1 files changed, 83 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/renderer/gl/BlitGL.h b/gfx/angle/src/libANGLE/renderer/gl/BlitGL.h
new file mode 100755
index 000000000..b306ede29
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/gl/BlitGL.h
@@ -0,0 +1,83 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// BlitGL.h: Defines the BlitGL class, a helper for blitting textures
+
+#ifndef LIBANGLE_RENDERER_GL_BLITGL_H_
+#define LIBANGLE_RENDERER_GL_BLITGL_H_
+
+#include "angle_gl.h"
+#include "common/angleutils.h"
+#include "libANGLE/angletypes.h"
+#include "libANGLE/Error.h"
+
+namespace gl
+{
+class Framebuffer;
+}
+
+namespace rx
+{
+
+class FramebufferGL;
+class FunctionsGL;
+class StateManagerGL;
+struct WorkaroundsGL;
+
+class BlitGL : public angle::NonCopyable
+{
+  public:
+    BlitGL(const FunctionsGL *functions,
+           const WorkaroundsGL &workarounds,
+           StateManagerGL *stateManager);
+    ~BlitGL();
+
+    gl::Error copyImageToLUMAWorkaroundTexture(GLuint texture,
+                                               GLenum textureType,
+                                               GLenum target,
+                                               GLenum lumaFormat,
+                                               size_t level,
+                                               const gl::Rectangle &sourceArea,
+                                               GLenum internalFormat,
+                                               const gl::Framebuffer *source);
+    gl::Error copySubImageToLUMAWorkaroundTexture(GLuint texture,
+                                                  GLenum textureType,
+                                                  GLenum target,
+                                                  GLenum lumaFormat,
+                                                  size_t level,
+                                                  const gl::Offset &destOffset,
+                                                  const gl::Rectangle &sourceArea,
+                                                  const gl::Framebuffer *source);
+
+    gl::Error blitColorBufferWithShader(const gl::Framebuffer *source,
+                                        const gl::Framebuffer *dest,
+                                        const gl::Rectangle &sourceArea,
+                                        const gl::Rectangle &destArea,
+                                        GLenum filter);
+
+    gl::Error initializeResources();
+
+  private:
+    void orphanScratchTextures();
+    void setScratchTextureParameter(GLenum param, GLenum value);
+
+    const FunctionsGL *mFunctions;
+    const WorkaroundsGL &mWorkarounds;
+    StateManagerGL *mStateManager;
+
+    GLuint mBlitProgram;
+    GLint mSourceTextureLocation;
+    GLint mScaleLocation;
+    GLint mOffsetLocation;
+
+    GLuint mScratchTextures[2];
+    GLuint mScratchFBO;
+
+    GLuint mVAO;
+};
+}
+
+#endif  // LIBANGLE_RENDERER_GL_BLITGL_H_