* src, just set the saturate flag instead of emmitting a separate mov.
*/
fs_inst *modify = get_instruction_generating_reg(pre_inst, last_inst, src);
- if (modify && modify->regs_written == 1 && modify->can_do_saturate()) {
+ if (modify && modify->regs_written == modify->dst.width / 8 &&
+ modify->can_do_saturate()) {
modify->saturate = true;
this->result = src;
return true;
inst->base_mrf = base_mrf;
inst->mlen = mlen;
inst->header_present = header_present;
- inst->regs_written = 4;
+ inst->regs_written = 4 * reg_width;
if (mlen > MAX_SAMPLER_MESSAGE_SIZE) {
fail("Message length >" STRINGIFY(MAX_SAMPLER_MESSAGE_SIZE)
* need to offset the Sampler State Pointer in the header.
*/
header_present = true;
- sources[length] = reg_undef;
+ sources[0] = fs_reg(GRF, virtual_grf_alloc(1), BRW_REGISTER_TYPE_UD);
length++;
}
}
}
- fs_reg src_payload = fs_reg(GRF, virtual_grf_alloc(length),
+ int mlen;
+ if (reg_width == 2)
+ mlen = length * reg_width - header_present;
+ else
+ mlen = length * reg_width;
+
+ fs_reg src_payload = fs_reg(GRF, virtual_grf_alloc(mlen),
BRW_REGISTER_TYPE_F);
emit(LOAD_PAYLOAD(src_payload, sources, length));
}
fs_inst *inst = emit(opcode, dst, src_payload, sampler);
inst->base_mrf = -1;
- if (reg_width == 2)
- inst->mlen = length * reg_width - header_present;
- else
- inst->mlen = length * reg_width;
+ inst->mlen = mlen;
inst->header_present = header_present;
- inst->regs_written = 4;
+ inst->regs_written = 4 * reg_width;
if (inst->mlen > MAX_SAMPLER_MESSAGE_SIZE) {
fail("Message length >" STRINGIFY(MAX_SAMPLER_MESSAGE_SIZE)
{
int reg_width = dispatch_width / 8;
int length = ir->coordinate->type->vector_elements;
- fs_reg payload = fs_reg(GRF, virtual_grf_alloc(length),
+ fs_reg payload = fs_reg(GRF, virtual_grf_alloc(length * reg_width),
BRW_REGISTER_TYPE_F);
fs_reg dest = fs_reg(this, glsl_type::uvec4_type);
fs_reg *sources = ralloc_array(mem_ctx, fs_reg, length);
inst->base_mrf = -1;
inst->mlen = length * reg_width;
inst->header_present = false;
- inst->regs_written = 4; /* we only care about one reg of response,
- * but the sampler always writes 4/8
- */
+ inst->regs_written = 4 * reg_width; /* we only care about one reg of
+ * response, but the sampler always
+ * writes 4/8
+ */
return dest;
}
emit_math(SHADER_OPCODE_INT_QUOTIENT, fixed_depth, depth, fs_reg(6));
fs_reg *fixed_payload = ralloc_array(mem_ctx, fs_reg, inst->regs_written);
- for (int i = 0; i < inst->regs_written; i++) {
+ int components = inst->regs_written / (dst.width / 8);
+ for (int i = 0; i < components; i++) {
if (i == 2) {
fixed_payload[i] = fixed_depth;
} else {
fixed_payload[i] = offset(dst, i);
}
}
- emit(LOAD_PAYLOAD(dst, fixed_payload, inst->regs_written));
+ emit(LOAD_PAYLOAD(dst, fixed_payload, components));
}
}
}
void
-fs_visitor::emit_color_write(int target, int index, int first_color_mrf)
+fs_visitor::emit_color_write(fs_reg color, int index, int first_color_mrf)
{
assert(stage == MESA_SHADER_FRAGMENT);
brw_wm_prog_key *key = (brw_wm_prog_key*) this->key;
int reg_width = dispatch_width / 8;
fs_inst *inst;
- fs_reg color = outputs[target];
fs_reg mrf;
/* If there's no color data to be written, skip it. */
cmp->flag_subreg = 1;
}
-void
-fs_visitor::emit_fb_writes()
+fs_inst *
+fs_visitor::emit_single_fb_write(fs_reg color0, fs_reg color1,
+ fs_reg src0_alpha, unsigned components)
{
assert(stage == MESA_SHADER_FRAGMENT);
brw_wm_prog_data *prog_data = (brw_wm_prog_data*) this->prog_data;
int base_mrf = 1;
int nr = base_mrf;
int reg_width = dispatch_width / 8;
- bool src0_alpha_to_render_target = false;
-
- if (do_dual_src) {
- no16("GL_ARB_blend_func_extended not yet supported in SIMD16.");
- if (dispatch_width == 16)
- do_dual_src = false;
- }
/* From the Sandy Bridge PRM, volume 4, page 198:
*
*/
if (brw->gen >= 6 &&
