[692] | 1 | #ifndef _RC10_REGISTER_H
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| 2 | #define _RC10_REGISTER_H
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| 3 |
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| 4 | #include <stdlib.h>
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| 5 | #include <GL/glew.h>
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| 6 |
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| 7 | #define RCP_NUM_GENERAL_COMBINERS 8
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| 8 |
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| 9 | #define RCP_RGB 0
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| 10 | #define RCP_ALPHA 1
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| 11 | #define RCP_BLUE 2
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| 12 | #define RCP_NONE 3
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| 13 |
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| 14 | typedef union _RegisterEnum {
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| 15 | struct {
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| 16 | #if BYTE_ORDER != BIG_ENDIAN
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| 17 | unsigned int name :16; // OpenGL enum for register
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| 18 | unsigned int channel : 2; // RCP_RGB, RCP_ALPHA, etc
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| 19 | unsigned int readOnly : 1; // true or false
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| 20 | unsigned int finalOnly : 1; // true or false
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| 21 | unsigned int unused :12;
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| 22 | #else
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| 23 | unsigned int unused :12;
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| 24 | unsigned int finalOnly : 1; // true or false
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| 25 | unsigned int readOnly : 1; // true or false
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| 26 | unsigned int channel : 2; // RCP_RGB, RCP_ALPHA, RCP_BLUE, RCP_NONE
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| 27 | unsigned int name :16; // OpenGL enum for register
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| 28 | #endif
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| 29 | } bits;
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| 30 | unsigned int word;
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| 31 | } RegisterEnum;
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| 32 | // No need for writeOnly flag, since DISCARD is the only register in that category
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| 33 |
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| 34 | // WARNING: Don't monkey with the above structure or this macro
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| 35 | // unless you're absolutely sure of what you're doing!
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| 36 | // This constant allocation makes validation *much* cleaner.
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| 37 | #define RCP_SET_REGISTER_ENUM(name, channel, readonly, finalonly) \
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| 38 | ((finalonly << 19) | (readonly << 18) | (channel << 16) | name)
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| 39 |
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| 40 | #define RCP_FOG_RGB RCP_SET_REGISTER_ENUM(GL_FOG, RCP_RGB, 1, 0)
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| 41 | #define RCP_FOG_ALPHA RCP_SET_REGISTER_ENUM(GL_FOG, RCP_ALPHA, 1, 1)
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| 42 | #define RCP_FOG_BLUE RCP_SET_REGISTER_ENUM(GL_FOG, RCP_BLUE, 1, 0)
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| 43 | #define RCP_FOG RCP_SET_REGISTER_ENUM(GL_FOG, RCP_NONE, 1, 0)
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| 44 | #define RCP_PRIMARY_COLOR_RGB RCP_SET_REGISTER_ENUM(GL_PRIMARY_COLOR_NV, RCP_RGB, 0, 0)
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| 45 | #define RCP_PRIMARY_COLOR_ALPHA RCP_SET_REGISTER_ENUM(GL_PRIMARY_COLOR_NV, RCP_ALPHA, 0, 0)
