diff options
Diffstat (limited to 'src/gpu/gl/GrGLGpu.cpp')
| -rw-r--r-- | src/gpu/gl/GrGLGpu.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp index e8dc788415..101bb216f4 100644 --- a/src/gpu/gl/GrGLGpu.cpp +++ b/src/gpu/gl/GrGLGpu.cpp @@ -1686,6 +1686,12 @@ static bool read_pixels_pays_for_y_flip(GrRenderTarget* renderTarget, const GrGL return false; } + // If the read is really small or smaller than the min texture size, don't force a draw. + int minSize = SkTMax(32, caps.minTextureSize()); + if (width < minSize || height < minSize) { + return false; + } + // if GL can do the flip then we'll never pay for it. if (caps.packFlipYSupport()) { return false; @@ -1726,7 +1732,9 @@ bool GrGLGpu::getReadPixelsInfo(GrSurface* srcSurface, int width, int height, si tempDrawInfo->fTempSurfaceDesc.fHeight = height; tempDrawInfo->fTempSurfaceDesc.fSampleCnt = 0; tempDrawInfo->fTempSurfaceDesc.fOrigin = kTopLeft_GrSurfaceOrigin; // no CPU y-flip for TL. - tempDrawInfo->fUseExactScratch = SkToBool(GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL); + tempDrawInfo->fUseExactScratch = SkToBool(GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL) && + width >= this->caps()->minTextureSize() && + height >= this->caps()->minTextureSize(); // Start off assuming that any temp draw should be to the readConfig, then check if that will // be inefficient. |