2 Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
4 This software is provided 'as-is', without any express or implied
5 warranty. In no event will the authors be held liable for any damages
6 arising from the use of this software.
8 Permission is granted to anyone to use this software for any purpose,
9 including commercial applications, and to alter it and redistribute it
13 /* Simple program: Test relative mouse motion */
19 #include "SDL_test_common.h"
20 #define WINDOW_WIDTH 720
21 #define WINDOW_HEIGHT 1280
23 #include <emscripten/emscripten.h>
26 static SDLTest_CommonState *state;
32 DrawRects(SDL_Renderer * renderer, SDL_Rect * rect)
34 SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
35 SDL_RenderFillRect(renderer, rect);
40 /* Check for events */
41 while (SDL_PollEvent(&event)) {
42 SDLTest_CommonEvent(state, &event, &done);
46 rect.x += event.motion.xrel;
47 rect.y += event.motion.yrel;
51 if(event.key.keysym.sym == 0)
58 for (i = 0; i < state->num_windows; ++i) {
60 SDL_Renderer *renderer = state->renderers[i];
61 if (state->windows[i] == NULL)
63 SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0xFF);
64 SDL_RenderClear(renderer);
66 /* Wrap the cursor rectangle at the screen edges to keep it visible */
67 SDL_RenderGetViewport(renderer, &viewport);
68 if (rect.x < viewport.x) rect.x += viewport.w;
69 if (rect.y < viewport.y) rect.y += viewport.h;
70 if (rect.x > viewport.x + viewport.w) rect.x -= viewport.w;
71 if (rect.y > viewport.y + viewport.h) rect.y -= viewport.h;
73 DrawRects(renderer, &rect);
75 SDL_RenderPresent(renderer);
79 emscripten_cancel_main_loop();
84 SDL_main(int argc, char *argv[])
86 /* Enable standard application logging */
87 SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
89 /* Initialize test framework */
90 state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
91 state->window_w = WINDOW_WIDTH;
92 state->window_h = WINDOW_HEIGHT;
96 for (i = 1; i < argc; ++i) {
97 SDLTest_CommonArg(state, i);
99 if (!SDLTest_CommonInit(state)) {
103 /* Create the windows and initialize the renderers */
104 for (i = 0; i < state->num_windows; ++i) {
105 SDL_Renderer *renderer = state->renderers[i];
106 SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
107 SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
108 SDL_RenderClear(renderer);
111 srand((unsigned int)time(NULL));
112 if(SDL_SetRelativeMouseMode(SDL_TRUE) < 0) {
116 rect.x = WINDOW_WIDTH / 2;
117 rect.y = WINDOW_HEIGHT / 2;
120 /* Main render loop */
122 #ifdef __EMSCRIPTEN__
123 emscripten_set_main_loop(loop, 0, 1);
129 SDLTest_CommonQuit(state);
133 /* vi: set ts=4 sw=4 expandtab: */