(brw->is_haswell || brw->gen >= 8 || !prog_data->uses_kill) &&
- !do_dual_src &&
+ color1.file == BAD_FILE &&
key->nr_color_regions == 1) {
header_present = false;
}
- if (header_present) {
- src0_alpha_to_render_target = brw->gen >= 6 &&
- !do_dual_src &&
- key->replicate_alpha;
+ if (header_present)
/* m2, m3 header */
nr += 2;
- }
if (payload.aa_dest_stencil_reg) {
push_force_uncompressed();
nr += 1;
}
- /* Reserve space for color. It'll be filled in per MRT below. */
- int color_mrf = nr;
- nr += 4 * reg_width;
- if (do_dual_src)
- nr += 4;
- if (src0_alpha_to_render_target)
- nr += reg_width;
+ if (color0.file == BAD_FILE) {
+ /* Even if there's no color buffers enabled, we still need to send
+ * alpha out the pipeline to our null renderbuffer to support
+ * alpha-testing, alpha-to-coverage, and so on.
+ */
+ emit_color_write(this->outputs[0], 3, nr);
+ nr += 4 * reg_width;
+ } else if (color1.file == BAD_FILE) {
+ if (src0_alpha.file != BAD_FILE) {
+ fs_inst *inst;
+ inst = emit(MOV(fs_reg(MRF, nr, src0_alpha.type), src0_alpha));
+ inst->saturate = key->clamp_fragment_color;
+ nr += reg_width;
+ }
+
+ for (unsigned i = 0; i < components; i++)
+ emit_color_write(color0, i, nr);
+
+ nr += 4 * reg_width;
+ } else {
+ for (unsigned i = 0; i < components; i++)
+ emit_color_write(color0, i, nr);
+ nr += 4 * reg_width;
+
+ for (unsigned i = 0; i < components; i++)
+ emit_color_write(color1, i, nr);
+ nr += 4 * reg_width;
+ }
if (source_depth_to_render_target) {
if (brw->gen == 6) {
nr += reg_width;
}
- if (do_dual_src) {
- fs_reg src0 = this->outputs[0];
- fs_reg src1 = this->dual_src_output;
+ fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
+ inst->base_mrf = base_mrf;
+ inst->mlen = nr - base_mrf;
+ inst->header_present = header_present;
+ if ((brw->gen >= 8 || brw->is_haswell) && prog_data->uses_kill) {
+ inst->predicate = BRW_PREDICATE_NORMAL;
+ inst->flag_subreg = 1;
+ }
+ return inst;
+}
- this->current_annotation = ralloc_asprintf(this->mem_ctx,
- "FB write src0");
- for (int i = 0; i < 4; i++) {
- fs_inst *inst = emit(MOV(fs_reg(MRF, color_mrf + i, src0.type), src0));
- src0 = offset(src0, 1);
- inst->saturate = key->clamp_fragment_color;
- }
+void
+fs_visitor::emit_fb_writes()
+{
+ assert(stage == MESA_SHADER_FRAGMENT);
+ brw_wm_prog_data *prog_data = (brw_wm_prog_data*) this->prog_data;
+ brw_wm_prog_key *key = (brw_wm_prog_key*) this->key;
- this->current_annotation = ralloc_asprintf(this->mem_ctx,
- "FB write src1");
- for (int i = 0; i < 4; i++) {
- fs_inst *inst = emit(MOV(fs_reg(MRF, color_mrf + 4 + i, src1.type),
- src1));
- src1 = offset(src1, 1);
- inst->saturate = key->clamp_fragment_color;
- }
+ if (do_dual_src) {
+ no16("GL_ARB_blend_func_extended not yet supported in SIMD16.");
+ if (dispatch_width == 16)
+ do_dual_src = false;
+ }
+ fs_inst *inst;
+ if (do_dual_src) {
if (INTEL_DEBUG & DEBUG_SHADER_TIME)
emit_shader_time_end();
- fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
+ this->current_annotation = ralloc_asprintf(this->mem_ctx,
+ "FB dual-source write");
+ inst = emit_single_fb_write(this->outputs[0], this->dual_src_output,
+ reg_undef, 4);
inst->target = 0;
- inst->base_mrf = base_mrf;
- inst->mlen = nr - base_mrf;
- inst->eot = true;
- inst->header_present = header_present;
- if ((brw->gen >= 8 || brw->is_haswell) && prog_data->uses_kill) {
- inst->predicate = BRW_PREDICATE_NORMAL;
- inst->flag_subreg = 1;
- }
-
prog_data->dual_src_blend = true;
- this->current_annotation = NULL;
- return;
- }
-
- for (int target = 0; target < key->nr_color_regions; target++) {
- this->current_annotation = ralloc_asprintf(this->mem_ctx,
- "FB write target %d",
- target);
- /* If src0_alpha_to_render_target is true, include source zero alpha
- * data in RenderTargetWrite message for targets > 0.
