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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /third_party/jpeg-xl/lib/extras/dec/jpegli.cc
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/jpeg-xl/lib/extras/dec/jpegli.cc')
-rw-r--r--third_party/jpeg-xl/lib/extras/dec/jpegli.cc271
1 files changed, 271 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/extras/dec/jpegli.cc b/third_party/jpeg-xl/lib/extras/dec/jpegli.cc
new file mode 100644
index 0000000000..ffa1b79c25
--- /dev/null
+++ b/third_party/jpeg-xl/lib/extras/dec/jpegli.cc
@@ -0,0 +1,271 @@
+// 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.
+
+#include "lib/extras/dec/jpegli.h"
+
+#include <setjmp.h>
+#include <stdint.h>
+
+#include <algorithm>
+#include <numeric>
+#include <utility>
+#include <vector>
+
+#include "lib/jpegli/decode.h"
+#include "lib/jxl/base/status.h"
+#include "lib/jxl/sanitizers.h"
+
+namespace jxl {
+namespace extras {
+
+namespace {
+
+constexpr unsigned char kExifSignature[6] = {0x45, 0x78, 0x69,
+ 0x66, 0x00, 0x00};
+constexpr int kExifMarker = JPEG_APP0 + 1;
+constexpr int kICCMarker = JPEG_APP0 + 2;
+
+static inline bool IsJPG(const std::vector<uint8_t>& bytes) {
+ if (bytes.size() < 2) return false;
+ if (bytes[0] != 0xFF || bytes[1] != 0xD8) return false;
+ return true;
+}
+
+bool MarkerIsExif(const jpeg_saved_marker_ptr marker) {
+ return marker->marker == kExifMarker &&
+ marker->data_length >= sizeof kExifSignature + 2 &&
+ std::equal(std::begin(kExifSignature), std::end(kExifSignature),
+ marker->data);
+}
+
+Status ReadICCProfile(jpeg_decompress_struct* const cinfo,
+ std::vector<uint8_t>* const icc) {
+ uint8_t* icc_data_ptr;
+ unsigned int icc_data_len;
+ if (jpegli_read_icc_profile(cinfo, &icc_data_ptr, &icc_data_len)) {
+ icc->assign(icc_data_ptr, icc_data_ptr + icc_data_len);
+ free(icc_data_ptr);
+ return true;
+ }
+ return false;
+}
+
+void ReadExif(jpeg_decompress_struct* const cinfo,
+ std::vector<uint8_t>* const exif) {
+ constexpr size_t kExifSignatureSize = sizeof kExifSignature;
+ for (jpeg_saved_marker_ptr marker = cinfo->marker_list; marker != nullptr;
+ marker = marker->next) {
+ // marker is initialized by libjpeg, which we are not instrumenting with
+ // msan.
+ msan::UnpoisonMemory(marker, sizeof(*marker));
+ msan::UnpoisonMemory(marker->data, marker->data_length);
+ if (!MarkerIsExif(marker)) continue;
+ size_t marker_length = marker->data_length - kExifSignatureSize;
+ exif->resize(marker_length);
+ std::copy_n(marker->data + kExifSignatureSize, marker_length, exif->data());
+ return;
+ }
+}
+
+JpegliDataType ConvertDataType(JxlDataType type) {
+ switch (type) {
+ case JXL_TYPE_UINT8:
+ return JPEGLI_TYPE_UINT8;
+ case JXL_TYPE_UINT16:
+ return JPEGLI_TYPE_UINT16;
+ case JXL_TYPE_FLOAT:
+ return JPEGLI_TYPE_FLOAT;
+ default:
+ return JPEGLI_TYPE_UINT8;
+ }
+}
+
+JpegliEndianness ConvertEndianness(JxlEndianness type) {
+ switch (type) {
+ case JXL_NATIVE_ENDIAN:
+ return JPEGLI_NATIVE_ENDIAN;
+ case JXL_BIG_ENDIAN:
+ return JPEGLI_BIG_ENDIAN;
+ case JXL_LITTLE_ENDIAN:
+ return JPEGLI_LITTLE_ENDIAN;
+ default:
+ return JPEGLI_NATIVE_ENDIAN;
+ }
+}
+
+JxlColorSpace ConvertColorSpace(J_COLOR_SPACE colorspace) {
+ switch (colorspace) {
+ case JCS_GRAYSCALE:
+ return JXL_COLOR_SPACE_GRAY;
+ case JCS_RGB:
+ return JXL_COLOR_SPACE_RGB;
+ default:
+ return JXL_COLOR_SPACE_UNKNOWN;
+ }
+}
+
+void MyErrorExit(j_common_ptr cinfo) {
+ jmp_buf* env = static_cast<jmp_buf*>(cinfo->client_data);
+ (*cinfo->err->output_message)(cinfo);
+ jpegli_destroy_decompress(reinterpret_cast<j_decompress_ptr>(cinfo));
+ longjmp(*env, 1);
+}
+
+void MyOutputMessage(j_common_ptr cinfo) {
+#if JXL_DEBUG_WARNING == 1
+ char buf[JMSG_LENGTH_MAX + 1];
+ (*cinfo->err->format_message)(cinfo, buf);
+ buf[JMSG_LENGTH_MAX] = 0;
+ JXL_WARNING("%s", buf);
+#endif
+}
+
+void UnmapColors(uint8_t* row, size_t xsize, int components,
+ JSAMPARRAY colormap, size_t num_colors) {
+ JXL_CHECK(colormap != nullptr);
+ std::vector<uint8_t> tmp(xsize * components);
+ for (size_t x = 0; x < xsize; ++x) {
+ JXL_CHECK(row[x] < num_colors);
+ for (int c = 0; c < components; ++c) {
+ tmp[x * components + c] = colormap[c][row[x]];
+ }
+ }
+ memcpy(row, tmp.data(), tmp.size());
+}
+
+} // namespace
+
+Status DecodeJpeg(const std::vector<uint8_t>& compressed,
+ const JpegDecompressParams& dparams, ThreadPool* pool,
+ PackedPixelFile* ppf) {
+ // Don't do anything for non-JPEG files (no need to report an error)
+ if (!IsJPG(compressed)) return false;
+
+ // TODO(veluca): use JPEGData also for pixels?
+
+ // We need to declare all the non-trivial destructor local variables before
+ // the call to setjmp().
+ std::unique_ptr<JSAMPLE[]> row;
+
+ jpeg_decompress_struct cinfo;
+ const auto try_catch_block = [&]() -> bool {
+ // Setup error handling in jpeg library so we can deal with broken jpegs in
+ // the fuzzer.
+ jpeg_error_mgr jerr;
+ jmp_buf env;
+ cinfo.err = jpegli_std_error(&jerr);
+ jerr.error_exit = &MyErrorExit;
+ jerr.output_message = &MyOutputMessage;
+ if (setjmp(env)) {
+ return false;
+ }
+ cinfo.client_data = static_cast<void*>(&env);
+
+ jpegli_create_decompress(&cinfo);
+ jpegli_mem_src(&cinfo,
+ reinterpret_cast<const unsigned char*>(compressed.data()),
+ compressed.size());
+ jpegli_save_markers(&cinfo, kICCMarker, 0xFFFF);
+ jpegli_save_markers(&cinfo, kExifMarker, 0xFFFF);
+ const auto failure = [&cinfo](const char* str) -> Status {
+ jpegli_abort_decompress(&cinfo);
+ jpegli_destroy_decompress(&cinfo);
+ return JXL_FAILURE("%s", str);
+ };
+ jpegli_read_header(&cinfo, TRUE);
+ // Might cause CPU-zip bomb.
