static tsize_t
tiff_load_read (thandle_t handle, tdata_t buf, tsize_t size)
{
- ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
-
- if (context->pos + size > context->used)
- return 0;
-
- memcpy (buf, context->buffer + context->pos, size);
- context->pos += size;
- return size;
+ ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
+
+ if (context->pos + size > context->used)
+ return 0;
+
+ memcpy (buf, context->buffer + context->pos, size);
+ context->pos += size;
+ return size;
}
static tsize_t
tiff_load_write (thandle_t handle, tdata_t buf, tsize_t size)
{
- return -1;
+ return -1;
}
static toff_t
tiff_load_seek (thandle_t handle, toff_t offset, int whence)
{
- ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
-
- switch (whence) {
- case SEEK_SET:
- if (offset > context->used)
- return -1;
- context->pos = offset;
- break;
- case SEEK_CUR:
- if (offset + context->pos >= context->used)
- return -1;
- context->pos += offset;
- break;
- case SEEK_END:
- if (offset + context->used > context->used)
- return -1;
- context->pos = context->used + offset;
- break;
- default:
- return -1;
- }
- return context->pos;
+ ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
+
+ switch (whence)
+ {
+ case SEEK_SET:
+ if (offset > context->used)
+ return -1;
+ context->pos = offset;
+ break;
+ case SEEK_CUR:
+ if (offset + context->pos >= context->used)
+ return -1;
+ context->pos += offset;
+ break;
+ case SEEK_END:
+ if (offset + context->used > context->used)
+ return -1;
+ context->pos = context->used + offset;
+ break;
+ default:
+ return -1;
+ }
+
+ return context->pos;
}
static int
tiff_load_close (thandle_t context)
{
- return 0;
+ return 0;
}
static toff_t
tiff_load_size (thandle_t handle)
{
- ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
-
- return context->used;
+ ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
+ return context->used;
}
static int
tiff_load_map_file (thandle_t handle, tdata_t *buf, toff_t *size)
{
- ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
-
- *buf = (tdata_t *) context->buffer;
- *size = context->used;
-
- return 0;
+ ImageLoaderTiff *context = (ImageLoaderTiff *)handle;
+
+ *buf = (tdata_t *) context->buffer;
+ *size = context->used;
+
+ return 0;
}
static void
{
ImageLoaderTiff *lt = (ImageLoaderTiff *) loader;
- TIFF *tiff;
+ TIFF *tiff;
guchar *pixels = NULL;
gint width, height, rowstride, bytes;
uint16 orientation = 0;
TIFFSetWarningHandler(NULL);
- tiff = TIFFClientOpen ("libtiff-geeqie", "r", lt,
- tiff_load_read, tiff_load_write,
- tiff_load_seek, tiff_load_close,
- tiff_load_size,
- tiff_load_map_file, tiff_load_unmap_file);
- if (!tiff)
- {
- DEBUG_1("Failed to open TIFF image");
- return FALSE;
- }
-
+ tiff = TIFFClientOpen ( "libtiff-geeqie", "r", lt,
+ tiff_load_read, tiff_load_write,
+ tiff_load_seek, tiff_load_close,
+ tiff_load_size,
+ tiff_load_map_file, tiff_load_unmap_file);
+ if (!tiff)
+ {
+ DEBUG_1("Failed to open TIFF image");
+ return FALSE;
+ }
- if (!TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &width)) {
+ if (!TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &width))
+ {
DEBUG_1("Could not get image width (bad TIFF file)");
TIFFClose(tiff);
- return FALSE;
- }
-
- if (!TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &height)) {
- DEBUG_1("Could not get image height (bad TIFF file)");
+ return FALSE;
+ }
+
+ if (!TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &height))
+ {
+ DEBUG_1("Could not get image height (bad TIFF file)");
TIFFClose(tiff);
- return FALSE;
- }
+ return FALSE;
+ }
- if (width <= 0 || height <= 0) {
