mirror of
https://github.com/Relintai/sdl2_frt.git
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0e45984fa0
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().
127 lines
3.2 KiB
C
127 lines
3.2 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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/* Simple program: Test relative mouse motion */
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include "SDL_test_common.h"
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#ifdef __EMSCRIPTEN__
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#include <emscripten/emscripten.h>
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#endif
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static SDLTest_CommonState *state;
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int i, done;
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SDL_Rect rect;
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SDL_Event event;
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static void
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DrawRects(SDL_Renderer * renderer, SDL_Rect * rect)
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{
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SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
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SDL_RenderFillRect(renderer, rect);
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}
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static void
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loop(){
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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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switch(event.type) {
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case SDL_MOUSEMOTION:
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{
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rect.x += event.motion.xrel;
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rect.y += event.motion.yrel;
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}
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break;
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}
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}
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for (i = 0; i < state->num_windows; ++i) {
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SDL_Rect viewport;
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SDL_Renderer *renderer = state->renderers[i];
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if (state->windows[i] == NULL)
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continue;
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SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0xFF);
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SDL_RenderClear(renderer);
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/* Wrap the cursor rectangle at the screen edges to keep it visible */
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SDL_RenderGetViewport(renderer, &viewport);
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if (rect.x < viewport.x) rect.x += viewport.w;
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if (rect.y < viewport.y) rect.y += viewport.h;
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if (rect.x > viewport.x + viewport.w) rect.x -= viewport.w;
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if (rect.y > viewport.y + viewport.h) rect.y -= viewport.h;
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DrawRects(renderer, &rect);
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SDL_RenderPresent(renderer);
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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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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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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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for (i = 1; i < argc; ++i) {
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SDLTest_CommonArg(state, i);
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}
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if (!SDLTest_CommonInit(state)) {
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return 2;
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}
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/* Create the windows and initialize the renderers */
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for (i = 0; i < state->num_windows; ++i) {
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SDL_Renderer *renderer = state->renderers[i];
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SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
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SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
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SDL_RenderClear(renderer);
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}
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srand((unsigned int)time(NULL));
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if(SDL_SetRelativeMouseMode(SDL_TRUE) < 0) {
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return 3;
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};
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rect.x = DEFAULT_WINDOW_WIDTH / 2;
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rect.y = DEFAULT_WINDOW_HEIGHT / 2;
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rect.w = 10;
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rect.h = 10;
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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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SDLTest_CommonQuit(state);
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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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