namespace brw {
-vec4_gs_visitor::vec4_gs_visitor(struct brw_context *brw,
+vec4_gs_visitor::vec4_gs_visitor(const struct brw_compiler *compiler,
+ void *log_data,
struct brw_gs_compile *c,
struct gl_shader_program *prog,
void *mem_ctx,
- bool no_spills)
- : vec4_visitor(brw, &c->base, &c->gp->program.Base, &c->key.base,
+ bool no_spills,
+ int shader_time_index)
+ : vec4_visitor(compiler, log_data,
+ &c->gp->program.Base, &c->key.base,
&c->prog_data.base, prog, MESA_SHADER_GEOMETRY, mem_ctx,
- INTEL_DEBUG & DEBUG_GS, no_spills,
- ST_GS, ST_GS_WRITTEN, ST_GS_RESET),
+ no_spills, shader_time_index),
c(c)
{
}
dst_reg *
-vec4_gs_visitor::make_reg_for_system_value(ir_variable *ir)
+vec4_gs_visitor::make_reg_for_system_value(int location,
+ const glsl_type *type)
{
- dst_reg *reg = new(mem_ctx) dst_reg(this, ir->type);
+ dst_reg *reg = new(mem_ctx) dst_reg(this, type);
- switch (ir->data.location) {
+ switch (location) {
case SYSTEM_VALUE_INVOCATION_ID:
this->current_annotation = "initialize gl_InvocationID";
emit(GS_OPCODE_GET_INSTANCE_ID, *reg);
* to be interleaved, so one register contains two attribute slots.
*/
int attributes_per_reg =
- c->prog_data.dispatch_mode == GEN7_GS_DISPATCH_MODE_DUAL_OBJECT ? 1 : 2;
+ c->prog_data.base.dispatch_mode == DISPATCH_MODE_4X2_DUAL_OBJECT ? 1 : 2;
/* If a geometry shader tries to read from an input that wasn't written by
* the vertex shader, that produces undefined results, but it shouldn't
/* We need to increment Global Offset by 1 to make room for Broadwell's
* extra "Vertex Count" payload at the beginning of the URB entry.
*/
- if (brw->gen >= 8)
+ if (devinfo->gen >= 8)
inst->offset++;
inst->urb_write_flags = BRW_URB_WRITE_PER_SLOT_OFFSET;
if (c->control_data_header_size_bits > 128)
urb_write_flags = urb_write_flags | BRW_URB_WRITE_PER_SLOT_OFFSET;
- /* If vertex_count is 0, then no control data bits have been accumulated
- * yet, so we should do nothing.
+ /* If we are using either channel masks or a per-slot offset, then we
+ * need to figure out which DWORD we are trying to write to, using the
+ * formula:
+ *
+ * dword_index = (vertex_count - 1) * bits_per_vertex / 32
+ *
+ * Since bits_per_vertex is a power of two, and is known at compile
+ * time, this can be optimized to:
+ *
+ * dword_index = (vertex_count - 1) >> (6 - log2(bits_per_vertex))
*/
- emit(CMP(dst_null_d(), this->vertex_count, 0u, BRW_CONDITIONAL_NEQ));
- emit(IF(BRW_PREDICATE_NORMAL));
- {
- /* If we are using either channel masks or a per-slot offset, then we
- * need to figure out which DWORD we are trying to write to, using the
- * formula:
- *
- * dword_index = (vertex_count - 1) * bits_per_vertex / 32
- *
- * Since bits_per_vertex is a power of two, and is known at compile
- * time, this can be optimized to:
- *
- * dword_index = (vertex_count - 1) >> (6 - log2(bits_per_vertex))
+ src_reg dword_index(this, glsl_type::uint_type);
+ if (urb_write_flags) {
+ src_reg prev_count(this, glsl_type::uint_type);
+ emit(ADD(dst_reg(prev_count), this->vertex_count, 0xffffffffu));
+ unsigned log2_bits_per_vertex =
+ _mesa_fls(c->control_data_bits_per_vertex);
+ emit(SHR(dst_reg(dword_index), prev_count,
+ (uint32_t) (6 - log2_bits_per_vertex)));
+ }
+
+ /* Start building the URB write message. The first MRF gets a copy of
+ * R0.
+ */
+ int base_mrf = 1;
+ dst_reg mrf_reg(MRF, base_mrf);
+ src_reg r0(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD));
+ vec4_instruction *inst = emit(MOV(mrf_reg, r0));
+ inst->force_writemask_all = true;
+
+ if (urb_write_flags & BRW_URB_WRITE_PER_SLOT_OFFSET) {
+ /* Set the per-slot offset to dword_index / 4, to that we'll write to
+ * the appropriate OWORD within the control data header.
