xref: /aosp_15_r20/external/skia/tools/sk_app/android/main_android.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2 * Copyright 2016 Google Inc.
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 #include <jni.h>
9 #include <errno.h>
10 
11 #include <android_native_app_glue.h>
12 
13 #include "tools/sk_app/Application.h"
14 #include "tools/timer/Timer.h"
15 
16 using sk_app::Application;
17 
18 /**
19  * This is the main entry point of a native application that is using
20  * android_native_app_glue.  It runs in its own thread, with its own
21  * event loop for receiving input events and doing other things.
22  */
android_main(struct android_app * state)23 void android_main(struct android_app* state) {
24     // Make sure glue isn't stripped.
25     app_dummy();
26 
27     static const char* gCmdLine[] = {
28         "viewer",
29         "--skps",
30         "/data/local/tmp/skps",
31         // TODO: figure out how to use am start with extra params to pass in additional arguments at
32         // runtime
33         // "--atrace",
34     };
35 
36     std::unique_ptr<Application> vkApp(Application::Create(std::size(gCmdLine),
37                                                            const_cast<char**>(gCmdLine),
38                                                            state));
39 
40     // loop waiting for stuff to do.
41     while (!state->destroyRequested) {
42         struct android_poll_source* source = nullptr;
43         auto result = ALooper_pollOnce(-1, nullptr, nullptr, (void**)&source);
44 
45         if (result == ALOOPER_POLL_ERROR) {
46             SkDEBUGFAIL("ALooper_pollOnce returned an error");
47         }
48         if (source != nullptr) {
49             source->process(state, source);
50         }
51         vkApp->onIdle();
52     }
53 }
54 //END_INCLUDE(all)
55