if (variable_storage(ir))
return;
- if (ir->mode == ir_var_shader_in) {
+ if (ir->data.mode == ir_var_shader_in) {
if (!strcmp(ir->name, "gl_FragCoord")) {
reg = emit_fragcoord_interpolation(ir);
} else if (!strcmp(ir->name, "gl_FrontFacing")) {
assert(reg);
hash_table_insert(this->variable_ht, reg, ir);
return;
- } else if (ir->mode == ir_var_shader_out) {
+ } else if (ir->data.mode == ir_var_shader_out) {
reg = new(this->mem_ctx) fs_reg(this, ir->type);
- if (ir->index > 0) {
- assert(ir->location == FRAG_RESULT_DATA0);
- assert(ir->index == 1);
+ if (ir->data.index > 0) {
+ assert(ir->data.location == FRAG_RESULT_DATA0);
+ assert(ir->data.index == 1);
this->dual_src_output = *reg;
- } else if (ir->location == FRAG_RESULT_COLOR) {
+ } else if (ir->data.location == FRAG_RESULT_COLOR) {
/* Writing gl_FragColor outputs to all color regions. */
for (unsigned int i = 0; i < MAX2(c->key.nr_color_regions, 1); i++) {
this->outputs[i] = *reg;
this->output_components[i] = 4;
}
- } else if (ir->location == FRAG_RESULT_DEPTH) {
+ } else if (ir->data.location == FRAG_RESULT_DEPTH) {
this->frag_depth = *reg;
+ } else if (ir->data.location == FRAG_RESULT_SAMPLE_MASK) {
+ this->sample_mask = *reg;
} else {
/* gl_FragData or a user-defined FS output */
- assert(ir->location >= FRAG_RESULT_DATA0 &&
- ir->location < FRAG_RESULT_DATA0 + BRW_MAX_DRAW_BUFFERS);
+ assert(ir->data.location >= FRAG_RESULT_DATA0 &&
+ ir->data.location < FRAG_RESULT_DATA0 + BRW_MAX_DRAW_BUFFERS);
int vector_elements =
ir->type->is_array() ? ir->type->fields.array->vector_elements
/* General color output. */
for (unsigned int i = 0; i < MAX2(1, ir->type->length); i++) {
- int output = ir->location - FRAG_RESULT_DATA0 + i;
+ int output = ir->data.location - FRAG_RESULT_DATA0 + i;
this->outputs[output] = *reg;
this->outputs[output].reg_offset += vector_elements * i;
this->output_components[output] = vector_elements;
}
}
- } else if (ir->mode == ir_var_uniform) {
- int param_index = c->prog_data.nr_params;
+ } else if (ir->data.mode == ir_var_uniform) {
+ int param_index = uniforms;
/* Thanks to the lower_ubo_reference pass, we will see only
* ir_binop_ubo_load expressions and not ir_dereference_variable for UBO
* variables, so no need for them to be in variable_ht.
+ *
+ * Atomic counters take no uniform storage, no need to do
+ * anything here.
*/
- if (ir->is_in_uniform_block())
+ if (ir->is_in_uniform_block() || ir->type->contains_atomic())
return;
if (dispatch_width == 16) {
if (!variable_storage(ir)) {
- fail("Failed to find uniform '%s' in 16-wide\n", ir->name);
+ fail("Failed to find uniform '%s' in SIMD16\n", ir->name);
}
return;
}
reg = new(this->mem_ctx) fs_reg(UNIFORM, param_index);
reg->type = brw_type_for_base_type(ir->type);
+
+ } else if (ir->data.mode == ir_var_system_value) {
+ if (ir->data.location == SYSTEM_VALUE_SAMPLE_POS) {
+ reg = emit_samplepos_setup(ir);
+ } else if (ir->data.location == SYSTEM_VALUE_SAMPLE_ID) {
+ reg = emit_sampleid_setup(ir);
+ } else if (ir->data.location == SYSTEM_VALUE_SAMPLE_MASK_IN) {
+ reg = emit_samplemaskin_setup(ir);
+ }
}
if (!reg)
}
void
-fs_visitor::emit_lrp(fs_reg dst, fs_reg x, fs_reg y, fs_reg a)
+fs_visitor::emit_lrp(const fs_reg &dst, const fs_reg &x, const fs_reg &y,
+ const fs_reg &a)
{
if (brw->gen < 6 ||
!x.is_valid_3src() ||
emit(MUL(y_times_a, y, a));
- a.negate = !a.negate;
- emit(ADD(one_minus_a, a, fs_reg(1.0f)));
+ fs_reg negative_a = a;
+ negative_a.negate = !a.negate;
+ emit(ADD(one_minus_a, negative_a, fs_reg(1.0f)));
emit(MUL(x_times_one_minus_a, x, one_minus_a));
emit(ADD(dst, x_times_one_minus_a, y_times_a));
}
void
-fs_visitor::emit_minmax(uint32_t conditionalmod, fs_reg dst,
- fs_reg src0, fs_reg src1)
+fs_visitor::emit_minmax(uint32_t conditionalmod, const fs_reg &dst,
+ const fs_reg &src0, const fs_reg &src1)
{
fs_inst *inst;
ir->operands[operand]->accept(this);
if (this->result.file == BAD_FILE) {
fail("Failed to get tree for expression operand:\n");
- ir->operands[operand]->print();
- printf("\n");
+ ir->operands[operand]->fprint(stderr);
+ fprintf(stderr, "\n");
}
assert(this->result.is_valid_3src());
op[operand] = this->result;
emit(MOV(this->result, op[0]));
break;
case ir_unop_sign:
- temp = fs_reg(this, ir->type);
+ if (ir->type->is_float()) {
+ /* AND(val, 0x80000000) gives the sign bit.
+ *
+ * Predicated OR ORs 1.0 (0x3f800000) with the sign bit if val is not
+ * zero.
+ */
+ emit(CMP(reg_null_f, op[0], fs_reg(0.0f), BRW_CONDITIONAL_NZ));
- emit(MOV(this->result, fs_reg(0.0f)));
+ op[0].type = BRW_REGISTER_TYPE_UD;
+ this->result.type = BRW_REGISTER_TYPE_UD;
+ emit(AND(this->result, op[0], fs_reg(0x80000000u)));
- emit(CMP(reg_null_f, op[0], fs_reg(0.0f), BRW_CONDITIONAL_G));
- inst = emit(MOV(this->result, fs_reg(1.0f)));
- inst->predicate = BRW_PREDICATE_NORMAL;
+ inst = emit(OR(this->result, this->result, fs_reg(0x3f800000u)));
+ inst->predicate = BRW_PREDICATE_NORMAL;
- emit(CMP(reg_null_f, op[0], fs_reg(0.0f), BRW_CONDITIONAL_L));
- inst = emit(MOV(this->result, fs_reg(-1.0f)));
- inst->predicate = BRW_PREDICATE_NORMAL;
+ this->result.type = BRW_REGISTER_TYPE_F;
+ } else {
+ /* ASR(val, 31) -> negative val generates 0xffffffff (signed -1).
+ * -> non-negative val generates 0x00000000.
+ * Predicated OR sets 1 if val is positive.
+ */
+ emit(CMP(reg_null_d, op[0], fs_reg(0), BRW_CONDITIONAL_G));
+ emit(ASR(this->result, op[0], fs_reg(31)));
+
+ inst = emit(OR(this->result, this->result, fs_reg(1)));
+ inst->predicate = BRW_PREDICATE_NORMAL;
+ }
break;
case ir_unop_rcp:
emit_math(SHADER_OPCODE_RCP, this->result, op[0]);
break;
case ir_binop_mul:
- if (ir->type->is_integer()) {
+ if (brw->gen < 8 && ir->type->is_integer()) {
/* For integer multiplication, the MUL uses the low 16 bits
* of one of the operands (src0 on gen6, src1 on gen7). The
* MACH accumulates in the contribution of the upper 16 bits
* of that operand.
- *
- * FINISHME: Emit just the MUL if we know an operand is small
- * enough.
