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gimp/plug-ins/common/file-raw.c

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/* Raw image loader (and saver) plugin 3.4
*
* by tim copperfield [timecop@japan.co.jp]
* http://www.ne.jp/asahi/linux/timecop
*
* Updated for Gimp 2.1 by pg@futureware.at and mitch@gimp.org
*
* This plugin is not based on any other plugin.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib/gstdio.h>
#ifdef G_OS_WIN32
#include <io.h>
#endif
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
#include "libgimp/stdplugins-intl.h"
#define LOAD_PROC "file-raw-load"
#define SAVE_PROC "file-raw-save"
#define PLUG_IN_BINARY "file-raw"
#define PREVIEW_SIZE 350
typedef enum
{
RAW_RGB, /* RGB Image */
RAW_RGBA, /* RGB Image with an Alpha channel */
RAW_RGB565, /* RGB Image 16bit, 5,6,5 bits per channel */
RAW_PLANAR, /* Planar RGB */
RAW_INDEXED, /* Indexed image */
RAW_INDEXEDA /* Indexed image with an Alpha channel */
} RawType;
typedef enum
{
RAW_PALETTE_RGB, /* standard RGB */
RAW_PALETTE_BGR /* Windows BGRX */
} RawPaletteType;
typedef struct
{
gint32 file_offset; /* offset to beginning of image in raw data */
gint32 image_width; /* width of the raw image */
gint32 image_height; /* height of the raw image */
RawType image_type; /* type of image (RGB, INDEXED, etc) */
gint32 palette_offset; /* offset inside the palette file, if any */
RawPaletteType palette_type; /* type of palette (RGB/BGR) */
} RawConfig;
typedef struct
{
FILE *fp; /* pointer to the already open file */
GimpDrawable *drawable; /* gimp drawable */
GimpPixelRgn region; /* gimp pixel region */
gint32 image_id; /* gimp image id */
guchar cmap[768]; /* color map for indexed images */
} RawGimpData;
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
/* prototypes for the new load functions */
static gboolean raw_load_standard (RawGimpData *data,
gint bpp);
static gboolean raw_load_rgb565 (RawGimpData *data);
static gboolean raw_load_planar (RawGimpData *data);
static gboolean raw_load_palette (RawGimpData *data,
const gchar *palette_filename);
/* support functions */
static gint32 get_file_info (const gchar *filename);
static void raw_read_row (FILE *fp,
guchar *buf,
gint32 offset,
gint32 size);
static int mmap_read (gint fd,
gpointer buf,
gint32 len,
gint32 pos,
gint rowstride);
static void rgb_565_to_888 (guint16 *in,
guchar *out,
gint32 num_pixels);
static gint32 load_image (const gchar *filename,
GError **error);
static GimpPDBStatusType save_image (const gchar *filename,
gint32 image_id,
gint32 drawable_id,
GError **error);
/* gui functions */
static void preview_update (GimpPreviewArea *preview);
static void palette_update (GimpPreviewArea *preview);
static gboolean load_dialog (const gchar *filename);
static gboolean save_dialog (const gchar *filename,
gint32 image_id,
gint32 drawable_id);
static void palette_callback (GtkFileChooser *button,
GimpPreviewArea *preview);
static RawConfig *runtime = NULL;
static gchar *palfile = NULL;
static gint preview_fd = -1;
static guchar preview_cmap[1024];
static gboolean preview_cmap_update = TRUE;
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN()
static void
query (void)
{
static const GimpParamDef load_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0) }" },
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_STRING, "raw-filename", "The name entered" }
};
static const GimpParamDef load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
static const GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
