diff options
Diffstat (limited to 'src/mesa/main/mtypes.h')
-rw-r--r-- | src/mesa/main/mtypes.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 4986e42d1b3..e5f7cbaa5bc 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1078,6 +1078,87 @@ struct gl_tex_env_combine_state }; +/** Compressed TexEnv effective Combine mode */ +enum gl_tex_env_mode +{ + TEXENV_MODE_REPLACE, /* r = a0 */ + TEXENV_MODE_MODULATE, /* r = a0 * a1 */ + TEXENV_MODE_ADD, /* r = a0 + a1 */ + TEXENV_MODE_ADD_SIGNED, /* r = a0 + a1 - 0.5 */ + TEXENV_MODE_INTERPOLATE, /* r = a0 * a2 + a1 * (1 - a2) */ + TEXENV_MODE_SUBTRACT, /* r = a0 - a1 */ + TEXENV_MODE_DOT3_RGB, /* r = a0 . a1 */ + TEXENV_MODE_DOT3_RGB_EXT, /* r = a0 . a1 */ + TEXENV_MODE_DOT3_RGBA, /* r = a0 . a1 */ + TEXENV_MODE_DOT3_RGBA_EXT, /* r = a0 . a1 */ + TEXENV_MODE_MODULATE_ADD_ATI, /* r = a0 * a2 + a1 */ + TEXENV_MODE_MODULATE_SIGNED_ADD_ATI, /* r = a0 * a2 + a1 - 0.5 */ + TEXENV_MODE_MODULATE_SUBTRACT_ATI, /* r = a0 * a2 - a1 */ + TEXENV_MODE_ADD_PRODUCTS_NV, /* r = a0 * a1 + a2 * a3 */ + TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV, /* r = a0 * a1 + a2 * a3 - 0.5 */ +}; + + +/** Compressed TexEnv Combine source */ +enum gl_tex_env_source +{ + TEXENV_SRC_TEXTURE0, + TEXENV_SRC_TEXTURE1, + TEXENV_SRC_TEXTURE2, + TEXENV_SRC_TEXTURE3, + TEXENV_SRC_TEXTURE4, + TEXENV_SRC_TEXTURE5, + TEXENV_SRC_TEXTURE6, + TEXENV_SRC_TEXTURE7, + TEXENV_SRC_TEXTURE, + TEXENV_SRC_PREVIOUS, + TEXENV_SRC_PRIMARY_COLOR, + TEXENV_SRC_CONSTANT, + TEXENV_SRC_ZERO, + TEXENV_SRC_ONE, +}; + + +/** Compressed TexEnv Combine operand */ +enum gl_tex_env_operand +{ + TEXENV_OPR_COLOR, + TEXENV_OPR_ONE_MINUS_COLOR, + TEXENV_OPR_ALPHA, + TEXENV_OPR_ONE_MINUS_ALPHA, +}; + + +/** Compressed TexEnv Combine argument */ +struct gl_tex_env_argument +{ +#ifdef __GNUC__ + __extension__ uint8_t Source:4; /**< TEXENV_SRC_x */ + __extension__ uint8_t Operand:2; /**< TEXENV_OPR_x */ +#else + uint8_t Source; /**< SRC_x */ + uint8_t Operand; /**< OPR_x */ +#endif +}; + + +/*** + * Compressed TexEnv Combine state. + */ +struct gl_tex_env_combine_packed +{ + uint32_t ModeRGB:4; /**< Effective mode for RGB as 4 bits */ + uint32_t ModeA:4; /**< Effective mode for RGB as 4 bits */ + uint32_t ScaleShiftRGB:2; /**< 0, 1 or 2 */ + uint32_t ScaleShiftA:2; /**< 0, 1 or 2 */ + uint32_t NumArgsRGB:3; /**< Number of inputs used for the RGB combiner */ + uint32_t NumArgsA:3; /**< Number of inputs used for the A combiner */ + /** Source arguments in a packed manner */ + struct gl_tex_env_argument ArgsRGB[MAX_COMBINER_TERMS]; + struct gl_tex_env_argument ArgsA[MAX_COMBINER_TERMS]; +}; + + /** * TexGenEnabled flags. */ @@ -1180,6 +1261,8 @@ struct gl_texture_unit /** Points to highest priority, complete and enabled texture object */ struct gl_texture_object *_Current; + /** Current compressed TexEnv & Combine state */ + struct gl_tex_env_combine_packed _CurrentCombinePacked; }; |