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-rw-r--r--otk/Makefile.am35
-rw-r--r--otk/color.cc223
-rw-r--r--otk/color.hh106
-rw-r--r--otk/color.obin0 -> 214357 bytes
-rw-r--r--otk/font.cc128
-rw-r--r--otk/font.hh82
-rw-r--r--otk/font.obin0 -> 419488 bytes
-rw-r--r--otk/gccache.cc188
-rw-r--r--otk/gccache.hh119
-rw-r--r--otk/gccache.obin0 -> 183688 bytes
-rw-r--r--otk/image.cc1677
-rw-r--r--otk/image.hh144
-rw-r--r--otk/image.obin0 -> 310968 bytes
-rw-r--r--otk/imagecontrol.cc561
-rw-r--r--otk/texture.cc183
-rw-r--r--otk/texture.hh92
16 files changed, 3538 insertions, 0 deletions
diff --git a/otk/Makefile.am b/otk/Makefile.am
new file mode 100644
index 00000000..835874d5
--- /dev/null
+++ b/otk/Makefile.am
@@ -0,0 +1,35 @@
+DEFAULT_MENU=$(pkgdatadir)/menu
+DEFAULT_STYLE=$(pkgdatadir)/styles/mbdtex
+
+CXXFLAGS=`pkg-config --cflags xft` @CXXFLAGS@ \
+-DDEFAULTMENU=\"$(DEFAULT_MENU)\" \
+-DDEFAULTSTYLE=\"$(DEFAULT_STYLE)\" \
+-Dmultibyte\(\)=True
+
+INCLUDES= -I../src
+
+LDFLAGS=`pkg-config --libs xft`
+
+noinst_LIBRARIES=libotk.a
+
+libotk_a_SOURCES= color.cc font.cc gccache.cc image.cc imagecontrol.cc texture.cc
+
+MAINTAINERCLEANFILES= Makefile.in
+
+distclean-local:
+ rm -f *\~ *.orig *.rej .\#*
+
+# local dependencies
+color.o: color.cc color.hh ../src/basedisplay.hh ../src/timer.hh ../src/util.hh
+font.o: font.cc font.hh ../src/screen.hh color.hh texture.hh ../src/util.hh image.hh \
+ ../src/timer.hh ../src/basedisplay.hh ../src/workspace.hh ../src/xatom.hh ../src/blackbox.hh \
+ ../src/configuration.hh gccache.hh
+gccache.o: gccache.cc gccache.hh ../src/basedisplay.hh ../src/timer.hh ../src/util.hh \
+ color.hh
+image.o: image.cc ../src/blackbox.hh ../src/basedisplay.hh ../src/timer.hh ../src/util.hh \
+ ../src/configuration.hh ../src/xatom.hh gccache.hh color.hh image.hh texture.hh
+imagecontrol.o: imagecontrol.cc ../src/blackbox.hh ../src/basedisplay.hh ../src/timer.hh \
+ ../src/util.hh ../src/configuration.hh ../src/xatom.hh color.hh image.hh texture.hh
+texture.o: texture.cc texture.hh color.hh ../src/util.hh ../src/basedisplay.hh \
+ ../src/timer.hh image.hh ../src/screen.hh ../src/workspace.hh ../src/xatom.hh \
+ ../src/blackbox.hh ../src/configuration.hh
diff --git a/otk/color.cc b/otk/color.cc
new file mode 100644
index 00000000..ad30c7a3
--- /dev/null
+++ b/otk/color.cc
@@ -0,0 +1,223 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+extern "C" {
+#include <stdio.h>
+}
+
+#include <assert.h>
+
+#include "color.hh"
+#include "basedisplay.hh"
+
+
+BColor::ColorCache BColor::colorcache;
+bool BColor::cleancache = false;
+
+BColor::BColor(const BaseDisplay * const _display, unsigned int _screen)
+ : allocated(false), r(-1), g(-1), b(-1), p(0), dpy(_display), scrn(_screen)
+{}
+
+BColor::BColor(int _r, int _g, int _b,
+ const BaseDisplay * const _display, unsigned int _screen)
+ : allocated(false), r(_r), g(_g), b(_b), p(0), dpy(_display), scrn(_screen)
+{}
+
+
+BColor::BColor(const std::string &_name,
+ const BaseDisplay * const _display, unsigned int _screen)
+ : allocated(false), r(-1), g(-1), b(-1), p(0), dpy(_display), scrn(_screen),
+ colorname(_name) {
+ parseColorName();
+}
+
+
+BColor::~BColor(void) {
+ deallocate();
+}
+
+
+void BColor::setDisplay(const BaseDisplay * const _display,
+ unsigned int _screen) {
+ if (_display == display() && _screen == screen()) {
+ // nothing to do
+ return;
+ }
+
+ deallocate();
+
+ dpy = _display;
+ scrn = _screen;
+
+ if (! colorname.empty()) {
+ parseColorName();
+ }
+}
+
+
+unsigned long BColor::pixel(void) const {
+ if (! allocated) {
+ // mutable
+ BColor *that = (BColor *) this;
+ that->allocate();
+ }
+
+ return p;
+}
+
+
+void BColor::parseColorName(void) {
+ assert(dpy != 0);
+
+ if (colorname.empty()) {
+ fprintf(stderr, "BColor: empty colorname, cannot parse (using black)\n");
+ setRGB(0, 0, 0);
+ }
+
+ if (scrn == ~(0u))
+ scrn = DefaultScreen(display()->getXDisplay());
+ Colormap colormap = display()->getScreenInfo(scrn)->getColormap();
+
+ // get rgb values from colorname
+ XColor xcol;
+ xcol.red = 0;
+ xcol.green = 0;
+ xcol.blue = 0;
+ xcol.pixel = 0;
+
+ if (! XParseColor(display()->getXDisplay(), colormap,
+ colorname.c_str(), &xcol)) {
+ fprintf(stderr, "BColor::allocate: color parse error: \"%s\"\n",
+ colorname.c_str());
+ setRGB(0, 0, 0);
+ return;
+ }
+
+ setRGB(xcol.red >> 8, xcol.green >> 8, xcol.blue >> 8);
+}
+
+
+void BColor::allocate(void) {
+ assert(dpy != 0);
+
+ if (scrn == ~(0u)) scrn = DefaultScreen(display()->getXDisplay());
+ Colormap colormap = display()->getScreenInfo(scrn)->getColormap();
+
+ if (! isValid()) {
+ if (colorname.empty()) {
+ fprintf(stderr, "BColor: cannot allocate invalid color (using black)\n");
+ setRGB(0, 0, 0);
+ } else {
+ parseColorName();
+ }
+ }
+
+ // see if we have allocated this color before
+ RGB rgb(display(), scrn, r, g, b);
+ ColorCache::iterator it = colorcache.find(rgb);
+ if (it != colorcache.end()) {
+ // found
+ allocated = true;
+ p = (*it).second.p;
+ (*it).second.count++;
+ return;
+ }
+
+ // allocate color from rgb values
+ XColor xcol;
+ xcol.red = r | r << 8;
+ xcol.green = g | g << 8;
+ xcol.blue = b | b << 8;
+ xcol.pixel = 0;
+
+ if (! XAllocColor(display()->getXDisplay(), colormap, &xcol)) {
+ fprintf(stderr, "BColor::allocate: color alloc error: rgb:%x/%x/%x\n",
+ r, g, b);
+ xcol.pixel = 0;
+ }
+
+ p = xcol.pixel;
+ allocated = true;
+
+ colorcache.insert(ColorCacheItem(rgb, PixelRef(p)));
+
+ if (cleancache)
+ doCacheCleanup();
+}
+
+
+void BColor::deallocate(void) {
+ if (! allocated)
+ return;
+
+ assert(dpy != 0);
+
+ ColorCache::iterator it = colorcache.find(RGB(display(), scrn, r, g, b));
+ if (it != colorcache.end()) {
+ if ((*it).second.count >= 1)
+ (*it).second.count--;
+ }
+
+ if (cleancache)
+ doCacheCleanup();
+
+ allocated = false;
+}
+
+
+BColor &BColor::operator=(const BColor &c) {
+ deallocate();
+
+ setRGB(c.r, c.g, c.b);
+ colorname = c.colorname;
+ dpy = c.dpy;
+ scrn = c.scrn;
+ return *this;
+}
+
+
+void BColor::cleanupColorCache(void) {
+ cleancache = true;
+}
+
+
+void BColor::doCacheCleanup(void) {
+ // ### TODO - support multiple displays!
+ ColorCache::iterator it = colorcache.begin();
+ if (it == colorcache.end()) {
+ // nothing to do
+ return;
+ }
+
+ const BaseDisplay* const display = (*it).first.display;
+ unsigned long *pixels = new unsigned long[ colorcache.size() ];
+ unsigned int i, count;
+
+ for (i = 0; i < display->getNumberOfScreens(); i++) {
+ count = 0;
+ it = colorcache.begin();
+
+ while (it != colorcache.end()) {
+ if ((*it).second.count != 0 || (*it).first.screen != i) {
+ ++it;
+ continue;
+ }
+
+ pixels[ count++ ] = (*it).second.p;
+ ColorCache::iterator it2 = it;
+ ++it;
+ colorcache.erase(it2);
+ }
+
+ if (count > 0)
+ XFreeColors(display->getXDisplay(),
+ display->getScreenInfo(i)->getColormap(),
+ pixels, count, 0);
+ }
+
+ delete [] pixels;
+ cleancache = false;
+}
diff --git a/otk/color.hh b/otk/color.hh
new file mode 100644
index 00000000..5f3cb955
--- /dev/null
+++ b/otk/color.hh
@@ -0,0 +1,106 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+#ifndef COLOR_HH
+#define COLOR_HH
+
+extern "C" {
+#include <X11/Xlib.h>
+}
+
+#include <map>
+#include <string>
+
+class BaseDisplay;
+
+class BColor {
+public:
+ BColor(const BaseDisplay * const _display = 0, unsigned int _screen = ~(0u));
+ BColor(int _r, int _g, int _b,
+ const BaseDisplay * const _display, unsigned int _screen = ~(0u));
+ BColor(const std::string &_name,
+ const BaseDisplay * const _display, unsigned int _screen = ~(0u));
+ ~BColor(void);
+
+ inline const std::string &name(void) const { return colorname; }
+
+ inline int red(void) const { return r; }
+ inline int green(void) const { return g; }
+ inline int blue(void) const { return b; }
+ void setRGB(int _r, int _g, int _b) {
+ deallocate();
+ r = _r;
+ g = _g;
+ b = _b;
+ }
+
+ inline const BaseDisplay *display(void) const { return dpy; }
+ inline unsigned int screen(void) const { return scrn; }
+ void setDisplay(const BaseDisplay * const _display,
+ unsigned int _screen = ~(0u));
+
+ inline bool isAllocated(void) const { return allocated; }
+
+ inline bool isValid(void) const { return r != -1 && g != -1 && b != -1; }
+
+ unsigned long pixel(void) const;
+
+ // operators
+ BColor &operator=(const BColor &c);
+ inline bool operator==(const BColor &c) const
+ { return (r == c.r && b == c.b && b == c.b); }
+ inline bool operator!=(const BColor &c) const
+ { return (! operator==(c)); }
+
+ static void cleanupColorCache(void);
+
+private:
+ void parseColorName(void);
+ void allocate(void);
+ void deallocate(void);
+
+ bool allocated;
+ int r, g, b;
+ unsigned long p;
+ const BaseDisplay *dpy;
+ unsigned int scrn;
+ std::string colorname;
+
+ // global color allocator/deallocator
+ struct RGB {
+ const BaseDisplay* const display;
+ const unsigned int screen;
+ const int r, g, b;
+
+ RGB(void) : display(0), screen(~(0u)), r(-1), g(-1), b(-1) { }
+ RGB(const BaseDisplay * const a, const unsigned int b,
+ const int x, const int y, const int z)
+ : display(a), screen(b), r(x), g(y), b(z) {}
+ RGB(const RGB &x)
+ : display(x.display), screen(x.screen), r(x.r), g(x.g), b(x.b) {}
+
+ inline bool operator==(const RGB &x) const {
+ return display == x.display &&
+ screen == x.screen &&
+ r == x.r && g == x.g && b == x.b;
+ }
+
+ inline bool operator<(const RGB &x) const {
+ unsigned long p1, p2;
+ p1 = (screen << 24 | r << 16 | g << 8 | b) & 0x00ffffff;
+ p2 = (x.screen << 24 | x.r << 16 | x.g << 8 | x.b) & 0x00ffffff;
+ return p1 < p2;
+ }
+ };
+ struct PixelRef {
+ const unsigned long p;
+ unsigned int count;
+ inline PixelRef(void) : p(0), count(0) { }
+ inline PixelRef(const unsigned long x) : p(x), count(1) { }
+ };
+ typedef std::map<RGB,PixelRef> ColorCache;
+ typedef ColorCache::value_type ColorCacheItem;
+ static ColorCache colorcache;
+ static bool cleancache;
+ static void doCacheCleanup(void);
+};
+
+#endif // COLOR_HH
diff --git a/otk/color.o b/otk/color.o
new file mode 100644
index 00000000..1fcba15c
--- /dev/null
+++ b/otk/color.o
Binary files differ
diff --git a/otk/font.cc b/otk/font.cc
new file mode 100644
index 00000000..91f8ffb6
--- /dev/null
+++ b/otk/font.cc
@@ -0,0 +1,128 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+extern "C" {
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif // HAVE_STDLIB_H
+}
+
+#include <iostream>
+#include <algorithm>
+
+using std::string;
+using std::cerr;
+using std::endl;
+
+#include "font.hh"
+#include "util.hh"
+#include "gccache.hh"
+#include "color.hh"
+
+string BFont::_fallback_font = "fixed";
+
+BFont::BFont(Display *d, BScreen *screen, const string &family, int size,
+ bool bold, bool italic, bool shadow, unsigned char offset,
+ unsigned char tint, bool antialias) :
+ _display(d),
+ _screen(screen),
+ _family(family),
+ _simplename(False),
+ _size(size),
+ _bold(bold),
+ _italic(italic),
+ _antialias(antialias),
+ _shadow(shadow),
+ _offset(offset),
+ _tint(tint),
+ _xftfont(0) {
+ _valid = False;
+
+ _xftfont = XftFontOpen(_display, _screen->getScreenNumber(),
+ XFT_FAMILY, XftTypeString, _family.c_str(),
+ XFT_SIZE, XftTypeInteger, _size,
+ XFT_WEIGHT, XftTypeInteger, (_bold ?
