[Mesa-dev] [PATCH] Correct test for depth parameter for checking if dimension is legal

[Kevin Rogovin]

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. 

---
 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 9c3f1e8..8e2f057 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1481,7 +1481,7 @@ _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))
@@ -1498,7 +1498,7 @@ _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;
-- 
1.8.1.2