st/mesa: fix blit-based partial TexSubImage for 1D arrays

This fixes piglit spec/EXT_texture_array/render-1darray.

Cc: [email protected]
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index aa6b05f0b60..c4b2107ba6e 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -719,6 +719,8 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
 
    /* From now on, we need the gallium representation of dimensions. */
    if (gl_target == GL_TEXTURE_1D_ARRAY) {
+      zoffset = yoffset;
+      yoffset = 0;
       depth = height;
       height = 1;
    }