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path: root/src/gallium/drivers/r600/r600_shader.c
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Diffstat (limited to 'src/gallium/drivers/r600/r600_shader.c')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 9fcb1d75f09..65923fb9648 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -420,6 +420,7 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
{
struct tgsi_full_declaration *d = &ctx->parse.FullToken.FullDeclaration;
unsigned i;
+ int r;
switch (d->Declaration.File) {
case TGSI_FILE_INPUT:
@@ -451,6 +452,26 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
case TGSI_FILE_SAMPLER:
case TGSI_FILE_ADDRESS:
break;
+
+ case TGSI_FILE_SYSTEM_VALUE:
+ if (d->Semantic.Name == TGSI_SEMANTIC_INSTANCEID) {
+ struct r600_bc_alu alu;
+ memset(&alu, 0, sizeof(struct r600_bc_alu));
+
+ alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_INT_TO_FLT);
+ alu.src[0].sel = 0;
+ alu.src[0].chan = 3;
+
+ alu.dst.sel = 0;
+ alu.dst.chan = 3;
+ alu.dst.write = 1;
+ alu.last = 1;
+
+ if ((r = r600_bc_add_alu(ctx->bc, &alu)))
+ return r;
+ break;
+ }
+
default:
R600_ERR("unsupported file %d declaration\n", d->Declaration.File);
return -EINVAL;
@@ -521,6 +542,7 @@ static void tgsi_src(struct r600_shader_ctx *ctx,
r600_src->swizzle[3] = tgsi_src->Register.SwizzleW;
r600_src->neg = tgsi_src->Register.Negate;
r600_src->abs = tgsi_src->Register.Absolute;
+
if (tgsi_src->Register.File == TGSI_FILE_IMMEDIATE) {
int index;
if ((tgsi_src->Register.SwizzleX == tgsi_src->Register.SwizzleY) &&
@@ -535,7 +557,14 @@ static void tgsi_src(struct r600_shader_ctx *ctx,
index = tgsi_src->Register.Index;
r600_src->sel = V_SQ_ALU_SRC_LITERAL;
memcpy(r600_src->value, ctx->literals + index * 4, sizeof(r600_src->value));
- } else {
+ } else if (tgsi_src->Register.File == TGSI_FILE_SYSTEM_VALUE) {
+ /* assume we wan't TGSI_SEMANTIC_INSTANCEID here */
+ r600_src->swizzle[0] = 3;
+ r600_src->swizzle[1] = 3;
+ r600_src->swizzle[2] = 3;
+ r600_src->swizzle[3] = 3;
+ r600_src->sel = 0;
+ } else {
if (tgsi_src->Register.Indirect)
r600_src->rel = V_SQ_REL_RELATIVE;
r600_src->sel = tgsi_src->Register.Index;