Mesa (master): mesa: Allow depth = 0 parameter for TexImage3D.

[Matt Turner]

Module: Mesa
Branch: master
Commit: 1db9ed6495b7ec80980d51e390891841bf28023a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1db9ed6495b7ec80980d51e390891841bf28023a

Author: Kevin Rogovin <kevin.rogovin at intel.com>
Date:   Mon Jan 27 12:16:19 2014 +0200

mesa: Allow depth = 0 parameter for TexImage3D.

Fixes the tests for the depth parameter for TexImage3D calls when the
target type is GL_TEXTURE_2D_ARRAY or GL_TEXTURE_CUBE_MAP_ARRAY
so that a depth value of 0 is accepted. Previously, the check
incorrectly required the depth argument to be atleast 1.

Reviewed-by: Matt Turner <mattst88 at gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/main/teximage.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index a57c7da..59a9870 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1568,7 +1568,7 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
          return GL_FALSE;
       if (height < 2 * border || height > 2 * border + maxSize)
          return GL_FALSE;
-      if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
+      if (depth < 0 || depth > 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))
@@ -1585,7 +1585,7 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
          return GL_FALSE;
       if (height < 2 * border || height > 2 * border + maxSize)
          return GL_FALSE;
-      if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers || depth % 6)
+      if (depth < 0 || depth > ctx->Const.MaxArrayTextureLayers || depth % 6)
          return GL_FALSE;
       if (width != height)
          return GL_FALSE;