ui/gl/gl_image_memory.h

   1 // Copyright 2014 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_MEMORY_H_
   6 #define UI_GL_GL_IMAGE_MEMORY_H_
   7
   8 #include "ui/gl/gl_image.h"
   9
  10 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || \
  11     defined(USE_OZONE)
  12 #include <EGL/egl.h>
  13 #include <EGL/eglext.h>
  14 #endif
  15
  16 #include "ui/gfx/gpu_memory_buffer.h"
  17
  18 namespace gfx {
  19
  20 class GL_EXPORT GLImageMemory : public GLImage {
  21  public:
  22   GLImageMemory(const gfx::Size& size, unsigned internalformat);
  23
  24   static size_t BytesPerPixel(gfx::GpuMemoryBuffer::Format format);
  25
  26   bool Initialize(const unsigned char* memory,
  27                   gfx::GpuMemoryBuffer::Format format);
  28
  29   // Overridden from GLImage:
  30   void Destroy(bool have_context) override;
  31   gfx::Size GetSize() override;
  32   bool BindTexImage(unsigned target) override;
  33   void ReleaseTexImage(unsigned target) override {}
  34   bool CopyTexImage(unsigned target) override;
  35   void WillUseTexImage() override;
  36   void DidUseTexImage() override;
  37   void WillModifyTexImage() override {}
  38   void DidModifyTexImage() override {}
  39   bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
  40                             int z_order,
  41                             OverlayTransform transform,
  42                             const Rect& bounds_rect,
  43                             const RectF& crop_rect) override;
  44
  45  protected:
  46   ~GLImageMemory() override;
  47
  48  private:
  49   void DoBindTexImage(unsigned target);
  50
  51   const gfx::Size size_;
  52   const unsigned internalformat_;
  53   const unsigned char* memory_;
  54   gfx::GpuMemoryBuffer::Format format_;
  55   bool in_use_;
  56   unsigned target_;
  57   bool need_do_bind_tex_image_;
  58 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || \
  59     defined(USE_OZONE)
  60   unsigned egl_texture_id_;
  61   EGLImageKHR egl_image_;
  62 #endif
  63
  64   DISALLOW_COPY_AND_ASSIGN(GLImageMemory);
  65 };
  66
  67 }  // namespace gfx
  68
  69 #endif  // UI_GL_GL_IMAGE_MEMORY_H_