[4744] | 1 | /* |
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[1853] | 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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[1855] | 10 | |
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| 11 | ### File Specific: |
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[5261] | 12 | main-programmer: Benjamin Grauer |
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[1855] | 13 | co-programmer: ... |
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[1853] | 14 | */ |
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| 15 | |
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[3955] | 16 | //#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_ |
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[1853] | 17 | |
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[5261] | 18 | #include "shader.h" |
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[1853] | 19 | |
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[5273] | 20 | #include "compiler.h" |
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[8037] | 21 | //#include <stdio.h> |
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| 22 | #include <fstream> |
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| 23 | |
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[5262] | 24 | #include "debug.h" |
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| 25 | |
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[7193] | 26 | #include "util/loading/resource_manager.h" |
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[5262] | 27 | |
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[5323] | 28 | |
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[8037] | 29 | #ifndef PARSELINELENGTH |
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| 30 | #define PARSELINELENGTH 512 //!< how many chars to read at once |
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[5262] | 31 | #endif |
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| 32 | |
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[1853] | 33 | |
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[9715] | 34 | ObjectListDefinition(Shader); |
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[1856] | 35 | |
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[9806] | 36 | void Shader::Uniform::setV(unsigned int count, float* vv) const |
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| 37 | { |
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| 38 | switch (count) |
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| 39 | { |
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| 40 | case 1: |
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| 41 | glUniform1fv(this->uniform, 1, vv); |
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| 42 | break; |
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| 43 | case 2: |
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| 44 | glUniform2fv(this->uniform, 2, vv); |
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| 45 | break; |
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| 46 | case 3: |
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| 47 | glUniform3fv(this->uniform, 3, vv); |
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| 48 | break; |
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| 49 | case 4: |
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| 50 | glUniform4fv(this->uniform, 4, vv); |
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| 51 | break; |
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| 52 | } |
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| 53 | } |
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| 54 | void Shader::Uniform::setV(unsigned int count, int* vv) const |
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| 55 | { |
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| 56 | switch (count) |
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| 57 | { |
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| 58 | case 1: |
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| 59 | glUniform1iv(this->uniform, 1, vv); |
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| 60 | break; |
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| 61 | case 2: |
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| 62 | glUniform2iv(this->uniform, 2, vv); |
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| 63 | break; |
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| 64 | case 3: |
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| 65 | glUniform3iv(this->uniform, 3, vv); |
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| 66 | break; |
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| 67 | case 4: |
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| 68 | glUniform4iv(this->uniform, 4, vv); |
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| 69 | break; |
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| 70 | } |
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| 71 | } |
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| 72 | |
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| 73 | |
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| 74 | |
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[9818] | 75 | Shader::Shader() |
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| 76 | : data(new ShaderData) |
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| 77 | { |
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| 78 | |
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| 79 | } |
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[9806] | 80 | |
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[3245] | 81 | /** |
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[4838] | 82 | * standard constructor |
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[3245] | 83 | */ |
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[7221] | 84 | Shader::Shader (const std::string& vertexShaderFile, const std::string& fragmentShaderFile) |
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[9818] | 85 | : data(new ShaderData) |
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[3365] | 86 | { |
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[9818] | 87 | if (!Shader::checkShaderAbility()) |
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| 88 | PRINTF(2)("Your system does not support shaders\n"); |
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[9819] | 89 | this->load(vertexShaderFile, fragmentShaderFile); |
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[1853] | 90 | |
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[3543] | 91 | } |
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[5261] | 92 | |
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[9818] | 93 | const Shader* Shader::storedShader = NULL; |
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[5261] | 94 | |
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[9818] | 95 | void Shader::activateShader() const |
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[5261] | 96 | { |
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[9818] | 97 | if (likely (this->getProgram() != 0)) |
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[5262] | 98 | { |
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[9818] | 99 | glUseProgramObjectARB(this->getProgram()); |
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[5317] | 100 | Shader::storedShader = this; |
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| 101 | } |
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[5261] | 102 | } |
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[5266] | 103 | void Shader::deactivateShader() |
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| 104 | { |
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[9806] | 105 | if (storedShader != NULL) |
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| 106 | glUseProgramObjectARB(0); |
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| 107 | Shader::storedShader = NULL; |
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[5266] | 108 | } |
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[5262] | 109 | |
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[5333] | 110 | bool Shader::checkShaderAbility() |
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| 111 | { |
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| 112 | if (GLEW_ARB_shader_objects && |
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| 113 | GLEW_ARB_shading_language_100 && |
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| 114 | GLEW_ARB_vertex_shader && |
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| 115 | GLEW_ARB_fragment_shader) |
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| 116 | return true; |
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| 117 | else |
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| 118 | return false; |
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| 119 | } |
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[5264] | 120 | |
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[5262] | 121 | |
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