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| 46 | #define RCP_PRIMARY_COLOR_BLUE RCP_SET_REGISTER_ENUM(GL_PRIMARY_COLOR_NV, RCP_BLUE, 0, 0)
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| 47 | #define RCP_PRIMARY_COLOR RCP_SET_REGISTER_ENUM(GL_PRIMARY_COLOR_NV, RCP_NONE, 0, 0)
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| 48 | #define RCP_SECONDARY_COLOR_RGB RCP_SET_REGISTER_ENUM(GL_SECONDARY_COLOR_NV, RCP_RGB, 0, 0)
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| 49 | #define RCP_SECONDARY_COLOR_ALPHA RCP_SET_REGISTER_ENUM(GL_SECONDARY_COLOR_NV, RCP_ALPHA, 0, 0)
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| 50 | #define RCP_SECONDARY_COLOR_BLUE RCP_SET_REGISTER_ENUM(GL_SECONDARY_COLOR_NV, RCP_BLUE, 0, 0)
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| 51 | #define RCP_SECONDARY_COLOR RCP_SET_REGISTER_ENUM(GL_SECONDARY_COLOR_NV, RCP_NONE, 0, 0)
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| 52 | #define RCP_SPARE0_RGB RCP_SET_REGISTER_ENUM(GL_SPARE0_NV, RCP_RGB, 0, 0)
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| 53 | #define RCP_SPARE0_ALPHA RCP_SET_REGISTER_ENUM(GL_SPARE0_NV, RCP_ALPHA, 0, 0)
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| 54 | #define RCP_SPARE0_BLUE RCP_SET_REGISTER_ENUM(GL_SPARE0_NV, RCP_BLUE, 0, 0)
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| 55 | #define RCP_SPARE0 RCP_SET_REGISTER_ENUM(GL_SPARE0_NV, RCP_NONE, 0, 0)
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| 56 | #define RCP_SPARE1_RGB RCP_SET_REGISTER_ENUM(GL_SPARE1_NV, RCP_RGB, 0, 0)
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| 57 | #define RCP_SPARE1_ALPHA RCP_SET_REGISTER_ENUM(GL_SPARE1_NV, RCP_ALPHA, 0, 0)
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| 58 | #define RCP_SPARE1_BLUE RCP_SET_REGISTER_ENUM(GL_SPARE1_NV, RCP_BLUE, 0, 0)
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| 59 | #define RCP_SPARE1 RCP_SET_REGISTER_ENUM(GL_SPARE1_NV, RCP_NONE, 0, 0)
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| 60 | #define RCP_TEXTURE0_RGB RCP_SET_REGISTER_ENUM(GL_TEXTURE0_ARB, RCP_RGB, 0, 0)
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| 61 | #define RCP_TEXTURE0_ALPHA RCP_SET_REGISTER_ENUM(GL_TEXTURE0_ARB, RCP_ALPHA, 0, 0)
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| 62 | #define RCP_TEXTURE0_BLUE RCP_SET_REGISTER_ENUM(GL_TEXTURE0_ARB, RCP_BLUE, 0, 0)
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| 63 | #define RCP_TEXTURE0 RCP_SET_REGISTER_ENUM(GL_TEXTURE0_ARB, RCP_NONE, 0, 0)
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| 64 | #define RCP_TEXTURE1_RGB RCP_SET_REGISTER_ENUM(GL_TEXTURE1_ARB, RCP_RGB, 0, 0)
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| 65 | #define RCP_TEXTURE1_ALPHA RCP_SET_REGISTER_ENUM(GL_TEXTURE1_ARB, RCP_ALPHA, 0, 0)
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| 66 | #define RCP_TEXTURE1_BLUE RCP_SET_REGISTER_ENUM(GL_TEXTURE1_ARB, RCP_BLUE, 0, 0)
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| 67 | #define RCP_TEXTURE1 RCP_SET_REGISTER_ENUM(GL_TEXTURE1_ARB, RCP_NONE, 0, 0)
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| 68 | #define RCP_TEXTURE2_RGB RCP_SET_REGISTER_ENUM(GL_TEXTURE2_ARB, RCP_RGB, 0, 0)
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| 69 | #define RCP_TEXTURE2_ALPHA RCP_SET_REGISTER_ENUM(GL_TEXTURE2_ARB, RCP_ALPHA, 0, 0)
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| 70 | #define RCP_TEXTURE2_BLUE RCP_SET_REGISTER_ENUM(GL_TEXTURE2_ARB, RCP_BLUE, 0, 0)
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| 71 | #define RCP_TEXTURE2 RCP_SET_REGISTER_ENUM(GL_TEXTURE2_ARB, RCP_NONE, 0, 0)
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| 72 | #define RCP_TEXTURE3_RGB RCP_SET_REGISTER_ENUM(GL_TEXTURE3_ARB, RCP_RGB, 0, 0)
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| 73 | #define RCP_TEXTURE3_ALPHA RCP_SET_REGISTER_ENUM(GL_TEXTURE3_ARB, RCP_ALPHA, 0, 0)
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| 74 | #define RCP_TEXTURE3_BLUE RCP_SET_REGISTER_ENUM(GL_TEXTURE3_ARB, RCP_BLUE, 0, 0)
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| 75 | #define RCP_TEXTURE3 RCP_SET_REGISTER_ENUM(GL_TEXTURE3_ARB, RCP_NONE, 0, 0)
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| 76 | #define RCP_CONST_COLOR0_RGB RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR0_NV, RCP_RGB, 1, 0)
