From f9dc2d9a26ffb72c8258dbf72ae406420d663081 Mon Sep 17 00:00:00 2001 From: Emmanuele Bassi Date: Sat, 19 Oct 2019 16:20:51 +0100 Subject: Drop gdk-pixbuf-xlib The separate gdk-pixbuf-xlib API and shared library has been deprecated for years, and is not even built by default; it has been moved out of tree, into its own repository, in case people still depend on it. --- CONTRIBUTING.md | 5 - contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c | 1336 ------- contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h | 28 - contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c | 408 --- contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c | 75 - contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h | 92 - contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c | 3740 -------------------- contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h | 233 -- contrib/gdk-pixbuf-xlib/meson.build | 43 - docs/gdk-pixbuf-sections.txt | 57 - docs/gdk-pixbuf.xml | 8 - docs/meson.build | 6 - meson.build | 7 - meson_options.txt | 4 - 14 files changed, 6042 deletions(-) delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c delete mode 100644 contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h delete mode 100644 contrib/gdk-pixbuf-xlib/meson.build diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index d3fd1f006..8766083b1 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -202,8 +202,6 @@ contribution. ``` ├── build-aux -├── contrib -│   └── gdk-pixbuf-xlib ├── docs ├── gdk-pixbuf │   └── pixops @@ -219,9 +217,6 @@ contribution. ``` - `build-aux`: Ancillary files, necessary to build GdkPixbuf - - `contrib`: Additional functionality outside the main GdkPixbuf API - - `gdk-pixbuf-xlib`: Xlib integration API; this library is considered - deprecated, and should not be used in newly written code - `docs`: The GdkPixbuf API reference - `gdk-pixbuf`: The core GdkPixbuf source - `pixops`: Platform-specific code for pixel operations diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c deleted file mode 100644 index 422fdc866..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c +++ /dev/null @@ -1,1336 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* GdkPixbuf library - convert X drawable information to RGB - * - * Copyright (C) 1999 Michael Zucchi - * - * Authors: Michael Zucchi - * Cody Russell - * Federico Mena-Quintero - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, see . - */ - -/* Ported to Xlib by John Harper */ - - -#include "config.h" -#include -#include -#include "gdk-pixbuf-xlib-private.h" -#include -#include - -/** - * SECTION:gdk-pixbuf-xlib-from-drawables - * @Short_description: Getting parts of an X drawable's image data into a pixbuf. - * @Title: X Drawables to Pixbufs - * - * The functions in this section allow you to take the image data - * from an X drawable and dump it into a #GdkPixbuf. This can be - * used for screenshots and other special effects. Note that these - * operations can be expensive, since the image data has to be - * transferred from the X server to the client program and converted. - * - * - * These functions are analogous to those for the GDK version of - * &gdk-pixbuf;. - */ - -#if (G_BYTE_ORDER == G_LITTLE_ENDIAN) -#define LITTLE -#endif -#define d(x) - - - -static const guint32 mask_table[] = { - 0x00000000, 0x00000001, 0x00000003, 0x00000007, - 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f, - 0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff, - 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff, - 0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff, - 0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff, - 0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff, - 0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff, - 0xffffffff -}; - - -/* color handling */ - -typedef struct xlib_colormap_struct xlib_colormap; -struct xlib_colormap_struct { - int size; - XColor *colors; - Visual *visual; - Colormap colormap; -}; - -static xlib_colormap * -xlib_get_colormap (Colormap id, Visual *visual) -{ - int i; - xlib_colormap *xc = g_new (xlib_colormap, 1); - - xc->size = visual->map_entries; - xc->colors = g_new (XColor, xc->size); - xc->visual = visual; - xc->colormap = id; - - for (i = 0; i < xc->size; i++) { - xc->colors[i].pixel = i; - xc->colors[i].flags = DoRed | DoGreen | DoBlue; - } - - XQueryColors (gdk_pixbuf_dpy, xc->colormap, xc->colors, xc->size); - - return xc; -} - -static void -xlib_colormap_free (xlib_colormap *xc) -{ - g_free (xc->colors); - g_free (xc); -} - -/* from gdkvisual.c */ -static void -visual_decompose_mask (gulong mask, - gint *shift, - gint *prec) -{ - *shift = 0; - *prec = 0; - - while (!(mask & 0x1)) { - (*shift)++; - mask >>= 1; - } - - while (mask & 0x1) { - (*prec)++; - mask >>= 1; - } -} - -static gboolean x_error; - -static int -handle_x_error (Display *dpy, XErrorEvent *ev) -{ - x_error = TRUE; - return 0; -} - -static gboolean -drawable_is_pixmap (Drawable d) -{ - /* copied from Imlib */ - - XErrorHandler errh; - XWindowAttributes wa; - gboolean is_pixmap; - - errh = XSetErrorHandler (handle_x_error); - x_error = FALSE; - XGetWindowAttributes (gdk_pixbuf_dpy, d, &wa); - XSync (gdk_pixbuf_dpy, False); - is_pixmap = x_error; - XSetErrorHandler (errh); - - return is_pixmap; -} - - - -/* - convert 1 bits-pixel data - no alpha -*/ -static void -rgb1 (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - register guint8 data; - guint8 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - d (printf ("1 bits/pixel\n")); - - /* convert upto 8 pixels/time */ - /* its probably not worth trying to make this run very fast, who uses - 1 bit displays anymore? */ - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { - o = orow; - - for (xx = 0; xx < width; xx ++) { - data = srow[xx >> 3] >> (7 - (xx & 7)) & 1; - *o++ = colormap->colors[data].red; - *o++ = colormap->colors[data].green; - *o++ = colormap->colors[data].blue; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 1 bits/pixel data - with alpha -*/ -static void -rgb1a (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - register guint8 data; - guint8 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - guint32 remap[2]; - - d (printf ("1 bits/pixel\n")); - - /* convert upto 8 pixels/time */ - /* its probably not worth trying to make this run very fast, who uses - 1 bit displays anymore? */ - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (xx = 0; xx < 2; xx++) { -#ifdef LITTLE - remap[xx] = 0xff000000 - | colormap->colors[xx].blue << 16 - | colormap->colors[xx].green << 8 - | colormap->colors[xx].red; -#else - remap[xx] = 0xff - | colormap->colors[xx].red << 24 - | colormap->colors[xx].green << 16 - | colormap->colors[xx].blue << 8; -#endif - } - - for (yy = 0; yy < height; yy++) { - o = orow; - - for (xx = 0; xx < width; xx ++) { - data = srow[xx >> 3] >> (7 - (xx & 7)) & 1; - *o++ = remap[data]; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 8 bits/pixel data - no alpha -*/ -static void -rgb8 (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - guint32 mask; - register guint32 data; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - register guint8 *s; - register guint8 *o; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - d (printf ("8 bit, no alpha output\n")); - - mask = mask_table[image->depth]; - - for (yy = 0; yy < height; yy++) { - s = srow; - o = orow; - for (xx = 0; xx < width; xx++) { - data = *s++ & mask; - *o++ = colormap->colors[data].red; - *o++ = colormap->colors[data].green; - *o++ = colormap->colors[data].blue; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 8 bits/pixel data - with alpha -*/ -static void -rgb8a (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - guint32 mask; - register guint32 data; - guint32 remap[256]; - register guint8 *s; /* read 2 pixels at once */ - register guint32 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - d (printf ("8 bit, with alpha output\n")); - - mask = mask_table[image->depth]; - - for (xx = 0; xx < colormap->size; xx++) { -#ifdef LITTLE - remap[xx] = 0xff000000 - | colormap->colors[xx].blue << 16 - | colormap->colors[xx].green << 8 - | colormap->colors[xx].red; -#else - remap[xx] = 0xff - | colormap->colors[xx].red << 24 - | colormap->colors[xx].green << 16 - | colormap->colors[xx].blue << 8; -#endif - } - - for (yy = 0; yy < height; yy++) { - s = srow; - o = (guint32 *) orow; - for (xx = 0; xx < width; xx ++) { - data = *s++ & mask; - *o++ = remap[data]; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 16 bits/pixel data - no alpha - data in lsb format -*/ -static void -rgb565lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint32 *s; /* read 2 pixels at once */ -#else - register guint8 *s; /* read 2 pixels at once */ -#endif - register guint16 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = (guint32 *) srow; -#else - s = srow; -#endif - o = (guint16 *) orow; - for (xx = 1; xx < width; xx += 2) { - register guint32 data; -#ifdef LITTLE - data = *s++; - *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 - | (data & 0x7e0) << 5 | (data & 0x600) >> 1; - *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 - | (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21; - *o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25 - | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; -#else - /* swap endianness first */ - data = s[1] | s[0] << 8 | s[3] << 16 | s[2] << 24; - s += 4; - *o++ = (data & 0xf800) | (data & 0xe000) >> 5 - | (data & 0x7e0) >> 3 | (data & 0x600) >> 9; - *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 - | (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29; - *o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17 - | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; -#endif - } - /* check for last remaining pixel */ - if (width & 1) { - register guint16 data; -#ifdef LITTLE - data = *((short *) s); -#else - data = *((short *) s); - data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); -#endif - ((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7); - ((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3); - ((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7); - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 16 bits/pixel data - no alpha - data in msb format -*/ -static void -rgb565msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint8 *s; /* need to swap data order */ -#else - register guint32 *s; /* read 2 pixels at once */ -#endif - register guint16 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = srow; -#else - s = (guint32 *) srow; -#endif - o = (guint16 *) orow; - for (xx = 1; xx < width; xx += 2) { - register guint32 data; -#ifdef LITTLE - /* swap endianness first */ - data = s[1] | s[0] << 8 | s[3] << 16 | s[2] << 24; - s += 4; - *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 - | (data & 0x7e0) << 5 | (data & 0x600) >> 1; - *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 - | (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21; - *o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25 - | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; -#else - data = *s++; - *o++ = (data & 0xf800) | (data & 0xe000) >> 5 - | (data & 0x7e0) >> 3 | (data & 0x600) >> 9; - *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 - | (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29; - *o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17 - | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; -#endif - } - /* check for last remaining pixel */ - if (width & 1) { - register guint16 data; -#ifdef LITTLE - data = *((short *) s); - data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); -#else - data = *((short *) s); -#endif - ((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7); - ((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3); - ((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7); - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 16 bits/pixel data - with alpha - data in lsb format -*/ -static void -rgb565alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint16 *s; /* read 1 pixels at once */ -#else - register guint8 *s; -#endif - register guint32 *o; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = (guint16 *) srow; -#else - s = (guint8 *) srow; -#endif - o = (guint32 *) orow; - for (xx = 0; xx < width; xx ++) { - register guint32 data; - /* rrrrrggg gggbbbbb -> rrrrrRRR ggggggGG bbbbbBBB aaaaaaaa */ - /* little endian: aaaaaaaa bbbbbBBB ggggggGG rrrrrRRR */ -#ifdef LITTLE - data = *s++; - *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 - | (data & 0x7e0) << 5 | (data & 0x600) >> 1 - | (data & 0x1f) << 19 | (data & 0x1c) << 14 - | 0xff000000; -#else - /* swap endianness first */ - data = s[0] | s[1] << 8; - s += 2; - *o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11 - | (data & 0x7e0) << 13 | (data & 0x600) << 7 - | (data & 0x1f) << 11 | (data & 0x1c) << 6 - | 0xff; -#endif - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 16 bits/pixel data - with alpha - data in msb format -*/ -static void -rgb565amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint8 *s; -#else - register guint16 *s; /* read 1 pixels at once */ -#endif - register guint32 *o; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = srow; -#else - s = (guint16 *) srow; -#endif - o = (guint32 *) orow; - for (xx = 0; xx < width; xx ++) { - register guint32 data; - /* rrrrrggg gggbbbbb -> rrrrrRRR gggggg00 bbbbbBBB aaaaaaaa */ - /* little endian: aaaaaaaa bbbbbBBB gggggg00 rrrrrRRR */ -#ifdef LITTLE - /* swap endianness first */ - data = s[0] | s[1] << 8; - s += 2; - *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 - | (data & 0x7e0) << 5 | (data & 0x600) >> 1 - | (data & 0x1f) << 19 | (data & 0x1c) << 14 - | 0xff000000; -#else - data = *s++; - *o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11 - | (data & 0x7e0) << 13 | (data & 0x600) << 7 - | (data & 0x1f) << 11 | (data & 0x1c) << 6 - | 0xff; -#endif - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 15 bits/pixel data - no alpha - data in lsb format -*/ -static void -rgb555lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint32 *s; /* read 2 pixels at once */ -#else - register guint8 *s; /* read 2 pixels at once */ -#endif - register guint16 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = (guint32 *) srow; -#else - s = srow; -#endif - o = (guint16 *) orow; - for (xx = 1; xx < width; xx += 2) { - register guint32 data; -#ifdef LITTLE - data = *s++; - *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 - | (data & 0x3e0) << 6 | (data & 0x380) << 1; - *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 - | (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20; - *o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23 - | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; -#else - /* swap endianness first */ - data = s[1] | s[0] << 8 | s[3] << 16 | s[2] << 24; - s += 4; - *o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4 - | (data & 0x3e0) >> 2 | (data & 0x380) >> 7; - *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 - | (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28; - *o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15 - | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; -#endif - } - /* check for last remaining pixel */ - if (width & 1) { - register guint16 data; -#ifdef LITTLE - data = *((short *) s); -#else - data = *((short *) s); - data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); -#endif - ((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12; - ((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7; - ((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 15 bits/pixel data - no alpha - data in msb format -*/ -static void -rgb555msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint8 *s; /* read 2 pixels at once */ -#else - register guint32 *s; /* read 2 pixels at once */ -#endif - register guint16 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = srow; -#else - s = (guint32 *) srow; -#endif - o = (guint16 *) orow; - for (xx = 1; xx < width; xx += 2) { - register guint32 data; -#ifdef LITTLE - /* swap endianness first */ - data = s[1] | s[0] << 8 | s[3] << 16 | s[2] << 24; - s += 4; - *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 - | (data & 0x3e0) << 6 | (data & 0x380) << 1; - *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 - | (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20; - *o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23 - | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; -#else - data = *s++; - *o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4 - | (data & 0x3e0) >> 2 | (data & 0x380) >> 7; - *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 - | (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28; - *o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15 - | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; -#endif - } - /* check for last