| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can |
| * be found in the LICENSE file. |
| * |
| */ |
| |
| #pragma once |
| |
| // |
| // |
| // |
| |
| #include "types.h" |
| |
| // |
| // Add defensive high guard-bit flags to the opaque path and raster |
| // handles. This is tested once and stripped down to a handle. |
| // |
| // union skc_typed_handle |
| // { |
| // skc_uint u32; |
| // |
| // struct { |
| // skc_uint handle : 30; |
| // skc_uint is_path : 1; |
| // skc_uint is_raster : 1; |
| // }; |
| // struct { |
| // skc_uint na : 30; |
| // skc_uint type : 2; |
| // }; |
| // } |
| // |
| |
| typedef enum skc_typed_handle_type_e |
| { |
| SKC_TYPED_HANDLE_TYPE_IS_PATH = 0x40000000, |
| SKC_TYPED_HANDLE_TYPE_IS_RASTER = 0x80000000 |
| } skc_typed_handle_type_e; |
| |
| typedef skc_uint skc_typed_handle_t; |
| typedef skc_uint skc_handle_t; |
| |
| // |
| // |
| // |
| |
| #define SKC_TYPED_HANDLE_MASK_TYPE (SKC_TYPED_HANDLE_TYPE_IS_PATH | SKC_TYPED_HANDLE_TYPE_IS_RASTER) |
| |
| #define SKC_TYPED_HANDLE_TO_HANDLE(h) ((h) & ~SKC_TYPED_HANDLE_MASK_TYPE) |
| |
| #define SKC_TYPED_HANDLE_IS_TYPE(h,t) ((h) & (t)) |
| #define SKC_TYPED_HANDLE_IS_PATH(h) ((h) & SKC_TYPED_HANDLE_TYPE_IS_PATH) |
| #define SKC_TYPED_HANDLE_IS_RASTER(h) ((h) & SKC_TYPED_HANDLE_TYPE_IS_RASTER) |
| |
| // |
| // |
| // |
