+++ /dev/null
-/*
- * Copyright (C) 2021- The Geeqie Team
- *
- * Author: Colin Clark
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- *
- * Including parts:
- *
- * Copyright (c) the JPEG XL Project Authors.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "main.h"
-
-#include "image-load.h"
-#include "image_load_jpegxl.h"
-
-#ifdef HAVE_JPEGXL
-
-#include "jxl/decode.h"
-
-typedef struct _ImageLoaderJPEGXL ImageLoaderJPEGXL;
-struct _ImageLoaderJPEGXL {
- ImageLoaderBackendCbAreaUpdated area_updated_cb;
- ImageLoaderBackendCbSize size_cb;
- ImageLoaderBackendCbAreaPrepared area_prepared_cb;
- gpointer data;
- GdkPixbuf *pixbuf;
- guint requested_width;
- guint requested_height;
- gboolean abort;
-};
-
-static void free_buffer(guchar *pixels, gpointer data)
-{
- g_free(pixels);
-}
-
-static uint8_t *JxlMemoryToPixels(const uint8_t *next_in, size_t size, size_t *stride,
- size_t *xsize, size_t *ysize, int *has_alpha) {
- JxlDecoder *dec = JxlDecoderCreate(NULL);
- *has_alpha = 1;
- uint8_t *pixels = NULL;
- if (!dec) {
- log_printf("JxlDecoderCreate failed\n");
- return 0;
- }
- if (JXL_DEC_SUCCESS !=
- JxlDecoderSubscribeEvents(dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE)) {
- log_printf("JxlDecoderSubscribeEvents failed\n");
- JxlDecoderDestroy(dec);
- return 0;
- }
-
- JxlBasicInfo info;
- int success = 0;
- JxlPixelFormat format = {4, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0};
- JxlDecoderSetInput(dec, next_in, size);
-
- for (;;) {
- JxlDecoderStatus status = JxlDecoderProcessInput(dec);
-
- if (status == JXL_DEC_ERROR) {
- log_printf("Decoder error\n");
- break;
- } else if (status == JXL_DEC_NEED_MORE_INPUT) {
- log_printf("Error, already provided all input\n");
- break;
- } else if (status == JXL_DEC_BASIC_INFO) {
- if (JXL_DEC_SUCCESS != JxlDecoderGetBasicInfo(dec, &info)) {
- log_printf("JxlDecoderGetBasicInfo failed\n");
- break;
- }
- *xsize = info.xsize;
- *ysize = info.ysize;
- *stride = info.xsize * 4;
- } else if (status == JXL_DEC_NEED_IMAGE_OUT_BUFFER) {
- size_t buffer_size;
- if (JXL_DEC_SUCCESS !=
- JxlDecoderImageOutBufferSize(dec, &format, &buffer_size)) {
- log_printf("JxlDecoderImageOutBufferSize failed\n");
- break;
- }
- if (buffer_size != *stride * *ysize) {
- log_printf("Invalid out buffer size %zu %zu\n", buffer_size,
- *stride * *ysize);
- break;
- }
- size_t pixels_buffer_size = buffer_size * sizeof(uint8_t);
- pixels = malloc(pixels_buffer_size);
- void *pixels_buffer = (void *)pixels;
- if (JXL_DEC_SUCCESS != JxlDecoderSetImageOutBuffer(dec, &format,
- pixels_buffer,
- pixels_buffer_size)) {
- log_printf("JxlDecoderSetImageOutBuffer failed\n");
- break;
- }
- } else if (status == JXL_DEC_FULL_IMAGE) {
- // This means the decoder has decoded all pixels into the buffer.
- success = 1;
- break;
- } else if (status == JXL_DEC_SUCCESS) {
- log_printf("Decoding finished before receiving pixel data\n");
- break;
- } else {
- log_printf("Unexpected decoder status: %d\n", status);
- break;
- }
- }
- if (success){
- return pixels;
- } else {
- free(pixels);
- return NULL;
- }
-}
-
-static gboolean image_loader_jpegxl_load(gpointer loader, const guchar *buf, gsize count, GError **error)
-{
- ImageLoaderJPEGXL *ld = (ImageLoaderJPEGXL *) loader;
- gboolean ret = FALSE;
- size_t stride;
- size_t xsize;
- size_t ysize;
- int has_alpha;
- uint8_t *decoded = NULL;
-
- decoded = JxlMemoryToPixels(buf, count, &stride, &xsize, &ysize, &has_alpha);
-
- if (decoded)
- {
- ld->pixbuf = gdk_pixbuf_new_from_data(decoded, GDK_COLORSPACE_RGB, has_alpha, 8, xsize, ysize, stride, free_buffer, NULL);
-
- ld->area_updated_cb(loader, 0, 0, xsize, ysize, ld->data);
-
- ret = TRUE;
- }
-
- return ret;
-}
-
-static gpointer image_loader_jpegxl_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
-{
- ImageLoaderJPEGXL *loader = g_new0(ImageLoaderJPEGXL, 1);
- loader->area_updated_cb = area_updated_cb;
- loader->size_cb = size_cb;
- loader->area_prepared_cb = area_prepared_cb;
- loader->data = data;
- return (gpointer) loader;
-}
-
-static void image_loader_jpegxl_set_size(gpointer loader, int width, int height)
-{
- ImageLoaderJPEGXL *ld = (ImageLoaderJPEGXL *) loader;
- ld->requested_width = width;
- ld->requested_height = height;
-}
-
-static GdkPixbuf* image_loader_jpegxl_get_pixbuf(gpointer loader)
-{
- ImageLoaderJPEGXL *ld = (ImageLoaderJPEGXL *) loader;
- return ld->pixbuf;
-}
-
-static gchar* image_loader_jpegxl_get_format_name(gpointer loader)
-{
- return g_strdup("jxl");
-}
-
-static gchar** image_loader_jpegxl_get_format_mime_types(gpointer loader)
-{
- static gchar *mime[] = {"image/jxl", NULL};
- return g_strdupv(mime);
-}
-
-static gboolean image_loader_jpegxl_close(gpointer loader, GError **error)
-{
- return TRUE;
-}
-
-static void image_loader_jpegxl_abort(gpointer loader)
-{
- ImageLoaderJPEGXL *ld = (ImageLoaderJPEGXL *) loader;
- ld->abort = TRUE;
-}
-
-static void image_loader_jpegxl_free(gpointer loader)
-{
- ImageLoaderJPEGXL *ld = (ImageLoaderJPEGXL *) loader;
- if (ld->pixbuf) g_object_unref(ld->pixbuf);
- g_free(ld);
-}
-
-void image_loader_backend_set_jpegxl(ImageLoaderBackend *funcs)
-{
- funcs->loader_new = image_loader_jpegxl_new;
- funcs->set_size = image_loader_jpegxl_set_size;
- funcs->load = image_loader_jpegxl_load;
- funcs->write = NULL;
- funcs->get_pixbuf = image_loader_jpegxl_get_pixbuf;
- funcs->close = image_loader_jpegxl_close;
- funcs->abort = image_loader_jpegxl_abort;
- funcs->free = image_loader_jpegxl_free;
- funcs->get_format_name = image_loader_jpegxl_get_format_name;
- funcs->get_format_mime_types = image_loader_jpegxl_get_format_mime_types;
-}
-
-#endif
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff