#include <gdk/gdk.h>
#include "gdkx.h"
-static void gdk_visual_add (GdkVisual *visual);
static void gdk_visual_decompose_mask (gulong mask,
gint *shift,
gint *prec);
-static guint gdk_visual_hash (Visual *key);
-static gint gdk_visual_compare (Visual *a,
- Visual *b);
-
static GdkVisualPrivate *system_visual;
-static GdkVisualPrivate *visuals;
-static gint nvisuals;
-static gint available_depths[7];
-static gint navailable_depths;
+static gint available_depths[1];
-static GdkVisualType available_types[6];
-static gint navailable_types;
+static GdkVisualType available_types[1];
#ifdef G_ENABLE_DEBUG
#endif /* G_ENABLE_DEBUG */
-static GHashTable *visual_hash = NULL;
-
void
gdk_visual_init (void)
{
int rastercaps, numcolors, sizepalette, colorres, bitspixel;
Visual *default_xvisual;
- GdkVisualPrivate temp_visual;
- int nxvisuals;
- int i, j;
- nxvisuals = 1;
- visuals = g_new (GdkVisualPrivate, nxvisuals);
+ system_visual = g_new (GdkVisualPrivate, 1);
+
+ bitspixel = GetDeviceCaps (gdk_DC, BITSPIXEL);
+ rastercaps = GetDeviceCaps (gdk_DC, RASTERCAPS);
+ default_xvisual = g_new (Visual, 1);
+ system_visual->xvisual = default_xvisual;
+ system_visual->xvisual->visualid = 0;
+ system_visual->xvisual->bitspixel = bitspixel;
- nvisuals = 0;
- for (i = 0; i < nxvisuals; i++)
+ if (rastercaps & RC_PALETTE)
+ {
+ system_visual->visual.type = GDK_VISUAL_PSEUDO_COLOR;
+ numcolors = GetDeviceCaps (gdk_DC, NUMCOLORS);
+ sizepalette = GetDeviceCaps (gdk_DC, SIZEPALETTE);
+ colorres = GetDeviceCaps (gdk_DC, COLORRES);
+ system_visual->xvisual->map_entries = sizepalette;
+ }
+ else if (bitspixel == 1)
+ {
+ system_visual->visual.type = GDK_VISUAL_STATIC_GRAY;
+ system_visual->xvisual->map_entries = 2;
+ }
+ else if (bitspixel == 4)
+ {
+ system_visual->visual.type = GDK_VISUAL_STATIC_COLOR;
+ system_visual->xvisual->map_entries = 16;
+ }
+ else if (bitspixel == 8)
+ {
+ system_visual->visual.type = GDK_VISUAL_STATIC_COLOR;
+ system_visual->xvisual->map_entries = 256;
+ }
+ else if (bitspixel == 16)
{
- if (1)
+ system_visual->visual.type = GDK_VISUAL_TRUE_COLOR;
+#if 1
+ /* This code by Mike Enright,
+ * see http://www.users.cts.com/sd/m/menright/display.html
+ */
+ memset (&bmi, 0, sizeof (bmi));
+ bmi.bi.biSize = sizeof (bmi.bi);
+
+ hbm = CreateCompatibleBitmap (gdk_DC, 1, 1);
+ GetDIBits (gdk_DC, hbm, 0, 1, NULL,
+ (BITMAPINFO *) &bmi, DIB_RGB_COLORS);
+ GetDIBits (gdk_DC, hbm, 0, 1, NULL,
+ (BITMAPINFO *) &bmi, DIB_RGB_COLORS);
+ DeleteObject (hbm);
+
+ if (bmi.bi.biCompression != BI_BITFIELDS)
{
- bitspixel = GetDeviceCaps (gdk_DC, BITSPIXEL);
- rastercaps = GetDeviceCaps (gdk_DC, RASTERCAPS);
- default_xvisual = g_new (Visual, 1);
- visuals[nvisuals].xvisual = default_xvisual;
- visuals[nvisuals].xvisual->visualid = nvisuals;
- visuals[nvisuals].xvisual->bitspixel = bitspixel;
-
- if (rastercaps & RC_PALETTE)
+ /* Either BI_RGB or BI_RLE_something
+ * .... or perhaps (!!) something else.
+ * Theoretically biCompression might be
+ * mmioFourCC('c','v','i','d') but I doubt it.
