diff options
author | 2015-05-29 11:37:25 -0700 | |
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committer | 2015-05-29 11:37:25 -0700 | |
commit | 993a4216a6014b9de8f4d8120360c94550dc6761 (patch) | |
tree | 75e4863a6fa83d35c519a3103a9d2c94520dbd1e /src/image | |
parent | 4061b1262e931be19e1176cbd0e93b8c268eb131 (diff) |
SkImage::NewFromYUVTexturesCopy
Review URL: https://codereview.chromium.org/1149553002
Diffstat (limited to 'src/image')
-rw-r--r-- | src/image/SkImage_Gpu.cpp | 77 |
1 files changed, 76 insertions, 1 deletions
diff --git a/src/image/SkImage_Gpu.cpp b/src/image/SkImage_Gpu.cpp index 06ecda10e2..4c3e1300c5 100644 --- a/src/image/SkImage_Gpu.cpp +++ b/src/image/SkImage_Gpu.cpp @@ -6,10 +6,13 @@ */ #include "SkImage_Gpu.h" -#include "SkCanvas.h" #include "GrContext.h" +#include "GrDrawContext.h" +#include "effects/GrYUVtoRGBEffect.h" +#include "SkCanvas.h" #include "SkGpuDevice.h" + SkImage_Gpu::SkImage_Gpu(int w, int h, SkAlphaType at, GrTexture* tex, int sampleCountForNewSurfaces, SkSurface::Budgeted budgeted) : INHERITED(w, h, NULL) @@ -159,3 +162,75 @@ SkImage* SkImage::NewFromTextureCopy(GrContext* ctx, const GrBackendTextureDesc& return SkNEW_ARGS(SkImage_Gpu, (dstDesc.fWidth, dstDesc.fHeight, at, dst, sampleCount, budgeted)); } + +SkImage* SkImage::NewFromYUVTexturesCopy(GrContext* ctx , SkYUVColorSpace colorSpace, + const GrBackendObject yuvTextureHandles[3], + const SkISize yuvSizes[3], + GrSurfaceOrigin origin) { + const SkSurface::Budgeted budgeted = SkSurface::kYes_Budgeted; + + if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 || + yuvSizes[1].fWidth <= 0 || yuvSizes[1].fHeight <= 0 || + yuvSizes[2].fWidth <= 0 || yuvSizes[2].fHeight <= 0) { + return NULL; + } + static const GrPixelConfig kConfig = kAlpha_8_GrPixelConfig; + GrBackendTextureDesc yDesc; + yDesc.fConfig = kConfig; + yDesc.fOrigin = origin; + yDesc.fSampleCnt = 0; + yDesc.fTextureHandle = yuvTextureHandles[0]; + yDesc.fWidth = yuvSizes[0].fWidth; + yDesc.fHeight = yuvSizes[0].fHeight; + + GrBackendTextureDesc uDesc; + uDesc.fConfig = kConfig; + uDesc.fOrigin = origin; + uDesc.fSampleCnt = 0; + uDesc.fTextureHandle = yuvTextureHandles[1]; + uDesc.fWidth = yuvSizes[1].fWidth; + uDesc.fHeight = yuvSizes[1].fHeight; + + GrBackendTextureDesc vDesc; + vDesc.fConfig = kConfig; + vDesc.fOrigin = origin; + vDesc.fSampleCnt = 0; + vDesc.fTextureHandle = yuvTextureHandles[2]; + vDesc.fWidth = yuvSizes[2].fWidth; + vDesc.fHeight = yuvSizes[2].fHeight; + + SkAutoTUnref<GrTexture> yTex(ctx->textureProvider()->wrapBackendTexture(yDesc)); + SkAutoTUnref<GrTexture> uTex(ctx->textureProvider()->wrapBackendTexture(uDesc)); + SkAutoTUnref<GrTexture> vTex(ctx->textureProvider()->wrapBackendTexture(vDesc)); + if (!yTex || !uTex || !vTex) { + return NULL; + } + + GrSurfaceDesc dstDesc; + // Needs to be a render target in order to draw to it for the yuv->rgb conversion. + dstDesc.fFlags = kRenderTarget_GrSurfaceFlag; + dstDesc.fOrigin = origin; + dstDesc.fWidth = yuvSizes[0].fWidth; + dstDesc.fHeight = yuvSizes[0].fHeight; + dstDesc.fConfig = kRGBA_8888_GrPixelConfig; + dstDesc.fSampleCnt = 0; + + SkAutoTUnref<GrTexture> dst(ctx->textureProvider()->refScratchTexture( + dstDesc, GrTextureProvider::kExact_ScratchTexMatch)); + if (!dst) { + return NULL; + } + + GrPaint paint; + paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); + paint.addColorProcessor(GrYUVtoRGBEffect::Create(yTex, uTex, vTex, yuvSizes, + colorSpace))->unref(); + + const SkRect rect = SkRect::MakeWH(SkIntToScalar(dstDesc.fWidth), + SkIntToScalar(dstDesc.fHeight)); + ctx->drawContext()->drawRect(dst->asRenderTarget(), GrClip::WideOpen(), paint, SkMatrix::I(), + rect); + ctx->flushSurfaceWrites(dst); + return SkNEW_ARGS(SkImage_Gpu, (dstDesc.fWidth, dstDesc.fHeight, kOpaque_SkAlphaType, dst, 0, + budgeted)); +} |