remaining pixel */ - if (width & 1) { - register guint16 data; -#ifdef LITTLE - data = *((short *) s); - data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); -#else - data = *((short *) s); -#endif - ((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12; - ((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7; - ((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2; - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 15 bits/pixel data - with alpha - data in lsb format -*/ -static void -rgb555alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint16 *s; /* read 1 pixels at once */ -#else - register guint8 *s; -#endif - register guint32 *o; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = (guint16 *) srow; -#else - s = srow; -#endif - o = (guint32 *) orow; - for (xx = 0; xx < width; xx++) { - register guint32 data; - /* rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */ - /* little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */ -#ifdef LITTLE - data = *s++; - *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 - | (data & 0x3e0) << 6 | (data & 0x380) << 1 - | (data & 0x1f) << 19 | (data & 0x1c) << 14 - | 0xff000000; -#else - /* swap endianness first */ - data = s[0] | s[1] << 8; - s += 2; - *o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12 - | (data & 0x3e0) << 14 | (data & 0x380) << 9 - | (data & 0x1f) << 11 | (data & 0x1c) << 6 - | 0xff; -#endif - } - srow += bpl; - orow += rowstride; - } -} - -/* - convert 15 bits/pixel data - with alpha - data in msb format -*/ -static void -rgb555amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - -#ifdef LITTLE - register guint16 *s; /* read 1 pixels at once */ -#else - register guint8 *s; -#endif - register guint32 *o; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { -#ifdef LITTLE - s = (guint16 *) srow; -#else - s = srow; -#endif - o = (guint32 *) orow; - for (xx = 0; xx < width; xx++) { - register guint32 data; - /* rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */ - /* little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */ -#ifdef LITTLE - /* swap endianness first */ - data = s[0] | s[1] << 8; - s += 2; - *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 - | (data & 0x3e0) << 6 | (data & 0x380) << 1 - | (data & 0x1f) << 19 | (data & 0x1c) << 14 - | 0xff000000; -#else - data = *s++; - *o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12 - | (data & 0x3e0) << 14 | (data & 0x380) << 9 - | (data & 0x1f) << 11 | (data & 0x1c) << 6 - | 0xff; -#endif - } - srow += bpl; - orow += rowstride; - } -} - - -static void -rgb888alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - - guint8 *s; /* for byte order swapping */ - guint8 *o; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - d (printf ("32 bits/pixel with alpha\n")); - - /* lsb data */ - for (yy = 0; yy < height; yy++) { - s = srow; - o = orow; - for (xx = 0; xx < width; xx++) { - *o++ = s[2]; - *o++ = s[1]; - *o++ = s[0]; - *o++ = 0xff; - s += 4; - } - srow += bpl; - orow += rowstride; - } -} - -static void -rgb888lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - guint8 *o, *s; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - d (printf ("32 bit, lsb, no alpha\n")); - - for (yy = 0; yy < height; yy++) { - s = srow; - o = orow; - for (xx = 0; xx < width; xx++) { - *o++ = s[2]; - *o++ = s[1]; - *o++ = s[0]; - s += 4; - } - srow += bpl; - orow += rowstride; - } -} - -static void -rgb888amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - guint8 *s; /* for byte order swapping */ - guint8 *o; - - d (printf ("32 bit, msb, with alpha\n")); - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - /* msb data */ - for (yy = 0; yy < height; yy++) { - s = srow; - o = orow; - for (xx = 0; xx < width; xx++) { - *o++ = s[1]; - *o++ = s[2]; - *o++ = s[3]; - *o++ = 0xff; - s += 4; - } - srow += bpl; - orow += rowstride; - } -} - -static void -rgb888msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap) -{ - int xx, yy; - int width, height; - int bpl; - - guint8 *srow = (guint8 *)image->data, *orow = pixels; - guint8 *s; - guint8 *o; - - d (printf ("32 bit, msb, no alpha\n")); - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - - for (yy = 0; yy < height; yy++) { - s = srow; - o = orow; - for (xx = 0; xx < width; xx++) { - *o++ = s[1]; - *o++ = s[2]; - *o++ = s[3]; - s += 4; - } - srow += bpl; - orow += rowstride; - } -} - -/* - This should work correctly with any display/any endianness, but will probably - run quite slow -*/ -static void -convert_real_slow (XImage *image, guchar *pixels, int rowstride, xlib_colormap *cmap, int alpha) -{ - int xx, yy; - int width, height; - int bpl; - guint8 *srow = (guint8 *)image->data, *orow = pixels; - guint8 *o; - guint32 pixel; - Visual *v; - guint8 component; - int i; - int red_shift, red_prec, green_shift, green_prec, blue_shift, blue_prec; - - width = image->width; - height = image->height; - bpl = image->bytes_per_line; - v = cmap->visual; - - visual_decompose_mask (v->red_mask, &red_shift, &red_prec); - visual_decompose_mask (v->green_mask, &green_shift, &green_prec); - visual_decompose_mask (v->blue_mask, &blue_shift, &blue_prec); - - d(printf("rgb mask/shift/prec = %x:%x:%x %d:%d:%d %d:%d:%d\n", - v->red_mask, v->green_mask, v->blue_mask, - red_shift, green_shift, blue_shift, - red_prec, green_prec, blue_prec)); - - for (yy = 0; yy < height; yy++) { - o = orow; - for (xx = 0; xx < width; xx++) { - pixel = XGetPixel (image, xx, yy); - switch (v->class) { - /* I assume this is right for static & greyscale's too? */ - case StaticGray: - case GrayScale: - case StaticColor: - case PseudoColor: - *o++ = cmap->colors[pixel].red; - *o++ = cmap->colors[pixel].green; - *o++ = cmap->colors[pixel].blue; - break; - case TrueColor: - /* This is odd because it must sometimes shift left (otherwise - I'd just shift >> (*_shift - 8 + *_prec + <0-7>). This logic - should work for all bit sizes/shifts/etc. */ - component = 0; - for (i = 24; i < 32; i += red_prec) - component |= ((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> i; - *o++ = component; - component = 0; - for (i = 24; i < 32; i += green_prec) - component |= ((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> i; - *o++ = component; - component = 0; - for (i = 24; i < 32; i += blue_prec) - component |= ((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> i; - *o++ = component; - break; - case DirectColor: - *o++ = cmap->colors[((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> 24].red; - *o++ = cmap->colors[((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> 24].green; - *o++ = cmap->colors[((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> 24].blue; - break; - } - if (alpha) - *o++ = 0xff; - } - srow += bpl; - orow += rowstride; - } -} - -typedef void (* cfunc) (XImage *image, guchar *pixels, int rowstride, xlib_colormap *cmap); - -static const cfunc convert_map[] = { - rgb1,rgb1,rgb1a,rgb1a, - rgb8,rgb8,rgb8a,rgb8a, - rgb555lsb,rgb555msb,rgb555alsb,rgb555amsb, - rgb565lsb,rgb565msb,rgb565alsb,rgb565amsb, - rgb888lsb,rgb888msb,rgb888alsb,rgb888amsb -}; - -/* - perform actual conversion - - If we can, try and use the optimised code versions, but as a default - fallback, and always for direct colour, use the generic/slow but complete - conversion function. -*/ -static void -rgbconvert (XImage *image, guchar *pixels, int rowstride, int alpha, xlib_colormap *cmap) -{ - int index = (image->byte_order == MSBFirst) | (alpha != 0) << 1; - int bank=5; /* default fallback converter */ - Visual *v = cmap->visual; - - d(printf("masks = %x:%x:%x\n", v->red_mask, v->green_mask, v->blue_mask)); - d(printf("image depth = %d, bpp = %d\n", image->depth, image->bits_per_pixel)); - - switch (v->class) { - /* I assume this is right for static & greyscale's too? */ - case StaticGray: - case GrayScale: - case StaticColor: - case PseudoColor: - switch (image->bits_per_pixel) { - case 1: - bank = 0; - break; - case 8: - bank = 1; - break; - } - break; - case TrueColor: - switch (image->depth) { - case 15: - if (v->red_mask == 0x7c00 && v->green_mask == 0x3e0 && v->blue_mask == 0x1f - && image->bits_per_pixel == 16) - bank = 2; - break; - case 16: - if (v->red_mask == 0xf800 && v->green_mask == 0x7e0 && v->blue_mask == 0x1f - && image->bits_per_pixel == 16) - bank = 3; - break; - case 24: - case 32: - if (v->red_mask == 0xff0000 && v->green_mask == 0xff00 && v->blue_mask == 0xff - && image->bits_per_pixel == 32) - bank = 4; - break; - } - break; - case DirectColor: - /* always use the slow version */ - break; - } - - d(printf("converting using conversion function in bank %d\n", bank)); - - if (bank==5) { - convert_real_slow(image, pixels, rowstride, cmap, alpha); - } else { - index |= bank << 2; - (* convert_map[index]) (image, pixels, rowstride, cmap); - } -} - -static gboolean -xlib_window_is_viewable (Window w) -{ - XWindowAttributes wa; - - while (w != 0) { - Window parent, root, *children; - guint nchildren; - - XGetWindowAttributes (gdk_pixbuf_dpy, w, &wa); - if (wa.map_state != IsViewable) - return FALSE; - - if (!XQueryTree (gdk_pixbuf_dpy, w, &root, - &parent, &children, &nchildren)) - return FALSE; - - if (nchildren > 0) - XFree (children); - - if ((parent == root) || (w == root)) - return TRUE; - - w = parent; - } - - return FALSE; -} - -static gint -xlib_window_get_origin (Window w, gint *x, gint *y) -{ - Window child; - return XTranslateCoordinates (gdk_pixbuf_dpy, w, - RootWindow (gdk_pixbuf_dpy, - gdk_pixbuf_screen), - 0, 0, x, y, &child); -} - -/* Exported functions */ - -/** - * gdk_pixbuf_xlib_get_from_drawable: - * @dest: Destination pixbuf, or NULL if a new pixbuf should be created. - * @src: Source drawable. - * @cmap: A colormap if @src is a pixmap. If it is a window, this argument will - * be ignored. - * @visual: A visual if @src is a pixmap. If it is a window, this argument will - * be ignored. - * @src_x: Source X coordinate within drawable. - * @src_y: Source Y coordinate within drawable. - * @dest_x: Destination X coordinate in pixbuf, or 0 if @dest is NULL. - * @dest_y: Destination Y coordinate in pixbuf, or 0 if @dest is NULL. - * @width: Width in pixels of region to get. - * @height: Height in pixels of region to get. - * - * Transfers image data from a Gdk drawable and converts it to an RGB(A) - * representation inside a GdkPixbuf. - * - * If the drawable @src is a pixmap, then a suitable colormap must be specified, - * since pixmaps are just blocks of pixel data without an associated colormap. - * If the drawable is a window, the @cmap argument will be ignored and the - * window's own colormap will be used instead. - * - * If the specified destination pixbuf @dest is #NULL, then this function will - * create an RGB pixbuf with 8 bits per channel and no alpha, with the same size - * specified by the @width and @height arguments. In this case, the @dest_x and - * @dest_y arguments must be specified as 0, otherwise the function will return - * #NULL. If the specified destination pixbuf is not NULL and it contains alpha - * information, then the filled pixels will be set to full opacity. - * - * If the specified drawable is a pixmap, then the requested source rectangle - * must be completely contained within the pixmap, otherwise the function will - * return #NULL. - * - * If the specified drawable is a window, then it must be viewable, i.e. all of - * its ancestors up to the root window must be mapped. Also, the specified - * source rectangle must be completely contained within the window and within - * the screen. If regions of the window are obscured by noninferior windows, the - * contents of those regions are undefined. The contents of regions obscured by - * inferior windows of a different depth than that of the source window will also - * be undefined. - * - * Return value: The same pixbuf as @dest if it was non-NULL, or a newly-created - * pixbuf with a reference count of 1 if no destination pixbuf was specified; in - * the latter case, NULL will be returned if not enough memory could be - * allocated for the pixbuf to be created. - **/ -GdkPixbuf * -gdk_pixbuf_xlib_get_from_drawable (GdkPixbuf *dest, - Drawable src, - Colormap cmap, Visual *visual, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height) -{ - guint src_width, src_height; - XImage *image; - int rowstride, bpp, alpha; - XWindowAttributes wa; - xlib_colormap *x_cmap; - gboolean is_pixmap; - - /* General sanity checks */ - - g_return_val_if_fail (src != 0, NULL); - - is_pixmap = drawable_is_pixmap (src); - - if (is_pixmap) { - g_return_val_if_fail (cmap != 0, NULL); - g_return_val_if_fail (visual != NULL, NULL); - } - else - g_return_val_if_fail (xlib_window_is_viewable (src), NULL); - - if (!dest) - g_return_val_if_fail (dest_x == 0 && dest_y == 0, NULL); - else { - g_return_val_if_fail (gdk_pixbuf_get_colorspace (dest) == GDK_COLORSPACE_RGB, NULL); - g_return_val_if_fail (gdk_pixbuf_get_n_channels (dest) == 3 - || gdk_pixbuf_get_n_channels (dest) == 4, NULL); - g_return_val_if_fail (gdk_pixbuf_get_bits_per_sample (dest) == 8, NULL); - } - - /* Coordinate sanity checks */ - - if (!is_pixmap) { - XGetWindowAttributes (gdk_pixbuf_dpy, src, &wa); - src_width = wa.width; - src_height = wa.height; - } else { - Window root; - int tx, ty; - guint bwidth, depth; - XGetGeometry (gdk_pixbuf_dpy, src, &root, &tx, &ty, - &src_width, &src_height, &bwidth, &depth); - } - - g_return_val_if_fail (src_x >= 0 && src_y >= 0, NULL); - g_return_val_if_fail (src_x + width <= src_width - && src_y + height <= src_height, NULL); - - if (dest) { - g_return_val_if_fail (dest_x >= 0 && dest_y >= 0, NULL); - g_return_val_if_fail (dest_x + width <= gdk_pixbuf_get_width (dest), NULL); - g_return_val_if_fail (dest_y + height <= gdk_pixbuf_get_height (dest), NULL); - } - - if (!is_pixmap) { - int ret; - int src_xorigin, src_yorigin; - int screen_width, screen_height; - int screen_srcx, screen_srcy; - - ret = xlib_window_get_origin (src, &src_xorigin, &src_yorigin); - g_return_val_if_fail (ret != FALSE, NULL); - - screen_width = DisplayWidth (gdk_pixbuf_dpy, gdk_pixbuf_screen); - screen_height = DisplayHeight (gdk_pixbuf_dpy, gdk_pixbuf_screen); - - screen_srcx = src_xorigin + src_x; - screen_srcy = src_yorigin + src_y; - - g_return_val_if_fail (screen_srcx >= 0 && screen_srcy >= 0, NULL); - g_return_val_if_fail (screen_srcx + width <= screen_width, NULL); - g_return_val_if_fail (screen_srcy + height <= screen_height, NULL); - } - - /* Get Image in ZPixmap format (packed bits). */ - image = XGetImage (gdk_pixbuf_dpy, src, src_x, src_y, - width, height, AllPlanes, ZPixmap); - g_return_val_if_fail (image != NULL, NULL); - - /* Create the pixbuf if needed */ - if (!dest) { - dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB, - FALSE, 8, width, height); - if (!dest) { - XDestroyImage (image); - return NULL; - } - } - - /* Get the colormap if needed */ - if (!is_pixmap) - { - cmap = wa.colormap; - visual = wa.visual; - } - - x_cmap = xlib_get_colormap (cmap, visual); - - alpha = gdk_pixbuf_get_has_alpha (dest); - rowstride = gdk_pixbuf_get_rowstride (dest); - bpp = alpha ? 4 : 3; - - /* we offset into the image data based on the position we are retrieving from */ - rgbconvert (image, gdk_pixbuf_get_pixels (dest) + - (dest_y * rowstride) + (dest_x * bpp), - rowstride, - alpha, - x_cmap); - - xlib_colormap_free (x_cmap); - XDestroyImage (image); - - return dest; -} diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h deleted file mode 100644 index 3f66e020c..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h +++ /dev/null @@ -1,28 +0,0 @@ -/* GdkPixbuf library - Xlib header file - * - * Authors: John Harper - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, see . - */ - -#ifndef GDK_PIXBUF_XLIB_PRIVATE_H -#define GDK_PIXBUF_XLIB_PRIVATE_H - -#include "gdk-pixbuf-xlib.h" -#include - -extern Display *gdk_pixbuf_dpy; -extern int gdk_pixbuf_screen; - -#endif diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c deleted file mode 100644 index 31040d741..