1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * Copyright (C) 2009 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 29 #include "core/html/canvas/WebGLUniformLocation.h" 30 31 namespace blink { 32 33 PassRefPtrWillBeRawPtr<WebGLUniformLocation> WebGLUniformLocation::create(WebGLProgram* program, GLint location) 34 { 35 return adoptRefWillBeNoop(new WebGLUniformLocation(program, location)); 36 } 37 38 WebGLUniformLocation::WebGLUniformLocation(WebGLProgram* program, GLint location) 39 : m_program(program) 40 , m_location(location) 41 { 42 ASSERT(m_program); 43 m_linkCount = m_program->linkCount(); 44 } 45 46 WebGLProgram* WebGLUniformLocation::program() const 47 { 48 // If the program has been linked again, then this UniformLocation is no 49 // longer valid. 50 if (m_program->linkCount() != m_linkCount) 51 return 0; 52 return m_program.get(); 53 } 54 55 GLint WebGLUniformLocation::location() const 56 { 57 // If the program has been linked again, then this UniformLocation is no 58 // longer valid. 59 ASSERT(m_program->linkCount() == m_linkCount); 60 return m_location; 61 } 62 63 void WebGLUniformLocation::trace(Visitor* visitor) 64 { 65 visitor->trace(m_program); 66 } 67 68 } 69
