v3dv: handle VK_FORMAT_B8G8R8A8_UNORM vertex attributes
This is the only mandatory vertex attribute format that requires a
swizzle.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
diff --git a/src/broadcom/vulkan/v3dv_pipeline.c b/src/broadcom/vulkan/v3dv_pipeline.c
index df1f244..491f21e 100644
--- a/src/broadcom/vulkan/v3dv_pipeline.c
+++ b/src/broadcom/vulkan/v3dv_pipeline.c
@@ -1177,6 +1177,16 @@
memcpy(key->used_outputs, fs_variant->prog_data.fs->input_slots,
sizeof(key->used_outputs));
}
+
+ const VkPipelineVertexInputStateCreateInfo *vi_info =
+ pCreateInfo->pVertexInputState;
+ for (uint32_t i = 0; i < vi_info->vertexAttributeDescriptionCount; i++) {
+ const VkVertexInputAttributeDescription *desc =
+ &vi_info->pVertexAttributeDescriptions[i];
+ assert(desc->location < MAX_VERTEX_ATTRIBS);
+ if (desc->format == VK_FORMAT_B8G8R8A8_UNORM)
+ key->va_swap_rb_mask |= 1 << desc->location;
+ }
}
/* FIXME: following hash/compare methods are C&P from v3d. Common place? */