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c +++ /dev/null @@ -1,408 +0,0 @@ -/* GdkPixbuf library - Rendering functions - * - * Copyright (C) 1999 The Free Software Foundation - * - * Author: Federico Mena-Quintero - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, see . - */ - -/* Trivially ported to Xlib(RGB) by John Harper. */ - -#include "config.h" -#include "gdk-pixbuf-xlib-private.h" - -/** - * SECTION:gdk-pixbuf-xlib-rendering - * @Short_description: Rendering a pixbuf to an X drawable. - * @Title: Xlib Rendering - * - * The &gdk-pixbuf; Xlib library provides several convenience - * functions to render pixbufs to X drawables. It uses XlibRGB to - * render the image data. - * - * - * These functions are analogous to those for the GDK version of - * &gdk-pixbuf;. - */ - - -/** - * gdk_pixbuf_xlib_render_threshold_alpha: - * @pixbuf: A pixbuf. - * @bitmap: Bitmap where the bilevel mask will be painted to. - * @src_x: Source X coordinate. - * @src_y: source Y coordinate. - * @dest_x: Destination X coordinate. - * @dest_y: Destination Y coordinate. - * @width: Width of region to threshold. - * @height: Height of region to threshold. - * @alpha_threshold: Opacity values below this will be painted as zero; all - * other values will be painted as one. - * - * Takes the opacity values in a rectangular portion of a pixbuf and thresholds - * them to produce a bi-level alpha mask that can be used as a clipping mask for - * a drawable. - * - **/ -void -gdk_pixbuf_xlib_render_threshold_alpha (GdkPixbuf *pixbuf, Pixmap bitmap, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - int alpha_threshold) -{ - GC gc; - XColor color; - int x, y; - guchar *p; - int start, start_status; - int status; - XGCValues gcv; - - g_return_if_fail (pixbuf != NULL); - g_return_if_fail (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB); - g_return_if_fail (gdk_pixbuf_get_n_channels (pixbuf) == 3 || gdk_pixbuf_get_n_channels (pixbuf) == 4); - g_return_if_fail (gdk_pixbuf_get_bits_per_sample (pixbuf) == 8); - - g_return_if_fail (bitmap != 0); - g_return_if_fail (width >= 0 && height >= 0); - g_return_if_fail (src_x >= 0 && src_x + width <= gdk_pixbuf_get_width (pixbuf)); - g_return_if_fail (src_y >= 0 && src_y + height <= gdk_pixbuf_get_height (pixbuf)); - - g_return_if_fail (alpha_threshold >= 0 && alpha_threshold <= 255); - - if (width == 0 || height == 0) - return; - - gc = XCreateGC (gdk_pixbuf_dpy, bitmap, 0, &gcv); - - if (!gdk_pixbuf_get_has_alpha (pixbuf)) { - color.pixel = (alpha_threshold == 255) ? 0 : 1; - XSetForeground (gdk_pixbuf_dpy, gc, color.pixel); - XFillRectangle (gdk_pixbuf_dpy, bitmap, gc, - dest_x, dest_y, width, height); - XFreeGC (gdk_pixbuf_dpy, gc); - return; - } - - color.pixel = 0; - XSetForeground (gdk_pixbuf_dpy, gc, color.pixel); - XFillRectangle (gdk_pixbuf_dpy, bitmap, gc, - dest_x, dest_y, width, height); - - color.pixel = 1; - XSetForeground (gdk_pixbuf_dpy, gc, color.pixel); - - for (y = 0; y < height; y++) { - p = (gdk_pixbuf_get_pixels (pixbuf) + (y + src_y) * gdk_pixbuf_get_rowstride (pixbuf) + src_x * gdk_pixbuf_get_n_channels (pixbuf) - + gdk_pixbuf_get_n_channels (pixbuf) - 1); - - start = 0; - start_status = *p < alpha_threshold; - - for (x = 0; x < width; x++) { - status = *p < alpha_threshold; - - if (status != start_status) { - if (!start_status) - XDrawLine (gdk_pixbuf_dpy, bitmap, gc, - start + dest_x, y + dest_y, - x - 1 + dest_x, y + dest_y); - - start = x; - start_status = status; - } - - p += gdk_pixbuf_get_n_channels (pixbuf); - } - - if (!start_status) - XDrawLine (gdk_pixbuf_dpy, bitmap, gc, - start + dest_x, y + dest_y, - x - 1 + dest_x, y + dest_y); - } - - XFreeGC (gdk_pixbuf_dpy, gc); -} - - - -/* Creates a buffer by stripping the alpha channel of a pixbuf */ -static guchar * -remove_alpha (GdkPixbuf *pixbuf, int x, int y, int width, int height, int *rowstride) -{ - guchar *buf; - int xx, yy; - guchar *src, *dest; - - g_assert (gdk_pixbuf_get_n_channels (pixbuf) == 4); - g_assert (gdk_pixbuf_get_has_alpha (pixbuf)); - g_assert (width > 0 && height > 0); - g_assert (x >= 0 && x + width <= gdk_pixbuf_get_width (pixbuf)); - g_assert (y >= 0 && y + height <= gdk_pixbuf_get_height (pixbuf)); - - *rowstride = 4 * ((width * 3 + 3) / 4); - - buf = g_new (guchar, *rowstride * height); - - for (yy = 0; yy < height; yy++) { - src = gdk_pixbuf_get_pixels (pixbuf) + gdk_pixbuf_get_rowstride (pixbuf) * (yy + y) + x * gdk_pixbuf_get_n_channels (pixbuf); - dest = buf + *rowstride * yy; - - for (xx = 0; xx < width; xx++) { - *dest++ = *src++; - *dest++ = *src++; - *dest++ = *src++; - src++; - } - } - - return buf; -} - -/** - * gdk_pixbuf_xlib_render_to_drawable: - * @pixbuf: A pixbuf. - * @drawable: Destination drawable. - * @gc: GC used for rendering. - * @src_x: Source X coordinate within pixbuf. - * @src_y: Source Y coordinate within pixbuf. - * @dest_x: Destination X coordinate within drawable. - * @dest_y: Destination Y coordinate within drawable. - * @width: Width of region to render, in pixels. - * @height: Height of region to render, in pixels. - * @dither: Dithering mode for XlibRGB. - * @x_dither: X offset for dither. - * @y_dither: Y offset for dither. - * - * Renders a rectangular portion of a pixbuf to a drawable while using the - * specified GC. This is done using XlibRGB, so the specified drawable must - * have the XlibRGB visual and colormap. Note that this function will ignore - * the opacity information for images with an alpha channel; the GC must already - * have the clipping mask set if you want transparent regions to show through. - * - * For an explanation of dither offsets, see the XlibRGB documentation. In - * brief, the dither offset is important when re-rendering partial regions of an - * image to a rendered version of the full image, or for when the offsets to a - * base position change, as in scrolling. The dither matrix has to be shifted - * for consistent visual results. If you do not have any of these cases, the - * dither offsets can be both zero. - **/ -void -gdk_pixbuf_xlib_render_to_drawable (GdkPixbuf *pixbuf, - Drawable drawable, GC gc, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - XlibRgbDither dither, - int x_dither, int y_dither) -{ - guchar *buf; - int rowstride; - - g_return_if_fail (pixbuf != NULL); - g_return_if_fail (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB); - g_return_if_fail (gdk_pixbuf_get_n_channels (pixbuf) == 3 || gdk_pixbuf_get_n_channels (pixbuf) == 4); - g_return_if_fail (gdk_pixbuf_get_bits_per_sample (pixbuf) == 8); - - g_return_if_fail (drawable != 0); - g_return_if_fail (gc != 0); - - g_return_if_fail (width >= 0 && height >= 0); - g_return_if_fail (src_x >= 0 && src_x + width <= gdk_pixbuf_get_width (pixbuf)); - g_return_if_fail (src_y >= 0 && src_y + height <= gdk_pixbuf_get_height (pixbuf)); - - if (width == 0 || height == 0) - return; - - /* This will have to be modified once we support other image types. - * Also, GdkRGB does not have gdk_draw_rgb_32_image_dithalign(), so we - * have to pack the buffer first. Sigh. - */ - - if (gdk_pixbuf_get_has_alpha (pixbuf)) - buf = remove_alpha (pixbuf, src_x, src_y, width, height, &rowstride); - else { - buf = gdk_pixbuf_get_pixels (pixbuf) + src_y * gdk_pixbuf_get_rowstride (pixbuf) + src_x * 3; - rowstride = gdk_pixbuf_get_rowstride (pixbuf); - } - - xlib_draw_rgb_image_dithalign (drawable, gc, - dest_x, dest_y, - width, height, - dither, - buf, rowstride, - x_dither, y_dither); - - if (gdk_pixbuf_get_has_alpha (pixbuf)) - g_free (buf); -} - - - -/** - * gdk_pixbuf_xlib_render_to_drawable_alpha: - * @pixbuf: A pixbuf. - * @drawable: Destination drawable. - * @src_x: Source X coordinate within pixbuf. - * @src_y: Source Y coordinates within pixbuf. - * @dest_x: Destination X coordinate within drawable. - * @dest_y: Destination Y coordinate within drawable. - * @width: Width of region to render, in pixels. - * @height: Height of region to render, in pixels. - * @alpha_mode: If the image does not have opacity information, this is ignored. - * Otherwise, specifies how to handle transparency when rendering. - * @alpha_threshold: If the image does have opacity information and @alpha_mode - * is GDK_PIXBUF_ALPHA_BILEVEL, specifies the threshold value for opacity - * values. - * @dither: Dithering mode for XlibRGB. - * @x_dither: X offset for dither. - * @y_dither: Y offset for dither. - * - * Renders a rectangular portion of a pixbuf to a drawable. This is done using - * XlibRGB, so the specified drawable must have the XlibRGB visual and colormap. - * - * When used with #GDK_PIXBUF_ALPHA_BILEVEL, this function has to create a bitmap - * out of the thresholded alpha channel of the image and, it has to set this - * bitmap as the clipping mask for the GC used for drawing. This can be a - * significant performance penalty depending on the size and the complexity of - * the alpha channel of the image. If performance is crucial, consider handling - * the alpha channel yourself (possibly by caching it in your application) and - * using gdk_pixbuf_xlib_render_to_drawable() or GdkRGB directly instead. - **/ -void -gdk_pixbuf_xlib_render_to_drawable_alpha (GdkPixbuf *pixbuf, Drawable drawable, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - GdkPixbufAlphaMode alpha_mode, - int alpha_threshold, - XlibRgbDither dither, - int x_dither, int y_dither) -{ - Pixmap bitmap = 0; - GC gc; - XGCValues gcv; - - g_return_if_fail (pixbuf != NULL); - g_return_if_fail (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB); - g_return_if_fail (gdk_pixbuf_get_n_channels (pixbuf) == 3 || gdk_pixbuf_get_n_channels (pixbuf) == 4); - g_return_if_fail (gdk_pixbuf_get_bits_per_sample (pixbuf) == 8); - - g_return_if_fail (drawable != 0); - g_return_if_fail (width >= 0 && height >= 0); - g_return_if_fail (src_x >= 0 && src_x + width <= gdk_pixbuf_get_width (pixbuf)); - g_return_if_fail (src_y >= 0 && src_y + height <= gdk_pixbuf_get_height (pixbuf)); - - if (width == 0 || height == 0) - return; - - gc = XCreateGC (gdk_pixbuf_dpy, drawable, 0, &gcv); - - if (gdk_pixbuf_get_has_alpha (pixbuf)) { - /* Right now we only support GDK_PIXBUF_ALPHA_BILEVEL, so we - * unconditionally create the clipping mask. - */ - - bitmap = XCreatePixmap (gdk_pixbuf_dpy, - RootWindow (gdk_pixbuf_dpy, - gdk_pixbuf_screen), - width, height, 1); - gdk_pixbuf_xlib_render_threshold_alpha (pixbuf, bitmap, - src_x, src_y, - 0, 0, - width, height, - alpha_threshold); - - XSetClipMask (gdk_pixbuf_dpy, gc, bitmap); - XSetClipOrigin (gdk_pixbuf_dpy, gc, dest_x, dest_y); - } - - gdk_pixbuf_xlib_render_to_drawable (pixbuf, drawable, gc, - src_x, src_y, - dest_x, dest_y, - width, height, - dither, - x_dither, y_dither); - - if (bitmap) - XFreePixmap (gdk_pixbuf_dpy, bitmap); - - XFreeGC (gdk_pixbuf_dpy, gc); -} - -/** - * gdk_pixbuf_xlib_render_pixmap_and_mask: - * @pixbuf: A pixbuf. - * @pixmap_return: Return value for the created pixmap. - * @mask_return: Return value for the created mask. - * @alpha_threshold: Threshold value for opacity values. - * - * Creates a pixmap and a mask bitmap which are returned in the @pixmap_return - * and @mask_return arguments, respectively, and renders a pixbuf and its - * corresponding tresholded alpha mask to them. This is merely a convenience - * function; applications that need to render pixbufs with dither offsets or to - * given drawables should use gdk_pixbuf_xlib_render_to_drawable_alpha() or - * gdk_pixbuf_xlib_render_to_drawable(), and - * gdk_pixbuf_xlib_render_threshold_alpha(). - * - * If the pixbuf does not have an alpha channel, then *@mask_return will be set - * to None. - **/ -void -gdk_pixbuf_xlib_render_pixmap_and_mask (GdkPixbuf *pixbuf, - Pixmap *pixmap_return, - Pixmap *mask_return, - int alpha_threshold) -{ - g_return_if_fail (pixbuf != NULL); - - if (pixmap_return) { - GC gc; - XGCValues gcv; - - *pixmap_return = XCreatePixmap (gdk_pixbuf_dpy, - RootWindow (gdk_pixbuf_dpy, - gdk_pixbuf_screen), - gdk_pixbuf_get_width (pixbuf), - gdk_pixbuf_get_height (pixbuf), - xlib_rgb_get_depth ()); - gc = XCreateGC (gdk_pixbuf_dpy, *pixmap_return, 0, &gcv); - gdk_pixbuf_xlib_render_to_drawable (pixbuf, *pixmap_return, gc, - 0, 0, 0, 0, - gdk_pixbuf_get_width (pixbuf), - gdk_pixbuf_get_height (pixbuf), - XLIB_RGB_DITHER_NORMAL, - 0, 0); - XFreeGC (gdk_pixbuf_dpy, gc); - } - - if (mask_return) { - if (gdk_pixbuf_get_has_alpha (pixbuf)) { - *mask_return = XCreatePixmap (gdk_pixbuf_dpy, - RootWindow (gdk_pixbuf_dpy, - gdk_pixbuf_screen), - gdk_pixbuf_get_width (pixbuf), - gdk_pixbuf_get_height (pixbuf), 1); - gdk_pixbuf_xlib_render_threshold_alpha (pixbuf, - *mask_return, - 0, 0, 0, 0, - gdk_pixbuf_get_width (pixbuf), - gdk_pixbuf_get_height (pixbuf), - alpha_threshold); - } else - *mask_return = 0; - } -} diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c deleted file mode 100644 index 975337d3f..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c +++ /dev/null @@ -1,75 +0,0 @@ -/* GdkPixbuf library - Initialization functions - * - * Author: John Harper - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, see . - */ - -#include "config.h" -#include -#include "gdk-pixbuf-xlib-private.h" - -/** - * SECTION:gdk-pixbuf-xlib-init - * @Short_description: Initializing the gdk-pixbuf Xlib library. - * @Title: gdk-pixbuf Xlib initialization - * @See_also: XlibRGB - * - * In addition to the normal Gdk-specific functions, the &gdk-pixbuf; - * package provides a small library that lets Xlib-only applications - * use #GdkPixbuf structures and render them to X drawables. The - * functions in this section are used to initialize the &gdk-pixbuf; - * Xlib library. This library must be initialized near the beginning - * of the program or before calling any of the other &gdk-pixbuf; - * Xlib functions. - */ - -Display *gdk_pixbuf_dpy = NULL; -int gdk_pixbuf_screen = -1; - -/** - * gdk_pixbuf_xlib_init: - * @display: X display to use. - * @screen_num: Screen number. - * - * Initializes the gdk-pixbuf Xlib machinery by calling xlib_rgb_init(). This - * function should be called near the beginning of your program, or before using - * any of the gdk-pixbuf-xlib functions. - **/ -void -gdk_pixbuf_xlib_init (Display *display, int screen_num) -{ - xlib_rgb_init (display, ScreenOfDisplay (display, screen_num)); - gdk_pixbuf_dpy = display; - gdk_pixbuf_screen = screen_num; -} - -/** - * gdk_pixbuf_xlib_init_with_depth: - * @display: X display to use. - * @screen_num: Screen number. - * @prefDepth: Preferred depth for XlibRGB. - * - * Similar to gdk_pixbuf_xlib_init(), but also lets you specify the preferred - * depth for XlibRGB if you do not want it to use the default depth it picks. - **/ -void -gdk_pixbuf_xlib_init_with_depth (Display *display, - int screen_num, int prefDepth) -{ - xlib_rgb_init_with_depth (display, ScreenOfDisplay (display, screen_num), - prefDepth); - gdk_pixbuf_dpy = display; - gdk_pixbuf_screen = screen_num; -} diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h deleted file mode 100644 index d81db1b36..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h +++ /dev/null @@ -1,92 +0,0 @@ -/* GdkPixbuf library - Xlib header file - * - * Authors: John Harper - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, see . - */ - -#ifndef GDK_PIXBUF_XLIB_H -#define GDK_PIXBUF_XLIB_H - -#include -#include - -G_BEGIN_DECLS - -#include - - - -/* init */ - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_init (Display *display, int screen_num); - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_init_with_depth (Display *display, int screen_num, - int prefDepth); - - - -/* render */ - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_render_threshold_alpha (GdkPixbuf *pixbuf, Pixmap bitmap, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - int alpha_threshold); - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_render_to_drawable (GdkPixbuf *pixbuf, - Drawable drawable, GC gc, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - XlibRgbDither dither, - int x_dither, int y_dither); - - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_render_to_drawable_alpha (GdkPixbuf *pixbuf, - Drawable drawable, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height, - GdkPixbufAlphaMode alpha_mode, - int alpha_threshold, - XlibRgbDither dither, - int x_dither, int y_dither); - -_GDK_PIXBUF_EXTERN -void gdk_pixbuf_xlib_render_pixmap_and_mask (GdkPixbuf *pixbuf, - Pixmap *pixmap_return, - Pixmap *mask_return, - int alpha_threshold); - - - -/* drawable */ - -_GDK_PIXBUF_EXTERN -GdkPixbuf *gdk_pixbuf_xlib_get_from_drawable (GdkPixbuf *dest, - Drawable src, - Colormap cmap, Visual *visual, - int src_x, int src_y, - int dest_x, int dest_y, - int width, int height); - -G_END_DECLS - -#endif /* GDK_PIXBUF_XLIB_H */ diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c deleted file mode 100644 index e0d4f79ef..