Fix colour in ScreenShot

GL_RGBA -> GL_BGRA

Although... should probably have a means to detect which it is supposed to be
since it might be different on other machines?

diff --git a/src/screen.cpp b/src/screen.cpp
index 712bd26..683da4a 100644 (file)
--- a/src/screen.cpp
+++ b/src/screen.cpp
@@ -129,13 +129,13 @@ void Screen::ScreenShot(const char * filename) const
 
        int w = ViewportWidth();
        int h = ViewportHeight();
-       unsigned char * pixels = new unsigned char[w*h*4];
+       unsigned char * pixels = new unsigned char[w*h*3];
        if (pixels == NULL)
-               Fatal("Failed to allocate %d x %d x 4 = %d pixel array", w, h, w*h*4);
+               Fatal("Failed to allocate %d x %d x 4 = %d pixel array", w, h, w*h*3);
 
-       glReadPixels(0,0,w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+       glReadPixels(0,0,w, h, GL_BGRA, GL_UNSIGNED_BYTE, pixels);
 
-       SDL_Surface * surf = SDL_CreateRGBSurfaceFrom(pixels, w, h, 8*4, w*4, 0,0,0,0);
+       SDL_Surface * surf = SDL_CreateRGBSurfaceFrom(pixels, w, h, 8*3, w*3, 0,0,0,0);
        if (surf == NULL)
                Fatal("Failed to create SDL_Surface from pixel data - %s", SDL_GetError());