{ GIMP_PDB_STRING, "raw-filename", "The name entered" }
};
gimp_install_procedure (LOAD_PROC,
"Load raw images, specifying image information",
"Load raw images, specifying image information",
"timecop, pg@futureware.at",
"timecop, pg@futureware.at",
"Aug 2004",
N_("Raw image data"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
gimp_register_load_handler (LOAD_PROC, "data", "");
gimp_install_procedure (SAVE_PROC,
"Dump images to disk in raw format",
"Dump images to disk in raw format",
"timecop, pg@futureware.at",
"timecop, pg@futureware.at",
"Aug 2004",
N_("Raw image data"),
"INDEXED, GRAY, RGB, RGBA",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_save_handler (SAVE_PROC, "", "");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GError *error = NULL;
gint32 image_id;
gint32 drawable_id;
run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
/* allocate config structure and fill with defaults */
runtime = g_new0 (RawConfig, 1);
runtime->file_offset = 0;
runtime->image_width = PREVIEW_SIZE;
runtime->image_height = PREVIEW_SIZE;
runtime->palette_offset = 0;
runtime->palette_type = RAW_PALETTE_RGB;
if (strcmp (name, LOAD_PROC) == 0)
{
if (run_mode == GIMP_RUN_INTERACTIVE)
{
gimp_get_data (LOAD_PROC, runtime);
preview_fd = g_open (param[1].data.d_string, O_RDONLY, 0);
if (preview_fd < 0)
{
g_set_error (&error,
G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (param[1].data.d_string),
g_strerror (errno));
status = GIMP_PDB_EXECUTION_ERROR;
}
else
{
if (! load_dialog (param[1].data.d_string))
status = GIMP_PDB_CANCEL;
close (preview_fd);
}
}
else
{
/* we only run interactively due to the nature of this plugin.
* things like generate preview etc like to call us non-
* interactively. here we stop that.
*/
status = GIMP_PDB_CALLING_ERROR;
}
/* we are okay, and the user clicked OK in the load dialog */
if (status == GIMP_PDB_SUCCESS)
{
image_id = load_image (param[1].data.d_string, &error);
if (image_id != -1)
{
gimp_set_data (LOAD_PROC, runtime, sizeof (RawConfig));
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_id;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
else if (strcmp (name, SAVE_PROC) == 0)
{
image_id = param[1].data.d_int32;
drawable_id = param[2].data.d_int32;
if (run_mode == GIMP_RUN_INTERACTIVE)
{
gimp_get_data (SAVE_PROC, runtime);
if (nparams != 5)
{
status = GIMP_PDB_CALLING_ERROR;
}
else if (! save_dialog (param[3].data.d_string,
image_id, drawable_id))
{
status = GIMP_PDB_CANCEL;
}
}
else
{
/* we want to make sure we always do save-as for raw images
* to avoid confusion and data loss
*/
status = GIMP_PDB_CALLING_ERROR;
}
if (status == GIMP_PDB_SUCCESS)
{
status = save_image (param[3].data.d_string, image_id, drawable_id,
&error);
}
}
g_free (runtime);
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
/* get file size from a filename */
static gint32
get_file_info (const gchar *filename)
{
struct stat status;
g_stat (filename, &status);
return status.st_size;
}
/* new image handle functions */
static void
raw_read_row (FILE *fp,
guchar *buf,
gint32 offset,
gint32 size)
{
fseek (fp, offset, SEEK_SET);
if (! fread (buf, size, 1, fp))
{
g_printerr ("fread failed\n");
memset (buf, 0xFF, size);
}
}
/* similar to the above function but memset is done differently. has nothing
* to do with mmap, by the way
*/
static gint
mmap_read (gint fd,
void *buf,
gint32 len,
gint32 pos,
gint rowstride)
{
lseek (fd, pos, SEEK_SET);
if (! read (fd, buf, len))
memset (buf, 0xFF, rowstride);
return 0;
}
/* this handles 1, 2, 3, 4 bpp "standard" images */
static gboolean
raw_load_standard (RawGimpData *data,
