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 namespace gfx {
  17
  18 class GL_EXPORT GLImageMemory : public GLImage {
  19  public:
  20   GLImageMemory(const gfx::Size& size, unsigned internalformat);
  21
  22   bool Initialize(const unsigned char* memory);
  23
  24   // Overridden from GLImage:
  25   virtual void Destroy(bool have_context) OVERRIDE;
  26   virtual gfx::Size GetSize() OVERRIDE;
  27   virtual bool BindTexImage(unsigned target) OVERRIDE;
  28   virtual void ReleaseTexImage(unsigned target) OVERRIDE {}
  29   virtual bool CopyTexImage(unsigned target) OVERRIDE;
  30   virtual void WillUseTexImage() OVERRIDE;
  31   virtual void DidUseTexImage() OVERRIDE;
  32   virtual void WillModifyTexImage() OVERRIDE {}
  33   virtual void DidModifyTexImage() OVERRIDE {}
  34   virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
  35                                     int z_order,
  36                                     OverlayTransform transform,
  37                                     const Rect& bounds_rect,
  38                                     const RectF& crop_rect) OVERRIDE;
  39
  40  protected:
  41   virtual ~GLImageMemory();
  42
  43   bool HasValidFormat() const;
  44   size_t Bytes() const;
  45
  46  private:
  47   void DoBindTexImage(unsigned target);
  48
  49   const unsigned char* memory_;
  50   const gfx::Size size_;
  51   const unsigned internalformat_;
  52   bool in_use_;
  53   unsigned target_;
  54   bool need_do_bind_tex_image_;
  55 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || \
  56     defined(USE_OZONE)
  57   unsigned egl_texture_id_;
  58   EGLImageKHR egl_image_;
  59 #endif
  60
  61   DISALLOW_COPY_AND_ASSIGN(GLImageMemory);
  62 };
  63
  64 }  // namespace gfx
  65
  66 #endif  // UI_GL_GL_IMAGE_MEMORY_H_