diff options
| author | Eric Anholt <eric@anholt.net> | 2009-08-12 12:56:35 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-11-06 21:08:54 -0800 |
| commit | 0f34cdf6210b748db77c5eba2993637f4af6faeb (patch) | |
| tree | 63d3efb862060c726a850869bf7c20775fa28bb1 | |
| parent | e521bf7706a5527ad5750baef78feaa961f73ecc (diff) | |
i965: Collect GLSL src/dst regs up in generic code.
This matches brw_wm_emit.c, which we'll be using shortly. There's a
possible penalty here in that we'll allocate registers for unused channels,
since we aren't doing ref tracking like brw_wm_pass*.c does. However, my
measurements on GM965 don't show any for either OA or UT2004 with the GLSL
path forced.
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm.h | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 22 |
2 files changed, 17 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h index 47aa4da3067..f841d258702 100644 --- a/src/mesa/drivers/dri/i965/brw_wm.h +++ b/src/mesa/drivers/dri/i965/brw_wm.h @@ -162,6 +162,8 @@ struct brw_wm_instruction { #define BRW_WM_MAX_CONST 256 #define BRW_WM_MAX_SUBROUTINE 16 +/* used in masks next to WRITEMASK_*. */ +#define SATURATE (1<<5) /* New opcodes to track internal operations required for WM unit. diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index 28d6d4eba5c..fd6d6c5602d 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -2771,6 +2771,21 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) if (c->fp->use_const_buffer) fetch_constants(c, inst); + if (inst->Opcode != OPCODE_ARL) { + for (j = 0; j < 4; j++) { + if (inst->DstReg.WriteMask & (1 << j)) + dst[j] = get_dst_reg(c, inst, j); + else + dst[j] = brw_null_reg(); + } + } + for (j = 0; j < brw_wm_nr_args(inst->Opcode); j++) + get_argument_regs(c, inst, j, args[j], WRITEMASK_XYZW); + + dst_flags = inst->DstReg.WriteMask; + if (inst->SaturateMode == SATURATE_ZERO_ONE) + dst_flags |= SATURATE; + if (inst->CondUpdate) brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ); else @@ -2866,13 +2881,6 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) break; case OPCODE_DDX: case OPCODE_DDY: - for (j = 0; j < 4; j++) { - if (inst->DstReg.WriteMask & (1 << j)) - dst[j] = get_dst_reg(c, inst, j); - else - dst[j] = brw_null_reg(); - } - get_argument_regs(c, inst, 0, args[0], WRITEMASK_XYZW); emit_ddxy(p, dst, dst_flags, (inst->Opcode == OPCODE_DDX), args[0]); break; |