Mesa (master): mesa: fix height error check for 1D array textures

[Brian Paul]

Module: Mesa
Branch: master
Commit: 4e6244e80f7dd6dad526ff04f5103ed24d61d38a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4e6244e80f7dd6dad526ff04f5103ed24d61d38a

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Dec  2 09:41:20 2014 -0700

mesa: fix height error check for 1D array textures

height=0 is legal for 1D array textures (as depth=0 is legal for
2D arrays).  Fixes new piglit ext_texture_array-errors test.

Cc: "10.3 10.4" <mesa-stable at lists.freedesktop.org>
Reviewed-by: José Fonseca <jfonseca at vmware.com>

---

 src/mesa/main/teximage.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 4f4bb11..7766904 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1542,7 +1542,7 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
       maxSize >>= level;
       if (width < 2 * border || width > 2 * border + maxSize)
          return GL_FALSE;
-      if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
+      if (height < 0 || height > ctx->Const.MaxArrayTextureLayers)
          return GL_FALSE;
       if (!ctx->Extensions.ARB_texture_non_power_of_two) {
          if (width > 0 && !_mesa_is_pow_two(width - 2 * border))