eglconfig.c revision d548bf41d3a0fe443494f94f745d1fe49e5e432c
1/** 2 * EGL Configuration (pixel format) functions. 3 */ 4 5 6#include <stdlib.h> 7#include <stdio.h> 8#include <string.h> 9#include <assert.h> 10#include "eglconfig.h" 11#include "egldisplay.h" 12#include "egldriver.h" 13#include "eglglobals.h" 14#include "egllog.h" 15 16 17#define MIN2(A, B) (((A) < (B)) ? (A) : (B)) 18 19 20/** 21 * Convert an _EGLConfig to a __GLcontextModes object. 22 * NOTE: This routine may be incomplete - we're only making sure that 23 * the fields needed by Mesa (for _mesa_create_context/framebuffer) are 24 * set correctly. 25 */ 26void 27_eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode) 28{ 29 memset(mode, 0, sizeof(*mode)); 30 31 mode->rgbMode = GL_TRUE; /* no color index */ 32 mode->colorIndexMode = GL_FALSE; 33 mode->doubleBufferMode = GL_TRUE; /* always DB for now */ 34 mode->stereoMode = GL_FALSE; 35 36 mode->redBits = GET_CONFIG_ATTRIB(config, EGL_RED_SIZE); 37 mode->greenBits = GET_CONFIG_ATTRIB(config, EGL_GREEN_SIZE); 38 mode->blueBits = GET_CONFIG_ATTRIB(config, EGL_BLUE_SIZE); 39 mode->alphaBits = GET_CONFIG_ATTRIB(config, EGL_ALPHA_SIZE); 40 mode->rgbBits = GET_CONFIG_ATTRIB(config, EGL_BUFFER_SIZE); 41 42 /* no rgba masks - fix? */ 43 44 mode->depthBits = GET_CONFIG_ATTRIB(config, EGL_DEPTH_SIZE); 45 mode->haveDepthBuffer = mode->depthBits > 0; 46 47 mode->stencilBits = GET_CONFIG_ATTRIB(config, EGL_STENCIL_SIZE); 48 mode->haveStencilBuffer = mode->stencilBits > 0; 49 50 /* no accum */ 51 52 mode->level = GET_CONFIG_ATTRIB(config, EGL_LEVEL); 53 mode->samples = GET_CONFIG_ATTRIB(config, EGL_SAMPLES); 54 mode->sampleBuffers = GET_CONFIG_ATTRIB(config, EGL_SAMPLE_BUFFERS); 55 56 /* surface type - not really needed */ 57 mode->visualType = GLX_TRUE_COLOR; 58 mode->renderType = GLX_RGBA_BIT; 59} 60 61 62void 63_eglSetConfigAttrib(_EGLConfig *config, EGLint attr, EGLint val) 64{ 65 assert(attr >= FIRST_ATTRIB); 66 assert(attr < FIRST_ATTRIB + MAX_ATTRIBS); 67 config->Attrib[attr - FIRST_ATTRIB] = val; 68} 69 70 71/** 72 * Init the given _EGLconfig to default values. 73 * \param id the configuration's ID. 74 */ 75void 76_eglInitConfig(_EGLConfig *config, EGLint id) 77{ 78 memset(config, 0, sizeof(*config)); 79 config->Handle = id; 80 _eglSetConfigAttrib(config, EGL_CONFIG_ID, id); 81 _eglSetConfigAttrib(config, EGL_BIND_TO_TEXTURE_RGB, EGL_DONT_CARE); 82 _eglSetConfigAttrib(config, EGL_BIND_TO_TEXTURE_RGBA, EGL_DONT_CARE); 83 _eglSetConfigAttrib(config, EGL_CONFIG_CAVEAT, EGL_DONT_CARE); 84 _eglSetConfigAttrib(config, EGL_NATIVE_RENDERABLE, EGL_DONT_CARE); 85 _eglSetConfigAttrib(config, EGL_NATIVE_VISUAL_TYPE, EGL_DONT_CARE); 86 _eglSetConfigAttrib(config, EGL_MIN_SWAP_INTERVAL, EGL_DONT_CARE); 87 _eglSetConfigAttrib(config, EGL_MAX_SWAP_INTERVAL, EGL_DONT_CARE); 88 _eglSetConfigAttrib(config, EGL_SURFACE_TYPE, 89 EGL_SCREEN_BIT_MESA | EGL_PBUFFER_BIT | 90 EGL_PIXMAP_BIT | EGL_WINDOW_BIT); 91 _eglSetConfigAttrib(config, EGL_TRANSPARENT_TYPE, EGL_NONE); 92 _eglSetConfigAttrib(config, EGL_TRANSPARENT_RED_VALUE, EGL_DONT_CARE); 93 _eglSetConfigAttrib(config, EGL_TRANSPARENT_GREEN_VALUE, EGL_DONT_CARE); 94 _eglSetConfigAttrib(config, EGL_TRANSPARENT_BLUE_VALUE, EGL_DONT_CARE); 95} 96 97 98/** 99 * Given an EGLConfig handle, return the corresponding _EGLConfig object. 