diff options
Diffstat (limited to 'r300/compiler/radeon_code.h')
| -rw-r--r-- | r300/compiler/radeon_code.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/r300/compiler/radeon_code.h b/r300/compiler/radeon_code.h index 3e88554..902b7cf 100644 --- a/r300/compiler/radeon_code.h +++ b/r300/compiler/radeon_code.h @@ -89,6 +89,23 @@ unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const floa unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle); /** + * Compare functions. + * + * \note By design, RC_COMPARE_FUNC_xxx + GL_NEVER gives you + * the correct GL compare function. + */ +typedef enum { + RC_COMPARE_FUNC_NEVER = 0, + RC_COMPARE_FUNC_LESS, + RC_COMPARE_FUNC_EQUAL, + RC_COMPARE_FUNC_LEQUAL, + RC_COMPARE_FUNC_GREATER, + RC_COMPARE_FUNC_NOTEQUAL, + RC_COMPARE_FUNC_GEQUAL, + RC_COMPARE_FUNC_ALWAYS +} rc_compare_func; + +/** * Stores state that influences the compilation of a fragment program. */ struct r300_fragment_program_external_state { @@ -105,10 +122,12 @@ struct r300_fragment_program_external_state { /** * If the sampler is used as a shadow sampler, - * this field is (texture_compare_func - GL_NEVER). - * [e.g. if compare function is GL_LEQUAL, this field is 3] + * this field specifies the compare function. + * + * Otherwise, this field is \ref RC_COMPARE_FUNC_NEVER (aka 0). * * Otherwise, this field is 0. + * \sa rc_compare_func */ unsigned texture_compare_func : 3; } unit[16]; @@ -163,6 +182,8 @@ struct r500_fragment_program_code { int inst_end; /* Number of instructions - 1; also, last instruction to be executed */ int max_temp_idx; + + uint32_t us_fc_ctrl; }; struct rX00_fragment_program_code { |