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-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;