Change outline function to better quality but slower.

Also add function to create 32 bit surfaces.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/resources/openglimagehelper.cpp b/src/resources/openglimagehelper.cpp
index 7e5c77c7f..badaf0223 100644
--- a/src/resources/openglimagehelper.cpp
+++ b/src/resources/openglimagehelper.cpp
@@ -318,4 +318,26 @@ void OpenGLImageHelper::initTextureSampler(GLint id)
         mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     }
 }
+
+SDL_Surface *OpenGLImageHelper::create32BitSurface(int width, int height)
+{
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+    const int rmask = 0xff000000;
+    const int gmask = 0x00ff0000;
+    const int bmask = 0x0000ff00;
+    const int amask = 0x000000ff;
+#else
+    const int rmask = 0x000000ff;
+    const int gmask = 0x0000ff00;
+    const int bmask = 0x00ff0000;
+    const int amask = 0xff000000;
+#endif
+
+    width = powerOfTwo(width);
+    height = powerOfTwo(height);
+
+    return SDL_CreateRGBSurface(SDL_SWSURFACE,
+        width, height, 32, rmask, gmask, bmask, amask);
+}
+
 #endif