+ XFT_WEIGHT_BOLD :
+ XFT_WEIGHT_MEDIUM),
+ XFT_SLANT, XftTypeInteger, (_italic ?
+ XFT_SLANT_ITALIC :
+ XFT_SLANT_ROMAN),
+ XFT_ANTIALIAS, XftTypeBool, _antialias,
+ 0);
+ if (! _xftfont)
+ return; // failure
+
+ _valid = True;
+}
+
+
+BFont::~BFont(void) {
+ if (_xftfont)
+ XftFontClose(_display, _xftfont);
+}
+
+
+void BFont::drawString(Drawable d, int x, int y, const BColor &color,
+ const string &string) const {
+ assert(_valid);
+
+ XftDraw *draw = XftDrawCreate(_display, d, _screen->getVisual(),
+ _screen->getColormap());
+ assert(draw);
+
+ if (_shadow) {
+ XftColor c;
+ c.color.red = 0;
+ c.color.green = 0;
+ c.color.blue = 0;
+ c.color.alpha = _tint | _tint << 8; // transparent shadow
+ c.pixel = BlackPixel(_display, _screen->getScreenNumber());
+
+ XftDrawStringUtf8(draw, &c, _xftfont, x + _offset,
+ _xftfont->ascent + y + _offset,
+ (XftChar8 *) string.c_str(),
+ string.size());
+ }
+
+ XftColor c;
+ c.color.red = color.red() | color.red() << 8;
+ c.color.green = color.green() | color.green() << 8;
+ c.color.blue = color.blue() | color.blue() << 8;
+ c.pixel = color.pixel();
+ c.color.alpha = 0xff | 0xff << 8; // no transparency in BColor yet
+
+ XftDrawStringUtf8(draw, &c, _xftfont, x, _xftfont->ascent + y,
+ (XftChar8 *) string.c_str(), string.size());
+
+ XftDrawDestroy(draw);
+ return;
+}
+
+
+unsigned int BFont::measureString(const string &string) const {
+ assert(_valid);
+
+ XGlyphInfo info;
+
+ XftTextExtentsUtf8(_display, _xftfont, (XftChar8 *) string.c_str(),
+ string.size(), &info);
+
+ return info.xOff + (_shadow ? _offset : 0);
+}
+
+
+unsigned int BFont::height(void) const {
+ assert(_valid);
+
+ return _xftfont->height + (_shadow ? _offset : 0);
+}
+
+
+unsigned int BFont::maxCharWidth(void) const {
+ assert(_valid);
+
+ return _xftfont->max_advance_width;
+}
diff --git a/otk/font.hh b/otk/font.hh
new file mode 100644
index 00000000..c070bbff
--- /dev/null
+++ b/otk/font.hh
@@ -0,0 +1,82 @@
+// -*- mode: C++; indent-tabs-mode: nil; -*-
+#ifndef __Font_hh
+#define __Font_hh
+
+extern "C" {
+#include <X11/Xlib.h>
+
+#include <X11/Xft/Xft.h>
+}
+
+#include <assert.h>
+
+#include <string>
+
+class BGCCache;
+class BGCCacheItem;
+class BColor;
+
+#include "screen.hh"
+
+class BFont {
+ /*
+ * static members
+ */
+private:
+ static std::string _fallback_font;
+
+public:
+ // the fallback is only used for X fonts, not for Xft fonts, since it is
+ // assumed that X fonts will be the fallback from Xft.
+ inline static std::string fallbackFont(void) { return _fallback_font; }
+ inline static void setFallbackFont(const std::string &f)
+ { _fallback_font = f; }
+
+ /*
+ * instance members
+ */
+private:
+ Display *_display;
+ BScreen *_screen;
+
+ std::string _family;
+ bool _simplename; // true if not spec'd as a -*-* string
+ int _size;
+ bool _bold;
+ bool _italic;
+
+ bool _antialias;
+ bool _shadow;
+ unsigned char _offset;
+ unsigned char _tint;
+
+ XftFont *_xftfont;
+
+ bool createXftFont(void);
+
+ bool _valid;
+
+public:
+ // loads an Xft font
+ BFont(Display *d, BScreen *screen, const std::string &family, int size,
+ bool bold, bool italic, bool shadow, unsigned char offset,
+ unsigned char tint, bool antialias = True);
+ virtual ~BFont(void);
+
+ inline bool valid(void) const { return _valid; }
+
+ inline std::string family(void) const { assert(_valid); return _family; }
+ inline int size(void) const { assert(_valid); return _size; }
+ inline bool bold(void) const { assert(_valid); return _bold; }
+ inline bool italic(void) const { assert(_valid); return _italic; }
+
+ unsigned int height(void) const;
+ unsigned int maxCharWidth(void) const;
+
+ unsigned int measureString(const std::string &string) const;
+
+ void drawString(Drawable d, int x, int y, const BColor &color,
+ const std::string &string) const;
+};
+
+#endif // __Font_hh
diff --git a/otk/font.o b/otk/font.o
new file mode 100644
index 00000000..1882f7f1
--- /dev/null
+++ b/otk/font.o
Binary files differ
diff --git a/otk/gccache.cc b/otk/gccache.cc
new file mode 100644
index 00000000..2ab37f34
--- /dev/null
+++ b/otk/gccache.cc
@@ -0,0 +1,188 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+extern "C" {
+#include <stdio.h>
+}
+
+#include "gccache.hh"
+#include "basedisplay.hh"
+#include "color.hh"
+#include "util.hh"
+
+
+BGCCacheContext::~BGCCacheContext(void) {
+ if (gc)
+ XFreeGC(display->getXDisplay(), gc);
+}
+
+
+void BGCCacheContext::set(const BColor &_color,
+ const XFontStruct * const _font,
+ const int _function, const int _subwindow,
+ int _linewidth) {
+ XGCValues gcv;
+ pixel = gcv.foreground = _color.pixel();
+ function = gcv.function = _function;
+ subwindow = gcv.subwindow_mode = _subwindow;
+ linewidth = gcv.line_width = _linewidth;
+ gcv.cap_style = CapProjecting;
+
+ unsigned long mask = GCForeground | GCFunction | GCSubwindowMode |
+ GCLineWidth | GCCapStyle;
+
+ if (_font) {
+ fontid = gcv.font = _font->fid;
+ mask |= GCFont;
+ } else {
+ fontid = 0;
+ }
+
+ XChangeGC(display->getXDisplay(), gc, mask, &gcv);
+}
+
+
+void BGCCacheContext::set(const XFontStruct * const _font) {
+ if (! _font) {
+ fontid = 0;
+ return;
+ }
+
+ XGCValues gcv;
+ fontid = gcv.font = _font->fid;
+ XChangeGC(display->getXDisplay(), gc, GCFont, &gcv);
+}
+
+
+BGCCache::BGCCache(const BaseDisplay * const _display,
+ unsigned int screen_count)
+ : display(_display), context_count(128u),
+ cache_size(16u), cache_buckets(8u * screen_count),
+ cache_total_size(cache_size * cache_buckets) {
+
+ contexts = new BGCCacheContext*[context_count];
+ unsigned int i;
+ for (i = 0; i < context_count; i++) {
+ contexts[i] = new BGCCacheContext(display);
+ }
+
+ cache = new BGCCacheItem*[cache_total_size];
+ for (i = 0; i < cache_total_size; ++i) {
+ cache[i] = new BGCCacheItem;
+ }
+}
+
+
+BGCCache::~BGCCache(void) {
+ std::for_each(contexts, contexts + context_count, PointerAssassin());
+ std::for_each(cache, cache + cache_total_size, PointerAssassin());
+ delete [] cache;
+ delete [] contexts;
+}
+
+
+BGCCacheContext *BGCCache::nextContext(unsigned int scr) {
+ Window hd = display->getScreenInfo(scr)->getRootWindow();
+
+ BGCCacheContext *c;
+
+ for (unsigned int i = 0; i < context_count; ++i) {
+ c = contexts[i];
+
+ if (! c->gc) {
+ c->gc = XCreateGC(display->getXDisplay(), hd, 0, 0);
+ c->used = false;
+ c->screen = scr;
+ }
+ if (! c->used && c->screen == scr)
+ return c;
+ }
+
+ fprintf(stderr, "BGCCache: context fault!\n");
+ abort();
+ return (BGCCacheContext*) 0; // not reached
+}
+
+
+void BGCCache::release(BGCCacheContext *ctx) {
+ ctx->used = false;
+}
+
+
+BGCCacheItem *BGCCache::find(const BColor &_color,
+ const XFontStruct * const _font,
+ int _function, int _subwindow, int _linewidth) {
+ const unsigned long pixel = _color.pixel();
+ const unsigned int screen = _color.screen();
+ const int key = _color.red() ^ _color.green() ^ _color.blue();
+ int k = (key % cache_size) * cache_buckets;
+ unsigned int i = 0; // loop variable
+ BGCCacheItem *c = cache[ k ], *prev = 0;
+
+ /*
+ this will either loop cache_buckets times then return/abort or
+ it will stop matching
+ */
+ while (c->ctx &&
+ (c->ctx->pixel != pixel || c->ctx->function != _function ||
+ c->ctx->subwindow != _subwindow || c->ctx->screen != screen ||
+ c->ctx->linewidth != _linewidth)) {
+ if (i < (cache_buckets - 1)) {
+ prev = c;
+ c = cache[ ++k ];
+ ++i;
+ continue;
+ }
+ if (c->count == 0 && c->ctx->screen == screen) {
+ // use this cache item
+ c->ctx->set(_color, _font, _function, _subwindow, _linewidth);
+ c->ctx->used = true;
+ c->count = 1;
+ c->hits = 1;
+ return c;
+ }
+ // cache fault!
