[395] | 1 | // Copyright (C) 2012-2015 ChaosForge Ltd
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| 2 | // http://chaosforge.org/
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| 3 | //
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| 4 | // This file is part of Nova libraries.
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| 5 | // For conditions of distribution and use, see copying.txt file in root folder.
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[35] | 6 |
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| 7 | #include "nv/gl/gl_enum.hh"
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| 8 |
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| 9 | #include "nv/lib/gl.hh"
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| 10 |
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| 11 | using namespace nv;
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| 12 |
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[331] | 13 | unsigned int nv::texture_type_to_enum( texture_type type )
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| 14 | {
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| 15 | switch( type )
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| 16 | {
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[463] | 17 | case TEXTURE_1D : return GL_TEXTURE_1D;
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| 18 | case TEXTURE_2D : return GL_TEXTURE_2D;
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| 19 | case TEXTURE_RECT : return GL_TEXTURE_RECTANGLE;
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| 20 | case TEXTURE_3D : return GL_TEXTURE_3D;
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| 21 | case TEXTURE_CUBE : return GL_TEXTURE_CUBE_MAP;
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| 22 | case TEXTURE_1D_ARRAY: return GL_TEXTURE_1D_ARRAY;
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| 23 | case TEXTURE_2D_ARRAY: return GL_TEXTURE_2D_ARRAY;
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[331] | 24 | NV_RETURN_COVERED_DEFAULT( 0 );
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| 25 | }
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| 26 | }
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| 27 |
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[40] | 28 | unsigned int nv::clear_state_buffers_to_mask( clear_state::buffers_type type )
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[35] | 29 | {
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| 30 | unsigned int mask = 0;
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| 31 | if ( (type & clear_state::COLOR_BUFFER) != 0 ) mask |= GL_COLOR_BUFFER_BIT;
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| 32 | if ( (type & clear_state::DEPTH_BUFFER) != 0 ) mask |= GL_DEPTH_BUFFER_BIT;
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| 33 | if ( (type & clear_state::STENCIL_BUFFER) != 0 ) mask |= GL_STENCIL_BUFFER_BIT;
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| 34 | return mask;
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| 35 | }
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| 36 |
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[40] | 37 | unsigned int nv::depth_state_function_to_enum( depth_test::function_type type )
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[35] | 38 | {
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| 39 | switch( type )
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| 40 | {
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| 41 | case depth_test::NEVER : return GL_NEVER;
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| 42 | case depth_test::LESS : return GL_LESS;
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| 43 | case depth_test::EQUAL : return GL_EQUAL;
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| 44 | case depth_test::LESS_OR_EQUAL : return GL_LEQUAL;
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| 45 | case depth_test::GREATER : return GL_GREATER;
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| 46 | case depth_test::NOT_EQUAL : return GL_NOTEQUAL;
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| 47 | case depth_test::GREATER_OR_EQUAL : return GL_GEQUAL;
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| 48 | case depth_test::ALWAYS : return GL_ALWAYS;
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[121] | 49 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 50 | }
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| 51 | }
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| 52 |
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[233] | 53 | unsigned int nv::polygon_mode_fill_to_enum( polygon_mode::fill_type type )
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| 54 | {
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| 55 | switch( type )
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| 56 | {
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| 57 | case polygon_mode::FILL : return GL_FILL;
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| 58 | case polygon_mode::LINE : return GL_LINE;
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| 59 | case polygon_mode::POINT : return GL_POINT;
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| 60 | NV_RETURN_COVERED_DEFAULT( 0 );
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| 61 | }
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| 62 | }
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| 63 |
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| 64 |
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| 65 |
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[40] | 66 | unsigned int nv::blending_factor_to_enum( blending::factor type )
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[35] | 67 | {
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| 68 | switch( type )
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| 69 | {
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| 70 | case blending::ZERO : return GL_ZERO;
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| 71 | case blending::ONE : return GL_ONE;
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| 72 | case blending::SRC_COLOR : return GL_SRC_COLOR;
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| 73 | case blending::ONE_MINUS_SRC_COLOR : return GL_ONE_MINUS_SRC_COLOR;
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| 74 | case blending::DST_COLOR : return GL_DST_COLOR;
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| 75 | case blending::ONE_MINUS_DST_COLOR : return GL_ONE_MINUS_DST_COLOR;
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| 76 | case blending::SRC_ALPHA : return GL_SRC_ALPHA;
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| 77 | case blending::ONE_MINUS_SRC_ALPHA : return GL_ONE_MINUS_SRC_ALPHA;
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| 78 | case blending::DST_ALPHA : return GL_DST_ALPHA;