- */
- if (brw->gen >= 7 && dispatch_width == 16)
- fail("16-wide explicit accumulator operands unsupported\n");
-
- struct brw_reg acc = retype(brw_acc_reg(), this->result.type);
-
- emit(MUL(acc, op[0], op[1]));
- emit(MACH(reg_null_d, op[0], op[1]));
- emit(MOV(this->result, fs_reg(acc)));
+ */
+ if (ir->operands[0]->is_uint16_constant()) {
+ if (brw->gen < 7)
+ emit(MUL(this->result, op[0], op[1]));
+ else
+ emit(MUL(this->result, op[1], op[0]));
+ } else if (ir->operands[1]->is_uint16_constant()) {
+ if (brw->gen < 7)
+ emit(MUL(this->result, op[1], op[0]));
+ else
+ emit(MUL(this->result, op[0], op[1]));
+ } else {
+ if (brw->gen >= 7)
+ no16("SIMD16 explicit accumulator operands unsupported\n");
+
+ struct brw_reg acc = retype(brw_acc_reg(), this->result.type);
+
+ emit(MUL(acc, op[0], op[1]));
+ emit(MACH(reg_null_d, op[0], op[1]));
+ emit(MOV(this->result, fs_reg(acc)));
+ }
} else {
emit(MUL(this->result, op[0], op[1]));
}
break;
case ir_binop_imul_high: {
- if (brw->gen >= 7 && dispatch_width == 16)
- fail("16-wide explicit accumulator operands unsupported\n");
+ if (brw->gen >= 7)
+ no16("SIMD16 explicit accumulator operands unsupported\n");
struct brw_reg acc = retype(brw_acc_reg(), this->result.type);
emit_math(SHADER_OPCODE_INT_QUOTIENT, this->result, op[0], op[1]);
break;
case ir_binop_carry: {
- if (brw->gen >= 7 && dispatch_width == 16)
- fail("16-wide explicit accumulator operands unsupported\n");
+ if (brw->gen >= 7)
+ no16("SIMD16 explicit accumulator operands unsupported\n");
struct brw_reg acc = retype(brw_acc_reg(), BRW_REGISTER_TYPE_UD);
break;
}
case ir_binop_borrow: {
- if (brw->gen >= 7 && dispatch_width == 16)
- fail("16-wide explicit accumulator operands unsupported\n");
+ if (brw->gen >= 7)
+ no16("SIMD16 explicit accumulator operands unsupported\n");
struct brw_reg acc = retype(brw_acc_reg(), BRW_REGISTER_TYPE_UD);
packed_consts.type = result.type;
fs_reg const_offset_reg = fs_reg(const_offset->value.u[0] & ~15);
- emit(fs_inst(FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD,
- packed_consts, surf_index, const_offset_reg));
+ emit(new(mem_ctx) fs_inst(FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD,
+ packed_consts, surf_index, const_offset_reg));
- packed_consts.smear = const_offset->value.u[0] % 16 / 4;
for (int i = 0; i < ir->type->vector_elements; i++) {
+ packed_consts.set_smear(const_offset->value.u[0] % 16 / 4 + i);
+
+ /* The std140 packing rules don't allow vectors to cross 16-byte
+ * boundaries, and a reg is 32 bytes.
+ */
+ assert(packed_consts.subreg_offset < 32);
+
/* UBO bools are any nonzero value. We consider bools to be
* values with the low bit set to 1. Convert them using CMP.
*/
emit(MOV(result, packed_consts));
}
- packed_consts.smear++;
result.reg_offset++;
-
- /* The std140 packing rules don't allow vectors to cross 16-byte
- * boundaries, and a reg is 32 bytes.
- */
- assert(packed_consts.smear < 8);
}
} else {
/* Turn the byte offset into a dword offset. */
break;
case GLSL_TYPE_SAMPLER:
+ case GLSL_TYPE_IMAGE:
+ case GLSL_TYPE_ATOMIC_UINT:
break;
case GLSL_TYPE_VOID:
/* sample index */
emit(MOV(fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), sample_index));
mlen += reg_width;
- inst = emit(SHADER_OPCODE_TXF_MS, dst);
+ inst = emit(SHADER_OPCODE_TXF_CMS, dst);
break;
case ir_lod:
inst = emit(SHADER_OPCODE_LOD, dst);
inst->header_present = header_present;
inst->regs_written = 4;
- if (mlen > 11) {
- fail("Message length >11 disallowed by hardware\n");
+ if (mlen > MAX_SAMPLER_MESSAGE_SIZE) {
+ fail("Message length >" STRINGIFY(MAX_SAMPLER_MESSAGE_SIZE)
+ " disallowed by hardware\n");
}
return inst;
fs_inst *
fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
fs_reg shadow_c, fs_reg lod, fs_reg lod2,
- fs_reg sample_index)
+ fs_reg sample_index, fs_reg mcs, int sampler)
{
int reg_width = dispatch_width / 8;
bool header_present = false;
fs_reg payload = fs_reg(this, glsl_type::float_type);
fs_reg next = payload;
- if (ir->op == ir_tg4 || (ir->offset && ir->op != ir_txf)) {
+ if (ir->op == ir_tg4 || (ir->offset && ir->op != ir_txf) || sampler >= 16) {
/* For general texture offsets (no txf workaround), we need a header to
- * put them in. Note that for 16-wide we're making space for two actual
+ * put them in. Note that for SIMD16 we're making space for two actual
* hardware registers here, so the emit will have to fix up for this.
*
* * ir4_tg4 needs to place its channel select in the header,
* for interaction with ARB_texture_swizzle
+ *
+ * The sampler index is only 4-bits, so for larger sampler numbers we
+ * need to offset the Sampler State Pointer in the header.
