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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 WebCore {
     38 
     39 ANGLEInstancedArrays::ANGLEInstancedArrays(WebGLRenderingContextBase* context)
     40     : WebGLExtension(context)
     41 {
     42     ScriptWrappable::init(this);
     43     context->extensionsUtil()->ensureExtensionEnabled("GL_ANGLE_instanced_arrays");
     44 }
     45 
     46 ANGLEInstancedArrays::~ANGLEInstancedArrays()
     47 {
     48 }
     49 
     50 WebGLExtensionName ANGLEInstancedArrays::name() const
     51 {
     52     return ANGLEInstancedArraysName;
     53 }
     54 
     55 PassRefPtr<ANGLEInstancedArrays> ANGLEInstancedArrays::create(WebGLRenderingContextBase* context)
     56 {
     57     return adoptRef(new ANGLEInstancedArrays(context));
     58 }
     59 
     60 bool ANGLEInstancedArrays::supported(WebGLRenderingContextBase* context)
     61 {
     62     return context->extensionsUtil()->supportsExtension("GL_ANGLE_instanced_arrays");
     63 }
     64 
     65 const char* ANGLEInstancedArrays::extensionName()
     66 {
     67     return "ANGLE_instanced_arrays";
     68 }
     69 
     70 void ANGLEInstancedArrays::drawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
     71 {
     72     if (isLost())
     73         return;
     74 
     75     m_context->drawArraysInstancedANGLE(mode, first, count, primcount);
     76 }
     77 
     78 void ANGLEInstancedArrays::drawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, long long offset, GLsizei primcount)
     79 {
     80     if (isLost())
     81         return;
     82 
     83     m_context->drawElementsInstancedANGLE(mode, count, type, offset, primcount);
     84 }
     85 
     86 void ANGLEInstancedArrays::vertexAttribDivisorANGLE(GLuint index, GLuint divisor)
     87 {
     88     if (isLost())
     89         return;
     90 
     91     m_context->vertexAttribDivisorANGLE(index, divisor);
     92 }
     93 
     94 } // namespace WebCore
     95