[gimp/blend-tool-fun: 44/163] Bug 750867 - loading of CCiTT4 tiff images broken
- From: Michael Henning <mhenning src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/blend-tool-fun: 44/163] Bug 750867 - loading of CCiTT4 tiff images broken
- Date: Mon, 26 Oct 2015 02:21:54 +0000 (UTC)
commit c7d1b833ded00e975a5a69b2159484d8cdb3debb
Author: Michael Natterer <mitch gimp org>
Date: Sun Sep 13 00:12:42 2015 +0200
Bug 750867 - loading of CCiTT4 tiff images broken
Revive and partly reimplement the code that loads indexed and b/w
images. Seems to work on the fax attached to the bug, and on a random
indexed RGB image.
plug-ins/common/file-tiff-load.c | 104 ++++++++++++++++++++++++++++++-------
1 files changed, 84 insertions(+), 20 deletions(-)
---
diff --git a/plug-ins/common/file-tiff-load.c b/plug-ins/common/file-tiff-load.c
index 2aa1548..be0d274 100644
--- a/plug-ins/common/file-tiff-load.c
+++ b/plug-ins/common/file-tiff-load.c
@@ -109,12 +109,14 @@ static void load_contiguous (TIFF *tif,
const Babl *type,
gushort bps,
gushort spp,
+ gboolean is_bw,
gint extra);
static void load_separate (TIFF *tif,
ChannelData *channel,
const Babl *type,
gushort bps,
gushort spp,
+ gboolean is_bw,
gint extra);
static void load_paths (TIFF *tif,
gint image);
@@ -129,6 +131,12 @@ static TIFF * tiff_open (const gchar *filename,
const gchar *mode,
GError **error);
+static void fill_bit2byte (void);
+static void convert_bit2byte (const guchar *src,
+ guchar *dest,
+ gint rows,
+ gint cols);
+
const GimpPlugInInfo PLUG_IN_INFO =
{
@@ -598,6 +606,7 @@ load_image (const gchar *filename,
switch (bps)
{
+ case 1:
case 8:
image_precision = GIMP_PRECISION_U8_GAMMA;
type = babl_type ("u8");
@@ -733,7 +742,6 @@ load_image (const gchar *filename,
{
case PHOTOMETRIC_MINISBLACK:
case PHOTOMETRIC_MINISWHITE:
-#if 0
if (bps == 1 && !alpha && spp == 1)
{
image_type = GIMP_INDEXED;
@@ -743,7 +751,6 @@ load_image (const gchar *filename,
fill_bit2byte ();
}
else
-#endif
{
image_type = GIMP_GRAY;
layer_type = (alpha) ? GIMP_GRAYA_IMAGE : GIMP_GRAY_IMAGE;
@@ -815,12 +822,10 @@ load_image (const gchar *filename,
}
break;
-#if 0
case PHOTOMETRIC_PALETTE:
image_type = GIMP_INDEXED;
layer_type = (alpha) ? GIMP_INDEXEDA_IMAGE : GIMP_INDEXED_IMAGE;
break;
-#endif
default:
g_printerr ("photomet: %d (%d)\n", photomet, PHOTOMETRIC_PALETTE);
@@ -1048,7 +1053,6 @@ load_image (const gchar *filename,
layer_offset_y_pixel = ROUND (layer_offset_y * yres);
}
-#if 0
/* Install colormap for INDEXED images only */
if (image_type == GIMP_INDEXED)
{
@@ -1069,7 +1073,10 @@ load_image (const gchar *filename,
}
else
{
- gushort *redmap, *greenmap, *bluemap;
+ gushort *redmap;
+ gushort *greenmap;
+ gushort *bluemap;
+ gint i, j;
if (! TIFFGetField (tif, TIFFTAG_COLORMAP,
&redmap, &greenmap, &bluemap))
@@ -1089,7 +1096,6 @@ load_image (const gchar *filename,
gimp_image_set_colormap (image, cmap, (1 << bps));
}
-#endif
load_paths (tif, image);
@@ -1120,6 +1126,14 @@ load_image (const gchar *filename,
g_free (name);
}
+ if (! base_format && image_type == GIMP_INDEXED)
+ {
+ /* can't create the palette format here, need to get it from
+ * an existing layer
+ */
+ base_format = gimp_drawable_get_format (layer);
+ }
+
channel[0].ID = layer;
channel[0].buffer = gimp_drawable_get_buffer (layer);
channel[0].format = base_format;
@@ -1148,11 +1162,11 @@ load_image (const gchar *filename,
}
else if (planar == PLANARCONFIG_CONTIG)
{
- load_contiguous (tif, channel, type, bps, spp, extra);
+ load_contiguous (tif, channel, type, bps, spp, is_bw, extra);
}
else
{
- load_separate (tif, channel, type, bps, spp, extra);
+ load_separate (tif, channel, type, bps, spp, is_bw, extra);
}
if (TIFFGetField (tif, TIFFTAG_ORIENTATION, &orientation))