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c +++ /dev/null @@ -1,3740 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "MPL"); you may not use this file except in - * compliance with the MPL. You may obtain a copy of the MPL at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the MPL is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL - * for the specific language governing rights and limitations under the - * MPL. - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU Library General Public License (the "LGPL"), in - * which case the provisions of the LGPL are applicable instead of - * those above. If you wish to allow use of your version of this file - * only under the terms of the LGPL and not to allow others to use - * your version of this file under the MPL, indicate your decision by - * deleting the provisions above and replace them with the notice and - * other provisions required by the LGPL. If you do not delete the - * provisions above, a recipient may use your version of this file - * under either the MPL or the LGPL. - */ - -/* - * This code is derived from GdkRgb. - * For more information on GdkRgb, see http://www.levien.com/gdkrgb/ - * Raph Levien - */ - -/* Ported by Christopher Blizzard to Xlib. With permission from the - * original authors and the copyright holders of this file, the - * contents of this file are also redistributable under the terms of - * the Mozilla Public license. For information about the Mozilla - * Public License, please see the license information at - * http://www.mozilla.org/MPL/ */ - -/* This code is copyright the following authors: - * Raph Levien - * Manish Singh - * Tim Janik - * Peter Mattis - * Spencer Kimball - * Josh MacDonald - * Christopher Blizzard - * Owen Taylor - * Shawn T. Amundson -*/ - -/** - * SECTION:gdk-pixbuf-xlib-rgb - * @Short_description: Rendering RGB buffers to X drawables. - * @Title: XlibRGB - * - * The XlibRGB set of functions is a port of the GdkRGB library to - * use plain Xlib and X drawables. You can use these functions to - * render RGB buffers into drawables very quickly with high-quality - * dithering. - */ - -#if HAVE_CONFIG_H -# include -# if STDC_HEADERS -# include -# include -# include -# endif -#else -# include -# include -#endif - -#include - -#define ENABLE_GRAYSCALE - -/* include this before so that we can get endian definitions if - they are there... */ - -#include "gdk-pixbuf-xlibrgb.h" - -#ifndef MIN -#define MIN(a, b) (((a) < (b)) ? (a) : (b)) -#endif - -#ifndef MAX -#define MAX(a, b) (((a) > (b)) ? (a) : (b)) -#endif - -typedef enum { - LSB_FIRST, - MSB_FIRST -} ByteOrder; - - -typedef struct _XlibRgbInfo XlibRgbInfo; - -typedef void (*XlibRgbConvFunc) (XImage *image, - int ax, int ay, - int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap); - -/* Some of these fields should go, as they're not being used at all. - Globals should generally migrate into here - it's very likely that - we'll want to run more than one GdkRgbInfo context at the same time - (i.e. some but not all windows have privately installed - colormaps). */ - -struct _XlibRgbInfo -{ - Display *display; - Screen *screen; - int screen_num; - XVisualInfo *x_visual_info; - Colormap cmap; - XColor *cmap_colors; - Visual *default_visualid; - Colormap default_colormap; - - unsigned long *color_pixels; - unsigned long *gray_pixels; - unsigned long *reserved_pixels; - - unsigned long red_shift; - unsigned long red_prec; - unsigned long blue_shift; - unsigned long blue_prec; - unsigned long green_shift; - unsigned long green_prec; - - unsigned int nred_shades; - unsigned int ngreen_shades; - unsigned int nblue_shades; - unsigned int ngray_shades; - unsigned int nreserved; - - unsigned int bpp; - unsigned int cmap_alloced; - double gamma_val; - - /* Generally, the stage buffer is used to convert 32bit RGB, gray, - and indexed images into 24 bit packed RGB. */ - unsigned char *stage_buf; - - XlibRgbCmap *gray_cmap; - - Bool dith_default; - - Bool bitmap; /* set true if in 1 bit per pixel mode */ - GC own_gc; - - /* Convert functions */ - XlibRgbConvFunc conv; - XlibRgbConvFunc conv_d; - - XlibRgbConvFunc conv_32; - XlibRgbConvFunc conv_32_d; - - XlibRgbConvFunc conv_gray; - XlibRgbConvFunc conv_gray_d; - - XlibRgbConvFunc conv_indexed; - XlibRgbConvFunc conv_indexed_d; -}; - -static Bool xlib_rgb_install_cmap = FALSE; -static int xlib_rgb_min_colors = 5 * 5 * 5; -static Bool xlib_rgb_verbose = FALSE; - -#define IMAGE_WIDTH 256 -#define STAGE_ROWSTRIDE (IMAGE_WIDTH * 3) -#define IMAGE_HEIGHT 64 -#define N_IMAGES 6 - -static XlibRgbInfo *image_info = NULL; -static XImage *static_image[N_IMAGES]; -static int static_image_idx; - -static unsigned char *colorcube; -static unsigned char *colorcube_d; - -static unsigned long -xlib_get_prec_from_mask(unsigned long val) -{ - unsigned long retval = 0; - unsigned int cur_bit = 0; - /* walk through the number, incrementing the value if - the bit in question is set. */ - while (cur_bit < (sizeof(unsigned long) * 8)) { - if ((val >> cur_bit) & 0x1) { - retval++; - } - cur_bit++; - } - return retval; -} - -static unsigned long -xlib_get_shift_from_mask(unsigned long val) -{ - unsigned long cur_bit = 0; - /* walk through the number, looking for the first 1 */ - while (cur_bit < (sizeof(unsigned long) * 8)) { - if ((val >> cur_bit) & 0x1) { - return cur_bit; - } - cur_bit++; - } - return cur_bit; -} - - -static int -xlib_rgb_cmap_fail (const char *msg, Colormap cmap, unsigned long *pixels) -{ - unsigned long free_pixels[256]; - int n_free; - int i; - -#ifdef VERBOSE - printf ("%s", msg); -#endif - n_free = 0; - for (i = 0; i < 256; i++) - if (pixels[i] < 256) - free_pixels[n_free++] = pixels[i]; - - if (n_free) - XFreeColors(image_info->display, - cmap, - free_pixels, - n_free, - 0); - return 0; -} - -static void -xlib_rgb_make_colorcube (unsigned long *pixels, int nr, int ng, int nb) -{ - unsigned char rt[16], gt[16], bt[16]; - int i; - - colorcube = malloc(sizeof(unsigned char) * 4096); - memset(colorcube, 0, (sizeof(unsigned char) * 4096)); - for (i = 0; i < 16; i++) - { - rt[i] = ng * nb * ((i * 17 * (nr - 1) + 128) >> 8); - gt[i] = nb * ((i * 17 * (ng - 1) + 128) >> 8); - bt[i] = ((i * 17 * (nb - 1) + 128) >> 8); - } - - for (i = 0; i < 4096; i++) - { - colorcube[i] = pixels[rt[i >> 8] + gt[(i >> 4) & 0x0f] + bt[i & 0x0f]]; -#ifdef VERBOSE - printf ("%03x %02x %x %x %x\n", i, colorcube[i], rt[i >> 8], gt[(i >> 4) & 0x0f], bt[i & 0x0f]); -#endif - } -} - -/* this is the colorcube suitable for dithering */ -static void -xlib_rgb_make_colorcube_d (unsigned long *pixels, int nr, int ng, int nb) -{ - int r, g, b; - int i; - - colorcube_d = malloc(sizeof(unsigned char) * 512); - memset(colorcube_d, 0, (sizeof(unsigned char) * 512)); - for (i = 0; i < 512; i++) - { - r = MIN (nr - 1, i >> 6); - g = MIN (ng - 1, (i >> 3) & 7); - b = MIN (nb - 1, i & 7); - colorcube_d[i] = pixels[(r * ng + g) * nb + b]; - } -} - -/* Try installing a color cube of the specified size. - Make the colorcube and return TRUE on success */ -static int -xlib_rgb_try_colormap (int nr, int ng, int nb) -{ - int r, g, b; - int ri, gi, bi; - int r0, g0, b0; - Colormap cmap; - XVisualInfo *visual; - XColor *colors = NULL; - XColor color; - unsigned long pixels[256]; - unsigned long junk[256]; - int i; - int d2; - unsigned int colors_needed; - int idx; - int best[256]; - - if (nr * ng * nb < xlib_rgb_min_colors) - return FALSE; - - if (image_info->cmap_alloced) { - cmap = image_info->cmap; - visual = image_info->x_visual_info; - } - else { - cmap = image_info->default_colormap; - visual = image_info->x_visual_info; - } - colors_needed = nr * ng * nb; - for (i = 0; i < 256; i++) - { - best[i] = 192; - pixels[i] = 256; - } - -#ifndef GAMMA - if (!xlib_rgb_install_cmap) { - /* go out and get the colors for this colormap. */ - colors = malloc(sizeof(XColor) * visual->colormap_size); - for (i=0; i < visual->colormap_size; i++){ - colors[i].pixel = i; - } - XQueryColors (image_info->display, - cmap, - colors, visual->colormap_size); - /* find color cube colors that are already present */ - for (i = 0; i < MIN (256, visual->colormap_size); i++) - { - r = colors[i].red >> 8; - g = colors[i].green >> 8; - b = colors[i].blue >> 8; - ri = (r * (nr - 1) + 128) >> 8; - gi = (g * (ng - 1) + 128) >> 8; - bi = (b * (nb - 1) + 128) >> 8; - r0 = ri * 255 / (nr - 1); - g0 = gi * 255 / (ng - 1); - b0 = bi * 255 / (nb - 1); - idx = ((ri * nr) + gi) * nb + bi; - d2 = (r - r0) * (r - r0) + (g - g0) * (g - g0) + (b - b0) * (b - b0); - if (d2 < best[idx]) { - if (pixels[idx] < 256) - XFreeColors(image_info->display, - cmap, - pixels + idx, - 1, 0); - else - colors_needed--; - color.pixel = colors[i].pixel; - color.red = colors[i].red; - color.green = colors[i].green; - color.blue = colors[i].blue; - color.flags = 0; - if (!XAllocColor(image_info->display, cmap, &color)) - return xlib_rgb_cmap_fail ("error allocating system color\n", - cmap, pixels); - pixels[idx] = color.pixel; /* which is almost certainly i */ - best[idx] = d2; - } - } - } - -#endif - - if (colors_needed) - { - if (!XAllocColorCells(image_info->display, cmap, 0, NULL, 0, junk, colors_needed)) - { - char tmp_str[80]; - - sprintf (tmp_str, - "%d %d %d colormap failed (in XAllocColorCells)\n", - nr, ng, nb); - return xlib_rgb_cmap_fail (tmp_str, cmap, pixels); - } - XFreeColors(image_info->display, cmap, junk, (int)colors_needed, 0); - } - - for (r = 0, i = 0; r < nr; r++) - for (g = 0; g < ng; g++) - for (b = 0; b < nb; b++, i++) - { - if (pixels[i] == 256) - { - color.red = r * 65535 / (nr - 1); - color.green = g * 65535 / (ng - 1); - color.blue = b * 65535 / (nb - 1); - -#ifdef GAMMA - color.red = 65535 * pow (color.red / 65535.0, 0.5); - color.green = 65535 * pow (color.green / 65535.0, 0.5); - color.blue = 65535 * pow (color.blue / 65535.0, 0.5); -#endif - - /* This should be a raw XAllocColor call */ - if (!XAllocColor(image_info->display, cmap, &color)) - { - char tmp_str[80]; - - sprintf (tmp_str, "%d %d %d colormap failed\n", - nr, ng, nb); - return xlib_rgb_cmap_fail (tmp_str, - cmap, pixels); - } - pixels[i] = color.pixel; - } -#ifdef VERBOSE - printf ("%d: %lx\n", i, pixels[i]); -#endif - } - - image_info->nred_shades = nr; - image_info->ngreen_shades = ng; - image_info->nblue_shades = nb; - xlib_rgb_make_colorcube (pixels, nr, ng, nb); - xlib_rgb_make_colorcube_d (pixels, nr, ng, nb); - if (colors) - free(colors); - return TRUE; -} - -/* Return TRUE on success. */ -static Bool -xlib_rgb_do_colormaps (void) -{ - static const int sizes[][3] = { - /* { 6, 7, 6 }, */ - { 6, 6, 6 }, - { 6, 6, 5 }, - { 6, 6, 4 }, - { 5, 5, 5 }, - { 5, 5, 4 }, - { 4, 4, 4 }, - { 4, 4, 3 }, - { 3, 3, 3 }, - { 2, 2, 2 } - }; - static const int n_sizes = sizeof(sizes) / (3 * sizeof(int)); - int i; - - for (i = 0; i < n_sizes; i++) - if (xlib_rgb_try_colormap (sizes[i][0], sizes[i][1], sizes[i][2])) - return TRUE; - return FALSE; -} - -/* Make a 2 x 2 x 2 colorcube */ -static void -xlib_rgb_colorcube_222 (void) -{ - int i; - XColor color; - Colormap cmap; - - if (image_info->cmap_alloced) - cmap = image_info->cmap; - else - cmap = image_info->default_colormap; - - colorcube_d = malloc(sizeof(unsigned char) * 512); - - for (i = 0; i < 8; i++) - { - color.red = ((i & 4) >> 2) * 65535; - color.green = ((i & 2) >> 1) * 65535; - color.blue = (i & 1) * 65535; - XAllocColor (image_info->display, cmap, &color); - colorcube_d[((i & 4) << 4) | ((i & 2) << 2) | (i & 1)] = color.pixel; - } -} - -/** - * xlib_rgb_set_verbose: - * @verbose: True to be verbose - * - * Enables/disables debug spew. - **/ -void -xlib_rgb_set_verbose (Bool verbose) -{ - xlib_rgb_verbose = verbose; -} - -/** - * xlib_rgb_set_install: - * @install: True to install a colormap - * - * Sets whether we install an RGB colormap. - **/ -void -xlib_rgb_set_install (Bool install) -{ - xlib_rgb_install_cmap = install; -} - -/** - * xlib_rgb_set_min_colors: - * @min_colors: minimum colors to use - * - * Sets the minimum number of colors in the color cube. - **/ -void -xlib_rgb_set_min_colors (int min_colors) -{ - xlib_rgb_min_colors = min_colors; -} - -/* Return a "score" based on the following criteria (in hex): - - x000 is the quality - 1 is 1bpp, 2 is 4bpp, - 4 is 8bpp, - 7 is 15bpp truecolor, 8 is 16bpp truecolor, - 9 is 24bpp truecolor. - 0x00 is the speed - 1 is the normal case, - 2 means faster than normal - 00x0 gets a point for being the system visual - 000x gets a point for being pseudocolor - - A caveat: in the 8bpp modes, being the system visual seems to be - quite important. Thus, all of the 8bpp modes should be ranked at - the same speed. -*/ - -static guint32 -xlib_rgb_score_visual (XVisualInfo *visual) -{ - guint32 quality, speed, pseudo, sys; - static const char * const visual_names[] = - { - "static gray", - "grayscale", - "static color", - "pseudo color", - "true color", - "direct color", - }; - - - quality = 0; - speed = 1; - sys = 0; - if (visual->class == TrueColor || - visual->class == DirectColor) - { - if (visual->depth == 24) - { - quality = 9; - /* Should test for MSB visual here, and set speed if so. */ - } - else if (visual->depth == 16) - quality = 8; - else if (visual->depth == 15) - quality = 7; - else if (visual->depth == 8) - quality = 4; - } - else if (visual->class == PseudoColor || - visual->class == StaticColor) - { - if (visual->depth == 8) - quality = 4; - else if (visual->depth == 4) - quality = 2; - else if (visual->depth == 1) - quality = 1; - } - else if (visual->class == StaticGray -#ifdef ENABLE_GRAYSCALE - || visual->class == GrayScale -#endif - ) - { - if (visual->depth == 8) - quality = 4; - else if (visual->depth == 4) - quality = 2; - else if (visual->depth == 1) - quality = 1; - } - - if (quality == 0) - return 0; - - sys = (visual->visualid == image_info->default_visualid->visualid); - - pseudo = (visual->class == PseudoColor || visual->class == TrueColor); - - if (xlib_rgb_verbose) - printf ("Visual 0x%x, type = %s, depth = %d, %ld:%ld:%ld%s; score=%x\n", - (int)visual->visualid, - visual_names[visual->class], - visual->depth, - visual->red_mask, - visual->green_mask, - visual->blue_mask, - sys ? " (system)" : "", - (quality << 12) | (speed << 8) | (sys << 4) | pseudo); - - return (quality << 12) | (speed << 8) | (sys << 4) | pseudo; -} - -static void -xlib_rgb_choose_visual (void) -{ - XVisualInfo *visuals; - XVisualInfo *visual; - XVisualInfo *best_visual; - XVisualInfo *final_visual; - XVisualInfo template; - int num_visuals; - guint32 score, best_score; - int cur_visual = 1; - int i; - - template.screen = image_info->screen_num; - visuals = XGetVisualInfo(image_info->display, VisualScreenMask, - &template, &num_visuals); - - best_visual = visuals; - best_score = xlib_rgb_score_visual (best_visual); - - for (i = cur_visual; i < num_visuals; i++) - { - visual = &visuals[i]; - score = xlib_rgb_score_visual (visual); - if (score > best_score) - { - best_score = score; - best_visual = visual; - } - } - /* make a copy of the visual so that we can free - the allocated visual list above. */ - final_visual = malloc(sizeof(XVisualInfo)); - memcpy(final_visual, best_visual, sizeof(XVisualInfo)); - image_info->x_visual_info = final_visual; - XFree(visuals); - /* set up the shift and the precision for the red, green and blue. - this only applies to cool visuals like true color and direct color. */ - if (image_info->x_visual_info->class == TrueColor || - image_info->x_visual_info->class == DirectColor) { - image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask); - image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask); - image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask); - image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask); - image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask); - image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask); - } -} - -static void -xlib_rgb_choose_visual_for_xprint (int aDepth) -{ - XVisualInfo *visuals; - XVisualInfo *visual; - XVisualInfo *best_visual; - XVisualInfo *final_visual; - XVisualInfo template; - int num_visuals; - int cur_visual = 1; - int i; - - XWindowAttributes win_att; - Visual *root_visual; - - XGetWindowAttributes(image_info->display, - RootWindow(image_info->display, image_info->screen_num), - &win_att); - root_visual = win_att.visual; - template.screen = image_info->screen_num; - template.depth = aDepth; - visuals = XGetVisualInfo(image_info->display, VisualScreenMask|VisualDepthMask, - &template, &num_visuals); - - best_visual = visuals; - if (best_visual->visual != root_visual) { - for (i = cur_visual; i < num_visuals; i++) { - visual = &visuals[i]; - if (visual->visual == root_visual) { - best_visual = visual; - break; - } - } - } - /* make a copy of the visual so that we can free - the allocated visual list above. */ - final_visual = malloc(sizeof(XVisualInfo)); - memcpy(final_visual, best_visual, sizeof(XVisualInfo)); - image_info->x_visual_info = final_visual; - XFree(visuals); - /* set up the shift and the precision for the red, green and blue. - this only applies to cool visuals like true color and direct color. */ - if (image_info->x_visual_info->class == TrueColor || - image_info->x_visual_info->class == DirectColor) { - image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask); - image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask); - image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask); - image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask); - image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask); - image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask); - } -} - -static void xlib_rgb_select_conv (XImage *image, ByteOrder byte_order); - -static void -xlib_rgb_set_gray_cmap (Colormap cmap) -{ - int i; - XColor color; - Status status G_GNUC_UNUSED; - unsigned long pixels[256]; - int r, g, b, gray; - - for (i = 0; i < 256; i++) - { - color.pixel = i; - color.red = i * 257; - color.green = i * 257; - color.blue = i * 257; - status = XAllocColor(image_info->display, cmap, &color); - pixels[i] = color.pixel; -#ifdef VERBOSE - printf ("allocating pixel %d, %x %x %x, result %d\n", - color.pixel, color.red, color.green, color.blue, status); -#endif - } - - /* Now, we make fake colorcubes - we ultimately just use the pseudocolor - methods. */ - - colorcube = malloc(sizeof(unsigned char) * 4096); - - for (i = 0; i < 4096; i++) - { - r = (i >> 4) & 0xf0; - r = r | r >> 4; - g = i & 0xf0; - g = g | g >> 4; - b = (i << 4 & 0xf0); - b = b | b >> 4; - gray = (g + ((r + b) >> 1)) >> 1; - colorcube[i] = pixels[gray]; - } -} - -/** - * xlib_rgb_init: - * @display: X Display to use. - * @screen: Screen to use. - * - * Initializes the XlibRGB machinery with the default depth. If you use this - * function XlibRGB will automatically pick the best visual available on your - * display. This function or xlib_rgb_init_with_depth() must be called before - * using any of the other functions in XlibRGB. - **/ -void -xlib_rgb_init (Display *display, Screen *screen) -{ - int prefDepth = -1; /* let the function do the visual scoring */ - xlib_rgb_init_with_depth(display, screen, prefDepth); -} - -/** - * xlib_rgb_init_with_depth: - * @display: X display to use. - * @screen: Screen to use. - * @prefDepth: Visual depth to use for color substitution tables. This must - * be one of the supported visual depths in the specified @display. - * - * Initializes the XlibRGB machinery with a particular depth you specify, - * instead of automatically picking the best depth in the display. This - * function or xlib_rgb_init() must be called before using any of the other - * functions in XlibRGB. - **/ -void -xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth) -{ - int i; - static const int byte_order[1] = { 1 }; - - static int initialized = 0; - - if (initialized) - { - return; - } - - initialized = 1; - - /* check endian sanity */ -#if G_BYTE_ORDER == G_BIG_ENDIAN - if (((char *)byte_order)[0] == 1) { - printf ("xlib_rgb_init: compiled for big endian, but this is a little endian machine.