+ struct gl_texture_object *tex)
+{
+ if (*ptr != tex)
+ _mesa_reference_texobj_(ptr, tex);
+}
+
+/**
+ * Lock a texture for updating. See also _mesa_lock_context_textures().
+ */
+static inline void
+_mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
+{
+ mtx_lock(&ctx->Shared->TexMutex);
+ ctx->Shared->TextureStateStamp++;
+ (void) texObj;
+}
+
+static inline void
+_mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
+{
+ (void) texObj;
+ mtx_unlock(&ctx->Shared->TexMutex);
+}
+
+
+/** Is the texture "complete" with respect to the given sampler state? */
+static inline GLboolean
+_mesa_is_texture_complete(const struct gl_texture_object *texObj,
+ const struct gl_sampler_object *sampler)
+{
+ if (texObj->_IsIntegerFormat &&
+ (sampler->MagFilter != GL_NEAREST ||
+ (sampler->MinFilter != GL_NEAREST &&
+ sampler->MinFilter != GL_NEAREST_MIPMAP_NEAREST))) {
+ /* If the format is integer, only nearest filtering is allowed */
+ return GL_FALSE;
+ }
+
+ /* From the ARB_stencil_texturing specification:
+ * "Add a new bullet point for the conditions that cause the texture
+ * to not be complete:
+ *
+ * * The internal format of the texture is DEPTH_STENCIL, the
+ * DEPTH_STENCIL_TEXTURE_MODE for the texture is STENCIL_INDEX and either
+ * the magnification filter or the minification filter is not NEAREST."
+ */
+ if (texObj->StencilSampling &&
+ texObj->Image[0][texObj->BaseLevel]->_BaseFormat == GL_DEPTH_STENCIL &&
+ (sampler->MagFilter != GL_NEAREST || sampler->MinFilter != GL_NEAREST)) {
+ return GL_FALSE;
+ }
+
+ if (_mesa_is_mipmap_filter(sampler))
+ return texObj->_MipmapComplete;
+ else
+ return texObj->_BaseComplete;
+}
+