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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 // This file implements the GLContextWGL and PbufferGLContext classes. | 5 // This file implements the GLContextWGL and PbufferGLContext classes. |
6 | 6 |
7 #include "ui/gl/gl_context_wgl.h" | 7 #include "ui/gl/gl_context_wgl.h" |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/trace_event/trace_event.h" | 10 #include "base/trace_event/trace_event.h" |
11 #include "ui/gl/gl_bindings.h" | 11 #include "ui/gl/gl_bindings.h" |
12 #include "ui/gl/gl_implementation.h" | 12 #include "ui/gl/gl_implementation.h" |
13 #include "ui/gl/gl_surface_wgl.h" | 13 #include "ui/gl/gl_surface_wgl.h" |
14 | 14 |
15 namespace gfx { | 15 namespace gfx { |
16 | 16 |
17 GLContextWGL::GLContextWGL(GLShareGroup* share_group) | 17 GLContextWGL::GLContextWGL(GLShareGroup* share_group) |
18 : GLContextReal(share_group), | 18 : GLContextReal(share_group), context_(NULL) { |
19 context_(NULL) { | |
20 } | |
21 | |
22 GLContextWGL::~GLContextWGL() { | |
23 Destroy(); | |
24 } | |
25 | |
26 std::string GLContextWGL::GetExtensions() { | |
27 const char* extensions = NULL; | |
28 if (g_driver_wgl.fn.wglGetExtensionsStringARBFn) | |
29 extensions = wglGetExtensionsStringARB(GLSurfaceWGL::GetDisplayDC()); | |
30 else if (g_driver_wgl.fn.wglGetExtensionsStringEXTFn) | |
31 extensions = wglGetExtensionsStringEXT(); | |
32 | |
33 if (extensions) | |
34 return GLContext::GetExtensions() + " " + extensions; | |
35 | |
36 return GLContext::GetExtensions(); | |
37 } | 19 } |
38 | 20 |
39 bool GLContextWGL::Initialize( | 21 bool GLContextWGL::Initialize( |
40 GLSurface* compatible_surface, GpuPreference gpu_preference) { | 22 GLSurface* compatible_surface, GpuPreference gpu_preference) { |
41 // Get the handle of another initialized context in the share group _before_ | 23 // Get the handle of another initialized context in the share group _before_ |
42 // setting context_. Otherwise this context will be considered initialized | 24 // setting context_. Otherwise this context will be considered initialized |
43 // and could potentially be returned by GetHandle. | 25 // and could potentially be returned by GetHandle. |
44 HGLRC share_handle = static_cast<HGLRC>(share_group()->GetHandle()); | 26 HGLRC share_handle = static_cast<HGLRC>(share_group()->GetHandle()); |
45 | 27 |
46 context_ = wglCreateContext( | 28 context_ = wglCreateContext( |
(...skipping 88 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
135 DCHECK(IsCurrent(NULL)); | 117 DCHECK(IsCurrent(NULL)); |
136 if (gfx::g_driver_wgl.ext.b_WGL_EXT_swap_control) { | 118 if (gfx::g_driver_wgl.ext.b_WGL_EXT_swap_control) { |
137 wglSwapIntervalEXT(interval); | 119 wglSwapIntervalEXT(interval); |
138 } else { | 120 } else { |
139 LOG(WARNING) << | 121 LOG(WARNING) << |
140 "Could not disable vsync: driver does not " | 122 "Could not disable vsync: driver does not " |
141 "support WGL_EXT_swap_control"; | 123 "support WGL_EXT_swap_control"; |
142 } | 124 } |
143 } | 125 } |
144 | 126 |
127 std::string GLContextWGL::GetExtensions() { | |
128 const char* extensions = NULL; | |
129 if (g_driver_wgl.fn.wglGetExtensionsStringARBFn) | |
130 extensions = wglGetExtensionsStringARB(GLSurfaceWGL::GetDisplayDC()); | |
131 else if (g_driver_wgl.fn.wglGetExtensionsStringEXTFn) | |
132 extensions = wglGetExtensionsStringEXT(); | |
133 | |
134 if (extensions) | |
135 return GLContext::GetExtensions() + " " + extensions; | |
dcheng
2015/05/02 01:15:08
I wonder how much code bloat we have from string's
| |
136 | |
137 return GLContext::GetExtensions(); | |
138 } | |
139 | |
140 GLContextWGL::~GLContextWGL() { | |
141 Destroy(); | |
142 } | |
143 | |
145 } // namespace gfx | 144 } // namespace gfx |
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