516 lines
18 KiB
C
516 lines
18 KiB
C
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/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2021 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gdktiffprivate.h"
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#include <glib/gi18n-lib.h>
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#include "gdkmemoryformatprivate.h"
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#include "gdkmemorytexture.h"
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#include "gdkprofilerprivate.h"
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#include "gdktexturedownloaderprivate.h"
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#include <tiffio.h>
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/* Our main interest in tiff as an image format is that it is
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* flexible enough to save all our texture formats without
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* lossy conversions.
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*
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* The loader isn't meant to be a very versatile. It just aims
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* to load the subset that we're saving ourselves. For anything
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* else, we fall back to TIFFRGBAImage, which is the same api
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* that gdk-pixbuf uses.
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*/
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/* {{{ IO handling */
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typedef struct
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{
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GBytes **out_bytes;
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gchar *data;
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gsize size;
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gsize position;
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} TiffIO;
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static void
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tiff_io_warning (const char *module,
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const char *fmt,
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va_list ap) G_GNUC_PRINTF(2, 0);
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static void
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tiff_io_warning (const char *module,
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const char *fmt,
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va_list ap)
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{
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
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}
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static void
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tiff_io_error (const char *module,
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const char *fmt,
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va_list ap) G_GNUC_PRINTF(2, 0);
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static void
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tiff_io_error (const char *module,
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const char *fmt,
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va_list ap)
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{
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g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
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}
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static tsize_t
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tiff_io_no_read (thandle_t handle,
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tdata_t buffer,
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tsize_t size)
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{
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return (tsize_t) -1;
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}
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static tsize_t
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tiff_io_read (thandle_t handle,
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tdata_t buffer,
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tsize_t size)
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{
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TiffIO *io = (TiffIO *) handle;
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gsize read;
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if (io->position >= io->size)
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return 0;
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read = MIN (size, io->size - io->position);
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memcpy (buffer, io->data + io->position, read);
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io->position += read;
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return (tsize_t) read;
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}
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static tsize_t
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tiff_io_no_write (thandle_t handle,
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tdata_t buffer,
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tsize_t size)
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{
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return (tsize_t) -1;
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}
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static tsize_t
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tiff_io_write (thandle_t handle,
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tdata_t buffer,
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tsize_t size)
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{
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TiffIO *io = (TiffIO *) handle;
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if (io->position > io->size ||
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io->size - io->position < size)
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{
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io->size = io->position + size;
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io->data = g_realloc (io->data, io->size);
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}
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memcpy (io->data + io->position, buffer, size);
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io->position += size;
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return (tsize_t) size;
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}
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static toff_t
