1 files changed, 14 insertions, 7 deletions
diff --git a/src/library_sdl.js b/src/library_sdl.js
index 9231f41b..7c0593b2 100644
--- a/src/library_sdl.js
+++ b/src/library_sdl.js
@@ -883,6 +883,14 @@ var LibrarySDL = {
     surfData.locked++;
     if (surfData.locked > 1) return 0;
 
+    // Mark in C/C++-accessible SDL structure
+    // SDL_Surface has the following fields: Uint32 flags, SDL_PixelFormat *format; int w, h; Uint16 pitch; void *pixels; ...
+    // So we have fields all of the same size, and 5 of them before us.
+    // TODO: Use macros like in library.js
+    {{{ makeSetValue('surf', '5*Runtime.QUANTUM_SIZE', 'surfData.buffer', 'void*') }}};
+
+    if (surf == SDL.screen && Module.screenIsReadOnly && surfData.image) return 0;
+
     surfData.image = surfData.ctx.getImageData(0, 0, surfData.width, surfData.height);
     if (surf == SDL.screen) {
       var data = surfData.image.data;
@@ -925,12 +933,6 @@ var LibrarySDL = {
       }
     }
 
-    // Mark in C/C++-accessible SDL structure
-    // SDL_Surface has the following fields: Uint32 flags, SDL_PixelFormat *format; int w, h; Uint16 pitch; void *pixels; ...
-    // So we have fields all of the same size, and 5 of them before us.
-    // TODO: Use macros like in library.js
-    {{{ makeSetValue('surf', '5*Runtime.QUANTUM_SIZE', 'surfData.buffer', 'void*') }}};
-
     return 0;
   },
 
@@ -1271,6 +1273,11 @@ var LibrarySDL = {
     return 1;
   },
 
+  SDL_SetPalette__deps: ['SDL_SetColors'],
+  SDL_SetPalette: function(surf, flags, colors, firstColor, nColors) {
+    return _SDL_SetColors(surf, colors, firstColor, nColors);
+  },
+
   SDL_MapRGB: function(fmt, r, g, b) {
     // Canvas screens are always RGBA. We assume the machine is little-endian.
     return r&0xff|(g&0xff)<<8|(b&0xff)<<16|0xff000000;
@@ -2276,7 +2283,7 @@ var LibrarySDL = {
   SDL_CondWaitTimeout: function() { throw 'SDL_CondWaitTimeout: TODO' },
   SDL_WM_IconifyWindow: function() { throw 'SDL_WM_IconifyWindow TODO' },
 
-  Mix_SetPostMix: function() { throw 'Mix_SetPostMix: TODO' },
+  Mix_SetPostMix: function() { Runtime.warnOnce('Mix_SetPostMix: TODO') },
   Mix_QuerySpec: function() { throw 'Mix_QuerySpec: TODO' },
   Mix_FadeInChannelTimed: function() { throw 'Mix_FadeInChannelTimed' },
   Mix_FadeOutChannel: function() { throw 'Mix_FadeOutChannel' },