radv: fix RB+ for SRGB formats

This should be set for linear colorspace only.

Ported from RadeonSI.

Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20982>

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 9b2a034..6ef49a9 100644 (file)
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -1708,7 +1708,9 @@ radv_emit_rbplus_state(struct radv_cmd_buffer *cmd_buffer)
              spi_format == V_028714_SPI_SHADER_UINT16_ABGR ||
              spi_format == V_028714_SPI_SHADER_SINT16_ABGR) {
             sx_ps_downconvert |= V_028754_SX_RT_EXPORT_8_8_8_8 << (i * 4);
-            sx_blend_opt_epsilon |= V_028758_8BIT_FORMAT << (i * 4);
+
+            if (G_028C70_NUMBER_TYPE(cb->cb_color_info) != V_028C70_NUMBER_SRGB)
+               sx_blend_opt_epsilon |= V_028758_8BIT_FORMAT << (i * 4);
          }
          break;