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/*
* Copyright 2015 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <SDL.h>
#include <emscripten.h>
#include <emscripten/html5.h>
static enum {
STATE_INITIAL, /* Initial state, click needed to enter full screen */
STATE_FS_REQ, /* After click, expecting to enter full screen */
STATE_FS, /* Should remain in full screen */
STATE_FS_QUIT_REQ, /* Second click, expecting to leave full screen */
STATE_FS_QUIT, /* Left full screen */
STATE_SUCCESS, /* Reported success, test finished */
STATE_ERROR /* Something went wrong, and an error was reported */
} state = STATE_INITIAL;
int result = 0;
#if SDL_VERSION_ATLEAST(2,0,0)
SDL_Window *window = 0;
SDL_Renderer *renderer = 0;
#else
SDL_Surface *screen = 0;
#endif
static void fail(const char *msg) {
printf("%s Test failed.\n", msg);
state = STATE_ERROR;
result = 0;
}
static EM_BOOL mouseup(int eventType,
const EmscriptenMouseEvent *keyEvent, void *userData) {
if (eventType == EMSCRIPTEN_EVENT_MOUSEUP) {
switch (state) {
case STATE_INITIAL:
#if SDL_VERSION_ATLEAST(2,0,0)
SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN);
#else
SDL_WM_ToggleFullScreen(screen);
#endif
state = STATE_FS_REQ;
break;
case STATE_FS:
#if SDL_VERSION_ATLEAST(2,0,0)
SDL_SetWindowFullscreen(window, 0);
#else
SDL_WM_ToggleFullScreen(screen);
#endif
state = STATE_FS_QUIT_REQ;
break;
case STATE_FS_QUIT:
case STATE_SUCCESS:
case STATE_ERROR:
break;
default:
fail("Unexpected click.");
break;
}
}
return 0;
}
static void render() {
#if SDL_VERSION_ATLEAST(2,0,0)
SDL_SetRenderDrawColor(renderer, 255, 255, 0, 255);
SDL_RenderClear(renderer);
SDL_RenderPresent(renderer);
#else
int width, height;
emscripten_get_canvas_element_size("#canvas", &width, &height);
SDL_Rect rect = { 0, 0, width, height };
SDL_FillRect(screen, &rect, 0xff00ffff);
#endif
}
static void mainloop() {
render();
int isInFullscreen = EM_ASM_INT(return !!(document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.msFullscreenElement));
switch (state) {
case STATE_INITIAL:
if (isInFullscreen) fail("Unexpected full screen.");
break;
case STATE_FS_REQ:
if (isInFullscreen) {
state = STATE_FS;
printf("Successfully transitioned to fullscreen mode.\n");
}
break;
case STATE_FS:
if (!isInFullscreen) fail("Unexpectedly left full screen.");
break;
case STATE_FS_QUIT_REQ:
if (!isInFullscreen) {
state = STATE_FS_QUIT;
/* One more render() call is needed to make sure canvas is yellow,
* so don't quit yet.
*/
}
break;
case STATE_FS_QUIT:
if (isInFullscreen) fail("Unexpected full screen.");
state = STATE_SUCCESS;
printf("Exited fullscreen. Test succeeded.\n");
result = 1;
break;
case STATE_ERROR:
case STATE_SUCCESS:
#ifdef REPORT_RESULT
{
REPORT_RESULT(result);
}
#endif
emscripten_cancel_main_loop();
break;
}
}
int main() {
SDL_Init(SDL_INIT_VIDEO);
#if SDL_VERSION_ATLEAST(2,0,0)
window = SDL_CreateWindow(NULL, 0, 0, 600, 450, SDL_WINDOW_SHOWN);
renderer = SDL_CreateRenderer(window, -1, 0);
#else
screen = SDL_SetVideoMode(600, 450, 32, SDL_HWSURFACE);
#endif
/* SDL 1 limits which events can be used here.
* Click and mouseup don't work.
*/
if (emscripten_set_mouseup_callback("#canvas", NULL, 1, mouseup) != EMSCRIPTEN_RESULT_SUCCESS) {
printf("Couldn't to set mouse callback. Test failed.\n");
return 1;
}
printf("You should see a yellow canvas.\n");
printf("Click on the canvas to enter full screen, and then click on the canvas again to finish the test.\n");
printf("When in full screen, you should see the whole screen filled yellow.\n");
printf("After exiting, the yellow canvas should be restored in the window.\n");
emscripten_set_main_loop(mainloop, 0, 0);
return 0;
}
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