st/mesa: convert sub image for cube map arrays to 2d arrays for upload

Since we can subimage upload a number of cube map array layers,
that aren't a complete cube map array, we should specify things
as a 2D array and blit from that.

Suggested by Ilia Mirkin as an alternate fix for texsubimage
cube map array issues.

seems to work just as well.

Cc: [email protected]
Reviewed-by: Marek Olšák <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 5c520b44f8d..353f80db1cb 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -738,6 +738,11 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
    if (gl_target == GL_TEXTURE_CUBE_MAP) {
       gl_target = GL_TEXTURE_2D;
    }
+   /* TexSubImage can specify subsets of cube map array faces
+    * so we need to upload via 2D array instead */
+   if (gl_target == GL_TEXTURE_CUBE_MAP_ARRAY) {
+      gl_target = GL_TEXTURE_2D_ARRAY;
+   }
 
    /* Initialize the source texture description. */
    memset(&src_templ, 0, sizeof(src_templ));