[gtk/image-loading: 9/18] Add code to load and save tiff files




commit a09ca9e950a3599f67999e6610475bfc4fbfb8d9
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Sep 10 12:47:14 2021 -0400

    Add code to load and save tiff files
    
    Add support for the tiff format, which is flexible
    enough to handle all our memory texture formats
    without loss.
    
    As a consequence, we are now linking against libtiff.

 gdk/gdktiff.c            | 641 +++++++++++++++++++++++++++++++++++++++++++++++
 gdk/gdktiff.h            |  56 +++++
 gdk/meson.build          |   3 +-
 meson.build              |   3 +
 subprojects/libtiff.wrap |  12 +
 5 files changed, 714 insertions(+), 1 deletion(-)
---
diff --git a/gdk/gdktiff.c b/gdk/gdktiff.c
new file mode 100644
index 0000000000..8260faca8e
--- /dev/null
+++ b/gdk/gdktiff.c
@@ -0,0 +1,641 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gdktiff.h"
+
+#include "gdktexture.h"
+#include "gdkmemorytextureprivate.h"
+#include <tiffio.h>
+
+/* {{{ IO handling */
+
+typedef struct
+{
+  GObject *stream;
+  GInputStream *input;
+  GOutputStream *output;
+
+  gchar *buffer;
+  gsize allocated;
+  gsize used;
+  gsize position;
+} TiffIO;
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
+
+static void
+tiff_io_warning (const char *module,
+                 const char *fmt,
+                 va_list     ap)
+{
+  g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
+}
+
+static void
+tiff_io_error (const char *module,
+               const char *fmt,
+               va_list     ap)
+{
+  g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
+}
+
+#pragma GCC diagnostic pop
+
+static tsize_t
+tiff_io_read (thandle_t handle,
+              tdata_t   buffer,
+              tsize_t   size)
+{
+  TiffIO *io = (TiffIO *) handle;
+  GError *error = NULL;
+  gssize read  = -1;
+  gsize bytes_read = 0;
+
+  if (! g_input_stream_read_all (io->input,
+                                 (void *) buffer, (gsize) size,
+                                 &bytes_read,
+                                 NULL, &error))
+    {
+      g_printerr ("%s", error->message);
+      g_clear_error (&error);
+    }
+
+  read = bytes_read;
+
+  return (tsize_t) read;
+}
+
+static tsize_t
+tiff_io_write (thandle_t handle,
+               tdata_t   buffer,
+               tsize_t   size)
+{
+  TiffIO *io = (TiffIO *) handle;
+  GError *error = NULL;
+  gssize written = -1;
+  gsize bytes_written = 0;
+
+  if (! g_output_stream_write_all (io->output,
+                                   (void *) buffer, (gsize) size,
+                                   &bytes_written,
+                                   NULL, &error))
+    {
+      g_printerr ("%s", error->message);
+      g_clear_error (&error);
+    }
+
+  written = bytes_written;
+
+  return (tsize_t) written;
+}
+
+static GSeekType
+lseek_to_seek_type (int whence)
+{
+  switch (whence)
+    {
+    default:
+    case SEEK_SET:
+      return G_SEEK_SET;
+    case SEEK_CUR:
+      return G_SEEK_CUR;
+    case SEEK_END:
+      return G_SEEK_END;
+    }
+}
+
+static toff_t
+tiff_io_seek (thandle_t handle,
+              toff_t    offset,
+              int       whence)
+{
+  TiffIO *io = (TiffIO *) handle;
+  GError *error = NULL;
+  gboolean sought = FALSE;
+  goffset position = -1;
+
+  sought = g_seekable_seek (G_SEEKABLE (io->stream),
+                            (goffset) offset, lseek_to_seek_type (whence),
+                            NULL, &error);
+  if (sought)
+    {
+      position = g_seekable_tell (G_SEEKABLE (io->stream));
+    }
+  else
+    {
+      g_printerr ("%s", error->message);
+      g_clear_error (&error);
+    }
+
+  return (toff_t) position;
+}
+
+static int
+tiff_io_close (thandle_t handle)
+{
+  TiffIO *io = (TiffIO *) handle;
+  GError *error = NULL;
+  gboolean closed = FALSE;
+
+  if (io->input)
+    closed = g_input_stream_close (io->input, NULL, &error);
+  else if (io->output)
+    closed = g_output_stream_close (io->output, NULL, &error);
+
+  if (!closed)
+    {
+      g_printerr ("%s", error->message);
+      g_clear_error (&error);
+    }
+
+  g_clear_object (&io->stream);
+  io->input = NULL;
+  io->output = NULL;
+
+  g_clear_pointer (&io->buffer, g_free);
+
+  io->allocated = 0;
+  io->used = 0;
+  io->position  = 0;
+
+  g_free (io);
+
+  return closed ? 0 : -1;
+}
+
+static goffset
+input_stream_query_size (GInputStream *stream)
+{
+  goffset size = 0;
+
+  while (G_IS_FILTER_INPUT_STREAM (stream))
