* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser 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.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
Raph Levien <raph@acm.org>
*/
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
#include <math.h>
-#include <stdio.h>
+
+#if HAVE_CONFIG_H
+# include <config.h>
+# if STDC_HEADERS
+# include <stdio.h>
+# include <stdlib.h>
+# include <string.h>
+# endif
+#else
+# include <stdio.h>
+# include <stdlib.h>
+#endif
+
#define ENABLE_GRAYSCALE
-#include "../config.h"
-#include "gdk/gdk.h"
-#include "gdk/gdkprivate.h"
+#ifdef GDK_RGB_STANDALONE
+
+/* Compiling as a standalone module (i.e. with Gtk 1.0) */
+/* gtk/gtk.h is already included in gdkrgbstub.c */
+#include "config.h"
+#include <gdk/gdkprivate.h>
+
+#else
+
+/* Compiling as a part of Gtk 1.1 or later */
+#include "config.h"
+#include "gdkprivate.h"
+
+#endif
+
+#include "gdk.h" /* For gdk_flush() */
#include "gdkrgb.h"
-typedef struct _GdkRgbInfo GdkRgbInfo;
+typedef struct _GdkRgbInfo GdkRgbInfo;
+typedef struct _GdkRgbCmapInfo GdkRgbCmapInfo;
-typedef void (*GdkRgbConvFunc) (GdkImage *image,
+typedef void (*GdkRgbConvFunc) (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0,
gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
GdkRgbCmap *cmap);
+static const gchar* visual_names[] =
+{
+ "static gray",
+ "grayscale",
+ "static color",
+ "pseudo color",
+ "true color",
+ "direct color",
+};
+
+#define REGION_WIDTH 256
+#define STAGE_ROWSTRIDE (REGION_WIDTH * 3)
+#define REGION_HEIGHT 64
+
+/* We have N_REGION REGION_WIDTH x REGION_HEIGHT regions divided
+ * up between n_images different images. possible_n_images gives
+ * various divisors of N_REGIONS. The reason for allowing this
+ * flexibility is that we want to create as few images as possible,
+ * but we want to deal with the abberant systems that have a SHMMAX
+ * limit less than
+ *
+ * REGION_WIDTH * REGION_HEIGHT * N_REGIONS * 4 (384k)
+ *
+ * (Are there any such?)
+ */
+#define N_REGIONS 6
+static const int possible_n_images[] = { 1, 2, 3, 6 };
+
/* 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
GdkVisual *visual;
GdkColormap *cmap;
- gulong *color_pixels;
- gulong *gray_pixels;
- gulong *reserved_pixels;
-
guint nred_shades;
guint ngreen_shades;
guint nblue_shades;
gboolean dith_default;
+ gboolean bitmap; /* set true if in 1 bit per pixel mode */
+ GdkGC *own_gc;
+
/* Convert functions */
GdkRgbConvFunc conv;
GdkRgbConvFunc conv_d;
GdkRgbConvFunc conv_indexed;
GdkRgbConvFunc conv_indexed_d;
+
+ gint n_images;
+ GdkImage *static_image[N_REGIONS];
+ gint static_image_idx;
+
+ /* In order to optimize filling fractions, we simultaneously fill in up
+ * to three regions of size REGION_WIDTH * REGION_HEIGHT: one
+ * for images that are taller than REGION_HEIGHT / 2, and must
+ * be tiled horizontally. One for images that are wider than
+ * REGION_WIDTH / 2 and must be tiled vertically, and a third
+ * for images smaller than REGION_HEIGHT / 2 x REGION_WIDTH x 2
+ * that we tile in horizontal rows.
+ */
+ gint horiz_idx;
+ gint horiz_y;
+ gint vert_idx;
+ gint vert_x;
+
+ /* tile_y1 and tile_y2 define the horizontal band into
+ * which we are tiling images. tile_x is the x extent to
+ * which that is filled
+ */
+ gint tile_idx;
+ gint tile_x;
+ gint tile_y1;
+ gint tile_y2;
+
+ guchar *colorcube;
+ guchar *colorcube_d;
+
+ /* We need to track LUT's for pairs of GdkRgbInfo / GdkRgbCmap, so we
+ * keep a list of pointers to GdkRgbCmapInfo on both structures so we
+ * can remove as necessary when freeing a GdkRgbInfo or GdkRgbCmap
+ */
+ GSList *cmap_info_list;
};
-static gboolean gdk_rgb_install_cmap = FALSE;
-static gint gdk_rgb_min_colors = 5 * 5 * 5;
-static gboolean gdk_rgb_verbose = FALSE;
+struct _GdkRgbCmapInfo
+{
+ GdkRgbInfo *image_info;
+ GdkRgbCmap *cmap;
+
+ guchar lut[256]; /* For 8-bit modes */
+};
-#define IMAGE_WIDTH 256
-#define STAGE_ROWSTRIDE (IMAGE_WIDTH * 3)
-#define IMAGE_HEIGHT 64
-#define N_IMAGES 6
+static GdkRgbCmapInfo *gdk_rgb_cmap_get_info (GdkRgbCmap *cmap, GdkRgbInfo *image_info);
-static GdkRgbInfo *image_info = NULL;
-static GdkImage *static_image[N_IMAGES];
-static gint static_image_idx;
+static const char *gdk_rgb_key = "gdk-rgb-info";
+static GQuark gdk_rgb_quark = 0;
-static guchar *colorcube;
-static guchar *colorcube_d;
+static gboolean gdk_rgb_install_cmap = FALSE;
+static gint gdk_rgb_min_colors = 5 * 5 * 5;
+static gboolean gdk_rgb_verbose = FALSE;
static gint
gdk_rgb_cmap_fail (const char *msg, GdkColormap *cmap, gulong *pixels)
}
static void
-gdk_rgb_make_colorcube (gulong *pixels, gint nr, gint ng, gint nb)
+gdk_rgb_make_colorcube (GdkRgbInfo *image_info, gulong *pixels,
+ gint nr, gint ng, gint nb)
{
guchar rt[16], gt[16], bt[16];
gint i;
- colorcube = g_new (guchar, 4096);
+ image_info->colorcube = g_new (guchar, 4096);
for (i = 0; i < 16; i++)
{
rt[i] = ng * nb * ((i * 17 * (nr - 1) + 128) >> 8);
for (i = 0; i < 4096; i++)
{
- colorcube[i] = pixels[rt[i >> 8] + gt[(i >> 4) & 0x0f] + bt[i & 0x0f]];
+ image_info->colorcube[i] = pixels[rt[i >> 8] + gt[(i >> 4) & 0x0f] + bt[i & 0x0f]];
#ifdef VERBOSE
- g_print ("%03x %02x %x %x %x\n", i, colorcube[i], rt[i >> 8], gt[(i >> 4) & 0x0f], bt[i & 0x0f]);
+ g_print ("%03x %02x %x %x %x\n", i, image-info->colorcube[i], rt[i >> 8], gt[(i >> 4) & 0x0f], bt[i & 0x0f]);
#endif
}
}
/* this is the colorcube suitable for dithering */
static void
-gdk_rgb_make_colorcube_d (gulong *pixels, gint nr, gint ng, gint nb)
+gdk_rgb_make_colorcube_d (GdkRgbInfo *image_info, gulong *pixels,
+ gint nr, gint ng, gint nb)
{
gint r, g, b;
gint i;
- colorcube_d = g_new (guchar, 512);
+ image_info->colorcube_d = g_new (guchar, 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];
+ image_info->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 gint
-gdk_rgb_try_colormap (gint nr, gint ng, gint nb)
+gdk_rgb_try_colormap (GdkRgbInfo *image_info, gboolean force,
+ gint nr, gint ng, gint nb)
{
gint r, g, b;
gint ri, gi, bi;
gint idx;
gint best[256];
- if (nr * ng * nb < gdk_rgb_min_colors)
+ if (!force && nr * ng * nb < gdk_rgb_min_colors)
return FALSE;
- if (image_info->cmap_alloced)
+ if (image_info->cmap)
cmap = image_info->cmap;
else
cmap = gdk_colormap_get_system ();
}
#ifndef GAMMA
- if (!gdk_rgb_install_cmap)
- /* find color cube colors that are already present */
- for (i = 0; i < MIN (256, cmap->size); i++)
- {
- r = cmap->colors[i].red >> 8;
- g = cmap->colors[i].green >> 8;
- b = cmap->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)
- gdk_colors_free (cmap, pixels + idx, 1, 0);
- else
- colors_needed--;
- color = cmap->colors[i];
- if (!gdk_color_alloc (cmap, &color))
- return gdk_rgb_cmap_fail ("error allocating system color\n",
- cmap, pixels);
- pixels[idx] = color.pixel; /* which is almost certainly i */
- best[idx] = d2;
+ if (cmap == gdk_colormap_get_system())
+ /* find color cube colors that are already present */
+ for (i = 0; i < MIN (256, cmap->size); i++)
+ {
+ r = cmap->colors[i].red >> 8;
+ g = cmap->colors[i].green >> 8;
+ b = cmap->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)
+ gdk_colors_free (cmap, pixels + idx, 1, 0);
+ else
+ colors_needed--;
