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Diffstat (limited to 'libs/ultrahdr/jpegr.cpp')
| -rw-r--r-- | libs/ultrahdr/jpegr.cpp | 1486 |
1 files changed, 1486 insertions, 0 deletions
diff --git a/libs/ultrahdr/jpegr.cpp b/libs/ultrahdr/jpegr.cpp new file mode 100644 index 0000000000..9c57f34c2a --- /dev/null +++ b/libs/ultrahdr/jpegr.cpp @@ -0,0 +1,1486 @@ +/* + * Copyright 2022 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <ultrahdr/jpegr.h> +#include <ultrahdr/jpegencoderhelper.h> +#include <ultrahdr/jpegdecoderhelper.h> +#include <ultrahdr/gainmapmath.h> +#include <ultrahdr/jpegrutils.h> +#include <ultrahdr/multipictureformat.h> +#include <ultrahdr/icc.h> + +#include <image_io/jpeg/jpeg_marker.h> +#include <image_io/jpeg/jpeg_info.h> +#include <image_io/jpeg/jpeg_scanner.h> +#include <image_io/jpeg/jpeg_info_builder.h> +#include <image_io/base/data_segment_data_source.h> +#include <utils/Log.h> + +#include <map> +#include <memory> +#include <sstream> +#include <string> +#include <cmath> +#include <condition_variable> +#include <deque> +#include <mutex> +#include <thread> +#include <unistd.h> + +using namespace std; +using namespace photos_editing_formats::image_io; + +namespace android::ultrahdr { + +#define USE_SRGB_INVOETF_LUT 1 +#define USE_HLG_OETF_LUT 1 +#define USE_PQ_OETF_LUT 1 +#define USE_HLG_INVOETF_LUT 1 +#define USE_PQ_INVOETF_LUT 1 +#define USE_APPLY_GAIN_LUT 1 + +#define JPEGR_CHECK(x) \ + { \ + status_t status = (x); \ + if ((status) != NO_ERROR) { \ + return status; \ + } \ + } + +// The current JPEGR version that we encode to +static const char* const kJpegrVersion = "1.0"; + +// Map is quarter res / sixteenth size +static const size_t kMapDimensionScaleFactor = 4; + +// Gain Map width is (image_width / kMapDimensionScaleFactor). If we were to +// compress 420 GainMap in jpeg, then we need at least 2 samples. For Grayscale +// 1 sample is sufficient. We are using 2 here anyways +static const int kMinWidth = 2 * kMapDimensionScaleFactor; +static const int kMinHeight = 2 * kMapDimensionScaleFactor; + +// JPEG block size. +// JPEG encoding / decoding will require block based DCT transform 16 x 16 for luma, +// and 8 x 8 for chroma. +// Width must be 16 dividable for luma, and 8 dividable for chroma. +// If this criteria is not facilitated, we will pad zeros based to each line on the +// required block size. +static const size_t kJpegBlock = JpegEncoderHelper::kCompressBatchSize; +// JPEG compress quality (0 ~ 100) for gain map +static const int kMapCompressQuality = 85; + +#define CONFIG_MULTITHREAD 1 +int GetCPUCoreCount() { + int cpuCoreCount = 1; +#if CONFIG_MULTITHREAD +#if defined(_SC_NPROCESSORS_ONLN) + cpuCoreCount = sysconf(_SC_NPROCESSORS_ONLN); +#else + // _SC_NPROC_ONLN must be defined... + cpuCoreCount = sysconf(_SC_NPROC_ONLN); +#endif +#endif + return cpuCoreCount; +} + +status_t JpegR::areInputArgumentsValid(jr_uncompressed_ptr uncompressed_p010_image, + jr_uncompressed_ptr uncompressed_yuv_420_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest) { + if (uncompressed_p010_image == nullptr || uncompressed_p010_image->data == nullptr) { + ALOGE("received nullptr for uncompressed p010 image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (uncompressed_p010_image->width % 2 != 0 + || uncompressed_p010_image->height % 2 != 0) { + ALOGE("Image dimensions cannot be odd, image dimensions %dx%d", + uncompressed_p010_image->width, uncompressed_p010_image->height); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_p010_image->width < kMinWidth + || uncompressed_p010_image->height < kMinHeight) { + ALOGE("Image dimensions cannot be less than %dx%d, image dimensions %dx%d", + kMinWidth, kMinHeight, uncompressed_p010_image->width, uncompressed_p010_image->height); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_p010_image->width > kMaxWidth + || uncompressed_p010_image->height > kMaxHeight) { + ALOGE("Image dimensions cannot be larger than %dx%d, image dimensions %dx%d", + kMaxWidth, kMaxHeight, uncompressed_p010_image->width, uncompressed_p010_image->height); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_p010_image->colorGamut <= ULTRAHDR_COLORGAMUT_UNSPECIFIED + || uncompressed_p010_image->colorGamut > ULTRAHDR_COLORGAMUT_MAX) { + ALOGE("Unrecognized p010 color gamut %d", uncompressed_p010_image->colorGamut); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_p010_image->luma_stride != 0 + && uncompressed_p010_image->luma_stride < uncompressed_p010_image->width) { + ALOGE("Luma stride can not be smaller than width, stride=%d, width=%d", + uncompressed_p010_image->luma_stride, uncompressed_p010_image->width); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_p010_image->chroma_data != nullptr + && uncompressed_p010_image->chroma_stride < uncompressed_p010_image->width) { + ALOGE("Chroma stride can not be smaller than width, stride=%d, width=%d", + uncompressed_p010_image->chroma_stride, + uncompressed_p010_image->width); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (dest == nullptr || dest->data == nullptr) { + ALOGE("received nullptr for destination"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (hdr_tf <= ULTRAHDR_TF_UNSPECIFIED || hdr_tf > ULTRAHDR_TF_MAX + || hdr_tf == ULTRAHDR_TF_SRGB) { + ALOGE("Invalid hdr transfer function %d", hdr_tf); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (uncompressed_yuv_420_image == nullptr) { + return NO_ERROR; + } + + if (uncompressed_yuv_420_image->data == nullptr) { + ALOGE("received nullptr for uncompressed 420 image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (uncompressed_yuv_420_image->luma_stride != 0) { + ALOGE("Stride is not supported for YUV420 image"); + return ERROR_JPEGR_UNSUPPORTED_FEATURE; + } + + if (uncompressed_yuv_420_image->chroma_data != nullptr) { + ALOGE("Pointer to chroma plane is not supported for YUV420 image, chroma data must" + "be immediately after the luma data."); + return ERROR_JPEGR_UNSUPPORTED_FEATURE; + } + + if (uncompressed_p010_image->width != uncompressed_yuv_420_image->width + || uncompressed_p010_image->height != uncompressed_yuv_420_image->height) { + ALOGE("Image resolutions mismatch: P010: %dx%d, YUV420: %dx%d", + uncompressed_p010_image->width, + uncompressed_p010_image->height, + uncompressed_yuv_420_image->width, + uncompressed_yuv_420_image->height); + return ERROR_JPEGR_RESOLUTION_MISMATCH; + } + + if (uncompressed_yuv_420_image->colorGamut <= ULTRAHDR_COLORGAMUT_UNSPECIFIED + || uncompressed_yuv_420_image->colorGamut > ULTRAHDR_COLORGAMUT_MAX) { + ALOGE("Unrecognized 420 color gamut %d", uncompressed_yuv_420_image->colorGamut); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + return NO_ERROR; +} + +status_t JpegR::areInputArgumentsValid(jr_uncompressed_ptr uncompressed_p010_image, + jr_uncompressed_ptr uncompressed_yuv_420_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest, + int quality) { + if (status_t ret = areInputArgumentsValid( + uncompressed_p010_image, uncompressed_yuv_420_image, hdr_tf, dest) != NO_ERROR) { + return ret; + } + + if (quality < 0 || quality > 100) { + ALOGE("quality factor is out side range [0-100], quality factor : %d", quality); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + return NO_ERROR; +} + +/* Encode API-0 */ +status_t JpegR::encodeJPEGR(jr_uncompressed_ptr uncompressed_p010_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest, + int quality, + jr_exif_ptr exif) { + if (status_t ret = areInputArgumentsValid( + uncompressed_p010_image, /* uncompressed_yuv_420_image */ nullptr, + hdr_tf, dest, quality) != NO_ERROR) { + return ret; + } + + if (exif != nullptr && exif->data == nullptr) { + ALOGE("received nullptr for exif metadata"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + ultrahdr_metadata_struct metadata; + metadata.version = kJpegrVersion; + + jpegr_uncompressed_struct uncompressed_yuv_420_image; + unique_ptr<uint8_t[]> uncompressed_yuv_420_image_data = make_unique<uint8_t[]>( + uncompressed_p010_image->width * uncompressed_p010_image->height * 3 / 2); + uncompressed_yuv_420_image.data = uncompressed_yuv_420_image_data.get(); + JPEGR_CHECK(toneMap(uncompressed_p010_image, &uncompressed_yuv_420_image)); + + jpegr_uncompressed_struct map; + JPEGR_CHECK(generateGainMap( + &uncompressed_yuv_420_image, uncompressed_p010_image, hdr_tf, &metadata, &map)); + std::unique_ptr<uint8_t[]> map_data; + map_data.reset(reinterpret_cast<uint8_t*>(map.data)); + + JpegEncoderHelper jpeg_encoder_gainmap; + JPEGR_CHECK(compressGainMap(&map, &jpeg_encoder_gainmap)); + jpegr_compressed_struct compressed_map; + compressed_map.maxLength = jpeg_encoder_gainmap.getCompressedImageSize(); + compressed_map.length = compressed_map.maxLength; + compressed_map.data = jpeg_encoder_gainmap.getCompressedImagePtr(); + compressed_map.colorGamut = ULTRAHDR_COLORGAMUT_UNSPECIFIED; + + sp<DataStruct> icc = IccHelper::writeIccProfile(ULTRAHDR_TF_SRGB, + uncompressed_yuv_420_image.colorGamut); + + // Convert to Bt601 YUV encoding for JPEG encode + JPEGR_CHECK(convertYuv(&uncompressed_yuv_420_image, uncompressed_yuv_420_image.colorGamut, + ULTRAHDR_COLORGAMUT_P3)); + + JpegEncoderHelper jpeg_encoder; + if (!jpeg_encoder.compressImage(uncompressed_yuv_420_image.data, + uncompressed_yuv_420_image.width, + uncompressed_yuv_420_image.height, quality, + icc->getData(), icc->getLength())) { + return ERROR_JPEGR_ENCODE_ERROR; + } + jpegr_compressed_struct jpeg; + jpeg.data = jpeg_encoder.getCompressedImagePtr(); + jpeg.length = jpeg_encoder.getCompressedImageSize(); + + // No ICC since JPEG encode already did it + JPEGR_CHECK(appendGainMap(&jpeg, &compressed_map, exif, /* icc */ nullptr, /* icc size */ 0, + &metadata, dest)); + + return NO_ERROR; +} + +/* Encode API-1 */ +status_t JpegR::encodeJPEGR(jr_uncompressed_ptr uncompressed_p010_image, + jr_uncompressed_ptr uncompressed_yuv_420_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest, + int quality, + jr_exif_ptr exif) { + if (uncompressed_yuv_420_image == nullptr) { + ALOGE("received nullptr for uncompressed 420 image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (exif != nullptr && exif->data == nullptr) { + ALOGE("received nullptr for exif metadata"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (status_t ret = areInputArgumentsValid( + uncompressed_p010_image, uncompressed_yuv_420_image, hdr_tf, + dest, quality) != NO_ERROR) { + return ret; + } + + ultrahdr_metadata_struct metadata; + metadata.version = kJpegrVersion; + + jpegr_uncompressed_struct map; + JPEGR_CHECK(generateGainMap( + uncompressed_yuv_420_image, uncompressed_p010_image, hdr_tf, &metadata, &map)); + std::unique_ptr<uint8_t[]> map_data; + map_data.reset(reinterpret_cast<uint8_t*>(map.data)); + + JpegEncoderHelper jpeg_encoder_gainmap; + JPEGR_CHECK(compressGainMap(&map, &jpeg_encoder_gainmap)); + jpegr_compressed_struct compressed_map; + compressed_map.maxLength = jpeg_encoder_gainmap.getCompressedImageSize(); + compressed_map.length = compressed_map.maxLength; + compressed_map.data = jpeg_encoder_gainmap.getCompressedImagePtr(); + compressed_map.colorGamut = ULTRAHDR_COLORGAMUT_UNSPECIFIED; + + sp<DataStruct> icc = IccHelper::writeIccProfile(ULTRAHDR_TF_SRGB, + uncompressed_yuv_420_image->colorGamut); + + // Convert to Bt601 YUV encoding for JPEG encode; make a copy so as to no clobber client data + unique_ptr<uint8_t[]> yuv_420_bt601_data = make_unique<uint8_t[]>( + uncompressed_yuv_420_image->width * uncompressed_yuv_420_image->height * 3 / 2); + memcpy(yuv_420_bt601_data.get(), uncompressed_yuv_420_image->data, + uncompressed_yuv_420_image->width * uncompressed_yuv_420_image->height * 3 / 2); + + jpegr_uncompressed_struct yuv_420_bt601_image = { + yuv_420_bt601_data.get(), uncompressed_yuv_420_image->width, uncompressed_yuv_420_image->height, + uncompressed_yuv_420_image->colorGamut }; + JPEGR_CHECK(convertYuv(&yuv_420_bt601_image, yuv_420_bt601_image.colorGamut, + ULTRAHDR_COLORGAMUT_P3)); + + JpegEncoderHelper jpeg_encoder; + if (!jpeg_encoder.compressImage(yuv_420_bt601_image.data, + yuv_420_bt601_image.width, + yuv_420_bt601_image.height, quality, + icc->getData(), icc->getLength())) { + return ERROR_JPEGR_ENCODE_ERROR; + } + jpegr_compressed_struct jpeg; + jpeg.data = jpeg_encoder.getCompressedImagePtr(); + jpeg.length = jpeg_encoder.getCompressedImageSize(); + + // No ICC since jpeg encode already did it + JPEGR_CHECK(appendGainMap(&jpeg, &compressed_map, exif, /* icc */ nullptr, /* icc size */ 0, + &metadata, dest)); + + return NO_ERROR; +} + +/* Encode API-2 */ +status_t JpegR::encodeJPEGR(jr_uncompressed_ptr uncompressed_p010_image, + jr_uncompressed_ptr uncompressed_yuv_420_image, + jr_compressed_ptr compressed_jpeg_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest) { + if (uncompressed_yuv_420_image == nullptr) { + ALOGE("received nullptr for uncompressed 420 