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| 79 | case blending::ONE_MINUS_DST_ALPHA : return GL_ONE_MINUS_DST_ALPHA;
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| 80 | case blending::CONSTANT_COLOR : return GL_CONSTANT_COLOR;
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| 81 | case blending::ONE_MINUS_CONSTANT_COLOR: return GL_ONE_MINUS_CONSTANT_COLOR;
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| 82 | case blending::CONSTANT_ALPHA : return GL_CONSTANT_ALPHA;
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| 83 | case blending::ONE_MINUS_CONSTANT_ALPHA: return GL_ONE_MINUS_CONSTANT_ALPHA;
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| 84 | case blending::SRC_ALPHA_SATURATE : return GL_SRC_ALPHA_SATURATE;
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[121] | 85 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 86 | }
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| 87 | }
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| 88 |
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[40] | 89 | unsigned int nv::blending_equation_to_enum( blending::equation type )
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[35] | 90 | {
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| 91 | switch( type )
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| 92 | {
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| 93 | case blending::ADD : return GL_FUNC_ADD;
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| 94 | case blending::SUBTRACT : return GL_FUNC_SUBTRACT;
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| 95 | case blending::REVERSE_SUBTRACT : return GL_FUNC_REVERSE_SUBTRACT;
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| 96 | case blending::MINIMUM : return GL_MIN;
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| 97 | case blending::MAXIMUM : return GL_MAX;
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[121] | 98 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 99 | }
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| 100 | }
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| 101 |
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[40] | 102 | unsigned int nv::culling_face_type_to_enum( culling::face_type type )
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[35] | 103 | {
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| 104 | switch( type )
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| 105 | {
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| 106 | case culling::FRONT : return GL_FRONT;
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| 107 | case culling::BACK : return GL_BACK;
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| 108 | case culling::FRONT_AND_BACK : return GL_FRONT_AND_BACK;
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[121] | 109 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 110 | }
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| 111 | }
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| 112 |
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[40] | 113 | unsigned int nv::culling_order_type_to_enum( culling::order_type type )
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[35] | 114 | {
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| 115 | switch( type )
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| 116 | {
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| 117 | case culling::CW : return GL_CW;
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| 118 | case culling::CCW : return GL_CCW;
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[121] | 119 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 120 | }
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| 121 | }
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| 122 |
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[40] | 123 | unsigned int nv::stencil_function_to_enum( stencil_test_face::function_type type )
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[35] | 124 | {
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| 125 | switch( type )
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| 126 | {
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| 127 | case stencil_test_face::NEVER : return GL_NEVER;
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| 128 | case stencil_test_face::LESS : return GL_LESS;
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| 129 | case stencil_test_face::EQUAL : return GL_EQUAL;
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| 130 | case stencil_test_face::LESS_OR_EQUAL : return GL_LEQUAL;
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| 131 | case stencil_test_face::GREATER : return GL_GREATER;
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| 132 | case stencil_test_face::NOT_EQUAL : return GL_NOTEQUAL;
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| 133 | case stencil_test_face::GREATER_OR_EQUAL : return GL_GEQUAL;
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| 134 | case stencil_test_face::ALWAYS : return GL_ALWAYS;
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[121] | 135 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 136 | }
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| 137 | }
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| 138 |
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[40] | 139 | unsigned int nv::stencil_operation_to_enum( stencil_test_face::operation type )
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[35] | 140 | {
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| 141 | switch( type )
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| 142 | {
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| 143 | case stencil_test_face::ZERO : return GL_ZERO;
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| 144 | case stencil_test_face::INVERT : return GL_INVERT;
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| 145 | case stencil_test_face::KEEP : return GL_KEEP;
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| 146 | case stencil_test_face::REPLACE : return GL_REPLACE;
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| 147 | case stencil_test_face::INCREMENT : return GL_INCR;
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| 148 | case stencil_test_face::DECREMENT : return GL_DECR;
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| 149 | case stencil_test_face::INCREMENT_WRAP : return GL_INCR_WRAP;
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| 150 | case stencil_test_face::DECREMENT_WRAP : return GL_DECR_WRAP;
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[121] | 151 | NV_RETURN_COVERED_DEFAULT( 0 );
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[35] | 152 | }
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| 153 | }
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| 154 |
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[42] | 155 | unsigned int nv::buffer_hint_to_enum( buffer_hint hint )
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| 156 | {
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| 157 | switch( hint )
