X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=image.c;h=192cb568d9eded768e0ab86197fb6be4b9959d57;hb=b009bbfa2e115145d2b36da89cc58196d6c11bca;hp=27fc794148762ed70fa2e4beeac839f3c76c0833;hpb=6abc2eef23f8062c5cbd880a681eb611b0b858a7;p=xonotic%2Fdarkplaces.git

diff --git a/image.c b/image.c
index 27fc7941..192cb568 100644
--- a/image.c
+++ b/image.c
@@ -7,6 +7,44 @@
 int		image_width;
 int		image_height;
 
+void Image_CopyMux(qbyte *outpixels, const qbyte *inpixels, int width, int height, int flipx, int flipy, int flipdiagonal, int numincomponents, int numoutcomponents, int *inputcomponentindices)
+{
+	int index, c, x, y;
+	const qbyte *in, *inrow, *incolumn;
+	if (flipdiagonal)
+	{
+		for (y = 0;y < height;y++)
+		{
+			incolumn = inpixels + (flipx ? width - 1 - y : y) * numincomponents;
+			for (x = 0;x < width;x++)
+			{
+				in = incolumn + (flipy ? height - 1 - x : x) * width * numincomponents;
+				for (c = 0;c < numoutcomponents;c++)
+				{
+					index = inputcomponentindices[c];
+					*outpixels++ = (index & 0x80000000) ? (index - 0x8000000) : in[index];
+				}
+			}
+		}
+	}
+	else
+	{
+		for (y = 0;y < height;y++)
+		{
+			inrow = inpixels + (flipy ? height - 1 - y : y) * width * numincomponents;
+			for (x = 0;x < width;x++)
+			{
+				in = inrow + (flipx ? width - 1 - x : x) * numincomponents;
+				for (c = 0;c < numoutcomponents;c++)
+				{
+					index = inputcomponentindices[c];
+					*outpixels++ = (index & 0x80000000) ? (index - 0x8000000) : in[index];
+				}
+			}
+		}
+	}
+}
+
 void Image_GammaRemapRGB(const qbyte *in, qbyte *out, int pixels, const qbyte *gammar, const qbyte *gammag, const qbyte *gammab)
 {
 	while (pixels--)