1 /*
2 * Copyright (C) 2011 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
6 * are met:
7 *
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 AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27
28 #include "LoopBlinnShader.h"
29
30 #include "GraphicsContext3D.h"
31
32 namespace WebCore {
33
LoopBlinnShader(GraphicsContext3D * context,unsigned program)34 LoopBlinnShader::LoopBlinnShader(GraphicsContext3D* context, unsigned program)
35 : Shader(context, program)
36 {
37 m_worldViewProjectionLocation = context->getUniformLocation(program, "worldViewProjection");
38 m_positionLocation = context->getAttribLocation(program, "position");
39 m_klmLocation = context->getAttribLocation(program, "klm");
40 }
41
use(unsigned vertexOffset,unsigned klmOffset,const AffineTransform & transform)42 void LoopBlinnShader::use(unsigned vertexOffset, unsigned klmOffset, const AffineTransform& transform)
43 {
44 m_context->useProgram(m_program);
45
46 float matrix[16];
47 affineTo4x4(transform, matrix);
48 m_context->uniformMatrix4fv(m_worldViewProjectionLocation, false /*transpose*/, matrix, 1 /*count*/);
49
50 m_context->vertexAttribPointer(m_positionLocation, 2, GraphicsContext3D::FLOAT, false, 0, vertexOffset);
51 m_context->enableVertexAttribArray(m_positionLocation);
52
53 if (m_klmLocation != -1) {
54 m_context->vertexAttribPointer(m_klmLocation, 3, GraphicsContext3D::FLOAT, false, 0, klmOffset);
55 m_context->enableVertexAttribArray(m_klmLocation);
56 }
57 }
58
59 } // namespace WebCore
60