mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-05 16:20:10 +00:00
269 lines
6.3 KiB
C
269 lines
6.3 KiB
C
/* 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 Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-1999. 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 <config.h>
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "gdk.h"
|
|
#include "gdkimage.h"
|
|
#include "gdkprivate.h"
|
|
#include "gdkprivate-fb.h"
|
|
|
|
struct _GdkImagePrivateFB
|
|
{
|
|
GdkImagePrivate base;
|
|
};
|
|
|
|
static void gdk_fb_image_destroy (GdkImage *image);
|
|
static void gdk_image_put_normal (GdkImage *image,
|
|
GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
gint xsrc,
|
|
gint ysrc,
|
|
gint xdest,
|
|
gint ydest,
|
|
gint width,
|
|
gint height);
|
|
|
|
static GdkImageClass image_class_normal = {
|
|
gdk_fb_image_destroy,
|
|
gdk_image_put_normal
|
|
};
|
|
|
|
GdkImage *
|
|
gdk_image_new_bitmap(GdkVisual *visual, gpointer data, gint w, gint h)
|
|
{
|
|
GdkImage *image;
|
|
GdkImagePrivateFB *private;
|
|
|
|
private = g_new(GdkImagePrivateFB, 1);
|
|
image = (GdkImage *) private;
|
|
private->base.ref_count = 1;
|
|
private->base.klass = &image_class_normal;
|
|
image->type = GDK_IMAGE_NORMAL;
|
|
image->visual = visual;
|
|
image->width = w;
|
|
image->height = h;
|
|
image->depth = 1;
|
|
|
|
image->byte_order = 1 /* MSBFirst */;
|
|
image->mem = g_malloc(w * h / 8);
|
|
image->bpp = 1;
|
|
image->bpl = (w+7)/8;
|
|
|
|
return image;
|
|
}
|
|
|
|
void
|
|
gdk_image_init (void)
|
|
{
|
|
}
|
|
|
|
GdkImage*
|
|
gdk_image_new (GdkImageType type,
|
|
GdkVisual *visual,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkImage *image;
|
|
GdkImagePrivateFB *private;
|
|
|
|
private = g_new (GdkImagePrivateFB, 1);
|
|
image = (GdkImage*) private;
|
|
|
|
private->base.ref_count = 1;
|
|
|
|
image->type = 0;
|
|
image->visual = visual;
|
|
image->width = width;
|
|
image->height = height;
|
|
image->depth = visual->depth;
|
|
|
|
private->base.klass = &image_class_normal;
|
|
|
|
if (image)
|
|
{
|
|
image->byte_order = 0;
|
|
image->mem = g_malloc(width * height * (image->depth >> 3));
|
|
image->bpp = image->depth;
|
|
image->bpl = (width * image->depth + 7)/8;
|
|
}
|
|
|
|
return image;
|
|
}
|
|
|
|
GdkImage*
|
|
gdk_image_get (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkImage *image;
|
|
GdkImagePrivateFB *private;
|
|
gint bits_per_pixel = GDK_DRAWABLE_P(gdk_parent_root)->depth;
|
|
GdkDrawableFBData fbd;
|
|
GdkDrawablePrivate tmp_foo;
|
|
|
|
g_return_val_if_fail (window != NULL, NULL);
|
|
|
|
if (GDK_DRAWABLE_DESTROYED (window))
|
|
return NULL;
|
|
|
|
private = g_new (GdkImagePrivateFB, 1);
|
|
image = (GdkImage*) private;
|
|
|
|
private->base.ref_count = 1;
|
|
private->base.klass = &image_class_normal;
|
|
|
|
image->type = GDK_IMAGE_NORMAL;
|
|
image->visual = gdk_window_get_visual (window);
|
|
image->width = width;
|
|
image->height = height;
|
|
image->depth = bits_per_pixel;
|
|
|
|
if (bits_per_pixel <= 8)
|
|
image->bpp = 1;
|
|
else if (bits_per_pixel <= 16)
|
|
image->bpp = 2;
|
|
else if (bits_per_pixel <= 24)
|
|
image->bpp = 3;
|
|
else
|
|
image->bpp = 4;
|
|
image->byte_order = 1;
|
|
image->bpl = (image->width * image->bpp + 7)/8;
|
|
image->mem = g_malloc(image->bpl * image->height);
|
|
|
|
/* Fake its existence as a pixmap */
|
|
memset(&tmp_foo, 0, sizeof(tmp_foo));
|
|
memset(&fbd, 0, sizeof(fbd));
|
|
tmp_foo.klass = &_gdk_fb_drawable_class;
|
|
tmp_foo.klass_data = &fbd;
|
|
fbd.mem = image->mem;
|
|
fbd.rowstride = image->bpl;
|
|
tmp_foo.width = fbd.lim_x = image->width;
|
|
tmp_foo.height = fbd.lim_y = image->height;
|
|
tmp_foo.depth = image->depth;
|
|
|
|
gdk_fb_draw_drawable((GdkPixmap *)&tmp_foo, NULL, window, x, y, 0, 0, width, height);
|
|
|
|
return image;
|
|
}
|
|
|
|
guint32
|
|
gdk_image_get_pixel (GdkImage *image,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkImagePrivateFB *private;
|
|
|
|
g_return_val_if_fail (image != NULL, 0);
|
|
|
|
private = (GdkImagePrivateFB *) image;
|
|
|
|
g_assert(image->depth == 8);
|
|
|
|
return ((guchar *)image->mem)[x + y * image->bpl];
|
|
}
|
|
|
|
void
|
|
gdk_image_put_pixel (GdkImage *image,
|
|
gint x,
|
|
gint y,
|
|
guint32 pixel)
|
|
{
|
|
GdkImagePrivateFB *private;
|
|
|
|
g_return_if_fail (image != NULL);
|
|
|
|
private = (GdkImagePrivateFB *) image;
|
|
g_assert(image->depth == 8);
|
|
|
|
((guchar *)image->mem)[x + y * image->bpl] = pixel;
|
|
}
|
|
|
|
static void
|
|
gdk_fb_image_destroy (GdkImage *image)
|
|
{
|
|
GdkImagePrivateFB *private;
|
|
|
|
g_return_if_fail (image != NULL);
|
|
|
|
private = (GdkImagePrivateFB*) image;
|
|
|
|
g_free(image->mem); image->mem = NULL;
|
|
|
|
g_free (image);
|
|
}
|
|
|
|
static void
|
|
gdk_image_put_normal (GdkImage *image,
|
|
GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
gint xsrc,
|
|
gint ysrc,
|
|
gint xdest,
|
|
gint ydest,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkImagePrivateFB *image_private;
|
|
GdkDrawableFBData fbd;
|
|
GdkDrawablePrivate tmp_foo;
|
|
|
|
g_return_if_fail (drawable != NULL);
|
|
g_return_if_fail (image != NULL);
|
|
g_return_if_fail (gc != NULL);
|
|
|
|
if (GDK_DRAWABLE_DESTROYED (drawable))
|
|
return;
|
|
|
|
image_private = (GdkImagePrivateFB*) image;
|
|
|
|
g_return_if_fail (image->type == GDK_IMAGE_NORMAL);
|
|
|
|
/* Fake its existence as a pixmap */
|
|
memset(&tmp_foo, 0, sizeof(tmp_foo));
|
|
memset(&fbd, 0, sizeof(fbd));
|
|
tmp_foo.klass = &_gdk_fb_drawable_class;
|
|
tmp_foo.klass_data = &fbd;
|
|
fbd.mem = image->mem;
|
|
fbd.rowstride = image->bpl;
|
|
tmp_foo.width = fbd.lim_x = image->width;
|
|
tmp_foo.height = fbd.lim_y = image->height;
|
|
tmp_foo.depth = image->depth;
|
|
|
|
gdk_fb_draw_drawable(drawable, gc, (GdkPixmap *)&tmp_foo, xsrc, ysrc, xdest, ydest, width, height);
|
|
}
|
|
|
|
void
|
|
gdk_image_exit(void)
|
|
{
|
|
}
|