src/content/browser/renderer_host/compositing_iosurface_context_mac.h

   1 // Copyright (c) 2013 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 CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_CONTEXT_MAC_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_CONTEXT_MAC_H_
   7
   8 #import <AppKit/NSOpenGL.h>
   9 #include <OpenGL/OpenGL.h>
  10 #include <map>
  11
  12 #include "base/basictypes.h"
  13 #include "base/lazy_instance.h"
  14 #include "base/mac/scoped_nsobject.h"
  15 #include "base/memory/ref_counted.h"
  16 #include "base/memory/scoped_ptr.h"
  17 #include "content/browser/renderer_host/display_link_mac.h"
  18 #include "ui/gl/scoped_cgl.h"
  19
  20 namespace content {
  21
  22 enum CoreAnimationStatus {
  23   CORE_ANIMATION_DISABLED,
  24   CORE_ANIMATION_ENABLED,
  25 };
  26 CoreAnimationStatus GetCoreAnimationStatus();
  27
  28 class CompositingIOSurfaceShaderPrograms;
  29
  30 class CompositingIOSurfaceContext
  31     : public base::RefCounted<CompositingIOSurfaceContext> {
  32  public:
  33   enum { kOffscreenContextWindowNumber = -2 };
  34
  35   // Get or create a GL context for the specified window with the specified
  36   // surface ordering. Share these GL contexts as much as possible because
  37   // creating and destroying them can be expensive
  38   // http://crbug.com/180463
  39   static scoped_refptr<CompositingIOSurfaceContext> Get(int window_number);
  40
  41   // Mark that all the currently existing GL contexts shouldn't be returned
  42   // anymore by Get, but rather, new contexts should be created. This is
  43   // called as a precaution when unexpected GL errors occur.
  44   static void MarkExistingContextsAsNotShareable();
  45
  46   CompositingIOSurfaceShaderPrograms* shader_program_cache() const {
  47     return shader_program_cache_.get();
  48   }
  49   NSOpenGLContext* nsgl_context() const;
  50   CGLContextObj cgl_context() const { return cgl_context_; }
  51   bool is_vsync_disabled() const { return is_vsync_disabled_; }
  52   int window_number() const { return window_number_; }
  53
  54   bool IsVendorIntel();
  55
  56   DisplayLinkMac* display_link() { return display_link_; }
  57
  58  private:
  59   friend class base::RefCounted<CompositingIOSurfaceContext>;
  60
  61   CompositingIOSurfaceContext(
  62       int window_number,
  63       NSOpenGLContext* nsgl_context,
  64       base::ScopedTypeRef<CGLContextObj> clg_context_strong,
  65       CGLContextObj clg_context,
  66       bool is_vsync_disabled_,
  67       scoped_refptr<DisplayLinkMac> display_link,
  68       scoped_ptr<CompositingIOSurfaceShaderPrograms> shader_program_cache);
  69   ~CompositingIOSurfaceContext();
  70
  71   int window_number_;
  72   base::scoped_nsobject<NSOpenGLContext> nsgl_context_;
  73   base::ScopedTypeRef<CGLContextObj> cgl_context_strong_;
  74   // Weak, backed by |nsgl_context_| or |cgl_context_strong_|.
  75   CGLContextObj cgl_context_;
  76
  77   bool is_vsync_disabled_;
  78   scoped_ptr<CompositingIOSurfaceShaderPrograms> shader_program_cache_;
  79   bool can_be_shared_;
  80
  81   bool initialized_is_intel_;
  82   bool is_intel_;
  83   GLint screen_;
  84
  85   // Display link for getting vsync info.
  86   scoped_refptr<DisplayLinkMac> display_link_;
  87
  88   // The global map from window number and window ordering to
  89   // context data.
  90   typedef std::map<int, CompositingIOSurfaceContext*> WindowMap;
  91   static base::LazyInstance<WindowMap> window_map_;
  92   static WindowMap* window_map();
  93 };
  94
  95 }  // namespace content
  96
  97 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_CONTEXT_MAC_H_