[36] | 1 | // Copyright (C) 2012-2013 Kornel Kisielewicz
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[35] | 2 | // This file is part of NV Libraries.
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| 3 | // For conditions of distribution and use, see copyright notice in nv.hh
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| 4 |
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| 5 | #include "nv/gl/gl_enum.hh"
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| 6 |
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| 7 | #include "nv/lib/gl.hh"
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| 8 |
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| 9 | using namespace nv;
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| 10 |
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[40] | 11 | unsigned int nv::clear_state_buffers_to_mask( clear_state::buffers_type type )
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[35] | 12 | {
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| 13 | unsigned int mask = 0;
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| 14 | if ( (type & clear_state::COLOR_BUFFER) != 0 ) mask |= GL_COLOR_BUFFER_BIT;
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| 15 | if ( (type & clear_state::DEPTH_BUFFER) != 0 ) mask |= GL_DEPTH_BUFFER_BIT;
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| 16 | if ( (type & clear_state::STENCIL_BUFFER) != 0 ) mask |= GL_STENCIL_BUFFER_BIT;
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| 17 | return mask;
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| 18 | }
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| 19 |
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[40] | 20 | unsigned int nv::depth_state_function_to_enum( depth_test::function_type type )
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[35] | 21 | {
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| 22 | switch( type )
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| 23 | {
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| 24 | case depth_test::NEVER : return GL_NEVER;
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| 25 | case depth_test::LESS : return GL_LESS;
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| 26 | case depth_test::EQUAL : return GL_EQUAL;
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| 27 | case depth_test::LESS_OR_EQUAL : return GL_LEQUAL;
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| 28 | case depth_test::GREATER : return GL_GREATER;
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| 29 | case depth_test::NOT_EQUAL : return GL_NOTEQUAL;
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| 30 | case depth_test::GREATER_OR_EQUAL : return GL_GEQUAL;
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| 31 | case depth_test::ALWAYS : return GL_ALWAYS;
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| 32 | default : return 0; // TODO: throw!
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| 33 | }
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| 34 | }
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| 35 |
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[40] | 36 | unsigned int nv::blending_factor_to_enum( blending::factor type )
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[35] | 37 | {
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| 38 | switch( type )
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| 39 | {
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| 40 | case blending::ZERO : return GL_ZERO;
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| 41 | case blending::ONE : return GL_ONE;
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| 42 | case blending::SRC_COLOR : return GL_SRC_COLOR;
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| 43 | case blending::ONE_MINUS_SRC_COLOR : return GL_ONE_MINUS_SRC_COLOR;
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| 44 | case blending::DST_COLOR : return GL_DST_COLOR;
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| 45 | case blending::ONE_MINUS_DST_COLOR : return GL_ONE_MINUS_DST_COLOR;
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| 46 | case blending::SRC_ALPHA : return GL_SRC_ALPHA;
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| 47 | case blending::ONE_MINUS_SRC_ALPHA : return GL_ONE_MINUS_SRC_ALPHA;
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| 48 | case blending::DST_ALPHA : return GL_DST_ALPHA;
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| 49 | case blending::ONE_MINUS_DST_ALPHA : return GL_ONE_MINUS_DST_ALPHA;
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| 50 | case blending::CONSTANT_COLOR : return GL_CONSTANT_COLOR;
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| 51 | case blending::ONE_MINUS_CONSTANT_COLOR: return GL_ONE_MINUS_CONSTANT_COLOR;
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| 52 | case blending::CONSTANT_ALPHA : return GL_CONSTANT_ALPHA;
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| 53 | case blending::ONE_MINUS_CONSTANT_ALPHA: return GL_ONE_MINUS_CONSTANT_ALPHA;
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| 54 | case blending::SRC_ALPHA_SATURATE : return GL_SRC_ALPHA_SATURATE;
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| 55 | default : return 0; // TODO: throw!
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| 56 | }
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| 57 | }
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| 58 |
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[40] | 59 | unsigned int nv::blending_equation_to_enum( blending::equation type )
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[35] | 60 | {
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| 61 | switch( type )
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| 62 | {
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| 63 | case blending::ADD : return GL_FUNC_ADD;
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| 64 | case blending::SUBTRACT : return GL_FUNC_SUBTRACT;
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| 65 | case blending::REVERSE_SUBTRACT : return GL_FUNC_REVERSE_SUBTRACT;
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| 66 | case blending::MINIMUM : return GL_MIN;
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| 67 | case blending::MAXIMUM : return GL_MAX;
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| 68 | default : return 0; // TODO: throw!
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| 69 | }
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| 70 | }
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| 71 |
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[40] | 72 | unsigned int nv::culling_face_type_to_enum( culling::face_type type )
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[35] | 73 | {
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| 74 | switch( type )
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| 75 | {
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| 76 | case culling::FRONT : return GL_FRONT;
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| 77 | case culling::BACK : return GL_BACK;
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| 78 | case culling::FRONT_AND_BACK : return GL_FRONT_AND_BACK;
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| 79 | default : return 0; // TODO: throw!
