr(int error); | |
392 | |
393 char * dm_strdup(const char *); | |
744
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394 char * dm_strndup(const char *, const size_t n); |
0 | 395 char * dm_strdup_vprintf(const char *, va_list); |
396 char * dm_strdup_printf(const char *, ...); | |
397 | |
398 | |
294
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399 /* Mutexes |
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400 */ |
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401 #ifdef DM_MUTEX_DEBUG |
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402 |
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403 typedef struct |
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404 { |
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405 BOOL used; |
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406 Uint32 id; |
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407 int state; |
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408 } DMMutexLock; |
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409 |
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410 typedef struct |
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411 { |
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412 char *cr_file; |
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413 int cr_line; |
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414 SDL_mutex *m; |
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415 DMMutexLock locks[8]; |
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416 } DMMutex; |
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417 |
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418 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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419 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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420 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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421 |
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422 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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423 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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424 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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425 void dmDestroyMutex(DMMutex *mutex); |
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426 |
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427 #else |
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428 #define DMMutex SDL_mutex |
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429 #define dmCreateMutex() SDL_CreateMutex() |
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430 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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431 #define dmMutexLock(x) SDL_mutexP(x) |
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432 #define dmMutexUnlock(x) SDL_mutexV(x) |
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433 #endif |
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434 |
0 | 435 /* Endianess swapping macros |
436 */ | |
437 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ | |
438 (Uint16) ((Uint16) (value) >> 8) | \ | |
439 (Uint16) ((Uint16) (value) << 8)) ) | |
440 | |
441 | |
442 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ | |
443 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ | |
444 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
445 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
446 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
447 | |
448 #ifdef DM_HAVE_64BIT | |
449 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ | |
450 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
451 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
452 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
453 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
454 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
455 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
456 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
457 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) | |
458 #endif | |
459 | |
460 /* Macros that swap only when needed ... | |
461 */ | |
462 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
770 | 463 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
464 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
465 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
466 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 467 |
770 | 468 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
469 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
470 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
471 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
0 | 472 |
770 | 473 # ifdef DM_HAVE_64BIT |
474 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
475 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) | |
476 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) | |
477 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) | |
478 # endif | |
0 | 479 |
480 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
481 | |
770 | 482 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
483 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
484 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
485 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
0 | 486 |
770 | 487 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
488 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
489 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
490 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 491 |
770 | 492 # ifdef DM_HAVE_64BIT |
493 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) | |
494 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) | |
495 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
496 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) | |
497 # endif | |
0 | 498 #endif |
499 | |
500 | |
501 #ifdef __cplusplus | |
502 } | |
503 #endif | |
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
341
diff
changeset
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504 |
0 | 505 #endif // DMLIB_H |