Add compatibility support for slope-based animation interpolation

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

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
index e915e92fa61160908f8639828ffac60c89b893a7..0b13f3ccefa7fe53cf2e5868b157a7d0c0e5588b 100644 (file)
--- a/source/pixelformat.cpp
+++ b/source/pixelformat.cpp
@@ -124,14 +124,7 @@ PixelFormat get_sized_pixelformat(PixelFormat pf, unsigned size)
        if(!size || size>4)
                throw invalid_argument("get_sized_pixelformat");
 
-       switch(pf)
-       {
-       case SRGB:
-       case SRGB_ALPHA: break;
-       case SRGB8: pf = SRGB; break;
-       case SRGB8_ALPHA8: pf = SRGB_ALPHA; break;
-       default: pf = get_base_pixelformat(pf);
-       }
+       pf = get_unsized_pixelformat(pf);
 
        switch(size)
        {
@@ -180,6 +173,20 @@ PixelFormat get_sized_pixelformat(PixelFormat pf, unsigned size)
        }
 }
 
+PixelFormat get_default_sized_pixelformat(PixelFormat pf)
+{
+       pf = get_unsized_pixelformat(pf);
+       unsigned size = 1;
+       if(pf==DEPTH_COMPONENT)
+       {
+               if(get_gl_api()==OPENGL_ES2 && !ARB_depth_buffer_float)
+                       size = 2;
+               else
+                       size = 4;
+       }
+       return get_sized_pixelformat(pf, size);
+}
+
 PixelFormat get_srgb_pixelformat(PixelFormat pf)
 {
        switch(pf)