\n\n"); - exit(1); - } -#else - if (((char *)byte_order)[0] != 1) { - printf ("xlib_rgb_init: compiled for little endian, but this is a big endian machine.\n\n"); - exit(1); - } -#endif - - if (image_info == NULL) - { - image_info = malloc(sizeof(XlibRgbInfo)); - memset(image_info, 0, sizeof(XlibRgbInfo)); - - image_info->display = display; - image_info->screen = screen; - image_info->screen_num = XScreenNumberOfScreen(screen); - image_info->x_visual_info = NULL; - image_info->cmap = 0; - image_info->default_visualid = DefaultVisual(display, image_info->screen_num); - image_info->default_colormap = DefaultColormap(display, image_info->screen_num); - - image_info->color_pixels = NULL; - image_info->gray_pixels = NULL; - image_info->reserved_pixels = NULL; - - image_info->nred_shades = 6; - image_info->ngreen_shades = 6; - image_info->nblue_shades = 4; - image_info->ngray_shades = 24; - image_info->nreserved = 0; - - image_info->bpp = 0; - image_info->cmap_alloced = FALSE; - image_info->gamma_val = 1.0; - - image_info->stage_buf = NULL; - - image_info->own_gc = NULL; - - image_info->red_shift = 0; - image_info->red_prec = 0; - image_info->green_shift = 0; - image_info->green_prec = 0; - image_info->blue_shift = 0; - image_info->blue_prec = 0; - - if (prefDepth != -1) - xlib_rgb_choose_visual_for_xprint (prefDepth); - else - xlib_rgb_choose_visual (); - - if ((image_info->x_visual_info->class == PseudoColor || - image_info->x_visual_info->class == StaticColor) && - image_info->x_visual_info->depth < 8 && - image_info->x_visual_info->depth >= 3) - { - image_info->cmap = image_info->default_colormap; - xlib_rgb_colorcube_222 (); - } - else if (image_info->x_visual_info->class == PseudoColor) - { - if (xlib_rgb_install_cmap || - image_info->x_visual_info->visualid != image_info->default_visualid->visualid) - { - image_info->cmap = XCreateColormap(image_info->display, - RootWindow(image_info->display, image_info->screen_num), - image_info->x_visual_info->visual, - AllocNone); - image_info->cmap_alloced = TRUE; - } - if (!xlib_rgb_do_colormaps ()) - { - image_info->cmap = XCreateColormap(image_info->display, - RootWindow(image_info->display, image_info->screen_num), - image_info->x_visual_info->visual, - AllocNone); - image_info->cmap_alloced = TRUE; - xlib_rgb_do_colormaps (); - } - if (xlib_rgb_verbose) - printf ("color cube: %d x %d x %d\n", - image_info->nred_shades, - image_info->ngreen_shades, - image_info->nblue_shades); - - if (!image_info->cmap_alloced) - image_info->cmap = image_info->default_colormap; - } -#ifdef ENABLE_GRAYSCALE - else if (image_info->x_visual_info->class == GrayScale) - { - image_info->cmap = XCreateColormap(image_info->display, - RootWindow(image_info->display, image_info->screen_num), - image_info->x_visual_info->visual, - AllocNone); - xlib_rgb_set_gray_cmap (image_info->cmap); - image_info->cmap_alloced = TRUE; - } -#endif - else - { - /* Always install colormap in direct color. */ - if (image_info->x_visual_info->class != DirectColor && - image_info->x_visual_info->visualid == image_info->default_visualid->visualid) - image_info->cmap = image_info->default_colormap; - else - { - image_info->cmap = XCreateColormap(image_info->display, - RootWindow(image_info->display, image_info->screen_num), - image_info->x_visual_info->visual, - AllocNone); - image_info->cmap_alloced = TRUE; - } - } - - image_info->bitmap = (image_info->x_visual_info->depth == 1); - - for (i = 0; i < N_IMAGES; i++) { - if (image_info->bitmap) { - /* Use malloc() instead of g_malloc since X will free() this mem */ - static_image[i] = XCreateImage(image_info->display, - image_info->x_visual_info->visual, - 1, - XYBitmap, - 0, NULL, IMAGE_WIDTH, IMAGE_HEIGHT, - 8, - 0); - static_image[i]->data = malloc(IMAGE_WIDTH * IMAGE_HEIGHT >> 3); - static_image[i]->bitmap_bit_order = MSBFirst; - static_image[i]->byte_order = MSBFirst; - } - else { - static_image[i] = XCreateImage(image_info->display, - image_info->x_visual_info->visual, - (unsigned int)image_info->x_visual_info->depth, - ZPixmap, - 0, NULL, - IMAGE_WIDTH, - IMAGE_HEIGHT, - 32, 0); - /* remove this when we are using shared memory.. */ - static_image[i]->data = malloc((size_t)IMAGE_WIDTH * IMAGE_HEIGHT * image_info->x_visual_info->depth); - static_image[i]->bitmap_bit_order = MSBFirst; - static_image[i]->byte_order = MSBFirst; - } - } - /* ok, so apparently, image_info->bpp is actually - BYTES per pixel. What fun! */ - switch (static_image[0]->bits_per_pixel) { - case 1: - case 8: - image_info->bpp = 1; - break; - case 16: - image_info->bpp = 2; - break; - case 24: - image_info->bpp = 3; - break; - case 32: - image_info->bpp = 4; - break; - } - xlib_rgb_select_conv (static_image[0], MSB_FIRST); - } -} - -/** - * xlib_rgb_xpixel_from_rgb: - * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB. - * - * Converts an RGB triplet into the closest color that XlibRGB visual can - * handle. - * - * Return value: X pixel value that corresponds to the closest color in the - * XlibRGB visual and colormap. - **/ -unsigned long -xlib_rgb_xpixel_from_rgb (guint32 rgb) -{ - unsigned long pixel = 0; - - if (image_info->bitmap) - { - return ((rgb & 0xff0000) >> 16) + - ((rgb & 0xff00) >> 7) + - (rgb & 0xff) > 510; - } - else if (image_info->x_visual_info->class == PseudoColor) - pixel = colorcube[((rgb & 0xf00000) >> 12) | - ((rgb & 0xf000) >> 8) | - ((rgb & 0xf0) >> 4)]; - else if (image_info->x_visual_info->depth < 8 && - image_info->x_visual_info->class == StaticColor) - { - pixel = colorcube_d[((rgb & 0x800000) >> 17) | - ((rgb & 0x8000) >> 12) | - ((rgb & 0x80) >> 7)]; - } - else if (image_info->x_visual_info->class == TrueColor || - image_info->x_visual_info->class == DirectColor) - { -#ifdef VERBOSE - printf ("shift, prec: r %d %d g %d %d b %d %d\n", - image_info->red_shift, - image_info->red_prec, - image_info->green_shift, - image_info->green_prec, - image_info->blue_shift, - image_info->blue_prec); -#endif - - pixel = (((((rgb & 0xff0000) >> 16) >> - (8 - image_info->red_prec)) << - image_info->red_shift) + - ((((rgb & 0xff00) >> 8) >> - (8 - image_info->green_prec)) << - image_info->green_shift) + - (((rgb & 0xff) >> - (8 - image_info->blue_prec)) << - image_info->blue_shift)); - } - else if (image_info->x_visual_info->class == StaticGray || - image_info->x_visual_info->class == GrayScale) - { - int gray = ((rgb & 0xff0000) >> 16) + - ((rgb & 0xff00) >> 7) + - (rgb & 0xff); - - return gray >> (10 - image_info->x_visual_info->depth); - } - - return pixel; -} - -/** - * xlib_rgb_gc_set_foreground: - * @gc: A graphic context. - * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB. - * - * This is a convenience function to set the foreground of a GC from an RGB - * triplet. It calls xlib_rgb_xpixel_from_rgb() internally and uses the - * returned pixel value to set the GC's foreground. - **/ -void -xlib_rgb_gc_set_foreground (GC gc, guint32 rgb) -{ - unsigned long color; - - color = xlib_rgb_xpixel_from_rgb (rgb); - XSetForeground(image_info->display, gc, color); -} - -/** - * xlib_rgb_gc_set_background: - * @gc: A graphic context. - * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB. - * - * This is a convenience function to set the background of a GC from an RGB - * triplet. It calls xlib_rgb_xpixel_from_rgb() internally and uses the - * returned pixel value to set the GC's background. - **/ -void -xlib_rgb_gc_set_background (GC gc, guint32 rgb) -{ - unsigned long color; - - color = xlib_rgb_xpixel_from_rgb (rgb); - XSetBackground(image_info->display, gc, color); -} - -#if G_BYTE_ORDER == G_LITTLE_ENDIAN -#define HAIRY_CONVERT_8 -#endif - -#ifdef HAIRY_CONVERT_8 -static void -xlib_rgb_convert_8 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - if (((unsigned long)obuf | (unsigned long) bp2) & 3) - { - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - obptr[0] = colorcube[((r & 0xf0) << 4) | - (g & 0xf0) | - (b >> 4)]; - obptr++; - } - } - else - { - for (x = 0; x < width - 3; x += 4) - { - guint32 r1b0g0r0; - guint32 g2r2b1g1; - guint32 b3g3r3b2; - - r1b0g0r0 = ((guint32 *)bp2)[0]; - g2r2b1g1 = ((guint32 *)bp2)[1]; - b3g3r3b2 = ((guint32 *)bp2)[2]; - ((guint32 *)obptr)[0] = - colorcube[((r1b0g0r0 & 0xf0) << 4) | - ((r1b0g0r0 & 0xf000) >> 8) | - ((r1b0g0r0 & 0xf00000) >> 20)] | - (colorcube[((r1b0g0r0 & 0xf0000000) >> 20) | - (g2r2b1g1 & 0xf0) | - ((g2r2b1g1 & 0xf000) >> 12)] << 8) | - (colorcube[((g2r2b1g1 & 0xf00000) >> 12) | - ((g2r2b1g1 & 0xf0000000) >> 24) | - ((b3g3r3b2 & 0xf0) >> 4)] << 16) | - (colorcube[((b3g3r3b2 & 0xf000) >> 4) | - ((b3g3r3b2 & 0xf00000) >> 16) | - (b3g3r3b2 >> 28)] << 24); - bp2 += 12; - obptr += 4; - } - for (; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - obptr[0] = colorcube[((r & 0xf0) << 4) | - (g & 0xf0) | - (b >> 4)]; - obptr++; - } - } - bptr += rowstride; - obuf += bpl; - } -} -#else -static void -xlib_rgb_convert_8 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - obptr[0] = colorcube[((r & 0xf0) << 4) | - (g & 0xf0) | - (b >> 4)]; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} -#endif - -#if 1 - -/* This dither table was generated by Raph Levien using patented - technology (US Patent 5,276,535). The dither table itself is in the - public domain. */ - -#define DM_WIDTH 128 -#define DM_WIDTH_SHIFT 7 -#define DM_HEIGHT 128 -static const unsigned char DM[128][128] = -{ - { 0, 41, 23, 5, 17, 39, 7, 15, 62, 23, 40, 51, 31, 47, 9, 32, 52, 27, 57, 25, 6, 61, 27, 52, 37, 7, 40, 63, 18, 36, 10, 42, 25, 62, 45, 34, 20, 42, 37, 14, 35, 29, 50, 10, 61, 2, 40, 8, 37, 12, 58, 22, 5, 41, 10, 39, 0, 60, 11, 46, 2, 55, 38, 17, 36, 59, 13, 54, 37, 56, 8, 29, 16, 13, 63, 22, 41, 55, 7, 20, 49, 14, 23, 55, 37, 23, 19, 36, 15, 49, 23, 63, 30, 14, 38, 27, 53, 13, 22, 41, 19, 31, 7, 19, 50, 30, 49, 16, 3, 32, 56, 40, 29, 34, 8, 48, 19, 45, 4, 51, 12, 46, 35, 49, 16, 42, 12, 62 }, - { 30, 57, 36, 54, 47, 34, 52, 27, 43, 4, 28, 7, 17, 36, 62, 13, 44, 7, 18, 48, 33, 21, 44, 14, 30, 47, 12, 33, 5, 55, 31, 58, 13, 30, 4, 17, 52, 10, 60, 26, 46, 0, 39, 27, 42, 22, 47, 25, 60, 32, 9, 38, 48, 17, 59, 30, 49, 18, 34, 25, 51, 19, 5, 48, 21, 8, 28, 46, 1, 32, 41, 19, 54, 47, 37, 18, 28, 11, 44, 30, 39, 56, 2, 33, 8, 42, 61, 28, 58, 8, 46, 9, 41, 4, 58, 7, 21, 48, 59, 10, 52, 14, 42, 57, 12, 25, 7, 53, 42, 24, 11, 50, 17, 59, 42, 2, 36, 60, 32, 17, 63, 29, 21, 7, 59, 32, 24, 39 }, - 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{ 51, 14, 61, 29, 59, 20, 55, 31, 0, 49, 11, 60, 3, 26, 22, 56, 0, 40, 12, 43, 41, 8, 36, 0, 17, 57, 24, 2, 46, 26, 61, 18, 0, 38, 12, 59, 6, 49, 3, 57, 19, 63, 5, 33, 18, 54, 28, 56, 0, 43, 26, 46, 63, 27, 56, 22, 27, 54, 38, 28, 63, 24, 10, 45, 0, 31, 42, 21, 12, 25, 44, 49, 59, 6, 26, 50, 3, 34, 27, 59, 0, 35, 62, 16, 4, 58, 47, 0, 43, 24, 37, 2, 54, 20, 46, 31, 0, 56, 34, 5, 55, 45, 60, 37, 0, 40, 10, 38, 63, 46, 15, 20, 0, 53, 21, 62, 30, 11, 24, 27, 40, 0, 57, 26, 3, 45, 27, 35 }, -}; - -#else -#define DM_WIDTH 8 -#define DM_WIDTH_SHIFT 3 -#define DM_HEIGHT 8 -static const unsigned char DM[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 } -}; -#endif - -static guint32 *DM_565 = NULL; - -static void -xlib_rgb_preprocess_dm_565 (void) -{ - if (DM_565 == NULL) - { - int i, x, y; - guint32 dith; - - DM_565 = malloc(sizeof(guint32) * DM_WIDTH * DM_HEIGHT); - i = 0; - for (y = 0; y < DM_HEIGHT; y++) - { - for (x = 0; x < DM_WIDTH; x++) - { - dith = DM[y][x] >> 3; - DM_565[i] = (dith << 20) | dith | (((7 - dith) >> 1) << 10); -#ifdef VERBOSE - printf ("%i %x %x\n", i, dith, DM_565[i]); -#endif - i++; - } - } - } -} - -static void -xlib_rgb_convert_8_d666 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int dith; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7; - r = ((r * 5) + dith) >> 8; - g = ((g * 5) + (262 - dith)) >> 8; - b = ((b * 5) + dith) >> 8; - obptr[0] = colorcube_d[(r << 6) | (g << 3) | b]; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_8_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int dith; - int rs, gs, bs; - - bptr = buf; - bpl = image->bytes_per_line; - rs = image_info->nred_shades - 1; - gs = image_info->ngreen_shades - 1; - bs = image_info->nblue_shades - 1; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7; - r = ((r * rs) + dith) >> 8; - g = ((g * gs) + (262 - dith)) >> 8; - b = ((b * bs) + dith) >> 8; - obptr[0] = colorcube_d[(r << 6) | (g << 3) | b]; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_8_indexed (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - unsigned char c; - unsigned char *lut; - - lut = cmap->lut; - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - c = *bp2++; - obptr[0] = lut[c]; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_gray8 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - obptr[0] = (g + ((b + r) >> 1)) >> 1; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_gray8_gray (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int y; - int bpl; - unsigned char *obuf; - unsigned char *bptr; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - memcpy (obuf, bptr, (unsigned int)width); - bptr += rowstride; - obuf += bpl; - } -} - -#if G_BYTE_ORDER == G_LITTLE_ENDIAN -#define HAIRY_CONVERT_565 -#endif - -#ifdef HAIRY_CONVERT_565 -/* Render a 24-bit RGB image in buf into the GdkImage, without dithering. - This assumes native byte ordering - what should really be done is to - check whether static_image->byte_order is consistent with the _ENDIAN - config flag, and if not, use a different function. - - This one is even faster than the one below - its inner loop loads 3 - words (i.e. 4 24-bit pixels), does a lot of shifting and masking, - then writes 2 words. */ -static void -xlib_rgb_convert_565 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - unsigned char r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - if (((unsigned long)obuf | (unsigned long) bp2) & 3) - { - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - ((guint16 *)obptr)[0] = ((r & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (b >> 3); - obptr += 2; - } - } - else - { - for (x = 0; x < width - 3; x += 4) - { - guint32 r1b0g0r0; - guint32 g2r2b1g1; - guint32 b3g3r3b2; - - r1b0g0r0 = ((guint32 *)bp2)[0]; - g2r2b1g1 = ((guint32 *)bp2)[1]; - b3g3r3b2 = ((guint32 *)bp2)[2]; - ((guint32 *)obptr)[0] = - ((r1b0g0r0 & 0xf8) << 8) | - ((r1b0g0r0 & 0xfc00) >> 5) | - ((r1b0g0r0 & 0xf80000) >> 19) | - (r1b0g0r0 & 0xf8000000) | - ((g2r2b1g1 & 0xfc) << 19) | - ((g2r2b1g1 & 0xf800) << 5); - ((guint32 *)obptr)[1] = - ((g2r2b1g1 & 0xf80000) >> 8) | - ((g2r2b1g1 & 0xfc000000) >> 21) | - ((b3g3r3b2 & 0xf8) >> 3) | - ((b3g3r3b2 & 0xf800) << 16) | - ((b3g3r3b2 & 0xfc0000) << 3) | - ((b3g3r3b2 & 0xf8000000) >> 11); - bp2 += 12; - obptr += 8; - } - for (; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - ((guint16 *)obptr)[0] = ((r & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (b >> 3); - obptr += 2; - } - } - bptr += rowstride; - obuf += bpl; - } -} -#else -/* Render a 24-bit RGB image in buf into the GdkImage, without dithering. - This assumes native byte ordering - what should really be done is to - check whether static_image->byte_order