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1 // Copyright (c) 2012 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 GPU_GLES2_CONFORM_SUPPORT_EGL_DISPLAY_H_
6 #define GPU_GLES2_CONFORM_SUPPORT_EGL_DISPLAY_H_
7 
8 #include <EGL/egl.h>
9 
10 #include "base/memory/scoped_ptr.h"
11 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
12 #include "gpu/command_buffer/client/gpu_control.h"
13 #include "gpu/command_buffer/service/command_buffer_service.h"
14 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
15 #include "gpu/command_buffer/service/gpu_scheduler.h"
16 #include "ui/gfx/native_widget_types.h"
17 #include "ui/gl/gl_context.h"
18 #include "ui/gl/gl_surface.h"
19 
20 namespace gpu {
21 class CommandBufferService;
22 class GpuControl;
23 class GpuScheduler;
24 class TransferBuffer;
25 class TransferBufferManagerInterface;
26 
27 namespace gles2 {
28 class GLES2CmdHelper;
29 class GLES2Implementation;
30 }  // namespace gles2
31 }  // namespace gpu
32 
33 namespace egl {
34 
35 class Config;
36 class Surface;
37 
38 class Display : private gpu::GpuControl {
39  public:
40   explicit Display(EGLNativeDisplayType display_id);
41   virtual ~Display();
42 
SetCreateOffscreen(int width,int height)43   void SetCreateOffscreen(int width, int height) {
44     create_offscreen_ = true;
45     create_offscreen_width_ = width;
46     create_offscreen_height_ = height;
47   }
48 
is_initialized()49   bool is_initialized() const { return is_initialized_; }
50   bool Initialize();
51 
52   // Config routines.
53   bool IsValidConfig(EGLConfig config);
54   bool ChooseConfigs(
55       EGLConfig* configs, EGLint config_size, EGLint* num_config);
56   bool GetConfigs(EGLConfig* configs, EGLint config_size, EGLint* num_config);
57   bool GetConfigAttrib(EGLConfig config, EGLint attribute, EGLint* value);
58 
59   // Surface routines.
60   bool IsValidNativeWindow(EGLNativeWindowType win);
61   bool IsValidSurface(EGLSurface surface);
62   EGLSurface CreateWindowSurface(EGLConfig config,
63                                  EGLNativeWindowType win,
64                                  const EGLint* attrib_list);
65   void DestroySurface(EGLSurface surface);
66   void SwapBuffers(EGLSurface surface);
67 
68   // Context routines.
69   bool IsValidContext(EGLContext ctx);
70   EGLContext CreateContext(EGLConfig config,
71                            EGLContext share_ctx,
72                            const EGLint* attrib_list);
73   void DestroyContext(EGLContext ctx);
74   bool MakeCurrent(EGLSurface draw, EGLSurface read, EGLContext ctx);
75 
76   // GpuControl implementation.
77   virtual gpu::Capabilities GetCapabilities() OVERRIDE;
78   virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(size_t width,
79                                                       size_t height,
80                                                       unsigned internalformat,
81                                                       unsigned usage,
82                                                       int32* id) OVERRIDE;
83   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
84   virtual uint32 InsertSyncPoint() OVERRIDE;
85   virtual uint32 InsertFutureSyncPoint() OVERRIDE;
86   virtual void RetireSyncPoint(uint32 sync_point) OVERRIDE;
87   virtual void SignalSyncPoint(uint32 sync_point,
88                                const base::Closure& callback) OVERRIDE;
89   virtual void SignalQuery(uint32 query,
90                            const base::Closure& callback) OVERRIDE;
91   virtual void SetSurfaceVisible(bool visible) OVERRIDE;
92   virtual void Echo(const base::Closure& callback) OVERRIDE;
93   virtual uint32 CreateStreamTexture(uint32 texture_id) OVERRIDE;
94 
95  private:
96   EGLNativeDisplayType display_id_;
97 
98   bool is_initialized_;
99   bool create_offscreen_;
100   int create_offscreen_width_;
101   int create_offscreen_height_;
102 
103   scoped_ptr<gpu::TransferBufferManagerInterface> transfer_buffer_manager_;
104   scoped_ptr<gpu::CommandBufferService> command_buffer_;
105   scoped_ptr<gpu::GpuScheduler> gpu_scheduler_;
106   scoped_ptr<gpu::gles2::GLES2Decoder> decoder_;
107   scoped_refptr<gfx::GLContext> gl_context_;
108   scoped_refptr<gfx::GLSurface> gl_surface_;
109   scoped_ptr<gpu::gles2::GLES2CmdHelper> gles2_cmd_helper_;
110   scoped_ptr<gpu::TransferBuffer> transfer_buffer_;
111 
112   // TODO(alokp): Support more than one config, surface, and context.
113   scoped_ptr<Config> config_;
114   scoped_ptr<Surface> surface_;
115   scoped_ptr<gpu::gles2::GLES2Implementation> context_;
116 
117   DISALLOW_COPY_AND_ASSIGN(Display);
118 };
119 
120 }  // namespace egl
121 
122 #endif  // GPU_GLES2_CONFORM_SUPPORT_EGL_DISPLAY_H_
123