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| 80 | }
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| 81 | }
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| 82 |
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[40] | 83 | unsigned int nv::culling_order_type_to_enum( culling::order_type type )
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[35] | 84 | {
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| 85 | switch( type )
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| 86 | {
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| 87 | case culling::CW : return GL_CW;
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| 88 | case culling::CCW : return GL_CCW;
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| 89 | default : return 0; // TODO: throw!
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| 90 | }
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| 91 | }
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| 92 |
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[40] | 93 | unsigned int nv::stencil_function_to_enum( stencil_test_face::function_type type )
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[35] | 94 | {
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| 95 | switch( type )
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| 96 | {
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| 97 | case stencil_test_face::NEVER : return GL_NEVER;
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| 98 | case stencil_test_face::LESS : return GL_LESS;
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| 99 | case stencil_test_face::EQUAL : return GL_EQUAL;
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| 100 | case stencil_test_face::LESS_OR_EQUAL : return GL_LEQUAL;
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| 101 | case stencil_test_face::GREATER : return GL_GREATER;
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| 102 | case stencil_test_face::NOT_EQUAL : return GL_NOTEQUAL;
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| 103 | case stencil_test_face::GREATER_OR_EQUAL : return GL_GEQUAL;
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| 104 | case stencil_test_face::ALWAYS : return GL_ALWAYS;
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| 105 | default : return 0; // TODO: throw!
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| 106 | }
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| 107 | }
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| 108 |
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[40] | 109 | unsigned int nv::stencil_operation_to_enum( stencil_test_face::operation type )
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[35] | 110 | {
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| 111 | switch( type )
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| 112 | {
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| 113 | case stencil_test_face::ZERO : return GL_ZERO;
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| 114 | case stencil_test_face::INVERT : return GL_INVERT;
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| 115 | case stencil_test_face::KEEP : return GL_KEEP;
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| 116 | case stencil_test_face::REPLACE : return GL_REPLACE;
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| 117 | case stencil_test_face::INCREMENT : return GL_INCR;
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| 118 | case stencil_test_face::DECREMENT : return GL_DECR;
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| 119 | case stencil_test_face::INCREMENT_WRAP : return GL_INCR_WRAP;
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| 120 | case stencil_test_face::DECREMENT_WRAP : return GL_DECR_WRAP;
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| 121 | default : return 0; // TODO: throw!
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| 122 | }
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| 123 | }
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| 124 |
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[40] | 125 | unsigned int nv::type_to_gl_enum( type type )
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[35] | 126 | {
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| 127 | switch( type )
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| 128 | {
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| 129 | case FLOAT : return GL_FLOAT;
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| 130 | case FLOAT_VECTOR_2 : return GL_FLOAT_VEC2;
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| 131 | case FLOAT_VECTOR_3 : return GL_FLOAT_VEC3;
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| 132 | case FLOAT_VECTOR_4 : return GL_FLOAT_VEC4;
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| 133 | case FLOAT_MATRIX_2 : return GL_FLOAT_MAT2;
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| 134 | case FLOAT_MATRIX_3 : return GL_FLOAT_MAT3;
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| 135 | case FLOAT_MATRIX_4 : return GL_FLOAT_MAT4;
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| 136 | case INT : return GL_INT;
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| 137 | case INT_VECTOR_2 : return GL_INT_VEC2;
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| 138 | case INT_VECTOR_3 : return GL_INT_VEC3;
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| 139 | case INT_VECTOR_4 : return GL_INT_VEC4;
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| 140 | default : return 0; // TODO: throw!
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| 141 | }
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| 142 | }
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| 143 |
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[40] | 144 | nv::type nv::gl_enum_to_type( unsigned int gl_enum )
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[35] | 145 | {
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| 146 | switch( gl_enum )
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| 147 | {
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| 148 | case GL_FLOAT : return FLOAT;
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| 149 | case GL_FLOAT_VEC2 : return FLOAT_VECTOR_2;
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| 150 | case GL_FLOAT_VEC3 : return FLOAT_VECTOR_3;
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| 151 | case GL_FLOAT_VEC4 : return FLOAT_VECTOR_4;
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| 152 | case GL_FLOAT_MAT2 : return FLOAT_MATRIX_2;
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| 153 | case GL_FLOAT_MAT3 : return FLOAT_MATRIX_3;
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| 154 | case GL_FLOAT_MAT4 : return FLOAT_MATRIX_4;
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| 155 | case GL_INT : return INT;
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| 156 | case GL_INT_VEC2 : return INT_VECTOR_2;
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| 157 | case GL_INT_VEC3 : return INT_VECTOR_3;
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| 158 | case GL_INT_VEC4 : return INT_VECTOR_4;
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| 159 | default : return type(0); // TODO: throw!
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| 160 | }
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| 161 | }
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