+ */
+ if (bmi.bi.biCompression == BI_RGB)
{
- visuals[nvisuals].visual.type = GDK_VISUAL_PSEUDO_COLOR;
- numcolors = GetDeviceCaps (gdk_DC, NUMCOLORS);
- sizepalette = GetDeviceCaps (gdk_DC, SIZEPALETTE);
- colorres = GetDeviceCaps (gdk_DC, COLORRES);
- visuals[nvisuals].xvisual->map_entries = sizepalette;
+ /* It's 555 */
+ bitspixel = 15;
+ system_visual->visual.red_mask = 0x00007C00;
+ system_visual->visual.green_mask = 0x000003E0;
+ system_visual->visual.blue_mask = 0x0000001F;
}
- else if (bitspixel == 1)
- {
- visuals[nvisuals].visual.type = GDK_VISUAL_STATIC_GRAY;
- visuals[nvisuals].xvisual->map_entries = 2;
- }
- else if (bitspixel == 4)
+ else
{
- visuals[nvisuals].visual.type = GDK_VISUAL_STATIC_COLOR;
- visuals[nvisuals].xvisual->map_entries = 16;
+ g_assert_not_reached ();
}
- else if (bitspixel == 8)
+ }
+ else
+ {
+ DWORD allmasks =
+ bmi.u.fields[0] | bmi.u.fields[1] | bmi.u.fields[2];
+ int k = 0;
+ while (allmasks)
{
- visuals[nvisuals].visual.type = GDK_VISUAL_STATIC_COLOR;
- visuals[nvisuals].xvisual->map_entries = 256;
+ if (allmasks&1)
+ k++;
+ allmasks/=2;
}
- else if (bitspixel == 16)
- {
- visuals[nvisuals].visual.type = GDK_VISUAL_TRUE_COLOR;
-#if 1
- /* This code by Mike Enright,
- * see http://www.users.cts.com/sd/m/menright/display.html
- */
- memset (&bmi, 0, sizeof (bmi));
- bmi.bi.biSize = sizeof (bmi.bi);
-
- hbm = CreateCompatibleBitmap (gdk_DC, 1, 1);
- GetDIBits (gdk_DC, hbm, 0, 1, NULL,
- (BITMAPINFO *) &bmi, DIB_RGB_COLORS);
- GetDIBits (gdk_DC, hbm, 0, 1, NULL,
- (BITMAPINFO *) &bmi, DIB_RGB_COLORS);
- DeleteObject (hbm);
-
- if (bmi.bi.biCompression != BI_BITFIELDS)
- {
- /* Either BI_RGB or BI_RLE_something
- * .... or perhaps (!!) something else.
- * Theoretically biCompression might be
- * mmioFourCC('c','v','i','d') but I doubt it.
- */
- if (bmi.bi.biCompression == BI_RGB)
- {
- /* It's 555 */
- bitspixel = 15;
- visuals[nvisuals].visual.red_mask = 0x00007C00;
- visuals[nvisuals].visual.green_mask = 0x000003E0;
- visuals[nvisuals].visual.blue_mask = 0x0000001F;
- }
- else
- {
- g_assert_not_reached ();
- }
- }
- else
- {
- DWORD allmasks =
- bmi.u.fields[0] | bmi.u.fields[1] | bmi.u.fields[2];
- int k = 0;
- while (allmasks)
- {
- if (allmasks&1)
- k++;
- allmasks/=2;
- }
- bitspixel = k;
- visuals[nvisuals].visual.red_mask = bmi.u.fields[0];
- visuals[nvisuals].visual.green_mask = bmi.u.fields[1];
- visuals[nvisuals].visual.blue_mask = bmi.u.fields[2];
- }
+ bitspixel = k;
+ system_visual->visual.red_mask = bmi.u.fields[0];
+ system_visual->visual.green_mask = bmi.u.fields[1];
+ system_visual->visual.blue_mask = bmi.u.fields[2];
+ }
#else
- /* Old, incorrect (but still working) code. */
+ /* Old, incorrect (but still working) code. */
#if 0
- visuals[nvisuals].visual.red_mask = 0x0000F800;
- visuals[nvisuals].visual.green_mask = 0x000007E0;
- visuals[nvisuals].visual.blue_mask = 0x0000001F;
+ system_visual->visual.red_mask = 0x0000F800;
+ system_visual->visual.green_mask = 0x000007E0;
+ system_visual->visual.blue_mask = 0x0000001F;
#else
- visuals[nvisuals].visual.red_mask = 0x00007C00;
- visuals[nvisuals].visual.green_mask = 0x000003E0;
- visuals[nvisuals].visual.blue_mask = 0x0000001F;
+ system_visual->visual.red_mask = 0x00007C00;
+ system_visual->visual.green_mask = 0x000003E0;
+ system_visual->visual.blue_mask = 0x0000001F;
#endif
#endif
- }
- else if (bitspixel == 24 || bitspixel == 32)
- {
- visuals[nvisuals].visual.type = GDK_VISUAL_TRUE_COLOR;
- visuals[nvisuals].visual.red_mask = 0x00FF0000;
- visuals[nvisuals].visual.green_mask = 0x0000FF00;
- visuals[nvisuals].visual.blue_mask = 0x000000FF;
- }
- else
- g_error ("gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
-
- visuals[nvisuals].visual.depth = bitspixel;
- visuals[nvisuals].visual.byte_order = GDK_LSB_FIRST;
- visuals[nvisuals].visual.bits_per_rgb = 42; /* Not used? */
-
- if ((visuals[nvisuals].visual.type == GDK_VISUAL_TRUE_COLOR) ||
- (visuals[nvisuals].visual.type == GDK_VISUAL_DIRECT_COLOR))
- {
- gdk_visual_decompose_mask (visuals[nvisuals].visual.red_mask,
- &visuals[nvisuals].visual.red_shift,
- &visuals[nvisuals].visual.red_prec);
-
- gdk_visual_decompose_mask (visuals[nvisuals].visual.green_mask,
- &visuals[nvisuals].visual.green_shift,
- &visuals[nvisuals].visual.green_prec);
-
- gdk_visual_decompose_mask (visuals[nvisuals].visual.blue_mask,
- &visuals[nvisuals].visual.blue_shift,
- &visuals[nvisuals].visual.blue_prec);
- visuals[nvisuals].xvisual->map_entries =
- 1 << (MAX (visuals[nvisuals].visual.red_prec,
- MAX (visuals[nvisuals].visual.green_prec,
- visuals[nvisuals].visual.blue_prec)));
- }
- else
- {
- visuals[nvisuals].visual.red_mask = 0;
- visuals[nvisuals].visual.red_shift = 0;
- visuals[nvisuals].visual.red_prec = 0;
-
- visuals[nvisuals].visual.green_mask = 0;
- visuals[nvisuals].visual.green_shift = 0;
- visuals[nvisuals].visual.green_prec = 0;
-
- visuals[nvisuals].visual.blue_mask = 0;
- visuals[nvisuals].visual.blue_shift = 0;
- visuals[nvisuals].visual.blue_prec = 0;
- }
- visuals[nvisuals].visual.colormap_size = visuals[nvisuals].xvisual->map_entries;
-
- nvisuals += 1;
- }
}
-
- for (i = 0; i < nvisuals; i++)
+ else if (bitspixel == 24 || bitspixel == 32)
{
- for (j = i+1; j < nvisuals; j++)
- {
- if (visuals[j].visual.depth >= visuals[i].visual.depth)
- {
- if ((visuals[j].visual.depth == 8) && (visuals[i].visual.depth == 8))
- {
- if (visuals[j].visual.type == GDK_VISUAL_PSEUDO_COLOR)
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- else if ((visuals[i].visual.type != GDK_VISUAL_PSEUDO_COLOR) &&
- visuals[j].visual.type > visuals[i].visual.type)
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- }
- else if ((visuals[j].visual.depth > visuals[i].visual.depth) ||
- ((visuals[j].visual.depth == visuals[i].visual.depth) &&
- (visuals[j].visual.type > visuals[i].visual.type)))
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- }
- }
+ system_visual->visual.type = GDK_VISUAL_TRUE_COLOR;
+ system_visual->visual.red_mask = 0x00FF0000;
+ system_visual->visual.green_mask = 0x0000FF00;
+ system_visual->visual.blue_mask = 0x000000FF;
}
+ else
+ g_error ("gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
- for (i = 0; i < nvisuals; i++)
- if (default_xvisual->visualid == visuals[i].xvisual->visualid)
- {
- system_visual = &visuals[i];
- break;
- }
+ system_visual->visual.depth = bitspixel;
+ system_visual->visual.byte_order = GDK_LSB_FIRST;
+ system_visual->visual.bits_per_rgb = 42; /* Not used? */
- navailable_depths = 0;
- for (i = 0; i < npossible_depths; i++)
+ if ((system_visual->visual.type == GDK_VISUAL_TRUE_COLOR) ||
+ (system_visual->visual.type == GDK_VISUAL_DIRECT_COLOR))
{
- for (j = 0; j < nvisuals; j++)
- {
- if (visuals[j].visual.depth == possible_depths[i])
- {
- available_depths[navailable_depths++] = visuals[j].visual.depth;
- break;
- }
- }
+ gdk_visual_decompose_mask (system_visual->visual.red_mask,
+ &system_visual->visual.red_shift,
+ &system_visual->visual.red_prec);
+
+ gdk_visual_decompose_mask (system_visual->visual.green_mask,
+ &system_visual->visual.green_shift,
+ &system_visual->visual.green_prec);
+
+ gdk_visual_decompose_mask (system_visual->visual.blue_mask,
+ &system_visual->visual.blue_shift,
+ &system_visual->visual.blue_prec);
+ system_visual->xvisual->map_entries =
+ 1 << (MAX (system_visual->visual.red_prec,
+ MAX (system_visual->visual.green_prec,
+ system_visual->visual.blue_prec)));
}
+ else
+ {
+ system_visual->visual.red_mask = 0;
+ system_visual->visual.red_shift = 0;
+ system_visual->visual.red_prec = 0;
- if (navailable_depths == 0)
- g_error ("unable to find a usable depth");
+ system_visual->visual.green_mask = 0;
+ system_visual->visual.green_shift = 0;
+ system_visual->visual.green_prec = 0;
- navailable_types = 0;
- for (i = 0; i < npossible_types; i++)
- {
- for (j = 0; j < nvisuals; j++)
- {
- if (visuals[j].visual.type == possible_types[i])
- {
- available_types[navailable_types++] = visuals[j].visual.type;
- break;
- }
- }
+ system_visual->visual.blue_mask = 0;
+ system_visual->visual.blue_shift = 0;
+ system_visual->visual.blue_prec = 0;
}
+ system_visual->visual.colormap_size = system_visual->xvisual->map_entries;
- for (i = 0; i < nvisuals; i++)
- gdk_visual_add ((GdkVisual*) &visuals[i]);
-
- if (npossible_types == 0)
- g_error ("unable to find a usable visual type");
+ available_depths[0] = system_visual->visual.depth;
+ available_types[0] = system_visual->visual.type;
}
GdkVisual*
GdkVisual*
gdk_visual_get_best (void)
{
- return ((GdkVisual*) &(visuals[0]));
+ return ((GdkVisual*) system_visual);
}
GdkVisual*
gdk_visual_get_best_with_depth (gint depth)
{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if (depth == visuals[i].visual.depth)
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
+ if (depth == system_visual->visual.depth)
+ return (GdkVisual*) system_visual;
+ else
+ return NULL;
}
GdkVisual*
gdk_visual_get_best_with_type (GdkVisualType visual_type)
{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if (visual_type == visuals[i].visual.type)
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
+ if (visual_type == system_visual->visual.type)
+ return (GdkVisual*) system_visual;
+ else
+ return NULL;
}
GdkVisual*
gdk_visual_get_best_with_both (gint depth,
GdkVisualType visual_type)
{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if ((depth == visuals[i].visual.depth) &&
- (visual_type == visuals[i].visual.type))
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
+ if ((depth == system_visual->visual.depth) &&
+ (visual_type == system_visual->visual.type))
+ return (GdkVisual*) system_visual;
+ else
+ return NULL;
}
void
gdk_query_depths (gint **depths,
gint *count)
{
- *count = navailable_depths;
+ *count = 1;
*depths = available_depths;
}
gdk_query_visual_types (GdkVisualType **visual_types,
gint *count)
{
- *count = navailable_types;
+ *count = 1;
*visual_types = available_types;
}
GList*
gdk_list_visuals (void)
{
- GList *list;
- guint i;
-
- list = NULL;
- for (i = 0; i < nvisuals; ++i)
- list = g_list_append (list, (gpointer) &visuals[i]);
-
- return list;
+ return g_list_append (NULL, (gpointer) system_visual);
}
GdkVisual*
gdk_visual_lookup (Visual *xvisual)
{
- GdkVisual *visual;
-
- if (!visual_hash)
+ if (system_visual->xvisual == xvisual)
+ return (GdkVisual *) system_visual;
+ else
return NULL;
-
- visual = g_hash_table_lookup (visual_hash, xvisual);
- return visual;
}
GdkVisual*
gdkx_visual_get (VisualID xvisualid)
{
- int i;
-
- for (i = 0; i < nvisuals; i++)
- if (xvisualid == visuals[i].xvisual->visualid)
- return (GdkVisual*) &visuals[i];
-
- return NULL;
-}
-
-static void
-gdk_visual_add (GdkVisual *visual)
-{
- GdkVisualPrivate *private;
-
- if (!visual_hash)
- visual_hash = g_hash_table_new ((GHashFunc) gdk_visual_hash,
- (GCompareFunc) gdk_visual_compare);
-
- private = (GdkVisualPrivate*) visual;
-
- g_hash_table_insert (visual_hash, private->xvisual, visual);
+ if (xvisualid == system_visual->xvisual->visualid)
+ return (GdkVisual*) system_visual;
+ else
+ return NULL;
}
static void
mask >>= 1;
}
}
-
-/* This hash stuff is pretty useless on Windows, as there is only
- one visual... */
-
-static guint
-gdk_visual_hash (Visual *key)
-{
- return key->visualid;
-}
-
-static gint
-gdk_visual_compare (Visual *a,
- Visual *b)
-{
- return (a->visualid == b->visualid);
-}
projects / ~andy / gtk / blobdiff