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r600g: implement edge flags

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Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák
2014-03-03 02:20:45 +01:00
parent ac35ded473
commit 1337da5115
3 changed files with 53 additions and 4 deletions
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1
src/gallium/drivers/r600/evergreen_state.c
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@@ -3283,6 +3283,7 @@ void evergreen_update_vs_state(struct pipe_context *ctx, struct r600_pipe_shader
S_02881C_VS_OUT_CCDIST1_VEC_ENA((rshader->clip_dist_write & 0xF0) != 0) |
S_02881C_VS_OUT_MISC_VEC_ENA(rshader->vs_out_misc_write) |
S_02881C_USE_VTX_POINT_SIZE(rshader->vs_out_point_size) |
S_02881C_USE_VTX_EDGE_FLAG(rshader->vs_out_edgeflag) |
S_02881C_USE_VTX_VIEWPORT_INDX(rshader->vs_out_viewport) |
S_02881C_USE_VTX_RENDER_TARGET_INDX(rshader->vs_out_layer);
}

55
src/gallium/drivers/r600/r600_shader.c
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@@ -286,6 +286,7 @@ struct r600_shader_ctx {
int colors_used;
boolean clip_vertex_write;
unsigned cv_output;
unsigned edgeflag_output;
int fragcoord_input;
int native_integers;
int next_ring_offset;
@@ -490,10 +491,11 @@ static int r600_spi_sid(struct r600_shader_io * io)
* semantic indices, so we'll use 0 for them.
*/
if (name == TGSI_SEMANTIC_POSITION ||
name == TGSI_SEMANTIC_PSIZE ||
name == TGSI_SEMANTIC_LAYER ||
name == TGSI_SEMANTIC_VIEWPORT_INDEX ||
name == TGSI_SEMANTIC_FACE)
name == TGSI_SEMANTIC_PSIZE ||
name == TGSI_SEMANTIC_EDGEFLAG ||
name == TGSI_SEMANTIC_LAYER ||
name == TGSI_SEMANTIC_VIEWPORT_INDEX ||
name == TGSI_SEMANTIC_FACE)
index = 0;
else {
if (name == TGSI_SEMANTIC_GENERIC) {
@@ -624,6 +626,11 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
ctx->shader->vs_out_misc_write = 1;
ctx->shader->vs_out_point_size = 1;
break;
case TGSI_SEMANTIC_EDGEFLAG:
ctx->shader->vs_out_misc_write = 1;
ctx->shader->vs_out_edgeflag = 1;
ctx->edgeflag_output = i;
break;
case TGSI_SEMANTIC_VIEWPORT_INDEX:
ctx->shader->vs_out_misc_write = 1;
ctx->shader->vs_out_viewport = 1;
@@ -1162,6 +1169,35 @@ out_err:
return r;
}
static void convert_edgeflag_to_int(struct r600_shader_ctx *ctx)
{
struct r600_bytecode_alu alu;
unsigned reg;
if (!ctx->shader->vs_out_edgeflag)
return;
reg = ctx->shader->output[ctx->edgeflag_output].gpr;
/* clamp(x, 0, 1) */
memset(&alu, 0, sizeof(alu));
alu.op = ALU_OP1_MOV;
alu.src[0].sel = reg;
alu.dst.sel = reg;
alu.dst.write = 1;
alu.dst.clamp = 1;
alu.last = 1;
r600_bytecode_add_alu(ctx->bc, &alu);
memset(&alu, 0, sizeof(alu));
alu.op = ALU_OP1_FLT_TO_INT;
alu.src[0].sel = reg;
alu.dst.sel = reg;
alu.dst.write = 1;
alu.last = 1;
r600_bytecode_add_alu(ctx->bc, &alu);
}
static int generate_gs_copy_shader(struct r600_context *rctx,
struct r600_pipe_shader *gs,
struct pipe_stream_output_info *so)
@@ -1918,6 +1954,8 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
so.num_outputs && !use_llvm)
emit_streamout(&ctx, &so);
convert_edgeflag_to_int(&ctx);
if (ring_outputs) {
if (key.vs_as_es)
emit_gs_ring_writes(&ctx, FALSE);
@@ -1953,6 +1991,15 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS;
pos_emitted = true;
break;
case TGSI_SEMANTIC_EDGEFLAG:
output[j].array_base = 61;
output[j].swizzle_x = 7;
output[j].swizzle_y = 0;
output[j].swizzle_z = 7;
output[j].swizzle_w = 7;
output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS;
pos_emitted = true;
break;
case TGSI_SEMANTIC_LAYER:
output[j].array_base = 61;
output[j].swizzle_x = 7;

1
src/gallium/drivers/r600/r600_shader.h
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@@ -64,6 +64,7 @@ struct r600_shader {
boolean vs_out_point_size;
boolean vs_out_layer;
boolean vs_out_viewport;
boolean vs_out_edgeflag;
boolean has_txq_cube_array_z_comp;
boolean uses_tex_buffers;
boolean gs_prim_id_input;