Drop Id tags and copyright notices from files

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

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
index 738b796c5981fa307c2f9e3f15bc4f94fed1b789..4744ebbdfbad3a61c209be9085a01e15c8e4b1bc 100644 (file)
--- a/source/pixelformat.cpp
+++ b/source/pixelformat.cpp
@@ -1,10 +1,4 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include "except.h"
 #include "pixelformat.h"
 
 using namespace std;
@@ -18,36 +12,71 @@ istream &operator>>(istream &in, PixelFormat &fmt)
 
        in>>word;
        if(word=="COLOR_INDEX")
-               fmt=COLOR_INDEX;
+               fmt = COLOR_INDEX;
        else if(word=="STENCIL_INDEX")
-               fmt=STENCIL_INDEX;
+               fmt = STENCIL_INDEX;
        else if(word=="DEPTH_COMPONENT")
-               fmt=DEPTH_COMPONENT;
+               fmt = DEPTH_COMPONENT;
        else if(word=="RED")
-               fmt=RED;
+               fmt = RED;
        else if(word=="GREEN")
-               fmt=GREEN;
+               fmt = GREEN;
        else if(word=="BLUE")
-               fmt=BLUE;
+               fmt = BLUE;
        else if(word=="ALPHA")
-               fmt=ALPHA;
+               fmt = ALPHA;
        else if(word=="RGB")
-               fmt=RGB;
+               fmt = RGB;
        else if(word=="RGBA")
-               fmt=RGBA;
+               fmt = RGBA;
        else if(word=="BGR")
-               fmt=BGR;
+               fmt = BGR;
        else if(word=="BGRA")
-               fmt=BGRA;
+               fmt = BGRA;
        else if(word=="LUMINANCE")
-               fmt=LUMINANCE;
+               fmt = LUMINANCE;
        else if(word=="LUMINANCE_ALPHA")
-               fmt=LUMINANCE_ALPHA;
+               fmt = LUMINANCE_ALPHA;
        else
                in.setstate(ios_base::failbit);
 
        return in;
 }
 
+PixelFormat pixelformat_from_graphics(Graphics::PixelFormat pf)
+{
+       switch(pf)
+       {
+       case Graphics::COLOR_INDEX: return COLOR_INDEX;
+       case Graphics::LUMINANCE: return LUMINANCE;
+       case Graphics::LUMINANCE_ALPHA: return LUMINANCE_ALPHA;
+       case Graphics::RGB: return RGB;
+       case Graphics::RGBA: return RGBA;
+       case Graphics::BGR: return BGR;
+       case Graphics::BGRA: return BGRA;
+       default: throw InvalidParameterValue("Unknown Graphics::PixelFormat");
+       }
+}
+
+PixelFormat get_base_pixelformat(PixelFormat pf)
+{
+       switch(pf)
+       {
+       case RGB8:
+       case RGB16F:
+       case RGB32F: return RGB;
+       case RGBA8:
+       case RGBA16F:
+       case RGBA32F: return RGBA;
+       case LUMINANCE8:
+       case LUMINANCE16F:
+       case LUMINANCE32F: return LUMINANCE;
+       case LUMINANCE_ALPHA8:
+       case LUMINANCE_ALPHA16F:
+       case LUMINANCE_ALPHA32F: return LUMINANCE_ALPHA;
+       default: return pf;
+       }
+}
+
 } // namespace GL
 } // namespace Msp