+ fprintf(stderr, "BGCCache: cache fault, count: %d, screen: %d, item screen: %d\n", c->count, screen, c->ctx->screen);
+ abort();
+ }
+
+ if (c->ctx) {
+ // reuse existing context
+ if (_font && _font->fid && _font->fid != c->ctx->fontid)
+ c->ctx->set(_font);
+ c->count++;
+ c->hits++;
+ if (prev && c->hits > prev->hits) {
+ cache[ k ] = prev;
+ cache[ k - 1 ] = c;
+ }
+ } else {
+ c->ctx = nextContext(screen);
+ c->ctx->set(_color, _font, _function, _subwindow, _linewidth);
+ c->ctx->used = true;
+ c->count = 1;
+ c->hits = 1;
+ }
+
+ return c;
+}
+
+
+void BGCCache::release(BGCCacheItem *_item) {
+ _item->count--;
+}
+
+
+void BGCCache::purge(void) {
+ for (unsigned int i = 0; i < cache_total_size; ++i) {
+ BGCCacheItem *d = cache[ i ];
+
+ if (d->ctx && d->count == 0) {
+ release(d->ctx);
+ d->ctx = 0;
+ }
+ }
+}
diff --git a/otk/gccache.hh b/otk/gccache.hh
new file mode 100644
index 00000000..499ed8a4
--- /dev/null
+++ b/otk/gccache.hh
@@ -0,0 +1,119 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+#ifndef GCCACHE_HH
+#define GCCACHE_HH
+
+extern "C" {
+#include <X11/Xlib.h>
+}
+
+#include "basedisplay.hh"
+#include "color.hh"
+
+class BGCCacheItem;
+
+class BGCCacheContext {
+public:
+ void set(const BColor &_color, const XFontStruct * const _font,
+ const int _function, const int _subwindow, const int _linewidth);
+ void set(const XFontStruct * const _font);
+
+ ~BGCCacheContext(void);
+
+private:
+ BGCCacheContext(const BaseDisplay * const _display)
+ : display(_display), gc(0), pixel(0ul), fontid(0ul),
+ function(0), subwindow(0), used(false), screen(~(0u)), linewidth(0) {}
+
+ const BaseDisplay *display;
+ GC gc;
+ unsigned long pixel;
+ unsigned long fontid;
+ int function;
+ int subwindow;
+ bool used;
+ unsigned int screen;
+ int linewidth;
+
+ BGCCacheContext(const BGCCacheContext &_nocopy);
+ BGCCacheContext &operator=(const BGCCacheContext &_nocopy);
+
+ friend class BGCCache;
+ friend class BGCCacheItem;
+};
+
+class BGCCacheItem {
+public:
+ inline const GC &gc(void) const { return ctx->gc; }
+
+private:
+ BGCCacheItem(void) : ctx(0), count(0), hits(0), fault(false) { }
+
+ BGCCacheContext *ctx;
+ unsigned int count;
+ unsigned int hits;
+ bool fault;
+
+ BGCCacheItem(const BGCCacheItem &_nocopy);
+ BGCCacheItem &operator=(const BGCCacheItem &_nocopy);
+
+ friend class BGCCache;
+};
+
+class BGCCache {
+public:
+ BGCCache(const BaseDisplay * const _display, unsigned int screen_count);
+ ~BGCCache(void);
+
+ // cleans up the cache
+ void purge(void);
+
+ BGCCacheItem *find(const BColor &_color, const XFontStruct * const _font = 0,
+ int _function = GXcopy, int _subwindow = ClipByChildren,
+ int _linewidth = 0);
+ void release(BGCCacheItem *_item);
+
+private:
+ BGCCacheContext *nextContext(unsigned int _screen);
+ void release(BGCCacheContext *ctx);
+
+ // this is closely modelled after the Qt GC cache, but with some of the
+ // complexity stripped out
+ const BaseDisplay *display;
+
+ const unsigned int context_count;
+ const unsigned int cache_size;
+ const unsigned int cache_buckets;
+ const unsigned int cache_total_size;
+ BGCCacheContext **contexts;
+ BGCCacheItem **cache;
+};
+
+class BPen {
+public:
+ inline BPen(const BColor &_color, const XFontStruct * const _font = 0,
+ int _linewidth = 0, int _function = GXcopy,
+ int _subwindow = ClipByChildren)
+ : color(_color), font(_font), linewidth(_linewidth), function(_function),
+ subwindow(_subwindow), cache(_color.display()->gcCache()), item(0) { }
+
+ inline ~BPen(void) { if (item) cache->release(item); }
+
+ inline const GC &gc(void) const {
+ if (! item) item = cache->find(color, font, function, subwindow,
+ linewidth);
+ return item->gc();
+ }
+
+private:
+ const BColor &color;
+ const XFontStruct *font;
+ int linewidth;
+ int function;
+ int subwindow;
+
+ mutable BGCCache *cache;
+ mutable BGCCacheItem *item;
+};
+
+
+#endif // GCCACHE_HH
diff --git a/otk/gccache.o b/otk/gccache.o
new file mode 100644
index 00000000..28af99de
--- /dev/null
+++ b/otk/gccache.o
Binary files differ
diff --git a/otk/image.cc b/otk/image.cc
new file mode 100644
index 00000000..21e9d690
--- /dev/null
+++ b/otk/image.cc
@@ -0,0 +1,1677 @@
+// -*- mode: C++; indent-tabs-mode: nil; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+#ifdef HAVE_STDIO_H
+# include <stdio.h>
+#endif // HAVE_STDIO_H
+
+#include <algorithm>
+using std::max;
+using std::min;
+
+#include "blackbox.hh"
+#include "basedisplay.hh"
+#include "gccache.hh"
+#include "image.hh"
+#include "texture.hh"
+
+
+BImage::BImage(BImageControl *c, int w, int h) {
+ control = c;
+
+ width = (w > 0) ? w : 1;
+ height = (h > 0) ? h : 1;
+
+ red = new unsigned char[width * height];
+ green = new unsigned char[width * height];
+ blue = new unsigned char[width * height];
+
+ xtable = ytable = (unsigned int *) 0;
+
+ cpc = control->getColorsPerChannel();
+ cpccpc = cpc * cpc;
+
+ control->getColorTables(&red_table, &green_table, &blue_table,
+ &red_offset, &green_offset, &blue_offset,
+ &red_bits, &green_bits, &blue_bits);
+
+ if (control->getVisual()->c_class != TrueColor)
+ control->getXColorTable(&colors, &ncolors);
+}
+
+
+BImage::~BImage(void) {
+ delete [] red;
+ delete [] green;
+ delete [] blue;
+}
+
+
+Pixmap BImage::render(const BTexture &texture) {
+ if (texture.texture() & BTexture::Parent_Relative)
+ return ParentRelative;
+ else if (texture.texture() & BTexture::Solid)
+ return render_solid(texture);
+ else if (texture.texture() & BTexture::Gradient)
+ return render_gradient(texture);
+ return None;
+}
+
+
+Pixmap BImage::render_solid(const BTexture &texture) {
+ Pixmap pixmap = XCreatePixmap(control->getBaseDisplay()->getXDisplay(),
+ control->getDrawable(), width,
+ height, control->getDepth());
+ if (pixmap == None) {
+ fprintf(stderr, "BImage::render_solid: error creating pixmap\n");
+ return None;
+ }
+
+ Display *display = control->getBaseDisplay()->getXDisplay();
+
+ BPen pen(texture.color());
+ BPen penlight(texture.lightColor());
+ BPen penshadow(texture.shadowColor());
+
+ XFillRectangle(display, pixmap, pen.gc(), 0, 0, width, height);
+
+ if (texture.texture() & BTexture::Interlaced) {
+ BPen peninterlace(texture.colorTo());
+ for (unsigned int i = 0; i < height; i += 2)
+ XDrawLine(display, pixmap, peninterlace.gc(), 0, i, width, i);
+ }
+
+ int left = 0, top = 0, right = width - 1, bottom = height - 1;
+
+ if (texture.texture() & BTexture::Border) {
+ BPen penborder(texture.borderColor());
+ XDrawRectangle(display, pixmap, penborder.gc(),
+ left, top, right, bottom);
+ }
+
+ if (texture.texture() & BTexture::Bevel1) {
+ if (texture.texture() & BTexture::Raised) {
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left, bottom, right, bottom);
+ XDrawLine(display, pixmap, penshadow.gc(),
+ right, bottom, right, top);
+
+ XDrawLine(display, pixmap, penlight.gc(),
+ left, top, right, top);
+ XDrawLine(display, pixmap, penlight.gc(),
+ left, bottom, left, top);
+ } else if (texture.texture() & BTexture::Sunken) {
+ XDrawLine(display, pixmap, penlight.gc(),
+ left, bottom, right, bottom);
+ XDrawLine(display, pixmap, penlight.gc(),
+ right, bottom, right, top);
+
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left, top, right, top);
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left, bottom, left, top);
+ }
+ } else if (texture.texture() & BTexture::Bevel2) {
+ if (texture.texture() & BTexture::Raised) {
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left + 1, bottom - 2, right - 2, bottom - 2);
+ XDrawLine(display, pixmap, penshadow.gc(),
+ right - 2, bottom - 2, right - 2, top + 1);
+
+ XDrawLine(display, pixmap, penlight.gc(),
+ left + 1, top + 1, right - 2, top + 1);
+ XDrawLine(display, pixmap, penlight.gc(),
+ left + 1, bottom - 2, left + 1, top + 1);
+ } else if (texture.texture() & BTexture::Sunken) {
+ XDrawLine(display, pixmap, penlight.gc(),
+ left + 1, bottom - 2, right - 2, bottom - 2);
+ XDrawLine(display, pixmap, penlight.gc(),
+ right - 2, bottom - 2, right - 2, top + 1);
+
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left + 1, top + 1, right - 2, top + 1);
+ XDrawLine(display, pixmap, penshadow.gc(),
+ left + 1, bottom - 2, left + 1, top + 1);
+ }
+ }
+
+ return pixmap;
+}
+
+
+Pixmap BImage::render_gradient(const BTexture &texture) {
+ bool inverted = False;
+
+ interlaced = texture.texture() & BTexture::Interlaced;
+
+ if (texture.texture() & BTexture::Sunken) {
+ from = texture.colorTo();
+ to = texture.color();
+
+ if (! (texture.texture() & BTexture::Invert)) inverted = True;
+ } else {
+ from = texture.color();
+ to = texture.colorTo();
+
+ if (texture.texture() & BTexture::Invert) inverted = True;
+ }
+
+ control->getGradientBuffers(width, height, &xtable, &ytable);
+
+ if (texture.texture() & BTexture::Diagonal) dgradient();
+ else if (texture.texture() & BTexture::Elliptic) egradient();
+ else if (texture.texture() & BTexture::Horizontal) hgradient();
+ else if (texture.texture() & BTexture::Pyramid) pgradient();
+ else if (texture.texture() & BTexture::Rectangle) rgradient();
+ else if (texture.texture() & BTexture::Vertical) vgradient();
+ else if (texture.texture() & BTexture::CrossDiagonal) cdgradient();
+ else if (texture.texture() & BTexture::PipeCross) pcgradient();
+
+ if (texture.texture() & BTexture::Bevel1) bevel1();
+ else if (texture.texture() & BTexture::Bevel2) bevel2();
+
+ if (texture.texture() & BTexture::Border) border(texture);
+
+ if (inverted) invert();
+
+ return renderPixmap();
+
+}
+
+
+static const unsigned char dither4[4][4] = {
+ {0, 4, 1, 5},
+ {6, 2, 7, 3},
+ {1, 5, 0, 4},
+ {7, 3, 6, 2}
+};
+
+
+/*
+ * Helper function for TrueColorDither and renderXImage
+ *
+ * This handles the proper setting of the image data based on the image depth
+ * and the machine's byte ordering
+ */
+static inline
+void assignPixelData(unsigned int bit_depth, unsigned char **data,
+ unsigned long pixel) {
+ unsigned char *pixel_data = *data;
+ switch (bit_depth) {
+ case 8: // 8bpp
+ *pixel_data++ = pixel;
+ break;
+
+ case 16: // 16bpp LSB
+ *pixel_data++ = pixel;
+ *pixel_data++ = pixel >> 8;
+ break;
+
+ case 17: // 16bpp MSB
+ *pixel_data++ = pixel >> 8;
+ *pixel_data++ = pixel;
+ break;
+
+ case 24: // 24bpp LSB
+ *pixel_data++ = pixel;
+ *pixel_data++ = pixel >> 8;
+ *pixel_data++ = pixel >> 16;
+ break;
+
+ case 25: // 24bpp MSB
+ *pixel_data++ = pixel >> 16;
+ *pixel_data++ = pixel >> 8;
+ *pixel_data++ = pixel;
+ break;
+
+ case 32: // 32bpp LSB
+ *pixel_data++ = pixel;
+ *pixel_data++ = pixel >> 8;
+ *pixel_data++ = pixel >> 16;
+ *pixel_data++ = pixel >> 24;
+ break;
+
