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radv: use SPI_SHADER_ZERO for non-written color attachments 

When colorWriteMask is 0 we can assume that this color attachment
is unused.

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/5434>
This commit is contained in:
Samuel Pitoiset 2020-06-11 21:51:42 +02:00 committed by Marge Bot
parent 18b42eebd5
commit 4e0dcbb880
1 changed files with 2 additions and 1 deletions
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3
src/amd/vulkan/radv_pipeline.c
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@ -517,7 +517,8 @@ radv_pipeline_compute_spi_color_formats(struct radv_pipeline *pipeline,
for (unsigned i = 0; i < (blend->single_cb_enable ? 1 : subpass->color_count); ++i) {
unsigned cf;
if (subpass->color_attachments[i].attachment == VK_ATTACHMENT_UNUSED) {
if (subpass->color_attachments[i].attachment == VK_ATTACHMENT_UNUSED ||
!(blend->cb_target_mask & (0xfu << (i * 4)))) {
cf = V_028714_SPI_SHADER_ZERO;
} else {
struct radv_render_pass_attachment *attachment = pass->attachments + subpass->color_attachments[i].attachment;