is consistent with the _ENDIAN - config flag, and if not, use a different function. - - This routine is faster than the one included with Gtk 1.0 for a number - of reasons: - - 1. Shifting instead of lookup tables (less memory traffic). - - 2. Much less register pressure, especially because shifts are - in the code. - - 3. A memcpy is avoided (i.e. the transfer function). - - 4. On big-endian architectures, byte swapping is avoided. - - That said, it wouldn't be hard to make it even faster - just make an - inner loop that reads 3 words (i.e. 4 24-bit pixels), does a lot of - shifting and masking, then writes 2 words. -*/ -static void -xlib_rgb_convert_565 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - unsigned char r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - ((unsigned short *)obuf)[x] = ((r & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (b >> 3); - } - bptr += rowstride; - obuf += bpl; - } -} -#endif - -#ifdef HAIRY_CONVERT_565 -static void -xlib_rgb_convert_565_gray (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - unsigned char g; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - if (((unsigned long)obuf | (unsigned long) bp2) & 3) - { - for (x = 0; x < width; x++) - { - g = *bp2++; - ((guint16 *)obptr)[0] = ((g & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (g >> 3); - obptr += 2; - } - } - else - { - for (x = 0; x < width - 3; x += 4) - { - guint32 g3g2g1g0; - - g3g2g1g0 = ((guint32 *)bp2)[0]; - ((guint32 *)obptr)[0] = - ((g3g2g1g0 & 0xf8) << 8) | - ((g3g2g1g0 & 0xfc) << 3) | - ((g3g2g1g0 & 0xf8) >> 3) | - (g3g2g1g0 & 0xf800) << 16 | - ((g3g2g1g0 & 0xfc00) << 11) | - ((g3g2g1g0 & 0xf800) << 5); - ((guint32 *)obptr)[1] = - ((g3g2g1g0 & 0xf80000) >> 8) | - ((g3g2g1g0 & 0xfc0000) >> 13) | - ((g3g2g1g0 & 0xf80000) >> 19) | - (g3g2g1g0 & 0xf8000000) | - ((g3g2g1g0 & 0xfc000000) >> 5) | - ((g3g2g1g0 & 0xf8000000) >> 11); - bp2 += 4; - obptr += 8; - } - for (; x < width; x++) - { - g = *bp2++; - ((guint16 *)obptr)[0] = ((g & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (g >> 3); - obptr += 2; - } - } - bptr += rowstride; - obuf += bpl; - } -} -#else -static void -xlib_rgb_convert_565_gray (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - unsigned char g; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - g = *bp2++; - ((guint16 *)obuf)[x] = ((g & 0xf8) << 8) | - ((g & 0xfc) << 3) | - (g >> 3); - } - bptr += rowstride; - obuf += bpl; - } -} -#endif - -static void -xlib_rgb_convert_565_br (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - unsigned char r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - /* final word is: - g4 g3 g2 b7 b6 b5 b4 b3 r7 r6 r5 r4 r3 g7 g6 g5 - */ - ((unsigned short *)obuf)[x] = (r & 0xf8) | - ((g & 0xe0) >> 5) | - ((g & 0x1c) << 11) | - ((b & 0xf8) << 5); - } - bptr += rowstride; - obuf += bpl; - } -} - -/* Thanks to Ray Lehtiniemi for a patch that resulted in a ~25% speedup - in this mode. */ -#ifdef HAIRY_CONVERT_565 -static void -xlib_rgb_convert_565_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - /* Now this is what I'd call some highly tuned code! */ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - - width += x_align; - height += y_align; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = y_align; y < height; y++) - { - guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT); - bp2 = bptr; - obptr = obuf; - if (((unsigned long)obuf | (unsigned long) bp2) & 3) - { - for (x = x_align; x < width; x++) - { - gint32 rgb = *bp2++ << 20; - rgb += *bp2++ << 10; - rgb += *bp2++; - rgb += dmp[x & (DM_WIDTH - 1)]; - rgb += 0x10040100 - - ((rgb & 0x1e0001e0) >> 5) - - ((rgb & 0x00070000) >> 6); - - ((unsigned short *)obptr)[0] = - ((rgb & 0x0f800000) >> 12) | - ((rgb & 0x0003f000) >> 7) | - ((rgb & 0x000000f8) >> 3); - obptr += 2; - } - } - else - { - for (x = x_align; x < width - 3; x += 4) - { - guint32 r1b0g0r0; - guint32 g2r2b1g1; - guint32 b3g3r3b2; - guint32 rgb02, rgb13; - - r1b0g0r0 = ((guint32 *)bp2)[0]; - g2r2b1g1 = ((guint32 *)bp2)[1]; - b3g3r3b2 = ((guint32 *)bp2)[2]; - rgb02 = - ((r1b0g0r0 & 0xff) << 20) + - ((r1b0g0r0 & 0xff00) << 2) + - ((r1b0g0r0 & 0xff0000) >> 16) + - dmp[x & (DM_WIDTH - 1)]; - rgb02 += 0x10040100 - - ((rgb02 & 0x1e0001e0) >> 5) - - ((rgb02 & 0x00070000) >> 6); - rgb13 = - ((r1b0g0r0 & 0xff000000) >> 4) + - ((g2r2b1g1 & 0xff) << 10) + - ((g2r2b1g1 & 0xff00) >> 8) + - dmp[(x + 1) & (DM_WIDTH - 1)]; - rgb13 += 0x10040100 - - ((rgb13 & 0x1e0001e0) >> 5) - - ((rgb13 & 0x00070000) >> 6); - ((guint32 *)obptr)[0] = - ((rgb02 & 0x0f800000) >> 12) | - ((rgb02 & 0x0003f000) >> 7) | - ((rgb02 & 0x000000f8) >> 3) | - ((rgb13 & 0x0f800000) << 4) | - ((rgb13 & 0x0003f000) << 9) | - ((rgb13 & 0x000000f8) << 13); - rgb02 = - ((g2r2b1g1 & 0xff0000) << 4) + - ((g2r2b1g1 & 0xff000000) >> 14) + - (b3g3r3b2 & 0xff) + - dmp[(x + 2) & (DM_WIDTH - 1)]; - rgb02 += 0x10040100 - - ((rgb02 & 0x1e0001e0) >> 5) - - ((rgb02 & 0x00070000) >> 6); - rgb13 = - ((b3g3r3b2 & 0xff00) << 12) + - ((b3g3r3b2 & 0xff0000) >> 6) + - ((b3g3r3b2 & 0xff000000) >> 24) + - dmp[(x + 3) & (DM_WIDTH - 1)]; - rgb13 += 0x10040100 - - ((rgb13 & 0x1e0001e0) >> 5) - - ((rgb13 & 0x00070000) >> 6); - ((guint32 *)obptr)[1] = - ((rgb02 & 0x0f800000) >> 12) | - ((rgb02 & 0x0003f000) >> 7) | - ((rgb02 & 0x000000f8) >> 3) | - ((rgb13 & 0x0f800000) << 4) | - ((rgb13 & 0x0003f000) << 9) | - ((rgb13 & 0x000000f8) << 13); - bp2 += 12; - obptr += 8; - } - for (; x < width; x++) - { - gint32 rgb = *bp2++ << 20; - rgb += *bp2++ << 10; - rgb += *bp2++; - rgb += dmp[x & (DM_WIDTH - 1)]; - rgb += 0x10040100 - - ((rgb & 0x1e0001e0) >> 5) - - ((rgb & 0x00070000) >> 6); - - ((unsigned short *)obptr)[0] = - ((rgb & 0x0f800000) >> 12) | - ((rgb & 0x0003f000) >> 7) | - ((rgb & 0x000000f8) >> 3); - obptr += 2; - } - } - bptr += rowstride; - obuf += bpl; - } -} -#else -static void -xlib_rgb_convert_565_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr; - - width += x_align; - height += y_align; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + (ax - x_align) * 2; - - for (y = y_align; y < height; y++) - { - guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT); - unsigned char *bp2 = bptr; - - for (x = x_align; x < width; x++) - { - gint32 rgb = *bp2++ << 20; - rgb += *bp2++ << 10; - rgb += *bp2++; - rgb += dmp[x & (DM_WIDTH - 1)]; - rgb += 0x10040100 - - ((rgb & 0x1e0001e0) >> 5) - - ((rgb & 0x00070000) >> 6); - - ((unsigned short *)obuf)[x] = - ((rgb & 0x0f800000) >> 12) | - ((rgb & 0x0003f000) >> 7) | - ((rgb & 0x000000f8) >> 3); - } - - bptr += rowstride; - obuf += bpl; - } -} -#endif - -static void -xlib_rgb_convert_555 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - unsigned char r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - ((unsigned short *)obuf)[x] = ((r & 0xf8) << 7) | - ((g & 0xf8) << 2) | - (b >> 3); - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_555_br (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - unsigned char r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - /* final word is: - g5 g4 g3 b7 b6 b5 b4 b3 0 r7 r6 r5 r4 r3 g7 g6 - */ - ((unsigned short *)obuf)[x] = ((r & 0xf8) >> 1) | - ((g & 0xc0) >> 6) | - ((g & 0x18) << 10) | - ((b & 0xf8) << 5); - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_888_msb (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int y; - unsigned char *obuf; - int bpl; - unsigned char *bptr; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; - for (y = 0; y < height; y++) - { - memcpy (obuf, bptr, (unsigned int)(width + width + width)); - bptr += rowstride; - obuf += bpl; - } -} - -/* todo: optimize this */ -#if G_BYTE_ORDER == G_LITTLE_ENDIAN -#define HAIRY_CONVERT_888 -#endif - -#ifdef HAIRY_CONVERT_888 -static void -xlib_rgb_convert_888_lsb (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - if (((unsigned long)obuf | (unsigned long) bp2) & 3) - { - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - *obptr++ = b; - *obptr++ = g; - *obptr++ = r; - bp2 += 3; - } - } - else - { - for (x = 0; x < width - 3; x += 4) - { - guint32 r1b0g0r0; - guint32 g2r2b1g1; - guint32 b3g3r3b2; - - r1b0g0r0 = ((guint32 *)bp2)[0]; - g2r2b1g1 = ((guint32 *)bp2)[1]; - b3g3r3b2 = ((guint32 *)bp2)[2]; - ((guint32 *)obptr)[0] = - (r1b0g0r0 & 0xff00) | - ((r1b0g0r0 & 0xff0000) >> 16) | - (((g2r2b1g1 & 0xff00) | (r1b0g0r0 & 0xff)) << 16); - ((guint32 *)obptr)[1] = - (g2r2b1g1 & 0xff0000ff) | - ((r1b0g0r0 & 0xff000000) >> 16) | - ((b3g3r3b2 & 0xff) << 16); - ((guint32 *)obptr)[2] = - (((g2r2b1g1 & 0xff0000) | (b3g3r3b2 & 0xff000000)) >> 16) | - ((b3g3r3b2 & 0xff00) << 16) | - ((b3g3r3b2 & 0xff0000)); - bp2 += 12; - obptr += 12; - } - for (; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - *obptr++ = b; - *obptr++ = g; - *obptr++ = r; - bp2 += 3; - } - } - bptr += rowstride; - obuf += bpl; - } -} -#else -static void -xlib_rgb_convert_888_lsb (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - obuf[x * 3] = b; - obuf[x * 3 + 1] = g; - obuf[x * 3 + 2] = r; - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} -#endif - -/* convert 24-bit packed to 32-bit unpacked */ -/* todo: optimize this */ -static void -xlib_rgb_convert_0888 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - ((guint32 *)obuf)[x] = (r << 16) | (g << 8) | b; - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_0888_br (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - ((guint32 *)obuf)[x] = (b << 24) | (g << 16) | (r << 8); - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_8880_br (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; - for (y = 0; y < height; y++) - { - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - ((guint32 *)obuf)[x] = (b << 16) | (g << 8) | r; - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -/* Generic truecolor/directcolor conversion function. Slow, but these - are oddball modes. */ -static void -xlib_rgb_convert_truecolor_lsb (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - int r_right, r_left; - int g_right, g_left; - int b_right, b_left; - int bpp; - guint32 pixel; - int i; - - r_right = 8 - image_info->red_prec; - r_left = image_info->red_shift; - g_right = 8 - image_info->green_prec; - g_left = image_info->green_shift; - b_right = 8 - image_info->blue_prec; - b_left = image_info->blue_shift; - bpp = image_info->bpp; - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; - for (y = 0; y < height; y++) - { - obptr = obuf; - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - pixel = ((r >> r_right) << r_left) | - ((g >> g_right) << g_left) | - ((b >> b_right) << b_left); - for (i = 0; i < bpp; i++) - { - *obptr++ = pixel & 0xff; - pixel >>= 8; - } - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_truecolor_lsb_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - int r_right, r_left, r_prec; - int g_right, g_left, g_prec; - int b_right, b_left, b_prec; - int bpp; - guint32 pixel; - int i; - int dith; - int r1, g1, b1; - const unsigned char *dmp; - - r_right = 8 - image_info->red_prec; - r_left = image_info->red_shift; - r_prec = image_info->red_prec; - g_right = 8 - image_info->green_prec; - g_left = image_info->green_shift; - g_prec = image_info->green_prec; - b_right = 8 - image_info->blue_prec; - b_left = image_info->blue_shift; - b_prec = image_info->blue_prec; - bpp = image_info->bpp; - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - obptr = obuf; - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2; - r1 = r + (dith >> r_prec); - g1 = g + ((252 - dith) >> g_prec); - b1 = b + (dith >> b_prec); - pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) | - (((g1 - (g1 >> g_prec)) >> g_right) << g_left) | - (((b1 - (b1 >> b_prec)) >> b_right) << b_left); - for (i = 0; i < bpp; i++) - { - *obptr++ = pixel & 0xff; - pixel >>= 8; - } - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_truecolor_msb (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - int r_right, r_left; - int g_right, g_left; - int b_right, b_left; - int bpp; - guint32 pixel; - int shift, shift_init; - - r_right = 8 - image_info->red_prec; - r_left = image_info->red_shift; - g_right = 8 - image_info->green_prec; - g_left = image_info->green_shift; - b_right = 8 - image_info->blue_prec; - b_left = image_info->blue_shift; - bpp = image_info->bpp; - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; - shift_init = (bpp - 1) << 3; - for (y = 0; y < height; y++) - { - obptr = obuf; - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - pixel = ((r >> r_right) << r_left) | - ((g >> g_right) << g_left) | - ((b >> b_right) << b_left); - for (shift = shift_init; shift >= 0; shift -= 8) - { - *obptr++ = (pixel >> shift) & 0xff; - } - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_truecolor_msb_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *obuf, *obptr; - int bpl; - unsigned char *bptr, *bp2; - int r, g, b; - int r_right, r_left, r_prec; - int g_right, g_left, g_prec; - int b_right, b_left, b_prec; - int bpp; - guint32 pixel; - int shift, shift_init; - int dith; - int r1, g1, b1; - const unsigned char *dmp; - - r_right = 8 - image_info->red_prec; - r_left = image_info->red_shift; - r_prec = image_info->red_prec; - g_right = 8 - image_info->green_prec; - g_left = image_info->green_shift; - g_prec = image_info->green_prec; - b_right = 8 - image_info->blue_prec; - b_left = image_info->blue_shift; - b_prec = image_info->blue_prec; - bpp = image_info->bpp; - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; - shift_init = (bpp - 1) << 3; - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - obptr = obuf; - bp2 = bptr; - for (x = 0; x < width; x++) - { - r = bp2[0]; - g = bp2[1]; - b = bp2[2]; - dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2; - r1 = r + (dith >> r_prec); - g1 = g + ((252 - dith) >> g_prec); - b1 = b + (dith >> b_prec); - pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) | - (((g1 - (g1 >> g_prec)) >> g_right) << g_left) | - (((b1 - (b1 >> b_prec)) >> b_right) << b_left); - for (shift = shift_init; shift >= 0; shift -= 8) - { - *obptr++ = (pixel >> shift) & 0xff; - } - bp2 += 3; - } - bptr += rowstride; - obuf += bpl; - } -} - -/* This actually works for depths from 3 to 7 */ -static void -xlib_rgb_convert_4 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int dith; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x += 1) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 3; - obptr[0] = colorcube_d[(((r + dith) & 0x100) >> 2) | - (((g + 258 - dith) & 0x100) >> 5) | - (((b + dith) & 0x100) >> 8)]; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -/* This actually works for depths from 3 to 7 */ -static void -xlib_rgb_convert_gray4 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - int shift; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - shift = 9 - image_info->x_visual_info->depth; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - obptr[0] = (g + ((b + r) >> 1)) >> shift; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_gray4_pack (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - int shift; - unsigned char pix0, pix1; - /* todo: this is hardcoded to big-endian. Make endian-agile. */ - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1); - shift = 9 - image_info->x_visual_info->depth; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x += 2) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - pix0 = (g + ((b + r) >> 1)) >> shift; - r = *bp2++; - g = *bp2++; - b = *bp2++; - pix1 = (g + ((b + r) >> 1)) >> shift; - obptr[0] = (pix0 << 4) | pix1; - obptr++; - } - if (width & 1) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - pix0 = (g + ((b + r) >> 1)) >> shift; - obptr[0] = (pix0 << 4); - } - bptr += rowstride; - obuf += bpl; - } -} - -/* This actually works for depths from 3 to 7 */ -static void -xlib_rgb_convert_gray4_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int prec, right; - int gray; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + ax; - prec = image_info->x_visual_info->depth; - right = 8 - prec; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - gray = (g + ((b + r) >> 1)) >> 1; - gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec; - obptr[0] = (gray - (gray >> prec)) >> right; - obptr++; - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_gray4_d_pack (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int prec, right; - int gray; - unsigned char pix0, pix1; - /* todo: this is hardcoded to big-endian. Make endian-agile. */ - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1); - prec = image_info->x_visual_info->depth; - right = 8 - prec; - for (y = 0; y < height; y++) - { - bp2 = bptr; - obptr = obuf; - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - for (x = 0; x < width; x += 2) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - gray = (g + ((b + r) >> 1)) >> 1; - gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec; - pix0 = (gray - (gray >> prec)) >> right; - r = *bp2++; - g = *bp2++; - b = *bp2++; - gray = (g + ((b + r) >> 1)) >> 1; - gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec; - pix1 = (gray - (gray >> prec)) >> right; - obptr[0] = (pix0 << 4) | pix1; - obptr++; - } - if (width & 1) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - gray = (g + ((b + r) >> 1)) >> 1; - gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec; - pix0 = (gray - (gray >> prec)) >> right; - obptr[0] = (pix0 << 4); - } - bptr += rowstride; - obuf += bpl; - } -} - -static void -xlib_rgb_convert_1 (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - int x, y; - int bpl; - unsigned char *obuf, *obptr; - unsigned char *bptr, *bp2; - int r, g, b; - const unsigned char *dmp; - int dith; - unsigned char byte; - - bptr = buf; - bpl = image->bytes_per_line; - obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 3); - byte = 0; /* unnecessary, but it keeps gcc from complaining */ - for (y = 0; y < height; y++) - { - dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; - bp2 = bptr; - obptr = obuf; - for (x = 0; x < width; x++) - { - r = *bp2++; - g = *bp2++; - b = *bp2++; - dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 4) | 4; - byte += byte + (r + g + g + b + dith > 1020); - if ((x & 7) == 7) - { - obptr[0] = byte; - obptr++; - } - } - if (x & 7) - obptr[0] = byte << (8 - (x & 7)); - bptr += rowstride; - obuf += bpl; - } -} - -/* Returns a pointer to the stage buffer. */ -static unsigned char * -xlib_rgb_ensure_stage (void) -{ - if (image_info->stage_buf == NULL) - image_info->stage_buf = malloc (IMAGE_HEIGHT * STAGE_ROWSTRIDE); - return image_info->stage_buf; -} - -/* This is slow. Speed me up, please. */ -static void -xlib_rgb_32_to_stage (unsigned char *buf, int rowstride, int width, int height) -{ - int x, y; - unsigned char *pi_start, *po_start; - unsigned char *pi, *po; - - pi_start = buf; - po_start = xlib_rgb_ensure_stage (); - for (y = 0; y < height; y++) - { - pi = pi_start; - po = po_start; - for (x = 0; x < width; x++) - { - *po++ = *pi++; - *po++ = *pi++; - *po++ = *pi++; - pi++; - } - pi_start += rowstride; - po_start += STAGE_ROWSTRIDE; - } -} - -/* Generic 32bit RGB conversion function - convert to 24bit packed, then - go from there. */ -static void -xlib_rgb_convert_32_generic (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - xlib_rgb_32_to_stage (buf, rowstride, width, height); - - (*image_info->conv) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -/* Generic 32bit RGB conversion function - convert to 24bit packed, then - go from there. */ -static void -xlib_rgb_convert_32_generic_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - xlib_rgb_32_to_stage (buf, rowstride, width, height); - - (*image_info->conv_d) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -/* This is slow. Speed me up, please. */ -static void -xlib_rgb_gray_to_stage (unsigned char *buf, int rowstride, int width, int height) -{ - int x, y; - unsigned char *pi_start, *po_start; - unsigned char *pi, *po; - unsigned char gray; - - pi_start = buf; - po_start = xlib_rgb_ensure_stage (); - for (y = 0; y < height; y++) - { - pi = pi_start; - po = po_start; - for (x = 0; x < width; x++) - { - gray = *pi++; - *po++ = gray; - *po++ = gray; - *po++ = gray; - } - pi_start += rowstride; - po_start += STAGE_ROWSTRIDE; - } -} - -/* Generic gray conversion function - convert to 24bit packed, then go - from there. */ -static void -xlib_rgb_convert_gray_generic (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - xlib_rgb_gray_to_stage (buf, rowstride, width, height); - - (*image_info->conv) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -static void -xlib_rgb_convert_gray_generic_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - xlib_rgb_gray_to_stage (buf, rowstride, width, height); - - (*image_info->conv_d) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -/* Render grayscale using indexed method. */ -static void -xlib_rgb_convert_gray_cmap (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - (*image_info->conv_indexed) (image, ax, ay, width, height, - buf, rowstride, - x_align, y_align, image_info->gray_cmap); -} - -#if 0 -static void -xlib_rgb_convert_gray_cmap_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - (*image_info->conv_indexed_d) (image, ax, ay, width, height, - buf, rowstride, - x_align, y_align, image_info->gray_cmap); -} -#endif - -/* This is slow. Speed me up, please. */ -static void -xlib_rgb_indexed_to_stage (unsigned char *buf, int rowstride, int width, int height, - XlibRgbCmap *cmap) -{ - int x, y; - unsigned char *pi_start, *po_start; - unsigned char *pi, *po; - int rgb; - - pi_start = buf; - po_start = xlib_rgb_ensure_stage (); - for (y = 0; y < height; y++) - { - pi = pi_start; - po = po_start; - for (x = 0; x < width; x++) - { - rgb = cmap->colors[*pi++]; - *po++ = rgb >> 16; - *po++ = (rgb >> 8) & 0xff; - *po++ = rgb & 0xff; - } - pi_start += rowstride; - po_start += STAGE_ROWSTRIDE; - } -} - -/* Generic gray conversion function - convert to 24bit packed, then go - from there. */ -static void -xlib_rgb_convert_indexed_generic (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, XlibRgbCmap *cmap) -{ - xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap); - - (*image_info->conv) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -static void -xlib_rgb_convert_indexed_generic_d (XImage *image, - int ax, int ay, int width, int height, - unsigned char *buf, int rowstride, - int x_align, int y_align, - XlibRgbCmap *cmap) -{ - xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap); - - (*image_info->conv_d) (image, ax, ay, width, height, - image_info->stage_buf, STAGE_ROWSTRIDE, - x_align, y_align, cmap); -} - -/* Select a conversion function based on the visual and a - representative image. */ -static void -xlib_rgb_select_conv (XImage *image, ByteOrder byte_order) -{ - int depth, byterev; - int vtype; /* visual type */ - int bpp; /* bits per pixel - from the visual */ - guint32 red_mask, green_mask, blue_mask; - XlibRgbConvFunc conv, conv_d; - XlibRgbConvFunc conv_32, conv_32_d; - XlibRgbConvFunc conv_gray, conv_gray_d; - XlibRgbConvFunc conv_indexed, conv_indexed_d; - Bool mask_rgb, mask_bgr; - - depth = image_info->x_visual_info->depth; - bpp = image->bits_per_pixel; - if (xlib_rgb_verbose) - printf ("Chose visual 0x%x, image bpp=%d, %s first\n", - (int)image_info->x_visual_info->visual->visualid, - bpp, byte_order == LSB_FIRST ? "lsb" : "msb"); - -#if G_BYTE_ORDER == G_BIG_ENDIAN - byterev = (byte_order == LSB_FIRST); -#else - byterev = (byte_order == MSB_FIRST); -#endif - - vtype = image_info->x_visual_info->class; - if (vtype == DirectColor) - vtype = TrueColor; - - red_mask = image_info->x_visual_info->red_mask; - green_mask = image_info->x_visual_info->green_mask; - blue_mask = image_info->x_visual_info->blue_mask; - - mask_rgb = red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff; - mask_bgr = red_mask == 0xff && green_mask == 0xff00 && blue_mask == 0xff0000; - - conv = NULL; - conv_d = NULL; - - conv_32 = xlib_rgb_convert_32_generic; - conv_32_d = xlib_rgb_convert_32_generic_d; - - conv_gray = xlib_rgb_convert_gray_generic; - conv_gray_d = xlib_rgb_convert_gray_generic_d; - - conv_indexed = xlib_rgb_convert_indexed_generic; - conv_indexed_d = xlib_rgb_convert_indexed_generic_d; - - image_info->dith_default = FALSE; - - if (image_info->bitmap) - conv = xlib_rgb_convert_1; - else if (bpp == 16 && depth == 16 && !byterev && - red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f) - { - conv = xlib_rgb_convert_565; - conv_d = xlib_rgb_convert_565_d; - conv_gray = xlib_rgb_convert_565_gray; - xlib_rgb_preprocess_dm_565 (); - } - else if (bpp == 16 && depth == 16 && - vtype == TrueColor&& byterev && - red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f) - conv = xlib_rgb_convert_565_br; - - else if (bpp == 16 && depth == 15 && - vtype == TrueColor && !byterev && - red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f) - conv = xlib_rgb_convert_555; - - else if (bpp == 16 && depth == 15 && - vtype == TrueColor && byterev && - red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f) - conv = xlib_rgb_convert_555_br; - - /* I'm not 100% sure about the 24bpp tests - but testing will show*/ - else if (bpp == 24 && depth == 24 && vtype == TrueColor && - ((mask_rgb && byte_order == LSB_FIRST) || - (mask_bgr && byte_order == MSB_FIRST))) - conv = xlib_rgb_convert_888_lsb; - else if (bpp == 24 && depth == 24 && vtype == TrueColor && - ((mask_rgb && byte_order == MSB_FIRST) || - (mask_bgr && byte_order == LSB_FIRST))) - conv = xlib_rgb_convert_888_msb; -#if G_BYTE_ORDER == G_BIG_ENDIAN - else if (bpp == 32 && depth == 24 && vtype == TrueColor && - (mask_rgb && byte_order == LSB_FIRST)) - conv = xlib_rgb_convert_0888_br; - else if (bpp == 32 && depth == 24 && vtype == TrueColor && - (mask_rgb && byte_order == MSB_FIRST)) - conv = xlib_rgb_convert_0888; - else if (bpp == 32 && depth == 24 && vtype == TrueColor && - (mask_bgr && byte_order == MSB_FIRST)) - conv = xlib_rgb_convert_8880_br; -#else - else if (bpp == 32 && depth == 24 && vtype == TrueColor && - (mask_rgb && byte_order == MSB_FIRST)) - conv = xlib_rgb_convert_0888_br; - else if (bpp == 32 && (depth == 32 || depth == 24) && vtype == TrueColor && - (mask_rgb && byte_order == LSB_FIRST)) - conv = xlib_rgb_convert_0888; - else if (bpp == 32 && depth == 24 && vtype == TrueColor && - (mask_bgr && byte_order == LSB_FIRST)) - conv = xlib_rgb_convert_8880_br; -#endif - - else if (vtype == TrueColor && byte_order == LSB_FIRST) - { - conv = xlib_rgb_convert_truecolor_lsb; - conv_d = xlib_rgb_convert_truecolor_lsb_d; - } - else if (vtype == TrueColor && byte_order == MSB_FIRST) - { - conv = xlib_rgb_convert_truecolor_msb; - conv_d = xlib_rgb_convert_truecolor_msb_d; - } - else if (bpp == 8 && depth == 8 && (vtype == PseudoColor -#ifdef ENABLE_GRAYSCALE - || vtype == GrayScale -#endif - )) - { - image_info->dith_default = TRUE; - conv = xlib_rgb_convert_8; - if (vtype != GrayScale) - { - if (image_info->nred_shades == 6 && - image_info->ngreen_shades == 6 && - image_info->nblue_shades == 6) - conv_d = xlib_rgb_convert_8_d666; - else - conv_d = xlib_rgb_convert_8_d; - } - conv_indexed = xlib_rgb_convert_8_indexed; - conv_gray = xlib_rgb_convert_gray_cmap; - } - else if (bpp == 8 && depth == 8 && (vtype == StaticGray -#ifdef not_ENABLE_GRAYSCALE - || vtype == GrayScale -#endif - )) - { - conv = xlib_rgb_convert_gray8; - conv_gray = xlib_rgb_convert_gray8_gray; - } - else if (bpp == 8 && depth < 8 && depth >= 2 && - (vtype == StaticGray - || vtype == GrayScale)) - { - conv = xlib_rgb_convert_gray4; - conv_d = xlib_rgb_convert_gray4_d; - } - else if (bpp == 8 && depth < 8 && depth >= 3) - { - conv = xlib_rgb_convert_4; - } - else if (bpp == 4 && depth <= 4 && depth >= 2 && - (vtype == StaticGray - || vtype == GrayScale)) - { - conv = xlib_rgb_convert_gray4_pack; - conv_d = xlib_rgb_convert_gray4_d_pack; - } - - if (conv_d == NULL) - conv_d = conv; - - image_info->conv = conv; - image_info->conv_d = conv_d; - - image_info->conv_32 = conv_32; - image_info->conv_32_d = conv_32_d; - - image_info->conv_gray = conv_gray; - image_info->conv_gray_d = conv_gray_d; - - image_info->conv_indexed = conv_indexed; - image_info->conv_indexed_d = conv_indexed_d; -} - -static int horiz_idx; -static int horiz_y = IMAGE_HEIGHT; -static int vert_idx; -static int vert_x = IMAGE_WIDTH; -static int tile_idx; -static int tile_x = IMAGE_WIDTH; -static int tile_y1 = IMAGE_HEIGHT; -static int tile_y2 = IMAGE_HEIGHT; - -#ifdef VERBOSE -static int sincelast; -#endif - -/* Defining NO_FLUSH can cause inconsistent screen updates, but is useful - for performance evaluation. */ - -#undef NO_FLUSH - -static int -xlib_rgb_alloc_scratch_image (void) -{ - if (static_image_idx == N_IMAGES) - { -#ifndef NO_FLUSH - XFlush(image_info->display); -#endif -#ifdef VERBOSE - printf ("flush, %d puts since last flush\n", sincelast); - sincelast = 0; -#endif - static_image_idx = 0; - horiz_y = IMAGE_HEIGHT; - vert_x = IMAGE_WIDTH; - tile_x = IMAGE_WIDTH; - tile_y1 = tile_y2 = IMAGE_HEIGHT; - } - return static_image_idx++; -} - -static XImage * -xlib_rgb_alloc_scratch (int width, int height, int *ax, int *ay) -{ - XImage *image; - int idx; - - if (width >= (IMAGE_WIDTH >> 1)) - { - if (height >= (IMAGE_HEIGHT >> 1)) - { - idx = xlib_rgb_alloc_scratch_image (); - *ax = 0; - *ay = 0; - } - else - { - if (height + horiz_y > IMAGE_HEIGHT) - { - horiz_idx = xlib_rgb_alloc_scratch_image (); - horiz_y = 0; - } - idx = horiz_idx; - *ax = 0; - *ay = horiz_y; - horiz_y += height; - } - } - else - { - if (height >= (IMAGE_HEIGHT >> 1)) - { - if (width + vert_x > IMAGE_WIDTH) - { - vert_idx = xlib_rgb_alloc_scratch_image (); - vert_x = 0; - } - idx = vert_idx; - *ax = vert_x; - *ay = 0; - /* using 3 and -4 would be slightly more efficient on 32-bit machines - with > 1bpp displays */ - vert_x += (width + 7) & -8; - } - else - { - if (width + tile_x > IMAGE_WIDTH) - { - tile_y1 = tile_y2; - tile_x = 0; - } - if (height + tile_y1 > IMAGE_HEIGHT) - { - tile_idx = xlib_rgb_alloc_scratch_image (); - tile_x = 0; - tile_y1 = 0; - tile_y2 = 0; - } - if (height + tile_y1 > tile_y2) - tile_y2 = height + tile_y1; - idx = tile_idx; - *ax = tile_x; - *ay = tile_y1; - tile_x += (width + 7) & -8; - } - } - image = static_image[idx]; -#ifdef VERBOSE - printf ("index %d, x %d, y %d (%d x %d)\n", idx, *ax, *ay, width, height); - sincelast++; -#endif - return image; -} - -static void -xlib_draw_rgb_image_core (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - unsigned char *buf, - int pixstride, - int rowstride, - XlibRgbConvFunc conv, - XlibRgbCmap *cmap, - int xdith, - int ydith) -{ - int ay, ax; - int xs0, ys0; - XImage *image; - int width1, height1; - unsigned char *buf_ptr; - - if (image_info->bitmap) - { - if (image_info->own_gc == 0) - { - XColor color; - - image_info->own_gc = XCreateGC(image_info->display, - drawable, - 0, NULL); - color.pixel = WhitePixel(image_info->display, - image_info->screen_num); - XSetForeground(image_info->display, image_info->own_gc, color.pixel); - color.pixel = BlackPixel(image_info->display, - image_info->screen_num); - XSetBackground(image_info->display, image_info->own_gc, color.pixel); - } - gc = image_info->own_gc; - } - for (ay = 0; ay < height; ay += IMAGE_HEIGHT) - { - height1 = MIN (height - ay, IMAGE_HEIGHT); - for (ax = 0; ax < width; ax += IMAGE_WIDTH) - { - width1 = MIN (width - ax, IMAGE_WIDTH); - buf_ptr = buf + ay * rowstride + ax * pixstride; - - image = xlib_rgb_alloc_scratch (width1, height1, &xs0, &ys0); - - conv (image, xs0, ys0, width1, height1, buf_ptr, rowstride, - x + ax + xdith, y + ay + ydith, cmap); - -#ifndef DONT_ACTUALLY_DRAW - XPutImage(image_info->display, drawable, gc, image, - xs0, ys0, x + ax, y + ay, (unsigned int)width1, (unsigned int)height1); -#endif - } - } -} - - -/** - * xlib_draw_rgb_image: - * @drawable: Destination drawable. - * @gc: A graphic context. - * @x: Leftmost coordinate of the destination rectangle. - * @y: Upper coordinate of the destination rectangle. - * @width: Width of the destination rectangle, in pixels. - * @height: Height of the destination rectangle, in pixels. - * @dith: Dithering method to use. - * @rgb_buf: Pointer to the pixel in the RGB buffer that corresponds to the - * upper-left corner of the rectangular region to render. - * @rowstride: Offset between pixel rows in the RGB buffer, in bytes. - * - * Renders an RGB buffer to a drawable. Pixels are specified as RGB triplets - * with 8 bits per channel. An image will thus look like an RGBRGBRGBRGB - * sequence of 8-bit values. This function does not let you specify dither - * offsets; applications that need to render partial regions of a buffer to - * build the final image should use xlib_draw_rgb_image_dithalign() instead. - **/ -void -xlib_draw_rgb_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *rgb_buf, - int rowstride) -{ - if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && - !image_info->dith_default)) - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - rgb_buf, 3, rowstride, image_info->conv, NULL, - 0, 0); - else - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - rgb_buf, 3, rowstride, image_info->conv_d, NULL, - 0, 0); -} - -/** - * xlib_draw_rgb_image_dithalign: - * @drawable: Destination drawable. - * @gc: A graphic context. - * @x: Leftmost coordinate of the destination rectangle. - * @y: Upper coordinate of the destination rectangle. - * @width: Width of the destination rectangle, in pixels. - * @height: Height of the destination rectangle, in pixels. - * @dith: Dithering method to use. - * @rgb_buf: Pointer to the pixel in the RGB buffer that corresponds to the - * upper-left corner of the rectangular region to render. - * @rowstride: Offset between pixel rows in the RGB buffer, in bytes. - * @xdith: X offset for the dither mask. - * @ydith: Y offset for the dither mask. - * - * Renders an RGB buffer to a drawable. Pixels are specified as RGB triplets - * with 8 bits per channel. An image will thus look like an RGBRGBRGBRGB - * sequence of 8-bit values. This