+ color = cmap->colors[i];
+ if (!gdk_colormap_alloc_color (cmap, &color, FALSE, FALSE))
+ return gdk_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)
color.blue = 65535 * pow (color.blue / 65535.0, 0.5);
#endif
- if (!gdk_color_alloc (cmap, &color))
+ if (!gdk_colormap_alloc_color (cmap, &color, FALSE, force))
{
char tmp_str[80];
image_info->nred_shades = nr;
image_info->ngreen_shades = ng;
image_info->nblue_shades = nb;
- gdk_rgb_make_colorcube (pixels, nr, ng, nb);
- gdk_rgb_make_colorcube_d (pixels, nr, ng, nb);
+ gdk_rgb_make_colorcube (image_info, pixels, nr, ng, nb);
+ gdk_rgb_make_colorcube_d (image_info, pixels, nr, ng, nb);
return TRUE;
}
/* Return TRUE on success. */
static gboolean
-gdk_rgb_do_colormaps (void)
+gdk_rgb_do_colormaps (GdkRgbInfo *image_info, gboolean force)
{
- const gint sizes[][3] = {
+ static const gint sizes[][3] = {
/* { 6, 7, 6 }, */
{ 6, 6, 6 },
{ 6, 6, 5 },
{ 3, 3, 3 },
{ 2, 2, 2 }
};
- const gint n_sizes = sizeof(sizes) / (3 * sizeof(gint));
+ static const gint n_sizes = sizeof(sizes) / (3 * sizeof(gint));
gint i;
+ /* Try the possible sizes. If the force parameter is set to TRUE
+ * and all larger sizes fail, force the larger size to succeed -
+ * this will involve allowing closest matches when allocating the
+ * colors
+ */
for (i = 0; i < n_sizes; i++)
- if (gdk_rgb_try_colormap (sizes[i][0], sizes[i][1], sizes[i][2]))
+ if (gdk_rgb_try_colormap (image_info,
+ (i == n_sizes - 1 ) && force,
+ sizes[i][0], sizes[i][1], sizes[i][2]))
return TRUE;
return FALSE;
}
+/* Make a 2 x 2 x 2 colorcube */
+static void
+gdk_rgb_colorcube_222 (GdkRgbInfo *image_info)
+{
+ int i;
+ GdkColor color;
+
+ image_info->colorcube_d = g_new (guchar, 512);
+
+ for (i = 0; i < 8; i++)
+ {
+ color.red = ((i & 4) >> 2) * 65535;
+ color.green = ((i & 2) >> 1) * 65535;
+ color.blue = (i & 1) * 65535;
+ gdk_colormap_alloc_color (image_info->cmap, &color, FALSE, TRUE);
+ image_info->colorcube_d[((i & 4) << 4) | ((i & 2) << 2) | (i & 1)] = color.pixel;
+ }
+}
+
void
gdk_rgb_set_verbose (gboolean verbose)
{
gdk_rgb_score_visual (GdkVisual *visual)
{
guint32 quality, speed, sys, pseudo;
- gchar* visual_names[] =
- {
- "static gray",
- "grayscale",
- "static color",
- "pseudo color",
- "true color",
- "direct color",
- };
-
quality = 0;
speed = 1;
else if (visual->depth == 8)
quality = 4;
}
- else if (visual->type == GDK_VISUAL_PSEUDO_COLOR)
+ else if (visual->type == GDK_VISUAL_PSEUDO_COLOR ||
+ visual->type == GDK_VISUAL_STATIC_COLOR)
{
if (visual->depth == 8)
quality = 4;
+ else if (visual->depth == 4)
+ quality = 2;
+ else if (visual->depth == 1)
+ quality = 1;
}
else if (visual->type == GDK_VISUAL_STATIC_GRAY
#ifdef ENABLE_GRAYSCALE
sys = (visual == gdk_visual_get_system ());
- pseudo = (visual->type == GDK_VISUAL_PSEUDO_COLOR);
+ pseudo = (visual->type == GDK_VISUAL_PSEUDO_COLOR || visual->type == GDK_VISUAL_TRUE_COLOR);
if (gdk_rgb_verbose)
- g_print ("Visual 0x%x, type = %s, depth = %d, %x:%x:%x%s; score=%x\n",
- (gint)(((GdkVisualPrivate *)visual)->xvisual->visualid),
+ g_print ("Visual type = %s, depth = %d, %x:%x:%x%s; score=%x\n",
visual_names[visual->type],
visual->depth,
visual->red_mask,
return (quality << 12) | (speed << 8) | (sys << 4) | pseudo;
}
-static void
+static GdkVisual *
gdk_rgb_choose_visual (void)
{
- GList *visuals;
+ GList *visuals, *tmp_list;
guint32 score, best_score;
GdkVisual *visual, *best_visual;
visuals = gdk_list_visuals ();
+ tmp_list = visuals;
- best_visual = visuals->data;
+ best_visual = tmp_list->data;
best_score = gdk_rgb_score_visual (best_visual);
- visuals = visuals->next;
- while (visuals)
+ tmp_list = tmp_list->next;
+ while (tmp_list)
{
- visual = visuals->data;
+ visual = tmp_list->data;
score = gdk_rgb_score_visual (visual);
if (score > best_score)
{
best_score = score;
best_visual = visual;
}
- visuals = visuals->next;
+ tmp_list = tmp_list->next;
}
- image_info->visual = best_visual;
+ g_list_free (visuals);
+
+ return best_visual;
}
-static void gdk_rgb_select_conv (GdkImage *image);
+static void gdk_rgb_select_conv (GdkRgbInfo *image_info, GdkImage *image);
static void
-gdk_rgb_set_gray_cmap (GdkColormap *cmap)
+gdk_rgb_set_gray_cmap (GdkRgbInfo *image_info,
+ GdkColormap *cmap)
{
gint i;
GdkColor color;
color.red = i * 257;
color.green = i * 257;
color.blue = i * 257;
- status = gdk_color_alloc (cmap, &color);
+ status = gdk_colormap_alloc_color (cmap, &color, FALSE, TRUE);
pixels[i] = color.pixel;
#ifdef VERBOSE
g_print ("allocating pixel %d, %x %x %x, result %d\n",
/* Now, we make fake colorcubes - we ultimately just use the pseudocolor
methods. */
- colorcube = g_new (guchar, 4096);
+ image_info->colorcube = g_new (guchar, 4096);
for (i = 0; i < 4096; i++)
{
b = (i << 4 & 0xf0);
b = b | b >> 4;
gray = (g + ((r + b) >> 1)) >> 1;
- colorcube[i] = pixels[gray];
+ image_info->colorcube[i] = pixels[gray];
}
}
-void
-gdk_rgb_init (void)
+static gboolean
+gdk_rgb_allocate_images (GdkRgbInfo *image_info,
+ gint n_images,
+ gboolean shared)
{
gint i;
- gint byte_order[1] = { 1 };
+
+ for (i = 0; i < n_images; i++)
+ {
+ if (image_info->bitmap)
+ /* Use malloc() instead of g_malloc since X will free() this mem */
+ image_info->static_image[i] = gdk_image_new_bitmap (image_info->visual,
+ (gpointer) malloc (REGION_WIDTH * REGION_HEIGHT >> 3),
+ REGION_WIDTH * (N_REGIONS / n_images), REGION_HEIGHT);
+ else
+ image_info->static_image[i] = gdk_image_new (shared ? GDK_IMAGE_SHARED : GDK_IMAGE_NORMAL,
+ image_info->visual,
+ REGION_WIDTH * (N_REGIONS / n_images), REGION_HEIGHT);
- /* check endian sanity */
-#ifdef WORDS_BIGENDIAN
- if (((char *)byte_order)[0] == 1)
- g_error ("gdk_rgb_init: WORDS_BIGENDIAN is defined, but this is a little endian machine.\n\n");
-#else
- if (((char *)byte_order)[0] != 1)
- g_error ("gdk_rgb_init: WORDS_BIGENDIAN is not defined, but this is a little endian machine.\n\n");
-#endif
+ if (!image_info->static_image[i])
+ {
+ gint j;
+
+ for (j = 0; j < i; j++)
+ gdk_image_unref (image_info->static_image[i]);
+
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+gdk_rgb_free_info (GdkRgbInfo *image_info)
+{
+ gint i;
+ GSList *tmp_list;
+
+
+ if (image_info->stage_buf)
+ g_free (image_info->stage_buf);
+
+ if (image_info->gray_cmap)
+ gdk_rgb_cmap_free (image_info->gray_cmap);
- if (image_info == NULL)
+ if (image_info->own_gc)
+ gdk_gc_unref (image_info->own_gc);
+
+ for (i = 0; i < image_info->n_images; i++)
+ gdk_image_unref (image_info->static_image[i]);
+
+ if (image_info->colorcube)
+ g_free (image_info->colorcube);
+
+ if (image_info->colorcube_d)
+ g_free (image_info->colorcube_d);
+
+ tmp_list = image_info->cmap_info_list;
+ while (tmp_list)
{
- image_info = g_new0 (GdkRgbInfo, 1);
+ GdkRgbCmapInfo *cmap_info = tmp_list->data;
+ cmap_info->cmap->info_list = g_slist_remove (cmap_info->cmap->info_list, cmap_info);
+ g_free (cmap_info);
+ }
+ g_slist_free (image_info->cmap_info_list);
+
+ g_free (image_info);
+}
+
+/* Create a GdkRgbInfo for the given visual/colormap pair. If colormap
+ * is NULL, it will be determined and stored in image_info->cmap.
+ * In this case, image_info->cmap will have an extra refcount which
+ * is owned by the caller.