*/
- src_reg dword_index(this, glsl_type::uint_type);
- if (urb_write_flags) {
- src_reg prev_count(this, glsl_type::uint_type);
- emit(ADD(dst_reg(prev_count), this->vertex_count, 0xffffffffu));
- unsigned log2_bits_per_vertex =
- _mesa_fls(c->control_data_bits_per_vertex);
- emit(SHR(dst_reg(dword_index), prev_count,
- (uint32_t) (6 - log2_bits_per_vertex)));
- }
+ src_reg per_slot_offset(this, glsl_type::uint_type);
+ emit(SHR(dst_reg(per_slot_offset), dword_index, 2u));
+ emit(GS_OPCODE_SET_WRITE_OFFSET, mrf_reg, per_slot_offset, 1u);
+ }
- /* Start building the URB write message. The first MRF gets a copy of
- * R0.
+ if (urb_write_flags & BRW_URB_WRITE_USE_CHANNEL_MASKS) {
+ /* Set the channel masks to 1 << (dword_index % 4), so that we'll
+ * write to the appropriate DWORD within the OWORD. We need to do
+ * this computation with force_writemask_all, otherwise garbage data
+ * from invocation 0 might clobber the mask for invocation 1 when
+ * GS_OPCODE_PREPARE_CHANNEL_MASKS tries to OR the two masks
+ * together.
*/
- int base_mrf = 1;
- dst_reg mrf_reg(MRF, base_mrf);
- src_reg r0(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD));
- vec4_instruction *inst = emit(MOV(mrf_reg, r0));
+ src_reg channel(this, glsl_type::uint_type);
+ inst = emit(AND(dst_reg(channel), dword_index, 3u));
inst->force_writemask_all = true;
-
- if (urb_write_flags & BRW_URB_WRITE_PER_SLOT_OFFSET) {
- /* Set the per-slot offset to dword_index / 4, to that we'll write to
- * the appropriate OWORD within the control data header.
- */
- src_reg per_slot_offset(this, glsl_type::uint_type);
- emit(SHR(dst_reg(per_slot_offset), dword_index, 2u));
- emit(GS_OPCODE_SET_WRITE_OFFSET, mrf_reg, per_slot_offset, 1u);
- }
-
- if (urb_write_flags & BRW_URB_WRITE_USE_CHANNEL_MASKS) {
- /* Set the channel masks to 1 << (dword_index % 4), so that we'll
- * write to the appropriate DWORD within the OWORD. We need to do
- * this computation with force_writemask_all, otherwise garbage data
- * from invocation 0 might clobber the mask for invocation 1 when
- * GS_OPCODE_PREPARE_CHANNEL_MASKS tries to OR the two masks
- * together.
- */
- src_reg channel(this, glsl_type::uint_type);
- inst = emit(AND(dst_reg(channel), dword_index, 3u));
- inst->force_writemask_all = true;
- src_reg one(this, glsl_type::uint_type);
- inst = emit(MOV(dst_reg(one), 1u));
- inst->force_writemask_all = true;
- src_reg channel_mask(this, glsl_type::uint_type);
- inst = emit(SHL(dst_reg(channel_mask), one, channel));
- inst->force_writemask_all = true;
- emit(GS_OPCODE_PREPARE_CHANNEL_MASKS, dst_reg(channel_mask),
- channel_mask);
- emit(GS_OPCODE_SET_CHANNEL_MASKS, mrf_reg, channel_mask);
- }
-
- /* Store the control data bits in the message payload and send it. */
- dst_reg mrf_reg2(MRF, base_mrf + 1);
- inst = emit(MOV(mrf_reg2, this->control_data_bits));
+ src_reg one(this, glsl_type::uint_type);
+ inst = emit(MOV(dst_reg(one), 1u));
inst->force_writemask_all = true;
- inst = emit(GS_OPCODE_URB_WRITE);
- inst->urb_write_flags = urb_write_flags;
- /* We need to increment Global Offset by 256-bits to make room for
- * Broadwell's extra "Vertex Count" payload at the beginning of the
- * URB entry. Since this is an OWord message, Global Offset is counted
- * in 128-bit units, so we must set it to 2.
- */
- if (brw->gen >= 8)
- inst->offset = 2;
- inst->base_mrf = base_mrf;
- inst->mlen = 2;
+ src_reg channel_mask(this, glsl_type::uint_type);
+ inst = emit(SHL(dst_reg(channel_mask), one, channel));
+ inst->force_writemask_all = true;
+ emit(GS_OPCODE_PREPARE_CHANNEL_MASKS, dst_reg(channel_mask),
+ channel_mask);
+ emit(GS_OPCODE_SET_CHANNEL_MASKS, mrf_reg, channel_mask);
}
- emit(BRW_OPCODE_ENDIF);
+
+ /* Store the control data bits in the message payload and send it. */
+ dst_reg mrf_reg2(MRF, base_mrf + 1);
+ inst = emit(MOV(mrf_reg2, this->control_data_bits));
+ inst->force_writemask_all = true;
+ inst = emit(GS_OPCODE_URB_WRITE);
+ inst->urb_write_flags = urb_write_flags;
+ /* We need to increment Global Offset by 256-bits to make room for
+ * Broadwell's extra "Vertex Count" payload at the beginning of the
+ * URB entry. Since this is an OWord message, Global Offset is counted
+ * in 128-bit units, so we must set it to 2.