100 */ 101_EGLConfig * 102_eglLookupConfig(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config) 103{ 104 EGLint i; 105 _EGLDisplay *disp = _eglLookupDisplay(dpy); 106 for (i = 0; i < disp->NumConfigs; i++) { 107 if (disp->Configs[i].Handle == config) { 108 return disp->Configs + i; 109 } 110 } 111 return NULL; 112} 113 114 115/** 116 * Add the given _EGLConifg to the given display. 117 */ 118_EGLConfig * 119_eglAddConfig(_EGLDisplay *display, const _EGLConfig *config) 120{ 121 _EGLConfig *newConfigs; 122 EGLint n; 123 124 n = display->NumConfigs; 125 126 newConfigs = (_EGLConfig *) realloc(display->Configs, 127 (n + 1) * sizeof(_EGLConfig)); 128 if (newConfigs) { 129 display->Configs = newConfigs; 130 display->Configs[n] = *config; /* copy struct */ 131 display->Configs[n].Handle = n; 132 display->NumConfigs++; 133 return display->Configs + n; 134 } 135 else { 136 return NULL; 137 } 138} 139 140 141/** 142 * Parse the attrib_list to fill in the fields of the given _egl_config 143 * Return EGL_FALSE if any errors, EGL_TRUE otherwise. 144 */ 145EGLBoolean 146_eglParseConfigAttribs(_EGLConfig *config, const EGLint *attrib_list) 147{ 148 EGLint i; 149 150 /* set all config attribs to EGL_DONT_CARE */ 151 for (i = 0; i < MAX_ATTRIBS; i++) { 152 config->Attrib[i] = EGL_DONT_CARE; 153 } 154 155 for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { 156 if (attrib_list[i] >= EGL_BUFFER_SIZE && 157 attrib_list[i] <= EGL_MAX_SWAP_INTERVAL) { 158 EGLint k = attrib_list[i] - FIRST_ATTRIB; 159 assert(k >= 0); 160 assert(k < MAX_ATTRIBS); 161 config->Attrib[k] = attrib_list[++i]; 162 } 163 else { 164 _eglError(EGL_BAD_ATTRIBUTE, "eglChooseConfig"); 165 return EGL_FALSE; 166 } 167 } 168 return EGL_TRUE; 169} 170 171 172#define EXACT 1 173#define ATLEAST 2 174#define MASK 3 175#define SMALLER 4 176#define SPECIAL 5 177#define NONE 6 178 179struct sort_info { 180 EGLint Attribute; 181 EGLint MatchCriteria; 182 EGLint SortOrder; 183}; 184 185/* This encodes the info from Table 3.5 of the EGL spec, ordered by 186 * Sort Priority. 187 */ 188static struct sort_info SortInfo[] = { 189 { EGL_CONFIG_CAVEAT, EXACT, SPECIAL }, 190 { EGL_RED_SIZE, ATLEAST, SPECIAL }, 191 { EGL_GREEN_SIZE, ATLEAST, SPECIAL }, 192 { EGL_BLUE_SIZE, ATLEAST, SPECIAL }, 193 { EGL_ALPHA_SIZE, ATLEAST, SPECIAL }, 194 { EGL_BUFFER_SIZE, ATLEAST, SMALLER }, 195 { EGL_SAMPLE_BUFFERS, ATLEAST, SMALLER }, 196 { EGL_SAMPLES, ATLEAST, SMALLER }, 197 { EGL_DEPTH_SIZE, ATLEAST, SMALLER }, 198 { EGL_STENCIL_SIZE, ATLEAST, SMALLER }, 199 { EGL_NATIVE_VISUAL_TYPE, EXACT, SPECIAL }, 200 { EGL_CONFIG_ID, EXACT, SMALLER }, 201 { EGL_BIND_TO_TEXTURE_RGB, EXACT, NONE }, 202 { EGL_BIND_TO_TEXTURE_RGBA, EXACT, NONE }, 203 { EGL_LEVEL, EXACT, NONE }, 204 { EGL_NATIVE_RENDERABLE, EXACT, NONE }, 205 { EGL_MAX_SWAP_INTERVAL, EXACT, NONE }, 206 { EGL_MIN_SWAP_INTERVAL, EXACT, NONE }, 207 { EGL_SURFACE_TYPE, MASK, NONE }, 208 { EGL_TRANSPARENT_TYPE, EXACT, NONE }, 209 { EGL_TRANSPARENT_RED_VALUE, EXACT, NONE }, 210 { EGL_TRANSPARENT_GREEN_VALUE, EXACT, NONE }, 211 { EGL_TRANSPARENT_BLUE_VALUE, EXACT, NONE }, 212 { 0, 0, 0 } 213}; 214 215 216/** 217 * Return EGL_TRUE if the attributes of c meet or exceed the minimums 218 * specified by min. 219 */ 220EGLBoolean 221_eglConfigQualifies(const _EGLConfig *c, const _EGLConfig *min) 222{ 223 EGLint i; 224 for (i = 0; SortInfo[i].Attribute != 0; i++) { 225 const EGLint mv = GET_CONFIG_ATTRIB(min, SortInfo[i].Attribute); 226 if (mv != EGL_DONT_CARE) { 227 const EGLint cv = GET_CONFIG_ATTRIB(c, SortInfo[i].Attribute); 228 if (SortInfo[i].MatchCriteria == EXACT) { 229 if (cv != mv) { 230 return EGL_FALSE; 231 } 232 } 233 else if (SortInfo[i].MatchCriteria == ATLEAST) { 234 if (cv < mv) { 235 return EGL_FALSE; 236 } 237 } 238 else { 239 assert(SortInfo[i].MatchCriteria == MASK); 240 if ((mv & cv) != mv) { 241 return EGL_FALSE; 242 } 243 } 244 } 245 } 246 return EGL_TRUE; 247} 248 249 250/** 251 * Compare configs 'a' and 'b' and return -1 if a belongs before b, 252 * 1 if a belongs after b, or 0 if they're equal. 253 */ 254EGLint 255_eglCompareConfigs(const _EGLConfig *a, const _EGLConfig *b) 256{ 257 EGLint i; 258 for (i = 0; SortInfo[i].Attribute != 0; i++) { 259 const EGLint av = GET_CONFIG_ATTRIB(a, SortInfo[i].Attribute); 260 const EGLint bv = GET_CONFIG_ATTRIB(b, SortInfo[i].Attribute); 261 if (SortInfo[i].SortOrder == SMALLER) { 262 if (av < bv) 263 return -1; 264 else if (av > bv) 265 return 1; 266 /* else, continue examining attribute values */ 267 } 268 else if (SortInfo[i].SortOrder == SPECIAL) { 269 if (SortInfo[i].Attribute == EGL_CONFIG_CAVEAT) { 270 /* values are EGL_NONE, SLOW_CONFIG, or NON_CONFORMANT_CONFIG */ 271 if (av < bv) 272 return -1; 273 else if (av > bv) 274 return 1; 275 } 276 else if (SortInfo[i].Attribute == EGL_RED_SIZE || 277 SortInfo[i].Attribute == EGL_GREEN_SIZE || 278 SortInfo[i].Attribute == EGL_BLUE_SIZE || 279 SortInfo[i].Attribute == EGL_ALPHA_SIZE) { 280 if (av > bv) 281 return -1; 282 else if (av < bv) 283 return 1; 284 } 285 else { 286 assert(SortInfo[i].Attribute == EGL_NATIVE_VISUAL_TYPE); 287 if (av < bv) 288 return -1; 289 else if (av > bv) 290 return 1; 291 } 292 } 293 else { 294 assert(SortInfo[i].SortOrder == NONE); 295 /* continue examining attribute values */ 296 } 297 } 298 return 0; 299} 300 301 302/** 303 * Typical fallback routine for eglChooseConfig 304 */ 305EGLBoolean 306_eglChooseConfig(_EGLDriver *drv, EGLDisplay dpy, const EGLint *attrib_list, 307 EGLConfig *configs, EGLint config_size, EGLint *num_config) 308{ 309 _EGLDisplay *disp = _eglLookupDisplay(dpy); 310 _EGLConfig criteria; 311 EGLint i; 312 313 /* parse the attrib_list to initialize criteria */ 314 if (!_eglParseConfigAttribs(&criteria, attrib_list)) { 315 return EGL_FALSE; 316 } 317 318 *num_config = 0; 319 for (i = 0; i < disp->NumConfigs; i++) { 320 const _EGLConfig *conf = disp->Configs + i; 321 if (_eglConfigQualifies(conf, &criteria)) { 322 if (*num_config < config_size) { 323 /* save */ 324 configs[*num_config] = conf->Handle; 325 (*num_config)++; 326 } 327 else { 328 break; 329 } 330 } 331 } 332 333 /* XXX sort the list here */ 334 335 return EGL_TRUE; 336} 337 338 339/** 340 * Fallback for eglGetConfigAttrib. 