+ */
+static GdkRgbInfo *
+gdk_rgb_create_info (GdkVisual *visual, GdkColormap *colormap)
+{
+ GdkRgbInfo *image_info;
+ gint i;
+
+ image_info = g_new0 (GdkRgbInfo, 1);
- image_info->visual = NULL;
- image_info->cmap = NULL;
+ image_info->visual = visual;
+ image_info->cmap = NULL;
- 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->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 = 1.0;
- image_info->bpp = 0;
- image_info->cmap_alloced = FALSE;
- image_info->gamma = 1.0;
+ image_info->stage_buf = NULL;
- image_info->stage_buf = NULL;
+ image_info->own_gc = NULL;
- gdk_rgb_choose_visual ();
+ image_info->cmap = colormap;
- if (image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR)
+ if ((image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
+ image_info->visual->type == GDK_VISUAL_STATIC_COLOR) &&
+ image_info->visual->depth < 8 &&
+ image_info->visual->depth >= 3)
+ {
+ if (!image_info->cmap)
+ image_info->cmap = gdk_colormap_ref (gdk_colormap_get_system ());
+
+ gdk_rgb_colorcube_222 (image_info);
+ }
+ else if (image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR)
+ {
+ if (!image_info->cmap &&
+ (gdk_rgb_install_cmap || image_info->visual != gdk_visual_get_system ()))
{
- if (gdk_rgb_install_cmap ||
- image_info->visual != gdk_visual_get_system ())
- {
- image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
- image_info->cmap_alloced = TRUE;
- }
- if (!gdk_rgb_do_colormaps ())
- {
- image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
- image_info->cmap_alloced = TRUE;
- gdk_rgb_do_colormaps ();
- }
- if (gdk_rgb_verbose)
- g_print ("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 = gdk_colormap_get_system ();
+ image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
+ image_info->cmap_alloced = TRUE;
+ }
+ if (!gdk_rgb_do_colormaps (image_info, image_info->cmap != NULL))
+ {
+ image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
+ image_info->cmap_alloced = TRUE;
+ gdk_rgb_do_colormaps (image_info, TRUE);
}
+ if (gdk_rgb_verbose)
+ g_print ("color cube: %d x %d x %d\n",
+ image_info->nred_shades,
+ image_info->ngreen_shades,
+ image_info->nblue_shades);
+
+ if (!image_info->cmap)
+ image_info->cmap = gdk_colormap_ref (gdk_colormap_get_system ());
+ }
#ifdef ENABLE_GRAYSCALE
- else if (image_info->visual->type == GDK_VISUAL_GRAYSCALE)
+ else if (image_info->visual->type == GDK_VISUAL_GRAYSCALE)
+ {
+ if (!image_info->cmap)
{
image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
- gdk_rgb_set_gray_cmap (image_info->cmap);
image_info->cmap_alloced = TRUE;
- }
+ }
+
+ gdk_rgb_set_gray_cmap (image_info, image_info->cmap);
+ }
#endif
- else
+ else
+ {
+ if (!image_info->cmap)
{
/* Always install colormap in direct color. */
if (image_info->visual->type != GDK_VISUAL_DIRECT_COLOR &&
image_info->visual == gdk_visual_get_system ())
- image_info->cmap = gdk_colormap_get_system ();
+ image_info->cmap = gdk_colormap_ref (gdk_colormap_get_system ());
else
{
image_info->cmap = gdk_colormap_new (image_info->visual, FALSE);
image_info->cmap_alloced = TRUE;
}
}
+ }
- for (i = 0; i < N_IMAGES; i++)
- static_image[i] = gdk_image_new (GDK_IMAGE_FASTEST,
- image_info->visual,
- IMAGE_WIDTH, IMAGE_HEIGHT);
-
- image_info->bpp = static_image[0]->bpp;
+ image_info->bitmap = (image_info->visual->depth == 1);
- gdk_rgb_select_conv (static_image[0]);
+ /* Try to allocate as few possible shared images */
+ for (i=0; i < G_N_ELEMENTS (possible_n_images); i++)
+ {
+ if (gdk_rgb_allocate_images (image_info, possible_n_images[i], TRUE))
+ {
+ image_info->n_images = possible_n_images[i];
+ break;
+ }
+ }
+ /* If that fails, just allocate N_REGIONS normal images */
+ if (i == G_N_ELEMENTS (possible_n_images))
+ {
+ gdk_rgb_allocate_images (image_info, N_REGIONS, FALSE);
+ image_info->n_images = N_REGIONS;
}
+
+ image_info->bpp = image_info->static_image[0]->bpp;
+
+ image_info->static_image_idx = 0;
+
+ image_info->horiz_y = REGION_HEIGHT;
+ image_info->vert_x = REGION_WIDTH;
+ image_info->tile_x = REGION_WIDTH;
+ image_info->tile_y1 = image_info->tile_y2 = REGION_HEIGHT;
+
+ gdk_rgb_select_conv (image_info, image_info->static_image[0]);
+
+ if (!gdk_rgb_quark)
+ gdk_rgb_quark = g_quark_from_static_string (gdk_rgb_key);
+
+ g_object_set_qdata_full (G_OBJECT (image_info->cmap), gdk_rgb_quark,
+ image_info, (GDestroyNotify)gdk_rgb_free_info);
+ return image_info;
}
-/* convert an rgb value into an X pixel code */
-gulong
-gdk_rgb_xpixel_from_rgb (guint32 rgb)
+void
+gdk_rgb_init (void)
{
- gulong pixel;
+ static const gint byte_order[1] = { 1 };
- if (image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR)
- pixel = colorcube[((rgb & 0xf00000) >> 12) |
- ((rgb & 0xf000) >> 8) |
- ((rgb & 0xf0) >> 4)];
- else
- {
+ /* check endian sanity */
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+ if (((char *)byte_order)[0] == 1)
+ g_error ("gdk_rgb_init: compiled for big endian, but this is a little endian machine.\n\n");
+#else
+ if (((char *)byte_order)[0] != 1)
+ g_error ("gdk_rgb_init: compiled for little endian, but this is a big endian machine.\n\n");
+#endif
+}
+
+static GdkRgbInfo *
+gdk_rgb_get_info_from_colormap (GdkColormap *cmap)
+{
+ GdkRgbInfo *image_info;
+
+ if (!gdk_rgb_quark)
+ gdk_rgb_quark = g_quark_from_static_string (gdk_rgb_key);
+
+ image_info = g_object_get_qdata (G_OBJECT (cmap), gdk_rgb_quark);
+ if (!image_info)
+ image_info = gdk_rgb_create_info (gdk_colormap_get_visual (cmap), cmap);
+
+ return image_info;
+}
+
+static gulong
+gdk_rgb_xpixel_from_rgb_internal (GdkColormap *colormap,
+ guint16 r, guint16 g, guint16 b)
+{
+ gulong pixel = 0;
+
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_colormap (colormap);
+
+ if (image_info->bitmap)
+ {
+ return (r + (g << 1) + b) > 131070;
+ }
+ else if (image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR)
+ pixel = image_info->colorcube[((r & 0xf000) >> 4) |
+ ((g & 0xf000) >> 8) |
+ ((b & 0xf000) >> 12)];
+ else if (image_info->visual->depth < 8 &&
+ image_info->visual->type == GDK_VISUAL_STATIC_COLOR)
+ {
+ pixel = image_info->colorcube_d[((r & 0x8000) >> 9) |
+ ((g & 0x8000) >> 12) |
+ ((b & 0x8000) >> 15)];
+ }
+ else if (image_info->visual->type == GDK_VISUAL_TRUE_COLOR ||
+ image_info->visual->type == GDK_VISUAL_DIRECT_COLOR)
+ {
#ifdef VERBOSE
- g_print ("shift, prec: r %d %d g %d %d b %d %d\n",
- image_info->visual->red_shift,
- image_info->visual->red_prec,
- image_info->visual->green_shift,
- image_info->visual->green_prec,
- image_info->visual->blue_shift,
- image_info->visual->blue_prec);
+ g_print ("shift, prec: r %d %d g %d %d b %d %d\n",
+ image_info->visual->red_shift,
+ image_info->visual->red_prec,
+ image_info->visual->green_shift,
+ image_info->visual->green_prec,
+ image_info->visual->blue_shift,
+ image_info->visual->blue_prec);
#endif
- pixel = (((((rgb & 0xff0000) >> 16) >>
- (8 - image_info->visual->red_prec)) <<
- image_info->visual->red_shift) +
- ((((rgb & 0xff00) >> 8) >>
- (8 - image_info->visual->green_prec)) <<
- image_info->visual->green_shift) +
- (((rgb & 0xff) >>
- (8 - image_info->visual->blue_prec)) <<
- image_info->visual->blue_shift));
-
- ;
- }
+ pixel = (((r >> (16 - image_info->visual->red_prec)) << image_info->visual->red_shift) +
+ ((g >> (16 - image_info->visual->green_prec)) << image_info->visual->green_shift) +
+ ((b >> (16 - image_info->visual->blue_prec)) << image_info->visual->blue_shift));
+ }
+ else if (image_info->visual->type == GDK_VISUAL_STATIC_GRAY ||
+ image_info->visual->type == GDK_VISUAL_GRAYSCALE)
+ {
+ int gray = r + g * 2 + b;
+ return gray >> (18 - image_info->visual->depth);
+ }
return pixel;
}
+/* convert an rgb value into an X pixel code */
+gulong
+gdk_rgb_xpixel_from_rgb (guint32 rgb)
+{
+ guint32 r = rgb & 0xff0000;
+ guint32 g = rgb & 0xff00;
+ guint32 b = rgb & 0xff;
+
