From 840782235ce2b75447f8cbddfd50519dc429938e Mon Sep 17 00:00:00 2001
From: Amadeus <gliheng@gmail.com>
Date: Mon, 10 Jun 2019 16:46:53 -0700
Subject: [PATCH] IMG_Load should attempt to read from preloaded data (#7)

---
 IMG.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/IMG.c b/IMG.c
index a213f9e6..8bc65221 100644
--- a/IMG.c
+++ b/IMG.c
@@ -128,6 +128,22 @@ void IMG_Quit()
 /* Load an image from a file */
 SDL_Surface *IMG_Load(const char *file)
 {
+#if __EMSCRIPTEN__
+    int w, h;
+    char *data;
+    SDL_Surface *surf;
+
+    data = emscripten_get_preloaded_image_data(file, &w, &h);
+    if (data != NULL) {
+        surf = SDL_CreateRGBSurface(0, w, h, 32, 0xFF, 0xFF00, 0xFF0000, 0xFF000000);
+        if (surf != NULL) {
+            memcpy(surf->pixels, data, w * h * 4);
+        }
+        free(data);
+        return surf;
+    }
+#endif
+
     SDL_RWops *src = SDL_RWFromFile(file, "rb");
     const char *ext = SDL_strrchr(file, '.');
     if(ext) {