X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=render%2Fcolor.c;h=5e3f2169bad9a1d6ace43eb649ba4cbf4413d058;hb=263833450d3fb1ca0bfffef302c4b204a3133766;hp=83c2aa373f51e1e8ef58339f4c316c90975f67fe;hpb=f8a47de5ec444c452093371e3db16857eb39a490;p=chaz%2Fopenbox diff --git a/render/color.c b/render/color.c index 83c2aa37..5e3f2169 100644 --- a/render/color.c +++ b/render/color.c @@ -1,57 +1,361 @@ -#include -#include +/* -*- 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 +#include +#include + +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 */ - XColor xcol; 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); + } } - return NULL; } -void color_free(color_rgb *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 24: + { + /* reverse the ordering, shifting left 16bit should be the first byte + out of three, etc */ + const guint roff = (16 - RrRedOffset(inst)) / 8; + const guint goff = (16 - RrGreenOffset(inst)) / 8; + const guint boff = (16 - RrBlueOffset(inst)) / 8; + gint outx; + for (y = 0; y < im->height; y++) { + for (x = 0, outx = 0; x < im->width; x++, outx += 3) { + r = (data[x] >> RrDefaultRedOffset) & 0xFF; + g = (data[x] >> RrDefaultGreenOffset) & 0xFF; + b = (data[x] >> RrDefaultBlueOffset) & 0xFF; + p8[outx+roff] = r; + p8[outx+goff] = g; + p8[outx+boff] = b; + } + data += im->width; + p8 += im->bytes_per_line; + } + 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("This image bit depth (%i) is currently unhandled", im->bits_per_pixel); + + } +} + +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; + } + + if (im->byte_order == LSBFirst) + im->byte_order = MSBFirst; + else + im->byte_order = LSBFirst; +} + +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; +} + +GC RrColorGC(RrColor *c) { - if (c->gc != None) - XFreeGC(ob_display, c->gc); - free(c); + if (!c->gc) + RrColorAllocateGC(c); + return c->gc; }