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radv/llvm: fix dual source blending on GFX11

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Untested but this should be similar to RadeonSI.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19367>
This commit is contained in:
Samuel Pitoiset
2022-10-28 02:47:50 +00:00
committed by Marge Bot
parent d172fc1fca
commit e2fcbd4a37
1 changed files with 12 additions and 2 deletions
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14
src/amd/vulkan/radv_nir_to_llvm.c
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@@ -1041,8 +1041,14 @@ static bool
si_export_mrt_color(struct radv_shader_context *ctx, LLVMValueRef *color, unsigned target,
unsigned index, struct ac_export_args *args)
{
/* Export */
si_llvm_init_export_args(ctx, color, 0xf, V_008DFC_SQ_EXP_MRT + target, index, args);
unsigned mrt_target = V_008DFC_SQ_EXP_MRT + target;
if (ctx->options->gfx_level >= GFX11 && ctx->options->key.ps.mrt0_is_dual_src &&
(target == 0 || target == 1)) {
mrt_target += 21;
}
si_llvm_init_export_args(ctx, color, 0xf, mrt_target, index, args);
if (!args->enabled_channels)
return false; /* unnecessary NULL export */
@@ -1105,6 +1111,10 @@ handle_fs_outputs_post(struct radv_shader_context *ctx)
color_args[last].valid_mask = 1; /* whether the EXEC mask is valid */
color_args[last].done = 1; /* DONE bit */
if (ctx->options->gfx_level >= GFX11 && ctx->options->key.ps.mrt0_is_dual_src) {
ac_build_dual_src_blend_swizzle(&ctx->ac, &color_args[0], &color_args[1]);
}
}
/* Export PS outputs. */