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tiff_io_seek (thandle_t handle,
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toff_t offset,
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int whence)
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{
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TiffIO *io = (TiffIO *) handle;
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switch (whence)
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{
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default:
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return -1;
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case SEEK_SET:
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break;
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case SEEK_CUR:
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offset += io->position;
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break;
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case SEEK_END:
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offset += io->size;
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break;
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}
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if (offset < 0)
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return -1;
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io->position = offset;
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return offset;
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}
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static int
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tiff_io_close (thandle_t handle)
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{
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TiffIO *io = (TiffIO *) handle;
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if (io->out_bytes)
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*io->out_bytes = g_bytes_new_take (io->data, io->size);
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g_free (io);
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return 0;
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}
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static toff_t
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tiff_io_get_file_size (thandle_t handle)
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{
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TiffIO *io = (TiffIO *) handle;
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return io->size;
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}
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static TIFF *
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tiff_open_read (GBytes *bytes)
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{
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TiffIO *io;
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TIFFSetWarningHandler ((TIFFErrorHandler) tiff_io_warning);
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TIFFSetErrorHandler ((TIFFErrorHandler) tiff_io_error);
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io = g_new0 (TiffIO, 1);
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io->data = (char *) g_bytes_get_data (bytes, &io->size);
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return TIFFClientOpen ("GTK-read", "r",
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(thandle_t) io,
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tiff_io_read,
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tiff_io_no_write,
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tiff_io_seek,
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tiff_io_close,
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tiff_io_get_file_size,
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NULL, NULL);
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}
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static TIFF *
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tiff_open_write (GBytes **result)
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{
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TiffIO *io;
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TIFFSetWarningHandler ((TIFFErrorHandler) tiff_io_warning);
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TIFFSetErrorHandler ((TIFFErrorHandler) tiff_io_error);
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io = g_new0 (TiffIO, 1);
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io->out_bytes = result;
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return TIFFClientOpen ("GTK-write", "w",
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(thandle_t) io,
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tiff_io_no_read,
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tiff_io_write,
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tiff_io_seek,
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tiff_io_close,
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tiff_io_get_file_size,
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NULL, NULL);
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}
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/* }}} */
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/* {{{ Public API */
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typedef struct _FormatData FormatData;
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struct _FormatData {
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GdkMemoryFormat format;
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guint16 bits_per_sample;
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guint16 samples_per_pixel;
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guint16 sample_format;
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guint16 alpha_samples;
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guint16 photometric;
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};
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static const FormatData format_data[] = {