*/
header_present = true;
next.reg_offset++;
next.reg_offset++;
break;
case ir_txd: {
- if (dispatch_width == 16)
- fail("Gen7 does not support sample_d/sample_d_c in SIMD16 mode.");
+ no16("Gen7 does not support sample_d/sample_d_c in SIMD16 mode.");
/* Load dPdx and the coordinate together:
* [hdr], [ref], x, dPdx.x, dPdy.x, y, dPdx.y, dPdy.y, z, dPdx.z, dPdy.z
break;
}
case ir_txs:
- emit(MOV(next.retype(BRW_REGISTER_TYPE_UD), lod));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_UD), lod));
next.reg_offset++;
break;
case ir_query_levels:
- emit(MOV(next.retype(BRW_REGISTER_TYPE_UD), fs_reg(0u)));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_UD), fs_reg(0u)));
next.reg_offset++;
break;
case ir_txf:
/* Unfortunately, the parameters for LD are intermixed: u, lod, v, r. */
- emit(MOV(next.retype(BRW_REGISTER_TYPE_D), coordinate));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), coordinate));
coordinate.reg_offset++;
next.reg_offset++;
- emit(MOV(next.retype(BRW_REGISTER_TYPE_D), lod));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), lod));
next.reg_offset++;
for (int i = 1; i < ir->coordinate->type->vector_elements; i++) {
- emit(MOV(next.retype(BRW_REGISTER_TYPE_D), coordinate));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), coordinate));
coordinate.reg_offset++;
next.reg_offset++;
}
coordinate_done = true;
break;
case ir_txf_ms:
- emit(MOV(next.retype(BRW_REGISTER_TYPE_UD), sample_index));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_UD), sample_index));
next.reg_offset++;
- /* constant zero MCS; we arrange to never actually have a compressed
- * multisample surface here for now. TODO: issue ld_mcs to get this first,
- * if we ever support texturing from compressed multisample surfaces
- */
- emit(MOV(next.retype(BRW_REGISTER_TYPE_UD), fs_reg(0u)));
+ /* data from the multisample control surface */
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_UD), mcs));
next.reg_offset++;
/* there is no offsetting for this message; just copy in the integer
* texture coordinates
*/
for (int i = 0; i < ir->coordinate->type->vector_elements; i++) {
- emit(MOV(next.retype(BRW_REGISTER_TYPE_D), coordinate));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), coordinate));
coordinate.reg_offset++;
next.reg_offset++;
}
break;
case ir_tg4:
if (has_nonconstant_offset) {
- if (ir->shadow_comparitor && dispatch_width == 16)
- fail("Gen7 does not support gather4_po_c in SIMD16 mode.");
+ if (ir->shadow_comparitor)
+ no16("Gen7 does not support gather4_po_c in SIMD16 mode.");
/* More crazy intermixing */
ir->offset->accept(this);
}
for (int i = 0; i < 2; i++) { /* offu, offv */
- emit(MOV(next.retype(BRW_REGISTER_TYPE_D), offset_value));
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), offset_value));
offset_value.reg_offset++;
next.reg_offset++;
}
case ir_txl: inst = emit(SHADER_OPCODE_TXL, dst, payload); break;
case ir_txd: inst = emit(SHADER_OPCODE_TXD, dst, payload); break;
case ir_txf: inst = emit(SHADER_OPCODE_TXF, dst, payload); break;
- case ir_txf_ms: inst = emit(SHADER_OPCODE_TXF_MS, dst, payload); break;
+ case ir_txf_ms: inst = emit(SHADER_OPCODE_TXF_CMS, dst, payload); break;
case ir_txs: inst = emit(SHADER_OPCODE_TXS, dst, payload); break;
case ir_query_levels: inst = emit(SHADER_OPCODE_TXS, dst, payload); break;
case ir_lod: inst = emit(SHADER_OPCODE_LOD, dst, payload); break;
inst->regs_written = 4;
virtual_grf_sizes[payload.reg] = next.reg_offset;
- if (inst->mlen > 11) {
- fail("Message length >11 disallowed by hardware\n");
