+/*
+=============
+R_Q1BSP_LoadSplitSky
+
+A sky texture is 256*128, with the right side being a masked overlay
+==============
+*/
+void R_Q1BSP_LoadSplitSky (qbyte *src, int bytesperpixel)
+{
+ int i, j;
+ unsigned solidpixels[128*128], alphapixels[128*128];
+
+ if (bytesperpixel == 4)
+ {
+ for (i = 0;i < 128;i++)
+ {
+ for (j = 0;j < 128;j++)
+ {
+ solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
+ alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
+ }
+ }
+ }
+ else
+ {
+ // make an average value for the back to avoid
+ // a fringe on the top level
+ int p, r, g, b;
+ union
+ {
+ unsigned int i;
+ unsigned char b[4];
+ }
+ rgba;
+ r = g = b = 0;
+ for (i = 0;i < 128;i++)
+ {
+ for (j = 0;j < 128;j++)
+ {
+ rgba.i = palette_complete[src[i*256 + j + 128]];
+ r += rgba.b[0];
+ g += rgba.b[1];
+ b += rgba.b[2];
+ }
+ }
+ rgba.b[0] = r/(128*128);
+ rgba.b[1] = g/(128*128);
+ rgba.b[2] = b/(128*128);
+ rgba.b[3] = 0;
+ for (i = 0;i < 128;i++)
+ {
+ for (j = 0;j < 128;j++)
+ {
+ solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
+ alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
+ }
+ }
+ }
+
+ loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (qbyte *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (qbyte *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
+}
+