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i965: eliminate gen6_xfb_enabled field in brw_gs_prog_data

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We can just get this information from shader_info instead.

Note that passing gen6_gs_visitor() gl_program via _LinkedShaders
will go away in a later patch.

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Timothy Arceri 2016-11-08 10:05:42 +11:00
parent 6643da6d7f
commit 340b22c217
5 changed files with 11 additions and 20 deletions
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5
src/mesa/drivers/dri/i965/brw_compiler.h
View file

@ -710,11 +710,6 @@ struct brw_gs_prog_data
int invocations;
/**
* Gen6 transform feedback enabled flag.
*/
bool gen6_xfb_enabled;
/**
* Gen6: Provoking vertex convention for odd-numbered triangles
* in tristrips.

7
src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
View file

@ -665,12 +665,6 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
} else {
/* There are no control data bits in gen6. */
c.control_data_bits_per_vertex = 0;
/* If it is using transform feedback, enable it */
if (shader->info->has_transform_feedback_varyings)
prog_data->gen6_xfb_enabled = true;
else
prog_data->gen6_xfb_enabled = false;
}
c.control_data_header_size_bits =
shader->info->gs.vertices_out * c.control_data_bits_per_vertex;
@ -900,6 +894,7 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
shader_time_index);
else
gs = new gen6_gs_visitor(compiler, log_data, &c, prog_data, shader_prog,
shader_prog->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program,
shader, mem_ctx, false /* no_spills */,
shader_time_index);

4
src/mesa/drivers/dri/i965/gen6_gs_state.c
View file

@ -100,8 +100,6 @@ upload_gs_state(struct brw_context *brw)
const struct brw_stage_prog_data *prog_data = stage_state->prog_data;
const struct brw_vue_prog_data *vue_prog_data =
brw_vue_prog_data(stage_state->prog_data);
const struct brw_gs_prog_data *gs_prog_data =
brw_gs_prog_data(stage_state->prog_data);
if (!active || stage_state->push_const_size == 0) {
/* Disable the push constant buffers. */
@ -164,7 +162,7 @@ upload_gs_state(struct brw_context *brw)
GEN6_GS_SO_STATISTICS_ENABLE |
GEN6_GS_RENDERING_ENABLE);
if (gs_prog_data->gen6_xfb_enabled) {
if (brw->geometry_program->info.has_transform_feedback_varyings) {
/* GEN6_GS_REORDER is equivalent to GEN7_GS_REORDER_TRAILING
* in gen7. SNB and IVB specs are the same regarding the reordering of
* TRISTRIP/TRISTRIP_REV vertices and triangle orientation, so we do

8
src/mesa/drivers/dri/i965/gen6_gs_visitor.cpp
View file

@ -96,7 +96,7 @@ gen6_gs_visitor::emit_prolog()
this->prim_count = src_reg(this, glsl_type::uint_type);
emit(MOV(dst_reg(this->prim_count), brw_imm_ud(0u)));
if (gs_prog_data->gen6_xfb_enabled) {
if (prog->info.has_transform_feedback_varyings) {
/* Create a virtual register to hold destination indices in SOL */
this->destination_indices = src_reg(this, glsl_type::uvec4_type);
/* Create a virtual register to hold number of written primitives */
@ -356,7 +356,7 @@ gen6_gs_visitor::emit_thread_end()
this->current_annotation = "gen6 thread end: ff_sync";
vec4_instruction *inst;
if (gs_prog_data->gen6_xfb_enabled) {
if (prog->info.has_transform_feedback_varyings) {
src_reg sol_temp(this, glsl_type::uvec4_type);
emit(GS_OPCODE_FF_SYNC_SET_PRIMITIVES,
dst_reg(this->svbi),
@ -446,7 +446,7 @@ gen6_gs_visitor::emit_thread_end()
}
emit(BRW_OPCODE_WHILE);
if (gs_prog_data->gen6_xfb_enabled)
if (prog->info.has_transform_feedback_varyings)
xfb_write();
}
emit(BRW_OPCODE_ENDIF);
@ -468,7 +468,7 @@ gen6_gs_visitor::emit_thread_end()
*/
this->current_annotation = "gen6 thread end: EOT";
if (gs_prog_data->gen6_xfb_enabled) {
if (prog->info.has_transform_feedback_varyings) {
/* When emitting EOT, set SONumPrimsWritten Increment Value. */
src_reg data(this, glsl_type::uint_type);
emit(AND(dst_reg(data), this->sol_prim_written, brw_imm_ud(0xffffu)));

7
src/mesa/drivers/dri/i965/gen6_gs_visitor.h
View file

@ -39,14 +39,16 @@ public:
void *log_data,
struct brw_gs_compile *c,
struct brw_gs_prog_data *prog_data,
struct gl_shader_program *prog,
struct gl_shader_program *sh_prog,
struct gl_program *prog,
const nir_shader *shader,
void *mem_ctx,
bool no_spills,
int shader_time_index) :
vec4_gs_visitor(comp, log_data, c, prog_data, shader, mem_ctx, no_spills,
shader_time_index),
shader_prog(prog)
shader_prog(sh_prog),
prog(prog)
{
}
@ -69,6 +71,7 @@ private:
int get_vertex_output_offset_for_varying(int vertex, int varying);
const struct gl_shader_program *shader_prog;
const struct gl_program *prog;
src_reg vertex_output;
src_reg vertex_output_offset;