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gtk2/gdk/directfb/gdkdrawable-directfb.c
Lionel Landwerlin 30a52271e5 directfb: implement draw_drawable_with_src instead of draw_drawable in GdkDrawableImplDirectFB 
This is required by the rotated button test in gtk-demo

Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
2010-08-31 21:08:21 +02:00

1697 lines
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/* GDK - The GIMP Drawing Kit
* 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 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
* Lesser General Public License for more details.
*
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include "gdk.h"
#include <assert.h>
#include <string.h>
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "gdkinternals.h"
#include "gdkregion-generic.h"
#include "gdkalias.h"
#include "cairo-directfb.h"
#include <direct/debug.h>
#include <direct/messages.h>
/*
* There can be multiple domains in one file and one domain (same same) in multiple files.
*/
D_DEBUG_DOMAIN (GDKDFB_Drawable, "GDKDFB/Drawable", "GDK DirectFB Drawable");
D_DEBUG_DOMAIN (GDKDFB_DrawClip, "GDKDFB/DrawClip", "GDK DirectFB Drawable Clip Region");
/* From DirectFB's <gfx/generix/duffs_device.h> */
#define DUFF_1() \
case 1: \
SET_PIXEL (D[0], S[0]);
#define DUFF_2() \
case 3: \
SET_PIXEL (D[2], S[2]); \
case 2: \
SET_PIXEL (D[1], S[1]); \
DUFF_1 ()
#define DUFF_3() \
case 7: \
SET_PIXEL (D[6], S[6]); \
case 6: \
SET_PIXEL (D[5], S[5]); \
case 5: \
SET_PIXEL (D[4], S[4]); \
case 4: \
SET_PIXEL (D[3], S[3]); \
DUFF_2 ()
#define DUFF_4() \
case 15: \
SET_PIXEL (D[14], S[14]); \
case 14: \
SET_PIXEL (D[13], S[13]); \
case 13: \
SET_PIXEL (D[12], S[12]); \
case 12: \
SET_PIXEL (D[11], S[11]); \
case 11: \
SET_PIXEL (D[10], S[10]); \
case 10: \
SET_PIXEL (D[9], S[9]); \
case 9: \
SET_PIXEL (D[8], S[8]); \
case 8: \
SET_PIXEL (D[7], S[7]); \
DUFF_3 ()
#define SET_PIXEL_DUFFS_DEVICE_N(D, S, w, n) \
do { \
while (w) { \
register int l = w & ((1 << n) - 1); \
switch (l) { \
default: \
l = (1 << n); \
SET_PIXEL (D[(1 << n) - 1], S[(1 << n) - 1]); \
DUFF_##n () \
} \
D += l; \
S += l; \
w -= l; \
} \
} while(0)
static GdkScreen *gdk_directfb_get_screen (GdkDrawable *drawable);
static void gdk_drawable_impl_directfb_class_init (GdkDrawableImplDirectFBClass *klass);
static void gdk_directfb_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints);
static cairo_surface_t *gdk_directfb_ref_cairo_surface (GdkDrawable *drawable);
static gboolean accelerated_alpha_blending = FALSE;
static gpointer parent_class = NULL;
static const cairo_user_data_key_t gdk_directfb_cairo_key;
static void (*real_draw_pixbuf) (GdkDrawable *drawable,
GdkGC *gc,
GdkPixbuf *pixbuf,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height,
GdkRgbDither dither,
gint x_dither,
gint y_dither);
/**********************************************************
* DirectFB specific implementations of generic functions *
**********************************************************/
static void
gdk_directfb_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap)
{
GdkDrawableImplDirectFB *impl;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p ) <- old %p\n",
G_STRFUNC, drawable, colormap, impl->colormap);
if (impl->colormap == colormap)
return;
if (impl->colormap)
g_object_unref (impl->colormap);
impl->colormap = colormap;
if (colormap)
g_object_ref (colormap);
}
static GdkColormap*
gdk_directfb_get_colormap (GdkDrawable *drawable)
{
GdkColormap *retval;
retval = GDK_DRAWABLE_IMPL_DIRECTFB (drawable)->colormap;
if (!retval) {
retval = gdk_colormap_get_system ();
gdk_directfb_set_colormap (drawable, retval);
}
return retval;
}
static gint
gdk_directfb_get_depth (GdkDrawable *drawable)
{
GdkDrawableImplDirectFB *impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
return DFB_BITS_PER_PIXEL (impl->format);
}
static void
gdk_directfb_get_size (GdkDrawable *drawable,
gint *width,
gint *height)
{
GdkDrawableImplDirectFB *impl;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (width)
*width = impl->width;
if (height)
*height = impl->height;
}
static GdkVisual*
gdk_directfb_get_visual (GdkDrawable *drawable)
{
return gdk_visual_get_system ();
}
/* Calculates the real clipping region for a drawable, taking into account
* other windows and the gc clip region.
