// transparent read method to load ldr image to dt_raw_image_t with exif and so on.
dt_imageio_retval_t
dt_imageio_open_ldr(
dt_image_t *img,
const char *filename,
dt_mipmap_cache_allocator_t a)
{
dt_imageio_retval_t ret;
ret = dt_imageio_open_tiff(img, filename, a);
if(ret == DT_IMAGEIO_OK || ret == DT_IMAGEIO_CACHE_FULL)
{
img->filters = 0;
img->flags &= ~DT_IMAGE_RAW;
img->flags &= ~DT_IMAGE_HDR;
img->flags |= DT_IMAGE_LDR;
return ret;
}
// jpeg stuff here:
if(!img->exif_inited)
(void) dt_exif_read(img, filename);
const int orientation = dt_image_orientation(img);
dt_imageio_jpeg_t jpg;
if(dt_imageio_jpeg_read_header(filename, &jpg)) return DT_IMAGEIO_FILE_CORRUPTED;
img->width = (orientation & 4) ? jpg.height : jpg.width;
img->height = (orientation & 4) ? jpg.width : jpg.height;
uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4);
if(dt_imageio_jpeg_read(&jpg, tmp))
{
free(tmp);
return DT_IMAGEIO_FILE_CORRUPTED;
}
img->bpp = 4*sizeof(float);
void *buf = dt_mipmap_cache_alloc(img, DT_MIPMAP_FULL, a);
if(!buf)
{
free(tmp);
return DT_IMAGEIO_CACHE_FULL;
}
dt_imageio_flip_buffers_ui8_to_float((float *)buf, tmp, 0.0f, 255.0f, 4, jpg.width, jpg.height, jpg.width, jpg.height, 4*jpg.width, orientation);
free(tmp);
img->filters = 0;
img->flags &= ~DT_IMAGE_RAW;
img->flags &= ~DT_IMAGE_HDR;
img->flags |= DT_IMAGE_LDR;
return DT_IMAGEIO_OK;
}
dt_imageio_retval_t dt_imageio_open_jpeg(dt_image_t *img, const char *filename, dt_mipmap_cache_allocator_t a)
{
const char *ext = filename + strlen(filename);
while(*ext != '.' && ext > filename) ext--;
if(strncmp(ext, ".jpg", 4) && strncmp(ext, ".JPG", 4) && strncmp(ext, ".jpeg", 5) && strncmp(ext, ".JPEG", 5))
return DT_IMAGEIO_FILE_CORRUPTED;
if(!img->exif_inited)
(void) dt_exif_read(img, filename);
const int orientation = dt_image_orientation(img);
dt_imageio_jpeg_t jpg;
if(dt_imageio_jpeg_read_header(filename, &jpg)) return DT_IMAGEIO_FILE_CORRUPTED;
img->width = (orientation & 4) ? jpg.height : jpg.width;
img->height = (orientation & 4) ? jpg.width : jpg.height;
uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4);
if(dt_imageio_jpeg_read(&jpg, tmp))
{
free(tmp);
return DT_IMAGEIO_FILE_CORRUPTED;
}
img->bpp = 4*sizeof(float);
void *buf = dt_mipmap_cache_alloc(img, DT_MIPMAP_FULL, a);
if(!buf)
{
free(tmp);
return DT_IMAGEIO_CACHE_FULL;
}
dt_imageio_flip_buffers_ui8_to_float((float *)buf, tmp, 0.0f, 255.0f, 4, jpg.width, jpg.height, jpg.width, jpg.height, 4*jpg.width, orientation);
free(tmp);
return DT_IMAGEIO_OK;
}
static void
_init_8(
uint8_t *buf,
uint32_t *width,
uint32_t *height,
const uint32_t imgid,
const dt_mipmap_size_t size)
{
const uint32_t wd = *width, ht = *height;
char filename[DT_MAX_PATH_LEN] = {0};
gboolean from_cache = TRUE;
/* do not even try to process file if it isnt available */
dt_image_full_path(imgid, filename, DT_MAX_PATH_LEN, &from_cache);