@@ -1318,7 +1332,8 @@ load_rgba (TIFF *tif,
}
static void
-load_paths (TIFF *tif, gint image)
+load_paths (TIFF *tif,
+ gint image)
{
guint16 id;
gsize len, n_bytes, pos;
@@ -1511,6 +1526,7 @@ load_contiguous (TIFF *tif,
const Babl *type,
gushort bps,
gushort spp,
+ gboolean is_bw,
gint extra)
{
uint32 imageWidth, imageLength;
@@ -1521,7 +1537,8 @@ load_contiguous (TIFF *tif,
const Babl *src_format;
GeglBufferIterator *iter;
guchar *buffer;
- gdouble progress = 0.0;
+ guchar *bw_buffer = NULL;
+ gdouble progress = 0.0;
gdouble one_row;
gint i;
@@ -1545,6 +1562,9 @@ load_contiguous (TIFF *tif,
buffer = g_malloc (TIFFScanlineSize (tif));
}
+ if (is_bw)
+ bw_buffer = g_malloc (tileWidth * tileLength);
+
one_row = (gdouble) tileLength / (gdouble) imageLength;
src_format = babl_format_n (type, spp);
@@ -1561,10 +1581,10 @@ load_contiguous (TIFF *tif,
{
for (x = 0; x < imageWidth; x += tileWidth)
{
- int offset;
+ gint offset;
gimp_progress_update (progress + one_row *
- ( (gdouble) x / (gdouble) imageWidth));
+ ((gdouble) x / (gdouble) imageWidth));
if (TIFFIsTiled (tif))
TIFFReadTile (tif, buffer, x, y, 0, 0);
@@ -1574,7 +1594,10 @@ load_contiguous (TIFF *tif,
cols = MIN (imageWidth - x, tileWidth);
rows = MIN (imageLength - y, tileLength);
- src_buf = gegl_buffer_linear_new_from_data (buffer,
+ if (is_bw)
+ convert_bit2byte (buffer, bw_buffer, rows, cols);
+
+ src_buf = gegl_buffer_linear_new_from_data (is_bw ? bw_buffer : buffer,
src_format,
GEGL_RECTANGLE (0, 0, cols, rows),
tileWidth * bytes_per_pixel,
@@ -1623,6 +1646,9 @@ load_contiguous (TIFF *tif,
progress += one_row;
}
+
+ g_free (buffer);
+ g_free (bw_buffer);
}
@@ -1632,6 +1658,7 @@ load_separate (TIFF *tif,
const Babl *type,
gushort bps,
gushort spp,
+ gboolean is_bw,
gint extra)
{
guint32 imageWidth, imageLength;
@@ -1642,7 +1669,8 @@ load_separate (TIFF *tif,
const Babl *src_format;
GeglBufferIterator *iter;
guchar *buffer;
- gdouble progress = 0.0;
+ guchar *bw_buffer = NULL;
+ gdouble progress = 0.0;
gdouble one_row;
gint i, compindex;
@@ -1666,6 +1694,9 @@ load_separate (TIFF *tif,
buffer = g_malloc (TIFFScanlineSize (tif));
}
+ if (is_bw)
+ bw_buffer = g_malloc (tileWidth * tileLength);
+
one_row = (gdouble) tileLength / (gdouble) imageLength;
src_format = babl_format_n (type, 1);
@@ -1700,7 +1731,7 @@ load_separate (TIFF *tif,
for (x = 0; x < imageWidth; x += tileWidth)
{
gimp_progress_update (progress + one_row *
- ( (gdouble) x / (gdouble) imageWidth));
+ ((gdouble) x / (gdouble) imageWidth));
if (TIFFIsTiled (tif))
TIFFReadTile (tif, buffer, x, y, 0, compindex);
@@ -1710,7 +1741,10 @@ load_separate (TIFF *tif,
cols = MIN (imageWidth - x, tileWidth);
rows = MIN (imageLength - y, tileLength);
- src_buf = gegl_buffer_linear_new_from_data (buffer,
+ if (is_bw)
+ convert_bit2byte (buffer, bw_buffer, rows, cols);
+
+ src_buf = gegl_buffer_linear_new_from_data (is_bw ? bw_buffer : buffer,
src_format,
GEGL_RECTANGLE (0, 0, cols, rows),
GEGL_AUTO_ROWSTRIDE,
@@ -1755,12 +1789,14 @@ load_separate (TIFF *tif,
}
g_free (buffer);
+ g_free (bw_buffer);
}
-#if 0
+static guchar bit2byte[256 * 8];
+
static void
-fill_bit2byte(void)
+fill_bit2byte (void)
{
static gboolean filled = FALSE;
@@ -1778,4 +1814,32 @@ fill_bit2byte(void)
filled = TRUE;
}
-#endif
+
+static void
+convert_bit2byte (const guchar *src,
+ guchar *dest,
+ gint rows,
+ gint cols)
+{
+ gint row;
+
+ for (row = 0; row < rows; row++)
+ {
+ gint col = cols;
+
+ while (col >= 8)
+ {
+ memcpy (dest, bit2byte + *src * 8, 8);
+ dest += 8;
+ col -= 8;
+ src++;
+ }
+
+ if (col > 0)
+ {
+ memcpy (dest, bit2byte + *src * 8, col);
+ dest += col;
+ src++;
+ }
+ }
+}
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