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| 77 | #define RCP_CONST_COLOR0_ALPHA RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR0_NV, RCP_ALPHA, 1, 0)
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| 78 | #define RCP_CONST_COLOR0_BLUE RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR0_NV, RCP_BLUE, 1, 0)
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| 79 | #define RCP_CONST_COLOR0 RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR0_NV, RCP_NONE, 1, 0)
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| 80 | #define RCP_CONST_COLOR1_RGB RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR1_NV, RCP_RGB, 1, 0)
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| 81 | #define RCP_CONST_COLOR1_ALPHA RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR1_NV, RCP_ALPHA, 1, 0)
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| 82 | #define RCP_CONST_COLOR1_BLUE RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR1_NV, RCP_BLUE, 1, 0)
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| 83 | #define RCP_CONST_COLOR1 RCP_SET_REGISTER_ENUM(GL_CONSTANT_COLOR1_NV, RCP_NONE, 1, 0)
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| 84 | #define RCP_ZERO_RGB RCP_SET_REGISTER_ENUM(GL_ZERO, RCP_RGB, 1, 0)
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| 85 | #define RCP_ZERO_ALPHA RCP_SET_REGISTER_ENUM(GL_ZERO, RCP_ALPHA, 1, 0)
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| 86 | #define RCP_ZERO_BLUE RCP_SET_REGISTER_ENUM(GL_ZERO, RCP_BLUE, 1, 0)
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| 87 | #define RCP_ZERO RCP_SET_REGISTER_ENUM(GL_ZERO, RCP_NONE, 1, 0)
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| 88 | #define RCP_ONE_RGB RCP_SET_REGISTER_ENUM(GL_ONE, RCP_RGB, 1, 0)
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| 89 | #define RCP_ONE_ALPHA RCP_SET_REGISTER_ENUM(GL_ONE, RCP_ALPHA, 1, 0)
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| 90 | #define RCP_ONE_BLUE RCP_SET_REGISTER_ENUM(GL_ONE, RCP_BLUE, 1, 0)
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| 91 | #define RCP_ONE RCP_SET_REGISTER_ENUM(GL_ONE, RCP_NONE, 1, 0)
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| 92 | #define RCP_DISCARD RCP_SET_REGISTER_ENUM(GL_DISCARD_NV, RCP_NONE, 0, 0)
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| 93 | #define RCP_FINAL_PRODUCT RCP_SET_REGISTER_ENUM(GL_E_TIMES_F_NV, RCP_NONE, 1, 1)
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| 94 | #define RCP_COLOR_SUM RCP_SET_REGISTER_ENUM(GL_SPARE0_PLUS_SECONDARY_COLOR_NV, RCP_NONE, 1, 1)
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| 95 |
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| 96 | #define MAP_CHANNEL(channel) ((RCP_RGB == (channel)) ? GL_RGB : (RCP_ALPHA == (channel) ? GL_ALPHA : GL_BLUE))
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| 97 |
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| 98 | typedef union _BiasScaleEnum {
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| 99 | struct {
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| 100 | #if BYTE_ORDER != BIG_ENDIAN
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| 101 | unsigned int bias :16; // OpenGL enum for bias
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| 102 | unsigned int scale :16; // OpenGL enum for scale
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| 103 | #else
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| 104 | unsigned int scale :16; // OpenGL enum for scale
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| 105 | unsigned int bias :16; // OpenGL enum for bias
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| 106 | #endif
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| 107 | } bits;
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| 108 | unsigned int word;
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| 109 | } BiasScaleEnum;
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| 110 |
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| 111 | // WARNING: Don't monkey with the above structure or this macro
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| 112 | // unless you're absolutely sure of what you're doing!
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| 113 | // This constant allocation makes validation *much* cleaner.
