1 files changed, 34 insertions, 0 deletions
diff --git a/tests/sdl_canvas_proxy.c b/tests/sdl_canvas_proxy.c
new file mode 100644
index 00000000..27ef3bb4
--- /dev/null
+++ b/tests/sdl_canvas_proxy.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <SDL/SDL.h>
+#include <assert.h>
+#include <emscripten.h>
+
+int main(int argc, char **argv) {
+  FILE *f = fopen("data.txt", "rb");
+  assert(f);
+  assert(fgetc(f) == 'd');
+  assert(fgetc(f) == 'a');
+  assert(fgetc(f) == 't');
+  assert(fgetc(f) == 'u');
+  assert(fgetc(f) == 'm');
+  fclose(f);
+
+  SDL_Init(SDL_INIT_VIDEO);
+  SDL_Surface *screen = SDL_SetVideoMode(600, 450, 32, SDL_HWSURFACE);
+
+  SDL_LockSurface(screen);
+  unsigned int *pixels = (unsigned int *)screen->pixels;
+  for (int x = 0; x < screen->w; x++) {
+    for (int y = 0; y < screen->h; y++) {
+      pixels[x + y*screen->h] = x < 300 ? (y < 200 ? 0x3377AA88 : 0xAA3377CC) : (y < 200 ? 0x0066AA77 : 0xAA006699);
+    }
+  }
+  SDL_UnlockSurface(screen);
+
+  SDL_Quit();
+
+  EM_ASM(window.close());
+  return 0;
+}
+