+ return gdk_rgb_xpixel_from_rgb_internal (gdk_rgb_get_colormap(),
+ (r >> 8) + (r >> 16), g + (g >> 8), b + (b << 8));
+}
+
void
gdk_rgb_gc_set_foreground (GdkGC *gc, guint32 rgb)
{
gdk_gc_set_background (gc, &color);
}
-#ifndef WORDS_BIGENDIAN
+void
+gdk_rgb_find_color (GdkColormap *colormap, GdkColor *color)
+{
+ color->pixel = gdk_rgb_xpixel_from_rgb_internal (colormap,
+ color->red, color->green, color->blue);
+}
+
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define HAIRY_CONVERT_8
#endif
#ifdef HAIRY_CONVERT_8
static void
-gdk_rgb_convert_8 (GdkImage *image,
+gdk_rgb_convert_8 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
guchar *obuf, *obptr;
guchar *bptr, *bp2;
gint r, g, b;
+ guchar *colorcube = image_info->colorcube;
bptr = buf;
bpl = image->bpl;
{
bp2 = bptr;
obptr = obuf;
- if (width < 8 || (((unsigned long)obuf | (unsigned long) bp2) & 3))
+ if (((unsigned long)obuf | (unsigned long) bp2) & 3)
{
for (x = 0; x < width; x++)
{
}
#else
static void
-gdk_rgb_convert_8 (GdkImage *image,
+gdk_rgb_convert_8 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
guchar *obuf, *obptr;
guchar *bptr, *bp2;
gint r, g, b;
+ guchar *colorcube = image_info->colorcube;
bptr = buf;
bpl = image->bpl;
public domain. */
#define DM_WIDTH 128
+#define DM_WIDTH_SHIFT 7
#define DM_HEIGHT 128
-static guchar DM[128][128] =
+static const guchar 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 },
{ 46, 2, 56, 11, 41, 1, 49, 6, 27, 47, 2, 48, 5, 32, 37, 3, 13, 19, 32, 1, 55, 28, 60, 17, 43, 59, 32, 20, 49, 16, 55, 23, 14, 46, 2, 36, 6, 30, 20, 49, 12, 47, 35, 14, 21, 60, 29, 14, 35, 24, 46, 1, 56, 29, 53, 8, 33, 23, 56, 1, 35, 46, 20, 39, 26, 4, 53, 28, 17, 38, 60, 34, 48, 9, 55, 15, 46, 7, 41, 31, 60, 24, 16, 36, 1, 59, 19, 52, 35, 6, 55, 11, 59, 33, 7, 57, 4, 29, 48, 1, 19, 26, 37, 30, 18, 63, 37, 6, 59, 1, 40, 24, 56, 33, 46, 22, 35, 7, 24, 53, 39, 5, 26, 45, 55, 18, 62, 7 },
{ 20, 60, 29, 34, 20, 62, 33, 52, 10, 36, 13, 60, 41, 21, 50, 27, 56, 49, 8, 51, 21, 45, 11, 48, 8, 23, 53, 3, 29, 44, 5, 52, 9, 32, 50, 17, 43, 56, 3, 38, 24, 10, 62, 25, 51, 9, 33, 49, 61, 7, 30, 62, 22, 19, 2, 42, 63, 5, 49, 18, 60, 15, 52, 7, 43, 56, 23, 50, 5, 50, 2, 20, 41, 30, 1, 52, 22, 61, 14, 26, 3, 43, 53, 7, 47, 28, 11, 14, 23, 58, 33, 25, 47, 13, 50, 17, 40, 54, 34, 60, 41, 6, 59, 14, 50, 7, 25, 55, 20, 42, 51, 8, 27, 4, 16, 60, 28, 50, 44, 3, 22, 49, 63, 12, 33, 1, 43, 31 },
{ 36, 5, 46, 8, 44, 24, 13, 39, 25, 57, 31, 18, 8, 52, 10, 45, 6, 30, 36, 24, 63, 4, 33, 26, 57, 40, 15, 56, 37, 12, 40, 25, 37, 58, 11, 63, 21, 45, 16, 60, 31, 53, 18, 33, 3, 45, 23, 0, 20, 54, 40, 15, 50, 38, 60, 16, 25, 42, 29, 38, 7, 41, 25, 62, 18, 33, 8, 35, 42, 16, 32, 56, 12, 39, 59, 19, 34, 9, 49, 38, 57, 12, 21, 50, 14, 40, 61, 44, 50, 9, 49, 19, 3, 29, 35, 62, 12, 24, 7, 18, 52, 32, 10, 46, 21, 41, 32, 11, 36, 29, 14, 34, 60, 38, 54, 11, 41, 14, 19, 57, 32, 16, 7, 41, 51, 25, 14, 57 },
- { 53, 18, 26, 50, 15, 58, 4, 63, 17, 43, 7, 40, 61, 35, 15, 41, 23, 60, 16, 38, 14, 42, 19, 50, 0, 31, 10, 46, 27, 63, 18, 60, 0, 20, 29, 39, 8, 26, 37, 5, 42, 0, 44, 39, 57, 17, 58, 41, 28, 37, 4, 32, 9, 44, 12, 31, 54, 10, 59, 14, 27, 53, 12, 36, 0, 47, 13, 64, 21, 58, 10, 24, 50, 27, 4, 26, 44, 53, 31, 0, 18, 42, 29, 33, 57, 4, 32, 26, 0, 38, 16, 61, 41, 53, 20, 0, 42, 44, 49, 27, 10, 56, 39, 0, 57, 15, 53, 49, 3, 61, 22, 47, 17, 5, 49, 26, 2, 63, 39, 10, 47, 27, 37, 23, 4, 59, 38, 10 },
+ { 53, 18, 26, 50, 15, 58, 4, 63, 17, 43, 7, 40, 61, 35, 15, 41, 23, 60, 16, 38, 14, 42, 19, 50, 0, 31, 10, 46, 27, 63, 18, 60, 0, 20, 29, 39, 8, 26, 37, 5, 42, 0, 44, 39, 57, 17, 58, 41, 28, 37, 4, 32, 9, 44, 12, 31, 54, 10, 59, 14, 27, 53, 12, 36, 0, 47, 13, 63, 21, 58, 10, 24, 50, 27, 4, 26, 44, 53, 31, 0, 18, 42, 29, 33, 57, 4, 32, 26, 0, 38, 16, 61, 41, 53, 20, 0, 42, 44, 49, 27, 10, 56, 39, 0, 57, 15, 53, 49, 3, 61, 22, 47, 17, 5, 49, 26, 2, 63, 39, 10, 47, 27, 37, 23, 4, 59, 38, 10 },
{ 23, 39, 61, 3, 37, 28, 48, 31, 0, 34, 51, 23, 2, 26, 58, 0, 53, 11, 46, 1, 57, 29, 52, 14, 37, 61, 21, 35, 2, 49, 7, 34, 47, 55, 4, 33, 54, 13, 58, 52, 19, 50, 22, 7, 13, 29, 36, 11, 51, 17, 60, 25, 55, 4, 34, 51, 0, 35, 20, 48, 32, 3, 51, 30, 59, 28, 40, 3, 46, 29, 54, 43, 7, 62, 47, 11, 39, 4, 23, 46, 55, 8, 63, 5, 25, 37, 18, 46, 21, 56, 31, 5, 36, 8, 45, 58, 26, 15, 2, 36, 47, 21, 29, 44, 25, 34, 3, 27, 43, 10, 52, 0, 45, 30, 24, 36, 43, 18, 34, 59, 0, 52, 61, 15, 44, 19, 30, 49 },
{ 0, 27, 12, 43, 54, 9, 22, 53, 21, 46, 15, 55, 29, 47, 20, 33, 39, 28, 59, 35, 9, 44, 5, 24, 47, 7, 52, 17, 56, 22, 30, 42, 14, 26, 45, 18, 49, 1, 24, 34, 11, 27, 55, 32, 61, 47, 2, 56, 6, 44, 13, 47, 36, 27, 58, 22, 16, 47, 40, 4, 57, 38, 21, 45, 16, 9, 56, 26, 11, 38, 0, 22, 36, 17, 33, 57, 16, 30, 62, 15, 35, 40, 20, 45, 59, 10, 54, 8, 63, 13, 52, 27, 22, 57, 28, 12, 32, 51, 55, 22, 63, 4, 16, 54, 12, 62, 45, 19, 58, 13, 32, 40, 20, 56, 7, 57, 9, 54, 6, 29, 42, 21, 8, 55, 35, 47, 6, 41 },
{ 56, 33, 58, 32, 19, 35, 42, 6, 59, 11, 38, 5, 49, 12, 62, 7, 52, 17, 5, 25, 54, 20, 61, 31, 54, 27, 41, 11, 44, 5, 59, 12, 36, 51, 10, 61, 28, 41, 48, 9, 43, 63, 5, 40, 20, 8, 49, 26, 34, 21, 58, 1, 18, 45, 7, 39, 61, 26, 8, 50, 23, 10, 63, 5, 55, 37, 19, 49, 52, 15, 59, 47, 13, 54, 1, 25, 42, 58, 10, 48, 3, 27, 50, 1, 17, 48, 34, 41, 16, 40, 2, 45, 10, 39, 17, 61, 5, 38, 19, 9, 41, 31, 60, 38, 5, 23, 36, 8, 30, 55, 24, 63, 12, 48, 14, 51, 31, 20, 45, 25, 12, 50, 32, 2, 28, 11, 62, 14 },
#else
#define DM_WIDTH 8
+#define DM_WIDTH_SHIFT 3
#define DM_HEIGHT 8
-static guchar DM[8][8] =
+static const guchar DM[8][8] =
{
{ 0, 32, 8, 40, 2, 34, 10, 42 },
{ 48, 16, 56, 24, 50, 18, 58, 26 },
};
#endif
+static guint32 *DM_565 = NULL;
+
+static void
+gdk_rgb_preprocess_dm_565 (void)
+{
+ int i;
+ guint32 dith;
+
+ if (DM_565 == NULL)
+ {
+ DM_565 = g_new (guint32, DM_WIDTH * DM_HEIGHT);
+ for (i = 0; i < DM_WIDTH * DM_HEIGHT; i++)
+ {
+ dith = DM[0][i] >> 3;
+ DM_565[i] = (dith << 20) | dith | (((7 - dith) >> 1) << 10);
+#ifdef VERBOSE
+ g_print ("%i %x %x\n", i, dith, DM_565[i]);
+#endif
+ }
+ }
+}
+
static void
-gdk_rgb_convert_8_d666 (GdkImage *image,
+gdk_rgb_convert_8_d666 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
guchar *obuf, *obptr;
guchar *bptr, *bp2;
gint r, g, b;
- guchar *dmp;
+ const guchar *dmp;
gint dith;
+ guchar *colorcube_d = image_info->colorcube_d;
bptr = buf;
bpl = image->bpl;
}
static void
-gdk_rgb_convert_8_d (GdkImage *image,
+gdk_rgb_convert_8_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
guchar *obuf, *obptr;
guchar *bptr, *bp2;
gint r, g, b;
- guchar *dmp;
+ const guchar *dmp;
gint dith;
gint rs, gs, bs;
+ guchar *colorcube_d = image_info->colorcube_d;
bptr = buf;
bpl = image->bpl;
}
static void
-gdk_rgb_convert_8_indexed (GdkImage *image,
+gdk_rgb_convert_8_indexed (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
guchar *bptr, *bp2;
guchar c;
guchar *lut;
+ GdkRgbCmapInfo *cmap_info = gdk_rgb_cmap_get_info (cmap, image_info);
- lut = cmap->lut;
+ lut = cmap_info->lut;
bptr = buf;
bpl = image->bpl;
obuf = ((guchar *)image->mem) + y0 * bpl + x0;
}
static void
-gdk_rgb_convert_gray8 (GdkImage *image,
+gdk_rgb_convert_gray8 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
static void
-gdk_rgb_convert_gray8_gray (GdkImage *image,
+gdk_rgb_convert_gray8_gray (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
}
-#ifndef WORDS_BIGENDIAN
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define HAIRY_CONVERT_565
#endif
words (i.e. 4 24-bit pixels), does a lot of shifting and masking,
then writes 2 words. */
static void
-gdk_rgb_convert_565 (GdkImage *image,
+gdk_rgb_convert_565 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
bp2 = bptr;
obptr = obuf;
- if (width < 8 || (((unsigned long)obuf | (unsigned long) bp2) & 3))
+ if (((unsigned long)obuf | (unsigned long) bp2) & 3)
{
for (x = 0; x < width; x++)
{
shifting and masking, then writes 2 words.