+ if (inst->mlen > MAX_SAMPLER_MESSAGE_SIZE) {
+ fail("Message length >" STRINGIFY(MAX_SAMPLER_MESSAGE_SIZE)
+ " disallowed by hardware\n");
}
return inst;
0
};
+ no16("rectangle scale uniform setup not supported on SIMD16\n");
if (dispatch_width == 16) {
- fail("rectangle scale uniform setup not supported on 16-wide\n");
return coordinate;
}
- scale_x = fs_reg(UNIFORM, c->prog_data.nr_params);
- scale_y = fs_reg(UNIFORM, c->prog_data.nr_params + 1);
+ scale_x = fs_reg(UNIFORM, uniforms);
+ scale_y = fs_reg(UNIFORM, uniforms + 1);
GLuint index = _mesa_add_state_reference(params,
(gl_state_index *)tokens);
- c->prog_data.param[c->prog_data.nr_params++] =
+ stage_prog_data->param[uniforms++] =
&prog->Parameters->ParameterValues[index][0].f;
- c->prog_data.param[c->prog_data.nr_params++] =
+ stage_prog_data->param[uniforms++] =
&prog->Parameters->ParameterValues[index][1].f;
}
return coordinate;
}
+/* Sample from the MCS surface attached to this multisample texture. */
+fs_reg
+fs_visitor::emit_mcs_fetch(ir_texture *ir, fs_reg coordinate, int sampler)
+{
+ int reg_width = dispatch_width / 8;
+ fs_reg payload = fs_reg(this, glsl_type::float_type);
+ fs_reg dest = fs_reg(this, glsl_type::uvec4_type);
+ fs_reg next = payload;
+
+ /* parameters are: u, v, r, lod; missing parameters are treated as zero */
+ for (int i = 0; i < ir->coordinate->type->vector_elements; i++) {
+ emit(MOV(retype(next, BRW_REGISTER_TYPE_D), coordinate));
+ coordinate.reg_offset++;
+ next.reg_offset++;
+ }
+
+ fs_inst *inst = emit(SHADER_OPCODE_TXF_MCS, dest, payload);
+ virtual_grf_sizes[payload.reg] = next.reg_offset;
+ inst->base_mrf = -1;
+ inst->mlen = next.reg_offset * reg_width;
+ inst->header_present = false;
+ inst->regs_written = 4 * reg_width; /* we only care about one reg of response,
+ * but the sampler always writes 4/8
+ */
+ inst->sampler = sampler;
+
+ return dest;
+}
+
void
fs_visitor::visit(ir_texture *ir)
{
shadow_comparitor = this->result;
}
- fs_reg lod, lod2, sample_index;
+ fs_reg lod, lod2, sample_index, mcs;
switch (ir->op) {
case ir_tex:
case ir_lod:
case ir_txf_ms:
ir->lod_info.sample_index->accept(this);
sample_index = this->result;
+
+ if (brw->gen >= 7 && c->key.tex.compressed_multisample_layout_mask & (1<<sampler))
+ mcs = emit_mcs_fetch(ir, coordinate, sampler);
+ else
+ mcs = fs_reg(0u);
break;
default:
assert(!"Unrecognized texture opcode");
if (brw->gen >= 7) {
inst = emit_texture_gen7(ir, dst, coordinate, shadow_comparitor,
- lod, lod2, sample_index);
+ lod, lod2, sample_index, mcs, sampler);
} else if (brw->gen >= 5) {
inst = emit_texture_gen5(ir, dst, coordinate, shadow_comparitor,
lod, lod2, sample_index);
}
}
+ if (brw->gen == 6 && ir->op == ir_tg4) {
+ emit_gen6_gather_wa(c->key.tex.gen6_gather_wa[sampler], dst);
+ }
+
swizzle_result(ir, dst, sampler);
}
+/**
+ * Apply workarounds for Gen6 gather with UINT/SINT
+ */
+void
+fs_visitor::emit_gen6_gather_wa(uint8_t wa, fs_reg dst)
+{
+ if (!wa)
+ return;
+
+ int width = (wa & WA_8BIT) ? 8 : 16;
+
+ for (int i = 0; i < 4; i++) {
+ fs_reg dst_f = retype(dst, BRW_REGISTER_TYPE_F);
+ /* Convert from UNORM to UINT */
+ emit(MUL(dst_f, dst_f, fs_reg((float)((1 << width) - 1))));
+ emit(MOV(dst, dst_f));
+
+ if (wa & WA_SIGN) {
+ /* Reinterpret the UINT value as a signed INT value by
+ * shifting the sign bit into place, then shifting back
+ * preserving sign.
+ */
+ emit(SHL(dst, dst, fs_reg(32 - width)));
+ emit(ASR(dst, dst, fs_reg(32 - width)));
+ }
+
+ dst.reg_offset++;
+ }
+}
+
/**
* Set up the gather channel based on the swizzle, for gather4.