+    stream = g_filter_input_stream_get_base_stream (G_FILTER_INPUT_STREAM (stream));
+
+  if (G_IS_FILE_INPUT_STREAM (stream))
+    {
+      GFileInfo *info;
+
+      info = g_file_input_stream_query_info (G_FILE_INPUT_STREAM (stream),
+                                             G_FILE_ATTRIBUTE_STANDARD_SIZE,
+                                             NULL,
+                                             NULL);
+      if (info)
+        {
+          size = g_file_info_get_size (info);
+          g_object_unref (info);
+        }
+    }
+
+  return size;
+}
+
+static goffset
+output_stream_query_size (GOutputStream *stream)
+{
+  goffset size = 0;
+
+  while (G_IS_FILTER_OUTPUT_STREAM (stream))
+    stream = g_filter_output_stream_get_base_stream (G_FILTER_OUTPUT_STREAM (stream));
+
+  if (G_IS_FILE_OUTPUT_STREAM (stream))
+    {
+      GFileInfo *info;
+
+      info = g_file_output_stream_query_info (G_FILE_OUTPUT_STREAM (stream),
+                                              G_FILE_ATTRIBUTE_STANDARD_SIZE,
+                                              NULL,
+                                              NULL);
+      if (info)
+        {
+          size = g_file_info_get_size (info);
+          g_object_unref (info);
+        }
+    }
+
+  return size;
+}
+
+static toff_t
+tiff_io_get_file_size (thandle_t handle)
+{
+  TiffIO *io = (TiffIO *) handle;
+
+  if (io->input)
+    return (toff_t) input_stream_query_size (io->input);
+  else if (io->output)
+    return (toff_t) output_stream_query_size (io->output);
+
+  return (toff_t) 0;
+}
+
+static TIFF *
+tiff_open (gpointer      stream,
+           const gchar  *mode,
+           GError      **error)
+{
+  TIFFSetWarningHandler ((TIFFErrorHandler) tiff_io_warning);
+  TIFFSetErrorHandler ((TIFFErrorHandler) tiff_io_error);
+  TiffIO *io;
+
+  io = g_new0 (TiffIO, 1);
+
+  if (strcmp (mode, "r") == 0)
+    {
+      io->input = G_INPUT_STREAM (stream);
+      io->stream = g_object_ref (G_OBJECT (stream));
+    }
+  else if (strcmp (mode, "w") == 0)
+    {
+      io->output = G_OUTPUT_STREAM (stream);
+      io->stream = g_object_ref (G_OBJECT (stream));
+    }
+  else
+    {
+      g_assert_not_reached ();
+    }
+
+  return TIFFClientOpen ("GTK", mode,
+                         (thandle_t) io,
+                         tiff_io_read,
+                         tiff_io_write,
+                         tiff_io_seek,
+                         tiff_io_close,
+                         tiff_io_get_file_size,
+                         NULL, NULL);
+}
+
+/* }}} */
+/* {{{ Public API */
+
+static struct {
+  GdkMemoryFormat format;
+  guint16 bits_per_sample;
+  guint16 samples_per_pixel;
+  guint16 sample_format;
+} format_data[] = {
+  { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,      8, 4, SAMPLEFORMAT_UINT   },
+  { GDK_MEMORY_R8G8B8,                      8, 3, SAMPLEFORMAT_UINT   },
+};
+
+gboolean
+gdk_save_tiff (GOutputStream    *stream,
+               const guchar     *data,
+               int               width,
+               int               height,
+               int               stride,
+               GdkMemoryFormat   format,
+               GError          **error)
+{
+  TIFF *tif;
+  guint16 bits_per_sample = 0;
+  guint16 samples_per_pixel = 0;
+  guint16 sample_format = 0;
+  const guchar *line;
+  guchar *new_data = NULL;
+
+  tif = tiff_open (stream, "w", error);
+  if (!tif)
+    return FALSE;
+
+  if (format == GDK_MEMORY_B8G8R8A8_PREMULTIPLIED ||
+      format == GDK_MEMORY_A8R8G8B8_PREMULTIPLIED)
+    {
+      new_data = g_malloc (width * height * 4);
+      gdk_memory_convert (new_data, width * 4, GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
+                          data, stride, format,
+                          width, height);
+      stride = width * 4;
+      format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+      data = new_data;
+    }
+
+  for (int i = 0; i < G_N_ELEMENTS (format_data); i++)
+    {
+      if (format == format_data[i].format)
+        {
+          bits_per_sample = format_data[i].bits_per_sample;
+          samples_per_pixel = format_data[i].samples_per_pixel;
+          sample_format = format_data[i].sample_format;
+          break;
+        }
+    }
+
+  g_assert (bits_per_sample != 0);
+
+  TIFFSetField (tif, TIFFTAG_SOFTWARE, "GTK");
+  TIFFSetField (tif, TIFFTAG_IMAGEWIDTH, width);
+  TIFFSetField (tif, TIFFTAG_IMAGELENGTH, height);
+  TIFFSetField (tif, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
+  TIFFSetField (tif, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
+  TIFFSetField (tif, TIFFTAG_SAMPLEFORMAT, sample_format);
+  TIFFSetField (tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+  TIFFSetField (tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
+  // TODO: save gamma / colorspace
+
+  if (samples_per_pixel > 3)
+    {
+      guint16 extra_samples[] = { EXTRASAMPLE_ASSOCALPHA };
+      TIFFSetField (tif, TIFFTAG_EXTRASAMPLES, 1, extra_samples);
+    }
+
+  TIFFSetField (tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+  TIFFSetField (tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+
+  line = (const guchar *)data;
+  for (int y = 0; y < height; y++)
+    {
+      if (TIFFWriteScanline (tif, (void *)line, y, 0) == -1)
+        {
+          g_set_error (error,
+                       G_IO_ERROR, G_IO_ERROR_FAILED,
+                       "Writing data failed at row %d", y);
+          TIFFClose (tif);
+          g_free (new_data);
+          return FALSE;
+        }
+
+      line += stride;
+    }
+
+  TIFFFlushData (tif);
+  TIFFClose (tif);
+
+  g_free (new_data);
+
+  return TRUE;
+}
+
+static GdkTexture *
+load_fallback (TIFF    *tif,
+               GError **error)
+{
+  int width, height;
+  guchar *data;
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  TIFFGetField (tif, TIFFTAG_IMAGEWIDTH, &width);
+  TIFFGetField (tif, TIFFTAG_IMAGELENGTH, &height);
+
+  data = g_malloc (width * height * 4);
+
+  if (!TIFFReadRGBAImageOriented (tif, width, height, (uint32 *)data, ORIENTATION_TOPLEFT, 1))
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR, G_IO_ERROR_FAILED,
+                           "Failed to load RGB data from TIFF file");
+      g_free (data);
+      return NULL;
+    }
+
+  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;
+}
+
+/* This isn't meant to be a very versatile tiff loader.
+ * It just aims to load the subset that we're saving
+ * ourselves, above.
+ */
+GdkTexture *
+gdk_load_tiff (GInputStream  *stream,
+               GError       **error)
+{
+  TIFF *tif;
+  guint16 samples_per_pixel;
+  guint16 bits_per_sample;
+  guint16 photometric;
+  guint16 planarconfig;
+  guint16 sample_format;
+  guint16 orientation;
+  guint32 width, height;
+  GdkMemoryFormat format;
+  guchar *data, *line;
+  gsize stride;
+  int bpp;
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  tif = tiff_open (stream, "r", error);
+  if (!tif)
+    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 == 4)
+    {
+      guint16 extra;
+      guint16 *extra_types;
+
+      if (!TIFFGetField (tif, TIFFTAG_EXTRASAMPLES, &extra, &extra_types))
+        extra = 0;
+
+      if (extra == 0 || extra_types[0] != EXTRASAMPLE_ASSOCALPHA)
+        {
+          texture = load_fallback (tif, error);
+          TIFFClose (tif);
+          return texture;
+        }
+    }
+
+  format = 0;
+
+  for (int i = 0; i < G_N_ELEMENTS (format_data); i++)
+    {
+      if (format_data[i].sample_format == sample_format &&
+          format_data[i].bits_per_sample == bits_per_sample &&
+          format_data[i].samples_per_pixel == samples_per_pixel)
+        {
+          format = format_data[i].format;
+          break;
+        }
+    }
+
+  if (format == 0 ||
+      photometric != PHOTOMETRIC_RGB ||
+      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_new (guchar, height * stride);
+
+  line = data;
+  for (int y = 0; y < height; y++)
+    {
+      if (TIFFReadScanline (tif, line, y, 0) == -1)
+        {
+          g_set_error (error,
+                       G_IO_ERROR, G_IO_ERROR_FAILED,
+                       "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);
+
+  return texture;
+}
+
+/* }}} */
+/* {{{ Async code */
+
+static void
+load_tiff_in_thread (GTask        *task,
+                     gpointer      source_object,
+                     gpointer      task_data,
+                     GCancellable *cancellable)
+{
+  GInputStream *stream = source_object;
+  GdkTexture *texture;
+  GError *error = NULL;
+
+  texture = gdk_load_tiff (stream, &error);
+
+  if (texture)
+    g_task_return_pointer (task, texture, g_object_unref);
+  else
+    g_task_return_error (task, error);
+}
+
+void
+gdk_load_tiff_async (GInputStream         *stream,
+                     GCancellable         *cancellable,
+                     GAsyncReadyCallback   callback,
+                     gpointer              user_data)
+{
+  GTask *task;
+
+  task = g_task_new (stream, cancellable, callback, user_data);
+  g_task_run_in_thread (task, load_tiff_in_thread);