gint bpp)
{
guchar *row = NULL;
row = g_try_malloc (runtime->image_width * runtime->image_height * bpp);
if (! row)
return FALSE;
raw_read_row (data->fp, row, runtime->file_offset,
(runtime->image_width * runtime->image_height * bpp));
gimp_pixel_rgn_set_rect (&data->region, row,
0, 0, runtime->image_width, runtime->image_height);
g_free (row);
return TRUE;
}
/* this handles RGB565 images */
static gboolean
raw_load_rgb565 (RawGimpData *data)
{
gint32 num_pixels = runtime->image_width * runtime->image_height;
guint16 *in = g_malloc (num_pixels * 2);
guchar *row = g_malloc (num_pixels * 3);
raw_read_row (data->fp, (guchar *)in, runtime->file_offset, num_pixels * 2);
rgb_565_to_888 (in, row, num_pixels);
gimp_pixel_rgn_set_rect (&data->region, row,
0, 0, runtime->image_width, runtime->image_height);
g_free (in);
g_free (row);
return TRUE;
}
/* this converts a 2bpp buffer to a 3bpp buffer in is a buffer of
* 16bit pixels, out is a buffer of 24bit pixels
*/
static void
rgb_565_to_888 (guint16 *in,
guchar *out,
gint32 num_pixels)
{
guint32 i, j;
for (i = 0, j = 0; i < num_pixels; i++)
{
out[j++] = 0x00FF & ((in[i] >> 8) | ((in[i] >> 13) & 0x0007));
out[j++] = 0x00FF & ((in[i] >> 3) | ((in[i] >> 9) & 0x0003));
out[j++] = 0x00FF & ((in[i] << 3) | ((in[i] >> 2) & 0x0007));
}
}
/* this handles 3 bpp "planar" images */
static gboolean
raw_load_planar (RawGimpData *data)
{
gint32 r_offset, g_offset, b_offset, i, j, k;
guchar *r_row, *b_row, *g_row, *row;
gint bpp = 3; /* adding support for alpha channel should be easy */
/* red, green, blue rows temporary data */
r_row = g_malloc (runtime->image_width);
g_row = g_malloc (runtime->image_width);
b_row = g_malloc (runtime->image_width);
/* row for the pixel region, after combining RGB together */
row = g_malloc (runtime->image_width * bpp);
r_offset = runtime->file_offset;
g_offset = r_offset + runtime->image_width * runtime->image_height;
b_offset = g_offset + runtime->image_width * runtime->image_height;
for (i = 0; i < runtime->image_height; i++)
{
/* Read R, G, B rows */
raw_read_row (data->fp, r_row, r_offset + (runtime->image_width * i),
runtime->image_width);
raw_read_row (data->fp, g_row, g_offset + (runtime->image_width * i),
runtime->image_width);
raw_read_row (data->fp, b_row, b_offset + (runtime->image_width * i),
runtime->image_width);
/* Combine separate R, G and B rows into RGB triples */
for (j = 0, k = 0; j < runtime->image_width; j++)
{
row[k++] = r_row[j];
row[k++] = g_row[j];
row[k++] = b_row[j];
}
gimp_pixel_rgn_set_row (&data->region, row, 0, i, runtime->image_width);
gimp_progress_update ((gfloat) i / (gfloat) runtime->image_height);
}
g_free (row);
g_free (r_row);
g_free (g_row);
g_free (b_row);
return TRUE;
}
static gboolean
raw_load_palette (RawGimpData *data,
const gchar *palette_file)
{
guchar temp[1024];
gint fd, i, j;
if (palette_file)
{
fd = g_open (palette_file, O_RDONLY, 0);
if (! fd)
return FALSE;
lseek (fd, runtime->palette_offset, SEEK_SET);
switch (runtime->palette_type)
{
case RAW_PALETTE_RGB:
read (fd, data->cmap, 768);
break;
case RAW_PALETTE_BGR:
read (fd, temp, 1024);
for (i = 0, j = 0; i < 256; i++)
{
data->cmap[j++] = temp[i * 4 + 2];
data->cmap[j++] = temp[i * 4 + 1];
data->cmap[j++] = temp[i * 4 + 0];
}
break;
}
close (fd);
}
else
{
/* make a fake grayscale color map */
for (i = 0, j = 0; i < 256; i++)
{
data->cmap[j++] = i;
data->cmap[j++] = i;
data->cmap[j++] = i;
}
}
gimp_image_set_colormap (data->image_id, data->cmap, 256);
return TRUE;
}
/* end new image handle functions */
static GimpPDBStatusType
