3daa1aed7a
Support linking skia statically on Android. Skia symbols should be exported by the app library, to the extent that skia_launcher needs them. Syncs libskia_android.so to the device only if it exists. R=djsollen@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/61893008 git-svn-id: http://skia.googlecode.com/svn/trunk@12399 2bbb7eff-a529-9590-31e7-b0007b416f81
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <dlfcn.h>
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#include <stdio.h>
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void usage() {
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printf("[USAGE] skia_launcher program_name [options]\n");
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printf(" program_name: the skia program you want to launch (e.g. tests, bench)\n");
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printf(" options: options specific to the program you are launching\n");
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}
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bool file_exists(const char* fileName) {
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FILE* file = fopen(fileName, "r");
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if (file) {
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fclose(file);
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return true;
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}
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return false;
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}
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int launch_app(int (*app_main)(int, const char**), int argc,
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const char** argv) {
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return (*app_main)(argc, argv);
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}
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void* load_library(const char* appLocation, const char* libraryName)
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{
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// attempt to lookup the location of the shared libraries
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char libraryLocation[100];
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sprintf(libraryLocation, "%s/lib%s.so", appLocation, libraryName);
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if (!file_exists(libraryLocation)) {
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printf("ERROR: Unable to find the '%s' library in the Skia App.\n", libraryName);
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printf("ERROR: Did you provide the correct program_name?\n");
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usage();
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return NULL;
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}
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// load the appropriate library
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void* appLibrary = dlopen(libraryLocation, RTLD_LOCAL | RTLD_LAZY);
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if (!appLibrary) {
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printf("ERROR: Unable to open the shared library.\n");
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printf("ERROR: %s", dlerror());
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return NULL;
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}
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return appLibrary;
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}
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int main(int argc, const char** argv) {
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// check that the program name was specified
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if (argc < 2) {
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printf("ERROR: No program_name was specified\n");
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usage();
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return -1;
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}
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// attempt to lookup the location of the skia app
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const char* appLocation = "/data/local/tmp";
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if (!file_exists(appLocation)) {
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printf("ERROR: Unable to find /data/local/tmp on the device.\n");
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return -1;
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}
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void* skiaLibrary;
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#if defined(SKIA_DLL)
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// load the local skia shared library
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skiaLibrary = load_library(appLocation, "skia_android");
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if (NULL == skiaLibrary)
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{
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return -1;
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}
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#endif
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// load the appropriate library
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void* appLibrary = load_library(appLocation, argv[1]);
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if (NULL == appLibrary) {
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return -1;
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}
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#if !defined(SKIA_DLL)
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skiaLibrary = appLibrary;
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#endif
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// find the address of the main function
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int (*app_main)(int, const char**);
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*(void **) (&app_main) = dlsym(appLibrary, "main");
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if (!app_main) {
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printf("ERROR: Unable to load the main function of the selected program.\n");
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printf("ERROR: %s\n", dlerror());
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return -1;
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}
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// find the address of the SkPrintToConsole function
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void (*app_SkDebugToStdOut)(bool);
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*(void **) (&app_SkDebugToStdOut) = dlsym(skiaLibrary, "AndroidSkDebugToStdOut");
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if (app_SkDebugToStdOut) {
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(*app_SkDebugToStdOut)(true);
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} else {
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printf("WARNING: Unable to redirect output to the console.\n");
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printf("WARNING: %s\n", dlerror());
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}
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// pass all additional arguments to the main function
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return launch_app(app_main, argc - 1, ++argv);
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}
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