*/
void
gdk_directfb_clip_region (GdkDrawable *drawable,
GdkGC *gc,
GdkRectangle *draw_rect,
GdkRegion *ret_clip)
{
GdkDrawableImplDirectFB *private;
GdkRectangle rect;
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable));
g_return_if_fail (ret_clip != NULL);
D_DEBUG_AT (GDKDFB_DrawClip, "%s( %p, %p, %p )\n",
G_STRFUNC, drawable, gc, draw_rect);
private = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!draw_rect)
{
rect.x = 0;
rect.y = 0;
rect.width = private->width;
rect.height = private->height;
draw_rect = &rect;
}
D_DEBUG_AT (GDKDFB_DrawClip, " -> draw rectangle == %4d,%4d - %4dx%4d =\n",
draw_rect->x, draw_rect->y, draw_rect->width, draw_rect->height);
temp_region_init_rectangle (ret_clip, draw_rect);
if (private->buffered) {
D_DEBUG_AT (GDKDFB_DrawClip, " -> buffered region > %4d,%4d - %4dx%4d < (%ld boxes)\n",
GDKDFB_RECTANGLE_VALS_FROM_BOX (&private->paint_region.extents),
private->paint_region.numRects);
gdk_region_intersect (ret_clip, &private->paint_region);
}
if (gc)
{
GdkGCDirectFB *gc_private = GDK_GC_DIRECTFB (gc);
GdkRegion *region = &gc_private->clip_region;
if (region->numRects)
{
D_DEBUG_AT (GDKDFB_DrawClip, " -> clipping region > %4d,%4d - %4dx%4d < (%ld boxes)\n",
GDKDFB_RECTANGLE_VALS_FROM_BOX (&region->extents), region->numRects);
if (gc->clip_x_origin || gc->clip_y_origin)
{
gdk_region_offset (ret_clip, -gc->clip_x_origin, -gc->clip_y_origin);
gdk_region_intersect (ret_clip, region);
gdk_region_offset (ret_clip, gc->clip_x_origin, gc->clip_y_origin);
}
else
{
gdk_region_intersect (ret_clip, region);
}
}
if (gc_private->values_mask & GDK_GC_SUBWINDOW &&
gc_private->values.subwindow_mode == GDK_INCLUDE_INFERIORS)
return;
}
if (private->buffered) {
D_DEBUG_AT (GDKDFB_DrawClip, " => returning clip >> %4d,%4d - %4dx%4d << (%ld boxes)\n",
GDKDFB_RECTANGLE_VALS_FROM_BOX (&ret_clip->extents), ret_clip->numRects);
return;
}
if (GDK_IS_WINDOW (private->wrapper) &&
GDK_WINDOW_IS_MAPPED (private->wrapper) &&
!GDK_WINDOW_OBJECT (private->wrapper)->input_only)
{
GList *cur;
GdkRegion temp;
temp.numRects = 1;
temp.rects = &temp.extents;
temp.size = 1;
for (cur = GDK_WINDOW_OBJECT (private->wrapper)->children;
cur;
cur = cur->next)
{
GdkWindowObject *cur_private;
GdkDrawableImplDirectFB *cur_impl;
cur_private = GDK_WINDOW_OBJECT (cur->data);
if (!GDK_WINDOW_IS_MAPPED (cur_private) || cur_private->input_only)
continue;
cur_impl = GDK_DRAWABLE_IMPL_DIRECTFB (cur_private->impl);
temp.extents.x1 = cur_private->x;
temp.extents.y1 = cur_private->y;
temp.extents.x2 = cur_private->x + cur_impl->width;
temp.extents.y2 = cur_private->y + cur_impl->height;
D_DEBUG_AT (GDKDFB_DrawClip, " -> clipping child [ %4d,%4d - %4dx%4d ] (%ld boxes)\n",
GDKDFB_RECTANGLE_VALS_FROM_BOX (&temp.extents), temp.numRects);
gdk_region_subtract (ret_clip, &temp);
}
}
D_DEBUG_AT (GDKDFB_DrawClip, " => returning clip >> %4d,%4d - %4dx%4d << (%ld boxes)\n",
GDKDFB_RECTANGLE_VALS_FROM_BOX (&ret_clip->extents), ret_clip->numRects);
}
/* Drawing
*/
static inline void
gdk_directfb_set_color (GdkDrawableImplDirectFB *impl,
GdkColor *color,
guchar alpha)
{
if (DFB_PIXELFORMAT_IS_INDEXED (impl->format))
{
impl->surface->SetColorIndex (impl->surface, color->pixel);
}
else
{
impl->surface->SetColor (impl->surface,
color->red >> 8,
color->green >> 8,
color->blue >> 8,
alpha);
}
}
static gboolean
gdk_directfb_setup_for_drawing (GdkDrawableImplDirectFB *impl,
GdkGCDirectFB *gc_private)
{
DFBSurfaceDrawingFlags flags = DSDRAW_NOFX;
GdkColor color = { 0, 0, 0, 0 };
guchar alpha = 0xFF;
if (!impl->surface)
return FALSE;
if (gc_private && gc_private->values_mask & GDK_GC_FOREGROUND)
color = gc_private->values.foreground;
if (gc_private && gc_private->values_mask & GDK_GC_FUNCTION)
{
switch (gc_private->values.function)
{
case GDK_COPY:
flags = DSDRAW_NOFX;
break;
case GDK_INVERT:
color.red = color.green = color.blue = 0xFFFF;
alpha = 0x0;
flags = DSDRAW_XOR;
break;
case GDK_XOR:
alpha = 0x0;
flags = DSDRAW_XOR;
break;
case GDK_CLEAR:
color.red = color.green = color.blue = 0x0;
flags = DSDRAW_NOFX;
break;
case GDK_NOOP:
return FALSE;
case GDK_SET:
color.red = color.green = color.blue = 0xFFFF;
flags = DSDRAW_NOFX;
break;
default:
g_message ("unsupported GC function %d",
