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![Philipp Wiesemann](/assets/img/avatar_default.png)
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
160 lines
4.3 KiB
C
160 lines
4.3 KiB
C
/*
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#ifdef __EMSCRIPTEN__
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#include <emscripten/emscripten.h>
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#endif
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#include "SDL_test_common.h"
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static SDLTest_CommonState *state;
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int done;
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static const char *cursorNames[] = {
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"arrow",
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"ibeam",
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"wait",
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"crosshair",
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"waitarrow",
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"sizeNWSE",
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"sizeNESW",
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"sizeWE",
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"sizeNS",
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"sizeALL",
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"NO",
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"hand",
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};
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int system_cursor = -1;
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SDL_Cursor *cursor = NULL;
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit(int rc)
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{
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SDLTest_CommonQuit(state);
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exit(rc);
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}
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void
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loop()
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{
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SDL_Event event;
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/* Check for events */
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while (SDL_PollEvent(&event)) {
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SDLTest_CommonEvent(state, &event, &done);
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if (event.type == SDL_WINDOWEVENT) {
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if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
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SDL_Window *window = SDL_GetWindowFromID(event.window.windowID);
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if (window) {
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SDL_Log("Window %d resized to %dx%d\n",
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event.window.windowID,
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event.window.data1,
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event.window.data2);
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}
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}
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if (event.window.event == SDL_WINDOWEVENT_MOVED) {
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SDL_Window *window = SDL_GetWindowFromID(event.window.windowID);
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if (window) {
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SDL_Log("Window %d moved to %d,%d (display %s)\n",
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event.window.windowID,
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event.window.data1,
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event.window.data2,
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SDL_GetDisplayName(SDL_GetWindowDisplayIndex(window)));
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}
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}
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}
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if (event.type == SDL_KEYUP) {
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SDL_bool updateCursor = SDL_FALSE;
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if (event.key.keysym.sym == SDLK_LEFT) {
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--system_cursor;
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if (system_cursor < 0) {
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system_cursor = SDL_NUM_SYSTEM_CURSORS - 1;
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}
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updateCursor = SDL_TRUE;
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} else if (event.key.keysym.sym == SDLK_RIGHT) {
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++system_cursor;
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if (system_cursor >= SDL_NUM_SYSTEM_CURSORS) {
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system_cursor = 0;
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}
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updateCursor = SDL_TRUE;
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}
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if (updateCursor) {
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SDL_Log("Changing cursor to \"%s\"", cursorNames[system_cursor]);
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SDL_FreeCursor(cursor);
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cursor = SDL_CreateSystemCursor((SDL_SystemCursor)system_cursor);
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SDL_SetCursor(cursor);
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}
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}
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}
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#ifdef __EMSCRIPTEN__
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if (done) {
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emscripten_cancel_main_loop();
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}
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#endif
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}
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int
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main(int argc, char *argv[])
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{
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int i;
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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SDL_assert(SDL_arraysize(cursorNames) == SDL_NUM_SYSTEM_CURSORS);
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/* Initialize test framework */
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state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
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if (!state) {
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return 1;
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}
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state->skip_renderer = SDL_TRUE;
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for (i = 1; i < argc;) {
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int consumed;
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consumed = SDLTest_CommonArg(state, i);
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if (consumed == 0) {
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consumed = -1;
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}
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if (consumed < 0) {
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SDL_Log("Usage: %s %s\n", argv[0], SDLTest_CommonUsage(state));
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quit(1);
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}
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i += consumed;
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}
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if (!SDLTest_CommonInit(state)) {
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quit(2);
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}
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/* Main render loop */
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done = 0;
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#ifdef __EMSCRIPTEN__
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emscripten_set_main_loop(loop, 0, 1);
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#else
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while (!done) {
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loop();
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}
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#endif
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SDL_FreeCursor(cursor);
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quit(0);
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/* keep the compiler happy ... */
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return(0);
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}
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/* vi: set ts=4 sw=4 expandtab: */
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