+ case 33: // 32bpp MSB
+ *pixel_data++ = pixel >> 24;
+ *pixel_data++ = pixel >> 16;
+ *pixel_data++ = pixel >> 8;
+ *pixel_data++ = pixel;
+ break;
+ }
+ *data = pixel_data; // assign back so we don't lose our place
+}
+
+
+// algorithm: ordered dithering... many many thanks to rasterman
+// (raster@rasterman.com) for telling me about this... portions of this
+// code is based off of his code in Imlib
+void BImage::TrueColorDither(unsigned int bit_depth, int bytes_per_line,
+ unsigned char *pixel_data) {
+ unsigned int x, y, dithx, dithy, r, g, b, er, eg, eb, offset;
+ unsigned char *ppixel_data = pixel_data;
+ unsigned long pixel;
+
+ for (y = 0, offset = 0; y < height; y++) {
+ dithy = y & 0x3;
+
+ for (x = 0; x < width; x++, offset++) {
+ dithx = x & 0x3;
+ r = red[offset];
+ g = green[offset];
+ b = blue[offset];
+
+ er = r & (red_bits - 1);
+ eg = g & (green_bits - 1);
+ eb = b & (blue_bits - 1);
+
+ r = red_table[r];
+ g = green_table[g];
+ b = blue_table[b];
+
+ if ((dither4[dithy][dithx] < er) && (r < red_table[255])) r++;
+ if ((dither4[dithy][dithx] < eg) && (g < green_table[255])) g++;
+ if ((dither4[dithy][dithx] < eb) && (b < blue_table[255])) b++;
+
+ pixel = (r << red_offset) | (g << green_offset) | (b << blue_offset);
+ assignPixelData(bit_depth, &pixel_data, pixel);
+ }
+
+ pixel_data = (ppixel_data += bytes_per_line);
+ }
+}
+
+#ifdef ORDEREDPSEUDO
+const static unsigned char dither8[8][8] = {
+ { 0, 32, 8, 40, 2, 34, 10, 42},
+ { 48, 16, 56, 24, 50, 18, 58, 26},
+ { 12, 44, 4, 36, 14, 46, 6, 38},
+ { 60, 28, 52, 20, 62, 30, 54, 22},
+ { 3, 35, 11, 43, 1, 33, 9, 41},
+ { 51, 19, 59, 27, 49, 17, 57, 25},
+ { 15, 47, 7, 39, 13, 45, 5, 37},
+ { 63, 31, 55, 23, 61, 29, 53, 21}
+};
+
+void BImage::OrderedPseudoColorDither(int bytes_per_line,
+ unsigned char *pixel_data) {
+ unsigned int x, y, dithx, dithy, r, g, b, er, eg, eb, offset;
+ unsigned long pixel;
+ unsigned char *ppixel_data = pixel_data;
+
+ for (y = 0, offset = 0; y < height; y++) {
+ dithy = y & 7;
+
+ for (x = 0; x < width; x++, offset++) {
+ dithx = x & 7;
+
+ r = red[offset];
+ g = green[offset];
+ b = blue[offset];
+
+ er = r & (red_bits - 1);
+ eg = g & (green_bits - 1);
+ eb = b & (blue_bits - 1);
+
+ r = red_table[r];
+ g = green_table[g];
+ b = blue_table[b];
+
+ if ((dither8[dithy][dithx] < er) && (r < red_table[255])) r++;
+ if ((dither8[dithy][dithx] < eg) && (g < green_table[255])) g++;
+ if ((dither8[dithy][dithx] < eb) && (b < blue_table[255])) b++;
+
+ pixel = (r * cpccpc) + (g * cpc) + b;
+ *(pixel_data++) = colors[pixel].pixel;
+ }
+
+ pixel_data = (ppixel_data += bytes_per_line);
+ }
+}
+#endif
+
+void BImage::PseudoColorDither(int bytes_per_line, unsigned char *pixel_data) {
+ short *terr,
+ *rerr = new short[width + 2],
+ *gerr = new short[width + 2],
+ *berr = new short[width + 2],
+ *nrerr = new short[width + 2],
+ *ngerr = new short[width + 2],
+ *nberr = new short[width + 2];
+
+ int rr, gg, bb, rer, ger, ber;
+ int dd = 255 / control->getColorsPerChannel();
+ unsigned int x, y, r, g, b, offset;
+ unsigned long pixel;
+ unsigned char *ppixel_data = pixel_data;
+
+ for (x = 0; x < width; x++) {
+ *(rerr + x) = *(red + x);
+ *(gerr + x) = *(green + x);
+ *(berr + x) = *(blue + x);
+ }
+
+ *(rerr + x) = *(gerr + x) = *(berr + x) = 0;
+
+ for (y = 0, offset = 0; y < height; y++) {
+ if (y < (height - 1)) {
+ int i = offset + width;
+ for (x = 0; x < width; x++, i++) {
+ *(nrerr + x) = *(red + i);
+ *(ngerr + x) = *(green + i);
+ *(nberr + x) = *(blue + i);
+ }
+
+ *(nrerr + x) = *(red + (--i));
+ *(ngerr + x) = *(green + i);
+ *(nberr + x) = *(blue + i);
+ }
+
+ for (x = 0; x < width; x++) {
+ rr = rerr[x];
+ gg = gerr[x];
+ bb = berr[x];
+
+ if (rr > 255) rr = 255; else if (rr < 0) rr = 0;
+ if (gg > 255) gg = 255; else if (gg < 0) gg = 0;
+ if (bb > 255) bb = 255; else if (bb < 0) bb = 0;
+
+ r = red_table[rr];
+ g = green_table[gg];
+ b = blue_table[bb];
+
+ rer = rerr[x] - r*dd;
+ ger = gerr[x] - g*dd;
+ ber = berr[x] - b*dd;
+
+ pixel = (r * cpccpc) + (g * cpc) + b;
+ *pixel_data++ = colors[pixel].pixel;
+
+ r = rer >> 1;
+ g = ger >> 1;
+ b = ber >> 1;
+ rerr[x+1] += r;
+ gerr[x+1] += g;
+ berr[x+1] += b;
+ nrerr[x] += r;
+ ngerr[x] += g;
+ nberr[x] += b;
+ }
+
+ offset += width;
+
+ pixel_data = (ppixel_data += bytes_per_line);
+
+ terr = rerr;
+ rerr = nrerr;
+ nrerr = terr;
+
+ terr = gerr;
+ gerr = ngerr;
+ ngerr = terr;
+
+ terr = berr;
+ berr = nberr;
+ nberr = terr;
+ }
+
+ delete [] rerr;
+ delete [] gerr;
+ delete [] berr;
+ delete [] nrerr;
+ delete [] ngerr;
+ delete [] nberr;
+}
+
+XImage *BImage::renderXImage(void) {
+ XImage *image =
+ XCreateImage(control->getBaseDisplay()->getXDisplay(),
+ control->getVisual(), control->getDepth(), ZPixmap, 0, 0,
+ width, height, 32, 0);
+
+ if (! image) {
+ fprintf(stderr, "BImage::renderXImage: error creating XImage\n");
+ return (XImage *) 0;
+ }
+
+ // insurance policy
+ image->data = (char *) 0;
+
+ unsigned char *d = new unsigned char[image->bytes_per_line * (height + 1)];
+
+ unsigned int o = image->bits_per_pixel +
+ ((image->byte_order == MSBFirst) ? 1 : 0);
+
+ bool unsupported = False;
+
+ if (control->doDither() && width > 1 && height > 1) {
+ switch (control->getVisual()->c_class) {
+ case TrueColor:
+ TrueColorDither(o, image->bytes_per_line, d);
+ break;
+
+ case StaticColor:
+ case PseudoColor: {
+#ifdef ORDEREDPSEUDO
+ OrderedPseudoColorDither(image->bytes_per_line, d);
+#else
+ PseudoColorDither(image->bytes_per_line, d);
+#endif
+ break;
+ }
+
+ default:
+ unsupported = True;
+ }
+ } else {
+ unsigned int x, y, r, g, b, offset;
+ unsigned char *pixel_data = d, *ppixel_data = d;
+ unsigned long pixel;
+
+ switch (control->getVisual()->c_class) {
+ case StaticColor:
+ case PseudoColor:
+ for (y = 0, offset = 0; y < height; ++y) {
+ for (x = 0; x < width; ++x, ++offset) {
+ r = red_table[red[offset]];
+ g = green_table[green[offset]];
+ b = blue_table[blue[offset]];
+
+ pixel = (r * cpccpc) + (g * cpc) + b;
+ *pixel_data++ = colors[pixel].pixel;
+ }
+
+ pixel_data = (ppixel_data += image->bytes_per_line);
+ }
+
+ break;
+
+ case TrueColor:
+ for (y = 0, offset = 0; y < height; y++) {
+ for (x = 0; x < width; x++, offset++) {
+ r = red_table[red[offset]];
+ g = green_table[green[offset]];
+ b = blue_table[blue[offset]];
+
+ pixel = (r << red_offset) | (g << green_offset) | (b << blue_offset);
+ assignPixelData(o, &pixel_data, pixel);
+ }
+
+ pixel_data = (ppixel_data += image->bytes_per_line);
+ }
+
+ break;
+
+ case StaticGray:
+ case GrayScale:
+ for (y = 0, offset = 0; y < height; y++) {
+ for (x = 0; x < width; x++, offset++) {
+ r = *(red_table + *(red + offset));
+ g = *(green_table + *(green + offset));
+ b = *(blue_table + *(blue + offset));
+
+ g = ((r * 30) + (g * 59) + (b * 11)) / 100;
+ *pixel_data++ = colors[g].pixel;
+ }
+
+ pixel_data = (ppixel_data += image->bytes_per_line);
+ }
+
+ break;
+
+ default:
+ unsupported = True;
+ }
+ }
+
+ if (unsupported) {
+ fprintf(stderr, "BImage::renderXImage: unsupported visual\n");
+ delete [] d;
+ XDestroyImage(image);
+ return (XImage *) 0;
+ }
+
+ image->data = (char *) d;
+
+ return image;
+}
+
+
+Pixmap BImage::renderPixmap(void) {
+ Pixmap pixmap =
+ XCreatePixmap(control->getBaseDisplay()->getXDisplay(),
+ control->getDrawable(), width, height, control->getDepth());
+
+ if (pixmap == None) {
+ fprintf(stderr, "BImage::renderPixmap: error creating pixmap\n");
+ return None;
+ }
+
+ XImage *image = renderXImage();
+
+ if (! image) {
+ XFreePixmap(control->getBaseDisplay()->getXDisplay(), pixmap);
+ return None;
+ }
+
+ if (! image->data) {
+ XDestroyImage(image);
+ XFreePixmap(control->getBaseDisplay()->getXDisplay(), pixmap);
+ return None;
+ }
+
+ XPutImage(control->getBaseDisplay()->getXDisplay(), pixmap,
+ DefaultGC(control->getBaseDisplay()->getXDisplay(),
+ control->getScreenInfo()->getScreenNumber()),
+ image, 0, 0, 0, 0, width, height);
+
+ if (image->data) {
+ delete [] image->data;
+ image->data = NULL;
+ }
+
+ XDestroyImage(image);
+
+ return pixmap;
+}
+
+
+void BImage::bevel1(void) {
+ if (width > 2 && height > 2) {
+ unsigned char *pr = red, *pg = green, *pb = blue;
+
+ register unsigned char r, g, b, rr ,gg ,bb;
+ register unsigned int w = width, h = height - 1, wh = w * h;
+
+ while (--w) {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ r = *(pr + wh);
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *(pg + wh);
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *(pb + wh);
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *((pr++) + wh) = rr;
+ *((pg++) + wh) = gg;
+ *((pb++) + wh) = bb;
+ }
+
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ r = *(pr + wh);
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *(pg + wh);
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *(pb + wh);
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *(pr + wh) = rr;
+ *(pg + wh) = gg;
+ *(pb + wh) = bb;
+
+ pr = red + width;
+ pg = green + width;
+ pb = blue + width;
+
+ while (--h) {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ pr += width - 1;
+ pg += width - 1;
+ pb += width - 1;
+
+ r = *pr;
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *pg;
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *pb;
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *(pr++) = rr;
+ *(pg++) = gg;
+ *(pb++) = bb;
+ }
+
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ pr += width - 1;
+ pg += width - 1;
+ pb += width - 1;
+
+ r = *pr;
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *pg;
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *pb;
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+ }
+}
+
+
+void BImage::bevel2(void) {
+ if (width > 4 && height > 4) {
+ unsigned char r, g, b, rr ,gg ,bb, *pr = red + width + 1,
+ *pg = green + width + 1, *pb = blue + width + 1;
+ unsigned int w = width - 2, h = height - 1, wh = width * (height - 3);
+
+ while (--w) {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *pr = rr;
+ *pg = gg;
+ *pb = bb;
+
+ r = *(pr + wh);
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *(pg + wh);
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *(pb + wh);
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *((pr++) + wh) = rr;
+ *((pg++) + wh) = gg;
+ *((pb++) + wh) = bb;
+ }
+
+ pr = red + width;
+ pg = green + width;
+ pb = blue + width;
+
+ while (--h) {
+ r = *pr;
+ rr = r + (r >> 1);
+ if (rr < r) rr = ~0;
+ g = *pg;
+ gg = g + (g >> 1);
+ if (gg < g) gg = ~0;
+ b = *pb;
+ bb = b + (b >> 1);
+ if (bb < b) bb = ~0;
+
+ *(++pr) = rr;
+ *(++pg) = gg;
+ *(++pb) = bb;
+
+ pr += width - 3;