gc_private->values.function);
flags = DSDRAW_NOFX;
break;
}
}
gdk_directfb_set_color (impl, &color, alpha);
impl->surface->SetDrawingFlags (impl->surface, flags);
return TRUE;
}
static void
gdk_directfb_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkDrawableImplDirectFB *impl;
GdkRegion clip;
GdkGCDirectFB *gc_private = NULL;
IDirectFBSurface *surface = NULL;
gint i;
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %s, %4d,%4d - %4dx%4d )\n", G_STRFUNC,
drawable, gc, filled ? " filled" : "outline", x, y, width, height);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!impl->surface)
return;
if (gc)
gc_private = GDK_GC_DIRECTFB (gc);
if (gc_private)
{
if (gdk_directfb_enable_color_keying &&
(gc_private->values.foreground.red >> 8) == gdk_directfb_bg_color_key.r &&
(gc_private->values.foreground.green >> 8) == gdk_directfb_bg_color_key.g &&
(gc_private->values.foreground.blue >> 8) == gdk_directfb_bg_color_key.b)
{
if (DFB_PIXELFORMAT_IS_INDEXED (impl->format))
impl->surface->SetColorIndex (impl->surface, 255);
else
impl->surface->SetColor (impl->surface,
gdk_directfb_bg_color.r,
gdk_directfb_bg_color.g,
gdk_directfb_bg_color.b,
gdk_directfb_bg_color.a);
}
else
{
if (!gdk_directfb_setup_for_drawing (impl, gc_private)) {
return;
}
}
}
else
{
GdkWindowObject *win = GDK_WINDOW_OBJECT (impl->wrapper);
if (gdk_directfb_enable_color_keying)
{
if (DFB_PIXELFORMAT_IS_INDEXED (impl->format))
impl->surface->SetColorIndex (impl->surface, 255);
else
impl->surface->SetColor (impl->surface,
gdk_directfb_bg_color.r,
gdk_directfb_bg_color.b,
gdk_directfb_bg_color.g,
gdk_directfb_bg_color.a);
}
else
{
gdk_directfb_set_color (impl, &win->bg_color, 0xFF);
}
}
if (filled)
{
GdkRectangle rect = { x, y, width, height };
gdk_directfb_clip_region (drawable, gc, &rect, &clip);
if (gc_private && gc_private->values_mask & GDK_GC_FILL)
{
if (gc_private->values.fill == GDK_STIPPLED &&
gc_private->values_mask & GDK_GC_STIPPLE &&
gc_private->values.stipple)
{
surface =
GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (gc_private->values.stipple)->impl)->surface;
if (surface)
impl->surface->SetBlittingFlags (impl->surface,
(DSBLIT_BLEND_ALPHACHANNEL |
DSBLIT_COLORIZE));
}
else if (gc_private->values.fill == GDK_TILED &&
gc_private->values_mask & GDK_GC_TILE &&
gc_private->values.tile)
{
surface = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (gc_private->values.tile)->impl)->surface;
impl->surface->SetBlittingFlags (impl->surface, DSBLIT_NOFX);
}
}
if (surface)
{
if (gc_private->values_mask & GDK_GC_TS_X_ORIGIN)
x = gc_private->values.ts_x_origin;
if (gc_private->values_mask & GDK_GC_TS_Y_ORIGIN)
y = gc_private->values.ts_y_origin;
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->TileBlit (impl->surface, surface, NULL, x, y);
}
}
else /* normal rectangle filling */
{
DFBRectangle rects[clip.numRects];
impl->surface->SetClip (impl->surface, NULL);
for (i = 0; i < clip.numRects; i++)
{
GdkRegionBox *box = &clip.rects[i];
rects[i].x = box->x1;
rects[i].y = box->y1;
rects[i].w = box->x2 - box->x1;
rects[i].h = box->y2 - box->y1;
}
impl->surface->FillRectangles (impl->surface, rects, clip.numRects);
}
temp_region_deinit (&clip);
}
else
{
DFBRegion region = { x, y, x + width, y + height };
impl->surface->SetClip (impl->surface, &region);
/* DirectFB does not draw rectangles the X way. Using DirectFB,
a filled Rectangle has the same size as a drawn one, while
X draws the rectangle one pixel taller and wider. */
impl->surface->DrawRectangle (impl->surface,
x, y, width, height);
}
}
static void
gdk_directfb_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
D_UNIMPLEMENTED ();
}
static void
gdk_directfb_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %s, %p, %d )\n", G_STRFUNC,
drawable, gc, filled ? " filled" : "outline", points, npoints);
if (npoints < 3)
return;
if (filled)
{
if (npoints == 3 || (npoints == 4 &&
points[0].x == points[npoints - 1].x &&
points[0].y == points[npoints - 1].y))
{
GdkDrawableImplDirectFB *impl;
GdkRegion clip;
gint i;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
gdk_directfb_clip_region (drawable, gc, NULL, &clip);
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->FillTriangle (impl->surface,