*/
void
fs_visitor::visit(ir_if *ir)
{
- if (brw->gen < 6 && dispatch_width == 16) {
- fail("Can't support (non-uniform) control flow on 16-wide\n");
+ if (brw->gen < 6) {
+ no16("Can't support (non-uniform) control flow on SIMD16\n");
}
/* Don't point the annotation at the if statement, because then it plus
void
fs_visitor::visit(ir_loop *ir)
{
- fs_reg counter = reg_undef;
-
- if (brw->gen < 6 && dispatch_width == 16) {
- fail("Can't support (non-uniform) control flow on 16-wide\n");
- }
-
- if (ir->counter) {
- this->base_ir = ir->counter;
- ir->counter->accept(this);
- counter = *(variable_storage(ir->counter));
-
- if (ir->from) {
- this->base_ir = ir->from;
- ir->from->accept(this);
-
- emit(MOV(counter, this->result));
- }
+ if (brw->gen < 6) {
+ no16("Can't support (non-uniform) control flow on SIMD16\n");
}
this->base_ir = NULL;
emit(BRW_OPCODE_DO);
- if (ir->to) {
- this->base_ir = ir->to;
- ir->to->accept(this);
-
- emit(CMP(reg_null_d, counter, this->result,
- brw_conditional_for_comparison(ir->cmp)));
-
- fs_inst *inst = emit(BRW_OPCODE_BREAK);
- inst->predicate = BRW_PREDICATE_NORMAL;
- }
-
foreach_list(node, &ir->body_instructions) {
ir_instruction *ir = (ir_instruction *)node;
ir->accept(this);
}
- if (ir->increment) {
- this->base_ir = ir->increment;
- ir->increment->accept(this);
- emit(ADD(counter, counter, this->result));
- }
-
this->base_ir = NULL;
emit(BRW_OPCODE_WHILE);
}
}
}
+void
+fs_visitor::visit_atomic_counter_intrinsic(ir_call *ir)
+{
+ ir_dereference *deref = static_cast<ir_dereference *>(
+ ir->actual_parameters.get_head());
+ ir_variable *location = deref->variable_referenced();
+ unsigned surf_index = (c->prog_data.base.binding_table.abo_start +
+ location->data.atomic.buffer_index);
+
+ /* Calculate the surface offset */
+ fs_reg offset(this, glsl_type::uint_type);
+ ir_dereference_array *deref_array = deref->as_dereference_array();
+
+ if (deref_array) {
+ deref_array->array_index->accept(this);
+
+ fs_reg tmp(this, glsl_type::uint_type);
+ emit(MUL(tmp, this->result, ATOMIC_COUNTER_SIZE));
+ emit(ADD(offset, tmp, location->data.atomic.offset));
+ } else {
+ offset = location->data.atomic.offset;
+ }
+
+ /* Emit the appropriate machine instruction */
+ const char *callee = ir->callee->function_name();
+ ir->return_deref->accept(this);
+ fs_reg dst = this->result;
+
+ if (!strcmp("__intrinsic_atomic_read", callee)) {
+ emit_untyped_surface_read(surf_index, dst, offset);
+
+ } else if (!strcmp("__intrinsic_atomic_increment", callee)) {
+ emit_untyped_atomic(BRW_AOP_INC, surf_index, dst, offset,
+ fs_reg(), fs_reg());
+
+ } else if (!strcmp("__intrinsic_atomic_predecrement", callee)) {
+ emit_untyped_atomic(BRW_AOP_PREDEC, surf_index, dst, offset,
+ fs_reg(), fs_reg());
+ }
+}
+
void
fs_visitor::visit(ir_call *ir)
{
- assert(!"FINISHME");
+ const char *callee = ir->callee->function_name();
+
+ if (!strcmp("__intrinsic_atomic_read", callee) ||
+ !strcmp("__intrinsic_atomic_increment", callee) ||
+ !strcmp("__intrinsic_atomic_predecrement", callee)) {
+ visit_atomic_counter_intrinsic(ir);
+ } else {
+ assert(!"Unsupported intrinsic.");
+ }
}
void
assert(!"not reached");
}
-fs_inst *
-fs_visitor::emit(fs_inst inst)
+void
+fs_visitor::emit_untyped_atomic(unsigned atomic_op, unsigned surf_index,
+ fs_reg dst, fs_reg offset, fs_reg src0,
+ fs_reg src1)
+{
+ const unsigned operand_len = dispatch_width / 8;
+ unsigned mlen = 0;
+
+ /* Initialize the sample mask in the message header. */
+ emit(MOV(brw_uvec_mrf(8, mlen, 0), brw_imm_ud(0)))
+ ->force_writemask_all = true;
+
+ if (fp->UsesKill) {
+ emit(MOV(brw_uvec_mrf(1, mlen, 7), brw_flag_reg(0, 1)))
+ ->force_writemask_all = true;
+ } else {
+ emit(MOV(brw_uvec_mrf(1, mlen, 7),
+ retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UD)))
