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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "platform/graphics/gpu/Extensions3DUtil.h" | 5 #include "platform/graphics/gpu/Extensions3DUtil.h" |
6 | 6 |
7 #include "gpu/command_buffer/client/gles2_interface.h" | 7 #include "gpu/command_buffer/client/gles2_interface.h" |
8 #include "wtf/PtrUtil.h" | 8 #include "wtf/PtrUtil.h" |
9 #include "wtf/text/CString.h" | 9 #include "wtf/text/CString.h" |
10 #include "wtf/text/StringHash.h" | 10 #include "wtf/text/StringHash.h" |
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31 } | 31 } |
32 | 32 |
33 Extensions3DUtil::Extensions3DUtil(gpu::gles2::GLES2Interface* gl) | 33 Extensions3DUtil::Extensions3DUtil(gpu::gles2::GLES2Interface* gl) |
34 : m_gl(gl), m_isValid(true) {} | 34 : m_gl(gl), m_isValid(true) {} |
35 | 35 |
36 Extensions3DUtil::~Extensions3DUtil() {} | 36 Extensions3DUtil::~Extensions3DUtil() {} |
37 | 37 |
38 void Extensions3DUtil::initializeExtensions() { | 38 void Extensions3DUtil::initializeExtensions() { |
39 if (m_gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR) { | 39 if (m_gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR) { |
40 // If the context is lost don't initialize the extension strings. | 40 // If the context is lost don't initialize the extension strings. |
41 // This will cause supportsExtension, ensureExtensionEnabled, and isExtensio
nEnabled to always return false. | 41 // This will cause supportsExtension, ensureExtensionEnabled, and |
| 42 // isExtensionEnabled to always return false. |
42 m_isValid = false; | 43 m_isValid = false; |
43 return; | 44 return; |
44 } | 45 } |
45 | 46 |
46 String extensionsString(m_gl->GetString(GL_EXTENSIONS)); | 47 String extensionsString(m_gl->GetString(GL_EXTENSIONS)); |
47 splitStringHelper(extensionsString, m_enabledExtensions); | 48 splitStringHelper(extensionsString, m_enabledExtensions); |
48 | 49 |
49 String requestableExtensionsString(m_gl->GetRequestableExtensionsCHROMIUM()); | 50 String requestableExtensionsString(m_gl->GetRequestableExtensionsCHROMIUM()); |
50 splitStringHelper(requestableExtensionsString, m_requestableExtensions); | 51 splitStringHelper(requestableExtensionsString, m_requestableExtensions); |
51 } | 52 } |
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69 } | 70 } |
70 | 71 |
71 bool Extensions3DUtil::isExtensionEnabled(const String& name) { | 72 bool Extensions3DUtil::isExtensionEnabled(const String& name) { |
72 return m_enabledExtensions.contains(name); | 73 return m_enabledExtensions.contains(name); |
73 } | 74 } |
74 | 75 |
75 bool Extensions3DUtil::canUseCopyTextureCHROMIUM(GLenum destTarget, | 76 bool Extensions3DUtil::canUseCopyTextureCHROMIUM(GLenum destTarget, |
76 GLenum destFormat, | 77 GLenum destFormat, |
77 GLenum destType, | 78 GLenum destType, |
78 GLint level) { | 79 GLint level) { |
79 // TODO(zmo): restriction of (RGB || RGBA)/UNSIGNED_BYTE/(Level 0) should be l
ifted when | 80 // TODO(zmo): restriction of (RGB || RGBA)/UNSIGNED_BYTE/(Level 0) should be |
80 // GLES2Interface::CopyTextureCHROMIUM(...) are fully functional. | 81 // lifted when GLES2Interface::CopyTextureCHROMIUM(...) are fully functional. |
81 if (destTarget == GL_TEXTURE_2D && | 82 if (destTarget == GL_TEXTURE_2D && |
82 (destFormat == GL_RGB || destFormat == GL_RGBA) && | 83 (destFormat == GL_RGB || destFormat == GL_RGBA) && |
83 destType == GL_UNSIGNED_BYTE && !level) | 84 destType == GL_UNSIGNED_BYTE && !level) |
84 return true; | 85 return true; |
85 return false; | 86 return false; |
86 } | 87 } |
87 | 88 |
88 } // namespace blink | 89 } // namespace blink |
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