Aura: Browser-side changes for Composite-To-Mailbox

cc/gl_renderer.h

 // Copyright 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_GL_RENDERER_H_
 #define CC_GL_RENDERER_H_
 
+#include <queue>
+#include <vector>
+
 #include "cc/cc_export.h"
 #include "cc/checkerboard_draw_quad.h"
 #include "cc/debug_border_draw_quad.h"
 #include "cc/direct_renderer.h"
 #include "cc/gl_renderer_draw_cache.h"
 #include "cc/io_surface_draw_quad.h"
 #include "cc/output_surface.h"
 #include "cc/render_pass_draw_quad.h"
 #include "cc/renderer.h"
 #include "cc/solid_color_draw_quad.h"
@@ skipping 20 matching lines @@
     static scoped_ptr<GLRenderer> create(RendererClient*, OutputSurface*, ResourceProvider*);
 
     virtual ~GLRenderer();
 
     virtual const RendererCapabilities& capabilities() const OVERRIDE;
 
     WebKit::WebGraphicsContext3D* context();
 
     virtual void viewportChanged() OVERRIDE;
 
+    virtual void receiveCompositorFrameAck(const CompositorFrameAck&) OVERRIDE;
+
     // waits for rendering to finish
     virtual void finish() OVERRIDE;
 
     virtual void doNoOp() OVERRIDE;
     // puts backbuffer onscreen
     virtual bool swapBuffers() OVERRIDE;
 
     virtual void getFramebufferPixels(void *pixels, const gfx::Rect&) OVERRIDE;
 
     virtual bool isContextLost() OVERRIDE;
@@ skipping 161 matching lines @@
 
     gfx::Rect m_swapBufferRect;
     gfx::Rect m_scissorRect;
     bool m_isViewportChanged;
     bool m_isBackbufferDiscarded;
     bool m_discardBackbufferWhenNotVisible;
     bool m_isUsingBindUniform;
     bool m_visible;
     bool m_isScissorEnabled;
     bool m_blendShadow;
+    bool m_renderToMailbox;
     unsigned m_programShadow;
     TexturedQuadDrawCache m_drawCache;
 
+    struct MailboxTexture

[danakj, 2013/01/18 01:01:41]

considering that we're going to have a TextureMailbox class in cc/ soon
(https://codereview.chromium.org/11888010/) I think using a different or more
verbose name here would be super nice.

TransferableFrame?

[no sievers, 2013/02/06 23:36:00]

Done.

+    {
+        MailboxTexture()
+            : textureId(0) {}
+
+        MailboxTexture(uint32 textureId,
+                       const Mailbox& mailbox,
+                       const gfx::Size& size)
+            : textureId(textureId),
+              mailbox(mailbox),
+              size(size) {}
+
+        uint32 textureId;
+        Mailbox mailbox;
+        gfx::Size size;
+    };
+    MailboxTexture m_currentBacking;
+    std::vector<MailboxTexture> m_pendingFrames;
+    std::queue<MailboxTexture> m_returnedTextures;
+
     scoped_ptr<ResourceProvider::ScopedWriteLockGL> m_currentFramebufferLock;
 
     DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };
 
 
 // Setting DEBUG_GL_CALLS to 1 will call glGetError() after almost every GL
 // call made by the compositor. Useful for debugging rendering issues but
 // will significantly degrade performance.
 #define DEBUG_GL_CALLS 0
 
 #if DEBUG_GL_CALLS && !defined(NDEBUG)
 #define GLC(context, x) (x, GLRenderer::debugGLCall(&*context, #x, __FILE__, __LINE__))
 #else
 #define GLC(context, x) (x)
 #endif
 
 
 }
 
 #endif  // CC_GL_RENDERER_H_