diff options
author | Brian Osman <brianosman@google.com> | 2017-02-23 17:06:10 -0500 |
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committer | Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-02-24 16:09:33 +0000 |
commit | 9ad1f92e2fceea33215c0f13cee42a679fb88d44 (patch) | |
tree | f44afa1066b401ae5e3cf189078ff6fceaccca78 /src/gpu/GrTexturePriv.h | |
parent | 20de615e3d02ff52c9a3c319ce35bcaace97be25 (diff) |
Add GrExternalTextureData and SkCrossContextImageData
GrExternalTextureData is an API for exporting the backend-specific
information about a texture in a type-safe way, and without pointing
into the GrTexture. The new detachBackendTexture API lets us release
ownership of a texture to the client.
SkCrossContextImageData is the public API that lets clients upload
textures on one thread/GrContext, then safely transfer ownership to
another thread and GrContext for rendering.
Only GL is implemented/supported right now. Vulkan support requires
that we add thread-safe memory pools, or otherwise transfer the
actual memory block containing the texture to the new context.
BUG=skia:
Change-Id: I784a3a74be69807df038c7d192eaed002c7e45ca
Reviewed-on: https://skia-review.googlesource.com/8529
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Diffstat (limited to 'src/gpu/GrTexturePriv.h')
-rw-r--r-- | src/gpu/GrTexturePriv.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gpu/GrTexturePriv.h b/src/gpu/GrTexturePriv.h index 042061129d..cc0a05edfd 100644 --- a/src/gpu/GrTexturePriv.h +++ b/src/gpu/GrTexturePriv.h @@ -8,6 +8,7 @@ #ifndef GrTexturePriv_DEFINED #define GrTexturePriv_DEFINED +#include "GrExternalTextureData.h" #include "GrTexture.h" /** Class that adds methods to GrTexture that are only intended for use internal to Skia. @@ -67,6 +68,15 @@ public: } SkDestinationSurfaceColorMode mipColorMode() const { return fTexture->fMipColorMode; } + /** + * Return the native bookkeeping data for this texture, and detach the backend object from + * this GrTexture. It's lifetime will no longer be managed by Ganesh, and this GrTexture will + * no longer refer to it. Leaves this GrTexture in an orphan state. + */ + std::unique_ptr<GrExternalTextureData> detachBackendTexture() { + return fTexture->detachBackendTexture(); + } + static void ComputeScratchKey(const GrSurfaceDesc&, GrScratchKey*); private: |