X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpixelformat.cpp;h=7647717a44ad3d047e7bfbc0d386a575f5564701;hb=00d3ccedefb1a5efb3d2d4625a2b68446703fbab;hp=027ae88c7fe1bb7c5e11290ef5133e3c143b8d05;hpb=5a93cc603eef43617a10b76bc9c19a3272ac1d49;p=libs%2Fgl.git

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
index 027ae88c..7647717a 100644
--- a/source/pixelformat.cpp
+++ b/source/pixelformat.cpp
@@ -105,6 +105,22 @@ PixelFormat get_base_pixelformat(PixelFormat pf)
 	}
 }
 
+PixelFormat get_srgb_pixelformat(PixelFormat pf)
+{
+	switch(pf)
+	{
+	case RGB: return SRGB;
+	case RGBA: return SRGB_ALPHA;
+	case RGB8: return SRGB8;
+	case RGBA8: return SRGB8_ALPHA8;
+	case LUMINANCE: return SLUMINANCE;
+	case LUMINANCE8: return SLUMINANCE8;
+	case LUMINANCE_ALPHA: return SLUMINANCE_ALPHA;
+	case LUMINANCE_ALPHA8: return SLUMINANCE8_ALPHA8;
+	default: return pf;
+	}
+}
+
 unsigned get_component_count(PixelFormat pf)
 {
 	switch(get_base_pixelformat(pf))
@@ -132,6 +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)