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| 114 | #define RCP_SET_BIAS_SCALE_ENUM(bias, scale) ((scale << 16) | bias)
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| 115 |
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| 116 | #define RCP_BIAS_BY_NEGATIVE_ONE_HALF_SCALE_BY_TWO RCP_SET_BIAS_SCALE_ENUM(GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_SCALE_BY_TWO_NV)
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| 117 | #define RCP_BIAS_BY_NEGATIVE_ONE_HALF RCP_SET_BIAS_SCALE_ENUM(GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_NONE)
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| 118 | #define RCP_SCALE_BY_ONE_HALF RCP_SET_BIAS_SCALE_ENUM(GL_NONE, GL_SCALE_BY_ONE_HALF_NV)
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| 119 | #define RCP_SCALE_BY_ONE RCP_SET_BIAS_SCALE_ENUM(GL_NONE, GL_NONE)
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| 120 | #define RCP_SCALE_BY_TWO RCP_SET_BIAS_SCALE_ENUM(GL_NONE, GL_SCALE_BY_TWO_NV)
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| 121 | #define RCP_SCALE_BY_FOUR RCP_SET_BIAS_SCALE_ENUM(GL_NONE, GL_SCALE_BY_FOUR_NV)
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| 122 |
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| 123 | class MappedRegisterStruct {
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| 124 | public:
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| 125 | void Init(RegisterEnum _reg, int _map = GL_UNSIGNED_IDENTITY_NV)
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| 126 | {
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| 127 | if (RCP_ONE == _reg.bits.name) {
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| 128 | _reg.bits.name = RCP_ZERO;
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| 129 | switch (_map) {
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| 130 | case GL_UNSIGNED_IDENTITY_NV:
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| 131 | _map = GL_UNSIGNED_INVERT_NV;
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| 132 | break;
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| 133 | case GL_UNSIGNED_INVERT_NV:
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| 134 | _map = GL_UNSIGNED_IDENTITY_NV;
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| 135 | break;
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| 136 | case GL_EXPAND_NORMAL_NV:
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| 137 | _map = GL_UNSIGNED_INVERT_NV;
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| 138 | break;
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| 139 | case GL_EXPAND_NEGATE_NV:
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| 140 | _map = GL_EXPAND_NORMAL_NV;
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| 141 | break;
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| 142 | case GL_HALF_BIAS_NORMAL_NV:
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| 143 | _map = GL_HALF_BIAS_NEGATE_NV;
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| 144 | break;
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| 145 | case GL_HALF_BIAS_NEGATE_NV:
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| 146 | _map = GL_HALF_BIAS_NORMAL_NV;
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| 147 | break;
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| 148 | case GL_SIGNED_IDENTITY_NV:
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| 149 | _map = GL_UNSIGNED_INVERT_NV;
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| 150 | break;
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| 151 | case GL_SIGNED_NEGATE_NV:
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| 152 | _map = GL_EXPAND_NORMAL_NV;
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| 153 | break;
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| 154 | }
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| 155 | }
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| 156 | map = _map;
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| 157 | reg = _reg;
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| 158 | }
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| 159 | int map;
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| 160 | RegisterEnum reg;
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| 161 | };
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| 162 |
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| 163 | #ifdef TEST_BIT_FIELDS
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| 164 |
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| 165 | class RegisterEnumTest {
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| 166 | public:
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| 167 | RegisterEnumTest()
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| 168 | {
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| 169 | RegisterEnum reg;
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| 170 | bool error = false;
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| 171 |
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| 172 | if (sizeof(reg.bits) != sizeof(reg.word))
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| 173 | error = true;
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| 174 |
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| 175 | reg.word = 0; reg.bits.name = 0xFFFF;
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| 176 | if (RCP_SET_REGISTER_ENUM(0xFFFF, 0, 0, 0) != reg.word)
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| 177 | error = true;
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| 178 |
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| 179 | reg.word = 0; reg.bits.channel = 3;
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| 180 | if (RCP_SET_REGISTER_ENUM(0, 3, 0, 0) != reg.word)
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| 181 | error = true;
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| 182 |
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| 183 | reg.word = 0; reg.bits.readOnly = true;
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| 184 | if (RCP_SET_REGISTER_ENUM(0, 0, 1, 0) != reg.word)
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| 185 | error = true;
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| 186 |
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| 187 | reg.word = 0; reg.bits.finalOnly = true;
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| 188 | if (RCP_SET_REGISTER_ENUM(0, 0, 0, 1) != reg.word)
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| 189 | error = true;
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| 190 |
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| 191 | if (error) {
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| 192 | fprintf(stderr, "ERROR: Bit Fields were not compiled correctly in " __FILE__ "!\n");
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| 193 | exit(1);
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| 194 | }
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| 195 | }
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| 196 | };
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| 197 |
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| 198 | static RegisterEnumTest registerEnumTest;
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| 199 | #endif
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| 200 |
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| 201 | #endif
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