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| 158 | {
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| 159 | case STATIC_DRAW : return GL_STATIC_DRAW;
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| 160 | case STREAM_DRAW : return GL_STREAM_DRAW;
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| 161 | case DYNAMIC_DRAW : return GL_DYNAMIC_DRAW;
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[121] | 162 | NV_RETURN_COVERED_DEFAULT( 0 );
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[42] | 163 | }
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| 164 | }
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| 165 |
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[302] | 166 | unsigned int nv::buffer_type_to_enum( buffer_type type )
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| 167 | {
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| 168 | switch( type )
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| 169 | {
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| 170 | case VERTEX_BUFFER : return GL_ARRAY_BUFFER;
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| 171 | case INDEX_BUFFER : return GL_ELEMENT_ARRAY_BUFFER;
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| 172 | NV_RETURN_COVERED_DEFAULT( 0 );
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| 173 | }
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| 174 | }
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| 175 |
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[292] | 176 | unsigned int nv::image_format_to_enum( pixel_format format )
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[43] | 177 | {
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| 178 | switch( format )
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| 179 | {
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[340] | 180 | case RGB : return GL_RGB;
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| 181 | case RGBA : return GL_RGBA;
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| 182 | case RGB32F : return GL_RGB;
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| 183 | case RGBA32F : return GL_RGBA;
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| 184 | case RGB16F : return GL_RGB;
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| 185 | case RGBA16F : return GL_RGBA;
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[351] | 186 | case BGR : return GL_BGR;
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| 187 | case BGRA : return GL_BGRA;
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[461] | 188 | case RED : return GL_RED;
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[462] | 189 | case DEPTH16 : return GL_DEPTH_COMPONENT;
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| 190 | case DEPTH24 : return GL_DEPTH_COMPONENT;
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| 191 | case DEPTH32 : return GL_DEPTH_COMPONENT;
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[121] | 192 | NV_RETURN_COVERED_DEFAULT( 0 );
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[43] | 193 | }
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| 194 | }
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| 195 |
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[331] | 196 | unsigned int nv::image_format_to_internal_enum( pixel_format format )
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| 197 | {
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| 198 | switch( format )
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| 199 | {
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[340] | 200 | case RGB : return GL_RGB8;
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| 201 | case RGBA : return GL_RGBA8;
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| 202 | case RGB32F : return GL_RGB32F;
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| 203 | case RGBA32F : return GL_RGBA32F;
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| 204 | case RGB16F : return GL_RGBA16F;
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| 205 | case RGBA16F : return GL_RGBA16F;
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[351] | 206 | case BGR : return GL_RGB8;
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| 207 | case BGRA : return GL_RGBA8;
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[461] | 208 | case RED : return 0x8040; // GL_LUMINANCE8; // TODO: change to GL_R8!
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[462] | 209 | case DEPTH16 : return GL_DEPTH_COMPONENT16;
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| 210 | case DEPTH24 : return GL_DEPTH_COMPONENT24;
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| 211 | case DEPTH32: return GL_DEPTH_COMPONENT32;
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[340] | 212 | NV_RETURN_COVERED_DEFAULT( 0 );
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[331] | 213 | }
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| 214 | }
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| 215 |
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| 216 |
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[49] | 217 | unsigned int nv::sampler_filter_to_enum( sampler::filter filter )
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[43] | 218 | {
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| 219 | switch( filter )
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| 220 | {
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[49] | 221 | case sampler::LINEAR : return GL_LINEAR;
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| 222 | case sampler::NEAREST : return GL_NEAREST;
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| 223 | case sampler::NEAREST_MIPMAP_NEAREST : return GL_NEAREST_MIPMAP_NEAREST;
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| 224 | case sampler::LINEAR_MIPMAP_NEAREST : return GL_LINEAR_MIPMAP_NEAREST;
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| 225 | case sampler::NEAREST_MIPMAP_LINEAR : return GL_NEAREST_MIPMAP_LINEAR;
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| 226 | case sampler::LINEAR_MIPMAP_LINEAR : return GL_LINEAR_MIPMAP_LINEAR;
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[121] | 227 | NV_RETURN_COVERED_DEFAULT( 0 );
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[43] | 228 | }
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| 229 | }
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| 230 |
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[49] | 231 | unsigned int nv::sampler_wrap_to_enum( sampler::wrap wrap )
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[43] | 232 | {
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| 233 | switch( wrap )
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| 234 | {
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[49] | 235 | case sampler::CLAMP_TO_EDGE : return GL_CLAMP_TO_EDGE;
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| 236 | case sampler::CLAMP_TO_BORDER : return GL_CLAMP_TO_BORDER;
