mesa: Allow setting GL_TEXTURE_MAX_LEVEL to 0 with GL_TEXTURE_RECTANGLE.

[mesa.git] / src / mesa / main / texparam.c

diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index bfb2e1b9f0cf5908c4c00edb0b512285dcd421ea..40790ff0ed93c6c8cab9f554d2c7d1120c216f38 100644 (file)
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -352,7 +352,8 @@ set_tex_parameteri(struct gl_context *ctx,
       if (texObj->MaxLevel == params[0])
          return GL_FALSE;
 
-      if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {
+      if (params[0] < 0 ||
+          (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] > 0)) {
          _mesa_error(ctx, GL_INVALID_VALUE,
                      "glTexParameter(param=%d)", params[0]);
          return GL_FALSE;