radv/meta: fix image clears for r4g4 format.

This just uses an 8-bit clear and packs the values.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/amd/vulkan/radv_meta_clear.c b/src/amd/vulkan/radv_meta_clear.c
index c07775f6db896a36170b29ebfff966d47730cd06..6583d64153fe23e9562e7ec3c5315649e11a4cea 100644 (file)
--- a/src/amd/vulkan/radv_meta_clear.c
+++ b/src/amd/vulkan/radv_meta_clear.c
@@ -1175,6 +1175,14 @@ radv_cmd_clear_image(struct radv_cmd_buffer *cmd_buffer,
                internal_clear_value.color.uint32[0] = value;
        }
 
+       if (format == VK_FORMAT_R4G4_UNORM_PACK8) {
+               uint8_t r, g;
+               format = VK_FORMAT_R8_UINT;
+               r = float_to_ubyte(clear_value->color.float32[0]) >> 4;
+               g = float_to_ubyte(clear_value->color.float32[1]) >> 4;
+               internal_clear_value.color.uint32[0] = (r << 4) | (g & 0xf);
+       }
+
        for (uint32_t r = 0; r < range_count; r++) {
                const VkImageSubresourceRange *range = &ranges[r];
                for (uint32_t l = 0; l < radv_get_levelCount(image, range); ++l) {