mirror of https://github.com/axmolengine/axmol.git
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
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//
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// Copyright 2011 Jeff Lamarche
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//
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// Redistribution and use in source and binary forms, with or without modification, are permitted provided
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// that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and
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// the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
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// and the following disclaimer in the documentation and/or other materials provided with the
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// distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT ``AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT
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// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//
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// Adapted for cocos2d http://www.cocos2d-iphone.org
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#ifndef __CCGLPROGRAM_H__
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#define __CCGLPROGRAM_H__
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#include "ccMacros.h"
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#include "CCObject.h"
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NS_CC_BEGIN
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enum {
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kCCVertexAttrib_Position,
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kCCVertexAttrib_Color,
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kCCVertexAttrib_TexCoords,
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kCCVertexAttrib_MAX,
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};
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enum {
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kCCUniformMVPMatrix,
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kCCUniformSampler,
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kCCUniform_MAX,
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};
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#define kCCShader_PositionTextureColor "ShaderPositionTextureColor"
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#define kCCShader_PositionTextureColorAlphaTest "ShaderPositionTextureColorAlphaTest"
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#define kCCShader_PositionColor "ShaderPositionColor"
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#define kCCShader_PositionTexture "ShaderPositionTexture"
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#define kCCShader_PositionTexture_uColor "ShaderPositionTexture_uColor"
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#define kCCShader_PositionTextureA8Color "ShaderPositionTextureA8Color"
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// uniform names
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#define kCCUniformMVPMatrix_s "u_MVPMatrix"
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#define kCCUniformSampler_s "u_texture"
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#define kCCUniformAlphaTestValue "u_alpha_value"
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// Attribute names
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#define kCCAttributeNameColor "a_color"
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#define kCCAttributeNamePosition "a_position"
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#define kCCAttributeNameTexCoord "a_texCoord"
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typedef void (*GLInfoFunction)(GLuint program,
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GLenum pname,
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GLint* params);
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typedef void (*GLLogFunction) (GLuint program,
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GLsizei bufsize,
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GLsizei* length,
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GLchar* infolog);
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/** CCGLProgram
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Class that implements a glProgram
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*/
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class CCGLProgram : public CCObject
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{
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public:
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CCGLProgram();
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virtual ~CCGLProgram();
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bool initWithVertexShaderFilename(const char* vShaderFilename, const char* fShaderFilename);
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void addAttribute(const char* attributeName, GLuint index);
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bool link();
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void use();
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/* It will create 3 uniforms:
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- kCCUniformPMatrix
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- kCCUniformMVMatrix
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- kCCUniformSampler
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And it will bind "kCCUniformSampler" to 0
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@since v2.0.0
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*/
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void updateUniforms();
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const char* vertexShaderLog();
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const char* fragmentShaderLog();
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const char* programLog();
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private:
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const char* description();
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bool compileShader(GLuint * shader, GLenum type, const char* file);
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const char* logForOpenGLObject(GLuint object, GLInfoFunction infoFunc, GLLogFunction logFunc);
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public:
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GLuint program_;
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GLuint vertShader_;
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GLuint fragShader_;
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GLint uniforms_[kCCUniform_MAX];
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};
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NS_CC_END
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#endif /* __CCGLPROGRAM_H__ */
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