function lets you specify a pair of dither - * offsets. It should be used when you need to render regions of an RGB buffer - * separately to form the final image; the dither offsets let you align the - * dither mask appropriately. - **/ -void -xlib_draw_rgb_image_dithalign (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *rgb_buf, - int rowstride, - int xdith, - int ydith) -{ - if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && - !image_info->dith_default)) - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - rgb_buf, 3, rowstride, image_info->conv, NULL, - xdith, ydith); - else - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - rgb_buf, 3, rowstride, image_info->conv_d, NULL, - xdith, ydith); -} - -/** - * xlib_draw_rgb_32_image: - * @drawable: Destination drawable. - * @gc: A graphic context. - * @x: Leftmost coordinate of the destination rectangle. - * @y: Upper coordinate of the destination rectangle. - * @width: Width of the destination rectangle, in pixels. - * @height: Height of the destination rectangle, in pixels. - * @dith: Dithering method to use. - * @buf: Pointer to the pixel in the RGB buffer that corresponds to the - * upper-left corner of the rectangular region to render. - * @rowstride: Offset between pixel rows in the RGB buffer, in bytes. - * - * This function is analogous to xlib_draw_rgb_image(), but it lets you use - * 32-bit RGB buffers with pixels specified as 0xRRGGBB00. The - * least-significant 8 bits are actually discarded. This function can lead to - * faster results than xlib_draw_rgb_image() since the pixels are aligned on - * 32-bit boundaries. - **/ -void -xlib_draw_rgb_32_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride) -{ - if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && - !image_info->dith_default)) - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 4, rowstride, - image_info->conv_32, NULL, 0, 0); - else - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 4, rowstride, - image_info->conv_32_d, NULL, 0, 0); -} - -static void -xlib_rgb_make_gray_cmap (XlibRgbInfo *info) -{ - guint32 rgb[256]; - int i; - - for (i = 0; i < 256; i++) - rgb[i] = (i << 16) | (i << 8) | i; - info->gray_cmap = xlib_rgb_cmap_new (rgb, 256); -} - -/** - * xlib_draw_gray_image: - * @drawable: Destination drawable. - * @gc: A graphic context. - * @x: Leftmost coordinate of the destination rectangle. - * @y: Upper coordinate of the destination rectangle. - * @width: Width of the destination rectangle, in pixels. - * @height: Height of thd destination rectangle, in pixels. - * @dith: Dithering method to use. - * @buf: Pointer to the pixel in the grayscale buffer that corresponds to the - * upper-left corner of the rectangular region to render. - * @rowstride: Offset between pixel rows in the grayscale buffer, in pixels. - * - * Renders a grayscale buffer to a drawable. Pixels are specified as 8-bit - * intensity values. An image will thus look as a GGGGGG sequence of 8-bit - * values. - **/ -void -xlib_draw_gray_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride) -{ - if (image_info->bpp == 1 && - image_info->gray_cmap == NULL && - (image_info->x_visual_info->class == PseudoColor || - image_info->x_visual_info->class == GrayScale)) - xlib_rgb_make_gray_cmap (image_info); - - if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && - !image_info->dith_default)) - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 1, rowstride, - image_info->conv_gray, NULL, 0, 0); - else - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 1, rowstride, - image_info->conv_gray_d, NULL, 0, 0); -} - -/** - * xlib_rgb_cmap_new: - * @colors: FIXME - * @n_colors: FIXME - * - * FIXME - * - * Return value: FIXME - **/ -XlibRgbCmap * -xlib_rgb_cmap_new (guint32 *colors, int n_colors) -{ - XlibRgbCmap *cmap; - int i, j; - guint32 rgb; - - if (n_colors < 0) - return NULL; - if (n_colors > 256) - return NULL; - cmap = malloc(sizeof(XlibRgbCmap)); - memcpy (cmap->colors, colors, n_colors * sizeof(guint32)); - if (image_info->bpp == 1 && - (image_info->x_visual_info->class == PseudoColor || - image_info->x_visual_info->class == GrayScale)) - for (i = 0; i < n_colors; i++) - { - rgb = colors[i]; - j = ((rgb & 0xf00000) >> 12) | - ((rgb & 0xf000) >> 8) | - ((rgb & 0xf0) >> 4); -#ifdef VERBOSE - printf ("%d %x %x %d\n", i, j, colorcube[j]); -#endif - cmap->lut[i] = colorcube[j]; - } - return cmap; -} - -/** - * xlib_rgb_cmap_free: - * @cmap: An XlibRGB colormap. - * - * Frees an XlibRGB colormap. - **/ -void -xlib_rgb_cmap_free (XlibRgbCmap *cmap) -{ - free (cmap); -} - -/** - * xlib_draw_indexed_image: - * @drawable: FIXME - * @gc: FIXME - * @x: FIXME - * @y: FIXME - * @width: FIXME - * @height: FIXME - * @dith: FIXME - * @buf: FIXME - * @rowstride: FIXME - * @cmap: FIXME - * - * FIXME - **/ -void -xlib_draw_indexed_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride, - XlibRgbCmap *cmap) -{ - if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && - !image_info->dith_default)) - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 1, rowstride, - image_info->conv_indexed, cmap, 0, 0); - else - xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, - buf, 1, rowstride, - image_info->conv_indexed_d, cmap, 0, 0); -} - -/** - * xlib_rgb_ditherable: - * - * Queries whether XlibRGB supports dithering for its chosen visual. - * - * Return value: TRUE if dithering can be performed for the visual that XlibRGB - * is using, FALSE otherwise. - **/ -Bool -xlib_rgb_ditherable (void) -{ - return (image_info->conv != image_info->conv_d); -} - -/** - * xlib_rgb_get_cmap: - * - * Queries the X colormap that XlibRGB is using. - * - * Return value: An X colormap. - **/ -Colormap -xlib_rgb_get_cmap (void) -{ - /* xlib_rgb_init (); */ - if (image_info) - return image_info->cmap; - else - return 0; -} - -/** - * xlib_rgb_get_visual: - * - * Queries the visual that XlibRGB is using. - * - * Return value: An X visual. - **/ -Visual * -xlib_rgb_get_visual (void) -{ - /* xlib_rgb_init (); */ - if (image_info) - return image_info->x_visual_info->visual; - else - return NULL; -} - -/** - * xlib_rgb_get_visual_info: - * - * Queries the visual info structure for the visual that XlibRGB is using. - * - * Return value: An XVisualInfo structure. - **/ -XVisualInfo * -xlib_rgb_get_visual_info (void) -{ - /* xlib_rgb_init (); */ - if (image_info) - return image_info->x_visual_info; - else - return NULL; -} - -/** - * xlib_rgb_get_depth: - * - * Queries the depth of the visual that XlibRGB is using. - * - * Return value: Bit depth. - **/ -int -xlib_rgb_get_depth (void) -{ - XVisualInfo * v = xlib_rgb_get_visual_info(); - - if (v) - { - return v->depth; - } - - return 0; -} - -/** - * xlib_rgb_get_display: - * - * Queries the X display that XlibRGB is using. - * - * Return value: An X display. - **/ -Display * -xlib_rgb_get_display (void) -{ - if (image_info) - return image_info->display; - - return NULL; -} - -/** - * xlib_rgb_get_screen: - * - * Queries the screen that XlibRGB is using. - * - * Return value: An X screen. - **/ -Screen * -xlib_rgb_get_screen (void) -{ - if (image_info) - return image_info->screen; - - return NULL; -} diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h deleted file mode 100644 index 689d4f75f..000000000 --- a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h +++ /dev/null @@ -1,233 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "MPL"); you may not use this file except in - * compliance with the MPL. You may obtain a copy of the MPL at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the MPL is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL - * for the specific language governing rights and limitations under the - * MPL. - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU Library General Public License (the "LGPL"), in - * which case the provisions of the LGPL are applicable instead of - * those above. If you wish to allow use of your version of this file - * only under the terms of the LGPL and not to allow others to use - * your version of this file under the MPL, indicate your decision by - * deleting the provisions above and replace them with the notice and - * other provisions required by the LGPL. If you do not delete the - * provisions above, a recipient may use your version of this file - * under either the MPL or the LGPL. - */ - -/* - * This code is derived from GdkRgb. - * For more information on GdkRgb, see http://www.levien.com/gdkrgb/ - * Raph Levien - */ - -/* Ported by Christopher Blizzard to Xlib. With permission from the - * original authors of this file, the contents of this file are also - * redistributable under the terms of the Mozilla Public license. For - * information about the Mozilla Public License, please see the - * license information at http://www.mozilla.org/MPL/ - */ - -/* This code is copyright the following authors: - * Raph Levien - * Manish Singh - * Tim Janik - * Peter Mattis - * Spencer Kimball - * Josh MacDonald - * Christopher Blizzard - * Owen Taylor - * Shawn T. Amundson -*/ - - -#ifndef __XLIB_RGB_H__ -#define __XLIB_RGB_H__ - -#include - -G_BEGIN_DECLS - -#include -#include - -/** - * XlibRgbCmap: - * @colors: FIXME. - * @lut: FIXME. - * - * FIXME: Describe this. - */ -typedef struct _XlibRgbCmap XlibRgbCmap; -struct _XlibRgbCmap { - unsigned int colors[256]; - unsigned char lut[256]; /* for 8-bit modes */ -}; - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_init (Display *display, Screen *screen); -_GDK_PIXBUF_EXTERN -void -xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth); - -_GDK_PIXBUF_EXTERN -unsigned long -xlib_rgb_xpixel_from_rgb (guint32 rgb); - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_gc_set_foreground (GC gc, guint32 rgb); - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_gc_set_background (GC gc, guint32 rgb); - -/** - * XlibRgbDither: - * @XLIB_RGB_DITHER_NONE: Specifies no dithering. - * @XLIB_RGB_DITHER_NORMAL: Specifies dithering only on pseudocolor - * displays. - * @XLIB_RGB_DITHER_MAX: Specifies dithering on high color displays. - * - * These values are used to specify which dithering method should be - * used. XLIB_RGB_DITHER_NONE will use no dithering - * and simply map the colors in an RGB buffer to the closest colors - * that the display can provide. - * XLIB_RGB_DITHER_NORMAL will provide dithering - * only on pseudocolor displays. - * XLIB_RGB_DITHER_MAX will provide dithering on - * pseudocolor and 16-bit truecolor or “high color” - * displays. - */ -typedef enum -{ - XLIB_RGB_DITHER_NONE, - XLIB_RGB_DITHER_NORMAL, - XLIB_RGB_DITHER_MAX -} XlibRgbDither; - -_GDK_PIXBUF_EXTERN -void -xlib_draw_rgb_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *rgb_buf, - int rowstride); - -_GDK_PIXBUF_EXTERN -void -xlib_draw_rgb_image_dithalign (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *rgb_buf, - int rowstride, - int xdith, - int ydith); - -_GDK_PIXBUF_EXTERN -void -xlib_draw_rgb_32_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride); - -_GDK_PIXBUF_EXTERN -void -xlib_draw_gray_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride); - -_GDK_PIXBUF_EXTERN -XlibRgbCmap * -xlib_rgb_cmap_new (guint32 *colors, int n_colors); - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_cmap_free (XlibRgbCmap *cmap); - -_GDK_PIXBUF_EXTERN -void -xlib_draw_indexed_image (Drawable drawable, - GC gc, - int x, - int y, - int width, - int height, - XlibRgbDither dith, - unsigned char *buf, - int rowstride, - XlibRgbCmap *cmap); - -/* Below are some functions which are primarily useful for debugging - and experimentation. */ -_GDK_PIXBUF_EXTERN -Bool -xlib_rgb_ditherable (void); - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_set_verbose (Bool verbose); - -/* experimental colormap stuff */ -_GDK_PIXBUF_EXTERN -void -xlib_rgb_set_install (Bool install); - -_GDK_PIXBUF_EXTERN -void -xlib_rgb_set_min_colors (int min_colors); - -_GDK_PIXBUF_EXTERN -Colormap -xlib_rgb_get_cmap (void); - -_GDK_PIXBUF_EXTERN -Visual * -xlib_rgb_get_visual (void); - -_GDK_PIXBUF_EXTERN -XVisualInfo * -xlib_rgb_get_visual_info (void); - -_GDK_PIXBUF_EXTERN -int -xlib_rgb_get_depth (void); - -_GDK_PIXBUF_EXTERN -Display * -xlib_rgb_get_display (void); - -_GDK_PIXBUF_EXTERN -Screen * -xlib_rgb_get_screen (void); - -G_END_DECLS - -#endif /* __XLIB_RGB_H__ */ diff --git a/contrib/gdk-pixbuf-xlib/meson.build b/contrib/gdk-pixbuf-xlib/meson.build deleted file mode 100644 index 25fbde41c..000000000 --- a/contrib/gdk-pixbuf-xlib/meson.build +++ /dev/null @@ -1,43 +0,0 @@ -gdkpixbuf_xlib_sources = [ - 'gdk-pixbuf-xlib.c', - 'gdk-pixbuf-xlib-render.c', - 'gdk-pixbuf-xlib-drawable.c', - 'gdk-pixbuf-xlibrgb.c', -] - -gdkpixbuf_xlib_headers = [ - 'gdk-pixbuf-xlib.h', - 'gdk-pixbuf-xlibrgb.h', -] - -gdkpixbuf_xlib_inc = include_directories('.') - -gdkpixbuf_xlib_api_path = join_paths('gdk-pixbuf-@0@'.format(gdk_pixbuf_api_version), 'gdk-pixbuf-xlib') - -install_headers(gdkpixbuf_xlib_headers, subdir: gdkpixbuf_xlib_api_path) - -gdkpixbuf_xlib = library('gdk_pixbuf_xlib-2.0', - gdkpixbuf_xlib_sources, - soversion: soversion, - version: libversion, - c_args: common_cflags + gdk_pixbuf_cflags + [ - '-DSTDC_HEADERS', - ], - link_args: common_ldflags, - include_directories: [ - root_inc, - include_directories('..') - ], - dependencies: gdk_pixbuf_deps + [ gdkpixbuf_dep, x11_dep ], - install: true) - -pkgconfig.generate( - name: 'GdkPixbuf Xlib', - description: 'GdkPixbuf rendering for Xlib', - version: meson.project_version(), - libraries: gdkpixbuf_xlib, - requires: 'gdk-pixbuf-2.0', - filebase: 'gdk-pixbuf-xlib-2.0', - subdirs: gdk_pixbuf_api_name, - install_dir: join_paths(gdk_pixbuf_libdir, 'pkgconfig'), -) diff --git a/docs/gdk-pixbuf-sections.txt b/docs/gdk-pixbuf-sections.txt index b248c8bf1..d3c15237a 100644 --- a/docs/gdk-pixbuf-sections.txt +++ b/docs/gdk-pixbuf-sections.txt @@ -376,60 +376,3 @@ GDK_PIXBUF_ANIMATION_CLASS gdk_pixbuf_format_get_type - -
-gdk-pixbuf-xlib-init -gdk_pixbuf_xlib_init -gdk_pixbuf_xlib_init_with_depth -
- -
-gdk-pixbuf-xlib-rendering -gdk_pixbuf_xlib_render_threshold_alpha -gdk_pixbuf_xlib_render_to_drawable -gdk_pixbuf_xlib_render_to_drawable_alpha -gdk_pixbuf_xlib_render_pixmap_and_mask -
- -
-gdk-pixbuf-xlib-from-drawables -gdk_pixbuf_xlib_get_from_drawable -
- -
-gdk-pixbuf-xlib-rgb -XlibRgbCmap -XlibRgbDither -xlib_rgb_init -xlib_rgb_init_with_depth -xlib_rgb_xpixel_from_rgb -xlib_rgb_gc_set_foreground -xlib_rgb_gc_set_background -xlib_draw_rgb_image -xlib_draw_rgb_image_dithalign -xlib_draw_rgb_32_image -xlib_draw_gray_image -xlib_rgb_cmap_new -xlib_rgb_cmap_free -xlib_draw_indexed_image -xlib_rgb_ditherable -xlib_rgb_set_verbose -xlib_rgb_set_install -xlib_rgb_set_min_colors -xlib_rgb_get_cmap -xlib_rgb_get_visual -xlib_rgb_get_visual_info -xlib_rgb_get_depth -xlib_rgb_get_display -xlib_rgb_get_screen - -Bool -Colormap -Display -Drawable -GC -Pixmap -Screen -Visual -
- diff --git a/docs/gdk-pixbuf.xml b/docs/gdk-pixbuf.xml index 84454f5c2..f1e0db018 100644 --- a/docs/gdk-pixbuf.xml +++ b/docs/gdk-pixbuf.xml @@ -90,14 +90,6 @@ - - Xlib integration (deprecated) - - - - - - GDK integration (deprecated) diff --git a/docs/meson.build b/docs/meson.build index 175380e6a..c286ece36 100644 --- a/docs/meson.build +++ b/docs/meson.build @@ -21,7 +21,6 @@ private_headers = [ 'gdk-pixbuf-marshal.h', 'gdk-pixbuf-private.h', 'gdk-pixbuf-scaled-anim.h', - 'gdk-pixbuf-xlib-private.h', 'io-ani-animation.h', 'io-gdip-animation.h', 'io-gdip-native.h', @@ -33,16 +32,11 @@ private_headers = [ 'lzw.h', ] -if not get_option('x11') - private_headers += 'contrib' -endif - if get_option('docs') gnome.gtkdoc('gdk-pixbuf', main_xml: 'gdk-pixbuf.xml', src_dir: [ gdk_pixbuf_inc, - gdkpixbuf_xlib_inc, ], dependencies: gdkpixbuf_dep, gobject_typesfile: 'gdk-pixbuf.types', diff --git a/meson.build b/meson.build index 7871fb23c..e423944bc 100644 --- a/meson.build +++ b/meson.build @@ -407,12 +407,6 @@ gnome = import('gnome') subdir('gdk-pixbuf') -gdkpixbuf_xlib_inc = [] -if get_option('x11') - x11_dep = dependency('x11') - subdir('contrib/gdk-pixbuf-xlib') -endif - # i18n subdir('po') @@ -455,7 +449,6 @@ summary = [ ' documentation: @0@'.format(get_option('docs')), ' man pages: @0@'.format(get_option('man')), ' introspection: @0@'.format(get_option('gir')), - ' x11: @0@'.format(get_option('x11')), ' installed tests: @0@'.format(get_option('installed_tests')), ' relocatable: @0@'.format(get_option('relocatable')), '', diff --git a/meson_options.txt b/meson_options.txt index a7c33a869..1add5a86b 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -14,10 +14,6 @@ option('jasper', description: 'Enable JPEG2000 loader (requires libjasper)', type: 'boolean', value: false) -option('x11', - description: 'Enable X11 support (requires libX11)', - type: 'boolean', - value: true) option('builtin_loaders', description: 'Comma-separated list of loaders to build into gdk-pixbuf, or "none", or "all" to build all buildable loaders into gdk-pixbuf', type: 'string', -- cgit v1.2.1