2 * Copyright (C) 2021- The Geeqie Team
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 * Copyright (c) the JPEG XL Project Authors.
24 * All rights reserved.
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions are met:
29 * 1. Redistributions of source code must retain the above copyright notice, this
30 * list of conditions and the following disclaimer.
32 * 2. Redistributions in binary form must reproduce the above copyright notice,
33 * this list of conditions and the following disclaimer in the documentation
34 * and/or other materials provided with the distribution.
36 * 3. Neither the name of the copyright holder nor the names of its
37 * contributors may be used to endorse or promote products derived from
38 * this software without specific prior written permission.
40 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
41 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
43 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
46 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
47 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
49 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 #include "image-load-jpegxl.h"
63 #include <gdk-pixbuf/gdk-pixbuf.h>
64 #include <glib-object.h>
66 #include <jxl/codestream_header.h>
67 #include <jxl/decode.h> //TODO Use decode_cxx.h?
68 #include <jxl/types.h>
71 #include "image-load.h"
76 struct ImageLoaderJPEGXL : public ImageLoaderBackend
79 ~ImageLoaderJPEGXL() override;
81 void init(AreaUpdatedCb area_updated_cb, SizePreparedCb size_prepared_cb, AreaPreparedCb area_prepared_cb, gpointer data) override;
82 gboolean write(const guchar *buf, gsize &chunk_size, gsize count, GError **error) override;
83 GdkPixbuf *get_pixbuf() override;
84 gchar *get_format_name() override;
85 gchar **get_format_mime_types() override;
88 AreaUpdatedCb area_updated_cb;
94 void free_buffer(guchar *pixels, gpointer)
99 uint8_t *JxlMemoryToPixels(const uint8_t *next_in, size_t size, size_t &xsize, size_t &ysize, size_t &stride)
101 std::unique_ptr<JxlDecoder, decltype(&JxlDecoderDestroy)> dec{JxlDecoderCreate(nullptr), JxlDecoderDestroy};
104 log_printf("JxlDecoderCreate failed\n");
107 if (JXL_DEC_SUCCESS != JxlDecoderSubscribeEvents(dec.get(), JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE))
109 log_printf("JxlDecoderSubscribeEvents failed\n");
113 /* Avoid compiler warning - used uninitialized */
114 /* This file will be replaced by libjxl at some time */
118 std::unique_ptr<uint8_t, decltype(&free)> pixels{nullptr, free};
120 JxlPixelFormat format = {4, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0};
121 JxlDecoderSetInput(dec.get(), next_in, size);
125 JxlDecoderStatus status = JxlDecoderProcessInput(dec.get());
130 log_printf("Decoder error\n");
132 case JXL_DEC_NEED_MORE_INPUT:
133 log_printf("Error, already provided all input\n");
135 case JXL_DEC_BASIC_INFO:
136 if (JXL_DEC_SUCCESS != JxlDecoderGetBasicInfo(dec.get(), &info))
138 log_printf("JxlDecoderGetBasicInfo failed\n");
143 stride = info.xsize * 4;
145 case JXL_DEC_NEED_IMAGE_OUT_BUFFER:
148 if (JXL_DEC_SUCCESS != JxlDecoderImageOutBufferSize(dec.get(), &format, &buffer_size))
150 log_printf("JxlDecoderImageOutBufferSize failed\n");
153 if (buffer_size != stride * ysize)
155 log_printf("Invalid out buffer size %zu %zu\n", buffer_size, stride * ysize);
158 size_t pixels_buffer_size = buffer_size * sizeof(uint8_t);
159 pixels.reset(static_cast<uint8_t *>(malloc(pixels_buffer_size)));
160 if (JXL_DEC_SUCCESS != JxlDecoderSetImageOutBuffer(dec.get(), &format, pixels.get(), pixels_buffer_size))
162 log_printf("JxlDecoderSetImageOutBuffer failed\n");
167 case JXL_DEC_FULL_IMAGE:
168 // This means the decoder has decoded all pixels into the buffer.
169 return pixels.release();
170 case JXL_DEC_SUCCESS:
171 log_printf("Decoding finished before receiving pixel data\n");
174 log_printf("Unexpected decoder status: %d\n", status);
182 gboolean ImageLoaderJPEGXL::write(const guchar *buf, gsize &chunk_size, gsize count, GError **)
184 gboolean ret = FALSE;
188 uint8_t *pixels = nullptr;
190 pixels = JxlMemoryToPixels(buf, count, xsize, ysize, stride);
194 pixbuf = gdk_pixbuf_new_from_data(pixels, GDK_COLORSPACE_RGB, TRUE, 8, xsize, ysize, stride, free_buffer, nullptr);
196 area_updated_cb(nullptr, 0, 0, xsize, ysize, data);
205 void ImageLoaderJPEGXL::init(AreaUpdatedCb area_updated_cb, SizePreparedCb, AreaPreparedCb, gpointer data)
207 this->area_updated_cb = area_updated_cb;
211 GdkPixbuf *ImageLoaderJPEGXL::get_pixbuf()
216 gchar *ImageLoaderJPEGXL::get_format_name()
218 return g_strdup("jxl");
221 gchar **ImageLoaderJPEGXL::get_format_mime_types()
223 static const gchar *mime[] = {"image/jxl", nullptr};
224 return g_strdupv(const_cast<gchar **>(mime));
227 ImageLoaderJPEGXL::~ImageLoaderJPEGXL()
229 if (pixbuf) g_object_unref(pixbuf);
234 std::unique_ptr<ImageLoaderBackend> get_image_loader_backend_jpegxl()
236 return std::make_unique<ImageLoaderJPEGXL>();
240 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */