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app/base/Makefile.am added new file that holds code to create a preview 

2007-07-17  Sven Neumann  <sven@gimp.org>

	* app/base/Makefile.am
	* app/base/tile-manager-preview.[ch]: added new file that holds 
code
	to create a preview from a tile manager.

	* app/core/gimpbuffer.c
	* app/core/gimpimage-preview.c: use the new function instead of
	duplicating this code.


svn path=/trunk/; revision=22948
This commit is contained in:
Sven Neumann 2007-07-17 19:38:10 +00:00 committed by Sven Neumann
parent cd7a6f3e6c
commit b47a3e52e5
6 changed files with 111 additions and 77 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
2007-07-17 Sven Neumann <sven@gimp.org>
* app/base/Makefile.am
* app/base/tile-manager-preview.[ch]: added new file that holds code
to create a preview from a tile manager.
* app/core/gimpbuffer.c
* app/core/gimpimage-preview.c: use the new function instead of
duplicating this code.
2007-07-17 Sven Neumann <sven@gimp.org>
* app/paint-funcs/scale-funcs.c (scale_region_no_resample): use

4
app/base/Makefile.am
View File

@ -47,9 +47,11 @@ libappbase_a_SOURCES = \
tile-cache.h \
tile-manager.c \
tile-manager.h \
tile-manager-private.h \
tile-manager-crop.c \
tile-manager-crop.h \
tile-manager-preview.c \
tile-manager-preview.h \
tile-manager-private.h \
tile-pyramid.c \
tile-pyramid.h \
tile-swap.c \

65
app/base/tile-manager-preview.c Normal file
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@ -0,0 +1,65 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <glib-object.h>
#include "base-types.h"
#include "paint-funcs/scale-funcs.h"
#include "pixel-region.h"
#include "temp-buf.h"
#include "tile-manager.h"
#include "tile-manager-preview.h"
TempBuf *
tile_manager_get_preview (TileManager *tiles,
gint width,
gint height)
{
TempBuf *preview;
PixelRegion srcPR;
PixelRegion destPR;
gint subsample;
g_return_val_if_fail (tiles != NULL, NULL);
g_return_val_if_fail (width > 0 && height > 0, NULL);
pixel_region_init (&srcPR, tiles,
0, 0,
tile_manager_width (tiles), tile_manager_height (tiles),
FALSE);
preview = temp_buf_new (width, height, tile_manager_bpp (tiles), 0, 0, NULL);
pixel_region_init_temp_buf (&destPR, preview, 0, 0, width, height);
/* calculate 'acceptable' subsample */
subsample = 1;
while ((width * (subsample + 1) * 2 < srcPR.w) &&
(height * (subsample + 1) * 2 < srcPR.h))
subsample += 1;
subsample_region (&srcPR, &destPR, subsample);
return preview;
}

28
app/base/tile-manager-preview.h Normal file
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@ -0,0 +1,28 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __TILE_MANAGER_PREVIEW_H__
#define __TILE_MANAGER_PREVIEW_H__
TempBuf * tile_manager_get_preview (TileManager *tiles,
gint width,
gint height);
#endif /* __TILE_MANAGER_PREVIEW_H__ */

47
app/core/gimpbuffer.c
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@ -26,10 +26,10 @@
#include "base/pixel-region.h"
#include "base/tile-manager.h"
#include "base/tile-manager-preview.h"
#include "base/temp-buf.h"
#include "paint-funcs/paint-funcs.h"
#include "paint-funcs/scale-funcs.h"
#include "gimpbuffer.h"
@ -201,51 +201,8 @@ gimp_buffer_get_new_preview (GimpViewable *viewable,
gint height)
{
GimpBuffer *buffer = GIMP_BUFFER (viewable);
TempBuf *temp_buf;
gint buffer_width;
gint buffer_height;
PixelRegion srcPR;
PixelRegion destPR;
gint bytes;
buffer_width = tile_manager_width (buffer->tiles);
buffer_height = tile_manager_height (buffer->tiles);
bytes = tile_manager_bpp (buffer->tiles);
pixel_region_init (&srcPR, buffer->tiles,
0, 0,
buffer_width,
buffer_height,
FALSE);
if (buffer_height > height || buffer_width > width)
temp_buf = temp_buf_new (width, height, bytes, 0, 0, NULL);
else
temp_buf = temp_buf_new (buffer_width, buffer_height, bytes, 0, 0, NULL);
pixel_region_init_temp_buf (&destPR, temp_buf,
0, 0, temp_buf->width, temp_buf->height);
if (buffer_height > height || buffer_width > width)
{
gint subsample;
/* calculate 'acceptable' subsample */
subsample = 1;
while ((width * (subsample + 1) * 2 < buffer_width) &&
(height * (subsample + 1) * 2 < buffer_height))
subsample += 1;
subsample_region (&srcPR, &destPR, subsample);
}
else
{
copy_region (&srcPR, &destPR);
}
return temp_buf;
return tile_manager_get_preview (buffer->tiles, width, height);
}
static gchar *

32
app/core/gimpimage-preview.c
View File

@ -22,11 +22,8 @@
#include "core-types.h"
#include "base/pixel-region.h"
#include "base/temp-buf.h"
#include "base/tile-manager.h"
#include "paint-funcs/scale-funcs.h"
#include "base/tile-manager-preview.h"
#include "gimpimage.h"
#include "gimpimage-preview.h"
@ -126,14 +123,9 @@ gimp_image_get_new_preview (GimpViewable *viewable,
{
GimpImage *image = GIMP_IMAGE (viewable);
TileManager *tiles;
TempBuf *preview;
PixelRegion srcPR;
PixelRegion destPR;
gdouble scale_x;
gdouble scale_y;
gint level;
gint bytes;
gint subsample;
scale_x = (gdouble) width / (gdouble) image->width;
scale_y = (gdouble) height / (gdouble) image->height;
@ -141,25 +133,5 @@ gimp_image_get_new_preview (GimpViewable *viewable,
level = gimp_projection_get_level (image->projection, scale_x, scale_y);
tiles = gimp_projection_get_tiles_at_level (image->projection, level);
pixel_region_init (&srcPR, tiles,
0, 0,
tile_manager_width (tiles), tile_manager_height (tiles),
FALSE);
bytes = gimp_projection_get_bytes (image->projection);
preview = temp_buf_new (width, height, bytes, 0, 0, NULL);
pixel_region_init_temp_buf (&destPR, preview, 0, 0, width, height);
/* calculate 'acceptable' subsample */
subsample = 1;
while ((width * (subsample + 1) * 2 < srcPR.w) &&
(height * (subsample + 1) * 2 < srcPR.h))
subsample += 1;
subsample_region (&srcPR, &destPR, subsample);
return preview;
return tile_manager_get_preview (tiles, width, height);
}