save_image (const gchar *filename,
gint32 image_id,
gint32 drawable_id,
GError **error)
{
GimpDrawable *drawable;
GimpPixelRgn pixel_rgn;
guchar *cmap = NULL; /* colormap for indexed images */
guchar *buf;
guchar *red, *green, *blue, *alpha = NULL;
gint32 width, height, bpp = 0;
gboolean have_alpha = 0;
FILE *fp;
gint i, j = 0;
gint palsize = 0;
GimpPDBStatusType ret = GIMP_PDB_EXECUTION_ERROR;
/* get info about the current image */
drawable = gimp_drawable_get (drawable_id);
bpp = gimp_drawable_bpp (drawable_id);
have_alpha = gimp_drawable_has_alpha (drawable_id);
if (gimp_drawable_is_indexed (drawable_id))
cmap = gimp_image_get_colormap (image_id, &palsize);
width = drawable->width;
height = drawable->height;
gimp_pixel_rgn_init (&pixel_rgn, drawable,
0, 0, drawable->width, drawable->height,
FALSE, FALSE);
buf = g_new (guchar, width * height * bpp);
gimp_pixel_rgn_get_rect (&pixel_rgn, buf, 0, 0, width, height);
fp = g_fopen (filename, "wb");
if (! fp)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return GIMP_PDB_EXECUTION_ERROR;
}
ret = GIMP_PDB_SUCCESS;
switch (runtime->image_type)
{
case RAW_RGB:
if (! fwrite (buf, width * height * bpp, 1, fp))
{
return GIMP_PDB_EXECUTION_ERROR;
}
fclose (fp);
if (cmap)
{
/* we have a colormap, too.write it into filename+pal */
gchar *newfile = g_strconcat (filename, ".pal", NULL);
gchar *temp;
fp = g_fopen (newfile, "wb");
if (! fp)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (newfile), g_strerror (errno));
return GIMP_PDB_EXECUTION_ERROR;
}
switch (runtime->palette_type)
{
case RAW_PALETTE_RGB:
if (!fwrite (cmap, palsize * 3, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
fclose (fp);
break;
case RAW_PALETTE_BGR:
temp = g_malloc0 (palsize * 4);
for (i = 0, j = 0; i < palsize * 3; i += 3)
{
temp[j++] = cmap[i + 2];
temp[j++] = cmap[i + 1];
temp[j++] = cmap[i + 0];
temp[j++] = 0;
}
if (!fwrite (temp, palsize * 4, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
fclose (fp);
g_free (temp);
break;
}
}
break;
case RAW_PLANAR:
red = g_new (guchar, width * height);
green = g_new (guchar, width * height);
blue = g_new (guchar, width * height);
if (have_alpha)
alpha = g_new (guchar, width * height);
for (i = 0; i < width * height * bpp; i += bpp)
{
red[j] = buf[i + 0];
green[j] = buf[i + 1];
blue[j] = buf[i + 2];
if (have_alpha)
alpha[j] = buf[i + 3];
j++;
}
ret = GIMP_PDB_SUCCESS;
if (!fwrite (red, width * height, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
if (!fwrite (green, width * height, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
if (!fwrite (blue, width * height, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
if (have_alpha)
{
if (!fwrite (alpha, width * height, 1, fp))
ret = GIMP_PDB_EXECUTION_ERROR;
}
g_free (red);
g_free (green);
g_free (blue);
if (have_alpha)
g_free (alpha);
fclose (fp);
break;
default:
break;
}
return ret;
}
static gint32
load_image (const gchar *filename,
GError **error)
{
RawGimpData *data;
gint32 layer_id = -1;
GimpImageType ltype = GIMP_RGB;
GimpImageBaseType itype = GIMP_RGB_IMAGE;
gint32 size;
gint bpp = 0;
data = g_new0 (RawGimpData, 1);
data->fp = g_fopen (filename, "rb");
if (! data->fp)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return -1;
}
gimp_progress_init_printf (_("Opening '%s'"),
gimp_filename_to_utf8 (filename));
size = get_file_info (filename);
switch (runtime->image_type)
{
case RAW_RGB: /* standard RGB */
case RAW_PLANAR: /* planar RGB */
bpp = 3;
ltype = GIMP_RGB_IMAGE;
itype = GIMP_RGB;
break;
case RAW_RGB565: /* RGB565 */
bpp = 2;
ltype = GIMP_RGB_IMAGE;
