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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #include "core/html/canvas/ANGLEInstancedArrays.h"
     34 
     35 #include "core/html/canvas/WebGLRenderingContextBase.h"
     36 
     37 namespace blink {
     38 
     39 ANGLEInstancedArrays::ANGLEInstancedArrays(WebGLRenderingContextBase* context)
     40     : WebGLExtension(context)
     41 {
     42     context->extensionsUtil()->ensureExtensionEnabled("GL_ANGLE_instanced_arrays");
     43 }
     44 
     45 ANGLEInstancedArrays::~ANGLEInstancedArrays()
     46 {
     47 }
     48 
     49 WebGLExtensionName ANGLEInstancedArrays::name() const
     50 {
     51     return ANGLEInstancedArraysName;
     52 }
     53 
     54 PassRefPtrWillBeRawPtr<ANGLEInstancedArrays> ANGLEInstancedArrays::create(WebGLRenderingContextBase* context)
     55 {
     56     return adoptRefWillBeNoop(new ANGLEInstancedArrays(context));
     57 }
     58 
     59 bool ANGLEInstancedArrays::supported(WebGLRenderingContextBase* context)
     60 {
     61     return context->extensionsUtil()->supportsExtension("GL_ANGLE_instanced_arrays");
     62 }
     63 
     64 const char* ANGLEInstancedArrays::extensionName()
     65 {
     66     return "ANGLE_instanced_arrays";
     67 }
     68 
     69 void ANGLEInstancedArrays::drawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
     70 {
     71     if (isLost())
     72         return;
     73 
     74     m_context->drawArraysInstancedANGLE(mode, first, count, primcount);
     75 }
     76 
     77 void ANGLEInstancedArrays::drawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, long long offset, GLsizei primcount)
     78 {
     79     if (isLost())
     80         return;
     81 
     82     m_context->drawElementsInstancedANGLE(mode, count, type, offset, primcount);
     83 }
     84 
     85 void ANGLEInstancedArrays::vertexAttribDivisorANGLE(GLuint index, GLuint divisor)
     86 {
     87     if (isLost())
     88         return;
     89 
     90     m_context->vertexAttribDivisorANGLE(index, divisor);
     91 }
     92 
     93 } // namespace blink
     94