+ pg += width - 3;
+ pb += width - 3;
+
+ r = *pr;
+ rr = (r >> 2) + (r >> 1);
+ if (rr > r) rr = 0;
+ g = *pg;
+ gg = (g >> 2) + (g >> 1);
+ if (gg > g) gg = 0;
+ b = *pb;
+ bb = (b >> 2) + (b >> 1);
+ if (bb > b) bb = 0;
+
+ *(pr++) = rr;
+ *(pg++) = gg;
+ *(pb++) = bb;
+
+ pr++; pg++; pb++;
+ }
+ }
+}
+
+
+void BImage::border(const BTexture &texture) {
+ if (width < 2 || height < 2) return;
+
+ register unsigned int i;
+ int r = texture.borderColor().red(),
+ g = texture.borderColor().green(),
+ b = texture.borderColor().blue();
+
+ unsigned char *pr, *pg, *pb;
+
+ // top line
+ pr = red;
+ pg = green;
+ pb = blue;
+ for (i = 0; i < width; ++i) {
+ *pr++ = r;
+ *pg++ = g;
+ *pb++ = b;
+ }
+
+ if (height > 2) {
+ // left and right lines (pr,pg,pb are already lined up)
+ for (i = 1; i < height - 1; ++i) {
+ *pr = r;
+ *pg = g;
+ *pb = b;
+ pr += width - 1;
+ pg += width - 1;
+ pb += width - 1;
+ *pr++ = r;
+ *pg++ = g;
+ *pb++ = b;
+ }
+ }
+
+ // bottom line (pr,pg,pb are already lined up)
+ for (i = 0; i < width; ++i) {
+ *pr++ = r;
+ *pg++ = g;
+ *pb++ = b;
+ }
+}
+
+
+void BImage::invert(void) {
+ register unsigned int i, j, wh = (width * height) - 1;
+ unsigned char tmp;
+
+ for (i = 0, j = wh; j > i; j--, i++) {
+ tmp = *(red + j);
+ *(red + j) = *(red + i);
+ *(red + i) = tmp;
+
+ tmp = *(green + j);
+ *(green + j) = *(green + i);
+ *(green + i) = tmp;
+
+ tmp = *(blue + j);
+ *(blue + j) = *(blue + i);
+ *(blue + i) = tmp;
+ }
+}
+
+
+void BImage::dgradient(void) {
+ // diagonal gradient code was written by Mike Cole <mike@mydot.com>
+ // modified for interlacing by Brad Hughes
+
+ float drx, dgx, dbx, dry, dgy, dby, yr = 0.0, yg = 0.0, yb = 0.0,
+ xr = (float) from.red(),
+ xg = (float) from.green(),
+ xb = (float) from.blue();
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int w = width * 2, h = height * 2, *xt = xtable, *yt = ytable;
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ // Create X table
+ drx /= w;
+ dgx /= w;
+ dbx /= w;
+
+ for (x = 0; x < width; x++) {
+ *(xt++) = (unsigned char) (xr);
+ *(xt++) = (unsigned char) (xg);
+ *(xt++) = (unsigned char) (xb);
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ // Create Y table
+ dry /= h;
+ dgy /= h;
+ dby /= h;
+
+ for (y = 0; y < height; y++) {
+ *(yt++) = ((unsigned char) yr);
+ *(yt++) = ((unsigned char) yg);
+ *(yt++) = ((unsigned char) yb);
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal dgradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = *(xt++) + *(yt);
+ *(pg++) = *(xt++) + *(yt + 1);
+ *(pb++) = *(xt++) + *(yt + 2);
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = *(xt++) + *(yt);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = *(xt++) + *(yt + 1);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = *(xt++) + *(yt + 2);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = *(xt++) + *(yt);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = *(xt++) + *(yt + 1);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = *(xt++) + *(yt + 2);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
+
+
+void BImage::hgradient(void) {
+ float drx, dgx, dbx,
+ xr = (float) from.red(),
+ xg = (float) from.green(),
+ xb = (float) from.blue();
+ unsigned char *pr = red, *pg = green, *pb = blue;
+
+ register unsigned int x, y;
+
+ drx = (float) (to.red() - from.red());
+ dgx = (float) (to.green() - from.green());
+ dbx = (float) (to.blue() - from.blue());
+
+ drx /= width;
+ dgx /= width;
+ dbx /= width;
+
+ if (interlaced && height > 2) {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (x = 0; x < width; x++, pr++, pg++, pb++) {
+ channel = (unsigned char) xr;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *pr = channel2;
+
+ channel = (unsigned char) xg;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *pg = channel2;
+
+ channel = (unsigned char) xb;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *pb = channel2;
+
+
+ channel = (unsigned char) xr;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr + width) = channel2;
+
+ channel = (unsigned char) xg;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg + width) = channel2;
+
+ channel = (unsigned char) xb;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb + width) = channel2;
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ pr += width;
+ pg += width;
+ pb += width;
+
+ int offset;
+
+ for (y = 2; y < height; y++, pr += width, pg += width, pb += width) {
+ if (y & 1) offset = width; else offset = 0;
+
+ memcpy(pr, (red + offset), width);
+ memcpy(pg, (green + offset), width);
+ memcpy(pb, (blue + offset), width);
+ }
+ } else {
+ // normal hgradient
+ for (x = 0; x < width; x++) {
+ *(pr++) = (unsigned char) (xr);
+ *(pg++) = (unsigned char) (xg);
+ *(pb++) = (unsigned char) (xb);
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ for (y = 1; y < height; y++, pr += width, pg += width, pb += width) {
+ memcpy(pr, red, width);
+ memcpy(pg, green, width);
+ memcpy(pb, blue, width);
+ }
+ }
+}
+
+
+void BImage::vgradient(void) {
+ float dry, dgy, dby,
+ yr = (float) from.red(),
+ yg = (float) from.green(),
+ yb = (float) from.blue();
+ unsigned char *pr = red, *pg = green, *pb = blue;
+
+ register unsigned int y;
+
+ dry = (float) (to.red() - from.red());
+ dgy = (float) (to.green() - from.green());
+ dby = (float) (to.blue() - from.blue());
+
+ dry /= height;
+ dgy /= height;
+ dby /= height;
+
+ if (interlaced) {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (y = 0; y < height; y++, pr += width, pg += width, pb += width) {
+ if (y & 1) {
+ channel = (unsigned char) yr;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ memset(pr, channel2, width);
+
+ channel = (unsigned char) yg;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ memset(pg, channel2, width);
+
+ channel = (unsigned char) yb;
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ memset(pb, channel2, width);
+ } else {
+ channel = (unsigned char) yr;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ memset(pr, channel2, width);
+
+ channel = (unsigned char) yg;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ memset(pg, channel2, width);
+
+ channel = (unsigned char) yb;
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ memset(pb, channel2, width);
+ }
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+ } else {
+ // normal vgradient
+ for (y = 0; y < height; y++, pr += width, pg += width, pb += width) {
+ memset(pr, (unsigned char) yr, width);
+ memset(pg, (unsigned char) yg, width);
+ memset(pb, (unsigned char) yb, width);
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+ }
+}
+
+
+void BImage::pgradient(void) {
+ // pyramid gradient - based on original dgradient, written by
+ // Mosfet (mosfet@kde.org)
+ // adapted from kde sources for Blackbox by Brad Hughes
+
+ float yr, yg, yb, drx, dgx, dbx, dry, dgy, dby,
+ xr, xg, xb;
+ int rsign, gsign, bsign;
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int tr = to.red(), tg = to.green(), tb = to.blue(),
+ *xt = xtable, *yt = ytable;
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ rsign = (drx < 0) ? -1 : 1;
+ gsign = (dgx < 0) ? -1 : 1;
+ bsign = (dbx < 0) ? -1 : 1;
+
+ xr = yr = (drx / 2);
+ xg = yg = (dgx / 2);
+ xb = yb = (dbx / 2);
+
+ // Create X table
+ drx /= width;
+ dgx /= width;
+ dbx /= width;
+
+ for (x = 0; x < width; x++) {
+ *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr);
+ *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg);
+ *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb);
+
+ xr -= drx;
+ xg -= dgx;
+ xb -= dbx;
+ }
+
+ // Create Y table
+ dry /= height;
+ dgy /= height;
+ dby /= height;
+
+ for (y = 0; y < height; y++) {
+ *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr));
+ *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg));
+ *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb));
+
+ yr -= dry;
+ yg -= dgy;
+ yb -= dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal pgradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = (unsigned char) (tr - (rsign * (*(xt++) + *(yt))));
+ *(pg++) = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1))));
+ *(pb++) = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2))));
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = (unsigned char) (tr - (rsign * (*(xt++) + *(yt))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = (unsigned char) (tr - (rsign * (*(xt++) + *(yt))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
+
+
+void BImage::rgradient(void) {
+ // rectangle gradient - based on original dgradient, written by
+ // Mosfet (mosfet@kde.org)
+ // adapted from kde sources for Blackbox by Brad Hughes
+
+ float drx, dgx, dbx, dry, dgy, dby, xr, xg, xb, yr, yg, yb;
+ int rsign, gsign, bsign;
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int tr = to.red(), tg = to.green(), tb = to.blue(),
+ *xt = xtable, *yt = ytable;
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ rsign = (drx < 0) ? -2 : 2;
+ gsign = (dgx < 0) ? -2 : 2;
+ bsign = (dbx < 0) ? -2 : 2;
+
+ xr = yr = (drx / 2);
+ xg = yg = (dgx / 2);
+ xb = yb = (dbx / 2);
+
+ // Create X table
+ drx /= width;
+ dgx /= width;
+ dbx /= width;
+
+ for (x = 0; x < width; x++) {
+ *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr);
+ *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg);
+ *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb);
+
+ xr -= drx;
+ xg -= dgx;
+ xb -= dbx;
+ }
+
+ // Create Y table
+ dry /= height;
+ dgy /= height;
+ dby /= height;
+
+ for (y = 0; y < height; y++) {
+ *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr));
+ *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg));
+ *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb));
+
+ yr -= dry;
+ yg -= dgy;
+ yb -= dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal rgradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = (unsigned char) (tr - (rsign * max(*(xt++), *(yt))));
+ *(pg++) = (unsigned char) (tg - (gsign * max(*(xt++), *(yt + 1))));
+ *(pb++) = (unsigned char) (tb - (bsign * max(*(xt++), *(yt + 2))));
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = (unsigned char) (tr - (rsign * max(*(xt++), *(yt))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (gsign * max(*(xt++), *(yt + 1))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (bsign * max(*(xt++), *(yt + 2))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = (unsigned char) (tr - (rsign * max(*(xt++), *(yt))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (gsign * max(*(xt++), *(yt + 1))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (bsign * max(*(xt++), *(yt + 2))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
