diff options
author | Brian Osman <brianosman@google.com> | 2017-02-23 17:06:10 -0500 |
---|---|---|
committer | Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-02-24 16:09:33 +0000 |
commit | 9ad1f92e2fceea33215c0f13cee42a679fb88d44 (patch) | |
tree | f44afa1066b401ae5e3cf189078ff6fceaccca78 /include/gpu/gl | |
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 'include/gpu/gl')
-rw-r--r-- | include/gpu/gl/GrGLTypes.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/gpu/gl/GrGLTypes.h b/include/gpu/gl/GrGLTypes.h index 5b9e31de1a..d03363c75e 100644 --- a/include/gpu/gl/GrGLTypes.h +++ b/include/gpu/gl/GrGLTypes.h @@ -9,6 +9,7 @@ #ifndef GrGLTypes_DEFINED #define GrGLTypes_DEFINED +#include "GrExternalTextureData.h" #include "GrGLConfig.h" /** @@ -112,6 +113,23 @@ struct GrGLTextureInfo { GrGLuint fID; }; +class GrGLExternalTextureData : public GrExternalTextureData { +public: + GrGLExternalTextureData(const GrGLTextureInfo& info, GrFence fence) + : INHERITED(fence) + , fInfo(info) {} + GrBackend getBackend() const override { return kOpenGL_GrBackend; } + +protected: + GrBackendObject getBackendObject() const override { + return reinterpret_cast<GrBackendObject>(&fInfo); + } + + GrGLTextureInfo fInfo; + + typedef GrExternalTextureData INHERITED; +}; + GR_STATIC_ASSERT(sizeof(GrBackendObject) >= sizeof(const GrGLTextureInfo*)); #endif |