+ ->force_writemask_all = true;
+ }
+
+ mlen++;
+
+ /* Set the atomic operation offset. */
+ emit(MOV(brw_uvec_mrf(dispatch_width, mlen, 0), offset));
+ mlen += operand_len;
+
+ /* Set the atomic operation arguments. */
+ if (src0.file != BAD_FILE) {
+ emit(MOV(brw_uvec_mrf(dispatch_width, mlen, 0), src0));
+ mlen += operand_len;
+ }
+
+ if (src1.file != BAD_FILE) {
+ emit(MOV(brw_uvec_mrf(dispatch_width, mlen, 0), src1));
+ mlen += operand_len;
+ }
+
+ /* Emit the instruction. */
+ fs_inst *inst = new(mem_ctx) fs_inst(SHADER_OPCODE_UNTYPED_ATOMIC, dst,
+ atomic_op, surf_index);
+ inst->base_mrf = 0;
+ inst->mlen = mlen;
+ emit(inst);
+}
+
+void
+fs_visitor::emit_untyped_surface_read(unsigned surf_index, fs_reg dst,
+ fs_reg offset)
{
- fs_inst *list_inst = new(mem_ctx) fs_inst;
- *list_inst = inst;
- emit(list_inst);
- return list_inst;
+ const unsigned operand_len = dispatch_width / 8;
+ unsigned mlen = 0;
+
+ /* Initialize the sample mask in the message header. */
+ emit(MOV(brw_uvec_mrf(8, mlen, 0), brw_imm_ud(0)))
+ ->force_writemask_all = true;
+
+ if (fp->UsesKill) {
+ emit(MOV(brw_uvec_mrf(1, mlen, 7), brw_flag_reg(0, 1)))
+ ->force_writemask_all = true;
+ } else {
+ emit(MOV(brw_uvec_mrf(1, mlen, 7),
+ retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UD)))
+ ->force_writemask_all = true;
+ }
+
+ mlen++;
+
+ /* Set the surface read offset. */
+ emit(MOV(brw_uvec_mrf(dispatch_width, mlen, 0), offset));
+ mlen += operand_len;
+
+ /* Emit the instruction. */
+ fs_inst *inst = new(mem_ctx)
+ fs_inst(SHADER_OPCODE_UNTYPED_SURFACE_READ, dst, surf_index);
+ inst->base_mrf = 0;
+ inst->mlen = mlen;
+ emit(inst);
}
fs_inst *
{
if (force_uncompressed_stack > 0)
inst->force_uncompressed = true;
- else if (force_sechalf_stack > 0)
- inst->force_sechalf = true;
inst->annotation = this->current_annotation;
inst->ir = this->base_ir;
inst->saturate = c->key.clamp_fragment_color;
pop_force_uncompressed();
- push_force_sechalf();
- color.sechalf = true;
inst = emit(MOV(fs_reg(MRF, first_color_mrf + index + 4, color.type),
- color));
+ half(color, 1)));
+ inst->force_sechalf = true;
inst->saturate = c->key.clamp_fragment_color;
- pop_force_sechalf();
- color.sechalf = false;
}
}
}
+static int
+cond_for_alpha_func(GLenum func)
+{
+ switch(func) {
+ case GL_GREATER:
+ return BRW_CONDITIONAL_G;
+ case GL_GEQUAL:
+ return BRW_CONDITIONAL_GE;
+ case GL_LESS:
+ return BRW_CONDITIONAL_L;
+ case GL_LEQUAL:
+ return BRW_CONDITIONAL_LE;
+ case GL_EQUAL:
+ return BRW_CONDITIONAL_EQ;
+ case GL_NOTEQUAL:
+ return BRW_CONDITIONAL_NEQ;
+ default:
+ assert(!"Not reached");
+ return 0;
+ }
+}
+
+/**
+ * Alpha test support for when we compile it into the shader instead
+ * of using the normal fixed-function alpha test.
+ */
+void
+fs_visitor::emit_alpha_test()
+{
+ this->current_annotation = "Alpha test";
+
+ fs_inst *cmp;
+ if (c->key.alpha_test_func == GL_ALWAYS)
+ return;
+
+ if (c->key.alpha_test_func == GL_NEVER) {
+ /* f0.1 = 0 */
+ fs_reg some_reg = fs_reg(retype(brw_vec8_grf(0, 0),
+ BRW_REGISTER_TYPE_UW));
+ cmp = emit(CMP(reg_null_f, some_reg, some_reg,
+ BRW_CONDITIONAL_NEQ));
+ } else {
+ /* RT0 alpha */
+ fs_reg color = outputs[0];
+ color.reg_offset += 3;
+
+ /* f0.1 &= func(color, ref) */
+ cmp = emit(CMP(reg_null_f, color, fs_reg(c->key.alpha_test_ref),
+ cond_for_alpha_func(c->key.alpha_test_func)));
+ }
+ cmp->predicate = BRW_PREDICATE_NORMAL;
+ cmp->flag_subreg = 1;
+}
+
void
fs_visitor::emit_fb_writes()
{
bool do_dual_src = this->dual_src_output.file != BAD_FILE;
bool src0_alpha_to_render_target = false;
- if (dispatch_width == 16 && do_dual_src) {
- fail("GL_ARB_blend_func_extended not yet supported in 16-wide.");
- do_dual_src = 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:
* thread message and on all dual-source messages."