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[GDK_MEMORY_B8G8R8A8_PREMULTIPLIED] = { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_A8R8G8B8_PREMULTIPLIED] = { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R8G8B8A8_PREMULTIPLIED] = { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_A8B8G8R8_PREMULTIPLIED] = { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_B8G8R8A8] = { GDK_MEMORY_R8G8B8A8, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_A8R8G8B8] = { GDK_MEMORY_R8G8B8A8, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R8G8B8A8] = { GDK_MEMORY_R8G8B8A8, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_A8B8G8R8] = { GDK_MEMORY_R8G8B8A8, 8, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R8G8B8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_B8G8R8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R8G8B8X8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_X8R8G8B8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_B8G8R8X8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_X8B8G8R8] = { GDK_MEMORY_R8G8B8, 8, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16] = { GDK_MEMORY_R16G16B16, 16, 3, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16A16_PREMULTIPLIED] = { GDK_MEMORY_R16G16B16A16_PREMULTIPLIED, 16, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16A16] = { GDK_MEMORY_R16G16B16A16, 16, 4, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16_FLOAT] = { GDK_MEMORY_R16G16B16_FLOAT, 16, 3, SAMPLEFORMAT_IEEEFP, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED] = { GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED, 16, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R16G16B16A16_FLOAT] = { GDK_MEMORY_R16G16B16A16_FLOAT, 16, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R32G32B32_FLOAT] = { GDK_MEMORY_R32G32B32_FLOAT, 32, 3, SAMPLEFORMAT_IEEEFP, 0, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED] = { GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, 32, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_R32G32B32A32_FLOAT] = { GDK_MEMORY_R32G32B32A32_FLOAT, 32, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_G8A8_PREMULTIPLIED] = { GDK_MEMORY_G8A8_PREMULTIPLIED, 8, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_G8A8] = { GDK_MEMORY_G8A8, 8, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_G8] = { GDK_MEMORY_G8, 8, 1, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_G16A16_PREMULTIPLIED] = { GDK_MEMORY_G16A16_PREMULTIPLIED, 16, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_G16A16] = { GDK_MEMORY_G16A16, 16, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_G16] = { GDK_MEMORY_G16, 16, 1, SAMPLEFORMAT_UINT, 0, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_A8] = { GDK_MEMORY_G8A8, 8, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_A16] = { GDK_MEMORY_G16A16, 16, 2, SAMPLEFORMAT_UINT, EXTRASAMPLE_UNASSALPHA, PHOTOMETRIC_MINISBLACK },
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[GDK_MEMORY_A16_FLOAT] = { GDK_MEMORY_R16G16B16A16_FLOAT, 16, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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[GDK_MEMORY_A32_FLOAT] = { GDK_MEMORY_R32G32B32A32_FLOAT, 32, 4, SAMPLEFORMAT_IEEEFP, EXTRASAMPLE_ASSOCALPHA, PHOTOMETRIC_RGB },
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};
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/* if this fails, somebody forgot to add formats above */
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G_STATIC_ASSERT (G_N_ELEMENTS (format_data) == GDK_MEMORY_N_FORMATS);
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GBytes *
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gdk_save_tiff (GdkTexture *texture)
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{
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TIFF *tif;
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int width, height;
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gsize stride;
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const guchar *line;
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const guchar *data;
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GBytes *bytes, *result = NULL;
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GdkTextureDownloader downloader;
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GdkMemoryFormat format;
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const FormatData *fdata = NULL;
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tif = tiff_open_write (&result);
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width = gdk_texture_get_width (texture);
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height = gdk_texture_get_height (texture);
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format = gdk_texture_get_format (texture);
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fdata = &format_data[format];
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if (fdata == NULL)
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fdata = &format_data[0];
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TIFFSetField (tif, TIFFTAG_SOFTWARE, "GTK");
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TIFFSetField (tif, TIFFTAG_IMAGEWIDTH, width);
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TIFFSetField (tif, TIFFTAG_IMAGELENGTH, height);
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TIFFSetField (tif, TIFFTAG_BITSPERSAMPLE, fdata->bits_per_sample);
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TIFFSetField (tif, TIFFTAG_SAMPLESPERPIXEL, fdata->samples_per_pixel);
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TIFFSetField (tif, TIFFTAG_SAMPLEFORMAT, fdata->sample_format);
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TIFFSetField (tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
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TIFFSetField (tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
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if (fdata->alpha_samples)
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TIFFSetField (tif, TIFFTAG_EXTRASAMPLES, 1, &fdata->alpha_samples);
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TIFFSetField (tif, TIFFTAG_PHOTOMETRIC, fdata->photometric);
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TIFFSetField (tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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gdk_texture_downloader_init (&downloader, texture);
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gdk_texture_downloader_set_format (&downloader, fdata->format);
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bytes = gdk_texture_downloader_download_bytes (&downloader, &stride);
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gdk_texture_downloader_finish (&downloader);
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data = g_bytes_get_data (bytes, NULL);
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line = (const guchar *)data;
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for (int y = 0; y < height; y++)
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{
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if (TIFFWriteScanline (tif, (void *)line, y, 0) == -1)
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{
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TIFFClose (tif);
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g_bytes_unref (bytes);
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return NULL;
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}
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line += stride;
