-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ color.c for the Openbox window manager
+ Copyright (c) 2006 Mikael Magnusson
+ Copyright (c) 2003-2007 Dana Jansens
+ Copyright (c) 2003 Derek Foreman
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
#include "render.h"
#include "color.h"
-#include "../kernel/openbox.h"
-void color_allocate_gc(color_rgb *in)
+#include "instance.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <string.h>
+
+void RrColorAllocateGC(RrColor *in)
{
XGCValues gcv;
gcv.foreground = in->pixel;
gcv.cap_style = CapProjecting;
- in->gc = XCreateGC(ob_display, ob_root, GCForeground | GCCapStyle, &gcv);
+ in->gc = XCreateGC(RrDisplay(in->inst),
+ RrRootWindow(in->inst),
+ GCForeground | GCCapStyle, &gcv);
}
-color_rgb *color_parse(char *colorname)
+RrColor *RrColorParse(const RrInstance *inst, gchar *colorname)
{
XColor xcol;
g_assert(colorname != NULL);
- // get rgb values from colorname
+ /* get rgb values from colorname */
xcol.red = 0;
xcol.green = 0;
xcol.blue = 0;
xcol.pixel = 0;
- if (!XParseColor(ob_display, render_colormap, colorname, &xcol)) {
- g_warning("unable to parse color '%s'", colorname);
- return NULL;
+ if (!XParseColor(RrDisplay(inst), RrColormap(inst), colorname, &xcol)) {
+ g_message("Unable to parse color '%s'", colorname);
+ return NULL;
}
- return color_new(xcol.red >> 8, xcol.green >> 8, xcol.blue >> 8);
+ return RrColorNew(inst, xcol.red >> 8, xcol.green >> 8, xcol.blue >> 8);
}
-color_rgb *color_new(int r, int g, int b)
+/*#define NO_COLOR_CACHE*/
+#ifdef DEBUG
+gint id;
+#endif
+
+RrColor *RrColorNew(const RrInstance *inst, gint r, gint g, gint b)
{
-/* this should be replaced with something far cooler */
- color_rgb *out;
+ /* this should be replaced with something far cooler */
+ RrColor *out = NULL;
XColor xcol;
- xcol.red = (r << 8) | r;
- xcol.green = (g << 8) | g;
- xcol.blue = (b << 8) | b;
- if (XAllocColor(ob_display, render_colormap, &xcol)) {
- out = g_new(color_rgb, 1);
- out->r = xcol.red >> 8;
- out->g = xcol.green >> 8;
- out->b = xcol.blue >> 8;
- out->gc = None;
- out->pixel = xcol.pixel;
- return out;
+ gint key;
+
+ g_assert(r >= 0 && r < 256);
+ g_assert(g >= 0 && g < 256);
+ g_assert(b >= 0 && b < 256);
+
+ key = (r << 24) + (g << 16) + (b << 8);
+#ifndef NO_COLOR_CACHE
+ if ((out = g_hash_table_lookup(RrColorHash(inst), &key))) {
+ out->refcount++;
+ } else {
+#endif
+ xcol.red = (r << 8) | r;
+ xcol.green = (g << 8) | g;
+ xcol.blue = (b << 8) | b;
+ if (XAllocColor(RrDisplay(inst), RrColormap(inst), &xcol)) {
+ out = g_new(RrColor, 1);
+ out->inst = inst;
+ out->r = xcol.red >> 8;
+ out->g = xcol.green >> 8;
+ out->b = xcol.blue >> 8;
+ out->gc = None;
+ out->pixel = xcol.pixel;
+ out->key = key;
+ out->refcount = 1;
+#ifdef DEBUG
+ out->id = id++;
+#endif
+#ifndef NO_COLOR_CACHE
+ g_hash_table_insert(RrColorHash(inst), &out->key, out);
