xref: /aosp_15_r20/external/skia/include/private/base/SkLoadUserConfig.h (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2  * Copyright 2022 Google LLC
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef SK_USER_CONFIG_WAS_LOADED
9 
10 // Include this to set reasonable defaults (e.g. for SK_CPU_LENDIAN)
11 #include "include/private/base/SkFeatures.h"
12 
13 // Allows embedders that want to disable macros that take arguments to just
14 // define that symbol to be one of these
15 #define SK_NOTHING_ARG1(arg1)
16 #define SK_NOTHING_ARG2(arg1, arg2)
17 #define SK_NOTHING_ARG3(arg1, arg2, arg3)
18 
19 // IWYU pragma: begin_exports
20 
21 // Note: SK_USER_CONFIG_HEADER will not work with Bazel builds and some C++ compilers.
22 #if defined(SK_USER_CONFIG_HEADER)
23     #include SK_USER_CONFIG_HEADER
24 #elif defined(SK_USE_BAZEL_CONFIG_HEADER)
25     // The Bazel config file is presumed to be in the root directory of its Bazel Workspace.
26     // This is achieved in Skia by having a nested WORKSPACE in include/config and a cc_library
27     // defined in that folder. As a result, we do not try to include SkUserConfig.h from the
28     // top of Skia because Bazel sandboxing will move it to a different location.
29     #include "SkUserConfig.h"  // NO_G3_REWRITE
30 #else
31     #include "include/config/SkUserConfig.h"
32 #endif
33 // IWYU pragma: end_exports
34 
35 // Checks to make sure the SkUserConfig options do not conflict.
36 #if !defined(SK_DEBUG) && !defined(SK_RELEASE)
37     #ifdef NDEBUG
38         #define SK_RELEASE
39     #else
40         #define SK_DEBUG
41     #endif
42 #endif
43 
44 #if defined(SK_DEBUG) && defined(SK_RELEASE)
45 #  error "cannot define both SK_DEBUG and SK_RELEASE"
46 #elif !defined(SK_DEBUG) && !defined(SK_RELEASE)
47 #  error "must define either SK_DEBUG or SK_RELEASE"
48 #endif
49 
50 #if defined(SK_CPU_LENDIAN) && defined(SK_CPU_BENDIAN)
51 #  error "cannot define both SK_CPU_LENDIAN and SK_CPU_BENDIAN"
52 #elif !defined(SK_CPU_LENDIAN) && !defined(SK_CPU_BENDIAN)
53 #  error "must define either SK_CPU_LENDIAN or SK_CPU_BENDIAN"
54 #endif
55 
56 #if defined(SK_CPU_BENDIAN) && !defined(I_ACKNOWLEDGE_SKIA_DOES_NOT_SUPPORT_BIG_ENDIAN)
57     #error "The Skia team is not endian-savvy enough to support big-endian CPUs."
58     #error "If you still want to use Skia,"
59     #error "please define I_ACKNOWLEDGE_SKIA_DOES_NOT_SUPPORT_BIG_ENDIAN."
60 #endif
61 
62 #define SK_USER_CONFIG_WAS_LOADED
63 #endif // SK_USER_CONFIG_WAS_LOADED
64