[Mesa-dev] [PATCH] radeonsi: Handle TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS

[Michel Dänzer]

From: Michel Dänzer <michel.daen...@amd.com>

8 more little piglits.

Signed-off-by: Michel Dänzer <michel.daen...@amd.com>
---
 src/gallium/drivers/radeonsi/radeonsi_shader.c | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c 
b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index 36711be..5b832f9 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -612,6 +612,12 @@ static void si_llvm_emit_epilogue(struct 
lp_build_tgsi_context * bld_base)
                int i;
 
                tgsi_parse_token(parse);
+
+               if (parse->FullToken.Token.Type == TGSI_TOKEN_TYPE_PROPERTY &&
+                   parse->FullToken.FullProperty.Property.PropertyName ==
+                   TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS)
+                       shader->fs_write_all = TRUE;
+
                if (parse->FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
                        continue;
 
@@ -775,6 +781,29 @@ static void si_llvm_emit_epilogue(struct 
lp_build_tgsi_context * bld_base)
        last_args[1] = lp_build_const_int32(base->gallivm,
                                            si_shader_ctx->type == 
TGSI_PROCESSOR_FRAGMENT);
 
+       if (shader->fs_write_all && shader->nr_cbufs > 1) {
+               int i;
+
+               /* Specify that this is not yet the last export */
+               last_args[2] = lp_build_const_int32(base->gallivm, 0);
+
+               for (i = 1; i < shader->nr_cbufs; i++) {
+                       /* Specify the target we are exporting */
+                       last_args[3] = lp_build_const_int32(base->gallivm,
+                                                           V_008DFC_SQ_EXP_MRT 
+ i);
+
+                       lp_build_intrinsic(base->gallivm->builder,
+                                          "llvm.SI.export",
+                                          
LLVMVoidTypeInContext(base->gallivm->context),
+                                          last_args, 9);
+
+                       si_shader_ctx->shader->spi_shader_col_format |=
+                               si_shader_ctx->shader->spi_shader_col_format << 
4;
+               }
+
+               last_args[3] = lp_build_const_int32(base->gallivm, 
V_008DFC_SQ_EXP_MRT);
+       }
+
        /* Specify that this is the last export */
        last_args[2] = lp_build_const_int32(base->gallivm, 1);
 
-- 
1.8.1.3

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