minimal support for SDL text rendering

2 files changed, 52 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index c34334ea..66934895 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -6375,6 +6375,12 @@ f.close()
           shutil.move(os.path.join(self.get_dir(), basename), basename + '.renamedsoitcannotbefound');
         self.run_browser('page.html', '', '/report_result?' + str(width))
 
+    def test_sdl_font(self):
+      open(os.path.join(self.get_dir(), 'sdl_font.c'), 'w').write(self.with_report_result(open(path_from_root('tests', 'sdl_font.c')).read()))
+
+      Popen(['python', EMCC, os.path.join(self.get_dir(), 'sdl_font.c'), '-o', 'page.html']).communicate()
+      self.run_browser('page.html', '', '/report_result?80')
+
     def test_worker(self):
       # Test running in a web worker
       output = Popen(['python', EMCC, path_from_root('tests', 'hello_world_worker.cpp'), '-o', 'worker.js'], stdout=PIPE, stderr=PIPE).communicate()
diff --git a/tests/sdl_font.c b/tests/sdl_font.c
new file mode 100644
index 00000000..f4f26355
--- /dev/null
+++ b/tests/sdl_font.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_ttf.h>
+#include <emscripten.h>
+
+int main() {
+  SDL_Init(SDL_INIT_VIDEO);
+  SDL_Surface *screen = SDL_SetVideoMode(600, 450, 32, SDL_HWSURFACE);
+
+  printf("Init: %d\n", TTF_Init());
+
+  TTF_Font *font = TTF_OpenFont("myfont.ttf", 40);
+  printf("Font: %p\n", font);
+
+  SDL_Color color = { 0xff, 0x99, 0x00, 0x77 };
+
+  SDL_Surface *text = TTF_RenderText_Solid(font, "hello orange world", color);
+  SDL_LockSurface(text);
+  int sum = 0;
+  for (int i = 0; i < text->h; i++) {
+    sum += *((char*)text->pixels + i*text->w*4 + i*4 + 0);
+  }
+  printf("Sum: %d\n", sum);
+  SDL_UnlockSurface(text);
+
+  SDL_Color color2 = { 0xbb, 0, 0xff, 0 };
+  SDL_Surface *text2 = TTF_RenderText_Solid(font, "a second line, purple", color2);
+
+  // render
+  SDL_Rect dest = { 0, 50, 0, 0 };
+  SDL_BlitSurface (text, NULL, screen, NULL);
+  dest.y = 100;
+  SDL_BlitSurface (text2, NULL, screen, &dest);
+
+  SDL_Flip(screen); 
+
+  printf("you should see two lines of text in different colors.\n");
+
+  SDL_Quit();
+
+  int result = sum;
+  REPORT_RESULT();
+
+  return 0;
+}
+