+ }
+#endif
+ }
+ return out;
+}
+
+void RrColorFree(RrColor *c)
+{
+ if (c) {
+ if (--c->refcount < 1) {
+#ifndef NO_COLOR_CACHE
+ g_assert(g_hash_table_lookup(RrColorHash(c->inst), &c->key));
+ g_hash_table_remove(RrColorHash(c->inst), &c->key);
+#endif
+ if (c->pixel) XFreeColors(RrDisplay(c->inst), RrColormap(c->inst),
+ &c->pixel, 1, 0);
+ if (c->gc) XFreeGC(RrDisplay(c->inst), c->gc);
+ g_free(c);
+ }
+ }
+}
+
+void RrReduceDepth(const RrInstance *inst, RrPixel32 *data, XImage *im)
+{
+ gint r, g, b;
+ gint x,y;
+ RrPixel32 *p32 = (RrPixel32 *) im->data;
+ RrPixel16 *p16 = (RrPixel16 *) im->data;
+ RrPixel8 *p8 = (RrPixel8 *) im->data;
+ switch (im->bits_per_pixel) {
+ case 32:
+ if ((RrRedOffset(inst) != RrDefaultRedOffset) ||
+ (RrBlueOffset(inst) != RrDefaultBlueOffset) ||
+ (RrGreenOffset(inst) != RrDefaultGreenOffset)) {
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (data[x] >> RrDefaultRedOffset) & 0xFF;
+ g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
+ b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
+ p32[x] = (r << RrRedOffset(inst))
+ + (g << RrGreenOffset(inst))
+ + (b << RrBlueOffset(inst));
+ }
+ data += im->width;
+ p32 += im->width;
+ }
+ } else im->data = (gchar*) data;
+ break;
+ case 16:
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (data[x] >> RrDefaultRedOffset) & 0xFF;
+ r = r >> RrRedShift(inst);
+ g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
+ g = g >> RrGreenShift(inst);
+ b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
+ b = b >> RrBlueShift(inst);
+ p16[x] = (r << RrRedOffset(inst))
+ + (g << RrGreenOffset(inst))
+ + (b << RrBlueOffset(inst));
+ }
+ data += im->width;
+ p16 += im->bytes_per_line/2;
+ }
+ break;
+ case 8:
+ if (RrVisual(inst)->class == TrueColor) {
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (data[x] >> RrDefaultRedOffset) & 0xFF;
+ r = r >> RrRedShift(inst);
+ g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
+ g = g >> RrGreenShift(inst);
+ b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
+ b = b >> RrBlueShift(inst);
+ p8[x] = (r << RrRedOffset(inst))
+ + (g << RrGreenOffset(inst))
+ + (b << RrBlueOffset(inst));
+ }
+ data += im->width;
+ p8 += im->bytes_per_line;
+ }
+ } else {
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ p8[x] = RrPickColor(inst,
+ data[x] >> RrDefaultRedOffset,
+ data[x] >> RrDefaultGreenOffset,
+ data[x] >> RrDefaultBlueOffset)->pixel;
+ }
+ data += im->width;
+ p8 += im->bytes_per_line;
+ }
+ }
+ break;
+ default:
+ g_error("Your bit depth is currently unhandled\n");
+
+ }
+}
+
+XColor *RrPickColor(const RrInstance *inst, gint r, gint g, gint b)
+{
+ r = (r & 0xff) >> (8-RrPseudoBPC(inst));
+ g = (g & 0xff) >> (8-RrPseudoBPC(inst));
+ b = (b & 0xff) >> (8-RrPseudoBPC(inst));
+ return &RrPseudoColors(inst)[(r << (2*RrPseudoBPC(inst))) +
+ (g << (1*RrPseudoBPC(inst))) +
