diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c index a21fe8d3df..5905d26e52 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_pair.c @@ -27,6 +27,9 @@ #include "radeon_program_pair.h" +#include "radeon_compiler_util.h" + +#include <stdlib.h> /** * Return the source slot where we installed the given register access, @@ -204,24 +207,37 @@ void rc_pair_foreach_source_that_rgb_reads( } } -/*return 0 for rgb, 1 for alpha -1 for error. */ - -unsigned int rc_source_type_that_arg_reads( - unsigned int source, - unsigned int swizzle) +struct rc_pair_instruction_source * rc_pair_get_src( + struct rc_pair_instruction * pair_inst, + struct rc_pair_instruction_arg * arg) { - unsigned int chan; - unsigned int swz = RC_SWIZZLE_UNUSED; - unsigned int ret = RC_PAIR_SOURCE_NONE; - - for(chan = 0; chan < 3; chan++) { - swz = GET_SWZ(swizzle, chan); - if (swz == RC_SWIZZLE_W) { - ret |= RC_PAIR_SOURCE_ALPHA; - } else if (swz == RC_SWIZZLE_X || swz == RC_SWIZZLE_Y - || swz == RC_SWIZZLE_Z) { - ret |= RC_PAIR_SOURCE_RGB; + unsigned int i, type; + unsigned int channels = 0; + + for(i = 0; i < 3; i++) { + if (arg == pair_inst->RGB.Arg + i) { + channels = 3; + break; } } - return ret; + + if (channels == 0) { + for (i = 0; i < 3; i++) { + if (arg == pair_inst->Alpha.Arg + i) { + channels = 1; + break; + } + } + } + + assert(channels > 0); + type = rc_source_type_swz(arg->Swizzle, channels); + + if (type & RC_SOURCE_RGB) { + return &pair_inst->RGB.Src[arg->Source]; + } else if (type & RC_SOURCE_ALPHA) { + return &pair_inst->Alpha.Src[arg->Source]; + } else { + return NULL; + } } |