itype = GIMP_RGB;
break;
case RAW_RGBA: /* RGB + alpha */
bpp = 4;
ltype = GIMP_RGBA_IMAGE;
itype = GIMP_RGB;
break;
case RAW_INDEXED: /* Indexed */
bpp = 1;
ltype = GIMP_INDEXED_IMAGE;
itype = GIMP_INDEXED;
break;
case RAW_INDEXEDA: /* Indexed + alpha */
bpp = 2;
ltype = GIMP_INDEXEDA_IMAGE;
itype = GIMP_INDEXED;
break;
}
/* make sure we don't load image bigger than file size */
if (runtime->image_height > (size / runtime->image_width / bpp))
runtime->image_height = size / runtime->image_width / bpp;
data->image_id = gimp_image_new (runtime->image_width,
runtime->image_height,
itype);
gimp_image_set_filename(data->image_id, filename);
layer_id = gimp_layer_new (data->image_id, _("Background"),
runtime->image_width, runtime->image_height, ltype,
100, GIMP_NORMAL_MODE);
gimp_image_add_layer (data->image_id, layer_id, 0);
data->drawable = gimp_drawable_get (layer_id);
gimp_pixel_rgn_init (&data->region, data->drawable,
0, 0, runtime->image_width, runtime->image_height,
TRUE, FALSE);
switch (runtime->image_type)
{
case RAW_RGB:
case RAW_RGBA:
raw_load_standard (data, bpp);
break;
case RAW_RGB565:
raw_load_rgb565 (data);
break;
case RAW_PLANAR:
raw_load_planar (data);
break;
case RAW_INDEXED:
case RAW_INDEXEDA:
raw_load_palette (data, palfile);
raw_load_standard (data, bpp);
break;
}
fclose (data->fp);
gimp_drawable_flush (data->drawable);
gimp_drawable_detach (data->drawable);
return data->image_id;
}
/* misc GUI stuff */
static void
preview_update (GimpPreviewArea *preview)
{
gint width;
gint height;
gint32 pos;
gint x, y;
width = MIN (runtime->image_width, preview->width);
height = MIN (runtime->image_height, preview->height);
gimp_preview_area_fill (preview,
0, 0, preview->width, preview->height,
255, 255, 255);
switch (runtime->image_type)
{
case RAW_RGB:
/* standard RGB image */
{
guchar *row = g_malloc0 (width * 3);
for (y = 0; y < height; y++)
{
pos = runtime->file_offset + runtime->image_width * y * 3;
mmap_read (preview_fd, row, width * 3, pos, width * 3);
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGB_IMAGE, row, width * 3);
}
g_free (row);
}
break;
case RAW_PLANAR:
{
guchar *r_row = g_malloc0 (width);
guchar *g_row = g_malloc0 (width);
guchar *b_row = g_malloc0 (width);
guchar *row = g_malloc0 (width * 3);
for (y = 0; y < height; y++)
{
gint j, k;
pos = (runtime->file_offset +
(y * runtime->image_width));
mmap_read (preview_fd, r_row, width, pos, width);
pos = (runtime->file_offset +
(runtime->image_width * (runtime->image_height + y)));
mmap_read (preview_fd, g_row, width, pos, width);
pos = (runtime->file_offset +
(runtime->image_width * (runtime->image_height * 2 + y)));
mmap_read (preview_fd, b_row, width, pos, width);
for (j = 0, k = 0; j < width; j++)
{
row[k++] = r_row[j];
row[k++] = g_row[j];
row[k++] = b_row[j];
}
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGB_IMAGE, row, width * 3);
}
g_free (b_row);
g_free (g_row);
g_free (r_row);
g_free (row);
}
break;
case RAW_RGBA:
/* RGB + alpha image */
{
guchar *row = g_malloc0 (width * 4);
for (y = 0; y < height; y++)
{
pos = runtime->file_offset + runtime->image_width * y * 4;
mmap_read (preview_fd, row, width * 4, pos, width * 4);
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGBA_IMAGE, row, width * 4);
}
g_free (row);
}
break;
case RAW_RGB565:
/* RGB565 image */
{
guint16 *in = g_malloc0 (width * 2);
guchar *row = g_malloc0 (width * 3);
for (y = 0; y < height; y++)
{
pos = runtime->file_offset + runtime->image_width * y * 2;
mmap_read (preview_fd, in, width * 2, pos, width * 2);
rgb_565_to_888 (in, row, width);