*/
static void
-gdk_rgb_convert_565 (GdkImage *image,
+gdk_rgb_convert_565 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
#ifdef HAIRY_CONVERT_565
static void
-gdk_rgb_convert_565_gray (GdkImage *image,
+gdk_rgb_convert_565_gray (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
bp2 = bptr;
obptr = obuf;
- if (width < 8 || (((unsigned long)obuf | (unsigned long) bp2) & 3))
+ if (((unsigned long)obuf | (unsigned long) bp2) & 3)
{
for (x = 0; x < width; x++)
{
}
#else
static void
-gdk_rgb_convert_565_gray (GdkImage *image,
+gdk_rgb_convert_565_gray (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
#endif
static void
-gdk_rgb_convert_565_br (GdkImage *image,
+gdk_rgb_convert_565_br (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
}
+/* Thanks to Ray Lehtiniemi for a patch that resulted in a ~25% speedup
+ in this mode. */
+#ifdef HAIRY_CONVERT_565
static void
-gdk_rgb_convert_565_d (GdkImage *image,
- gint x0, gint y0, gint width, gint height,
- guchar *buf, int rowstride,
- gint x_align, gint y_align, GdkRgbCmap *cmap)
+gdk_rgb_convert_565_d (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
{
+ /* Now this is what I'd call some highly tuned code! */
int x, y;
- guchar *obuf;
+ guchar *obuf, *obptr;
gint bpl;
guchar *bptr, *bp2;
- guchar r, g, b;
- gint dith;
- gint r1, g1, b1;
- guchar *dmp;
+ width += x_align;
+ height += y_align;
+
bptr = buf;
bpl = image->bpl;
obuf = ((guchar *)image->mem) + y0 * bpl + x0 * 2;
- for (y = 0; y < height; y++)
+ for (y = y_align; y < height; y++)
{
- dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+ guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT);
bp2 = bptr;
- for (x = 0; x < width; x++)
+ obptr = obuf;
+ if (((unsigned long)obuf | (unsigned long) bp2) & 3)
{
- r = *bp2++;
- g = *bp2++;
- b = *bp2++;
- dith = dmp[(x_align + x) & (DM_WIDTH - 1)] >> 3;
- r1 = r + dith;
- g1 = g + ((7 - dith) >> 1);
- b1 = b + dith;
- ((unsigned short *)obuf)[x] = (((r1 - (r1 >> 5)) & 0xf8) << 8) |
- (((g1 - (g1 >> 6)) & 0xfc) << 3) |
- (((b1 - (b1 >> 5)) & 0xf8) >> 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
+gdk_rgb_convert_565_d (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ guchar *obuf;
+ gint bpl;
+ guchar *bptr;
+
+ width += x_align;
+ height += y_align;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + (x0 - x_align) * 2;
+
+ for (y = y_align; y < height; y++)
+ {
+ guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT);
+ guchar *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
-gdk_rgb_convert_555 (GdkImage *image,
+gdk_rgb_convert_555 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
static void
-gdk_rgb_convert_555_br (GdkImage *image,
+gdk_rgb_convert_555_br (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
static void
-gdk_rgb_convert_888_msb (GdkImage *image,
+gdk_rgb_convert_888_msb (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
}
/* todo: optimize this */
-#ifndef WORDS_BIGENDIAN
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define HAIRY_CONVERT_888
#endif
#ifdef HAIRY_CONVERT_888
static void
-gdk_rgb_convert_888_lsb (GdkImage *image,
+gdk_rgb_convert_888_lsb (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
bp2 = bptr;
obptr = obuf;
- if (width < 8 || (((unsigned long)obuf | (unsigned long) bp2) & 3))
+ if (((unsigned long)obuf | (unsigned long) bp2) & 3)
{
for (x = 0; x < width; x++)
{
}
#else
static void
-gdk_rgb_convert_888_lsb (GdkImage *image,
+gdk_rgb_convert_888_lsb (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
/* convert 24-bit packed to 32-bit unpacked */
/* todo: optimize this */
static void
-gdk_rgb_convert_0888 (GdkImage *image,
+gdk_rgb_convert_0888 (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
r = bp2[0];
g = bp2[1];
b = bp2[2];
- ((unsigned long *)obuf)[x] = (r << 16) | (g << 8) | b;
+ ((guint32 *)obuf)[x] = (r << 16) | (g << 8) | b;
bp2 += 3;
}
bptr += rowstride;
}
static void
-gdk_rgb_convert_0888_br (GdkImage *image,
+gdk_rgb_convert_0888_br (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
r = bp2[0];
g = bp2[1];
b = bp2[2];
- ((unsigned long *)obuf)[x] = (b << 24) | (g << 16) | (r << 8);
+ ((guint32 *)obuf)[x] = (b << 24) | (g << 16) | (r << 8);
bp2 += 3;
}
bptr += rowstride;
}
}
-/* Generic truecolor/directcolor conversion function. Slow, but these
- are oddball modes. */
static void
-gdk_rgb_convert_truecolor_lsb (GdkImage *image,
- gint x0, gint y0, gint width, gint height,
+gdk_rgb_convert_8880_br (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ guchar *obuf;
+ gint bpl;
+ guchar *bptr, *bp2;
+ int r, g, b;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + x0 * 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
+gdk_rgb_convert_truecolor_lsb (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
GdkRgbCmap *cmap)
}
static void
-gdk_rgb_convert_truecolor_lsb_d (GdkImage *image,
+gdk_rgb_convert_truecolor_lsb_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
gint i;
gint dith;
gint r1, g1, b1;
- guchar *dmp;
+ const guchar *dmp;
r_right = 8 - image_info->visual->red_prec;
r_left = image_info->visual->red_shift;
}
static void
-gdk_rgb_convert_truecolor_msb (GdkImage *image,
+gdk_rgb_convert_truecolor_msb (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
}
static void
-gdk_rgb_convert_truecolor_msb_d (GdkImage *image,
+gdk_rgb_convert_truecolor_msb_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, int rowstride,
gint x_align, gint y_align,
gint shift, shift_init;
gint dith;
gint r1, g1, b1;
- guchar *dmp;
+ const guchar *dmp;
r_right = 8 - image_info->visual->red_prec;
r_left = image_info->visual->red_shift;
}
}
+/* This actually works for depths from 3 to 7 */
+static void
+gdk_rgb_convert_4 (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align,
+ GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ const guchar *dmp;
+ gint dith;
+ guchar *colorcube_d = image_info->colorcube_d;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + x0;
+ 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
+gdk_rgb_convert_gray4 (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ gint shift;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + x0;
+ shift = 9 - image_info->visual->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
+gdk_rgb_convert_gray4_pack (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ gint shift;
+ guchar pix0, pix1;
+ /* todo: this is hardcoded to big-endian. Make endian-agile. */
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + (x0 >> 1);
+ shift = 9 - image_info->visual->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
+gdk_rgb_convert_gray4_d (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ const guchar *dmp;
+ gint prec, right;
+ gint gray;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + x0;
+ prec = image_info->visual->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
