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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 #include "GrGLGpu.h" | 8 #include "GrGLGpu.h" |
9 #include "GrGLGLSL.h" | 9 #include "GrGLGLSL.h" |
10 #include "GrGLStencilAttachment.h" | 10 #include "GrGLStencilAttachment.h" |
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2553 // For now keep assuming the draw is not a format transformation, just a draw to get to a | 2553 // For now keep assuming the draw is not a format transformation, just a draw to get to a |
2554 // RT. We may add additional transformations below. | 2554 // RT. We may add additional transformations below. |
2555 ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); | 2555 ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
2556 } | 2556 } |
2557 if (this->glCaps().rgba8888PixelsOpsAreSlow() && kRGBA_8888_GrPixelConfig == readConfig && | 2557 if (this->glCaps().rgba8888PixelsOpsAreSlow() && kRGBA_8888_GrPixelConfig == readConfig && |
2558 this->readPixelsSupported(kBGRA_8888_GrPixelConfig, kBGRA_8888_GrPixelCo nfig)) { | 2558 this->readPixelsSupported(kBGRA_8888_GrPixelConfig, kBGRA_8888_GrPixelCo nfig)) { |
2559 tempDrawInfo->fTempSurfaceDesc.fConfig = kBGRA_8888_GrPixelConfig; | 2559 tempDrawInfo->fTempSurfaceDesc.fConfig = kBGRA_8888_GrPixelConfig; |
2560 tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); | 2560 tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
2561 tempDrawInfo->fReadConfig = kBGRA_8888_GrPixelConfig; | 2561 tempDrawInfo->fReadConfig = kBGRA_8888_GrPixelConfig; |
2562 ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); | 2562 ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
2563 } else if (kMesa_GrGLDriver == this->glContext().driver() && | 2563 } else if (this->glCaps().rgbaToBgraReadbackConversionsAreSlow() && |
2564 GrBytesPerPixel(readConfig) == 4 && | 2564 GrBytesPerPixel(readConfig) == 4 && |
2565 GrPixelConfigSwapRAndB(readConfig) == srcConfig && | 2565 GrPixelConfigSwapRAndB(readConfig) == srcConfig && |
2566 this->readPixelsSupported(srcSurface, srcConfig)) { | 2566 this->readPixelsSupported(srcSurface, srcConfig)) { |
2567 // Mesa 3D takes a slow path on when reading back BGRA from an RGBA surf ace and vice-versa. | 2567 // Mesa 3D takes a slow path on when reading back BGRA from an RGBA surf ace and vice-versa. |
reed1
2016/03/12 11:06:36
Possibly we should update the comment to refer to
| |
2568 // Better to do a draw with a R/B swap and then read as the original con fig. | 2568 // Better to do a draw with a R/B swap and then read as the original con fig. |
2569 tempDrawInfo->fTempSurfaceDesc.fConfig = srcConfig; | 2569 tempDrawInfo->fTempSurfaceDesc.fConfig = srcConfig; |
2570 tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); | 2570 tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
2571 tempDrawInfo->fReadConfig = srcConfig; | 2571 tempDrawInfo->fReadConfig = srcConfig; |
2572 ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); | 2572 ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
2573 } else if (!this->readPixelsSupported(srcSurface, readConfig)) { | 2573 } else if (!this->readPixelsSupported(srcSurface, readConfig)) { |
2574 if (readConfig == kBGRA_8888_GrPixelConfig && | 2574 if (readConfig == kBGRA_8888_GrPixelConfig && |
2575 this->glCaps().isConfigRenderable(kRGBA_8888_GrPixelConfig, false) & & | 2575 this->glCaps().isConfigRenderable(kRGBA_8888_GrPixelConfig, false) & & |
2576 this->readPixelsSupported(kRGBA_8888_GrPixelConfig, kRGBA_8888_GrPix elConfig)) { | 2576 this->readPixelsSupported(kRGBA_8888_GrPixelConfig, kRGBA_8888_GrPix elConfig)) { |
2577 // We're trying to read BGRA but it's not supported. If RGBA is rend erable and | 2577 // We're trying to read BGRA but it's not supported. If RGBA is rend erable and |
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4352 if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() || | 4352 if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() || |
4353 GR_GL_TEXTURE_RECTANGLE == glTexture->target()) { | 4353 GR_GL_TEXTURE_RECTANGLE == glTexture->target()) { |
4354 copyParams->fFilter = GrTextureParams::kNone_FilterMode; | 4354 copyParams->fFilter = GrTextureParams::kNone_FilterMode; |
4355 copyParams->fWidth = texture->width(); | 4355 copyParams->fWidth = texture->width(); |
4356 copyParams->fHeight = texture->height(); | 4356 copyParams->fHeight = texture->height(); |
4357 return true; | 4357 return true; |
4358 } | 4358 } |
4359 } | 4359 } |
4360 return false; | 4360 return false; |
4361 } | 4361 } |
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