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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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72 if (n != 1) { | 72 if (n != 1) { |
73 m_context->synthesizeGLError(GL_INVALID_VALUE, "drawBuffersWEBGL", "
more than one buffer"); | 73 m_context->synthesizeGLError(GL_INVALID_VALUE, "drawBuffersWEBGL", "
more than one buffer"); |
74 return; | 74 return; |
75 } | 75 } |
76 if (bufs[0] != GL_BACK && bufs[0] != GL_NONE) { | 76 if (bufs[0] != GL_BACK && bufs[0] != GL_NONE) { |
77 m_context->synthesizeGLError(GL_INVALID_OPERATION, "drawBuffersWEBGL
", "BACK or NONE"); | 77 m_context->synthesizeGLError(GL_INVALID_OPERATION, "drawBuffersWEBGL
", "BACK or NONE"); |
78 return; | 78 return; |
79 } | 79 } |
80 // Because the backbuffer is simulated on all current WebKit ports, we n
eed to change BACK to COLOR_ATTACHMENT0. | 80 // Because the backbuffer is simulated on all current WebKit ports, we n
eed to change BACK to COLOR_ATTACHMENT0. |
81 GLenum value = (bufs[0] == GL_BACK) ? GL_COLOR_ATTACHMENT0 : GL_NONE; | 81 GLenum value = (bufs[0] == GL_BACK) ? GL_COLOR_ATTACHMENT0 : GL_NONE; |
82 m_context->webGraphicsContext3D()->drawBuffersEXT(1, &value); | 82 m_context->webContext()->drawBuffersEXT(1, &value); |
83 m_context->setBackDrawBuffer(bufs[0]); | 83 m_context->setBackDrawBuffer(bufs[0]); |
84 } else { | 84 } else { |
85 if (n > m_context->maxDrawBuffers()) { | 85 if (n > m_context->maxDrawBuffers()) { |
86 m_context->synthesizeGLError(GL_INVALID_VALUE, "drawBuffersWEBGL", "
more than max draw buffers"); | 86 m_context->synthesizeGLError(GL_INVALID_VALUE, "drawBuffersWEBGL", "
more than max draw buffers"); |
87 return; | 87 return; |
88 } | 88 } |
89 for (GLsizei i = 0; i < n; ++i) { | 89 for (GLsizei i = 0; i < n; ++i) { |
90 if (bufs[i] != GL_NONE && bufs[i] != static_cast<GLenum>(GL_COLOR_AT
TACHMENT0_EXT + i)) { | 90 if (bufs[i] != GL_NONE && bufs[i] != static_cast<GLenum>(GL_COLOR_AT
TACHMENT0_EXT + i)) { |
91 m_context->synthesizeGLError(GL_INVALID_OPERATION, "drawBuffersW
EBGL", "COLOR_ATTACHMENTi_EXT or NONE"); | 91 m_context->synthesizeGLError(GL_INVALID_OPERATION, "drawBuffersW
EBGL", "COLOR_ATTACHMENTi_EXT or NONE"); |
92 return; | 92 return; |
93 } | 93 } |
94 } | 94 } |
95 m_context->m_framebufferBinding->drawBuffers(buffers); | 95 m_context->m_framebufferBinding->drawBuffers(buffers); |
96 } | 96 } |
97 } | 97 } |
98 | 98 |
99 // static | 99 // static |
100 bool WebGLDrawBuffers::satisfiesWebGLRequirements(WebGLRenderingContextBase* web
glContext) | 100 bool WebGLDrawBuffers::satisfiesWebGLRequirements(WebGLRenderingContextBase* web
glContext) |
101 { | 101 { |
102 blink::WebGraphicsContext3D* context = webglContext->webGraphicsContext3D(); | 102 blink::WebGraphicsContext3D* context = webglContext->webContext(); |
103 Extensions3DUtil* extensionsUtil = webglContext->extensionsUtil(); | 103 Extensions3DUtil* extensionsUtil = webglContext->extensionsUtil(); |
104 | 104 |
105 // This is called after we make sure GL_EXT_draw_buffers is supported. | 105 // This is called after we make sure GL_EXT_draw_buffers is supported. |
106 GLint maxDrawBuffers = 0; | 106 GLint maxDrawBuffers = 0; |
107 GLint maxColorAttachments = 0; | 107 GLint maxColorAttachments = 0; |
108 context->getIntegerv(GL_MAX_DRAW_BUFFERS_EXT, &maxDrawBuffers); | 108 context->getIntegerv(GL_MAX_DRAW_BUFFERS_EXT, &maxDrawBuffers); |
109 context->getIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &maxColorAttachments); | 109 context->getIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &maxColorAttachments); |
110 if (maxDrawBuffers < 4 || maxColorAttachments < 4) | 110 if (maxDrawBuffers < 4 || maxColorAttachments < 4) |
111 return false; | 111 return false; |
112 | 112 |
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171 if (supportsDepth) | 171 if (supportsDepth) |
172 context->deleteTexture(depth); | 172 context->deleteTexture(depth); |
173 if (supportsDepthStencil) | 173 if (supportsDepthStencil) |
174 context->deleteTexture(depthStencil); | 174 context->deleteTexture(depthStencil); |
175 for (size_t i = 0; i < colors.size(); ++i) | 175 for (size_t i = 0; i < colors.size(); ++i) |
176 context->deleteTexture(colors[i]); | 176 context->deleteTexture(colors[i]); |
177 return ok; | 177 return ok; |
178 } | 178 } |
179 | 179 |
180 } // namespace WebCore | 180 } // namespace WebCore |
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