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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 "GrGLBuffer.h" | 9 #include "GrGLBuffer.h" |
10 #include "GrGLGLSL.h" | 10 #include "GrGLGLSL.h" |
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3581 return false; | 3581 return false; |
3582 } | 3582 } |
3583 | 3583 |
3584 // We look for opportunities to use CopyTexSubImage, or fbo blit. If neither
are | 3584 // We look for opportunities to use CopyTexSubImage, or fbo blit. If neither
are |
3585 // possible and we return false to fallback to creating a render target dst
for render-to- | 3585 // possible and we return false to fallback to creating a render target dst
for render-to- |
3586 // texture. This code prefers CopyTexSubImage to fbo blit and avoids trigger
ing temporary fbo | 3586 // texture. This code prefers CopyTexSubImage to fbo blit and avoids trigger
ing temporary fbo |
3587 // creation. It isn't clear that avoiding temporary fbo creation is actually
optimal. | 3587 // creation. It isn't clear that avoiding temporary fbo creation is actually
optimal. |
3588 | 3588 |
3589 GrSurfaceOrigin originForBlitFramebuffer = kDefault_GrSurfaceOrigin; | 3589 GrSurfaceOrigin originForBlitFramebuffer = kDefault_GrSurfaceOrigin; |
3590 if (this->glCaps().blitFramebufferSupport() == | 3590 if (this->glCaps().blitFramebufferSupport() == |
3591 » GrGLCaps::kNoScalingNoMirroring_BlitFramebufferSupport) { | 3591 GrGLCaps::kNoScalingNoMirroring_BlitFramebufferSupport) { |
3592 originForBlitFramebuffer = src->origin(); | 3592 originForBlitFramebuffer = src->origin(); |
3593 } | 3593 } |
3594 | 3594 |
3595 // Check for format issues with glCopyTexSubImage2D | 3595 // Check for format issues with glCopyTexSubImage2D |
3596 if (kGLES_GrGLStandard == this->glStandard() && this->glCaps().bgraIsInterna
lFormat() && | 3596 if (kGLES_GrGLStandard == this->glStandard() && this->glCaps().bgraIsInterna
lFormat() && |
3597 kBGRA_8888_GrPixelConfig == src->config()) { | 3597 kBGRA_8888_GrPixelConfig == src->config()) { |
3598 // glCopyTexSubImage2D doesn't work with this config. If the bgra can be
used with fbo blit | 3598 // glCopyTexSubImage2D doesn't work with this config. If the bgra can be
used with fbo blit |
3599 // then we set up for that, otherwise fail. | 3599 // then we set up for that, otherwise fail. |
3600 if (this->caps()->isConfigRenderable(kBGRA_8888_GrPixelConfig, false)) { | 3600 if (this->caps()->isConfigRenderable(kBGRA_8888_GrPixelConfig, false)) { |
3601 desc->fOrigin = originForBlitFramebuffer; | 3601 desc->fOrigin = originForBlitFramebuffer; |
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4647 if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() || | 4647 if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() || |
4648 GR_GL_TEXTURE_RECTANGLE == glTexture->target()) { | 4648 GR_GL_TEXTURE_RECTANGLE == glTexture->target()) { |
4649 copyParams->fFilter = GrTextureParams::kNone_FilterMode; | 4649 copyParams->fFilter = GrTextureParams::kNone_FilterMode; |
4650 copyParams->fWidth = texture->width(); | 4650 copyParams->fWidth = texture->width(); |
4651 copyParams->fHeight = texture->height(); | 4651 copyParams->fHeight = texture->height(); |
4652 return true; | 4652 return true; |
4653 } | 4653 } |
4654 } | 4654 } |
4655 return false; | 4655 return false; |
4656 } | 4656 } |
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