Implement automatic unloading when a total size limit is exceeded

[libs/gl.git] / source / pixelformat.cpp

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
index b8180b2fb75e559477c0388eddc53509f35263ba..7647717a44ad3d047e7bfbc0d386a575f5564701 100644 (file)
--- a/source/pixelformat.cpp
+++ b/source/pixelformat.cpp
@@ -148,6 +148,30 @@ unsigned get_component_count(PixelFormat pf)
        }
 }
 
+unsigned get_component_size(PixelFormat pf)
+{
+       switch(pf)
+       {
+       case RGB16F:
+       case RGBA16F:
+       case LUMINANCE16F:
+       case LUMINANCE_ALPHA16F:
+               return 2;
+       case RGB32F:
+       case RGBA32F:
+       case LUMINANCE32F:
+       case LUMINANCE_ALPHA32F:
+               return 4;
+       default:
+               return 1;
+       }
+}
+
+unsigned get_pixel_size(PixelFormat pf)
+{
+       return get_component_count(pf)*get_component_size(pf);
+}
+
 void require_pixelformat(PixelFormat pf)
 {
        switch(pf)