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

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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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49
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"
@ -200,52 +200,9 @@ gimp_buffer_get_new_preview (GimpViewable *viewable,
gint width,
gint height)
{
GimpBuffer *buffer = GIMP_BUFFER (viewable);
TempBuf *temp_buf;
gint buffer_width;
gint buffer_height;
PixelRegion srcPR;
PixelRegion destPR;
gint bytes;
GimpBuffer *buffer = GIMP_BUFFER (viewable);
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 *