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plug-ins: Add Esm Software PIX format import support

This commit is contained in:
Alx Sa 2023-09-23 17:10:20 +00:00
parent cf5d92aaf8
commit cb352ab5b2
1 changed files with 98 additions and 3 deletions
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101
plug-ins/common/file-pix.c
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@ -106,6 +106,8 @@ static GimpValueArray * pix_save (GimpProcedure *procedure,
static GimpImage * load_image (GFile *file,
GError **error);
static GimpImage * load_esm_image (GInputStream *input,
GError **error);
static gboolean save_image (GFile *file,
GimpImage *image,
GimpDrawable *drawable,
@ -170,9 +172,9 @@ pix_create_procedure (GimpPlugIn *plug_in,
gimp_procedure_set_documentation (procedure,
"Loads files of the Alias|Wavefront "
"Pix file format",
"or Esm Software Pix file format",
"Loads files of the Alias|Wavefront "
"Pix file format",
"or Esm Software Pix file format",
name);
gimp_procedure_set_attribution (procedure,
"Michael Taylor",
@ -181,6 +183,10 @@ pix_create_procedure (GimpPlugIn *plug_in,
gimp_file_procedure_set_extensions (GIMP_FILE_PROCEDURE (procedure),
"pix,matte,mask,alpha,als");
/* Magic Number for Esm Software PIX files */
gimp_file_procedure_set_magics (GIMP_FILE_PROCEDURE (procedure),
"0,string,Esm Software PIX file");
}
else if (! strcmp (name, SAVE_PROC))
{
@ -371,7 +377,7 @@ load_image (GFile *file,
GimpImageType gdtype;
guchar *dest;
guchar *dest_base;
GimpImage *image;
GimpImage *image = NULL;
GimpLayer *layer;
gushort width, height, depth;
gint i, j, tile_height, row;
@ -413,6 +419,28 @@ load_image (GFile *file,
}
else
{
/* Check if this is Esm Software PIX file format */
gchar esm_header[22];
gsize bytes_read;
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_SET, NULL, NULL);
if (g_input_stream_read_all (input, &esm_header, sizeof (esm_header),
&bytes_read, NULL, NULL))
{
esm_header[21] = '\0';
if (g_str_has_prefix (esm_header, "Esm Software PIX file"))
image = load_esm_image (input, error);
if (image)
{
g_object_unref (input);
gimp_progress_update (1.0);
return image;
}
}
/* Header is invalid */
g_object_unref (input);
return NULL;
@ -530,6 +558,73 @@ load_image (GFile *file,
return image;
}
static GimpImage *
load_esm_image (GInputStream *input,
GError **error)
{
GimpImage *image = NULL;
GimpValueArray *return_vals = NULL;
GFile *temp_file = NULL;
FILE *fp;
goffset file_size;
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_END, NULL, error);
file_size = g_seekable_tell (G_SEEKABLE (input));
g_seekable_seek (G_SEEKABLE (input), 21, G_SEEK_SET, NULL, error);
/* Esm Software PIX format is just a JPEG with an extra 21 byte header */
temp_file = gimp_temp_file ("jpeg");
fp = g_fopen (g_file_peek_path (temp_file), "wb");
if (! fp)
{
g_file_delete (temp_file, NULL, NULL);
g_object_unref (temp_file);
g_message (_("Error trying to open temporary JPEG file '%s' "
"for Esm Software pix loading: %s"),
gimp_file_get_utf8_name (temp_file),
g_strerror (errno));
return NULL;
}
else
{
guchar buffer[file_size - 21];
if (! g_input_stream_read_all (input, buffer, sizeof (buffer),
NULL, NULL, error))
{
g_file_delete (temp_file, NULL, NULL);
g_object_unref (temp_file);
g_printerr (_("Invalid Esm Software PIX file"));
return NULL;
}
fwrite (buffer, sizeof (guchar), file_size, fp);
fclose (fp);
return_vals =
gimp_pdb_run_procedure (gimp_get_pdb (),
"file-jpeg-load",
GIMP_TYPE_RUN_MODE, GIMP_RUN_NONINTERACTIVE,
G_TYPE_FILE, temp_file,
G_TYPE_NONE);
if (return_vals)
{
image = g_value_get_object (gimp_value_array_index (return_vals, 1));
gimp_value_array_unref (return_vals);
}
g_file_delete (temp_file, NULL, NULL);
g_object_unref (temp_file);
}
return image;
}
/*
* Description:
* save the given file out as an alias pix or matte file