[Mesa-dev] [PATCH 1/2] intel/blorp: Fix blits to R8G8B8_UNORM_SRGB

[Jason Ekstrand]

In this case, the surface faking will give us a R8_UNORM surface and we
need to do an sRGB conversion in the shader.

cc: mesa-stable at lists.freedesktop.org
---
 src/intel/blorp/blorp_blit.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/intel/blorp/blorp_blit.c b/src/intel/blorp/blorp_blit.c
index 0045275a550..66f58344ef6 100644
--- a/src/intel/blorp/blorp_blit.c
+++ b/src/intel/blorp/blorp_blit.c
@@ -1954,6 +1954,10 @@ try_blorp_blit(struct blorp_batch *batch,
       params->x0 *= 3;
       params->x1 *= 3;
 
+      /* If it happens to be sRGB, we need to force a conversion */
+      if (params->dst.view.format == ISL_FORMAT_R8G8B8_UNORM_SRGB)
+         wm_prog_key->dst_format = ISL_FORMAT_R9G9B9E5_SHAREDEXP;
+
       surf_fake_rgb_with_red(batch->blorp->isl_dev, &params->dst);
 
       wm_prog_key->dst_rgb = true;
-- 
2.17.1