341 */ 342EGLBoolean 343_eglGetConfigAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, 344 EGLint attribute, EGLint *value) 345{ 346 const _EGLConfig *conf = _eglLookupConfig(drv, dpy, config); 347 const EGLint k = attribute - FIRST_ATTRIB; 348 if (k >= 0 && k < MAX_ATTRIBS) { 349 *value = conf->Attrib[k]; 350 return EGL_TRUE; 351 } 352 else { 353 _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib"); 354 return EGL_FALSE; 355 } 356} 357 358 359/** 360 * Fallback for eglGetConfigs. 361 */ 362EGLBoolean 363_eglGetConfigs(_EGLDriver *drv, EGLDisplay dpy, EGLConfig *configs, 364 EGLint config_size, EGLint *num_config) 365{ 366 _EGLDisplay *disp = _eglLookupDisplay(dpy); 367 368 if (!drv->Initialized) { 369 _eglError(EGL_NOT_INITIALIZED, "eglGetConfigs"); 370 return EGL_FALSE; 371 } 372 373 if (configs) { 374 EGLint i; 375 *num_config = MIN2(disp->NumConfigs, config_size); 376 for (i = 0; i < *num_config; i++) { 377 configs[i] = disp->Configs[i].Handle; 378 } 379 } else 380 *num_config = disp->NumConfigs; 381 382 return EGL_TRUE; 383} 384 385 386/** 387 * Creates a set of \c __GLcontextModes that a driver will expose. 388 * 389 * A set of \c __GLcontextModes will be created based on the supplied 390 * parameters. The number of modes processed will be 2 * 391 * \c num_depth_stencil_bits * \c num_db_modes. 392 * 393 * For the most part, data is just copied from \c depth_bits, \c stencil_bits, 394 * \c db_modes, and \c visType into each \c __GLcontextModes element. 395 * However, the meanings of \c fb_format and \c fb_type require further 396 * explanation. The \c fb_format specifies which color components are in 397 * each pixel and what the default order is. For example, \c GL_RGB specifies 398 * that red, green, blue are available and red is in the "most significant" 399 * position and blue is in the "least significant". The \c fb_type specifies 400 * the bit sizes of each component and the actual ordering. For example, if 401 * \c GL_UNSIGNED_SHORT_5_6_5_REV is specified with \c GL_RGB, bits [15:11] 402 * are the blue value, bits [10:5] are the green value, and bits [4:0] are 403 * the red value. 404 * 405 * One sublte issue is the combination of \c GL_RGB or \c GL_BGR and either 406 * of the \c GL_UNSIGNED_INT_8_8_8_8 modes. The resulting mask values in the 407 * \c __GLcontextModes structure is \b identical to the \c GL_RGBA or 408 * \c GL_BGRA case, except the \c alphaMask is zero. This means that, as 409 * far as this routine is concerned, \c GL_RGB with \c GL_UNSIGNED_INT_8_8_8_8 410 * still uses 32-bits. 411 * 412 * If in doubt, look at the tables used in the function. 413 * 414 * \param ptr_to_modes Pointer to a pointer to a linked list of 415 * \c __GLcontextModes. Upon completion, a pointer to 416 * the next element to be process will be stored here. 417 * If the function fails and returns \c GL_FALSE, this 418 * value will be unmodified, but some elements in the 419 * linked list may be modified. 420 * \param fb_format Format of the framebuffer. Currently only \c GL_RGB, 421 * \c GL_RGBA, \c GL_BGR, and \c GL_BGRA are supported. 422 * \param fb_type Type of the pixels in the framebuffer. Currently only 423 * \c GL_UNSIGNED_SHORT_5_6_5, 424 * \c GL_UNSIGNED_SHORT_5_6_5_REV, 425 * \c GL_UNSIGNED_INT_8_8_8_8, and 426 * \c GL_UNSIGNED_INT_8_8_8_8_REV are supported. 427 * \param depth_bits Array of depth buffer sizes to be exposed. 