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authorIlia Mirkin <[email protected]>2014-07-02 12:16:01 -0400
committerIlia Mirkin <[email protected]>2014-07-03 19:39:25 -0400
commit313acb3ffa2e73635807c4028b7aedced5bad379 (patch)
tree84e57a7b097c1e2e9e56e1a994fcdfe35d3c46b2
parent556a415033223108eb5706364604b3400f497c58 (diff)
r600g: allow vs to write to gl_ViewportIndex
Signed-off-by: Ilia Mirkin <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Tested-by: Tobias Droste <[email protected]>
-rw-r--r--src/gallium/drivers/r600/r600_shader.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 3767e5fbc18..448ca8044de 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -2042,6 +2042,23 @@ 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_VIEWPORT_INDEX:
+ /* spi_sid is 0 for outputs that are
+ * not consumed by PS */
+ if (shader->output[i].spi_sid) {
+ output[j].array_base = next_param_base++;
+ output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_PARAM;
+ j++;
+ memcpy(&output[j], &output[j-1], sizeof(struct r600_bytecode_output));
+ }
+ output[j].array_base = 61;
+ output[j].swizzle_x = 7;
+ output[j].swizzle_y = 7;
+ output[j].swizzle_z = 7;
+ output[j].swizzle_w = 0;
+ output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS;
+ pos_emitted = true;
+ break;
case TGSI_SEMANTIC_CLIPVERTEX:
j--;
break;