> Also, my end goal is to port a small game and I appreciate if you could point me to some basic working examples using SDL2 and Open GL, since the ones I found seems outdated.
The test suite has many working examples - look in tests/test_browser.py (tests with "sdl2" in the name use SDL2, etc. - can also search by emcc flags in that file). On Sun, Mar 17, 2019 at 3:44 PM Frederico Zveiter < [email protected]> wrote: > Hi everyone! > > I'm trying my first steps on emscripten but have bumped on a wall. > I'm trying to run a very basic hello world style empty canvas SDL2. > It compiles well but when I run it seems that the generated js is not able > to grab the canvas element. > > If I compile with 'emcc main.cpp -v --emrun -s USE_SDL=2 -o > Build\main.html' it gives me the following error: "Rules for selecting > event targets in HTML5 API are changing: instead of using > document.getElementById() that only can refer to elements by their DOM ID, > new event target selection mechanism uses the more flexible function > document.querySelector() that can look up element names, classes, and > complex CSS selectors. Build with -s > DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1 to change to the new lookup > rules. See https://github.com/emscripten-core/emscripten/pull/7977 for > more details." > > And if I compile with 'emcc main.cpp -v --emrun -s USE_SDL=2 -s > DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1 -o Build\main.html' it > gives me this other one: "exception thrown: SyntaxError: '' is not a valid > selector,__findEventTarget@http://localhost:6931/main.js:6696:92 > __findCanvasEventTarget@http://localhost:6931/main.js:6702:56 > _emscripten_set_canvas_element_size@http://localhost:6931/main.js:6722:20 > @http://localhost:6931/main.wasm:wasm-function[734]:0xedf0e > @http://localhost:6931/main.wasm:wasm-function[1007]:0x10d013 > @http://localhost:6931/main.wasm:wasm-function[1006]:0x10c3c4 > @http://localhost:6931/main.wasm:wasm-function[279]:0xe3b7 > Module._main@http://localhost:6931/main.js:9629:10 > callMain@http://localhost:6931/main.js:9921:15 > doRun@http://localhost:6931/main.js:9979:42 > run/<@http://localhost:6931/main.js:9990:7"; > > I'm using emscripten version 1.38.29. > Tested in Chrome 73.0.3683.75 (64 bits) and Firefox 65.0.2 (64 bits) > > Here is the code for main.cpp: > #include <SDL.h> > int main(int argc, char* argv[]) > { > SDL_Init(SDL_INIT_VIDEO); > SDL_Window *window; > SDL_Renderer *renderer; > SDL_CreateWindowAndRenderer(256, 256, 0, &window, &renderer); > SDL_Surface *screen = SDL_CreateRGBSurface(0, 256, 256, 8, 0, 0, 0, 0); > if (SDL_MUSTLOCK(screen)) SDL_LockSurface(screen); > if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen); > SDL_RenderPresent(renderer); > SDL_Quit(); > return 0; > } > > Also, my end goal is to port a small game and I appreciate if you could > point me to some basic working examples using SDL2 and Open GL, since the > ones I found seems outdated. > > Thanks! > Fred > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/CAEX4NpTk0182V8nrp4csN%3DsYBvo653qwHP2ZBWqbGgQrgS6Acg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
