mesa: error-check GL_TEXTURE_TILING_EXT params

This just seems like the right thing to do. We shouldn't allow
unexpected params just like that.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32349>

src/mesa/main/texparam.c

@@ -248,6 +248,19 @@ _mesa_target_allows_setting_sampler_parameters(GLenum target)
    }
 }
 
+static bool
+is_valid_texture_tiling(struct gl_context *ctx, GLenum tiling)
+{
+   switch (tiling) {
+   case GL_OPTIMAL_TILING_EXT:
+   case GL_LINEAR_TILING_EXT:
+      return true;
+   case GL_CONST_BW_TILING_MESA:
+      return _mesa_has_MESA_texture_const_bandwidth(ctx);
+   default:
+      return false;
+   }
+}
 
 /**
  * Set an integer-valued texture parameter
@@ -656,8 +669,10 @@ set_tex_parameteri(struct gl_context *ctx,
 
    case GL_TEXTURE_TILING_EXT:
       if (_mesa_has_EXT_memory_object(ctx) && !texObj->Immutable) {
-            texObj->TextureTiling = params[0];
+         if (!is_valid_texture_tiling(ctx, params[0]))
+            goto invalid_param;
 
+         texObj->TextureTiling = params[0];
          return GL_TRUE;
       }
       goto invalid_pname;
@@ -876,6 +891,12 @@ set_tex_parameterf(struct gl_context *ctx,
 
    case GL_TEXTURE_TILING_EXT:
       if (_mesa_has_EXT_memory_object(ctx)) {
+         if (!is_valid_texture_tiling(ctx, (GLenum)params[0])) {
+            _mesa_error(ctx, GL_INVALID_VALUE, "glTex%sParameter(param)",
+                        suffix);
+            return GL_FALSE;
+         }
+
          texObj->TextureTiling = params[0];
          return GL_TRUE;
       }