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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gl/gl_egl_api_implementation.h" | 5 #include "ui/gl/gl_egl_api_implementation.h" |
6 | 6 |
7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
8 #include "base/strings/string_split.h" | 8 #include "base/strings/string_split.h" |
9 #include "base/strings/string_util.h" | 9 #include "base/strings/string_util.h" |
10 #include "ui/gl/gl_context.h" | 10 #include "ui/gl/gl_context.h" |
11 #include "ui/gl/gl_implementation.h" | 11 #include "ui/gl/gl_implementation.h" |
12 | 12 |
13 namespace gl { | 13 namespace gl { |
14 | 14 |
| 15 namespace { |
| 16 |
| 17 void GL_BINDING_CALL MarshalClearDepthToClearDepthf(GLclampd depth) { |
| 18 glClearDepthf(static_cast<GLclampf>(depth)); |
| 19 } |
| 20 |
| 21 void GL_BINDING_CALL MarshalDepthRangeToDepthRangef(GLclampd z_near, |
| 22 GLclampd z_far) { |
| 23 glDepthRangef(static_cast<GLclampf>(z_near), static_cast<GLclampf>(z_far)); |
| 24 } |
| 25 |
| 26 } // namespace |
| 27 |
15 RealEGLApi* g_real_egl; | 28 RealEGLApi* g_real_egl; |
16 | 29 |
17 void InitializeStaticGLBindingsEGL() { | 30 void InitializeStaticGLBindingsEGL() { |
18 g_driver_egl.InitializeStaticBindings(); | 31 g_driver_egl.InitializeStaticBindings(); |
19 if (!g_real_egl) { | 32 if (!g_real_egl) { |
20 g_real_egl = new RealEGLApi(); | 33 g_real_egl = new RealEGLApi(); |
21 } | 34 } |
22 g_real_egl->Initialize(&g_driver_egl); | 35 g_real_egl->Initialize(&g_driver_egl); |
23 g_current_egl_context = g_real_egl; | 36 g_current_egl_context = g_real_egl; |
24 g_driver_egl.InitializeExtensionBindings(); | 37 g_driver_egl.InitializeExtensionBindings(); |
| 38 |
| 39 // These two functions take single precision float rather than double |
| 40 // precision float parameters in GLES. |
| 41 ::gl::g_driver_gl.fn.glClearDepthFn = MarshalClearDepthToClearDepthf; |
| 42 ::gl::g_driver_gl.fn.glDepthRangeFn = MarshalDepthRangeToDepthRangef; |
25 } | 43 } |
26 | 44 |
27 void InitializeDebugGLBindingsEGL() { | 45 void InitializeDebugGLBindingsEGL() { |
28 g_driver_egl.InitializeDebugBindings(); | 46 g_driver_egl.InitializeDebugBindings(); |
29 } | 47 } |
30 | 48 |
31 void ClearGLBindingsEGL() { | 49 void ClearGLBindingsEGL() { |
32 if (g_real_egl) { | 50 if (g_real_egl) { |
33 delete g_real_egl; | 51 delete g_real_egl; |
34 g_real_egl = NULL; | 52 g_real_egl = NULL; |
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105 if (vendor) | 123 if (vendor) |
106 info->vendor = vendor; | 124 info->vendor = vendor; |
107 if (version) | 125 if (version) |
108 info->version = version; | 126 info->version = version; |
109 if (extensions) | 127 if (extensions) |
110 info->extensions = extensions; | 128 info->extensions = extensions; |
111 return true; | 129 return true; |
112 } | 130 } |
113 | 131 |
114 } // namespace gl | 132 } // namespace gl |
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