+
+
+void BImage::egradient(void) {
+ // elliptic gradient - based on original dgradient, written by
+ // Mosfet (mosfet@kde.org)
+ // adapted from kde sources for Blackbox by Brad Hughes
+
+ float drx, dgx, dbx, dry, dgy, dby, yr, yg, yb, xr, xg, xb;
+ int rsign, gsign, bsign;
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int *xt = xtable, *yt = ytable,
+ tr = (unsigned long) to.red(),
+ tg = (unsigned long) to.green(),
+ tb = (unsigned long) to.blue();
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ rsign = (drx < 0) ? -1 : 1;
+ gsign = (dgx < 0) ? -1 : 1;
+ bsign = (dbx < 0) ? -1 : 1;
+
+ xr = yr = (drx / 2);
+ xg = yg = (dgx / 2);
+ xb = yb = (dbx / 2);
+
+ // Create X table
+ drx /= width;
+ dgx /= width;
+ dbx /= width;
+
+ for (x = 0; x < width; x++) {
+ *(xt++) = (unsigned long) (xr * xr);
+ *(xt++) = (unsigned long) (xg * xg);
+ *(xt++) = (unsigned long) (xb * xb);
+
+ xr -= drx;
+ xg -= dgx;
+ xb -= dbx;
+ }
+
+ // Create Y table
+ dry /= height;
+ dgy /= height;
+ dby /= height;
+
+ for (y = 0; y < height; y++) {
+ *(yt++) = (unsigned long) (yr * yr);
+ *(yt++) = (unsigned long) (yg * yg);
+ *(yt++) = (unsigned long) (yb * yb);
+
+ yr -= dry;
+ yg -= dgy;
+ yb -= dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal egradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = (unsigned char)
+ (tr - (rsign * control->getSqrt(*(xt++) + *(yt))));
+ *(pg++) = (unsigned char)
+ (tg - (gsign * control->getSqrt(*(xt++) + *(yt + 1))));
+ *(pb++) = (unsigned char)
+ (tb - (bsign * control->getSqrt(*(xt++) + *(yt + 2))));
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = (unsigned char)
+ (tr - (rsign * control->getSqrt(*(xt++) + *(yt))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char)
+ (tg - (gsign * control->getSqrt(*(xt++) + *(yt + 1))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char)
+ (tb - (bsign * control->getSqrt(*(xt++) + *(yt + 2))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = (unsigned char)
+ (tr - (rsign * control->getSqrt(*(xt++) + *(yt))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char)
+ (tg - (gsign * control->getSqrt(*(xt++) + *(yt + 1))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char)
+ (tb - (bsign * control->getSqrt(*(xt++) + *(yt + 2))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
+
+
+void BImage::pcgradient(void) {
+ // pipe cross gradient - based on original dgradient, written by
+ // Mosfet (mosfet@kde.org)
+ // adapted from kde sources for Blackbox by Brad Hughes
+
+ float drx, dgx, dbx, dry, dgy, dby, xr, xg, xb, yr, yg, yb;
+ int rsign, gsign, bsign;
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int *xt = xtable, *yt = ytable,
+ tr = to.red(),
+ tg = to.green(),
+ tb = to.blue();
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ rsign = (drx < 0) ? -2 : 2;
+ gsign = (dgx < 0) ? -2 : 2;
+ bsign = (dbx < 0) ? -2 : 2;
+
+ xr = yr = (drx / 2);
+ xg = yg = (dgx / 2);
+ xb = yb = (dbx / 2);
+
+ // Create X table
+ drx /= width;
+ dgx /= width;
+ dbx /= width;
+
+ for (x = 0; x < width; x++) {
+ *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr);
+ *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg);
+ *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb);
+
+ xr -= drx;
+ xg -= dgx;
+ xb -= dbx;
+ }
+
+ // Create Y table
+ dry /= height;
+ dgy /= height;
+ dby /= height;
+
+ for (y = 0; y < height; y++) {
+ *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr));
+ *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg));
+ *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb));
+
+ yr -= dry;
+ yg -= dgy;
+ yb -= dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal pcgradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = (unsigned char) (tr - (rsign * min(*(xt++), *(yt))));
+ *(pg++) = (unsigned char) (tg - (gsign * min(*(xt++), *(yt + 1))));
+ *(pb++) = (unsigned char) (tb - (bsign * min(*(xt++), *(yt + 2))));
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = (unsigned char) (tr - (rsign * min(*(xt++), *(yt))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (bsign * min(*(xt++), *(yt + 1))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (gsign * min(*(xt++), *(yt + 2))));
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = (unsigned char) (tr - (rsign * min(*(xt++), *(yt))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = (unsigned char) (tg - (gsign * min(*(xt++), *(yt + 1))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = (unsigned char) (tb - (bsign * min(*(xt++), *(yt + 2))));
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
+
+
+void BImage::cdgradient(void) {
+ // cross diagonal gradient - based on original dgradient, written by
+ // Mosfet (mosfet@kde.org)
+ // adapted from kde sources for Blackbox by Brad Hughes
+
+ float drx, dgx, dbx, dry, dgy, dby, yr = 0.0, yg = 0.0, yb = 0.0,
+ xr = (float) from.red(),
+ xg = (float) from.green(),
+ xb = (float) from.blue();
+ unsigned char *pr = red, *pg = green, *pb = blue;
+ unsigned int w = width * 2, h = height * 2, *xt, *yt;
+
+ register unsigned int x, y;
+
+ dry = drx = (float) (to.red() - from.red());
+ dgy = dgx = (float) (to.green() - from.green());
+ dby = dbx = (float) (to.blue() - from.blue());
+
+ // Create X table
+ drx /= w;
+ dgx /= w;
+ dbx /= w;
+
+ for (xt = (xtable + (width * 3) - 1), x = 0; x < width; x++) {
+ *(xt--) = (unsigned char) xb;
+ *(xt--) = (unsigned char) xg;
+ *(xt--) = (unsigned char) xr;
+
+ xr += drx;
+ xg += dgx;
+ xb += dbx;
+ }
+
+ // Create Y table
+ dry /= h;
+ dgy /= h;
+ dby /= h;
+
+ for (yt = ytable, y = 0; y < height; y++) {
+ *(yt++) = (unsigned char) yr;
+ *(yt++) = (unsigned char) yg;
+ *(yt++) = (unsigned char) yb;
+
+ yr += dry;
+ yg += dgy;
+ yb += dby;
+ }
+
+ // Combine tables to create gradient
+
+ if (! interlaced) {
+ // normal cdgradient
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ *(pr++) = *(xt++) + *(yt);
+ *(pg++) = *(xt++) + *(yt + 1);
+ *(pb++) = *(xt++) + *(yt + 2);
+ }
+ }
+ } else {
+ // faked interlacing effect
+ unsigned char channel, channel2;
+
+ for (yt = ytable, y = 0; y < height; y++, yt += 3) {
+ for (xt = xtable, x = 0; x < width; x++) {
+ if (y & 1) {
+ channel = *(xt++) + *(yt);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pr++) = channel2;
+
+ channel = *(xt++) + *(yt + 1);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pg++) = channel2;
+
+ channel = *(xt++) + *(yt + 2);
+ channel2 = (channel >> 1) + (channel >> 2);
+ if (channel2 > channel) channel2 = 0;
+ *(pb++) = channel2;
+ } else {
+ channel = *(xt++) + *(yt);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pr++) = channel2;
+
+ channel = *(xt++) + *(yt + 1);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pg++) = channel2;
+
+ channel = *(xt++) + *(yt + 2);
+ channel2 = channel + (channel >> 3);
+ if (channel2 < channel) channel2 = ~0;
+ *(pb++) = channel2;
+ }
+ }
+ }
+ }
+}
diff --git a/otk/image.hh b/otk/image.hh
new file mode 100644
index 00000000..85ad287d
--- /dev/null
+++ b/otk/image.hh
@@ -0,0 +1,144 @@
+// -*- mode: C++; indent-tabs-mode: nil; -*-
+#ifndef __Image_hh
+#define __Image_hh
+
+extern "C" {
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+}
+
+#include <list>
+
+#include "timer.hh"
+#include "basedisplay.hh"
+#include "color.hh"
+
+class BImageControl;
+class BTexture;
+
+class BImage {
+private:
+ BImageControl *control;
+ bool interlaced;
+ XColor *colors;
+
+ BColor from, to;
+ int red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits,
+ ncolors, cpc, cpccpc;
+ unsigned char *red, *green, *blue, *red_table, *green_table, *blue_table;
+ unsigned int width, height, *xtable, *ytable;
+
+ void TrueColorDither(unsigned int bit_depth, int bytes_per_line,
+ unsigned char *pixel_data);
+ void PseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
+#ifdef ORDEREDPSEUDO
+ void OrderedPseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
+#endif
+
+ Pixmap renderPixmap(void);
+ Pixmap render_solid(const BTexture &texture);
+ Pixmap render_gradient(const BTexture &texture);
+
+ XImage *renderXImage(void);
+
+ void invert(void);
+ void bevel1(void);
+ void bevel2(void);
+ void border(const BTexture &texture);
+ void dgradient(void);
+ void egradient(void);
+ void hgradient(void);
+ void pgradient(void);
+ void rgradient(void);
+ void vgradient(void);
+ void cdgradient(void);
+ void pcgradient(void);
+
+
+public:
+ BImage(BImageControl *c, int w, int h);
+ ~BImage(void);
+
+ Pixmap render(const BTexture &texture);
+};
+
+
+class BImageControl : public TimeoutHandler {
+public:
+ struct CachedImage {
+ Pixmap pixmap;
+
+ unsigned int count, width, height;
+ unsigned long pixel1, pixel2, texture;
+ };
+
+ BImageControl(BaseDisplay *dpy, const ScreenInfo *scrn,
+ bool _dither= False, int _cpc = 4,
+ unsigned long cache_timeout = 300000l,
+ unsigned long cmax = 200l);
+ virtual ~BImageControl(void);
+
+ inline BaseDisplay *getBaseDisplay(void) const { return basedisplay; }
+
+ inline bool doDither(void) { return dither; }
+
+ inline const ScreenInfo *getScreenInfo(void) { return screeninfo; }
+
+ inline Window getDrawable(void) const { return window; }
+
+ inline Visual *getVisual(void) { return screeninfo->getVisual(); }
+
+ inline int getBitsPerPixel(void) const { return bits_per_pixel; }
+ inline int getDepth(void) const { return screen_depth; }
+ inline int getColorsPerChannel(void) const
+ { return colors_per_channel; }
+
+ unsigned long getSqrt(unsigned int x);
+
+ Pixmap renderImage(unsigned int width, unsigned int height,
+ const BTexture &texture);
+
+ void installRootColormap(void);
+ void removeImage(Pixmap pixmap);
+ void getColorTables(unsigned char **rmt, unsigned char **gmt,
+ unsigned char **bmt,
+ int *roff, int *goff, int *boff,
+ int *rbit, int *gbit, int *bbit);
+ void getXColorTable(XColor **c, int *n);
+ void getGradientBuffers(unsigned int w, unsigned int h,
+ unsigned int **xbuf, unsigned int **ybuf);
+ void setDither(bool d) { dither = d; }
+ void setColorsPerChannel(int cpc);
+
+ virtual void timeout(void);
+
+private:
+ bool dither;
+ BaseDisplay *basedisplay;
+ const ScreenInfo *screeninfo;
+ BTimer *timer;
+
+ Colormap colormap;
+
+ Window window;
+ XColor *colors;
+ int colors_per_channel, ncolors, screen_number, screen_depth,
+ bits_per_pixel, red_offset, green_offset, blue_offset,
+ red_bits, green_bits, blue_bits;
+ unsigned char red_color_table[256], green_color_table[256],
+ blue_color_table[256];
+ unsigned int *grad_xbuffer, *grad_ybuffer, grad_buffer_width,
+ grad_buffer_height;