+ b];
+}
+
+static void swap_byte_order(XImage *im)
+{
+ gint x, y, di;
+
+ di = 0;
+ for (y = 0; y < im->height; ++y) {
+ for (x = 0; x < im->height; ++x) {
+ gchar *c = &im->data[di + x * im->bits_per_pixel / 8];
+ gchar t;
+
+ switch (im->bits_per_pixel) {
+ case 32:
+ t = c[2];
+ c[2] = c[3];
+ c[3] = t;
+ case 16:
+ t = c[0];
+ c[0] = c[1];
+ c[1] = t;
+ case 8:
+ case 1:
+ break;
+ default:
+ g_error("Your bit depth (%i) is currently unhandled",
+ im->bits_per_pixel);
+ }
+ }
+ di += im->bytes_per_line;
}
- return NULL;
+
+ if (im->byte_order == LSBFirst)
+ im->byte_order = MSBFirst;
+ else
+ im->byte_order = LSBFirst;
}
-//XXX same color could be pointed to twice, this might have to be a refcount
+void RrIncreaseDepth(const RrInstance *inst, RrPixel32 *data, XImage *im)
+{
+ gint r, g, b;
+ gint x,y;
+ RrPixel32 *p32 = (RrPixel32 *) im->data;
+ RrPixel16 *p16 = (RrPixel16 *) im->data;
+ guchar *p8 = (guchar *)im->data;
+
+ if (im->byte_order != LSBFirst)
+ swap_byte_order(im);
+
+ switch (im->bits_per_pixel) {
+ case 32:
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (p32[x] >> RrRedOffset(inst)) & 0xff;
+ g = (p32[x] >> RrGreenOffset(inst)) & 0xff;
+ b = (p32[x] >> RrBlueOffset(inst)) & 0xff;
+ data[x] = (r << RrDefaultRedOffset)
+ + (g << RrDefaultGreenOffset)
+ + (b << RrDefaultBlueOffset)
+ + (0xff << RrDefaultAlphaOffset);
+ }
+ data += im->width;
+ p32 += im->bytes_per_line/4;
+ }
+ break;
+ case 16:
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (p16[x] & RrRedMask(inst)) >>
+ RrRedOffset(inst) <<
+ RrRedShift(inst);
+ g = (p16[x] & RrGreenMask(inst)) >>
+ RrGreenOffset(inst) <<
+ RrGreenShift(inst);
+ b = (p16[x] & RrBlueMask(inst)) >>
+ RrBlueOffset(inst) <<
+ RrBlueShift(inst);
+ data[x] = (r << RrDefaultRedOffset)
+ + (g << RrDefaultGreenOffset)
+ + (b << RrDefaultBlueOffset)
+ + (0xff << RrDefaultAlphaOffset);
+ }
+ data += im->width;
+ p16 += im->bytes_per_line/2;
+ }
+ break;
+ case 8:
+ g_error("This image bit depth (%i) is currently unhandled", 8);
+ break;
+ case 1:
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ if (!(((p8[x / 8]) >> (x % 8)) & 0x1))
+ data[x] = 0xff << RrDefaultAlphaOffset; /* black */
+ else
+ data[x] = 0xffffffff; /* white */
+ }
+ data += im->width;
+ p8 += im->bytes_per_line;
+ }
+ break;
+ default:
+ g_error("This image bit depth (%i) is currently unhandled",
+ im->bits_per_pixel);
+ }
+}
+
+gint RrColorRed(const RrColor *c)
+{
+ return c->r;
+}
+
+gint RrColorGreen(const RrColor *c)
+{
+ return c->g;
+}
+
+gint RrColorBlue(const RrColor *c)
+{
+ return c->b;
+}
+
+gulong RrColorPixel(const RrColor *c)
+{
+ return c->pixel;
+}
-void color_free(color_rgb *c)
+GC RrColorGC(RrColor *c)
{
- if (c->gc != None)
- XFreeGC(ob_display, c->gc);
- free(c);
+ if (!c->gc)
+ RrColorAllocateGC(c);
+ return c->gc;
}
projects / mikachu / openbox.git / blobdiff