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}
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TIFFFlushData (tif);
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TIFFClose (tif);
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g_assert (result);
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g_bytes_unref (bytes);
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return result;
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}
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static GdkTexture *
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load_fallback (TIFF *tif,
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GError **error)
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{
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int width, height;
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guchar *data;
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GBytes *bytes;
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GdkTexture *texture;
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TIFFGetField (tif, TIFFTAG_IMAGEWIDTH, &width);
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TIFFGetField (tif, TIFFTAG_IMAGELENGTH, &height);
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data = g_malloc (width * height * 4);
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if (!TIFFReadRGBAImageOriented (tif, width, height, (guint32 *)data, ORIENTATION_TOPLEFT, 1))
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{
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g_set_error_literal (error,
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GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_CORRUPT_IMAGE,
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_("Failed to load RGB data from TIFF file"));
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g_free (data);
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return NULL;
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}
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||
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|
||
|
bytes = g_bytes_new_take (data, width * height * 4);
|
||
|
|
||
|
texture = gdk_memory_texture_new (width, height,
|
||
|
GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
|
||
|
bytes,
|
||
|
width * 4);
|
||
|
|
||
|
g_bytes_unref (bytes);
|
||
|
|
||
|
return texture;
|
||
|
}
|
||
|
|
||
|
GdkTexture *
|
||
|
gdk_load_tiff (GBytes *input_bytes,
|
||
|
GError **error)
|
||
|
{
|
||
|
TIFF *tif;
|
||
|
guint16 samples_per_pixel;
|
||
|
guint16 bits_per_sample;
|
||
|
guint16 photometric;
|
||
|
guint16 planarconfig;
|
||
|
guint16 sample_format;
|
||
|
guint16 orientation;
|
||
|
guint32 width, height;
|
||
|
guint16 alpha_samples;
|
||
|
GdkMemoryFormat format;
|
||
|
guchar *data, *line;
|
||
|
gsize stride;
|
||
|
int bpp;
|
||
|
GBytes *bytes;
|
||
|
GdkTexture *texture;
|
||
|
G_GNUC_UNUSED gint64 before = GDK_PROFILER_CURRENT_TIME;
|
||
|
|
||
|
tif = tiff_open_read (input_bytes);
|
||
|
if (!tif)
|
||
|
{
|
||
|
g_set_error_literal (error,
|
||
|
GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_CORRUPT_IMAGE,
|
||
|
_("Could not load TIFF data"));
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
TIFFSetDirectory (tif, 0);
|
||
|
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_SAMPLESPERPIXEL, &samples_per_pixel);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_BITSPERSAMPLE, &bits_per_sample);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_SAMPLEFORMAT, &sample_format);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_PHOTOMETRIC, &photometric);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_PLANARCONFIG, &planarconfig);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_ORIENTATION, &orientation);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_IMAGEWIDTH, &width);
|
||
|
TIFFGetFieldDefaulted (tif, TIFFTAG_IMAGELENGTH, &height);
|
||
|
|
||
|
if (samples_per_pixel == 2 || samples_per_pixel == 4)
|
||
|
{
|
||
|
guint16 extra;
|
||
|
guint16 *extra_types;
|
||
|
|
||
|
if (TIFFGetField (tif, TIFFTAG_EXTRASAMPLES, &extra, &extra_types))
|
||
|
alpha_samples = extra_types[0];
|
||
|
else
|
||
|
alpha_samples = 0;
|
||
|
|
||
|
if (alpha_samples != 0 && alpha_samples != EXTRASAMPLE_ASSOCALPHA && alpha_samples != EXTRASAMPLE_UNASSALPHA)
|
||
|
{
|
||
|
texture = load_fallback (tif, error);
|
||
|
TIFFClose (tif);
|
||
|
return texture;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
alpha_samples = 0;
|
||
|
|
||
|
for (format = 0; format < G_N_ELEMENTS (format_data); format++)
|
||
|
{
|
||
|
/* not a native format */
|
||
|
if (format_data[format].format != format)
|
||
|
continue;
|
||
|
|
||
|
if (format_data[format].sample_format == sample_format &&
|
||
|
format_data[format].bits_per_sample == bits_per_sample &&
|
||
|
format_data[format].samples_per_pixel == samples_per_pixel &&
|
||
|
format_data[format].alpha_samples == alpha_samples &&
|
||
|
format_data[format].photometric == photometric)
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (format == G_N_ELEMENTS(format_data) ||
|
||
|
(photometric != PHOTOMETRIC_RGB && photometric != PHOTOMETRIC_MINISBLACK) ||
|
||
|
planarconfig != PLANARCONFIG_CONTIG ||
|
||
|
TIFFIsTiled (tif) ||
|
||
|
orientation != ORIENTATION_TOPLEFT)
|
||
|
{
|
||
|
texture = load_fallback (tif, error);
|
||
|
TIFFClose (tif);
|
||
|
return texture;
|
||
|
}
|
||
|
|
||
|
stride = width * gdk_memory_format_bytes_per_pixel (format);
|
||
|
|
||
|
g_assert (TIFFScanlineSize (tif) == stride);
|
||
|
|
||
|
data = g_try_malloc_n (height, stride);
|
||
|
if (!data)
|
||
|
{
|
||
|
g_set_error (error,
|
||
|
GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_TOO_LARGE,
|
||
|
_("Not enough memory for image size %ux%u"), width, height);
|
||
|
TIFFClose (tif);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
line = data;
|
||
|
for (int y = 0; y < height; y++)
|
||
|
{
|
||
|
if (TIFFReadScanline (tif, line, y, 0) == -1)
|
||
|
{
|
||
|
g_set_error (error,
|
||
|
GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_CORRUPT_IMAGE,
|
||
|
_("Reading data failed at row %d"), y);
|
||
|
TIFFClose (tif);
|
||
|
g_free (data);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
line += stride;
|
||
|
}
|
||
|
|
||
|
bpp = gdk_memory_format_bytes_per_pixel (format);
|
||
|
bytes = g_bytes_new_take (data, width * height * bpp);
|
||
|
|
||
|
texture = gdk_memory_texture_new (width, height,
|
||
|
format,
|
||
|
bytes, width * bpp);
|
||
|
g_bytes_unref (bytes);
|
||
|
|
||
|
TIFFClose (tif);
|
||
|
|
||
|
if (GDK_PROFILER_IS_RUNNING)
|
||
|
{
|
||
|
gint64 end = GDK_PROFILER_CURRENT_TIME;
|
||
|
if (end - before > 500000)
|
||
|
gdk_profiler_add_mark (before, end - before, "tiff load", NULL);
|
||
|
}
|
||
|
|
||
|
return texture;
|
||
|
}
|
||
|
|
||
|
/* }}} */
|
||
|
|
||
|
/* vim:set foldmethod=marker expandtab: */
|