428 * \param stencil_bits Array of stencil buffer sizes to be exposed. 429 * \param num_depth_stencil_bits Number of entries in both \c depth_bits and 430 * \c stencil_bits. 431 * \param db_modes Array of buffer swap modes. If an element has a 432 * value of \c GLX_NONE, then it represents a 433 * single-buffered mode. Other valid values are 434 * \c GLX_SWAP_EXCHANGE_OML, \c GLX_SWAP_COPY_OML, and 435 * \c GLX_SWAP_UNDEFINED_OML. See the 436 * GLX_OML_swap_method extension spec for more details. 437 * \param num_db_modes Number of entries in \c db_modes. 438 * \param visType GLX visual type. Usually either \c GLX_TRUE_COLOR or 439 * \c GLX_DIRECT_COLOR. 440 * 441 * \returns 442 * \c GL_TRUE on success or \c GL_FALSE on failure. Currently the only 443 * cause of failure is a bad parameter (i.e., unsupported \c fb_format or 444 * \c fb_type). 445 * 446 * \todo 447 * There is currently no way to support packed RGB modes (i.e., modes with 448 * exactly 3 bytes per pixel) or floating-point modes. This could probably 449 * be done by creating some new, private enums with clever names likes 450 * \c GL_UNSIGNED_3BYTE_8_8_8, \c GL_4FLOAT_32_32_32_32, 451 * \c GL_4HALF_16_16_16_16, etc. We can cross that bridge when we come to it. 452 */ 453GLboolean 454_eglFillInConfigs(_EGLConfig * configs, 455 GLenum fb_format, GLenum fb_type, 456 const u_int8_t * depth_bits, const u_int8_t * stencil_bits, 457 unsigned num_depth_stencil_bits, 458 const GLenum * db_modes, unsigned num_db_modes, 459 int visType) 460{ 461 static const u_int8_t bits_table[3][4] = { 462 /* R G B A */ 463 { 5, 6, 5, 0 }, /* Any GL_UNSIGNED_SHORT_5_6_5 */ 464 { 8, 8, 8, 0 }, /* Any RGB with any GL_UNSIGNED_INT_8_8_8_8 */ 465 { 8, 8, 8, 8 } /* Any RGBA with any GL_UNSIGNED_INT_8_8_8_8 */ 466 }; 467 468 /* The following arrays are all indexed by the fb_type masked with 0x07. 469 * Given the four supported fb_type values, this results in valid array 470 * indices of 3, 4, 5, and 7. 471 */ 472 static const u_int32_t masks_table_rgb[8][4] = { 473 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 474 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 475 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 476 {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5 */ 477 {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5_REV */ 478 {0xFF000000, 0x00FF0000, 0x0000FF00, 0x00000000}, /* 8_8_8_8 */ 479 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 480 {0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000} /* 8_8_8_8_REV */ 481 }; 482 483 static const u_int32_t masks_table_rgba[8][4] = { 484 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 485 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 486 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 487 {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5 */ 488 {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5_REV */ 489 {0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF}, /* 8_8_8_8 */ 490 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 491 {0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000}, /* 8_8_8_8_REV */ 492 }; 493 494 static const u_int32_t masks_table_bgr[8][4] = { 495 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 