+ unsigned long *sqrt_table, cache_max;
+
+ typedef std::list<CachedImage> CacheContainer;
+ CacheContainer cache;
+
+ Pixmap searchCache(const unsigned int width, const unsigned int height,
+ const unsigned long texture,
+ const BColor &c1, const BColor &c2);
+};
+
+
+#endif // __Image_hh
+
diff --git a/otk/image.o b/otk/image.o
new file mode 100644
index 00000000..5a675308
--- /dev/null
+++ b/otk/image.o
Binary files differ
diff --git a/otk/imagecontrol.cc b/otk/imagecontrol.cc
new file mode 100644
index 00000000..7d091bb8
--- /dev/null
+++ b/otk/imagecontrol.cc
@@ -0,0 +1,561 @@
+// -*- mode: C++; indent-tabs-mode: nil; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+extern "C" {
+#ifdef HAVE_STDIO_H
+# include <stdio.h>
+#endif // HAVE_STDIO_H
+
+#ifdef HAVE_CTYPE_H
+# include <ctype.h>
+#endif // HAVE_CTYPE_H
+
+#include <X11/Xlib.h>
+}
+
+#include <algorithm>
+
+#include "blackbox.hh"
+#include "basedisplay.hh"
+#include "color.hh"
+#include "image.hh"
+#include "texture.hh"
+
+static unsigned long bsqrt(unsigned long x) {
+ if (x <= 0) return 0;
+ if (x == 1) return 1;
+
+ unsigned long r = x >> 1;
+ unsigned long q;
+
+ while (1) {
+ q = x / r;
+ if (q >= r) return r;
+ r = (r + q) >> 1;
+ }
+}
+
+BImageControl *ctrl = 0;
+
+BImageControl::BImageControl(BaseDisplay *dpy, const ScreenInfo *scrn,
+ bool _dither, int _cpc,
+ unsigned long cache_timeout,
+ unsigned long cmax) {
+ if (! ctrl) ctrl = this;
+
+ basedisplay = dpy;
+ screeninfo = scrn;
+ setDither(_dither);
+ setColorsPerChannel(_cpc);
+
+ cache_max = cmax;
+ if (cache_timeout) {
+ timer = new BTimer(basedisplay, this);
+ timer->setTimeout(cache_timeout);
+ timer->start();
+ } else {
+ timer = (BTimer *) 0;
+ }
+
+ colors = (XColor *) 0;
+ ncolors = 0;
+
+ grad_xbuffer = grad_ybuffer = (unsigned int *) 0;
+ grad_buffer_width = grad_buffer_height = 0;
+
+ sqrt_table = (unsigned long *) 0;
+
+ screen_depth = screeninfo->getDepth();
+ window = screeninfo->getRootWindow();
+ screen_number = screeninfo->getScreenNumber();
+ colormap = screeninfo->getColormap();
+
+ int count;
+ XPixmapFormatValues *pmv = XListPixmapFormats(basedisplay->getXDisplay(),
+ &count);
+ if (pmv) {
+ bits_per_pixel = 0;
+ for (int i = 0; i < count; i++)
+ if (pmv[i].depth == screen_depth) {
+ bits_per_pixel = pmv[i].bits_per_pixel;
+ break;
+ }
+
+ XFree(pmv);
+ }
+
+ if (bits_per_pixel == 0) bits_per_pixel = screen_depth;
+ if (bits_per_pixel >= 24) setDither(False);
+
+ red_offset = green_offset = blue_offset = 0;
+
+ switch (getVisual()->c_class) {
+ case TrueColor: {
+ int i;
+
+ // compute color tables
+ unsigned long red_mask = getVisual()->red_mask,
+ green_mask = getVisual()->green_mask,
+ blue_mask = getVisual()->blue_mask;
+
+ while (! (red_mask & 1)) { red_offset++; red_mask >>= 1; }
+ while (! (green_mask & 1)) { green_offset++; green_mask >>= 1; }
+ while (! (blue_mask & 1)) { blue_offset++; blue_mask >>= 1; }
+
+ red_bits = 255 / red_mask;
+ green_bits = 255 / green_mask;
+ blue_bits = 255 / blue_mask;
+
+ for (i = 0; i < 256; i++) {
+ red_color_table[i] = i / red_bits;
+ green_color_table[i] = i / green_bits;
+ blue_color_table[i] = i / blue_bits;
+ }
+ break;
+ }
+
+ case PseudoColor:
+ case StaticColor: {
+ ncolors = colors_per_channel * colors_per_channel * colors_per_channel;
+
+ if (ncolors > (1 << screen_depth)) {
+ colors_per_channel = (1 << screen_depth) / 3;
+ ncolors = colors_per_channel * colors_per_channel * colors_per_channel;
+ }
+
+ if (colors_per_channel < 2 || ncolors > (1 << screen_depth)) {
+ fprintf(stderr,
+ "BImageControl::BImageControl: invalid colormap size %d "
+ "(%d/%d/%d) - reducing",
+ ncolors, colors_per_channel, colors_per_channel,
+ colors_per_channel);
+
+ colors_per_channel = (1 << screen_depth) / 3;
+ }
+
+ colors = new XColor[ncolors];
+ if (! colors) {
+ fprintf(stderr, "BImageControl::BImageControl: error allocating "
+ "colormap\n");
+ exit(1);
+ }
+
+ int i = 0, ii, p, r, g, b,
+
+#ifdef ORDEREDPSEUDO
+ bits = 256 / colors_per_channel;
+#else // !ORDEREDPSEUDO
+ bits = 255 / (colors_per_channel - 1);
+#endif // ORDEREDPSEUDO
+
+ red_bits = green_bits = blue_bits = bits;
+
+ for (i = 0; i < 256; i++)
+ red_color_table[i] = green_color_table[i] = blue_color_table[i] =
+ i / bits;
+
+ for (r = 0, i = 0; r < colors_per_channel; r++)
+ for (g = 0; g < colors_per_channel; g++)
+ for (b = 0; b < colors_per_channel; b++, i++) {
+ colors[i].red = (r * 0xffff) / (colors_per_channel - 1);
+ colors[i].green = (g * 0xffff) / (colors_per_channel - 1);
+ colors[i].blue = (b * 0xffff) / (colors_per_channel - 1);;
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+ }
+
+ for (i = 0; i < ncolors; i++) {
+ if (! XAllocColor(basedisplay->getXDisplay(), colormap, &colors[i])) {
+ fprintf(stderr, "couldn't alloc color %i %i %i\n",
+ colors[i].red, colors[i].green, colors[i].blue);
+ colors[i].flags = 0;
+ } else {
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+ }
+ }
+
+ XColor icolors[256];
+ int incolors = (((1 << screen_depth) > 256) ? 256 : (1 << screen_depth));
+
+ for (i = 0; i < incolors; i++)
+ icolors[i].pixel = i;
+
+ XQueryColors(basedisplay->getXDisplay(), colormap, icolors, incolors);
+ for (i = 0; i < ncolors; i++) {
+ if (! colors[i].flags) {
+ unsigned long chk = 0xffffffff, pixel, close = 0;
+
+ p = 2;
+ while (p--) {
+ for (ii = 0; ii < incolors; ii++) {
+ r = (colors[i].red - icolors[i].red) >> 8;
+ g = (colors[i].green - icolors[i].green) >> 8;
+ b = (colors[i].blue - icolors[i].blue) >> 8;
+ pixel = (r * r) + (g * g) + (b * b);
+
+ if (pixel < chk) {
+ chk = pixel;
+ close = ii;
+ }
+
+ colors[i].red = icolors[close].red;
+ colors[i].green = icolors[close].green;
+ colors[i].blue = icolors[close].blue;
+
+ if (XAllocColor(basedisplay->getXDisplay(), colormap,
+ &colors[i])) {
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ break;
+ }
+
+ case GrayScale:
+ case StaticGray: {
+ if (getVisual()->c_class == StaticGray) {
+ ncolors = 1 << screen_depth;
+ } else {
+ ncolors = colors_per_channel * colors_per_channel * colors_per_channel;
+
+ if (ncolors > (1 << screen_depth)) {
+ colors_per_channel = (1 << screen_depth) / 3;
+ ncolors =
+ colors_per_channel * colors_per_channel * colors_per_channel;
+ }
+ }
+
+ if (colors_per_channel < 2 || ncolors > (1 << screen_depth)) {
+ fprintf(stderr,
+ "BImageControl::BImageControl: invalid colormap size %d "
+ "(%d/%d/%d) - reducing",
+ ncolors, colors_per_channel, colors_per_channel,
+ colors_per_channel);
+
+ colors_per_channel = (1 << screen_depth) / 3;
+ }
+
+ colors = new XColor[ncolors];
+ if (! colors) {
+ fprintf(stderr,
+ "BImageControl::BImageControl: error allocating colormap\n");
+ exit(1);
+ }
+
+ int i = 0, ii, p, bits = 255 / (colors_per_channel - 1);
+ red_bits = green_bits = blue_bits = bits;
+
+ for (i = 0; i < 256; i++)
+ red_color_table[i] = green_color_table[i] = blue_color_table[i] =
+ i / bits;
+
+ for (i = 0; i < ncolors; i++) {
+ colors[i].red = (i * 0xffff) / (colors_per_channel - 1);
+ colors[i].green = (i * 0xffff) / (colors_per_channel - 1);
+ colors[i].blue = (i * 0xffff) / (colors_per_channel - 1);;
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+
+ if (! XAllocColor(basedisplay->getXDisplay(), colormap,
+ &colors[i])) {
+ fprintf(stderr, "couldn't alloc color %i %i %i\n",
+ colors[i].red, colors[i].green, colors[i].blue);
+ colors[i].flags = 0;
+ } else {
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+ }
+ }
+
+ XColor icolors[256];
+ int incolors = (((1 << screen_depth) > 256) ? 256 :
+ (1 << screen_depth));
+
+ for (i = 0; i < incolors; i++)
+ icolors[i].pixel = i;
+
+ XQueryColors(basedisplay->getXDisplay(), colormap, icolors, incolors);
+ for (i = 0; i < ncolors; i++) {
+ if (! colors[i].flags) {
+ unsigned long chk = 0xffffffff, pixel, close = 0;
+
+ p = 2;
+ while (p--) {
+ for (ii = 0; ii < incolors; ii++) {
+ int r = (colors[i].red - icolors[i].red) >> 8;
+ int g = (colors[i].green - icolors[i].green) >> 8;
+ int b = (colors[i].blue - icolors[i].blue) >> 8;
+ pixel = (r * r) + (g * g) + (b * b);
+
+ if (pixel < chk) {
+ chk = pixel;
+ close = ii;
+ }
+
+ colors[i].red = icolors[close].red;
+ colors[i].green = icolors[close].green;
+ colors[i].blue = icolors[close].blue;
+
+ if (XAllocColor(basedisplay->getXDisplay(), colormap,
+ &colors[i])) {
+ colors[i].flags = DoRed|DoGreen|DoBlue;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ break;
+ }
+
+ default:
+ fprintf(stderr, "BImageControl::BImageControl: unsupported visual %d\n",
+ getVisual()->c_class);
+ exit(1);
+ }
+}
+
+
+BImageControl::~BImageControl(void) {
+ delete [] sqrt_table;
+
+ delete [] grad_xbuffer;
+
+ delete [] grad_ybuffer;
+
+ if (colors) {
+ unsigned long *pixels = new unsigned long [ncolors];
+
+ for (int i = 0; i < ncolors; i++)
+ *(pixels + i) = (*(colors + i)).pixel;
+
+ XFreeColors(basedisplay->getXDisplay(), colormap, pixels, ncolors, 0);
+
+ delete [] colors;
+ }
+
+ if (! cache.empty()) {
+ //#ifdef DEBUG
+ fprintf(stderr, "BImageContol::~BImageControl: pixmap cache - "
+ "releasing %d pixmaps\n", cache.size());
+ //#endif
+ CacheContainer::iterator it = cache.begin();
+ const CacheContainer::iterator end = cache.end();
+ for (; it != end; ++it)
+ XFreePixmap(basedisplay->getXDisplay(), it->pixmap);
+ }
+ if (timer) {
+ timer->stop();
+ delete timer;
+ }
+}
+
+
+Pixmap BImageControl::searchCache(const unsigned int width,
+ const unsigned int height,
+ const unsigned long texture,
+ const BColor &c1, const BColor &c2) {
+ if (cache.empty())
+ return None;
+
+ CacheContainer::iterator it = cache.begin();
+ const CacheContainer::iterator end = cache.end();
+ for (; it != end; ++it) {
+ CachedImage& tmp = *it;
+ if (tmp.width == width && tmp.height == height &&
+ tmp.texture == texture && tmp.pixel1 == c1.pixel())
+ if (texture & BTexture::Gradient) {
+ if (tmp.pixel2 == c2.pixel()) {
+ tmp.count++;
+ return tmp.pixmap;
+ }
+ } else {
+ tmp.count++;
+ return tmp.pixmap;
+ }
+ }
+ return None;
+}
+
+
+Pixmap BImageControl::renderImage(unsigned int width, unsigned int height,
+ const BTexture &texture) {
+ if (texture.texture() & BTexture::Parent_Relative) return ParentRelative;
+
+ Pixmap pixmap = searchCache(width, height, texture.texture(),
+ texture.color(), texture.colorTo());
+ if (pixmap) return pixmap;
+
+ BImage image(this, width, height);
+ pixmap = image.render(texture);
+
+ if (! pixmap)
+ return None;
+
+ CachedImage tmp;
+
+ tmp.pixmap = pixmap;
+ tmp.width = width;
+ tmp.height = height;
+ tmp.count = 1;
+ tmp.texture = texture.texture();
+ tmp.pixel1 = texture.color().pixel();
+