points[0].x, points[0].y,
points[1].x, points[1].y,
points[2].x, points[2].y);
}
temp_region_deinit (&clip);
return;
}
else
g_message ("filled polygons with n > 3 are not yet supported, "
"drawing outlines");
}
if (points[0].x != points[npoints - 1].x ||
points[0].y != points[npoints - 1].y)
{
GdkPoint *tmp_points;
tmp_points = g_new (GdkPoint, npoints + 1);
memcpy (tmp_points, points, npoints * sizeof (GdkPoint));
tmp_points[npoints].x = points[0].x;
tmp_points[npoints].y = points[0].y;
gdk_directfb_draw_lines (drawable, gc, tmp_points, npoints + 1);
g_free (tmp_points);
}
else
{
gdk_directfb_draw_lines (drawable, gc, points, npoints);
}
}
static void
gdk_directfb_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
D_UNIMPLEMENTED ();
}
static void
gdk_directfb_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
D_UNIMPLEMENTED ();
}
static void
gdk_directfb_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkDrawable *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height,
GdkDrawable *original_src)
{
GdkDrawableImplDirectFB *impl;
GdkDrawableImplDirectFB *src_impl;
GdkRegion clip;
GdkRectangle dest_rect = { xdest,
ydest,
xdest + width ,
ydest + height};
DFBRectangle rect = { xsrc, ysrc, width, height };
gint i;
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %4d,%4d -> %4d,%4d - %dx%d )\n", G_STRFUNC,
drawable, gc, src, xsrc, ysrc, xdest, ydest, width, height);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!impl->surface)
return;
if (GDK_IS_PIXMAP (src))
src_impl = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (src)->impl);
else if (GDK_IS_WINDOW (src))
src_impl = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (src)->impl);
else if (GDK_IS_DRAWABLE_IMPL_DIRECTFB (src))
src_impl = GDK_DRAWABLE_IMPL_DIRECTFB (src);
else
return;
gdk_directfb_clip_region (drawable, gc, &dest_rect, &clip);
impl->surface->SetBlittingFlags (impl->surface, DSBLIT_NOFX);
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->Blit (impl->surface,
src_impl->surface,
&rect,
xdest, ydest);
}
temp_region_deinit (&clip);
}
static void
gdk_directfb_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkDrawableImplDirectFB *impl;
GdkRegion clip;
DFBRegion region = { points->x, points->y, points->x, points->y };
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %d )\n",
G_STRFUNC, drawable, gc, points, npoints);
if (npoints < 1)
return;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
gdk_directfb_clip_region (drawable, gc, NULL, &clip);
while (npoints > 0)
{
if (gdk_region_point_in (&clip, points->x, points->y))
{
impl->surface->FillRectangle (impl->surface,
points->x, points->y, 1, 1);
if (points->x < region.x1)
region.x1 = points->x;
if (points->x > region.x2)
region.x2 = points->x;
if (points->y < region.y1)
region.y1 = points->y;
if (points->y > region.y2)
region.y2 = points->y;
}
npoints--;
points++;
}
temp_region_deinit (&clip);
}
static void
gdk_directfb_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkDrawableImplDirectFB *impl;
GdkRegion clip;
gint i;
// DFBRegion region = { segs->x1, segs->y1, segs->x2, segs->y2 };
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %d )\n",
G_STRFUNC, drawable, gc, segs, nsegs);
if (nsegs < 1)
return;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
gdk_directfb_clip_region (drawable, gc, NULL, &clip);
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->DrawLines (impl->surface, (DFBRegion *)segs, nsegs);
}
temp_region_deinit (&clip);
/* everything below can be omitted if the drawing is buffered */
/* if (impl->buffered)
return;
if (region.x1 > region.x2)
{
region.x1 = segs->x2;
region.x2 = segs->x1;
}
if (region.y1 > region.y2)
{
region.y1 = segs->y2;
region.y2 = segs->y1;
}
while (nsegs > 1)
{
nsegs--;
segs++;
if (segs->x1 < region.x1)
region.x1 = segs->x1;
if (segs->x2 < region.x1)
region.x1 = segs->x2;
if (segs->y1 < region.y1)
region.y1 = segs->y1;
if (segs->y2 < region.y1)
region.y1 = segs->y2;
if (segs->x1 > region.x2)
region.x2 = segs->x1;
if (segs->x2 > region.x2)
region.x2 = segs->x2;
if (segs->y1 > region.y2)
region.y2 = segs->y1;
if (segs->y2 > region.y2)
region.y2 = segs->y2;
}*/
}
static void
gdk_directfb_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkDrawableImplDirectFB *impl;
GdkRegion clip;
gint i;
DFBRegion lines[npoints > 1 ? npoints - 1 : 1];
DFBRegion region = { points->x, points->y, points->x, points->y };
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %d )\n", G_STRFUNC,
drawable, gc, points, npoints);
if (npoints < 2)
return;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
/* create an array of DFBRegions so we can use DrawLines */
lines[0].x1 = points->x;
lines[0].y1 = points->y;
for (i = 0; i < npoints - 2; i++)
{
points++;
lines[i].x2 = lines[i+1].x1 = points->x;
lines[i].y2 = lines[i+1].y1 = points->y;
if (points->x < region.x1)
region.x1 = points->x;
if (points->y < region.y1)
region.y1 = points->y;
if (points->x > region.x2)
region.x2 = points->x;
if (points->y > region.y2)
region.y2 = points->y;
}
points++;
lines[i].x2 = points->x;
lines[i].y2 = points->y;
gdk_directfb_clip_region (drawable, gc, NULL, &clip);
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->DrawLines (impl->surface, lines, npoints - 1);
}
temp_region_deinit (&clip);
}
static void
gdk_directfb_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkDrawableImplDirectFB *impl;
GdkImageDirectFB *image_private;
GdkRegion clip;
GdkRectangle dest_rect = { xdest, ydest, width, height };
gint pitch = 0;
gint i;
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (image != NULL);
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %4d,%4d -> %4d,%4d - %dx%d )\n",
G_STRFUNC,
drawable, gc, image, xsrc, ysrc, xdest, ydest, width, height);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
image_private = image->windowing_data;
if (!impl->surface)
return;
gdk_directfb_clip_region (drawable, gc, &dest_rect, &clip);
if (!gdk_region_empty (&clip))
{
DFBRectangle src_rect = { xsrc, ysrc, width, height };
image_private->surface->Unlock (image_private->surface);
impl->surface->SetBlittingFlags (impl->surface, DSBLIT_NOFX);
for (i = 0; i < clip.numRects; i++)
{
DFBRegion reg = { clip.rects[i].x1, clip.rects[i].y1,
clip.rects[i].x2, clip.rects[i].y2 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->Blit (impl->surface,
image_private->surface, &src_rect,
xdest, ydest);
}
image_private->surface->Lock (image_private->surface, DSLF_WRITE,
&image->mem, &pitch);
image->bpl = pitch;
}
temp_region_deinit (&clip);
}
static void
composite (guchar *src_buf,
gint src_rowstride,
guchar *dest_buf,
gint dest_rowstride,
gint width,
gint height)
{
guchar *src = src_buf;
guchar *dest = dest_buf;
while (height--)
{
gint twidth = width;
guchar *p = src;
guchar *q = dest;
while (twidth--)
{
guchar a = p[3];
guint t;
t = a * p[0] + (255 - a) * q[0] + 0x80;
q[0] = (t + (t >> 8)) >> 8;
t = a * p[1] + (255 - a) * q[1] + 0x80;
q[1] = (t + (t >> 8)) >> 8;
t = a * p[2] + (255 - a) * q[2] + 0x80;
q[2] = (t + (t >> 8)) >> 8;
p += 4;
q += 3;
}
src += src_rowstride;
dest += dest_rowstride;
}
}
static void
composite_0888 (guchar *src_buf,
gint src_rowstride,
guchar *dest_buf,
gint dest_rowstride,
GdkByteOrder dest_byte_order,
gint width,
gint height)
{
guchar *src = src_buf;
guchar *dest = dest_buf;
while (height--)
{
gint twidth = width;
guchar *p = src;
guchar *q = dest;
if (dest_byte_order == GDK_LSB_FIRST)
{
while (twidth--)
{
guint t;
t = p[3] * p[2] + (255 - p[3]) * q[0] + 0x80;
q[0] = (t + (t >> 8)) >> 8;
t = p[3] * p[1] + (255 - p[3]) * q[1] + 0x80;
q[1] = (t + (t >> 8)) >> 8;
t = p[3] * p[0] + (255 - p[3]) * q[2] + 0x80;
q[2] = (t + (t >> 8)) >> 8;
p += 4;
q += 4;
}
}
else
{
while (twidth--)
{
guint t;
t = p[3] * p[0] + (255 - p[3]) * q[1] + 0x80;
q[1] = (t + (t >> 8)) >> 8;
t = p[3] * p[1] + (255 - p[3]) * q[2] + 0x80;
q[2] = (t + (t >> 8)) >> 8;
t = p[3] * p[2] + (255 - p[3]) * q[3] + 0x80;
q[3] = (t + (t >> 8)) >> 8;
p += 4;
q += 4;
}
}
src += src_rowstride;
dest += dest_rowstride;
}
}
/* change the last value to adjust the size of the device (1-4) */
#define SET_PIXEL_DUFFS_DEVICE(D, S, w) \
SET_PIXEL_DUFFS_DEVICE_N (D, S, w, 2)
/* From DirectFB's gfx/generic/generic.c" */
#define SET_PIXEL(D, S) \
switch (S >> 26) { \
case 0: \
break; \
case 0x3f: \
D = ((S << 8) & 0xF800) | \
((S >> 5) & 0x07E0) | \
((S >> 19) & 0x001F); \
break; \
default: \
D = (((( (((S<<8) & 0xf800) | ((S>>19) & 0x001f)) \
