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Diffstat (limited to 'third_party/jpeg-xl/lib/jxl/dec_external_image.h')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/dec_external_image.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/dec_external_image.h b/third_party/jpeg-xl/lib/jxl/dec_external_image.h new file mode 100644 index 0000000000..6ca7abff62 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/dec_external_image.h @@ -0,0 +1,46 @@ +// Copyright (c) the JPEG XL Project Authors. All rights reserved. +// +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +#ifndef LIB_JXL_DEC_EXTERNAL_IMAGE_H_ +#define LIB_JXL_DEC_EXTERNAL_IMAGE_H_ + +// Interleaved image for color transforms and Codec. + +#include <jxl/decode.h> +#include <jxl/types.h> +#include <stddef.h> +#include <stdint.h> + +#include "lib/jxl/base/status.h" +#include "lib/jxl/color_encoding_internal.h" +#include "lib/jxl/dec_cache.h" +#include "lib/jxl/image.h" +#include "lib/jxl/image_bundle.h" + +namespace jxl { + +// Converts ib to interleaved void* pixel buffer with the given format. +// bits_per_sample: must be 16 or 32 if float_out is true, and at most 16 +// if it is false. No bit packing is done. +// num_channels: must be 1, 2, 3 or 4 for gray, gray+alpha, RGB, RGB+alpha. +// This supports the features needed for the C API and does not perform +// color space conversion. +// TODO(lode): support rectangle crop. +// stride_out is output scanline size in bytes, must be >= +// output_xsize * output_bytes_per_pixel. +// undo_orientation is an EXIF orientation to undo. Depending on the +// orientation, the output xsize and ysize are swapped compared to input +// xsize and ysize. +Status ConvertToExternal(const jxl::ImageBundle& ib, size_t bits_per_sample, + bool float_out, size_t num_channels, + JxlEndianness endianness, size_t stride_out, + jxl::ThreadPool* thread_pool, void* out_image, + size_t out_size, const PixelCallback& out_callback, + jxl::Orientation undo_orientation, + bool unpremul_alpha = false); + +} // namespace jxl + +#endif // LIB_JXL_DEC_EXTERNAL_IMAGE_H_ |