+  g_object_unref (task);
+}
+
+GdkTexture *
+gdk_load_tiff_finish (GAsyncResult  *result,
+                      GError       **error)
+{
+  return g_task_propagate_pointer (G_TASK (result), error);
+}
+
+typedef struct {
+  const guchar *data;
+  int width;
+  int height;
+  int stride;
+  GdkMemoryFormat format;
+} SaveTiffData;
+
+static void
+save_tiff_in_thread (GTask        *task,
+                     gpointer      source_object,
+                     gpointer      task_data,
+                     GCancellable *cancellable)
+{
+  GOutputStream *stream = source_object;
+  SaveTiffData *data = task_data;
+  GError *error = NULL;
+  gboolean result;
+
+  result = gdk_save_tiff (stream,
+                          data->data,
+                          data->width,
+                          data->height,
+                          data->stride,
+                          data->format,
+                          &error);
+
+  if (result)
+    g_task_return_boolean (task, result);
+  else
+    g_task_return_error (task, error);
+}
+
+void
+gdk_save_tiff_async (GOutputStream          *stream,
+                     const guchar           *data,
+                     int                     width,
+                     int                     height,
+                     int                     stride,
+                     GdkMemoryFormat         format,
+                     GCancellable           *cancellable,
+                     GAsyncReadyCallback     callback,
+                     gpointer                user_data)
+{
+  GTask *task;
+  SaveTiffData *save_data;
+
+  save_data = g_new0 (SaveTiffData, 1);
+  save_data->data = data;
+  save_data->width = width;
+  save_data->height = height;
+  save_data->stride = stride;
+  save_data->format = format;
+
+  task = g_task_new (stream, cancellable, callback, user_data);
+  g_task_set_task_data (task, save_data, g_free);
+  g_task_run_in_thread (task, save_tiff_in_thread);
+  g_object_unref (task);
+}
+
+gboolean
+gdk_save_tiff_finish (GAsyncResult  *result,
+                      GError       **error)
+{
+  return g_task_propagate_boolean (G_TASK (result), error);
+}
+
+/* }}} */
+
+/* vim:set foldmethod=marker expandtab: */
diff --git a/gdk/gdktiff.h b/gdk/gdktiff.h
new file mode 100644
index 0000000000..a4c4694e79
--- /dev/null
+++ b/gdk/gdktiff.h
@@ -0,0 +1,56 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GDK_TIFF_H__
+#define __GDK_TIFF_H__
+
+#include "gdkmemorytexture.h"
+#include <gio/gio.h>
+
+GdkTexture *gdk_load_tiff         (GInputStream     *stream,
+                                   GError          **error);
+
+void        gdk_load_tiff_async   (GInputStream           *stream,
+                                   GCancellable           *cancellable,
+                                   GAsyncReadyCallback     callback,
+                                   gpointer                user_data);
+
+GdkTexture *gdk_load_tiff_finish  (GAsyncResult           *result,
+                                   GError                **error);
+
+gboolean    gdk_save_tiff         (GOutputStream    *stream,
+                                   const guchar     *data,
+                                   int               width,
+                                   int               height,
+                                   int               stride,
+                                   GdkMemoryFormat   format,
+                                   GError          **error);
+
+void        gdk_save_tiff_async  (GOutputStream          *stream,
+                                  const guchar           *data,
+                                  int                     width,
+                                  int                     height,
+                                  int                     stride,
+                                  GdkMemoryFormat         format,
+                                  GCancellable           *cancellable,
+                                  GAsyncReadyCallback     callback,
+                                  gpointer                user_data);
+
+gboolean    gdk_save_tiff_finish (GAsyncResult           *result,
+                                  GError                **error);
+
+#endif
diff --git a/gdk/meson.build b/gdk/meson.build
index 454d231fec..dad0c82286 100644
--- a/gdk/meson.build
+++ b/gdk/meson.build
@@ -52,6 +52,7 @@ gdk_public_sources = files([
   'gdktoplevel.c',
   'gdkdragsurface.c',
   'gdkpng.c',
+  'gdktiff.c',
 ])
 
