gfx/gl/TextureImageEGL.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef TEXTUREIMAGEEGL_H_
   7 #define TEXTUREIMAGEEGL_H_
   8
   9 #include "GLTextureImage.h"
  10
  11 namespace mozilla {
  12 namespace gl {
  13
  14 class TextureImageEGL
  15     : public TextureImage
  16 {
  17 public:
  18     TextureImageEGL(GLuint aTexture,
  19                     const nsIntSize& aSize,
  20                     GLenum aWrapMode,
  21                     ContentType aContentType,
  22                     GLContext* aContext,
  23                     Flags aFlags = TextureImage::NoFlags,
  24                     TextureState aTextureState = Created,
  25                     TextureImage::ImageFormat aImageFormat = gfxImageFormatUnknown);
  26
  27     virtual ~TextureImageEGL();
  28
  29     virtual void GetUpdateRegion(nsIntRegion& aForRegion);
  30
  31     virtual gfxASurface* BeginUpdate(nsIntRegion& aRegion);
  32
  33     virtual void EndUpdate();
  34
  35     virtual bool DirectUpdate(gfxASurface* aSurf, const nsIntRegion& aRegion, const nsIntPoint& aFrom /* = nsIntPoint(0, 0) */);
  36
  37     virtual void BindTexture(GLenum aTextureUnit);
  38
  39     virtual GLuint GetTextureID()
  40     {
  41         // Ensure the texture is allocated before it is used.
  42         if (mTextureState == Created) {
  43             Resize(mSize);
  44         }
  45         return mTexture;
  46     };
  47
  48     virtual bool InUpdate() const { return !!mUpdateSurface; }
  49
  50     virtual void Resize(const nsIntSize& aSize);
  51
  52     bool BindTexImage();
  53
  54     bool ReleaseTexImage();
  55
  56     virtual bool CreateEGLSurface(gfxASurface* aSurface)
  57     {
  58         return false;
  59     }
  60
  61     virtual void DestroyEGLSurface(void);
  62
  63 protected:
  64     typedef gfxImageFormat ImageFormat;
  65
  66     GLContext* mGLContext;
  67
  68     nsIntRect mUpdateRect;
  69     ImageFormat mUpdateFormat;
  70     nsRefPtr<gfxASurface> mUpdateSurface;
  71     EGLImage mEGLImage;
  72     GLuint mTexture;
  73     EGLSurface mSurface;
  74     EGLConfig mConfig;
  75     TextureState mTextureState;
  76
  77     bool mBound;
  78
  79     virtual void ApplyFilter();
  80 };
  81
  82
  83 }
  84 }
  85
  86 #endif // TEXTUREIMAGEEGL_H_