85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
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/* OpenSceneGraph example, emscripten.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <emscripten.h>
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#include <SDL2/SDL.h>
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#include "osgemscripten.h"
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// We use app global variable in loop() function.
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Application *app = 0;
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// Stand alone function that is called by Emscripten to run the app.
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void loop()
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{
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SDL_Event e;
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while (SDL_PollEvent(&e))
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{
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if (app)
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{
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app->handleEvent(e);
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}
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}
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if (app)
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{
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app->frame();
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}
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}
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int main(int argc, char *argv[])
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{
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// Make sure SDL is working.
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if (SDL_Init(SDL_INIT_VIDEO) < 0)
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{
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printf("OSGWeb. Could not init SDL: '%s'\n", SDL_GetError());
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return 1;
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}
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// Clean SDL up at exit.
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atexit(SDL_Quit);
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// Configure rendering context.
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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// Create rendering window.
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int width = 800;
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int height = 600;
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SDL_Window* window =
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SDL_CreateWindow(
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"OSGWeb",
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SDL_WINDOWPOS_CENTERED,
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SDL_WINDOWPOS_CENTERED,
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width,
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height,
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SDL_WINDOW_OPENGL);
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if (!window)
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{
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printf("OSGWeb. Could not create window: '%s'\n", SDL_GetError());
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return 1;
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}
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SDL_GL_CreateContext(window);
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// Create application.
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app = new Application;
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app->setupWindow(width, height);
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app->loadScene("box.osgt");
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// Render asynchronously.
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emscripten_set_main_loop(loop, -1, 0);
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return 0;
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}
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