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| 237 | case sampler::MIRRORED_REPEAT : return GL_MIRRORED_REPEAT;
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| 238 | case sampler::REPEAT : return GL_REPEAT;
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[121] | 239 | NV_RETURN_COVERED_DEFAULT( 0 );
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[43] | 240 | }
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| 241 | }
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| 242 |
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[45] | 243 | unsigned int nv::primitive_to_enum( primitive p )
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| 244 | {
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| 245 | switch( p )
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| 246 | {
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| 247 | case POINTS : return GL_POINTS;
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| 248 | case LINES : return GL_LINES;
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| 249 | case LINE_LOOP : return GL_LINE_LOOP;
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| 250 | case LINE_STRIP : return GL_LINE_STRIP;
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| 251 | case TRIANGLES : return GL_TRIANGLES;
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| 252 | case TRIANGLE_STRIP : return GL_TRIANGLE_STRIP;
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| 253 | case TRIANGLE_FAN : return GL_TRIANGLE_FAN;
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[121] | 254 | NV_RETURN_COVERED_DEFAULT( 0 );
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[45] | 255 | }
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| 256 | }
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[43] | 257 |
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[331] | 258 | unsigned int nv::framebuffer_slot_to_enum( framebuffer_slot slot )
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| 259 | {
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| 260 | switch( slot )
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| 261 | {
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| 262 | case READ_FRAMEBUFFER : return GL_READ_FRAMEBUFFER;
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| 263 | case DRAW_FRAMEBUFFER : return GL_DRAW_FRAMEBUFFER;
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| 264 | case FRAMEBUFFER : return GL_FRAMEBUFFER;
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| 265 | NV_RETURN_COVERED_DEFAULT( 0 );
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| 266 | }
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| 267 | }
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| 268 |
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| 269 |
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| 270 | unsigned int nv::output_slot_to_enum( output_slot slot )
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| 271 | {
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| 272 | switch( slot )
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| 273 | {
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| 274 | case OUTPUT_0 : return GL_COLOR_ATTACHMENT0;
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| 275 | case OUTPUT_1 : return GL_COLOR_ATTACHMENT1;
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| 276 | case OUTPUT_2 : return GL_COLOR_ATTACHMENT2;
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| 277 | case OUTPUT_3 : return GL_COLOR_ATTACHMENT3;
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| 278 | case OUTPUT_4 : return GL_COLOR_ATTACHMENT4;
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| 279 | case OUTPUT_5 : return GL_COLOR_ATTACHMENT5;
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| 280 | case OUTPUT_6 : return GL_COLOR_ATTACHMENT6;
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| 281 | case OUTPUT_7 : return GL_COLOR_ATTACHMENT7;
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| 282 | case OUTPUT_NONE : return 0;
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| 283 | case OUTPUT_FRONT : return GL_FRONT;
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| 284 | case OUTPUT_BACK : return GL_BACK;
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| 285 | NV_RETURN_COVERED_DEFAULT( 0 );
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| 286 | }
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| 287 | }
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| 288 |
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| 289 |
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[70] | 290 | unsigned int nv::datatype_to_gl_enum( datatype type )
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[35] | 291 | {
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| 292 | switch( type )
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| 293 | {
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[44] | 294 | case BYTE : return GL_BYTE;
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| 295 | case UBYTE : return GL_UNSIGNED_BYTE;
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| 296 | case SHORT : return GL_SHORT;
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| 297 | case USHORT : return GL_UNSIGNED_SHORT;
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| 298 | case INT : return GL_INT;
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| 299 | case UINT : return GL_UNSIGNED_INT;
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[35] | 300 | case FLOAT : return GL_FLOAT;
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| 301 | case FLOAT_VECTOR_2 : return GL_FLOAT_VEC2;
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| 302 | case FLOAT_VECTOR_3 : return GL_FLOAT_VEC3;
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| 303 | case FLOAT_VECTOR_4 : return GL_FLOAT_VEC4;
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| 304 | case FLOAT_MATRIX_2 : return GL_FLOAT_MAT2;
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| 305 | case FLOAT_MATRIX_3 : return GL_FLOAT_MAT3;
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| 306 | case FLOAT_MATRIX_4 : return GL_FLOAT_MAT4;
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| 307 | case INT_VECTOR_2 : return GL_INT_VEC2;
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| 308 | case INT_VECTOR_3 : return GL_INT_VEC3;
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| 309 | case INT_VECTOR_4 : return GL_INT_VEC4;
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[68] | 310 | // remove, error or ?
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| 311 | case BYTE_VECTOR_2 : return GL_INT_VEC2;
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| 312 | case BYTE_VECTOR_3 : return GL_INT_VEC3;
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| 313 | case BYTE_VECTOR_4 : return GL_INT_VEC4;
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[350] | 314 | // remove, error or ?