image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (compressed_jpeg_image == nullptr || compressed_jpeg_image->data == nullptr) { + ALOGE("received nullptr for compressed jpeg image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (status_t ret = areInputArgumentsValid( + uncompressed_p010_image, uncompressed_yuv_420_image, hdr_tf, dest) != NO_ERROR) { + return ret; + } + + ultrahdr_metadata_struct metadata; + metadata.version = kJpegrVersion; + + jpegr_uncompressed_struct map; + JPEGR_CHECK(generateGainMap( + uncompressed_yuv_420_image, uncompressed_p010_image, hdr_tf, &metadata, &map)); + std::unique_ptr<uint8_t[]> map_data; + map_data.reset(reinterpret_cast<uint8_t*>(map.data)); + + JpegEncoderHelper jpeg_encoder_gainmap; + JPEGR_CHECK(compressGainMap(&map, &jpeg_encoder_gainmap)); + jpegr_compressed_struct compressed_map; + compressed_map.maxLength = jpeg_encoder_gainmap.getCompressedImageSize(); + compressed_map.length = compressed_map.maxLength; + compressed_map.data = jpeg_encoder_gainmap.getCompressedImagePtr(); + compressed_map.colorGamut = ULTRAHDR_COLORGAMUT_UNSPECIFIED; + + // We just want to check if ICC is present, so don't do a full decode. Note, + // this doesn't verify that the ICC is valid. + JpegDecoderHelper decoder; + std::vector<uint8_t> icc; + decoder.getCompressedImageParameters(compressed_jpeg_image->data, compressed_jpeg_image->length, + /* pWidth */ nullptr, /* pHeight */ nullptr, + &icc, /* exifData */ nullptr); + + // Add ICC if not already present. + if (icc.size() > 0) { + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, &compressed_map, /* exif */ nullptr, + /* icc */ nullptr, /* icc size */ 0, &metadata, dest)); + } else { + sp<DataStruct> newIcc = IccHelper::writeIccProfile(ULTRAHDR_TF_SRGB, + uncompressed_yuv_420_image->colorGamut); + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, &compressed_map, /* exif */ nullptr, + newIcc->getData(), newIcc->getLength(), &metadata, dest)); + } + + return NO_ERROR; +} + +/* Encode API-3 */ +status_t JpegR::encodeJPEGR(jr_uncompressed_ptr uncompressed_p010_image, + jr_compressed_ptr compressed_jpeg_image, + ultrahdr_transfer_function hdr_tf, + jr_compressed_ptr dest) { + if (compressed_jpeg_image == nullptr || compressed_jpeg_image->data == nullptr) { + ALOGE("received nullptr for compressed jpeg image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (status_t ret = areInputArgumentsValid( + uncompressed_p010_image, /* uncompressed_yuv_420_image */ nullptr, + hdr_tf, dest) != NO_ERROR) { + return ret; + } + + // Note: output is Bt.601 YUV encoded regardless of gamut, due to jpeg decode. + JpegDecoderHelper jpeg_decoder; + if (!jpeg_decoder.decompressImage(compressed_jpeg_image->data, compressed_jpeg_image->length)) { + return ERROR_JPEGR_DECODE_ERROR; + } + jpegr_uncompressed_struct uncompressed_yuv_420_image; + uncompressed_yuv_420_image.data = jpeg_decoder.getDecompressedImagePtr(); + uncompressed_yuv_420_image.width = jpeg_decoder.getDecompressedImageWidth(); + uncompressed_yuv_420_image.height = jpeg_decoder.getDecompressedImageHeight(); + uncompressed_yuv_420_image.colorGamut = compressed_jpeg_image->colorGamut; + + if (uncompressed_p010_image->width != uncompressed_yuv_420_image.width + || uncompressed_p010_image->height != uncompressed_yuv_420_image.height) { + return ERROR_JPEGR_RESOLUTION_MISMATCH; + } + + ultrahdr_metadata_struct metadata; + metadata.version = kJpegrVersion; + + jpegr_uncompressed_struct map; + // Indicate that the SDR image is Bt.601 YUV encoded. + JPEGR_CHECK(generateGainMap( + &uncompressed_yuv_420_image, uncompressed_p010_image, hdr_tf, &metadata, &map, + true /* sdr_is_601 */ )); + std::unique_ptr<uint8_t[]> map_data; + map_data.reset(reinterpret_cast<uint8_t*>(map.data)); + + JpegEncoderHelper jpeg_encoder_gainmap; + JPEGR_CHECK(compressGainMap(&map, &jpeg_encoder_gainmap)); + jpegr_compressed_struct compressed_map; + compressed_map.maxLength = jpeg_encoder_gainmap.getCompressedImageSize(); + compressed_map.length = compressed_map.maxLength; + compressed_map.data = jpeg_encoder_gainmap.getCompressedImagePtr(); + compressed_map.colorGamut = ULTRAHDR_COLORGAMUT_UNSPECIFIED; + + // We just want to check if ICC is present, so don't do a full decode. Note, + // this doesn't verify that the ICC is valid. + JpegDecoderHelper decoder; + std::vector<uint8_t> icc; + decoder.getCompressedImageParameters(compressed_jpeg_image->data, compressed_jpeg_image->length, + /* pWidth */ nullptr, /* pHeight */ nullptr, + &icc, /* exifData */ nullptr); + + // Add ICC if not already present. + if (icc.size() > 0) { + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, &compressed_map, /* exif */ nullptr, + /* icc */ nullptr, /* icc size */ 0, &metadata, dest)); + } else { + sp<DataStruct> newIcc = IccHelper::writeIccProfile(ULTRAHDR_TF_SRGB, + uncompressed_yuv_420_image.colorGamut); + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, &compressed_map, /* exif */ nullptr, + newIcc->getData(), newIcc->getLength(), &metadata, dest)); + } + + return NO_ERROR; +} + +/* Encode API-4 */ +status_t JpegR::encodeJPEGR(jr_compressed_ptr compressed_jpeg_image, + jr_compressed_ptr compressed_gainmap, + ultrahdr_metadata_ptr metadata, + jr_compressed_ptr dest) { + if (compressed_jpeg_image == nullptr || compressed_jpeg_image->data == nullptr) { + ALOGE("received nullptr for compressed jpeg image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (compressed_gainmap == nullptr || compressed_gainmap->data == nullptr) { + ALOGE("received nullptr for compressed gain map"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (dest == nullptr || dest->data == nullptr) { + ALOGE("received nullptr for destination"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + // We just want to check if ICC is present, so don't do a full decode. Note, + // this doesn't verify that the ICC is valid. + JpegDecoderHelper decoder; + std::vector<uint8_t> icc; + decoder.getCompressedImageParameters(compressed_jpeg_image->data, compressed_jpeg_image->length, + /* pWidth */ nullptr, /* pHeight */ nullptr, + &icc, /* exifData */ nullptr); + + // Add ICC if not already present. + if (icc.size() > 0) { + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, compressed_gainmap, /* exif */ nullptr, + /* icc */ nullptr, /* icc size */ 0, metadata, dest)); + } else { + sp<DataStruct> newIcc = IccHelper::writeIccProfile(ULTRAHDR_TF_SRGB, + compressed_jpeg_image->colorGamut); + JPEGR_CHECK(appendGainMap(compressed_jpeg_image, compressed_gainmap, /* exif */ nullptr, + newIcc->getData(), newIcc->getLength(), metadata, dest)); + } + + return NO_ERROR; +} + +status_t JpegR::getJPEGRInfo(jr_compressed_ptr compressed_jpegr_image, jr_info_ptr jpegr_info) { + if (compressed_jpegr_image == nullptr || compressed_jpegr_image->data == nullptr) { + ALOGE("received nullptr for compressed jpegr image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (jpegr_info == nullptr) { + ALOGE("received nullptr for compressed jpegr info struct"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + jpegr_compressed_struct primary_image, gain_map; + JPEGR_CHECK(extractPrimaryImageAndGainMap(compressed_jpegr_image, + &primary_image, &gain_map)); + + JpegDecoderHelper jpeg_decoder; + if (!jpeg_decoder.getCompressedImageParameters(primary_image.data, primary_image.length, + &jpegr_info->width, &jpegr_info->height, + jpegr_info->iccData, jpegr_info->exifData)) { + return ERROR_JPEGR_DECODE_ERROR; + } + + return NO_ERROR; +} + +/* Decode API */ +status_t JpegR::decodeJPEGR(jr_compressed_ptr compressed_jpegr_image, + jr_uncompressed_ptr dest, + float max_display_boost, + jr_exif_ptr exif, + ultrahdr_output_format output_format, + jr_uncompressed_ptr gain_map, + ultrahdr_metadata_ptr metadata) { + if (compressed_jpegr_image == nullptr || compressed_jpegr_image->data == nullptr) { + ALOGE("received nullptr for compressed jpegr image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (dest == nullptr || dest->data == nullptr) { + ALOGE("received nullptr for dest image"); + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (max_display_boost < 1.0f) { + ALOGE("received bad value for max_display_boost %f", max_display_boost); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (exif != nullptr && exif->data == nullptr) { + ALOGE("received nullptr address for exif data"); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (output_format <= ULTRAHDR_OUTPUT_UNSPECIFIED || output_format > ULTRAHDR_OUTPUT_MAX) { + ALOGE("received bad value for output format %d", output_format); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (output_format == ULTRAHDR_OUTPUT_SDR) { + JpegDecoderHelper jpeg_decoder; + if (!jpeg_decoder.decompressImage(compressed_jpegr_image->data, compressed_jpegr_image->length, + true)) { + return ERROR_JPEGR_DECODE_ERROR; + } + jpegr_uncompressed_struct uncompressed_rgba_image; + uncompressed_rgba_image.data = jpeg_decoder.getDecompressedImagePtr(); + uncompressed_rgba_image.width = jpeg_decoder.getDecompressedImageWidth(); + uncompressed_rgba_image.height = jpeg_decoder.getDecompressedImageHeight(); + memcpy(dest->data, uncompressed_rgba_image.data, + uncompressed_rgba_image.width * uncompressed_rgba_image.height * 4); + dest->width = uncompressed_rgba_image.width; + dest->height = uncompressed_rgba_image.height; + + if (gain_map == nullptr && exif == nullptr) { + return NO_ERROR; + } + + if (exif != nullptr) { + if (exif->data == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + if (exif->length < jpeg_decoder.getEXIFSize()) { + return ERROR_JPEGR_BUFFER_TOO_SMALL; + } + memcpy(exif->data, jpeg_decoder.getEXIFPtr(), jpeg_decoder.getEXIFSize()); + exif->length = jpeg_decoder.getEXIFSize(); + } + if (gain_map == nullptr) { + return NO_ERROR; + } + } + + jpegr_compressed_struct compressed_map; + JPEGR_CHECK(extractGainMap(compressed_jpegr_image, &compressed_map)); + + JpegDecoderHelper gain_map_decoder; + if (!gain_map_decoder.decompressImage(compressed_map.data, compressed_map.length)) { + return ERROR_JPEGR_DECODE_ERROR; + } + if ((gain_map_decoder.getDecompressedImageWidth() * + gain_map_decoder.getDecompressedImageHeight()) > + gain_map_decoder.getDecompressedImageSize()) { + return ERROR_JPEGR_CALCULATION_ERROR; + } + + if (gain_map != nullptr) { + gain_map->width = gain_map_decoder.getDecompressedImageWidth(); + gain_map->height = gain_map_decoder.getDecompressedImageHeight(); + int size = gain_map->width * gain_map->height; + gain_map->data = malloc(size); + memcpy(gain_map->data, gain_map_decoder.getDecompressedImagePtr(), size); + } + + ultrahdr_metadata_struct uhdr_metadata; + if (!getMetadataFromXMP(static_cast<uint8_t*>(gain_map_decoder.getXMPPtr()), + gain_map_decoder.getXMPSize(), &uhdr_metadata)) { + return ERROR_JPEGR_INVALID_METADATA; + } + + if (metadata != nullptr) { + metadata->version = uhdr_metadata.version; + metadata->minContentBoost = uhdr_metadata.minContentBoost; + metadata->maxContentBoost = uhdr_metadata.maxContentBoost; + metadata->gamma = uhdr_metadata.gamma; + metadata->offsetSdr = uhdr_metadata.offsetSdr; + metadata->offsetHdr = uhdr_metadata.offsetHdr; + metadata->hdrCapacityMin = uhdr_metadata.hdrCapacityMin; + metadata->hdrCapacityMax = uhdr_metadata.hdrCapacityMax; + } + + if (output_format == ULTRAHDR_OUTPUT_SDR) { + return NO_ERROR; + } + + JpegDecoderHelper jpeg_decoder; + if (!jpeg_decoder.decompressImage(compressed_jpegr_image->data, compressed_jpegr_image->length)) { + return ERROR_JPEGR_DECODE_ERROR; + } + if ((jpeg_decoder.getDecompressedImageWidth() * + jpeg_decoder.getDecompressedImageHeight() * 3 / 2) > + jpeg_decoder.getDecompressedImageSize()) { + return ERROR_JPEGR_CALCULATION_ERROR; + } + + if (exif != nullptr) { + if (exif->data == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + if (exif->length < jpeg_decoder.getEXIFSize()) { + return ERROR_JPEGR_BUFFER_TOO_SMALL; + } + memcpy(exif->data, jpeg_decoder.getEXIFPtr(), jpeg_decoder.getEXIFSize()); + exif->length = jpeg_decoder.getEXIFSize(); + } + + jpegr_uncompressed_struct map; + map.data = gain_map_decoder.getDecompressedImagePtr(); + map.width = gain_map_decoder.getDecompressedImageWidth(); + map.height = gain_map_decoder.getDecompressedImageHeight(); + + jpegr_uncompressed_struct uncompressed_yuv_420_image; + uncompressed_yuv_420_image.data = jpeg_decoder.getDecompressedImagePtr(); + uncompressed_yuv_420_image.width = jpeg_decoder.getDecompressedImageWidth(); + uncompressed_yuv_420_image.height = jpeg_decoder.getDecompressedImageHeight(); + uncompressed_yuv_420_image.colorGamut = IccHelper::readIccColorGamut( + jpeg_decoder.getICCPtr(), jpeg_decoder.getICCSize()); + + JPEGR_CHECK(applyGainMap(&uncompressed_yuv_420_image, &map, &uhdr_metadata, output_format, + max_display_boost, dest)); + return NO_ERROR; +} + +status_t JpegR::compressGainMap(jr_uncompressed_ptr uncompressed_gain_map, + JpegEncoderHelper* jpeg_encoder) { + if (uncompressed_gain_map == nullptr || jpeg_encoder == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + // Don't need to convert YUV to Bt601 since single channel + if (!jpeg_encoder->compressImage(uncompressed_gain_map->data, + uncompressed_gain_map->width, + uncompressed_gain_map->height, + kMapCompressQuality, + nullptr, + 0, + true /* isSingleChannel */)) { + return ERROR_JPEGR_ENCODE_ERROR; + } + + return NO_ERROR; +} + +const int kJobSzInRows = 16; +static_assert(kJobSzInRows > 0 && kJobSzInRows % kMapDimensionScaleFactor == 0, + "align job size to kMapDimensionScaleFactor"); + +class JobQueue { + public: + bool dequeueJob(size_t& rowStart, size_t& rowEnd); + void enqueueJob(size_t rowStart, size_t rowEnd); + void markQueueForEnd(); + void reset(); + + private: + bool mQueuedAllJobs = false; + std::deque<std::tuple<size_t, size_t>> mJobs; + std::mutex mMutex; + std::condition_variable mCv; +}; + +bool JobQueue::dequeueJob(size_t& rowStart, size_t& rowEnd) { + std::unique_lock<std::mutex> lock{mMutex}; + while (true) { + if (mJobs.empty()) { + if (mQueuedAllJobs) { + return false; + } else { + mCv.wait_for(lock, std::chrono::milliseconds(100)); + } + } else { + auto it = mJobs.begin(); + rowStart = std::get<0>(*it); + rowEnd = std::get<1>(*it); + mJobs.erase(it); + return true; + } + } + return false; +} + +void JobQueue::enqueueJob(size_t rowStart, size_t rowEnd) { + std::unique_lock<std::mutex> lock{mMutex}; + mJobs.push_back(std::make_tuple(rowStart, rowEnd)); + lock.unlock(); + mCv.notify_one(); +} + +void JobQueue::markQueueForEnd() { + std::unique_lock<std::mutex> lock{mMutex}; + mQueuedAllJobs = true; + lock.unlock(); + mCv.notify_all(); +} + +void JobQueue::reset() { + std::unique_lock<std::mutex> lock{mMutex}; + mJobs.clear(); + mQueuedAllJobs = false; +} + +status_t JpegR::generateGainMap(jr_uncompressed_ptr uncompressed_yuv_420_image, + jr_uncompressed_ptr uncompressed_p010_image, + ultrahdr_transfer_function hdr_tf, + ultrahdr_metadata_ptr metadata, + jr_uncompressed_ptr dest, + bool sdr_is_601) { + if (uncompressed_yuv_420_image == nullptr + || uncompressed_p010_image == nullptr + || metadata == nullptr + || dest == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (uncompressed_yuv_420_image->width != uncompressed_p010_image->width + || uncompressed_yuv_420_image->height != uncompressed_p010_image->height) { + return ERROR_JPEGR_RESOLUTION_MISMATCH; + } + + if (uncompressed_yuv_420_image->colorGamut == ULTRAHDR_COLORGAMUT_UNSPECIFIED + || uncompressed_p010_image->colorGamut == ULTRAHDR_COLORGAMUT_UNSPECIFIED) { + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + + size_t image_width = uncompressed_yuv_420_image->width; + size_t image_height = uncompressed_yuv_420_image->height; + size_t map_width = image_width / kMapDimensionScaleFactor; + size_t map_height = image_height / kMapDimensionScaleFactor; + size_t map_stride = static_cast<size_t>( + floor((map_width + kJpegBlock - 1) / kJpegBlock)) * kJpegBlock; + size_t map_height_aligned = ((map_height + 1) >> 1) << 1; + + dest->width = map_stride; + dest->height = map_height_aligned; + dest->colorGamut = ULTRAHDR_COLORGAMUT_UNSPECIFIED; + dest->data = new uint8_t[map_stride * map_height_aligned]; + std::unique_ptr<uint8_t[]> map_data; + map_data.reset(reinterpret_cast<uint8_t*>(dest->data)); + + ColorTransformFn hdrInvOetf = nullptr; + float hdr_white_nits = kSdrWhiteNits; + switch (hdr_tf) { + case ULTRAHDR_TF_LINEAR: + hdrInvOetf = identityConversion; + break; + case ULTRAHDR_TF_HLG: +#if USE_HLG_INVOETF_LUT + hdrInvOetf = hlgInvOetfLUT; +#else + hdrInvOetf = hlgInvOetf; +#endif + hdr_white_nits = kHlgMaxNits; + break; + case ULTRAHDR_TF_PQ: +#if USE_PQ_INVOETF_LUT + hdrInvOetf = pqInvOetfLUT; +#else + hdrInvOetf = pqInvOetf; +#endif + hdr_white_nits = kPqMaxNits; + break; + default: + // Should be impossible to hit after input validation. + return ERROR_JPEGR_INVALID_TRANS_FUNC; + } + + metadata->maxContentBoost = hdr_white_nits / kSdrWhiteNits; + metadata->minContentBoost = 1.0f; + metadata->gamma = 1.0f; + metadata->offsetSdr = 0.0f; + metadata->offsetHdr = 0.0f; + metadata->hdrCapacityMin = 1.0f; + metadata->hdrCapacityMax = metadata->maxContentBoost; + + float log2MinBoost = log2(metadata->minContentBoost); + float log2MaxBoost = log2(metadata->maxContentBoost); + + ColorTransformFn hdrGamutConversionFn = getHdrConversionFn( + uncompressed_yuv_420_image->colorGamut, uncompressed_p010_image->colorGamut); + + ColorCalculationFn luminanceFn = nullptr; + ColorTransformFn sdrYuvToRgbFn = nullptr; + switch (uncompressed_yuv_420_image->colorGamut) { + case ULTRAHDR_COLORGAMUT_BT709: + luminanceFn = srgbLuminance; + sdrYuvToRgbFn = srgbYuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_P3: + luminanceFn = p3Luminance; + sdrYuvToRgbFn = p3YuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_BT2100: + luminanceFn = bt2100Luminance; + sdrYuvToRgbFn = bt2100YuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_UNSPECIFIED: + // Should be impossible to hit after input validation. + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + if (sdr_is_601) { + sdrYuvToRgbFn = p3YuvToRgb; + } + + ColorTransformFn hdrYuvToRgbFn = nullptr; + switch (uncompressed_p010_image->colorGamut) { + case ULTRAHDR_COLORGAMUT_BT709: + hdrYuvToRgbFn = srgbYuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_P3: + hdrYuvToRgbFn = p3YuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_BT2100: + hdrYuvToRgbFn = bt2100YuvToRgb; + break; + case ULTRAHDR_COLORGAMUT_UNSPECIFIED: + // Should be impossible to hit after input validation. + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + + std::mutex mutex; + const int threads = std::clamp(GetCPUCoreCount(), 1, 4); + size_t rowStep = threads == 1 ? image_height : kJobSzInRows; + JobQueue jobQueue; + + std::function<void()> generateMap = [uncompressed_yuv_420_image, uncompressed_p010_image, + metadata, dest, hdrInvOetf, hdrGamutConversionFn, + luminanceFn, sdrYuvToRgbFn, hdrYuvToRgbFn, hdr_white_nits, + log2MinBoost, log2MaxBoost, &jobQueue]() -> void { + size_t rowStart, rowEnd; + size_t dest_map_width = uncompressed_yuv_420_image->width / kMapDimensionScaleFactor; + size_t dest_map_stride = dest->width; + while (jobQueue.dequeueJob(rowStart, rowEnd)) { + for (size_t y = rowStart; y < rowEnd; ++y) { + for (size_t x = 0; x < dest_map_width; ++x) { + Color sdr_yuv_gamma = + sampleYuv420(uncompressed_yuv_420_image, kMapDimensionScaleFactor, x, y); + Color sdr_rgb_gamma = sdrYuvToRgbFn(sdr_yuv_gamma); + // We are assuming the SDR input is always sRGB transfer. +#if USE_SRGB_INVOETF_LUT + Color sdr_rgb = srgbInvOetfLUT(sdr_rgb_gamma); +#else + Color sdr_rgb = srgbInvOetf(sdr_rgb_gamma); +#endif + float sdr_y_nits = luminanceFn(sdr_rgb) * kSdrWhiteNits; + + Color hdr_yuv_gamma = sampleP010(uncompressed_p010_image, kMapDimensionScaleFactor, x, y); + Color hdr_rgb_gamma = hdrYuvToRgbFn(hdr_yuv_gamma); + Color hdr_rgb = hdrInvOetf(hdr_rgb_gamma); + hdr_rgb = hdrGamutConversionFn(hdr_rgb); + float hdr_y_nits = luminanceFn(hdr_rgb) * hdr_white_nits; + + size_t pixel_idx = x + y * dest_map_stride; + reinterpret_cast<uint8_t*>(dest->data)[pixel_idx] = + encodeGain(sdr_y_nits, hdr_y_nits, metadata, log2MinBoost, log2MaxBoost); + } + } + } + }; + + // generate map + std::vector<std::thread> workers; + for (int th = 0; th < threads - 1; th++) { + workers.push_back(std::thread(generateMap)); + } + + rowStep = (threads == 1 ? image_height : kJobSzInRows) / kMapDimensionScaleFactor; + for (size_t rowStart = 0; rowStart < map_height;) { + size_t rowEnd = std::min(rowStart + rowStep, map_height); + jobQueue.enqueueJob(rowStart, rowEnd); + rowStart = rowEnd; + } + jobQueue.markQueueForEnd(); + generateMap(); + std::for_each(workers.begin(), workers.end(), [](std::thread& t) { t.join(); }); + + map_data.release(); + return NO_ERROR; +} + +status_t JpegR::applyGainMap(jr_uncompressed_ptr uncompressed_yuv_420_image, + jr_uncompressed_ptr uncompressed_gain_map, + ultrahdr_metadata_ptr metadata, + ultrahdr_output_format output_format, + float max_display_boost, + jr_uncompressed_ptr dest) { + if (uncompressed_yuv_420_image == nullptr + || uncompressed_gain_map == nullptr + || metadata == nullptr + || dest == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (metadata->version.compare("1.0")) { + ALOGE("Unsupported metadata version: %s", metadata->version.c_str()); + return ERROR_JPEGR_UNSUPPORTED_METADATA; + } + if (metadata->gamma != 1.0f) { + ALOGE("Unsupported metadata gamma: %f", metadata->gamma); + return ERROR_JPEGR_UNSUPPORTED_METADATA; + } + if (metadata->offsetSdr != 0.0f || metadata->offsetHdr != 0.0f) { + ALOGE("Unsupported metadata offset sdr, hdr: %f, %f", metadata->offsetSdr, + metadata->offsetHdr); + return ERROR_JPEGR_UNSUPPORTED_METADATA; + } + if (metadata->hdrCapacityMin != metadata->minContentBoost + || metadata->hdrCapacityMax != metadata->maxContentBoost) { + ALOGE("Unsupported metadata hdr capacity min, max: %f, %f", metadata->hdrCapacityMin, + metadata->hdrCapacityMax); + return ERROR_JPEGR_UNSUPPORTED_METADATA; + } + + // TODO: remove once map scaling factor is computed based on actual map dims + size_t image_width = uncompressed_yuv_420_image->width; + size_t image_height = uncompressed_yuv_420_image->height; + size_t map_width = image_width / kMapDimensionScaleFactor; + size_t map_height = image_height / kMapDimensionScaleFactor; + map_width = static_cast<size_t>( + floor((map_width + kJpegBlock - 1) / kJpegBlock)) * kJpegBlock; + map_height = ((map_height + 1) >> 1) << 1; + if (map_width != uncompressed_gain_map->width + || map_height != uncompressed_gain_map->height) { + ALOGE("gain map dimensions and primary image dimensions are not to scale"); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + dest->width = uncompressed_yuv_420_image->width; + dest->height = uncompressed_yuv_420_image->height; + ShepardsIDW idwTable(kMapDimensionScaleFactor); + float display_boost = std::min(max_display_boost, metadata->maxContentBoost); + GainLUT gainLUT(metadata, display_boost); + + JobQueue jobQueue; + std::function<void()> applyRecMap = [uncompressed_yuv_420_image, uncompressed_gain_map, + metadata, dest, &jobQueue, &idwTable, output_format, + &gainLUT, display_boost]() -> void { + size_t width = uncompressed_yuv_420_image->width; + size_t height = uncompressed_yuv_420_image->height; + + size_t rowStart, rowEnd; + while (jobQueue.dequeueJob(rowStart, rowEnd)) { + for (size_t y = rowStart; y < rowEnd; ++y) { + for (size_t x = 0; x < width; ++x) { + Color yuv_gamma_sdr = getYuv420Pixel(uncompressed_yuv_420_image, x, y); + // Assuming the sdr image is a decoded JPEG, we should always use Rec.601 YUV coefficients + Color rgb_gamma_sdr = p3YuvToRgb(yuv_gamma_sdr); + // We are assuming the SDR base image is always sRGB transfer. +#if USE_SRGB_INVOETF_LUT + Color rgb_sdr = srgbInvOetfLUT(rgb_gamma_sdr); +#else + Color rgb_sdr = srgbInvOetf(rgb_gamma_sdr); +#endif + float gain; + // TODO: determine map scaling factor based on actual map dims + size_t map_scale_factor = kMapDimensionScaleFactor; + // TODO: If map_scale_factor is guaranteed to be an integer, then remove the following. + // Currently map_scale_factor is of type size_t, but it could be changed to a float + // later. + if (map_scale_factor != floorf(map_scale_factor)) { + gain = sampleMap(uncompressed_gain_map, map_scale_factor, x, y); + } else { + gain = sampleMap(uncompressed_gain_map, map_scale_factor, x, y, idwTable); + } + +#if USE_APPLY_GAIN_LUT + Color rgb_hdr = applyGainLUT(rgb_sdr, gain, gainLUT); +#else + Color rgb_hdr = applyGain(rgb_sdr, gain, metadata, display_boost); +#endif + rgb_hdr = rgb_hdr / display_boost; + size_t pixel_idx = x + y * width; + + switch (output_format) { + case ULTRAHDR_OUTPUT_HDR_LINEAR: + { + uint64_t rgba_f16 = colorToRgbaF16(rgb_hdr); + reinterpret_cast<uint64_t*>(dest->data)[pixel_idx] = rgba_f16; + break; + } + case ULTRAHDR_OUTPUT_HDR_HLG: + { +#if USE_HLG_OETF_LUT + ColorTransformFn hdrOetf = hlgOetfLUT; +#else + ColorTransformFn hdrOetf = hlgOetf; +#endif + Color rgb_gamma_hdr = hdrOetf(rgb_hdr); + uint32_t rgba_1010102 = colorToRgba1010102(rgb_gamma_hdr); + reinterpret_cast<uint32_t*>(dest->data)[pixel_idx] = rgba_1010102; + break; + } + case ULTRAHDR_OUTPUT_HDR_PQ: + { +#if USE_HLG_OETF_LUT + ColorTransformFn hdrOetf = pqOetfLUT; +#else + ColorTransformFn hdrOetf = pqOetf; +#endif + Color rgb_gamma_hdr = hdrOetf(rgb_hdr); + uint32_t rgba_1010102 = colorToRgba1010102(rgb_gamma_hdr); + reinterpret_cast<uint32_t*>(dest->data)[pixel_idx] = rgba_1010102; + break; + } + default: + {} + // Should be impossible to hit after input validation. + } + } + } + } + }; + + const int threads = std::clamp(GetCPUCoreCount(), 1, 4); + std::vector<std::thread> workers; + for (int th = 0; th < threads - 1; th++) { + workers.push_back(std::thread(applyRecMap)); + } + const int rowStep = threads == 1 ? uncompressed_yuv_420_image->height : kJobSzInRows; + for (int rowStart = 0; rowStart < uncompressed_yuv_420_image->height;) { + int rowEnd = std::min(rowStart + rowStep, uncompressed_yuv_420_image->height); + jobQueue.enqueueJob(rowStart, rowEnd); + rowStart = rowEnd; + } + jobQueue.markQueueForEnd(); + applyRecMap(); + std::for_each(workers.begin(), workers.end(), [](std::thread& t) { t.join(); }); + return NO_ERROR; +} + +status_t JpegR::extractPrimaryImageAndGainMap(jr_compressed_ptr compressed_jpegr_image, + jr_compressed_ptr primary_image, + jr_compressed_ptr gain_map) { + if (compressed_jpegr_image == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + MessageHandler msg_handler; + std::shared_ptr<DataSegment> seg = + DataSegment::Create(DataRange(0, compressed_jpegr_image->length), + static_cast<const uint8_t*>(compressed_jpegr_image->data), + DataSegment::BufferDispositionPolicy::kDontDelete); + DataSegmentDataSource data_source(seg); + JpegInfoBuilder jpeg_info_builder; + jpeg_info_builder.SetImageLimit(2); + JpegScanner jpeg_scanner(&msg_handler); + jpeg_scanner.Run(&data_source, &jpeg_info_builder); + data_source.Reset(); + + if (jpeg_scanner.HasError()) { + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + const auto& jpeg_info = jpeg_info_builder.GetInfo(); + const auto& image_ranges = jpeg_info.GetImageRanges(); + if (image_ranges.empty()) { + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (image_ranges.size() != 2) { + // Must be 2 JPEG Images + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (primary_image != nullptr) { + primary_image->data = static_cast<uint8_t*>(compressed_jpegr_image->data) + + image_ranges[0].GetBegin(); + primary_image->length = image_ranges[0].GetLength(); + } + + if (gain_map != nullptr) { + gain_map->data = static_cast<uint8_t*>(compressed_jpegr_image->data) + + image_ranges[1].GetBegin(); + gain_map->length = image_ranges[1].GetLength(); + } + + return NO_ERROR; +} + + +status_t JpegR::extractGainMap(jr_compressed_ptr compressed_jpegr_image, + jr_compressed_ptr dest) { + if (compressed_jpegr_image == nullptr || dest == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + return extractPrimaryImageAndGainMap(compressed_jpegr_image, nullptr, dest); +} + +// JPEG/R structure: +// SOI (ff d8) +// +// (Optional, only if EXIF package is from outside) +// APP1 (ff e1) +// 2 bytes of length (2 + length of exif package) +// EXIF package (this includes the first two bytes representing the package length) +// +// (Required, XMP package) APP1 (ff e1) +// 2 bytes of length (2 + 29 + length of xmp package) +// name space ("http://ns.adobe.com/xap/1.0/\0") +// XMP +// +// (Required, MPF package) APP2 (ff e2) +// 2 bytes of length +// MPF +// +// (Required) primary image (without the first two bytes (SOI), may have other packages) +// +// SOI (ff d8) +// +// (Required, XMP package) APP1 (ff e1) +// 2 bytes of length (2 + 29 + length of xmp package) +// name space ("http://ns.adobe.com/xap/1.0/\0") +// XMP +// +// (Required) secondary image (the gain map, without the first two bytes (SOI)) +// +// Metadata versions we are using: +// ECMA TR-98 for JFIF marker +// Exif 2.2 spec for EXIF marker +// Adobe XMP spec part 3 for XMP marker +// ICC v4.3 spec for ICC +status_t JpegR::appendGainMap(jr_compressed_ptr compressed_jpeg_image, + jr_compressed_ptr compressed_gain_map, + jr_exif_ptr exif, + void* icc, size_t icc_size, + ultrahdr_metadata_ptr metadata, + jr_compressed_ptr dest) { + if (compressed_jpeg_image == nullptr + || compressed_gain_map == nullptr + || metadata == nullptr + || dest == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (metadata->version.compare("1.0")) { + ALOGE("received bad value for version: %s", metadata->version.c_str()); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + if (metadata->maxContentBoost < metadata->minContentBoost) { + ALOGE("received bad value for content boost min %f, max %f", metadata->minContentBoost, + metadata->maxContentBoost); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (metadata->hdrCapacityMax < metadata->hdrCapacityMin || metadata->hdrCapacityMin < 1.0f) { + ALOGE("received bad value for hdr capacity min %f, max %f", metadata->hdrCapacityMin, + metadata->hdrCapacityMax); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (metadata->offsetSdr < 0.0f || metadata->offsetHdr < 0.0f) { + ALOGE("received bad value for offset sdr %f, hdr %f", metadata->offsetSdr, + metadata->offsetHdr); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + if (metadata->gamma <= 0.0f) { + ALOGE("received bad value for gamma %f", metadata->gamma); + return ERROR_JPEGR_INVALID_INPUT_TYPE; + } + + const string nameSpace = "http://ns.adobe.com/xap/1.0/"; + const int nameSpaceLength = nameSpace.size() + 1; // need to count the null terminator + + // calculate secondary image length first, because the length will be written into the primary + // image xmp + const string xmp_secondary = generateXmpForSecondaryImage(*metadata); + const int xmp_secondary_length = 2 /* 2 bytes representing the length of the package */ + + nameSpaceLength /* 29 bytes length of name space including \0 */ + + xmp_secondary.size(); /* length of xmp packet */ + const int secondary_image_size = 2 /* 2 bytes length of APP1 sign */ + + xmp_secondary_length + + compressed_gain_map->length; + // primary image + const string xmp_primary = generateXmpForPrimaryImage(secondary_image_size, *metadata); + // same as primary + const int xmp_primary_length = 2 + nameSpaceLength + xmp_primary.size(); + + int pos = 0; + // Begin primary image + // Write SOI + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kSOI, 1, pos)); + + // Write EXIF + if (exif != nullptr) { + const int length = 2 + exif->length; + const uint8_t lengthH = ((length >> 8) & 0xff); + const uint8_t lengthL = (length & 0xff); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kAPP1, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthH, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthL, 1, pos)); + JPEGR_CHECK(Write(dest, exif->data, exif->length, pos)); + } + + // Prepare and write XMP + { + const int length = xmp_primary_length; + const uint8_t lengthH = ((length >> 8) & 0xff); + const uint8_t lengthL = (length & 0xff); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kAPP1, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthH, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthL, 1, pos)); + JPEGR_CHECK(Write(dest, (void*)nameSpace.c_str(), nameSpaceLength, pos)); + JPEGR_CHECK(Write(dest, (void*)xmp_primary.c_str(), xmp_primary.size(), pos)); + } + + // Write ICC + if (icc != nullptr && icc_size > 0) { + const int length = icc_size + 2; + const uint8_t lengthH = ((length >> 8) & 0xff); + const uint8_t lengthL = (length & 0xff); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kAPP2, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthH, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthL, 1, pos)); + JPEGR_CHECK(Write(dest, icc, icc_size, pos)); + } + + // Prepare and write MPF + { + const int length = 2 + calculateMpfSize(); + const uint8_t lengthH = ((length >> 8) & 0xff); + const uint8_t lengthL = (length & 0xff); + int primary_image_size = pos + length + compressed_jpeg_image->length; + // between APP2 + package size + signature + // ff e2 00 58 4d 50 46 00 + // 2 + 2 + 4 = 8 (bytes) + // and ff d8 sign of the secondary image + int secondary_image_offset = primary_image_size - pos - 8; + sp<DataStruct> mpf = generateMpf(primary_image_size, + 0, /* primary_image_offset */ + secondary_image_size, + secondary_image_offset); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kAPP2, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthH, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthL, 1, pos)); + JPEGR_CHECK(Write(dest, (void*)mpf->getData(), mpf->getLength(), pos)); + } + + // Write primary image + JPEGR_CHECK(Write(dest, + (uint8_t*)compressed_jpeg_image->data + 2, compressed_jpeg_image->length - 2, pos)); + // Finish primary image + + // Begin secondary image (gain map) + // Write SOI + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kSOI, 1, pos)); + + // Prepare and write XMP + { + const int length = xmp_secondary_length; + const uint8_t lengthH = ((length >> 8) & 0xff); + const uint8_t lengthL = (length & 0xff); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kStart, 1, pos)); + JPEGR_CHECK(Write(dest, &photos_editing_formats::image_io::JpegMarker::kAPP1, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthH, 1, pos)); + JPEGR_CHECK(Write(dest, &lengthL, 1, pos)); + JPEGR_CHECK(Write(dest, (void*)nameSpace.c_str(), nameSpaceLength, pos)); + JPEGR_CHECK(Write(dest, (void*)xmp_secondary.c_str(), xmp_secondary.size(), pos)); + } + + // Write secondary image + JPEGR_CHECK(Write(dest, + (uint8_t*)compressed_gain_map->data + 2, compressed_gain_map->length - 2, pos)); + + // Set back length + dest->length = pos; + + // Done! + return NO_ERROR; +} + +status_t JpegR::toneMap(jr_uncompressed_ptr src, jr_uncompressed_ptr dest) { + if (src == nullptr || dest == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + uint16_t* src_luma_data = reinterpret_cast<uint16_t*>(src->data); + size_t src_luma_stride = src->luma_stride == 0 ? src->width : src->luma_stride; + + uint16_t* src_chroma_data; + size_t src_chroma_stride; + if (src->chroma_data == nullptr) { + src_chroma_stride = src_luma_stride; + src_chroma_data = &reinterpret_cast<uint16_t*>(src->data)[src_luma_stride * src->height]; + } else { + src_chroma_stride = src->chroma_stride; + src_chroma_data = reinterpret_cast<uint16_t*>(src->chroma_data); + } + dest->width = src->width; + dest->height = src->height; + + size_t dest_luma_pixel_count = dest->width * dest->height; + + for (size_t y = 0; y < src->height; ++y) { + for (size_t x = 0; x < src->width; ++x) { + size_t src_y_idx = y * src_luma_stride + x; + size_t src_u_idx = (y >> 1) * src_chroma_stride + (x & ~0x1); + size_t src_v_idx = src_u_idx + 1; + + uint16_t y_uint = src_luma_data[src_y_idx] >> 6; + uint16_t u_uint = src_chroma_data[src_u_idx] >> 6; + uint16_t v_uint = src_chroma_data[src_v_idx] >> 6; + + size_t dest_y_idx = x + y * dest->width; + size_t dest_uv_idx = x / 2 + (y / 2) * (dest->width / 2); + + uint8_t* y = &reinterpret_cast<uint8_t*>(dest->data)[dest_y_idx]; + uint8_t* u = &reinterpret_cast<uint8_t*>(dest->data)[dest_luma_pixel_count + dest_uv_idx]; + uint8_t* v = &reinterpret_cast<uint8_t*>( + dest->data)[dest_luma_pixel_count * 5 / 4 + dest_uv_idx]; + + *y = static_cast<uint8_t>((y_uint >> 2) & 0xff); + *u = static_cast<uint8_t>((u_uint >> 2) & 0xff); + *v = static_cast<uint8_t>((v_uint >> 2) & 0xff); + } + } + + dest->colorGamut = src->colorGamut; + + return NO_ERROR; +} + +status_t JpegR::convertYuv(jr_uncompressed_ptr image, + ultrahdr_color_gamut src_encoding, + ultrahdr_color_gamut dest_encoding) { + if (image == nullptr) { + return ERROR_JPEGR_INVALID_NULL_PTR; + } + + if (src_encoding == ULTRAHDR_COLORGAMUT_UNSPECIFIED + || dest_encoding == ULTRAHDR_COLORGAMUT_UNSPECIFIED) { + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + + ColorTransformFn conversionFn = nullptr; + switch (src_encoding) { + case ULTRAHDR_COLORGAMUT_BT709: + switch (dest_encoding) { + case ULTRAHDR_COLORGAMUT_BT709: + return NO_ERROR; + case ULTRAHDR_COLORGAMUT_P3: + conversionFn = yuv709To601; + break; + case ULTRAHDR_COLORGAMUT_BT2100: + conversionFn = yuv709To2100; + break; + default: + // Should be impossible to hit after input validation + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + break; + case ULTRAHDR_COLORGAMUT_P3: + switch (dest_encoding) { + case ULTRAHDR_COLORGAMUT_BT709: + conversionFn = yuv601To709; + break; + case ULTRAHDR_COLORGAMUT_P3: + return NO_ERROR; + case ULTRAHDR_COLORGAMUT_BT2100: + conversionFn = yuv601To2100; + break; + default: + // Should be impossible to hit after input validation + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + break; + case ULTRAHDR_COLORGAMUT_BT2100: + switch (dest_encoding) { + case ULTRAHDR_COLORGAMUT_BT709: + conversionFn = yuv2100To709; + break; + case ULTRAHDR_COLORGAMUT_P3: + conversionFn = yuv2100To601; + break; + case ULTRAHDR_COLORGAMUT_BT2100: + return NO_ERROR; + default: + // Should be impossible to hit after input validation + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + break; + default: + // Should be impossible to hit after input validation + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + + if (conversionFn == nullptr) { + // Should be impossible to hit after input validation + return ERROR_JPEGR_INVALID_COLORGAMUT; + } + + for (size_t y = 0; y < image->height / 2; ++y) { + for (size_t x = 0; x < image->width / 2; ++x) { + transformYuv420(image, x, y, conversionFn); + } + } + + return NO_ERROR; +} + +} // namespace android::ultrahdr |