gallium/dri2: Report correct YUYV and UYVY plane count

Return the actual number of planes in these formats (one) instead of the
number of planes used for lowering (two).

Fixes: d5c857837aa ("gallium/dri2: Fix creation of multi-planar modifier images")
Acked-by: Anuj Phogat <anuj.phogat@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6449>

diff --git a/src/gallium/frontends/dri/dri2.c b/src/gallium/frontends/dri/dri2.c
index b6d7d039e208aa8eb1db87aed5958f54da412121..43c57c1288a4964cde3b9d81670bf21c596121b3 100644 (file)
--- a/src/gallium/frontends/dri/dri2.c
+++ b/src/gallium/frontends/dri/dri2.c
@@ -877,7 +877,7 @@ dri2_get_modifier_num_planes(uint64_t modifier, int fourcc)
    case I915_FORMAT_MOD_X_TILED:
    case I915_FORMAT_MOD_Y_TILED:
    case DRM_FORMAT_MOD_INVALID:
-      return map->nplanes;
+      return util_format_get_num_planes(map->pipe_format);
    default:
       return 0;
    }
@@ -894,24 +894,14 @@ dri2_create_image_from_fd(__DRIscreen *_screen,
    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
    __DRIimage *img = NULL;
    unsigned err = __DRI_IMAGE_ERROR_SUCCESS;
-   int i, expected_num_fds;
-   int num_handles = dri2_get_modifier_num_planes(modifier, fourcc);
+   int i;
+   const int expected_num_fds = dri2_get_modifier_num_planes(modifier, fourcc);
 
-   if (!map || num_handles == 0) {
+   if (!map || expected_num_fds == 0) {
       err = __DRI_IMAGE_ERROR_BAD_MATCH;
       goto exit;
    }
 
-   switch (fourcc) {
-   case DRM_FORMAT_YUYV:
-   case DRM_FORMAT_UYVY:
-      expected_num_fds = 1;
-      break;
-   default:
-      expected_num_fds = num_handles;
-      break;
-   }
-
    if (num_fds != expected_num_fds) {
       err = __DRI_IMAGE_ERROR_BAD_MATCH;
       goto exit;