+gdk_rgb_convert_gray4_d_pack (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ const guchar *dmp;
+ gint prec, right;
+ gint gray;
+ guchar pix0, pix1;
+ /* todo: this is hardcoded to big-endian. Make endian-agile. */
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + (x0 >> 1);
+ prec = image_info->visual->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
+gdk_rgb_convert_1 (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, int rowstride,
+ gint x_align, gint y_align,
+ GdkRgbCmap *cmap)
+{
+ int x, y;
+ gint bpl;
+ guchar *obuf, *obptr;
+ guchar *bptr, *bp2;
+ gint r, g, b;
+ const guchar *dmp;
+ gint dith;
+ guchar byte;
+
+ bptr = buf;
+ bpl = image->bpl;
+ obuf = ((guchar *)image->mem) + y0 * bpl + (x0 >> 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 guchar *
-gdk_rgb_ensure_stage (void)
+gdk_rgb_ensure_stage (GdkRgbInfo *image_info)
{
if (image_info->stage_buf == NULL)
- image_info->stage_buf = g_malloc (IMAGE_HEIGHT * STAGE_ROWSTRIDE);
+ image_info->stage_buf = g_malloc (REGION_HEIGHT * STAGE_ROWSTRIDE);
return image_info->stage_buf;
}
/* This is slow. Speed me up, please. */
static void
-gdk_rgb_32_to_stage (guchar *buf, gint rowstride, gint width, gint height)
+gdk_rgb_32_to_stage (GdkRgbInfo *image_info,
+ guchar *buf, gint rowstride, gint width, gint height)
{
gint x, y;
guchar *pi_start, *po_start;
guchar *pi, *po;
pi_start = buf;
- po_start = gdk_rgb_ensure_stage ();
+ po_start = gdk_rgb_ensure_stage (image_info);
for (y = 0; y < height; y++)
{
pi = pi_start;
/* Generic 32bit RGB conversion function - convert to 24bit packed, then
go from there. */
static void
-gdk_rgb_convert_32_generic (GdkImage *image,
+gdk_rgb_convert_32_generic (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- gdk_rgb_32_to_stage (buf, rowstride, width, height);
+ gdk_rgb_32_to_stage (image_info, buf, rowstride, width, height);
- (*image_info->conv) (image, x0, y0, width, height,
+ (*image_info->conv) (image_info, image, x0, y0, 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
-gdk_rgb_convert_32_generic_d (GdkImage *image,
+gdk_rgb_convert_32_generic_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- gdk_rgb_32_to_stage (buf, rowstride, width, height);
+ gdk_rgb_32_to_stage (image_info, buf, rowstride, width, height);
- (*image_info->conv_d) (image, x0, y0, width, height,
+ (*image_info->conv_d) (image_info, image, x0, y0, width, height,
image_info->stage_buf, STAGE_ROWSTRIDE,
x_align, y_align, cmap);
}
/* This is slow. Speed me up, please. */
static void
-gdk_rgb_gray_to_stage (guchar *buf, gint rowstride, gint width, gint height)
+gdk_rgb_gray_to_stage (GdkRgbInfo *image_info,
+ guchar *buf, gint rowstride, gint width, gint height)
{
gint x, y;
guchar *pi_start, *po_start;
guchar gray;
pi_start = buf;
- po_start = gdk_rgb_ensure_stage ();
+ po_start = gdk_rgb_ensure_stage (image_info);
for (y = 0; y < height; y++)
{
pi = pi_start;
/* Generic gray conversion function - convert to 24bit packed, then go
from there. */
static void
-gdk_rgb_convert_gray_generic (GdkImage *image,
+gdk_rgb_convert_gray_generic (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- gdk_rgb_gray_to_stage (buf, rowstride, width, height);
+ gdk_rgb_gray_to_stage (image_info, buf, rowstride, width, height);
- (*image_info->conv) (image, x0, y0, width, height,
+ (*image_info->conv) (image_info, image, x0, y0, width, height,
image_info->stage_buf, STAGE_ROWSTRIDE,
x_align, y_align, cmap);
}
static void
-gdk_rgb_convert_gray_generic_d (GdkImage *image,
+gdk_rgb_convert_gray_generic_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- gdk_rgb_gray_to_stage (buf, rowstride, width, height);
+ gdk_rgb_gray_to_stage (image_info, buf, rowstride, width, height);
- (*image_info->conv_d) (image, x0, y0, width, height,
+ (*image_info->conv_d) (image_info, image, x0, y0, width, height,
image_info->stage_buf, STAGE_ROWSTRIDE,
x_align, y_align, cmap);
}
/* Render grayscale using indexed method. */
static void
-gdk_rgb_convert_gray_cmap (GdkImage *image,
+gdk_rgb_convert_gray_cmap (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- (*image_info->conv_indexed) (image, x0, y0, width, height,
+ (*image_info->conv_indexed) (image_info, image, x0, y0, width, height,
buf, rowstride,
x_align, y_align, image_info->gray_cmap);
}
#if 0
static void
-gdk_rgb_convert_gray_cmap_d (GdkImage *image,
- gint x0, gint y0, gint width, gint height,
- guchar *buf, gint rowstride,
- gint x_align, gint y_align, GdkRgbCmap *cmap)
+gdk_rgb_convert_gray_cmap_d (GdkRgbInfo *image_info, GdkImage *image,
+ gint x0, gint y0, gint width, gint height,
+ guchar *buf, gint rowstride,
+ gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- (*image_info->conv_indexed_d) (image, x0, y0, width, height,
+ (*image_info->conv_indexed_d) (image_info, image, x0, y0, width, height,
buf, rowstride,
x_align, y_align, image_info->gray_cmap);
}
/* This is slow. Speed me up, please. */
static void
-gdk_rgb_indexed_to_stage (guchar *buf, gint rowstride, gint width, gint height,
+gdk_rgb_indexed_to_stage (GdkRgbInfo *image_info,
+ guchar *buf, gint rowstride, gint width, gint height,
GdkRgbCmap *cmap)
{
gint x, y;
gint rgb;
pi_start = buf;
- po_start = gdk_rgb_ensure_stage ();
+ po_start = gdk_rgb_ensure_stage (image_info);
for (y = 0; y < height; y++)
{
pi = pi_start;
/* Generic gray conversion function - convert to 24bit packed, then go
from there. */
static void
-gdk_rgb_convert_indexed_generic (GdkImage *image,
+gdk_rgb_convert_indexed_generic (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align, GdkRgbCmap *cmap)
{
- gdk_rgb_indexed_to_stage (buf, rowstride, width, height, cmap);
+ gdk_rgb_indexed_to_stage (image_info, buf, rowstride, width, height, cmap);
- (*image_info->conv) (image, x0, y0, width, height,
+ (*image_info->conv) (image_info, image, x0, y0, width, height,
image_info->stage_buf, STAGE_ROWSTRIDE,
x_align, y_align, cmap);
}
static void
-gdk_rgb_convert_indexed_generic_d (GdkImage *image,
+gdk_rgb_convert_indexed_generic_d (GdkRgbInfo *image_info, GdkImage *image,
gint x0, gint y0, gint width, gint height,
guchar *buf, gint rowstride,
gint x_align, gint y_align,
GdkRgbCmap *cmap)
{
- gdk_rgb_indexed_to_stage (buf, rowstride, width, height, cmap);
+ gdk_rgb_indexed_to_stage (image_info, buf, rowstride, width, height, cmap);
- (*image_info->conv_d) (image, x0, y0, width, height,
+ (*image_info->conv_d) (image_info, image, x0, y0, 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
-gdk_rgb_select_conv (GdkImage *image)
+gdk_rgb_select_conv (GdkRgbInfo *image_info, GdkImage *image)
{
GdkByteOrder byte_order;
gint depth, bpp, byterev;
GdkRgbConvFunc conv_32, conv_32_d;
GdkRgbConvFunc conv_gray, conv_gray_d;
GdkRgbConvFunc conv_indexed, conv_indexed_d;
+ gboolean mask_rgb, mask_bgr;
depth = image_info->visual->depth;
- bpp = image->bpp;
+
+ /* FIXME: save the bpp in the image; this is hack that works for
+ * common visuals, not otherwise.