*/
if (brw->gen >= 6 &&
- !this->fp->UsesKill &&
+ (brw->is_haswell || brw->gen >= 8 || !this->fp->UsesKill) &&
!do_dual_src &&
c->key.nr_color_regions == 1) {
header_present = false;
pop_force_uncompressed();
}
+ c->prog_data.uses_omask =
+ fp->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK);
+ if(c->prog_data.uses_omask) {
+ this->current_annotation = "FB write oMask";
+ assert(this->sample_mask.file != BAD_FILE);
+ /* Hand over gl_SampleMask. Only lower 16 bits are relevant. */
+ emit(FS_OPCODE_SET_OMASK, fs_reg(MRF, nr, BRW_REGISTER_TYPE_UW), this->sample_mask);
+ nr += 1;
+ }
+
/* Reserve space for color. It'll be filled in per MRT below. */
int color_mrf = nr;
nr += 4 * reg_width;
nr += reg_width;
if (c->source_depth_to_render_target) {
- if (brw->gen == 6 && dispatch_width == 16) {
+ if (brw->gen == 6) {
/* For outputting oDepth on gen6, SIMD8 writes have to be
- * used. This would require 8-wide moves of each half to
+ * used. This would require SIMD8 moves of each half to
* message regs, kind of like pre-gen5 SIMD16 FB writes.
* Just bail on doing so for now.
*/
- fail("Missing support for simd16 depth writes on gen6\n");
+ no16("Missing support for simd16 depth writes on gen6\n");
}
if (prog->OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
inst->mlen = nr - base_mrf;
inst->eot = true;
inst->header_present = header_present;
+ if ((brw->gen >= 8 || brw->is_haswell) && fp->UsesKill) {
+ inst->predicate = BRW_PREDICATE_NORMAL;
+ inst->flag_subreg = 1;
+ }
c->prog_data.dual_src_blend = true;
this->current_annotation = NULL;
inst->mlen = nr - base_mrf;
inst->eot = eot;
inst->header_present = header_present;
+ if ((brw->gen >= 8 || brw->is_haswell) && fp->UsesKill) {
+ inst->predicate = BRW_PREDICATE_NORMAL;
+ inst->flag_subreg = 1;
+ }
}
if (c->key.nr_color_regions == 0) {
inst->mlen = nr - base_mrf;
inst->eot = true;
inst->header_present = header_present;
+ if ((brw->gen >= 8 || brw->is_haswell) && fp->UsesKill) {
+ inst->predicate = BRW_PREDICATE_NORMAL;
+ inst->flag_subreg = 1;
+ }
}
this->current_annotation = NULL;
struct gl_shader_program *shader_prog,
struct gl_fragment_program *fp,
unsigned dispatch_width)
- : dispatch_width(dispatch_width)
+ : backend_visitor(brw, shader_prog, &fp->Base, &c->prog_data.base,
+ MESA_SHADER_FRAGMENT),
+ dispatch_width(dispatch_width)
{
this->c = c;
- this->brw = brw;
this->fp = fp;
- this->prog = &fp->Base;
- this->shader_prog = shader_prog;
- this->prog = &fp->Base;
- this->stage_prog_data = &c->prog_data.base;
- this->ctx = &brw->ctx;
this->mem_ctx = ralloc_context(NULL);
- if (shader_prog)
- shader = (struct brw_shader *)
- shader_prog->_LinkedShaders[MESA_SHADER_FRAGMENT];
- else
- shader = NULL;
this->failed = false;
+ this->simd16_unsupported = false;
+ this->no16_msg = NULL;
this->variable_ht = hash_table_ctor(0,
hash_table_pointer_hash,
hash_table_pointer_compare);
this->virtual_grf_start = NULL;
this->virtual_grf_end = NULL;
this->live_intervals = NULL;
+ this->regs_live_at_ip = NULL;
- this->params_remap = NULL;
- this->nr_params_remap = 0;
+ this->uniforms = 0;
+ this->pull_constant_loc = NULL;
+ this->push_constant_loc = NULL;
this->force_uncompressed_stack = 0;
- this->force_sechalf_stack = 0;
- memset(&this->param_size, 0, sizeof(this->param_size));
+ this->spilled_any_registers = false;
+
+ if (dispatch_width == 8)
+ this->param_size = rzalloc_array(mem_ctx, int, stage_prog_data->nr_params);
}
fs_visitor::~fs_visitor()
projects / mesa.git / blobdiff