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1787ca5e2a
gtk/gdk/directfb/gdkdrawable-directfb.c
Michael David Emmel 1787ca5e2a fixed off by one error in clip patch from (#330824)
2006-04-20 02:50:21 +00:00

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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 <string.h>
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
#include "gdkregion-generic.h"
#include "gdkalias.h"
#include "cairo-directfb.h"
#define WARN_UNIMPLEMENTED(func)\
{\
static gboolean first_call = TRUE;\
if (first_call)\
{\
g_message ("unimplemented " func);\
first_call = FALSE;\
}\
}
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 void inline gdk_directfb_update_region (GdkDrawableImplDirectFB *impl,
GdkRegion *region);
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;
/**********************************************************
* DirectFB specific implementations of generic functions *
**********************************************************/
static void
gdk_directfb_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap)
{
GdkDrawableImplDirectFB *impl;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
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.
*/
static GdkRegion *
gdk_directfb_clip_region (GdkDrawable *drawable,
GdkGC *gc,
GdkRectangle *draw_rect)
{
GdkDrawableImplDirectFB *private;
GdkRegion *clip_region;
GdkRegion *tmpreg;
GdkRectangle rect;
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);
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;
}
clip_region = gdk_region_rectangle (draw_rect);
if (private->buffered && private->paint_region)
gdk_region_intersect (clip_region, private->paint_region);
if (gc)
{
GdkGCDirectFB *gc_private = GDK_GC_DIRECTFB (gc);
GdkRegion *region = gc_private->clip_region;
if (region)
{
if (gc->clip_x_origin || gc->clip_y_origin)
{
tmpreg = gdk_region_copy (region);
gdk_region_offset (tmpreg, gc->clip_x_origin, gc->clip_y_origin);
gdk_region_intersect (clip_region, tmpreg);
gdk_region_destroy (tmpreg);
}
else
{
gdk_region_intersect (clip_region, region);
}
}
if (gc_private->values_mask & GDK_GC_SUBWINDOW &&
gc_private->values.subwindow_mode == GDK_INCLUDE_INFERIORS)
return clip_region;
}
if (GDK_IS_WINDOW (private->wrapper) &&
GDK_WINDOW_IS_MAPPED (private->wrapper) &&
!GDK_WINDOW_OBJECT (private->wrapper)->input_only)
{
GList *cur;
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);
rect.x = cur_private->x;
rect.y = cur_private->y;
rect.width = cur_impl->width;
rect.height = cur_impl->height;
tmpreg = gdk_region_rectangle (&rect);
gdk_region_subtract (clip_region, tmpreg);
gdk_region_destroy (tmpreg);
}
}
return clip_region;
}
/* 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;
}
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));
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 };
clip = gdk_directfb_clip_region (drawable, gc, &rect);
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;
}
}
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 - 1, clip->rects[i].y2 - 1 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->TileBlit (impl->surface, surface, NULL, x, y);
}
impl->surface->SetBlittingFlags (impl->surface, DSBLIT_NOFX);
impl->surface->SetClip (impl->surface, NULL);
}
else /* normal rectangle filling */
{
for (i = 0; i < clip->numRects; i++)
{
DFBRegion *region = (DFBRegion *) &clip->rects[i];
impl->surface->FillRectangle (impl->surface,
region->x1,
region->y1,
region->x2 - region->x1,
region->y2 - region->y1);
}
}
gdk_directfb_update_region (impl, clip);
gdk_region_destroy (clip);
}
else
{
/* FIXME: clipping! */
DFBRegion region = { x, y, x + width, y + height };
/* 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 + 1, height + 1);
_gdk_directfb_update (impl, &region);
}
}
static void
gdk_directfb_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
WARN_UNIMPLEMENTED (G_GNUC_FUNCTION);
}
static void
gdk_directfb_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
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;
clip = gdk_directfb_clip_region (drawable, gc, NULL);
for (i = 0; i < clip->numRects; i++)
{
DFBRegion reg = { clip->rects[i].x1, clip->rects[i].y1,
clip->rects[i].x2 - 1, clip->rects[i].y2 - 1 };
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);
}
impl->surface->SetClip (impl->surface, NULL);
gdk_directfb_update_region (impl, clip);
gdk_region_destroy (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)
{
WARN_UNIMPLEMENTED (G_GNUC_FUNCTION);
}
static void
gdk_directfb_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
WARN_UNIMPLEMENTED (G_GNUC_FUNCTION);
}
static void
gdk_directfb_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkDrawable *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkDrawableImplDirectFB *impl;
GdkDrawableImplDirectFB *src_impl;
GdkRegion *clip;
GdkRectangle dest_rect = { xdest,
ydest,
xdest + width ,
ydest + height};
DFBRectangle rect = { xsrc, ysrc, width, height };
gint i;
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;
clip = gdk_directfb_clip_region (drawable, gc, &dest_rect);
for (i = 0; i < clip->numRects; i++)
{
DFBRegion reg = { clip->rects[i].x1, clip->rects[i].y1,
clip->rects[i].x2 - 1, clip->rects[i].y2 - 1 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->Blit (impl->surface, src_impl->surface, &rect,
xdest, ydest);
}
impl->surface->SetClip (impl->surface, NULL);
gdk_directfb_update_region (impl, clip);
gdk_region_destroy (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 };
if (npoints < 1)
return;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
clip = gdk_directfb_clip_region (drawable, gc, NULL);
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++;
}
gdk_region_destroy (clip);
_gdk_directfb_update (impl, &region);
}
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 };
if (nsegs < 1)
return;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (!gdk_directfb_setup_for_drawing (impl, GDK_GC_DIRECTFB (gc)))
return;
clip = gdk_directfb_clip_region (drawable, gc, NULL);
for (i = 0; i < clip->numRects; i++)
{
DFBRegion reg = { clip->rects[i].x1, clip->rects[i].y1,
clip->rects[i].x2-1, clip->rects[i].y2-1 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->DrawLines (impl->surface, (DFBRegion *)segs, nsegs);
}
impl->surface->SetClip (impl->surface, NULL);
gdk_region_destroy (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;
}
_gdk_directfb_update (impl, &region);
}
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 };
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;
clip = gdk_directfb_clip_region (drawable, gc, NULL);
for (i = 0; i < clip->numRects; i++)
{
DFBRegion reg = { clip->rects[i].x1, clip->rects[i].y1,
clip->rects[i].x2-1, clip->rects[i].y2-1 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->DrawLines (impl->surface, lines, npoints - 1);
}
impl->surface->SetClip (impl->surface, NULL);
gdk_region_destroy (clip);
_gdk_directfb_update (impl, &region);
}
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);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
image_private = image->windowing_data;
if (!impl->surface)
return;
clip = gdk_directfb_clip_region (drawable, gc, &dest_rect);
if (!gdk_region_empty (clip))
{
DFBRectangle src_rect = { xsrc, ysrc, width, height };
image_private->surface->Unlock (image_private->surface);
for (i = 0; i < clip->numRects; i++)
{
DFBRegion reg = { clip->rects[i].x1, clip->rects[i].y1,
clip->rects[i].x2 - 1, clip->rects[i].y2 - 1 };
impl->surface->SetClip (impl->surface, &reg);
impl->surface->Blit (impl->surface,
image_private->surface, &src_rect,
xdest, ydest);
}
impl->surface->SetClip (impl->surface, NULL);
image_private->surface->Lock (image_private->surface, DSLF_WRITE,
&image->mem, &pitch);
image->bpl = pitch;
gdk_directfb_update_region (impl, clip);
}
gdk_region_destroy (clip);
}
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 void
gdk_drawable_impl_directfb_finalize (GObject *object)
{
GdkDrawableImplDirectFB *impl;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (object);
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 = 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;
/* 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)
{
static 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 inline void
gdk_directfb_update_region (GdkDrawableImplDirectFB *impl,
GdkRegion *region)
{
DFBRegion reg = { region->extents.x1, region->extents.y1,
region->extents.x2 - 1, region->extents.y2 - 1 };
_gdk_directfb_update (impl, &reg);
}
void
_gdk_directfb_update (GdkDrawableImplDirectFB *impl,
DFBRegion *region)
{
g_return_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (impl));
if (impl->buffered)
return;
if (!impl->surface)
return;
impl->surface->Flip (impl->surface, region, 0);
}
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;
}
static cairo_surface_t *
gdk_directfb_ref_cairo_surface (GdkDrawable *drawable)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);
GdkDrawableImplDirectFB *impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
IDirectFB *dfb = GDK_DISPLAY_DFB(gdk_drawable_get_display(drawable))->directfb;
if (!impl->cairo_surface) {
impl->cairo_surface = cairo_directfb_surface_create(dfb ,impl->surface);
cairo_surface_set_user_data (impl->cairo_surface,
&gdk_directfb_cairo_key,drawable,
gdk_directfb_cairo_surface_destroy);
//XXX!!! MAJOR HACK so cairo coexists with direct drawing
//impl->surface->Unlock( impl->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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