+ */
+ if (depth <= 8)
+ bpp = depth;
+ else
+ bpp = 8 * image->bpp;
byte_order = image->byte_order;
+ if (gdk_rgb_verbose)
+ g_print ("Chose visual type=%s depth=%d, image bpp=%d, %s first\n",
+ visual_names[image_info->visual->type], image_info->visual->depth,
+ bpp, byte_order == GDK_LSB_FIRST ? "lsb" : "msb");
-#ifdef WORDS_BIGENDIAN
+#if G_BYTE_ORDER == G_BIG_ENDIAN
byterev = (byte_order == GDK_LSB_FIRST);
#else
byterev = (byte_order == GDK_MSB_FIRST);
green_mask = image_info->visual->green_mask;
blue_mask = image_info->visual->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;
image_info->dith_default = FALSE;
- if (bpp == 2 && depth == 16 && !byterev &&
+ if (image_info->bitmap)
+ conv = gdk_rgb_convert_1;
+ else if (bpp == 16 && depth == 16 && !byterev &&
red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f)
{
conv = gdk_rgb_convert_565;
conv_d = gdk_rgb_convert_565_d;
conv_gray = gdk_rgb_convert_565_gray;
+ gdk_rgb_preprocess_dm_565 ();
}
- else if (bpp == 2 && depth == 16 &&
+ else if (bpp == 16 && depth == 16 &&
vtype == GDK_VISUAL_TRUE_COLOR && byterev &&
red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f)
conv = gdk_rgb_convert_565_br;
- else if (bpp == 2 && depth == 15 &&
+ else if (bpp == 16 && depth == 15 &&
vtype == GDK_VISUAL_TRUE_COLOR && !byterev &&
red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f)
conv = gdk_rgb_convert_555;
- else if (bpp == 2 && depth == 15 &&
+ else if (bpp == 16 && depth == 15 &&
vtype == GDK_VISUAL_TRUE_COLOR && byterev &&
red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f)
conv = gdk_rgb_convert_555_br;
- /* I'm not 100% sure about the 24bpp tests */
- else if (bpp == 3 && depth == 24 &&
- vtype == GDK_VISUAL_TRUE_COLOR && byte_order == GDK_LSB_FIRST &&
- red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff)
+ /* I'm not 100% sure about the 24bpp tests - but testing will show*/
+ else if (bpp == 24 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ ((mask_rgb && byte_order == GDK_LSB_FIRST) ||
+ (mask_bgr && byte_order == GDK_MSB_FIRST)))
conv = gdk_rgb_convert_888_lsb;
- else if (bpp == 3 && depth == 24 &&
- vtype == GDK_VISUAL_TRUE_COLOR && byte_order == GDK_MSB_FIRST &&
- red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff)
+ else if (bpp == 24 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ ((mask_rgb && byte_order == GDK_MSB_FIRST) ||
+ (mask_bgr && byte_order == GDK_LSB_FIRST)))
conv = gdk_rgb_convert_888_msb;
- else if (bpp == 4 && depth == 24 &&
- vtype == GDK_VISUAL_TRUE_COLOR && !byterev &&
- red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff)
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_rgb && byte_order == GDK_LSB_FIRST))
+ conv = gdk_rgb_convert_0888_br;
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_rgb && byte_order == GDK_MSB_FIRST))
conv = gdk_rgb_convert_0888;
- else if (bpp == 4 && depth == 24 &&
- vtype == GDK_VISUAL_TRUE_COLOR && byterev &&
- red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff)
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_bgr && byte_order == GDK_MSB_FIRST))
+ conv = gdk_rgb_convert_8880_br;
+#else
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_rgb && byte_order == GDK_MSB_FIRST))
conv = gdk_rgb_convert_0888_br;
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_rgb && byte_order == GDK_LSB_FIRST))
+ conv = gdk_rgb_convert_0888;
+ else if (bpp == 32 && depth == 24 && vtype == GDK_VISUAL_TRUE_COLOR &&
+ (mask_bgr && byte_order == GDK_LSB_FIRST))
+ conv = gdk_rgb_convert_8880_br;
+#endif
else if (vtype == GDK_VISUAL_TRUE_COLOR && byte_order == GDK_LSB_FIRST)
{
else if (vtype == GDK_VISUAL_TRUE_COLOR && byte_order == GDK_MSB_FIRST)
{
conv = gdk_rgb_convert_truecolor_msb;
- conv = gdk_rgb_convert_truecolor_msb_d;
+ conv_d = gdk_rgb_convert_truecolor_msb_d;
}
- else if (bpp == 1 && depth == 8 && (vtype == GDK_VISUAL_PSEUDO_COLOR
+ else if (bpp == 8 && depth == 8 && (vtype == GDK_VISUAL_PSEUDO_COLOR
#ifdef ENABLE_GRAYSCALE
|| vtype == GDK_VISUAL_GRAYSCALE
#endif
conv_indexed = gdk_rgb_convert_8_indexed;
conv_gray = gdk_rgb_convert_gray_cmap;
}
- else if (bpp == 1 && depth == 8 && (vtype == GDK_VISUAL_STATIC_GRAY
+ else if (bpp == 8 && depth == 8 && (vtype == GDK_VISUAL_STATIC_GRAY
#ifdef not_ENABLE_GRAYSCALE
|| vtype == GDK_VISUAL_GRAYSCALE
#endif
conv = gdk_rgb_convert_gray8;
conv_gray = gdk_rgb_convert_gray8_gray;
}
+ else if (bpp == 8 && depth < 8 && depth >= 2 &&
+ (vtype == GDK_VISUAL_STATIC_GRAY
+ || vtype == GDK_VISUAL_GRAYSCALE))
+ {
+ conv = gdk_rgb_convert_gray4;
+ conv_d = gdk_rgb_convert_gray4_d;
+ }
+ else if (bpp == 8 && depth < 8 && depth >= 3)
+ {
+ conv = gdk_rgb_convert_4;
+ }
+ else if (bpp == 4 && depth <= 4 && depth >= 2 &&
+ (vtype == GDK_VISUAL_STATIC_GRAY
+ || vtype == GDK_VISUAL_GRAYSCALE))
+ {
+ conv = gdk_rgb_convert_gray4_pack;
+ conv_d = gdk_rgb_convert_gray4_d_pack;
+ }
if (conv_d == NULL)
conv_d = conv;
image_info->conv_indexed_d = conv_indexed_d;
}
-static gint horiz_idx;
-static gint horiz_y = IMAGE_HEIGHT;
-static gint vert_idx;
-static gint vert_x = IMAGE_WIDTH;
-static gint tile_idx;
-static gint tile_x = IMAGE_WIDTH;
-static gint tile_y1 = IMAGE_HEIGHT;
-static gint tile_y2 = IMAGE_HEIGHT;
-
#ifdef VERBOSE
static gint sincelast;
#endif
#undef NO_FLUSH
static gint
-gdk_rgb_alloc_scratch_image (void)
+gdk_rgb_alloc_scratch_image (GdkRgbInfo *image_info)
{
- if (static_image_idx == N_IMAGES)
+ if (image_info->static_image_idx == N_REGIONS)
{
#ifndef NO_FLUSH
gdk_flush ();
g_print ("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;
+ image_info->static_image_idx = 0;
+
+ /* Mark all regions that we might be filling in as completely
+ * full, to force new tiles to be allocated for subsequent
+ * images
+ */
+ image_info->horiz_y = REGION_HEIGHT;
+ image_info->vert_x = REGION_WIDTH;
+ image_info->tile_x = REGION_WIDTH;
+ image_info->tile_y1 = image_info->tile_y2 = REGION_HEIGHT;
}
- return static_image_idx++;
+ return image_info->static_image_idx++;
}
static GdkImage *
-gdk_rgb_alloc_scratch (gint width, gint height, gint *x0, gint *y0)
+gdk_rgb_alloc_scratch (GdkRgbInfo *image_info,
+ gint width, gint height, gint *x0, gint *y0)
{
GdkImage *image;
gint idx;
-
- if (width >= (IMAGE_WIDTH >> 1))
+ if (width >= (REGION_WIDTH >> 1))
{
- if (height >= (IMAGE_HEIGHT >> 1))
+ if (height >= (REGION_HEIGHT >> 1))
{
- idx = gdk_rgb_alloc_scratch_image ();
+ idx = gdk_rgb_alloc_scratch_image (image_info);
*x0 = 0;
*y0 = 0;
}
else
{
- if (height + horiz_y > IMAGE_HEIGHT)
+ if (height + image_info->horiz_y > REGION_HEIGHT)
{
- horiz_idx = gdk_rgb_alloc_scratch_image ();
- horiz_y = 0;
+ image_info->horiz_idx = gdk_rgb_alloc_scratch_image (image_info);
+ image_info->horiz_y = 0;
}
- idx = horiz_idx;
+ idx = image_info->horiz_idx;
*x0 = 0;
- *y0 = horiz_y;
- horiz_y += height;
+ *y0 = image_info->horiz_y;
+ image_info->horiz_y += height;
}
}
else
{
- if (height >= (IMAGE_HEIGHT >> 1))
+ if (height >= (REGION_HEIGHT >> 1))
{
- if (width + vert_x > IMAGE_WIDTH)
+ if (width + image_info->vert_x > REGION_WIDTH)
{
- vert_idx = gdk_rgb_alloc_scratch_image ();
- vert_x = 0;
+ image_info->vert_idx = gdk_rgb_alloc_scratch_image (image_info);
+ image_info->vert_x = 0;
}
- idx = vert_idx;
- *x0 = vert_x;
+ idx = image_info->vert_idx;
+ *x0 = image_info->vert_x;
*y0 = 0;
- vert_x += (width + 3) & -4;
+ /* using 3 and -4 would be slightly more efficient on 32-bit machines
+ with > 1bpp displays */
+ image_info->vert_x += (width + 7) & -8;
}
else
{
- if (width + tile_x > IMAGE_WIDTH)
+ if (width + image_info->tile_x > REGION_WIDTH)
{
- tile_y1 = tile_y2;
- tile_x = 0;
+ image_info->tile_y1 = image_info->tile_y2;
+ image_info->tile_x = 0;
}
- if (height + tile_y1 > IMAGE_HEIGHT)
+ if (height + image_info->tile_y1 > REGION_HEIGHT)
{
- tile_idx = gdk_rgb_alloc_scratch_image ();
- tile_x = 0;
- tile_y1 = 0;
- tile_y2 = 0;
+ image_info->tile_idx = gdk_rgb_alloc_scratch_image (image_info);
+ image_info->tile_x = 0;
+ image_info->tile_y1 = 0;
+ image_info->tile_y2 = 0;
}
- if (height + tile_y1 > tile_y2)
- tile_y2 = height + tile_y1;
- idx = tile_idx;
- *x0 = tile_x;
- *y0 = tile_y1;
- tile_x += (width + 3) & -4;
+ if (height + image_info->tile_y1 > image_info->tile_y2)
+ image_info->tile_y2 = height + image_info->tile_y1;
+ idx = image_info->tile_idx;
+ *x0 = image_info->tile_x;
+ *y0 = image_info->tile_y1;
+ image_info->tile_x += (width + 7) & -8;
}
}
- image = static_image[idx];
+ image = image_info->static_image[idx * image_info->n_images / N_REGIONS];
+ *x0 += REGION_WIDTH * (idx % (N_REGIONS / image_info->n_images));
#ifdef VERBOSE
g_print ("index %d, x %d, y %d (%d x %d)\n", idx, *x0, *y0, width, height);
sincelast++;
}
static void
-gdk_draw_rgb_image_core (GdkDrawable *drawable,
+gdk_draw_rgb_image_core (GdkRgbInfo *image_info,