+ if (texture.texture() & BTexture::Gradient)
+ tmp.pixel2 = texture.colorTo().pixel();
+ else
+ tmp.pixel2 = 0l;
+
+ cache.push_back(tmp);
+
+ if (cache.size() > cache_max) {
+#ifdef DEBUG
+ fprintf(stderr, "BImageControl::renderImage: cache is large, "
+ "forcing cleanout\n");
+#endif // DEBUG
+
+ timeout();
+ }
+
+ return pixmap;
+}
+
+
+void BImageControl::removeImage(Pixmap pixmap) {
+ if (! pixmap)
+ return;
+
+ CacheContainer::iterator it = cache.begin();
+ const CacheContainer::iterator end = cache.end();
+ for (; it != end; ++it) {
+ CachedImage &tmp = *it;
+ if (tmp.pixmap == pixmap && tmp.count > 0)
+ tmp.count--;
+ }
+
+ if (! timer)
+ timeout();
+}
+
+
+void BImageControl::getColorTables(unsigned char **rmt, unsigned char **gmt,
+ unsigned char **bmt,
+ int *roff, int *goff, int *boff,
+ int *rbit, int *gbit, int *bbit) {
+ if (rmt) *rmt = red_color_table;
+ if (gmt) *gmt = green_color_table;
+ if (bmt) *bmt = blue_color_table;
+
+ if (roff) *roff = red_offset;
+ if (goff) *goff = green_offset;
+ if (boff) *boff = blue_offset;
+
+ if (rbit) *rbit = red_bits;
+ if (gbit) *gbit = green_bits;
+ if (bbit) *bbit = blue_bits;
+}
+
+
+void BImageControl::getXColorTable(XColor **c, int *n) {
+ if (c) *c = colors;
+ if (n) *n = ncolors;
+}
+
+
+void BImageControl::getGradientBuffers(unsigned int w,
+ unsigned int h,
+ unsigned int **xbuf,
+ unsigned int **ybuf)
+{
+ if (w > grad_buffer_width) {
+ if (grad_xbuffer)
+ delete [] grad_xbuffer;
+
+ grad_buffer_width = w;
+
+ grad_xbuffer = new unsigned int[grad_buffer_width * 3];
+ }
+
+ if (h > grad_buffer_height) {
+ if (grad_ybuffer)
+ delete [] grad_ybuffer;
+
+ grad_buffer_height = h;
+
+ grad_ybuffer = new unsigned int[grad_buffer_height * 3];
+ }
+
+ *xbuf = grad_xbuffer;
+ *ybuf = grad_ybuffer;
+}
+
+
+void BImageControl::installRootColormap(void) {
+ int ncmap = 0;
+ Colormap *cmaps =
+ XListInstalledColormaps(basedisplay->getXDisplay(), window, &ncmap);
+
+ if (cmaps) {
+ bool install = True;
+ for (int i = 0; i < ncmap; i++)
+ if (*(cmaps + i) == colormap)
+ install = False;
+
+ if (install)
+ XInstallColormap(basedisplay->getXDisplay(), colormap);
+
+ XFree(cmaps);
+ }
+}
+
+
+void BImageControl::setColorsPerChannel(int cpc) {
+ if (cpc < 2) cpc = 2;
+ if (cpc > 6) cpc = 6;
+
+ colors_per_channel = cpc;
+}
+
+
+unsigned long BImageControl::getSqrt(unsigned int x) {
+ if (! sqrt_table) {
+ // build sqrt table for use with elliptic gradient
+
+ sqrt_table = new unsigned long[(256 * 256 * 2) + 1];
+
+ for (int i = 0; i < (256 * 256 * 2); i++)
+ *(sqrt_table + i) = bsqrt(i);
+ }
+
+ return (*(sqrt_table + x));
+}
+
+
+struct ZeroRefCheck {
+ inline bool operator()(const BImageControl::CachedImage &image) const {
+ return (image.count == 0);
+ }
+};
+
+struct CacheCleaner {
+ Display *display;
+ ZeroRefCheck ref_check;
+ CacheCleaner(Display *d): display(d) {}
+ inline void operator()(const BImageControl::CachedImage& image) const {
+ if (ref_check(image))
+ XFreePixmap(display, image.pixmap);
+ }
+};
+
+
+void BImageControl::timeout(void) {
+ CacheCleaner cleaner(basedisplay->getXDisplay());
+ std::for_each(cache.begin(), cache.end(), cleaner);
+ cache.remove_if(cleaner.ref_check);
+}
+
diff --git a/otk/texture.cc b/otk/texture.cc
new file mode 100644
index 00000000..22454c59
--- /dev/null
+++ b/otk/texture.cc
@@ -0,0 +1,183 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif // HAVE_CONFIG_H
+
+extern "C" {
+#include <stdio.h>
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+}
+
+#include <assert.h>
+
+#include "texture.hh"
+#include "basedisplay.hh"
+#include "image.hh"
+#include "screen.hh"
+#include "blackbox.hh"
+
+using std::string;
+
+
+BTexture::BTexture(const BaseDisplay * const _display,
+ unsigned int _screen, BImageControl* _ctrl)
+ : c(_display, _screen), ct(_display, _screen),
+ lc(_display, _screen), sc(_display, _screen), bc(_display, _screen), t(0),
+ dpy(_display), ctrl(_ctrl), scrn(_screen) { }
+
+
+BTexture::BTexture(const string &d, const BaseDisplay * const _display,
+ unsigned int _screen, BImageControl* _ctrl)
+ : c(_display, _screen), ct(_display, _screen),
+ lc(_display, _screen), sc(_display, _screen), bc(_display, _screen), t(0),
+ dpy(_display), ctrl(_ctrl), scrn(_screen) {
+ setDescription(d);
+}
+
+
+void BTexture::setColor(const BColor &cc) {
+ c = cc;
+ c.setDisplay(display(), screen());
+
+ unsigned char r, g, b, rr, gg, bb;
+
+ // calculate the light color
+ r = c.red();
+ g = c.green();
+ b = c.blue();
+ rr = r + (r >> 1);
+ gg = g + (g >> 1);
+ bb = b + (b >> 1);
+ if (rr < r) rr = ~0;
+ if (gg < g) gg = ~0;
+ if (bb < b) bb = ~0;
+ lc = BColor(rr, gg, bb, display(), screen());
+
+ // calculate the shadow color
+ r = c.red();
+ g = c.green();
+ b = c.blue();
+ rr = (r >> 2) + (r >> 1);
+ gg = (g >> 2) + (g >> 1);
+ bb = (b >> 2) + (b >> 1);
+ if (rr > r) rr = 0;
+ if (gg > g) gg = 0;
+ if (bb > b) bb = 0;
+ sc = BColor(rr, gg, bb, display(), screen());
+}
+
+
+void BTexture::setDescription(const string &d) {
+ descr.erase();
+ descr.reserve(d.length());
+
+ string::const_iterator it = d.begin(), end = d.end();
+ for (; it != end; ++it)
+ descr += tolower(*it);
+
+ if (descr.find("parentrelative") != string::npos) {
+ setTexture(BTexture::Parent_Relative);
+ } else {
+ setTexture(0);
+
+ if (descr.find("gradient") != string::npos) {
+ addTexture(BTexture::Gradient);
+ if (descr.find("crossdiagonal") != string::npos)
+ addTexture(BTexture::CrossDiagonal);
+ else if (descr.find("rectangle") != string::npos)
+ addTexture(BTexture::Rectangle);
+ else if (descr.find("pyramid") != string::npos)
+ addTexture(BTexture::Pyramid);
+ else if (descr.find("pipecross") != string::npos)
+ addTexture(BTexture::PipeCross);
+ else if (descr.find("elliptic") != string::npos)
+ addTexture(BTexture::Elliptic);
+ else if (descr.find("horizontal") != string::npos)
+ addTexture(BTexture::Horizontal);
+ else if (descr.find("vertical") != string::npos)
+ addTexture(BTexture::Vertical);
+ else
+ addTexture(BTexture::Diagonal);
+ } else {
+ addTexture(BTexture::Solid);
+ }
+
+ if (descr.find("sunken") != string::npos)
+ addTexture(BTexture::Sunken);
+ else if (descr.find("flat") != string::npos)
+ addTexture(BTexture::Flat);
+ else
+ addTexture(BTexture::Raised);
+
+ if (texture() & BTexture::Flat) {
+ if (descr.find("border") != string::npos)
+ addTexture(BTexture::Border);
+ } else {
+ if (descr.find("bevel2") != string::npos)
+ addTexture(BTexture::Bevel2);
+ else
+ addTexture(BTexture::Bevel1);
+ }
+
+ if (descr.find("interlaced") != string::npos)
+ addTexture(BTexture::Interlaced);
+ }
+}
+
+void BTexture::setDisplay(const BaseDisplay * const _display,
+ const unsigned int _screen) {
+ if (_display == display() && _screen == screen()) {
+ // nothing to do
+ return;
+ }
+
+ dpy = _display;
+ scrn = _screen;
+ c.setDisplay(_display, _screen);
+ ct.setDisplay(_display, _screen);
+ lc.setDisplay(_display, _screen);
+ sc.setDisplay(_display, _screen);
+ bc.setDisplay(_display, _screen);
+}
+
+
+BTexture& BTexture::operator=(const BTexture &tt) {
+ c = tt.c;
+ ct = tt.ct;
+ lc = tt.lc;
+ sc = tt.sc;
+ bc = tt.bc;
+ descr = tt.descr;
+ t = tt.t;
+ dpy = tt.dpy;
+ scrn = tt.scrn;
+ ctrl = tt.ctrl;
+
+ return *this;
+}
+
+
+Pixmap BTexture::render(const unsigned int width, const unsigned int height,
+ const Pixmap old) {
+ assert(display() != 0);
+ assert(texture() != BTexture::NoTexture);
+
+ if (texture() == (BTexture::Flat | BTexture::Solid))
+ return None;
+ if (texture() == BTexture::Parent_Relative)
+ return ParentRelative;
+
+ if (screen() == ~(0u))
+ scrn = DefaultScreen(display()->getXDisplay());
+
+ assert(ctrl != 0);
+ Pixmap ret = ctrl->renderImage(width, height, *this);
+
+ if (old)
+ ctrl->removeImage(old);
+
+ return ret;
+}
diff --git a/otk/texture.hh b/otk/texture.hh
new file mode 100644
index 00000000..514a0584
--- /dev/null
+++ b/otk/texture.hh
@@ -0,0 +1,92 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+#ifndef TEXTURE_HH
+#define TEXTURE_HH
+
+#include "color.hh"
+#include "util.hh"
+class BImageControl;
+
+#include <string>
+
+class BTexture {
+public:
+ enum Type {
+ // No texture
+ NoTexture = (0),
+ // bevel options
+ Flat = (1l<<0),
+ Sunken = (1l<<1),
+ Raised = (1l<<2),
+ // textures
+ Solid = (1l<<3),
+ Gradient = (1l<<4),
+ // gradients
+ Horizontal = (1l<<5),
+ Vertical = (1l<<6),
+ Diagonal = (1l<<7),
+ CrossDiagonal = (1l<<8),
+ Rectangle = (1l<<9),
+ Pyramid = (1l<<10),
+ PipeCross = (1l<<11),
+ Elliptic = (1l<<12),
+ // bevel types
+ Bevel1 = (1l<<13),
+ Bevel2 = (1l<<14),
+ // flat border
+ Border = (1l<<15),
+ // inverted image
+ Invert = (1l<<16),
+ // parent relative image
+ Parent_Relative = (1l<<17),
+ // fake interlaced image
+ Interlaced = (1l<<18)
+ };
+
+ BTexture(const BaseDisplay * const _display = 0,
+ unsigned int _screen = ~(0u), BImageControl* _ctrl = 0);
+ BTexture(const std::string &_description,
+ const BaseDisplay * const _display = 0,
+ unsigned int _screen = ~(0u), BImageControl* _ctrl = 0);
+
+ void setColor(const BColor &_color);
+ void setColorTo(const BColor &_colorTo) { ct = _colorTo; }
+ void setBorderColor(const BColor &_borderColor) { bc = _borderColor; }
+
+ const BColor &color(void) const { return c; }
+ const BColor &colorTo(void) const { return ct; }
+ const BColor &lightColor(void) const { return lc; }
+ const BColor &shadowColor(void) const { return sc; }
+ const BColor &borderColor(void) const { return bc; }
+
+ unsigned long texture(void) const { return t; }
+ void setTexture(const unsigned long _texture) { t = _texture; }
+ void addTexture(const unsigned long _texture) { t |= _texture; }
+
+ BTexture &operator=(const BTexture &tt);
+ inline bool operator==(const BTexture &tt)
+ { return (c == tt.c && ct == tt.ct && lc == tt.lc &&
+ sc == tt.sc && t == tt.t); }
+ inline bool operator!=(const BTexture &tt)
+ { return (! operator==(tt)); }
+
+ const BaseDisplay *display(void) const { return dpy; }
+ unsigned int screen(void) const { return scrn; }
+ void setDisplay(const BaseDisplay * const _display,
+ const unsigned int _screen);
+ void setImageControl(BImageControl* _ctrl) { ctrl = _ctrl; }
+ const std::string &description(void) const { return descr; }
+ void setDescription(const std::string &d);
+
+ Pixmap render(const unsigned int width, const unsigned int height,
+ const Pixmap old = 0);
+
+private:
+ BColor c, ct, lc, sc, bc;
+ std::string descr;
+ unsigned long t;
+ const BaseDisplay *dpy;
+ BImageControl *ctrl;
+ unsigned int scrn;
+};
+
+#endif // TEXTURE_HH
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-17 22:20:29 +0000