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https://github.com/Ryujinx/SDL.git
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b72938c861
An existing hint lets apps that don't need the timer resolution changed avoid this, to save battery, etc, but this fixes several problems in timing, audio callbacks not firing fast enough, etc. Fixes Bugzilla #2944.
122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/*
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Copyright (C) 1997-2014 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, 127, 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, 0xA0, 0xA0, 0xA0, 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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}
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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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