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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 | 8 |
9 #include "GrGpuGL.h" | 9 #include "GrGpuGL.h" |
10 #include "GrGLStencilBuffer.h" | 10 #include "GrGLStencilBuffer.h" |
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547 this->glCaps().texStorageSupport(); | 547 this->glCaps().texStorageSupport(); |
548 | 548 |
549 if (useTexStorage && kGL_GrGLStandard == this->glStandard()) { | 549 if (useTexStorage && kGL_GrGLStandard == this->glStandard()) { |
550 // 565 is not a sized internal format on desktop GL. So on desktop with | 550 // 565 is not a sized internal format on desktop GL. So on desktop with |
551 // 565 we always use an unsized internal format to let the system pick | 551 // 565 we always use an unsized internal format to let the system pick |
552 // the best sized format to convert the 565 data to. Since TexStorage | 552 // the best sized format to convert the 565 data to. Since TexStorage |
553 // only allows sized internal formats we will instead use TexImage2D. | 553 // only allows sized internal formats we will instead use TexImage2D. |
554 useTexStorage = desc.fConfig != kRGB_565_GrPixelConfig; | 554 useTexStorage = desc.fConfig != kRGB_565_GrPixelConfig; |
555 } | 555 } |
556 | 556 |
557 GrGLenum internalFormat; | 557 GrGLenum internalFormat = 0x0; // suppress warning |
558 GrGLenum externalFormat = 0x0; // suprress warning | 558 GrGLenum externalFormat = 0x0; // suppress warning |
559 GrGLenum externalType = 0x0;// suprress warning | 559 GrGLenum externalType = 0x0; // suppress warning |
560 | 560 |
561 // glTexStorage requires sized internal formats on both desktop and ES. ES2
requires an unsized | 561 // glTexStorage requires sized internal formats on both desktop and ES. |
562 // format for glTexImage, unlike ES3 and desktop. However, we allow the driv
er to decide the | 562 // ES2 requires an unsized format for glTexImage. On ES3 and desktop we defa
ult to sized. |
563 // size of the internal format whenever possible and so only use a sized int
ernal format when | 563 bool useSizedFormat = useTexStorage || kGL_GrGLStandard == this->glStandard(
) || |
564 // using texture storage. | 564 this->glVersion() >= GR_GL_VER(3, 0); |
565 bool useSizedFormat = useTexStorage; | |
566 // Many versions of the ES3 drivers on various platforms will not accept GL_
RED in | |
567 // glTexImage2D for the internal format but will accept GL_R8. | |
568 if (kGLES_GrGLStandard == this->glStandard() && this->glVersion() >= GR_GL_V
ER(3, 0) && | |
569 kAlpha_8_GrPixelConfig == dataConfig) { | |
570 useSizedFormat = true; | |
571 } | |
572 if (!this->configToGLFormats(dataConfig, useSizedFormat, &internalFormat, | 565 if (!this->configToGLFormats(dataConfig, useSizedFormat, &internalFormat, |
573 &externalFormat, &externalType)) { | 566 &externalFormat, &externalType)) { |
574 return false; | 567 return false; |
575 } | 568 } |
576 | 569 |
577 /* | 570 /* |
578 * check whether to allocate a temporary buffer for flipping y or | 571 * check whether to allocate a temporary buffer for flipping y or |
579 * because our srcData has extra bytes past each row. If so, we need | 572 * because our srcData has extra bytes past each row. If so, we need |
580 * to trim those off here, since GL ES may not let us specify | 573 * to trim those off here, since GL ES may not let us specify |
581 * GL_UNPACK_ROW_LENGTH. | 574 * GL_UNPACK_ROW_LENGTH. |
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2269 *internalFormat = GR_GL_RGBA; | 2262 *internalFormat = GR_GL_RGBA; |
2270 } | 2263 } |
2271 } | 2264 } |
2272 *externalFormat = GR_GL_BGRA; | 2265 *externalFormat = GR_GL_BGRA; |
2273 *externalType = GR_GL_UNSIGNED_BYTE; | 2266 *externalType = GR_GL_UNSIGNED_BYTE; |
2274 break; | 2267 break; |
2275 case kRGB_565_GrPixelConfig: | 2268 case kRGB_565_GrPixelConfig: |
2276 *internalFormat = GR_GL_RGB; | 2269 *internalFormat = GR_GL_RGB; |
2277 *externalFormat = GR_GL_RGB; | 2270 *externalFormat = GR_GL_RGB; |
2278 if (getSizedInternalFormat) { | 2271 if (getSizedInternalFormat) { |
2279 if (this->glStandard() == kGL_GrGLStandard) { | 2272 if (!this->glCaps().ES2CompatibilitySupport()) { |
2280 return false; | 2273 *internalFormat = GR_GL_RGB5; |
2281 } else { | 2274 } else { |
2282 *internalFormat = GR_GL_RGB565; | 2275 *internalFormat = GR_GL_RGB565; |
2283 } | 2276 } |
2284 } else { | 2277 } else { |
2285 *internalFormat = GR_GL_RGB; | 2278 *internalFormat = GR_GL_RGB; |
2286 } | 2279 } |
2287 *externalType = GR_GL_UNSIGNED_SHORT_5_6_5; | 2280 *externalType = GR_GL_UNSIGNED_SHORT_5_6_5; |
2288 break; | 2281 break; |
2289 case kRGBA_4444_GrPixelConfig: | 2282 case kRGBA_4444_GrPixelConfig: |
2290 *internalFormat = GR_GL_RGBA; | 2283 *internalFormat = GR_GL_RGBA; |
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2695 this->setVertexArrayID(gpu, 0); | 2688 this->setVertexArrayID(gpu, 0); |
2696 } | 2689 } |
2697 int attrCount = gpu->glCaps().maxVertexAttributes(); | 2690 int attrCount = gpu->glCaps().maxVertexAttributes(); |
2698 if (fDefaultVertexArrayAttribState.count() != attrCount) { | 2691 if (fDefaultVertexArrayAttribState.count() != attrCount) { |
2699 fDefaultVertexArrayAttribState.resize(attrCount); | 2692 fDefaultVertexArrayAttribState.resize(attrCount); |
2700 } | 2693 } |
2701 attribState = &fDefaultVertexArrayAttribState; | 2694 attribState = &fDefaultVertexArrayAttribState; |
2702 } | 2695 } |
2703 return attribState; | 2696 return attribState; |
2704 } | 2697 } |
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