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGB_IMAGE, row, width * 3);
}
g_free (row);
g_free (in);
}
break;
case RAW_INDEXED:
case RAW_INDEXEDA:
/* indexed image */
{
gboolean alpha = (runtime->image_type == RAW_INDEXEDA);
guchar *index = g_malloc0 (width * (alpha ? 2 : 1));
guchar *row = g_malloc0 (width * (alpha ? 4 : 3));
if (preview_cmap_update)
{
if (palfile)
{
gint fd;
fd = g_open (palfile, O_RDONLY, 0);
lseek (fd, runtime->palette_offset, SEEK_SET);
read (fd, preview_cmap,
(runtime->palette_type == RAW_PALETTE_RGB) ? 768 : 1024);
close (fd);
}
else
{
/* make fake palette, maybe overwrite it later */
for (y = 0, x = 0; y < 256; y++)
{
preview_cmap[x++] = y;
preview_cmap[x++] = y;
if (runtime->palette_type == RAW_PALETTE_RGB)
{
preview_cmap[x++] = y;
}
else
{
preview_cmap[x++] = y;
preview_cmap[x++] = 0;
}
}
}
preview_cmap_update = FALSE;
}
for (y = 0; y < height; y++)
{
guchar *p = row;
if (alpha)
{
pos = runtime->file_offset + runtime->image_width * 2 * y;
mmap_read (preview_fd, index, width * 2, pos, width);
for (x = 0; x < width; x++)
{
switch (runtime->palette_type)
{
case RAW_PALETTE_RGB:
*p++ = preview_cmap[index[2 * x] * 3 + 0];
*p++ = preview_cmap[index[2 * x] * 3 + 1];
*p++ = preview_cmap[index[2 * x] * 3 + 2];
*p++ = index[2 * x + 1];
break;
case RAW_PALETTE_BGR:
*p++ = preview_cmap[index[2 * x] * 4 + 2];
*p++ = preview_cmap[index[2 * x] * 4 + 1];
*p++ = preview_cmap[index[2 * x] * 4 + 0];
*p++ = index[2 * x + 1];
break;
}
}
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGBA_IMAGE, row, width * 4);
}
else
{
pos = runtime->file_offset + runtime->image_width * y;
mmap_read (preview_fd, index, width, pos, width);
for (x = 0; x < width; x++)
{
switch (runtime->palette_type)
{
case RAW_PALETTE_RGB:
*p++ = preview_cmap[index[x] * 3 + 0];
*p++ = preview_cmap[index[x] * 3 + 1];
*p++ = preview_cmap[index[x] * 3 + 2];
break;
case RAW_PALETTE_BGR:
*p++ = preview_cmap[index[x] * 4 + 2];
*p++ = preview_cmap[index[x] * 4 + 1];
*p++ = preview_cmap[index[x] * 4 + 0];
break;
}
}
gimp_preview_area_draw (preview, 0, y, width, 1,
GIMP_RGB_IMAGE, row, width * 3);
}
}
g_free (row);
g_free (index);
}
break;
}
}
static void
palette_update (GimpPreviewArea *preview)
{
preview_cmap_update = TRUE;
preview_update (preview);
}
static gboolean
load_dialog (const gchar *filename)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *table;
GtkWidget *frame;
GtkWidget *combo;
GtkWidget *button;
GtkObject *adj;
gint32 file_size;
gboolean run;
file_size = get_file_info (filename);
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("Load Image from Raw Data"), PLUG_IN_BINARY,
NULL, 0,
gimp_standard_help_func, LOAD_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox);
gtk_widget_show (main_vbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
preview = gimp_preview_area_new ();
gtk_widget_set_size_request (preview, PREVIEW_SIZE, PREVIEW_SIZE);
gtk_container_add (GTK_CONTAINER (frame), preview);
gtk_widget_show (preview);
g_signal_connect_after (preview, "size-allocate",
G_CALLBACK (preview_update),
NULL);
frame = gimp_frame_new (_("Image"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (4, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
combo = gimp_int_combo_box_new (_("RGB"), RAW_RGB,
_("RGB Alpha"), RAW_RGBA,
_("RGB565"), RAW_RGB565,
_("Planar RGB"), RAW_PLANAR,
_("Indexed"), RAW_INDEXED,
_("Indexed Alpha"), RAW_INDEXEDA,
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
runtime->image_type);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Image _Type:"), 0.0, 0.5,
