diff options
author | 2014-10-02 10:42:24 -0700 | |
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committer | 2014-10-02 10:42:24 -0700 | |
commit | cf99b00980b6c9c557e71abf1a7c9f9b21217262 (patch) | |
tree | 78d53c2e98762fb6e810603c104d03e356c26876 /include/gpu/GrContext.h | |
parent | f0e2154b45ab2bb0d7fa5a9d38955260ce42831c (diff) |
GrContext::copyTexture->GrContext::copySurface.
Add a flush writes pixel ops flag.
Add an explicit flush writes for GrSurface.
BUG=skia:2977
Review URL: https://codereview.chromium.org/622663002
Diffstat (limited to 'include/gpu/GrContext.h')
-rw-r--r-- | include/gpu/GrContext.h | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h index 366fba993e..4500936b82 100644 --- a/include/gpu/GrContext.h +++ b/include/gpu/GrContext.h @@ -597,12 +597,15 @@ public: * These flags can be used with the read/write pixels functions below. */ enum PixelOpsFlags { - /** The GrContext will not be flushed. This means that the read or write may occur before - previous draws have executed. */ + /** The GrContext will not be flushed before the surface read or write. This means that + the read or write may occur before previous draws have executed. */ kDontFlush_PixelOpsFlag = 0x1, + /** Any surface writes should be flushed to the backend 3D API after the surface operation + is complete */ + kFlushWrites_PixelOp = 0x2, /** The src for write or dst read is unpremultiplied. This is only respected if both the config src and dst configs are an RGBA/BGRA 8888 format. */ - kUnpremul_PixelOpsFlag = 0x2, + kUnpremul_PixelOpsFlag = 0x4, }; /** @@ -695,15 +698,36 @@ public: uint32_t pixelOpsFlags = 0); /** - * Copies a rectangle of texels from src to dst. The size of dst is the size of the rectangle - * copied and topLeft is the position of the rect in src. The rectangle is clipped to src's + * Copies a rectangle of texels from src to dst. * bounds. - * @param src the texture to copy from. - * @param dst the render target to copy to. - * @param topLeft the point in src that will be copied to the top-left of dst. If NULL, - * (0, 0) will be used. + * @param dst the surface to copy to. + * @param src the surface to copy from. + * @param srcRect the rectangle of the src that should be copied. + * @param dstPoint the translation applied when writing the srcRect's pixels to the dst. + * @param pixelOpsFlags see PixelOpsFlags enum above. (kUnpremul_PixelOpsFlag is not allowed). */ - void copyTexture(GrTexture* src, GrRenderTarget* dst, const SkIPoint* topLeft = NULL); + void copySurface(GrSurface* dst, + GrSurface* src, + const SkIRect& srcRect, + const SkIPoint& dstPoint, + uint32_t pixelOpsFlags = 0); + + /** Helper that copies the whole surface but fails when the two surfaces are not identically + sized. */ + bool copySurface(GrSurface* dst, GrSurface* src) { + if (NULL == dst || NULL == src || dst->width() != src->width() || + dst->height() != src->height()) { + return false; + } + this->copySurface(dst, src, SkIRect::MakeWH(dst->width(), dst->height()), + SkIPoint::Make(0,0)); + return true; + } + + /** + * After this returns any pending writes to the surface will have been issued to the backend 3D API. + */ + void flushSurfaceWrites(GrSurface* surface); /** * Resolves a render target that has MSAA. The intermediate MSAA buffer is |