diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 81 |
1 files changed, 51 insertions, 30 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index 52bb73971b..5390fd2584 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -935,57 +935,77 @@ void emit_tex(struct brw_wm_compile *c, } -static void emit_txb( struct brw_wm_compile *c, - const struct brw_wm_instruction *inst, - struct brw_reg *dst, - GLuint dst_flags, - struct brw_reg *arg ) +void emit_txb(struct brw_wm_compile *c, + struct brw_reg *dst, + GLuint dst_flags, + struct brw_reg *arg, + struct brw_reg depth_payload, + GLuint tex_idx, + GLuint sampler) { struct brw_compile *p = &c->func; GLuint msgLength; GLuint msg_type; - /* Shadow ignored for txb. + GLuint mrf_per_channel; + GLuint response_length; + struct brw_reg dst_retyped; + + /* The G45 and older chipsets don't support 8-wide dispatch for LOD biased + * samples, so we'll use the 16-wide instruction, leave the second halves + * undefined, and trust the execution mask to keep the undefined pixels + * from mattering. */ - switch (inst->tex_idx) { + if (c->dispatch_width == 16 || !BRW_IS_IGDNG(p->brw)) { + if (BRW_IS_IGDNG(p->brw)) + msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_IGDNG; + else + msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS; + mrf_per_channel = 2; + dst_retyped = retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW); + response_length = 8; + } else { + msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_IGDNG; + mrf_per_channel = 1; + dst_retyped = retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW); + response_length = 4; + } + + /* Shadow ignored for txb. */ + switch (tex_idx) { case TEXTURE_1D_INDEX: - brw_MOV(p, brw_message_reg(2), arg[0]); - brw_MOV(p, brw_message_reg(4), brw_imm_f(0)); - brw_MOV(p, brw_message_reg(6), brw_imm_f(0)); + brw_MOV(p, brw_message_reg(2 + 0 * mrf_per_channel), arg[0]); + brw_MOV(p, brw_message_reg(2 + 1 * mrf_per_channel), brw_imm_f(0)); + brw_MOV(p, brw_message_reg(2 + 2 * mrf_per_channel), brw_imm_f(0)); break; case TEXTURE_2D_INDEX: case TEXTURE_RECT_INDEX: - brw_MOV(p, brw_message_reg(2), arg[0]); - brw_MOV(p, brw_message_reg(4), arg[1]); - brw_MOV(p, brw_message_reg(6), brw_imm_f(0)); + brw_MOV(p, brw_message_reg(2 + 0 * mrf_per_channel), arg[0]); + brw_MOV(p, brw_message_reg(2 + 1 * mrf_per_channel), arg[1]); + brw_MOV(p, brw_message_reg(2 + 2 * mrf_per_channel), brw_imm_f(0)); break; case TEXTURE_3D_INDEX: case TEXTURE_CUBE_INDEX: - brw_MOV(p, brw_message_reg(2), arg[0]); - brw_MOV(p, brw_message_reg(4), arg[1]); - brw_MOV(p, brw_message_reg(6), arg[2]); + brw_MOV(p, brw_message_reg(2 + 0 * mrf_per_channel), arg[0]); + brw_MOV(p, brw_message_reg(2 + 1 * mrf_per_channel), arg[1]); + brw_MOV(p, brw_message_reg(2 + 2 * mrf_per_channel), arg[2]); break; default: /* unexpected target */ abort(); } - brw_MOV(p, brw_message_reg(8), arg[3]); - msgLength = 9; - - if (BRW_IS_IGDNG(p->brw)) - msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_IGDNG; - else - msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS; + brw_MOV(p, brw_message_reg(2 + 3 * mrf_per_channel), arg[3]); + msgLength = 2 + 4 * mrf_per_channel - 1; brw_SAMPLE(p, - retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW), + dst_retyped, 1, - retype(c->payload.depth[0].hw_reg, BRW_REGISTER_TYPE_UW), - SURF_INDEX_TEXTURE(inst->tex_unit), - inst->tex_unit, /* sampler */ - inst->writemask, + retype(depth_payload, BRW_REGISTER_TYPE_UW), + SURF_INDEX_TEXTURE(sampler), + sampler, + dst_flags & WRITEMASK_XYZW, msg_type, - 8, /* responseLength */ + response_length, msgLength, 0, 1, @@ -1563,7 +1583,8 @@ void brw_wm_emit( struct brw_wm_compile *c ) break; case OPCODE_TXB: - emit_txb(c, inst, dst, dst_flags, args[0]); + emit_txb(c, dst, dst_flags, args[0], c->payload.depth[0].hw_reg, + inst->tex_idx, inst->tex_unit); break; case OPCODE_KIL: |