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authorVadim Girlin <[email protected]>2013-08-25 18:52:17 +0400
committerVadim Girlin <[email protected]>2013-08-30 15:51:11 +0400
commit29ff2e907d6c54f95be6dfa72201fd25bbd50fcd (patch)
tree80d5e3ed208928b65cd80edb198a4e69287bd710 /src/gallium/drivers
parent74be77a99e1196d07ebd941aee24313f7aa123c9 (diff)
r600g: fix color exports when we have no CBs
We need to export at least one color if the shader writes it, even when nr_cbufs==0. Signed-off-by: Vadim Girlin <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 300b5c466e4..f7eab761bb0 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -918,6 +918,7 @@ static int r600_shader_from_tgsi(struct r600_screen *rscreen,
unsigned opcode;
int i, j, k, r = 0;
int next_pos_base = 60, next_param_base = 0;
+ int max_color_exports = MAX2(key.nr_cbufs, 1);
/* Declarations used by llvm code */
bool use_llvm = false;
bool indirect_gprs;
@@ -1130,7 +1131,7 @@ static int r600_shader_from_tgsi(struct r600_screen *rscreen,
radeon_llvm_ctx.face_gpr = ctx.face_gpr;
radeon_llvm_ctx.r600_inputs = ctx.shader->input;
radeon_llvm_ctx.r600_outputs = ctx.shader->output;
- radeon_llvm_ctx.color_buffer_count = MAX2(key.nr_cbufs , 1);
+ radeon_llvm_ctx.color_buffer_count = max_color_exports;
radeon_llvm_ctx.chip_class = ctx.bc->chip_class;
radeon_llvm_ctx.fs_color_all = shader->fs_write_all && (rscreen->chip_class >= EVERGREEN);
radeon_llvm_ctx.stream_outputs = &so;
@@ -1440,7 +1441,7 @@ static int r600_shader_from_tgsi(struct r600_screen *rscreen,
case TGSI_PROCESSOR_FRAGMENT:
if (shader->output[i].name == TGSI_SEMANTIC_COLOR) {
/* never export more colors than the number of CBs */
- if (shader->output[i].sid >= key.nr_cbufs) {
+ if (shader->output[i].sid >= max_color_exports) {
/* skip export */
j--;
continue;
@@ -1450,7 +1451,7 @@ static int r600_shader_from_tgsi(struct r600_screen *rscreen,
output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_PIXEL;
shader->nr_ps_color_exports++;
if (shader->fs_write_all && (rscreen->chip_class >= EVERGREEN)) {
- for (k = 1; k < key.nr_cbufs; k++) {
+ for (k = 1; k < max_color_exports; k++) {
j++;
memset(&output[j], 0, sizeof(struct r600_bytecode_output));
output[j].gpr = shader->output[i].gpr;