Allow glTexImage1/2/3D to specify width/height/depth = 0.

This allows texture state to be resettable to default state.
Not allowed according to the spec, but allowed by all other OpenGL libs.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 16dd320e827..5a564fbc153 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -195,9 +195,9 @@ transfer_teximage(GLcontext *ctx, GLuint dimensions,
           texDestFormat == GL_COLOR_INDEX ||
           texDestFormat == GL_DEPTH_COMPONENT);
    ASSERT(texDestAddr);
-   ASSERT(srcWidth >= 1);
-   ASSERT(srcHeight >= 1);
-   ASSERT(srcDepth >= 1);
+   ASSERT(srcWidth >= 0);
+   ASSERT(srcHeight >= 0);
+   ASSERT(srcDepth >= 0);
    ASSERT(dstXoffset >= 0);
    ASSERT(dstYoffset >= 0);
    ASSERT(dstZoffset >= 0);