diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_glsl.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index 315b030484..0b66cc6c9f 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -289,6 +289,7 @@ reclaim_temps(struct brw_wm_compile *c) */ static void prealloc_reg(struct brw_wm_compile *c) { + struct intel_context *intel = &c->func.brw->intel; int i, j; struct brw_reg reg; int urb_read_length = 0; @@ -413,6 +414,43 @@ static void prealloc_reg(struct brw_wm_compile *c) } } + for (i = 0; i < c->nr_fp_insns; i++) { + const struct prog_instruction *inst = &c->prog_instructions[i]; + + switch (inst->Opcode) { + case WM_DELTAXY: + /* Allocate WM_DELTAXY destination on G45/GM45 to an + * even-numbered GRF if possible so that we can use the PLN + * instruction. + */ + if (inst->DstReg.WriteMask == WRITEMASK_XY && + !c->wm_regs[inst->DstReg.File][inst->DstReg.Index][0].inited && + !c->wm_regs[inst->DstReg.File][inst->DstReg.Index][1].inited && + (IS_G4X(intel->intelScreen->deviceID) || intel->gen == 5)) { + int grf; + + for (grf = c->first_free_grf & ~1; + grf < BRW_WM_MAX_GRF; + grf += 2) + { + if (!c->used_grf[grf] && !c->used_grf[grf + 1]) { + c->used_grf[grf] = GL_TRUE; + c->used_grf[grf + 1] = GL_TRUE; + c->first_free_grf = grf + 2; /* a guess */ + + set_reg(c, inst->DstReg.File, inst->DstReg.Index, 0, + brw_vec8_grf(grf, 0)); + set_reg(c, inst->DstReg.File, inst->DstReg.Index, 1, + brw_vec8_grf(grf + 1, 0)); + break; + } + } + } + default: + break; + } + } + /* An instruction may reference up to three constants. * They'll be found in these registers. * XXX alloc these on demand! @@ -2029,8 +2067,9 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) } break; default: - printf("unsupported IR in fragment shader %d\n", - inst->Opcode); + printf("unsupported opcode %d (%s) in fragment shader\n", + inst->Opcode, inst->Opcode < MAX_OPCODE ? + _mesa_opcode_string(inst->Opcode) : "unknown"); } /* Release temporaries containing any unaliased source regs. */ |