diff options
Diffstat (limited to 'chromium/media/gpu/surface_texture_gl_owner.h')
-rw-r--r-- | chromium/media/gpu/surface_texture_gl_owner.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/chromium/media/gpu/surface_texture_gl_owner.h b/chromium/media/gpu/surface_texture_gl_owner.h new file mode 100644 index 00000000000..f28827ad309 --- /dev/null +++ b/chromium/media/gpu/surface_texture_gl_owner.h @@ -0,0 +1,53 @@ +// Copyright 2017 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef MEDIA_GPU_SURFACE_TEXTURE_GL_OWNER_H_ +#define MEDIA_GPU_SURFACE_TEXTURE_GL_OWNER_H_ + +#include "base/threading/thread_checker.h" +#include "media/gpu/media_gpu_export.h" +#include "ui/gl/android/surface_texture.h" +#include "ui/gl/gl_bindings.h" +#include "ui/gl/gl_context.h" +#include "ui/gl/gl_surface.h" + +namespace media { + +// Handy subclass of SurfaceTexture which creates and maintains ownership of the +// GL texture also. This texture is only destroyed with the object; one may +// ReleaseSurfaceTexture without destroying the GL texture. It must be deleted +// on the same thread on which it is constructed. +class MEDIA_GPU_EXPORT SurfaceTextureGLOwner : public gl::SurfaceTexture { + public: + // Must be called with a platform gl context current. Creates the GL texture + // using this context, and memorizes it to delete the texture later. + static scoped_refptr<SurfaceTextureGLOwner> Create(); + + // Return the GL texture id that we created. + GLuint texture_id() const { return texture_id_; } + + gl::GLContext* context() const { return context_.get(); } + gl::GLSurface* surface() const { return surface_.get(); } + + // We don't support these. In principle, we could, but they're fairly buggy + // anyway on many devices. + void AttachToGLContext() override; + void DetachFromGLContext() override; + + private: + SurfaceTextureGLOwner(GLuint texture_id); + ~SurfaceTextureGLOwner() override; + + // Context and surface that were used to create |texture_id_|. + scoped_refptr<gl::GLContext> context_; + scoped_refptr<gl::GLSurface> surface_; + + GLuint texture_id_; + + base::ThreadChecker thread_checker_; +}; + +} // namespace media + +#endif // MEDIA_GPU_SURFACE_TEXTURE_GL_OWNER_H_ |