 gdk_public_headers = files([
@@ -257,7 +258,7 @@ endif
 
 libgdk = static_library('gdk',
   sources: [gdk_sources, gdk_backends_gen_headers, gdkconfig],
-  dependencies: gdk_deps + [libgtk_css_dep, png_dep],
+  dependencies: gdk_deps + [libgtk_css_dep, png_dep, tiff_dep],
   link_with: [libgtk_css],
   include_directories: [confinc, gdkx11_inc, wlinc],
   c_args: libgdk_c_args + common_cflags,
diff --git a/meson.build b/meson.build
index bbe038b94c..7bc58ae2ec 100644
--- a/meson.build
+++ b/meson.build
@@ -393,6 +393,9 @@ pixbuf_dep     = dependency('gdk-pixbuf-2.0', version: gdk_pixbuf_req,
 png_dep        = dependency('libpng',
                             fallback: ['libpng', 'png_dep'],
                             required: true)
+tiff_dep       = dependency('libtiff-4',
+                            fallback: ['libtiff', 'libtiff4_dep'],
+                            required: true)
 
 epoxy_dep      = dependency('epoxy', version: epoxy_req,
                             fallback: ['libepoxy', 'libepoxy_dep'])
diff --git a/subprojects/libtiff.wrap b/subprojects/libtiff.wrap
new file mode 100644
index 0000000000..4c574fbbce
--- /dev/null
+++ b/subprojects/libtiff.wrap
@@ -0,0 +1,12 @@
+[wrap-file]
+directory = tiff-4.1.0
+source_url = http://download.osgeo.org/libtiff/tiff-4.1.0.zip
+source_filename = tiff-4.1.0.zip
+source_hash = 6f3dbed9d2ecfed33c7192b5c01884078970657fa21b4ad28e3cdf3438eb2419
+patch_filename = libtiff_4.1.0-3_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/libtiff_4.1.0-3/get_patch
+patch_hash = 51b0b1e3d8514407156e7e122ad355b11bc0c4e38381bb667c05184ddce28bb2
+
+[provide]
+libtiff-4 = libtiff4_dep
+


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