+ if (cinfo.arith_code) {
+ return failure("arithmetic code JPEGs are not supported");
+ }
+ int nbcomp = cinfo.num_components;
+ if (nbcomp != 1 && nbcomp != 3) {
+ return failure("unsupported number of components in JPEG");
+ }
+ if (dparams.force_rgb) {
+ cinfo.out_color_space = JCS_RGB;
+ } else if (dparams.force_grayscale) {
+ cinfo.out_color_space = JCS_GRAYSCALE;
+ }
+ if (!ReadICCProfile(&cinfo, &ppf->icc)) {
+ ppf->icc.clear();
+ // Default to SRGB
+ ppf->color_encoding.color_space =
+ ConvertColorSpace(cinfo.out_color_space);
+ ppf->color_encoding.white_point = JXL_WHITE_POINT_D65;
+ ppf->color_encoding.primaries = JXL_PRIMARIES_SRGB;
+ ppf->color_encoding.transfer_function = JXL_TRANSFER_FUNCTION_SRGB;
+ ppf->color_encoding.rendering_intent = JXL_RENDERING_INTENT_PERCEPTUAL;
+ }
+ ReadExif(&cinfo, &ppf->metadata.exif);
+
+ ppf->info.xsize = cinfo.image_width;
+ ppf->info.ysize = cinfo.image_height;
+ if (dparams.output_data_type == JXL_TYPE_UINT8) {
+ ppf->info.bits_per_sample = 8;
+ ppf->info.exponent_bits_per_sample = 0;
+ } else if (dparams.output_data_type == JXL_TYPE_UINT16) {
+ ppf->info.bits_per_sample = 16;
+ ppf->info.exponent_bits_per_sample = 0;
+ } else if (dparams.output_data_type == JXL_TYPE_FLOAT) {
+ ppf->info.bits_per_sample = 32;
+ ppf->info.exponent_bits_per_sample = 8;
+ } else {
+ return failure("unsupported data type");
+ }
+ ppf->info.uses_original_profile = true;
+
+ // No alpha in JPG
+ ppf->info.alpha_bits = 0;
+ ppf->info.alpha_exponent_bits = 0;
+ ppf->info.orientation = JXL_ORIENT_IDENTITY;
+
+ jpegli_set_output_format(&cinfo, ConvertDataType(dparams.output_data_type),
+ ConvertEndianness(dparams.output_endianness));
+
+ if (dparams.num_colors > 0) {
+ cinfo.quantize_colors = TRUE;
+ cinfo.desired_number_of_colors = dparams.num_colors;
+ cinfo.two_pass_quantize = dparams.two_pass_quant;
+ cinfo.dither_mode = (J_DITHER_MODE)dparams.dither_mode;
+ }
+
+ jpegli_start_decompress(&cinfo);
+
+ ppf->info.num_color_channels = cinfo.out_color_components;
+ const JxlPixelFormat format{
+ /*num_channels=*/static_cast<uint32_t>(cinfo.out_color_components),
+ dparams.output_data_type,
+ dparams.output_endianness,
+ /*align=*/0,
+ };
+ ppf->frames.clear();
+ // Allocates the frame buffer.
+ ppf->frames.emplace_back(cinfo.image_width, cinfo.image_height, format);
+ const auto& frame = ppf->frames.back();
+ JXL_ASSERT(sizeof(JSAMPLE) * cinfo.out_color_components *
+ cinfo.image_width <=
+ frame.color.stride);
+
+ for (size_t y = 0; y < cinfo.image_height; ++y) {
+ JSAMPROW rows[] = {reinterpret_cast<JSAMPLE*>(
+ static_cast<uint8_t*>(frame.color.pixels()) +
+ frame.color.stride * y)};
+ jpegli_read_scanlines(&cinfo, rows, 1);
+ if (dparams.num_colors > 0) {
+ UnmapColors(rows[0], cinfo.output_width, cinfo.out_color_components,
+ cinfo.colormap, cinfo.actual_number_of_colors);
+ }
+ }
+
+ jpegli_finish_decompress(&cinfo);
+ return true;
+ };
+ bool success = try_catch_block();
+ jpegli_destroy_decompress(&cinfo);
+ return success;
+}
+
+} // namespace extras
+} // namespace jxl