+ GdkDrawable *drawable,
GdkGC *gc,
gint x,
gint y,
gint pixstride,
gint rowstride,
GdkRgbConvFunc conv,
- GdkRgbCmap *cmap)
+ GdkRgbCmap *cmap,
+ gint xdith,
+ gint ydith)
{
gint y0, x0;
gint xs0, ys0;
gint width1, height1;
guchar *buf_ptr;
- for (y0 = 0; y0 < height; y0 += IMAGE_HEIGHT)
+ if (image_info->bitmap)
+ {
+ if (image_info->own_gc == NULL)
+ {
+ GdkColor color;
+
+ image_info->own_gc = gdk_gc_new (drawable);
+ gdk_color_white (image_info->cmap, &color);
+ gdk_gc_set_foreground (image_info->own_gc, &color);
+ gdk_color_black (image_info->cmap, &color);
+ gdk_gc_set_background (image_info->own_gc, &color);
+ }
+ gc = image_info->own_gc;
+ }
+ for (y0 = 0; y0 < height; y0 += REGION_HEIGHT)
{
- height1 = MIN (height - y0, IMAGE_HEIGHT);
- for (x0 = 0; x0 < width; x0 += IMAGE_WIDTH)
+ height1 = MIN (height - y0, REGION_HEIGHT);
+ for (x0 = 0; x0 < width; x0 += REGION_WIDTH)
{
- width1 = MIN (width - x0, IMAGE_WIDTH);
+ width1 = MIN (width - x0, REGION_WIDTH);
buf_ptr = buf + y0 * rowstride + x0 * pixstride;
- image = gdk_rgb_alloc_scratch (width1, height1, &xs0, &ys0);
+ image = gdk_rgb_alloc_scratch (image_info, width1, height1, &xs0, &ys0);
- conv (image, xs0, ys0, width1, height1, buf_ptr, rowstride,
- x + x0, y + y0, cmap);
+ conv (image_info, image, xs0, ys0, width1, height1, buf_ptr, rowstride,
+ x + x0 + xdith, y + y0 + ydith, cmap);
+#ifndef DONT_ACTUALLY_DRAW
gdk_draw_image (drawable, gc,
image, xs0, ys0, x + x0, y + y0, width1, height1);
+#endif
}
}
}
+static GdkRgbInfo *
+gdk_rgb_get_info_from_drawable (GdkDrawable *drawable)
+{
+ GdkColormap *cmap = gdk_drawable_get_colormap (drawable);
+
+ if (!cmap)
+ {
+ /* This guessing is required to maintain backward compatibility,
+ * but would otherwise be a bad thing
+ */
+
+ gint depth = gdk_drawable_get_depth (drawable);
+ GdkColormap *rgb_cmap = gdk_rgb_get_colormap();
+ if (depth == gdk_colormap_get_visual (rgb_cmap)->depth)
+ cmap = rgb_cmap;
+ else
+ {
+ g_warning ("The gdk_draw_*_image require the drawable argument to\n"
+ "have a specified colormap. All windows have a colormap,\n"
+ "however, pixmaps only have colormap by default if they\n"
+ "were created with a non-NULL window argument. Otherwise\n"
+ "a colormap must be set on them with gdk_drawable_set_colormap");
+ return NULL;
+ }
+ }
+
+ return gdk_rgb_get_info_from_colormap (cmap);
+}
void
gdk_draw_rgb_image (GdkDrawable *drawable,
guchar *rgb_buf,
gint rowstride)
{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
+ if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
+ !image_info->dith_default))
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ rgb_buf, 3, rowstride, image_info->conv, NULL,
+ 0, 0);
+ else
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ rgb_buf, 3, rowstride, image_info->conv_d, NULL,
+ 0, 0);
+}
+
+void
+gdk_draw_rgb_image_dithalign (GdkDrawable *drawable,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ GdkRgbDither dith,
+ guchar *rgb_buf,
+ gint rowstride,
+ gint xdith,
+ gint ydith)
+{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
!image_info->dith_default))
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
- rgb_buf, 3, rowstride, image_info->conv, NULL);
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ rgb_buf, 3, rowstride, image_info->conv, NULL,
+ xdith, ydith);
else
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
- rgb_buf, 3, rowstride, image_info->conv_d, NULL);
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ rgb_buf, 3, rowstride, image_info->conv_d, NULL,
+ xdith, ydith);
}
void
guchar *buf,
gint rowstride)
{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
+ if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
+ !image_info->dith_default))
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ buf, 4, rowstride,
+ image_info->conv_32, NULL, 0, 0);
+ else
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
+ buf, 4, rowstride,
+ image_info->conv_32_d, NULL, 0, 0);
+}
+
+void
+gdk_draw_rgb_32_image_dithalign (GdkDrawable *drawable,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ GdkRgbDither dith,
+ guchar *buf,
+ gint rowstride,
+ gint xdith,
+ gint ydith)
+{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
!image_info->dith_default))
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 4, rowstride,
- image_info->conv_32, NULL);
+ image_info->conv_32, NULL, xdith, ydith);
else
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 4, rowstride,
- image_info->conv_32_d, NULL);
+ image_info->conv_32_d, NULL, xdith, ydith);
}
static void
guchar *buf,
gint rowstride)
{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
if (image_info->bpp == 1 &&
image_info->gray_cmap == NULL &&
(image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
!image_info->dith_default))
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 1, rowstride,
- image_info->conv_gray, NULL);
+ image_info->conv_gray, NULL, 0, 0);
else
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 1, rowstride,
- image_info->conv_gray_d, NULL);
+ image_info->conv_gray_d, NULL, 0, 0);
}
-GdkRgbCmap *
-gdk_rgb_cmap_new (guint32 *colors, gint n_colors)
+guchar lut[256]; /* for 8-bit modes */
+
+static GdkRgbCmapInfo *
+gdk_rgb_cmap_get_info (GdkRgbCmap *cmap,
+ GdkRgbInfo *image_info)
{
- GdkRgbCmap *cmap;
+ GSList *tmp_list;
+ GdkRgbCmapInfo *cmap_info;
int i, j;
guint32 rgb;
+ /* We only need a LUT for pseudo-color and grayscale cmaps */
+ if (image_info->bpp != 1 ||
+ !(image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
+ image_info->visual->type == GDK_VISUAL_GRAYSCALE))
+ return NULL;
+
+ tmp_list = cmap->info_list;
+
+ while (tmp_list)
+ {
+ cmap_info = tmp_list->data;
+ if (cmap_info->image_info == image_info)
+ return cmap_info;
+ }
+
+ cmap_info = g_new (GdkRgbCmapInfo, 1);
+ cmap_info->image_info = image_info;
+ cmap_info->cmap = cmap;
+
+ for (i = 0; i < cmap->n_colors; i++)
+ {
+ rgb = cmap->colors[i];
+ j = ((rgb & 0xf00000) >> 12) |
+ ((rgb & 0xf000) >> 8) |
+ ((rgb & 0xf0) >> 4);
+#ifdef VERBOSE
+ g_print ("%d %x %x %d\n", i, j, image_info->colorcube[j]);
+#endif
+ cmap_info->lut[i] = image_info->colorcube[j];
+ }
+
+ cmap->info_list = g_slist_prepend (cmap->info_list, cmap_info);
+ image_info->cmap_info_list = g_slist_prepend (image_info->cmap_info_list, cmap_info);
+
+ return cmap_info;
+}
+
+GdkRgbCmap *
+gdk_rgb_cmap_new (guint32 *colors, gint n_colors)
+{
+ GdkRgbCmap *cmap;
+
g_return_val_if_fail (n_colors >= 0, NULL);
g_return_val_if_fail (n_colors <= 256, NULL);
+
cmap = g_new (GdkRgbCmap, 1);
+
+ cmap->n_colors = n_colors;
memcpy (cmap->colors, colors, n_colors * sizeof(guint32));
- if (image_info->bpp == 1 &&
- (image_info->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
- image_info->visual->type == GDK_VISUAL_GRAYSCALE))
- for (i = 0; i < n_colors; i++)
- {
- rgb = colors[i];
- j = ((rgb & 0xf00000) >> 12) |
- ((rgb & 0xf000) >> 8) |
- ((rgb & 0xf0) >> 4);
-#ifdef VERBOSE
- g_print ("%d %x %x %d\n", i, j, colorcube[j]);
-#endif
- cmap->lut[i] = colorcube[j];
- }
+
+ cmap->info_list = NULL;
+
return cmap;
}
void
gdk_rgb_cmap_free (GdkRgbCmap *cmap)
{
+ GSList *tmp_list;
+
+ tmp_list = cmap->info_list;
+ while (tmp_list)
+ {
+ GdkRgbCmapInfo *cmap_info = tmp_list->data;
+ cmap_info->image_info->cmap_info_list = g_slist_remove (cmap_info->image_info->cmap_info_list, cmap_info);
+ g_free (cmap_info);
+ }
+ g_slist_free (cmap->info_list);
+
g_free (cmap);
}
gint rowstride,
GdkRgbCmap *cmap)
{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_drawable (drawable);
+ if (!image_info)
+ return;
+
if (dith == GDK_RGB_DITHER_NONE || (dith == GDK_RGB_DITHER_NORMAL &&
!image_info->dith_default))
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 1, rowstride,
- image_info->conv_indexed, cmap);
+ image_info->conv_indexed, cmap, 0, 0);
else
- gdk_draw_rgb_image_core (drawable, gc, x, y, width, height,
+ gdk_draw_rgb_image_core (image_info, drawable, gc, x, y, width, height,
buf, 1, rowstride,
- image_info->conv_indexed_d, cmap);
+ image_info->conv_indexed_d, cmap, 0, 0);
}
gboolean
-gdk_rgb_ditherable (void)
+gdk_rgb_colormap_ditherable (GdkColormap *cmap)
{
+ GdkRgbInfo *image_info = gdk_rgb_get_info_from_colormap (cmap);
+
return (image_info->conv != image_info->conv_d);
}
+gboolean
+gdk_rgb_ditherable (void)
+{
+ return gdk_rgb_colormap_ditherable (gdk_rgb_get_colormap ());
+}
+
GdkColormap *
-gdk_rgb_get_cmap (void)
+gdk_rgb_get_colormap (void)
{
- return image_info->cmap;
+ static GdkColormap *cmap = NULL;
+
+ if (!cmap)
+ {
+ GdkRgbInfo *image_info = gdk_rgb_create_info (gdk_rgb_choose_visual (), NULL);
+ cmap = image_info->cmap;
+ }
+
+ return cmap;
}
GdkVisual *
gdk_rgb_get_visual (void)
{
- return image_info->visual;
+ return gdk_colormap_get_visual (gdk_rgb_get_colormap ());
}
projects / ~andy / gtk / blobdiff