- (D & 0xf81f)) * ((S>>26)+1) + ((D & 0xf81f)<<6)) & 0x003e07c0) \
+ \
((( ((S>>5) & 0x07e0) \
- (D & 0x07e0)) * ((S>>26)+1) + ((D & 0x07e0)<<6)) & 0x0001f800)) >> 6; \
}
static void
composite_565 (guchar *src_buf,
gint src_rowstride,
guchar *dest_buf,
gint dest_rowstride,
GdkByteOrder dest_byte_order,
gint width,
gint height)
{
while (height--) {
int w = width;
u16 *D = (u16*) dest_buf;
u32 *S = (u32*) src_buf;
#if 1
if ((unsigned long)D & 2) {
SET_PIXEL (D[0], S[0]);
w--;
D++;
S++;
}
int i;
int w2 = w / 2;
u32 *D32 = (u32*) D;
for (i=0; i<w2; i++) {
register u32 S0 = S[(i << 1) + 0];
register u32 S1 = S[(i << 1) + 1];
if ((S0 >> 26) == 0x3f && (S1 >> 26) == 0x3f) {
D32[i] = ((S0 << 8) & 0x0000F800) |
((S0 >> 5) & 0x000007E0) |
((S0 >> 19) & 0x0000001F) |
((S1 << 24) & 0xF8000000) |
((S1 << 11) & 0x07E00000) |
((S1 >> 3) & 0x001F0000);
}
else {
SET_PIXEL (D[(i << 1) + 0], S0);
SET_PIXEL (D[(i << 1) + 1], S1);
}
}
if (w & 1)
SET_PIXEL (D[w - 1], S[w - 1]);
#else
SET_PIXEL_DUFFS_DEVICE (D, S, w);
#endif
dest_buf += dest_rowstride;
src_buf += src_rowstride;
}
}
#undef SET_PIXEL
#undef SET_PIXEL_DUFFS_DEVICE
static void
gdk_directfb_draw_pixbuf (GdkDrawable *drawable,
GdkGC *gc,
GdkPixbuf *pixbuf,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height,
GdkRgbDither dither,
gint x_dither,
gint y_dither)
{
GdkPixbuf *composited = NULL;
guchar *pb_pixels = NULL;
gint pb_n_channels, pb_bits_per_sample, pb_rowstride;
gint pb_width, pb_height;
#if 0
GdkRegion *clip;
GdkRegion *drect;
GdkRectangle tmp_rect;
#endif
GdkDrawableImplDirectFB *impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
pb_n_channels = gdk_pixbuf_get_n_channels (pixbuf);
pb_bits_per_sample = gdk_pixbuf_get_bits_per_sample (pixbuf);
g_return_if_fail (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB);
g_return_if_fail (pb_n_channels == 3 || pb_n_channels == 4);
g_return_if_fail (pb_bits_per_sample == 8);
g_return_if_fail (drawable != NULL);
pb_width = gdk_pixbuf_get_width (pixbuf);
pb_height = gdk_pixbuf_get_height (pixbuf);
pb_pixels = gdk_pixbuf_get_pixels (pixbuf);
pb_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
if (width == -1)
width = pb_width;
if (height == -1)
height = pb_height;
g_return_if_fail (width >= 0 && height >= 0);
g_return_if_fail (src_x >= 0 && src_x + width <= pb_width);
g_return_if_fail (src_y >= 0 && src_y + height <= pb_height);
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p, %p, %p, %4d,%4d -> %4d,%4d - %dx%d )\n",
G_STRFUNC,
drawable, gc, pixbuf, src_x, src_y, dest_x, dest_y, width, height);
/* Clip to the drawable; this is required for get_from_drawable() so
* can't be done implicitly
*/
if (dest_x < 0)
{
src_x -= dest_x;
width += dest_x;
dest_x = 0;
}
if (dest_y < 0)
{
src_y -= dest_y;
height += dest_y;
dest_y = 0;
}
if ((dest_x + width) > impl->width)
width = impl->width - dest_x;
if ((dest_y + height) > impl->height)
height = impl->height - dest_y;
if (width <= 0 || height <= 0)
return;
#if 0
/* Clip to the clip region; this avoids getting more
* image data from the server than we need to.
*/
tmp_rect.x = dest_x;
tmp_rect.y = dest_y;
tmp_rect.width = width;
tmp_rect.height = height;
drect = gdk_region_rectangle (&tmp_rect);
clip = gdk_drawable_get_clip_region (drawable);
gdk_region_intersect (drect, clip);
gdk_region_get_clipbox (drect, &tmp_rect);
gdk_region_destroy (drect);
gdk_region_destroy (clip);
if (tmp_rect.width == 0 ||
tmp_rect.height == 0)
return;
#endif
if (gdk_pixbuf_get_has_alpha (pixbuf) && impl->format == DSPF_RGB16) {
void *data;
int pitch;
if (impl->surface->Lock (impl->surface, DSLF_READ | DSLF_WRITE, &data, &pitch) == DFB_OK) {
composite_565 (pb_pixels + src_y * pb_rowstride + src_x * 4,
pb_rowstride,
data + dest_y * pitch + dest_x * 2,
pitch,
#if G_BYTE_ORDER == G_BIG_ENDIAN
GDK_MSB_FIRST,
#else
GDK_LSB_FIRST,
#endif
width, height);
impl->surface->Unlock (impl->surface);
return;
}
}
/* Actually draw */
if (!gc)
gc = _gdk_drawable_get_scratch_gc (drawable, FALSE);
if (gdk_pixbuf_get_has_alpha (pixbuf))
{
GdkVisual *visual = gdk_drawable_get_visual (drawable);
void (*composite_func) (guchar *src_buf,
gint src_rowstride,
guchar *dest_buf,
gint dest_rowstride,
GdkByteOrder dest_byte_order,
gint width,
gint height) = NULL;
