diff options
| author | Dave Airlie <[email protected]> | 2013-12-23 01:30:03 +0000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2014-02-05 10:49:39 +1000 |
| commit | f4652babbde7bd9a7660ece7fe38ed16e294595e (patch) | |
| tree | 7332896e634c8a1b934a92404fa6ee0b641c7717 /src/gallium/drivers/r600/r600_shader.c | |
| parent | b0e842bd9f90d6b77eae085a168d5a6c49962bf3 (diff) | |
r600g: add primitive input support for gs
only enable prim id if gs uses it
Signed-off-by: Dave Airlie <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r600/r600_shader.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index e24b64d1781..fd11f61792a 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -590,6 +590,8 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx) /* FIXME probably skip inputs if they aren't passed in the ring */ ctx->shader->input[i].ring_offset = ctx->next_ring_offset; ctx->next_ring_offset += 16; + if (ctx->shader->input[i].name == TGSI_SEMANTIC_PRIMID) + ctx->shader->gs_prim_id_input = true; } for (j = 1; j < count; ++j) { ctx->shader->input[i + j] = ctx->shader->input[i]; @@ -872,6 +874,13 @@ static int tgsi_split_gs_inputs(struct r600_shader_ctx *ctx) for (i = 0; i < inst->Instruction.NumSrcRegs; i++) { struct tgsi_full_src_register *src = &inst->Src[i]; + if (src->Register.File == TGSI_FILE_INPUT) { + if (ctx->shader->input[src->Register.Index].name == TGSI_SEMANTIC_PRIMID) { + /* primitive id is in R0.z */ + ctx->src[i].sel = 0; + ctx->src[i].swizzle[0] = 2; + } + } if (src->Register.File == TGSI_FILE_INPUT && src->Register.Dimension) { int treg = r600_get_temp(ctx); int index = src->Register.Index; |