| // Copyright 2013 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 UI_GL_GL_IMAGE_IO_SURFACE_H_ |
| #define UI_GL_GL_IMAGE_IO_SURFACE_H_ |
| |
| #include <CoreVideo/CVPixelBuffer.h> |
| #include <IOSurface/IOSurface.h> |
| #include <stdint.h> |
| |
| #include "base/mac/scoped_cftyperef.h" |
| #include "base/macros.h" |
| #include "base/threading/thread_checker.h" |
| #include "ui/gfx/buffer_types.h" |
| #include "ui/gfx/generic_shared_memory_id.h" |
| #include "ui/gl/gl_export.h" |
| #include "ui/gl/gl_image.h" |
| |
| #if defined(__OBJC__) |
| @class CALayer; |
| #else |
| typedef void* CALayer; |
| #endif |
| |
| namespace gl { |
| |
| class GL_EXPORT GLImageIOSurface : public GLImage { |
| public: |
| GLImageIOSurface(const gfx::Size& size, unsigned internalformat); |
| |
| bool Initialize(IOSurfaceRef io_surface, |
| gfx::GenericSharedMemoryId io_surface_id, |
| gfx::BufferFormat format); |
| |
| // IOSurfaces coming from video decode are wrapped in a CVPixelBuffer |
| // and may be discarded if the owning CVPixelBuffer is destroyed. This |
| // initialization will ensure that the CVPixelBuffer be retained for the |
| // lifetime of the GLImage. |
| bool InitializeWithCVPixelBuffer(CVPixelBufferRef cv_pixel_buffer, |
| gfx::GenericSharedMemoryId io_surface_id, |
| gfx::BufferFormat format); |
| |
| // Overridden from GLImage: |
| gfx::Size GetSize() override; |
| unsigned GetInternalFormat() override; |
| bool BindTexImage(unsigned target) override; |
| bool BindTexImageWithInternalformat(unsigned target, |
| unsigned internalformat) override; |
| void ReleaseTexImage(unsigned target) override {} |
| bool CopyTexImage(unsigned target) override; |
| bool CopyTexSubImage(unsigned target, |
| const gfx::Point& offset, |
| const gfx::Rect& rect) override; |
| bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget, |
| int z_order, |
| gfx::OverlayTransform transform, |
| const gfx::Rect& bounds_rect, |
| const gfx::RectF& crop_rect) override; |
| void Flush() override {} |
| void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd, |
| uint64_t process_tracing_id, |
| const std::string& dump_name) override; |
| bool EmulatingRGB() const override; |
| |
| gfx::GenericSharedMemoryId io_surface_id() const { return io_surface_id_; } |
| base::ScopedCFTypeRef<IOSurfaceRef> io_surface(); |
| base::ScopedCFTypeRef<CVPixelBufferRef> cv_pixel_buffer(); |
| |
| // Whether checking IOSurfaceIsInUse() will actually provide a meaningful |
| // signal about whether the Window Server is still using the IOSurface. |
| bool CanCheckIOSurfaceIsInUse() const; |
| |
| static unsigned GetInternalFormatForTesting(gfx::BufferFormat format); |
| |
| // Downcasts from |image|. Returns |nullptr| on failure. |
| static GLImageIOSurface* FromGLImage(GLImage* image); |
| |
| protected: |
| ~GLImageIOSurface() override; |
| |
| private: |
| Type GetType() const override; |
| class RGBConverter; |
| |
| const gfx::Size size_; |
| |
| // The "internalformat" exposed to the command buffer, which may not be |
| // "internalformat" requested by the client. |
| const unsigned internalformat_; |
| |
| // The "internalformat" requested by the client. |
| const unsigned client_internalformat_; |
| |
| gfx::BufferFormat format_; |
| base::ScopedCFTypeRef<IOSurfaceRef> io_surface_; |
| base::ScopedCFTypeRef<CVPixelBufferRef> cv_pixel_buffer_; |
| gfx::GenericSharedMemoryId io_surface_id_; |
| base::ThreadChecker thread_checker_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GLImageIOSurface); |
| }; |
| |
| } // namespace gl |
| |
| #endif // UI_GL_GL_IMAGE_IO_SURFACE_H_ |