/* First we see if we have a visual-specific composition function that can composite
* the pixbuf data directly onto the image
*/
if (visual)
{
gint bits_per_pixel = _gdk_windowing_get_bits_for_depth (gdk_drawable_get_display (drawable),
visual->depth);
if (visual->byte_order == (G_BYTE_ORDER == G_BIG_ENDIAN ? GDK_MSB_FIRST : GDK_LSB_FIRST) &&
visual->depth == 16 &&
visual->red_mask == 0xf800 &&
visual->green_mask == 0x07e0 &&
visual->blue_mask == 0x001f)
composite_func = composite_565;
else if (visual->depth == 24 && bits_per_pixel == 32 &&
visual->red_mask == 0xff0000 &&
visual->green_mask == 0x00ff00 &&
visual->blue_mask == 0x0000ff)
composite_func = composite_0888;
}
/* We can't use our composite func if we are required to dither
*/
if (composite_func && !(dither == GDK_RGB_DITHER_MAX && visual->depth != 24))
{
#if 0
gint x0, y0;
for (y0 = 0; y0 < height; y0 += GDK_SCRATCH_IMAGE_HEIGHT)
{
gint height1 = MIN (height - y0, GDK_SCRATCH_IMAGE_HEIGHT);
for (x0 = 0; x0 < width; x0 += GDK_SCRATCH_IMAGE_WIDTH)
{
gint xs0, ys0;
gint width1 = MIN (width - x0, GDK_SCRATCH_IMAGE_WIDTH);
GdkImage *image = _gdk_image_get_scratch (gdk_drawable_get_screen (drawable),
width1, height1,
gdk_drawable_get_depth (drawable), &xs0, &ys0);
gdk_drawable_copy_to_image (drawable, image,
dest_x + x0, dest_y + y0,
xs0, ys0,
width1, height1);
(*composite_func) (pb_pixels + (src_y + y0) * pb_rowstride + (src_x + x0) * 4,
pb_rowstride,
(guchar*)image->mem + ys0 * image->bpl + xs0 * image->bpp,
image->bpl,
visual->byte_order,
width1, height1);
gdk_draw_image (drawable, gc, image,
xs0, ys0,
dest_x + x0, dest_y + y0,
width1, height1);
}
}
#else
void *data;
int pitch;
if (impl->surface->Lock (impl->surface,
DSLF_READ | DSLF_WRITE,
&data, &pitch) == DFB_OK) {
(*composite_func) (pb_pixels + src_y * pb_rowstride + src_x * 4,
pb_rowstride,
data + dest_y * pitch + DFB_BYTES_PER_LINE (impl->format, dest_x),
pitch,
visual->byte_order,
width, height);
impl->surface->Unlock (impl->surface);
}
#endif
goto out;
}
else
{
/* No special composition func, convert dest to 24 bit RGB data, composite against
* that, and convert back.
*/
composited = gdk_pixbuf_get_from_drawable (NULL,
drawable,
NULL,
dest_x, dest_y,
0, 0,
width, height);
if (composited)
composite (pb_pixels + src_y * pb_rowstride + src_x * 4,
pb_rowstride,
gdk_pixbuf_get_pixels (composited),
gdk_pixbuf_get_rowstride (composited),
width, height);
}
}
if (composited)
{
src_x = 0;
src_y = 0;
pixbuf = composited;
pb_pixels = gdk_pixbuf_get_pixels (pixbuf);
pb_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
}
if (pb_n_channels == 4)
{
guchar *buf = pb_pixels + src_y * pb_rowstride + src_x * 4;
gdk_draw_rgb_32_image_dithalign (drawable, gc,
dest_x, dest_y,
width, height,
dither,
buf, pb_rowstride,
x_dither, y_dither);
}
else /* n_channels == 3 */
{
guchar *buf = pb_pixels + src_y * pb_rowstride + src_x * 3;
gdk_draw_rgb_image_dithalign (drawable, gc,
dest_x, dest_y,
width, height,
dither,
buf, pb_rowstride,
x_dither, y_dither);
}
out:
if (composited)
g_object_unref (composited);
}
static inline void
convert_rgba_pixbuf_to_image (guint32 *src,
guint src_pitch,
guint32 *dest,
guint dest_pitch,
guint width,
guint height)
{
guint i;
while (height--)
{
for (i = 0; i < width; i++)
{
guint32 pixel = GUINT32_FROM_BE (src[i]);
dest[i] = (pixel >> 8) | (pixel << 24);
}
src += src_pitch;
dest += dest_pitch;
}
}
static inline void
convert_rgb_pixbuf_to_image (guchar *src,
guint src_pitch,
guint32 *dest,
guint dest_pitch,
guint width,
guint height)
{
guint i;
guchar *s;
while (height--)
{
s = src;
for (i = 0; i < width; i++, s += 3)
dest[i] = 0xFF000000 | (s[0] << 16) | (s[1] << 8) | s[2];
src += src_pitch;
dest += dest_pitch;
}
}
/*
* Object stuff
*/
static inline const char *
drawable_impl_type_name (GObject *object)
{
if (GDK_IS_PIXMAP (object))
return "PIXMAP";
if (GDK_IS_WINDOW (object))
return "WINDOW";
if (GDK_IS_DRAWABLE_IMPL_DIRECTFB (object))
return "DRAWABLE";
return "unknown";
}
static void
gdk_drawable_impl_directfb_finalize (GObject *object)
{
GdkDrawableImplDirectFB *impl;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (object);
D_DEBUG_AT (GDKDFB_Drawable, "%s( %p ) <- %dx%d (%s at %4d,%4d)\n",
G_STRFUNC,