+ */
+ if (devinfo->gen >= 8)
+ inst->offset = 2;
+ inst->base_mrf = base_mrf;
+ inst->mlen = 2;
}
void
{
this->current_annotation = "emit vertex: safety check";
+ /* Haswell and later hardware ignores the "Render Stream Select" bits
+ * from the 3DSTATE_STREAMOUT packet when the SOL stage is disabled,
+ * and instead sends all primitives down the pipeline for rasterization.
+ * If the SOL stage is enabled, "Render Stream Select" is honored and
+ * primitives bound to non-zero streams are discarded after stream output.
+ *
+ * Since the only purpose of primives sent to non-zero streams is to
+ * be recorded by transform feedback, we can simply discard all geometry
+ * bound to these streams when transform feedback is disabled.
+ */
+ if (ir->stream_id() > 0 && shader_prog->TransformFeedback.NumVarying == 0)
+ return;
+
/* To ensure that we don't output more vertices than the shader specified
* using max_vertices, do the logic inside a conditional of the form "if
* (vertex_count < MAX)"
emit(AND(dst_null_d(), this->vertex_count,
(uint32_t) (32 / c->control_data_bits_per_vertex - 1)));
inst->conditional_mod = BRW_CONDITIONAL_Z;
+
emit(IF(BRW_PREDICATE_NORMAL));
{
+ /* If vertex_count is 0, then no control data bits have been
+ * accumulated yet, so we skip emitting them.
+ */
+ emit(CMP(dst_null_d(), this->vertex_count, 0u,
+ BRW_CONDITIONAL_NEQ));
+ emit(IF(BRW_PREDICATE_NORMAL));
emit_control_data_bits();
+ emit(BRW_OPCODE_ENDIF);
/* Reset control_data_bits to 0 so we can start accumulating a new
* batch.
const cfg_t *cfg,
unsigned *final_assembly_size)
{
- vec4_generator g(brw, shader_prog, prog, prog_data, mem_ctx,
- INTEL_DEBUG & DEBUG_GS);
+ vec4_generator g(brw->intelScreen->compiler, brw,
+ shader_prog, prog, prog_data, mem_ctx,
+ INTEL_DEBUG & DEBUG_GS, "geometry", "GS");
return g.generate_assembly(cfg, final_assembly_size);
}
brw_dump_ir("geometry", prog, &shader->base, NULL);
}
+ int st_index = -1;
+ if (INTEL_DEBUG & DEBUG_SHADER_TIME)
+ st_index = brw_get_shader_time_index(brw, prog, NULL, ST_GS);
+
if (brw->gen >= 7) {
/* Compile the geometry shader in DUAL_OBJECT dispatch mode, if we can do
* so without spilling. If the GS invocations count > 1, then we can't use
*/
if (c->prog_data.invocations <= 1 &&
likely(!(INTEL_DEBUG & DEBUG_NO_DUAL_OBJECT_GS))) {
- c->prog_data.dispatch_mode = GEN7_GS_DISPATCH_MODE_DUAL_OBJECT;
+ c->prog_data.base.dispatch_mode = DISPATCH_MODE_4X2_DUAL_OBJECT;
- vec4_gs_visitor v(brw, c, prog, mem_ctx, true /* no_spills */);
- if (v.run()) {
+ vec4_gs_visitor v(brw->intelScreen->compiler, brw,
+ c, prog, mem_ctx, true /* no_spills */, st_index);
+ if (v.run(NULL /* clip planes */)) {
return generate_assembly(brw, prog, &c->gp->program.Base,
&c->prog_data.base, mem_ctx, v.cfg,
final_assembly_size);
* SINGLE mode.
*/
if (c->prog_data.invocations <= 1 || brw->gen < 7)
- c->prog_data.dispatch_mode = GEN7_GS_DISPATCH_MODE_SINGLE;
+ c->prog_data.base.dispatch_mode = DISPATCH_MODE_4X1_SINGLE;
else
- c->prog_data.dispatch_mode = GEN7_GS_DISPATCH_MODE_DUAL_INSTANCE;
+ c->prog_data.base.dispatch_mode = DISPATCH_MODE_4X2_DUAL_INSTANCE;
vec4_gs_visitor *gs = NULL;
const unsigned *ret = NULL;
if (brw->gen >= 7)
- gs = new vec4_gs_visitor(brw, c, prog, mem_ctx, false /* no_spills */);
+ gs = new vec4_gs_visitor(brw->intelScreen->compiler, brw,
+ c, prog, mem_ctx, false /* no_spills */,
+ st_index);
else
- gs = new gen6_gs_visitor(brw, c, prog, mem_ctx, false /* no_spills */);
+ gs = new gen6_gs_visitor(brw->intelScreen->compiler, brw,
+ c, prog, mem_ctx, false /* no_spills */,
+ st_index);
- if (!gs->run()) {
+ if (!gs->run(NULL /* clip planes */)) {
prog->LinkStatus = false;
ralloc_strcat(&prog->InfoLog, gs->fail_msg);
} else {
projects / mesa.git / blobdiff