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| 315 | case UBYTE_VECTOR_2: return GL_INT_VEC2;
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| 316 | case UBYTE_VECTOR_3: return GL_INT_VEC3;
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| 317 | case UBYTE_VECTOR_4: return GL_INT_VEC4;
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| 318 | default: return 0; // TODO: throw!
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[35] | 319 | }
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| 320 | }
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| 321 |
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[70] | 322 | nv::datatype nv::gl_enum_to_datatype( unsigned int gl_enum )
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[35] | 323 | {
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| 324 | switch( gl_enum )
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| 325 | {
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[44] | 326 | case GL_BYTE : return BYTE;
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| 327 | case GL_UNSIGNED_BYTE : return UBYTE;
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| 328 | case GL_SHORT : return SHORT;
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| 329 | case GL_UNSIGNED_SHORT : return USHORT;
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| 330 | case GL_INT : return INT;
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| 331 | case GL_UNSIGNED_INT : return UINT;
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| 332 | case GL_FLOAT : return FLOAT;
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| 333 | case GL_FLOAT_VEC2 : return FLOAT_VECTOR_2;
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| 334 | case GL_FLOAT_VEC3 : return FLOAT_VECTOR_3;
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| 335 | case GL_FLOAT_VEC4 : return FLOAT_VECTOR_4;
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| 336 | case GL_FLOAT_MAT2 : return FLOAT_MATRIX_2;
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| 337 | case GL_FLOAT_MAT3 : return FLOAT_MATRIX_3;
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| 338 | case GL_FLOAT_MAT4 : return FLOAT_MATRIX_4;
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| 339 | case GL_INT_VEC2 : return INT_VECTOR_2;
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| 340 | case GL_INT_VEC3 : return INT_VECTOR_3;
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| 341 | case GL_INT_VEC4 : return INT_VECTOR_4;
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[237] | 342 | // TODO: separate types?
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[331] | 343 | case GL_SAMPLER_1D : return INT;
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| 344 | case GL_SAMPLER_2D : return INT;
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| 345 | case GL_SAMPLER_3D : return INT;
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| 346 | case GL_SAMPLER_2D_RECT : return INT;
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| 347 | case GL_SAMPLER_2D_RECT_SHADOW : return INT;
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| 348 | case GL_SAMPLER_CUBE : return INT;
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| 349 | case GL_SAMPLER_1D_SHADOW : return INT;
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| 350 | case GL_SAMPLER_2D_SHADOW : return INT;
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[463] | 351 | case GL_SAMPLER_1D_ARRAY : return INT;
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| 352 | case GL_SAMPLER_2D_ARRAY : return INT;
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| 353 | case GL_SAMPLER_1D_ARRAY_SHADOW: return INT;
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| 354 | case GL_SAMPLER_2D_ARRAY_SHADOW: return INT;
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| 355 | // TODO: implement?
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[237] | 356 | // case GL_BOOL
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| 357 | // case GL_BOOL_VEC2
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| 358 | // case GL_BOOL_VEC3
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| 359 | // case GL_BOOL_VEC4
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| 360 | // case GL_FLOAT_MAT2x3
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| 361 | // case GL_FLOAT_MAT2x4
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| 362 | // case GL_FLOAT_MAT3x2
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| 363 | // case GL_FLOAT_MAT3x4
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| 364 | // case GL_FLOAT_MAT4x2
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| 365 | // case GL_FLOAT_MAT4x3
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[70] | 366 | default : return datatype(0); // TODO: throw!
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[35] | 367 | }
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| 368 | }
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[316] | 369 |
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[438] | 370 | string_view nv::datatype_to_glsl_type( datatype type )
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[316] | 371 | {
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| 372 | switch( type )
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| 373 | {
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| 374 | case INT : return "int";
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| 375 | case FLOAT : return "float";
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| 376 | case FLOAT_VECTOR_2 : return "vec2";
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| 377 | case FLOAT_VECTOR_3 : return "vec3";
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| 378 | case FLOAT_VECTOR_4 : return "vec4";
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| 379 | case FLOAT_MATRIX_2 : return "mat2";
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| 380 | case FLOAT_MATRIX_3 : return "mat3";
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| 381 | case FLOAT_MATRIX_4 : return "mat4";
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| 382 | case INT_VECTOR_2 : return "ivec2";
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| 383 | case INT_VECTOR_3 : return "ivec3";
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| 384 | case INT_VECTOR_4 : return "ivec4";
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| 385 | default : return "error";
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| 386 | }
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| 387 | }
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