Merge pull request #1393 from fhd/sdl-surface-refcount

Implement SDL_Surface refcounting

2 files changed, 31 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index fc41c8a1..d16472ad 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -13523,6 +13523,9 @@ Press any key to continue.'''
     def test_sdl_alloctext(self):
       self.btest('sdl_alloctext.c', expected='1', args=['-O2', '-s', 'TOTAL_MEMORY=' + str(1024*1024*8)])
 
+    def test_sdl_surface_refcount(self):
+      self.btest('sdl_surface_refcount.c', expected='1')
+
     def test_glbegin_points(self):
       shutil.copyfile(path_from_root('tests', 'screenshot.png'), os.path.join(self.get_dir(), 'screenshot.png'))
       self.btest('glbegin_points.c', reference='glbegin_points.png', args=['--preload-file', 'screenshot.png'])
diff --git a/tests/sdl_surface_refcount.c b/tests/sdl_surface_refcount.c
new file mode 100644
index 00000000..5e0f30a9
--- /dev/null
+++ b/tests/sdl_surface_refcount.c
@@ -0,0 +1,28 @@
+#include <emscripten.h>
+#include <SDL.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int is_surface_freed(SDL_Surface *surface)
+{
+    const char *template = "!SDL.surfaces[%d]";
+    int length = snprintf(NULL, 0, template, surface) + 1;
+    char *script = malloc(length * sizeof(char));
+    snprintf(script, length, template, surface);
+    int is_freed = emscripten_run_script_int(script);
+    free(script);
+    return is_freed;
+}
+
+int main(int argc, char *argv[])
+{
+    SDL_Surface *surface = SDL_CreateRGBSurface(SDL_SWSURFACE, 10, 10, 32,
+                                                0, 0, 0, 0);
+    SDL_Surface *reference = surface;
+    reference->refcount++;
+    SDL_FreeSurface(surface);
+    SDL_FreeSurface(reference);
+    int result = is_surface_freed(surface);
+    REPORT_RESULT();
+    return 0;
+}