Initial. Don't... just don't ask.

gl/palette.c

@@ -0,0 +1,71 @@
+/* Framebuffer Graphics Libary for Linux, Copyright 1993 Harm Hanemaayer */
+/* palette.c    Palette functions (wrapper over vgalib) */
+
+
+#include <stdlib.h>
+#include <vga.h>
+
+#include "vgagl.h"
+#include "def.h"
+
+
+/* 256-color palette functions */
+
+/* There was a horrible bug here in 0.8x -- green and blue were swapped... */
+void gl_getpalettecolor(int c, int *r, int *g, int *b)
+{
+    vga_getpalette(c, r, g, b);
+}
+
+void gl_setpalettecolor(int c, int r, int g, int b)
+{
+    vga_setpalette(c, r, g, b);
+}
+
+void gl_setpalettecolors(int s, int n, void *_dp)
+{
+    uchar *dp = _dp;
+    int i;
+    for (i = s; i < s + n; i++) {
+	unsigned char r, g, b;
+	r = *(dp++);
+	g = *(dp++);
+	b = *(dp++);
+	vga_setpalette(i, r, g, b);
+    }
+}
+
+void gl_getpalettecolors(int s, int n, void *_dp)
+{
+    uchar *dp = _dp;
+    int i;
+    for (i = s; i < s + n; i++) {
+	int r, g, b;
+	vga_getpalette(i, &r, &g, &b);
+	*(dp++) = (unsigned char) r;
+	*(dp++) = (unsigned char) g;
+	*(dp++) = (unsigned char) b;
+    }
+}
+
+void gl_getpalette(void *p)
+{
+    gl_getpalettecolors(0, 256, p);
+}
+
+void gl_setpalette(void *p)
+{
+    gl_setpalettecolors(0, 256, p);
+}
+
+void gl_setrgbpalette()
+{
+    int i;
+    Palette pal;
+    for (i = 0; i < 256; i++) {
+	pal.color[i].blue = (i & 7) * (64 / 8);		/* 3 bits */
+	pal.color[i].green = ((i & 56) >> 3) * (64 / 8);	/* 3 bits */
+	pal.color[i].red = ((i & 192) >> 6) * (64 / 4);		/* 2 bits */
+    }
+    gl_setpalette(&pal);
+}