ui/gl/gl_image_io_surface.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GL_GL_IMAGE_IO_SURFACE_H_
   6 #define UI_GL_GL_IMAGE_IO_SURFACE_H_
   7
   8 #include <IOSurface/IOSurface.h>
   9
  10 #include "base/mac/scoped_cftyperef.h"
  11 #include "base/threading/thread_checker.h"
  12 #include "ui/gfx/gpu_memory_buffer.h"
  13 #include "ui/gl/gl_image.h"
  14
  15 #if defined(__OBJC__)
  16 @class CALayer;
  17 #else
  18 typedef void* CALayer;
  19 #endif
  20
  21 namespace gfx {
  22
  23 class GL_EXPORT GLImageIOSurface : public GLImage {
  24  public:
  25   GLImageIOSurface(const gfx::Size& size, unsigned internalformat);
  26
  27   bool Initialize(IOSurfaceRef io_surface, BufferFormat format);
  28
  29   // Overridden from GLImage:
  30   void Destroy(bool have_context) override;
  31   gfx::Size GetSize() override;
  32   unsigned GetInternalFormat() override;
  33   bool BindTexImage(unsigned target) override;
  34   void ReleaseTexImage(unsigned target) override {}
  35   bool CopyTexSubImage(unsigned target,
  36                        const Point& offset,
  37                        const Rect& rect) override;
  38   void WillUseTexImage() override {}
  39   void DidUseTexImage() override {}
  40   void WillModifyTexImage() override {}
  41   void DidModifyTexImage() override {}
  42   bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
  43                             int z_order,
  44                             OverlayTransform transform,
  45                             const Rect& bounds_rect,
  46                             const RectF& crop_rect) override;
  47
  48   static void SetLayerForWidget(gfx::AcceleratedWidget widget,
  49                                 CALayer* layer);
  50
  51  protected:
  52   ~GLImageIOSurface() override;
  53
  54  private:
  55   const gfx::Size size_;
  56   const unsigned internalformat_;
  57   BufferFormat format_;
  58   base::ScopedCFTypeRef<IOSurfaceRef> io_surface_;
  59   base::ThreadChecker thread_checker_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(GLImageIOSurface);
  62 };
  63
  64 }  // namespace gfx
  65
  66 #endif  // UI_GL_GL_IMAGE_IO_SURFACE_H_