- */
- int write_color_mrf = color_mrf;
- if (src0_alpha_to_render_target && target != 0) {
- fs_inst *inst;
- fs_reg color = offset(outputs[0], 3);
-
- inst = emit(MOV(fs_reg(MRF, write_color_mrf, color.type),
- color));
- inst->saturate = key->clamp_fragment_color;
- write_color_mrf = color_mrf + reg_width;
- }
-
- for (unsigned i = 0; i < this->output_components[target]; i++)
- emit_color_write(target, i, write_color_mrf);
-
- bool eot = false;
- if (target == key->nr_color_regions - 1) {
- eot = true;
-
- if (INTEL_DEBUG & DEBUG_SHADER_TIME)
+ } else if (key->nr_color_regions > 0) {
+ for (int target = 0; target < key->nr_color_regions; target++) {
+ this->current_annotation = ralloc_asprintf(this->mem_ctx,
+ "FB write target %d",
+ target);
+ fs_reg src0_alpha;
+ if (brw->gen >= 6 && key->replicate_alpha && target != 0)
+ src0_alpha = offset(outputs[0], 3);
+
+ if (target == key->nr_color_regions - 1 &&
+ (INTEL_DEBUG & DEBUG_SHADER_TIME))
emit_shader_time_end();
- }
- fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
- inst->target = target;
- inst->base_mrf = base_mrf;
- if (src0_alpha_to_render_target && target == 0)
- inst->mlen = nr - base_mrf - reg_width;
- else
- inst->mlen = nr - base_mrf;
- inst->eot = eot;
- inst->header_present = header_present;
- if ((brw->gen >= 8 || brw->is_haswell) && prog_data->uses_kill) {
- inst->predicate = BRW_PREDICATE_NORMAL;
- inst->flag_subreg = 1;
+ inst = emit_single_fb_write(this->outputs[target], reg_undef,
+ src0_alpha,
+ this->output_components[target]);
+ inst->target = target;
}
- }
+ } else {
+ if (INTEL_DEBUG & DEBUG_SHADER_TIME)
+ emit_shader_time_end();
- if (key->nr_color_regions == 0) {
/* Even if there's no color buffers enabled, we still need to send
* alpha out the pipeline to our null renderbuffer to support
* alpha-testing, alpha-to-coverage, and so on.
*/
- emit_color_write(0, 3, color_mrf);
-
- if (INTEL_DEBUG & DEBUG_SHADER_TIME)
- emit_shader_time_end();
-
- fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
- inst->base_mrf = base_mrf;
- inst->mlen = nr - base_mrf;
- inst->eot = true;
- inst->header_present = header_present;
- if ((brw->gen >= 8 || brw->is_haswell) && prog_data->uses_kill) {
- inst->predicate = BRW_PREDICATE_NORMAL;
- inst->flag_subreg = 1;
- }
+ inst = emit_single_fb_write(reg_undef, reg_undef, reg_undef, 0);
+ inst->target = 0;
}
+ inst->eot = true;
this->current_annotation = NULL;
}
projects / mesa.git / blobdiff