496 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 497 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 498 {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5 */ 499 {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5_REV */ 500 {0x0000FF00, 0x00FF0000, 0xFF000000, 0x00000000}, /* 8_8_8_8 */ 501 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 502 {0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000}, /* 8_8_8_8_REV */ 503 }; 504 505 static const u_int32_t masks_table_bgra[8][4] = { 506 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 507 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 508 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 509 {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5 */ 510 {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5_REV */ 511 {0x0000FF00, 0x00FF0000, 0xFF000000, 0x000000FF}, /* 8_8_8_8 */ 512 {0x00000000, 0x00000000, 0x00000000, 0x00000000}, 513 {0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000}, /* 8_8_8_8_REV */ 514 }; 515 516 static const u_int8_t bytes_per_pixel[8] = { 517 0, 0, 0, 2, 2, 4, 0, 4 518 }; 519 520 const u_int8_t * bits; 521 const u_int32_t * masks; 522 const int index = fb_type & 0x07; 523 _EGLConfig *config; 524 unsigned i; 525 unsigned j; 526 unsigned k; 527 528 if ( bytes_per_pixel[index] == 0 ) { 529 _eglLog(_EGL_INFO, 530 "[%s:%u] Framebuffer type 0x%04x has 0 bytes per pixel.", 531 __FUNCTION__, __LINE__, fb_type); 532 return GL_FALSE; 533 } 534 535 /* Valid types are GL_UNSIGNED_SHORT_5_6_5 and GL_UNSIGNED_INT_8_8_8_8 and 536 * the _REV versions. 537 * 538 * Valid formats are GL_RGBA, GL_RGB, and GL_BGRA. 539 */ 540 switch ( fb_format ) { 541 case GL_RGB: 542 bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[1]; 543 masks = masks_table_rgb[index]; 544 break; 545 546 case GL_RGBA: 547 bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[2]; 548 masks = masks_table_rgba[index]; 549 break; 550 551 case GL_BGR: 552 bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[1]; 553 masks = masks_table_bgr[index]; 554 break; 555 556 case GL_BGRA: 557 bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[2]; 558 masks = masks_table_bgra[index]; 559 break; 560 561 default: 562 _eglLog(_EGL_WARNING, 563 "[%s:%u] Framebuffer format 0x%04x is not GL_RGB, GL_RGBA, GL_BGR, or GL_BGRA.", 564 __FUNCTION__, __LINE__, fb_format); 565 return GL_FALSE; 566 } 567 568 config = configs; 569 for (k = 0; k < num_depth_stencil_bits; k++) { 570 for (i = 0; i < num_db_modes; i++) { 571 for (j = 0; j < 2; j++) { 572 _eglSetConfigAttrib(config, EGL_RED_SIZE, bits[0]); 573 _eglSetConfigAttrib(config, EGL_GREEN_SIZE, bits[1]); 574 _eglSetConfigAttrib(config, EGL_BLUE_SIZE, bits[2]); 575 _eglSetConfigAttrib(config, EGL_ALPHA_SIZE, bits[3]); 576 _eglSetConfigAttrib(config, EGL_BUFFER_SIZE, 577 bits[0] + bits[1] + bits[2] + bits[3]); 578 579 _eglSetConfigAttrib(config, EGL_STENCIL_SIZE, stencil_bits[k]); 580 _eglSetConfigAttrib(config, EGL_DEPTH_SIZE, depth_bits[i]); 581 582 _eglSetConfigAttrib(config, EGL_SURFACE_TYPE, EGL_SCREEN_BIT_MESA | 583 EGL_PBUFFER_BIT | EGL_PIXMAP_BIT | EGL_WINDOW_BIT); 584 585 config++; 586 } 587 } 588 } 589 return GL_TRUE; 590} 591