- DEBUG_1("Width or height of TIFF image is zero");
+ if (width <= 0 || height <= 0)
+ {
+ DEBUG_1("Width or height of TIFF image is zero");
TIFFClose(tiff);
- return FALSE;
- }
-
- rowstride = width * 4;
- if (rowstride / 4 != width) { /* overflow */
- DEBUG_1("Dimensions of TIFF image too large");
+ return FALSE;
+ }
+
+ rowstride = width * 4;
+ if (rowstride / 4 != width)
+ { /* overflow */
+ DEBUG_1("Dimensions of TIFF image too large");
TIFFClose(tiff);
- return FALSE;
- }
-
- bytes = height * rowstride;
- if (bytes / rowstride != height) { /* overflow */
- DEBUG_1("Dimensions of TIFF image too large");
+ return FALSE;
+ }
+
+ bytes = height * rowstride;
+ if (bytes / rowstride != height)
+ { /* overflow */
+ DEBUG_1("Dimensions of TIFF image too large");
TIFFClose(tiff);
- return FALSE;
- }
+ return FALSE;
+ }
lt->requested_width = width;
lt->requested_height = height;
lt->size_cb(loader, lt->requested_width, lt->requested_height, lt->data);
- pixels = g_try_malloc (bytes);
+ pixels = g_try_malloc (bytes);
- if (!pixels) {
- DEBUG_1("Insufficient memory to open TIFF file");
+ if (!pixels)
+ {
+ DEBUG_1("Insufficient memory to open TIFF file");
TIFFClose(tiff);
- return FALSE;
- }
+ return FALSE;
+ }
lt->pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE, 8,
- width, height, rowstride,
- free_buffer, NULL);
- if (!lt->pixbuf) {
- g_free (pixels);
- DEBUG_1("Insufficient memory to open TIFF file");
+ width, height, rowstride,
+ free_buffer, NULL);
+ if (!lt->pixbuf)
+ {
+ g_free (pixels);
+ DEBUG_1("Insufficient memory to open TIFF file");
TIFFClose(tiff);
- return FALSE;
- }
+ return FALSE;
+ }
/* Set the "orientation" key associated with this image. libtiff
orientation handling is odd, so further processing is required
break;
}
-
lt->area_prepared_cb(loader, lt->data);
-
-
- if( TIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &rowsperstrip) )
+ if (TIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &rowsperstrip))
{
/* read by strip */
int row;
guchar *wrk_line = (guchar *)g_malloc(width * sizeof (uint32));
-
- for( row = 0; row < height; row += rowsperstrip )
+ for (row = 0; row < height; row += rowsperstrip)
{
int rows_to_write, i_row;
/*
* Figure out the number of scanlines actually in this strip.
*/
- if( row + (int)rowsperstrip > height )
+ if (row + (int)rowsperstrip > height)
rows_to_write = height - row;
else
rows_to_write = rowsperstrip;
-
-
/*
* For some reason the TIFFReadRGBAStrip() function chooses the
* lower left corner as the origin. Vertically mirror scanlines.
*/
- for( i_row = 0; i_row < rows_to_write / 2; i_row++ )
+ for (i_row = 0; i_row < rows_to_write / 2; i_row++)
{
guchar *top_line, *bottom_line;
memcpy(wrk_line, top_line, 4*width);
memcpy(top_line, bottom_line, 4*width);
memcpy(bottom_line, wrk_line, 4*width);
- }
+ }
lt->area_updated_cb(loader, 0, row, width, rows_to_write, lt->data);
}
g_free(wrk_line);
}
#if G_BYTE_ORDER == G_BIG_ENDIAN
- /* Turns out that the packing used by TIFFRGBAImage depends on
- * the host byte order...
- */
+ /* Turns out that the packing used by TIFFRGBAImage depends on
+ * the host byte order...
+ */
while (pixels < lt->pixbuf->pixels + bytes)
{
uint32 pixel = *(uint32 *)pixels;
static gpointer image_loader_tiff_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
{
- ImageLoaderTiff *loader = g_new0(ImageLoaderTiff, 1);
-
+ ImageLoaderTiff *loader = g_new0(ImageLoaderTiff, 1);
+
loader->area_updated_cb = area_updated_cb;
loader->size_cb = size_cb;
loader->area_prepared_cb = area_prepared_cb;
#endif
+/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / commitdiff