combo, 2, FALSE);
g_signal_connect (combo, "changed",
G_CALLBACK (gimp_int_combo_box_get_active),
&runtime->image_type);
g_signal_connect_swapped (combo, "changed",
G_CALLBACK (preview_update),
preview);
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("O_ffset:"), -1, 9,
runtime->file_offset, 0, file_size, 1, 1000, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&runtime->file_offset);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (preview_update),
preview);
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("_Width:"), -1, 9,
runtime->image_width, 1, file_size, 1, 10, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&runtime->image_width);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (preview_update),
preview);
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
_("_Height:"), -1, 9,
runtime->image_height, 1, file_size, 1, 10, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&runtime->image_height);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (preview_update),
preview);
frame = gimp_frame_new (_("Palette"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (3, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
combo = gimp_int_combo_box_new (_("R, G, B (normal)"), RAW_PALETTE_RGB,
_("B, G, R, X (BMP style)"), RAW_PALETTE_BGR,
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
runtime->palette_type);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("_Palette Type:"), 0.0, 0.5,
combo, 2, FALSE);
g_signal_connect (combo, "changed",
G_CALLBACK (gimp_int_combo_box_get_active),
&runtime->palette_type);
g_signal_connect_swapped (combo, "changed",
G_CALLBACK (palette_update),
preview);
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("Off_set:"), -1, 0,
runtime->palette_offset, 0, 1 << 24, 1, 768, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&runtime->palette_offset);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (palette_update),
preview);
button = gtk_file_chooser_button_new (_("Select Palette File"),
GTK_FILE_CHOOSER_ACTION_OPEN);
if (palfile)
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (button), palfile);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("Pal_ette File:"), 0.0, 0.5,
button, 2, FALSE);
g_signal_connect (button, "selection-changed",
G_CALLBACK (palette_callback),
preview);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
static gboolean
save_dialog (const gchar *filename,
gint32 image_id,
gint32 drawable_id)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *frame;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_export_dialog_new (_("Raw Image"), PLUG_IN_BINARY, SAVE_PROC);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
main_vbox, FALSE, FALSE, 0);
gtk_widget_show (main_vbox);
frame = gimp_int_radio_group_new (TRUE, _("RGB Save Type"),
G_CALLBACK (gimp_radio_button_update),
&runtime->image_type,
runtime->image_type,
_("Standard (R,G,B)"), RAW_RGB, NULL,
_("Planar (RRR,GGG,BBB)"), RAW_PLANAR, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
frame = gimp_int_radio_group_new (TRUE, _("Indexed Palette Type"),
G_CALLBACK (gimp_radio_button_update),
&runtime->palette_type,
runtime->palette_type,
_("R, G, B (normal)"),
RAW_PALETTE_RGB, NULL,
_("B, G, R, X (BMP style)"),
RAW_PALETTE_BGR, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
static void
palette_callback (GtkFileChooser *button,
GimpPreviewArea *preview)
{
if (palfile)
g_free (palfile);
palfile = gtk_file_chooser_get_filename (button);
palette_update (preview);
}
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