if (strlen(filename) == 0 || !g_file_test(filename, G_FILE_TEST_EXISTS))
{
*width = *height = 0;
return;
}
const int altered = dt_image_altered(imgid);
int res = 1;
const dt_image_t *cimg = dt_image_cache_read_get(darktable.image_cache, imgid);
const int orientation = dt_image_orientation(cimg);
// the orientation for this camera is not read correctly from exiv2, so we need
// to go the full libraw path (as the thumbnail will be flipped the wrong way round)
const int incompatible = !strncmp(cimg->exif_maker, "Phase One", 9);
dt_image_cache_read_release(darktable.image_cache, cimg);
// first try exif thumbnail, that's smaller and thus faster to load:
if(!altered && !dt_conf_get_bool("never_use_embedded_thumb") &&
!dt_exif_thumbnail(filename, buf, wd, ht, orientation, width, height))
{
res = 0;
}
else if(!altered && !dt_conf_get_bool("never_use_embedded_thumb") && !incompatible)
{
// try to load the embedded thumbnail in raw
gboolean from_cache = TRUE;
memset(filename, 0, DT_MAX_PATH_LEN);
dt_image_full_path(imgid, filename, DT_MAX_PATH_LEN, &from_cache);
const char *c = filename + strlen(filename);
while(*c != '.' && c > filename) c--;
if(!strcasecmp(c, ".jpg"))
{
// try to load jpg
dt_imageio_jpeg_t jpg;
if(!dt_imageio_jpeg_read_header(filename, &jpg))
{
uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4);
if(!dt_imageio_jpeg_read(&jpg, tmp))
{
// scale to fit
dt_iop_flip_and_zoom_8(tmp, jpg.width, jpg.height, buf, wd, ht, orientation, width, height);
res = 0;
}
free(tmp);
}
}
else
{
uint8_t *tmp = 0;
int32_t thumb_width, thumb_height, orientation;
res = dt_imageio_large_thumbnail(filename, &tmp, &thumb_width, &thumb_height, &orientation);
if(!res)
{
// scale to fit
dt_iop_flip_and_zoom_8(tmp, thumb_width, thumb_height, buf, wd, ht, orientation, width, height);
free(tmp);
}
}
}
if(res)
{
// try the real thing: rawspeed + pixelpipe
dt_imageio_module_format_t format;
_dummy_data_t dat;
format.bpp = _bpp;
format.write_image = _write_image;
format.levels = _levels;
dat.head.max_width = wd;
dat.head.max_height = ht;
dat.buf = buf;
// export with flags: ignore exif (don't load from disk), don't swap byte order, don't do hq processing, and signal we want thumbnail export
res = dt_imageio_export_with_flags(imgid, "unused", &format, (dt_imageio_module_data_t *)&dat, 1, 1, 0, 1, NULL,FALSE,NULL,NULL);
if(!res)
{
// might be smaller, or have a different aspect than what we got as input.
*width = dat.head.width;
*height = dat.head.height;
}
}
// fprintf(stderr, "[mipmap init 8] export image %u finished (sizes %d %d => %d %d)!\n", imgid, wd, ht, dat.head.width, dat.head.height);
// any errors?
if(res)
{
// fprintf(stderr, "[mipmap_cache] could not process thumbnail!\n");
*width = *height = 0;
return;
}
// TODO: various speed optimizations:
// TODO: also init all smaller mips!
// TODO: use mipf, but:
// TODO: if output is cropped, don't use mipf!