object, impl->width, impl->height,
drawable_impl_type_name (object),
impl->abs_x, impl->abs_y);
gdk_directfb_set_colormap (GDK_DRAWABLE (object), NULL);
if (impl->cairo_surface) {
cairo_surface_finish (impl->cairo_surface);
}
if (impl->surface)
impl->surface->Release (impl->surface);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gdk_drawable_impl_directfb_class_init (GdkDrawableImplDirectFBClass *klass)
{
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_drawable_impl_directfb_finalize;
drawable_class->create_gc = _gdk_directfb_gc_new;
drawable_class->draw_rectangle = gdk_directfb_draw_rectangle;
drawable_class->draw_arc = gdk_directfb_draw_arc;
drawable_class->draw_polygon = gdk_directfb_draw_polygon;
drawable_class->draw_text = gdk_directfb_draw_text;
drawable_class->draw_text_wc = gdk_directfb_draw_text_wc;
drawable_class->draw_drawable_with_src = gdk_directfb_draw_drawable;
drawable_class->draw_points = gdk_directfb_draw_points;
drawable_class->draw_segments = gdk_directfb_draw_segments;
drawable_class->draw_lines = gdk_directfb_draw_lines;
#if 0
drawable_class->draw_glyphs = NULL;
drawable_class->draw_glyphs_transformed = NULL;
#endif
drawable_class->draw_image = gdk_directfb_draw_image;
drawable_class->ref_cairo_surface = gdk_directfb_ref_cairo_surface;
drawable_class->set_colormap = gdk_directfb_set_colormap;
drawable_class->get_colormap = gdk_directfb_get_colormap;
drawable_class->get_depth = gdk_directfb_get_depth;
drawable_class->get_visual = gdk_directfb_get_visual;
drawable_class->get_size = gdk_directfb_get_size;
drawable_class->_copy_to_image = _gdk_directfb_copy_to_image;
drawable_class->get_screen = gdk_directfb_get_screen;
real_draw_pixbuf = drawable_class->draw_pixbuf;
drawable_class->draw_pixbuf = gdk_directfb_draw_pixbuf;
/* check for hardware-accelerated alpha-blending */
{
DFBGraphicsDeviceDescription desc;
_gdk_display->directfb->GetDeviceDescription (_gdk_display->directfb, &desc);
accelerated_alpha_blending =
((desc.acceleration_mask & DFXL_BLIT) &&
(desc.blitting_flags & DSBLIT_BLEND_ALPHACHANNEL));
}
}
GType
gdk_drawable_impl_directfb_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
const GTypeInfo object_info =
{
sizeof (GdkDrawableImplDirectFBClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_drawable_impl_directfb_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkDrawableImplDirectFB),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (GDK_TYPE_DRAWABLE,
"GdkDrawableImplDirectFB",
&object_info, 0);
}
return object_type;
}
static GdkScreen *
gdk_directfb_get_screen (GdkDrawable *drawable)
{
return gdk_screen_get_default ();
}
static void
gdk_directfb_cairo_surface_destroy (void *data)
{
GdkDrawableImplDirectFB *impl = data;
impl->cairo_surface = NULL;
}
void
_gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
int width,
int height)
{
}
cairo_surface_t *
_gdk_windowing_create_cairo_surface (GdkDrawable *drawable,
int width,
int height)
{
GdkDrawableImplDirectFB *impl;
IDirectFB *dfb;
cairo_surface_t *ret;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
dfb = GDK_DISPLAY_DFB (gdk_drawable_get_display (drawable))->directfb;
ret = cairo_directfb_surface_create (dfb, impl->surface);
cairo_surface_set_user_data (ret,
&gdk_directfb_cairo_key, drawable,
gdk_directfb_cairo_surface_destroy);
return ret;
}
static cairo_surface_t *
gdk_directfb_ref_cairo_surface (GdkDrawable *drawable)
{
GdkDrawableImplDirectFB *impl;
IDirectFB *dfb;
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
dfb = GDK_DISPLAY_DFB (gdk_drawable_get_display (drawable))->directfb;
if (!impl->cairo_surface) {
IDirectFBSurface *surface;
g_assert (impl->surface != NULL);
impl->surface->GetSubSurface (impl->surface, NULL, &surface);
if (surface) {
impl->cairo_surface = cairo_directfb_surface_create (dfb, surface);
if (impl->cairo_surface) {
cairo_surface_set_user_data (impl->cairo_surface,
&gdk_directfb_cairo_key, drawable,
gdk_directfb_cairo_surface_destroy);
}
surface->Release (surface);
}
} else {
cairo_surface_reference (impl->cairo_surface);
}
g_assert (impl->cairo_surface != NULL);
return impl->cairo_surface;
}
#define __GDK_DRAWABLE_X11_C__
#include "gdkaliasdef.c"
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