}
static void
_init_8(
uint8_t *buf,
uint32_t *width,
uint32_t *height,
const uint32_t imgid,
const dt_mipmap_size_t size)
{
const uint32_t wd = *width, ht = *height;
/* do not even try to process file if it isnt available */
char filename[2048] = {0};
dt_image_full_path(imgid, filename, 2048);
if (strlen(filename) == 0 || !g_file_test(filename, G_FILE_TEST_EXISTS))
{
*width = *height = 0;
return;
}
const int altered = dt_image_altered(imgid);
int res = 1;
const dt_image_t *cimg = dt_image_cache_read_get(darktable.image_cache, imgid);
const int orientation = dt_image_orientation(cimg);
// the orientation for this camera is not read correctly from exiv2, so we need
// to go the full libraw path (as the thumbnail will be flipped the wrong way round)
const int incompatible = !strncmp(cimg->exif_maker, "Phase One", 9);
dt_image_cache_read_release(darktable.image_cache, cimg);
// try to load the embedded thumbnail first
if(!altered && !dt_conf_get_bool("never_use_embedded_thumb") && !incompatible)
{
int ret;
char filename[DT_MAX_PATH_LEN];
dt_image_full_path(imgid, filename, DT_MAX_PATH_LEN);
const char *c = filename + strlen(filename);
while(*c != '.' && c > filename) c--;
if(!strcasecmp(c, ".jpg"))
{
// try to load jpg
dt_imageio_jpeg_t jpg;
if(!dt_imageio_jpeg_read_header(filename, &jpg))
{
uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4);
if(!dt_imageio_jpeg_read(&jpg, tmp))
{
// scale to fit
dt_iop_flip_and_zoom_8(tmp, jpg.width, jpg.height, buf, wd, ht, orientation, width, height);
res = 0;
}
free(tmp);
}
}
else
{
// raw image thumbnail
libraw_data_t *raw = libraw_init(0);
libraw_processed_image_t *image = NULL;
ret = libraw_open_file(raw, filename);
if(ret) goto libraw_fail;
ret = libraw_unpack_thumb(raw);
if(ret) goto libraw_fail;
ret = libraw_adjust_sizes_info_only(raw);
if(ret) goto libraw_fail;
image = libraw_dcraw_make_mem_thumb(raw, &ret);
if(!image || ret) goto libraw_fail;
const int orientation = raw->sizes.flip;
if(image->type == LIBRAW_IMAGE_JPEG)
{
// JPEG: decode (directly rescaled to mip4)
dt_imageio_jpeg_t jpg;
if(dt_imageio_jpeg_decompress_header(image->data, image->data_size, &jpg)) goto libraw_fail;
uint8_t *tmp = (uint8_t *)malloc(sizeof(uint8_t)*jpg.width*jpg.height*4);
if(dt_imageio_jpeg_decompress(&jpg, tmp))
{
free(tmp);
goto libraw_fail;
}
// scale to fit
dt_iop_flip_and_zoom_8(tmp, jpg.width, jpg.height, buf, wd, ht, orientation, width, height);
free(tmp);
res = 0;
}
else
{
// bmp
dt_iop_flip_and_zoom_8(image->data, image->width, image->height, buf, wd, ht, orientation, width, height);
res = 0;
}
// clean up raw stuff.
libraw_recycle(raw);
libraw_close(raw);
free(image);
if(0)
{
libraw_fail:
// fprintf(stderr,"[imageio] %s: %s\n", filename, libraw_strerror(ret));
libraw_close(raw);
res = 1;
}
}
}
if(res)
{
// try the real thing: rawspeed + pixelpipe
dt_imageio_module_format_t format;
_dummy_data_t dat;
format.bpp = _bpp;
format.write_image = _write_image;
dat.head.max_width = wd;
dat.head.max_height = ht;
dat.buf = buf;
// export with flags: ignore exif (don't load from disk), don't swap byte order, don't do hq processing, and signal we want thumbnail export
res = dt_imageio_export_with_flags(imgid, "unused", &format, (dt_imageio_module_data_t *)&dat, 1, 1, 0, 1);
if(!res)
{
// might be smaller, or have a different aspect than what we got as input.
*width = dat.head.width;
*height = dat.head.height;
}
}
// fprintf(stderr, "[mipmap init 8] export image %u finished (sizes %d %d => %d %d)!\n", imgid, wd, ht, dat.head.width, dat.head.height);
// any errors?
if(res)
{
// fprintf(stderr, "[mipmap_cache] could not process thumbnail!\n");
*width = *height = 0;
return;
}
// TODO: various speed optimizations:
// TODO: also init all smaller mips!
// TODO: use mipf, but:
// TODO: if output is cropped, don't use mipf!
}
