Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 452 insertions, 0 deletions

diff --git a/third_party/jpeg-xl/lib/extras/enc/apng.cc b/third_party/jpeg-xl/lib/extras/enc/apng.cc
new file mode 100644
index 0000000000..413a9c8081
--- /dev/null
+++ b/third_party/jpeg-xl/lib/extras/enc/apng.cc
@@ -0,0 +1,452 @@
+// 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/enc/apng.h"
+
+// Parts of this code are taken from apngdis, which has the following license:
+/* APNG Disassembler 2.8
+ *
+ * Deconstructs APNG files into individual frames.
+ *
+ * http://apngdis.sourceforge.net
+ *
+ * Copyright (c) 2010-2015 Max Stepin
+ * maxst at users.sourceforge.net
+ *
+ * zlib license
+ * ------------
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ */
+
+#include <string.h>
+
+#include <string>
+#include <vector>
+
+#include "lib/extras/exif.h"
+#include "lib/jxl/base/byte_order.h"
+#include "lib/jxl/base/printf_macros.h"
+#if JPEGXL_ENABLE_APNG
+#include "png.h" /* original (unpatched) libpng is ok */
+#endif
+
+namespace jxl {
+namespace extras {
+
+#if JPEGXL_ENABLE_APNG
+namespace {
+
+constexpr unsigned char kExifSignature[6] = {0x45, 0x78, 0x69,
+                                             0x66, 0x00, 0x00};
+
+class APNGEncoder : public Encoder {
+ public:
+  std::vector<JxlPixelFormat> AcceptedFormats() const override {
+    std::vector<JxlPixelFormat> formats;
+    for (const uint32_t num_channels : {1, 2, 3, 4}) {
+      for (const JxlDataType data_type : {JXL_TYPE_UINT8, JXL_TYPE_UINT16}) {
+        for (JxlEndianness endianness : {JXL_BIG_ENDIAN, JXL_LITTLE_ENDIAN}) {
+          formats.push_back(
+              JxlPixelFormat{num_channels, data_type, endianness, /*align=*/0});
+        }
+      }
+    }
+    return formats;
+  }
+  Status Encode(const PackedPixelFile& ppf, EncodedImage* encoded_image,
+                ThreadPool* pool) const override {
+    JXL_RETURN_IF_ERROR(VerifyBasicInfo(ppf.info));
+    encoded_image->icc.clear();
+    encoded_image->bitstreams.resize(1);
+    return EncodePackedPixelFileToAPNG(ppf, pool,
+                                       &encoded_image->bitstreams.front());
+  }
+
+ private:
+  Status EncodePackedPixelFileToAPNG(const PackedPixelFile& ppf,
+                                     ThreadPool* pool,
+                                     std::vector<uint8_t>* bytes) const;
+};
+
+static void PngWrite(png_structp png_ptr, png_bytep data, png_size_t length) {
+  std::vector<uint8_t>* bytes =
+      static_cast<std::vector<uint8_t>*>(png_get_io_ptr(png_ptr));
+  bytes->insert(bytes->end(), data, data + length);
+}
+
+// Stores XMP and EXIF/IPTC into key/value strings for PNG
+class BlobsWriterPNG {
+ public:
+  static Status Encode(const PackedMetadata& blobs,
+                       std::vector<std::string>* strings) {
+    if (!blobs.exif.empty()) {
+      // PNG viewers typically ignore Exif orientation but not all of them do
+      // (and e.g. cjxl doesn't), so we overwrite the Exif orientation to the
+      // identity to avoid repeated orientation.
+      std::vector<uint8_t> exif = blobs.exif;
+      ResetExifOrientation(exif);
+      // By convention, the data is prefixed with "Exif\0\0" when stored in
+      // the legacy (and non-standard) "Raw profile type exif" text chunk
+      // currently used here.
+      // TODO(user): Store Exif data in an eXIf chunk instead, which always
+      //             begins with the TIFF header.
+      if (exif.size() >= sizeof kExifSignature &&
+          memcmp(exif.data(), kExifSignature, sizeof kExifSignature) != 0) {
+        exif.insert(exif.begin(), kExifSignature,
+                    kExifSignature + sizeof kExifSignature);
+      }
+      JXL_RETURN_IF_ERROR(EncodeBase16("exif", exif, strings));
+    }
+    if (!blobs.iptc.empty()) {
+      JXL_RETURN_IF_ERROR(EncodeBase16("iptc", blobs.iptc, strings));
+    }
+    if (!blobs.xmp.empty()) {
+      // TODO(user): Store XMP data in an "XML:com.adobe.xmp" text chunk
+      //             instead.
+      JXL_RETURN_IF_ERROR(EncodeBase16("xmp", blobs.xmp, strings));
+    }
+    return true;
+  }
+
+ private:
+  static JXL_INLINE char EncodeNibble(const uint8_t nibble) {
+    JXL_ASSERT(nibble < 16);
+    return (nibble < 10) ? '0' + nibble : 'a' + nibble - 10;
+  }
+
+  static Status EncodeBase16(const std::string& type,
+                             const std::vector<uint8_t>& bytes,
+                             std::vector<std::string>* strings) {
+    // Encoding: base16 with newline after 72 chars.
+    const size_t base16_size =
+        2 * bytes.size() + DivCeil(bytes.size(), size_t(36)) + 1;
+    std::string base16;
+    base16.reserve(base16_size);
+    for (size_t i = 0; i < bytes.size(); ++i) {
+      if (i % 36 == 0) base16.push_back('\n');
+      base16.push_back(EncodeNibble(bytes[i] >> 4));
+      base16.push_back(EncodeNibble(bytes[i] & 0x0F));
+    }
+    base16.push_back('\n');
+    JXL_ASSERT(base16.length() == base16_size);
+
+    char key[30];
+    snprintf(key, sizeof(key), "Raw profile type %s", type.c_str());
+
+    char header[30];
+    snprintf(header, sizeof(header), "\n%s\n%8" PRIuS, type.c_str(),
+             bytes.size());
+
+    strings->push_back(std::string(key));
+    strings->push_back(std::string(header) + base16);
+    return true;
+  }
+};
+
+void MaybeAddCICP(const JxlColorEncoding& c_enc, png_structp png_ptr,
+                  png_infop info_ptr) {
+  png_byte cicp_data[4] = {};
+  png_unknown_chunk cicp_chunk;
+  if (c_enc.color_space != JXL_COLOR_SPACE_RGB) {
+    return;
+  }
+  if (c_enc.primaries == JXL_PRIMARIES_P3) {
+    if (c_enc.white_point == JXL_WHITE_POINT_D65) {
+      cicp_data[0] = 12;
+    } else if (c_enc.white_point == JXL_WHITE_POINT_DCI) {
+      cicp_data[0] = 11;
+    } else {
+      return;
+    }
+  } else if (c_enc.primaries != JXL_PRIMARIES_CUSTOM &&
+             c_enc.white_point == JXL_WHITE_POINT_D65) {
+    cicp_data[0] = static_cast<png_byte>(c_enc.primaries);
+  } else {
+    return;
+  }
+  if (c_enc.transfer_function == JXL_TRANSFER_FUNCTION_UNKNOWN ||
+      c_enc.transfer_function == JXL_TRANSFER_FUNCTION_GAMMA) {
+    return;
+  }
+  cicp_data[1] = static_cast<png_byte>(c_enc.transfer_function);
+  cicp_data[2] = 0;
+  cicp_data[3] = 1;
+  cicp_chunk.data = cicp_data;
+  cicp_chunk.size = sizeof(cicp_data);
+  cicp_chunk.location = PNG_HAVE_IHDR;
+  memcpy(cicp_chunk.name, "cICP", 5);
+  png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_ALWAYS,
+                              reinterpret_cast<const png_byte*>("cICP"), 1);
+  png_set_unknown_chunks(png_ptr, info_ptr, &cicp_chunk, 1);
+}
+
+bool MaybeAddSRGB(const JxlColorEncoding& c_enc, png_structp png_ptr,
+                  png_infop info_ptr) {
+  if (c_enc.transfer_function == JXL_TRANSFER_FUNCTION_SRGB &&
+      (c_enc.color_space == JXL_COLOR_SPACE_GRAY ||
+       (c_enc.color_space == JXL_COLOR_SPACE_RGB &&
+        c_enc.primaries == JXL_PRIMARIES_SRGB &&
+        c_enc.white_point == JXL_WHITE_POINT_D65))) {
+    png_set_sRGB(png_ptr, info_ptr, c_enc.rendering_intent);
+    png_set_cHRM_fixed(png_ptr, info_ptr, 31270, 32900, 64000, 33000, 30000,
+                       60000, 15000, 6000);
+    png_set_gAMA_fixed(png_ptr, info_ptr, 45455);
+    return true;
+  }
+  return false;
+}
+
+void MaybeAddCHRM(const JxlColorEncoding& c_enc, png_structp png_ptr,
+                  png_infop info_ptr) {
+  if (c_enc.color_space != JXL_COLOR_SPACE_RGB) return;
+  if (c_enc.primaries == 0) return;
+  png_set_cHRM(png_ptr, info_ptr, c_enc.white_point_xy[0],
+               c_enc.white_point_xy[1], c_enc.primaries_red_xy[0],
+               c_enc.primaries_red_xy[1], c_enc.primaries_green_xy[0],
+               c_enc.primaries_green_xy[1], c_enc.primaries_blue_xy[0],
+               c_enc.primaries_blue_xy[1]);
+}
+
+void MaybeAddGAMA(const JxlColorEncoding& c_enc, png_structp png_ptr,
+                  png_infop info_ptr) {
+  switch (c_enc.transfer_function) {
+    case JXL_TRANSFER_FUNCTION_LINEAR:
+      png_set_gAMA_fixed(png_ptr, info_ptr, PNG_FP_1);
+      break;
+    case JXL_TRANSFER_FUNCTION_SRGB:
+      png_set_gAMA_fixed(png_ptr, info_ptr, 45455);
+      break;
+    case JXL_TRANSFER_FUNCTION_GAMMA:
+      png_set_gAMA(png_ptr, info_ptr, c_enc.gamma);
+      break;
+
+    default:;
+      // No gAMA chunk.
+  }
+}
+
+void MaybeAddCLLi(const JxlColorEncoding& c_enc, const float intensity_target,
+                  png_structp png_ptr, png_infop info_ptr) {
+  if (c_enc.transfer_function != JXL_TRANSFER_FUNCTION_PQ) return;
+
+  const uint32_t max_cll =
+      static_cast<uint32_t>(10000.f * Clamp1(intensity_target, 0.f, 10000.f));
+  png_byte chunk_data[8] = {};
+  chunk_data[0] = (max_cll >> 24) & 0xFF;
+  chunk_data[1] = (max_cll >> 16) & 0xFF;
+  chunk_data[2] = (max_cll >> 8) & 0xFF;
+  chunk_data[3] = max_cll & 0xFF;
+  // Leave MaxFALL set to 0.
+  png_unknown_chunk chunk;
+  memcpy(chunk.name, "cLLi", 5);
+  chunk.data = chunk_data;
+  chunk.size = sizeof chunk_data;
+  chunk.location = PNG_HAVE_IHDR;
+  png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_ALWAYS,
+                              reinterpret_cast<const png_byte*>("cLLi"), 1);
+  png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);
+}
+
+Status APNGEncoder::EncodePackedPixelFileToAPNG(
+    const PackedPixelFile& ppf, ThreadPool* pool,
+    std::vector<uint8_t>* bytes) const {
+  size_t xsize = ppf.info.xsize;
+  size_t ysize = ppf.info.ysize;
+  bool has_alpha = ppf.info.alpha_bits != 0;
+  bool is_gray = ppf.info.num_color_channels == 1;
+  size_t color_channels = ppf.info.num_color_channels;
+  size_t num_channels = color_channels + (has_alpha ? 1 : 0);
+  size_t num_samples = num_channels * xsize * ysize;
+
+  if (!ppf.info.have_animation && ppf.frames.size() != 1) {
+    return JXL_FAILURE("Invalid number of frames");
+  }
+
+  size_t count = 0;
+  size_t anim_chunks = 0;
+
+  for (const auto& frame : ppf.frames) {
+    JXL_RETURN_IF_ERROR(VerifyPackedImage(frame.color, ppf.info));
+
+    const PackedImage& color = frame.color;
+    const JxlPixelFormat format = color.format;
+    const uint8_t* in = reinterpret_cast<const uint8_t*>(color.pixels());
+    size_t data_bits_per_sample = PackedImage::BitsPerChannel(format.data_type);
+    size_t bytes_per_sample = data_bits_per_sample / 8;
+    size_t out_bytes_per_sample = bytes_per_sample > 1 ? 2 : 1;
+    size_t out_stride = xsize * num_channels * out_bytes_per_sample;
+    size_t out_size = ysize * out_stride;
+    std::vector<uint8_t> out(out_size);
+
+    if (format.data_type == JXL_TYPE_UINT8) {
+      if (ppf.info.bits_per_sample < 8) {
+        float mul = 255.0 / ((1u << ppf.info.bits_per_sample) - 1);
+        for (size_t i = 0; i < num_samples; ++i) {
+          out[i] = static_cast<uint8_t>(in[i] * mul + 0.5);
+        }
+      } else {
+        memcpy(&out[0], in, out_size);
+      }
+    } else if (format.data_type == JXL_TYPE_UINT16) {
+      if (ppf.info.bits_per_sample < 16 ||
+          format.endianness != JXL_BIG_ENDIAN) {
+        float mul = 65535.0 / ((1u << ppf.info.bits_per_sample) - 1);
+        const uint8_t* p_in = in;
+        uint8_t* p_out = out.data();
+        for (size_t i = 0; i < num_samples; ++i, p_in += 2, p_out += 2) {
+          uint32_t val = (format.endianness == JXL_BIG_ENDIAN ? LoadBE16(p_in)
+                                                              : LoadLE16(p_in));
+          StoreBE16(static_cast<uint32_t>(val * mul + 0.5), p_out);
+        }
+      } else {
+        memcpy(&out[0], in, out_size);
+      }
+    }
+    png_structp png_ptr;
+    png_infop info_ptr;
+
+    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+
+    if (!png_ptr) return JXL_FAILURE("Could not init png encoder");
+
+    info_ptr = png_create_info_struct(png_ptr);
+    if (!info_ptr) return JXL_FAILURE("Could not init png info struct");
+
+    png_set_write_fn(png_ptr, bytes, PngWrite, NULL);
+    png_set_flush(png_ptr, 0);
+
+    int width = xsize;
+    int height = ysize;
+
+    png_byte color_type = (is_gray ? PNG_COLOR_TYPE_GRAY : PNG_COLOR_TYPE_RGB);
+    if (has_alpha) color_type |= PNG_COLOR_MASK_ALPHA;
+    png_byte bit_depth = out_bytes_per_sample * 8;
+
+    png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, color_type,
+                 PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE,
+                 PNG_FILTER_TYPE_BASE);
+    if (count == 0) {
+      if (!ppf.icc.empty()) {
+        png_set_benign_errors(png_ptr, 1);
+        png_set_iCCP(png_ptr, info_ptr, "1", 0, ppf.icc.data(), ppf.icc.size());
+      } else if (!MaybeAddSRGB(ppf.color_encoding, png_ptr, info_ptr)) {
+        MaybeAddCICP(ppf.color_encoding, png_ptr, info_ptr);
+        MaybeAddCHRM(ppf.color_encoding, png_ptr, info_ptr);
+        MaybeAddGAMA(ppf.color_encoding, png_ptr, info_ptr);
+      }
+      MaybeAddCLLi(ppf.color_encoding, ppf.info.intensity_target, png_ptr,
+                   info_ptr);
+
+      std::vector<std::string> textstrings;
+      JXL_RETURN_IF_ERROR(BlobsWriterPNG::Encode(ppf.metadata, &textstrings));
+      for (size_t kk = 0; kk + 1 < textstrings.size(); kk += 2) {
+        png_text text;
+        text.key = const_cast<png_charp>(textstrings[kk].c_str());
+        text.text = const_cast<png_charp>(textstrings[kk + 1].c_str());
+        text.compression = PNG_TEXT_COMPRESSION_zTXt;
+        png_set_text(png_ptr, info_ptr, &text, 1);
+      }
+
+      png_write_info(png_ptr, info_ptr);
+    } else {
+      // fake writing a header, otherwise libpng gets confused
+      size_t pos = bytes->size();
+      png_write_info(png_ptr, info_ptr);
+      bytes->resize(pos);
+    }
+
+    if (ppf.info.have_animation) {
+      if (count == 0) {
+        png_byte adata[8];
+        png_save_uint_32(adata, ppf.frames.size());
+        png_save_uint_32(adata + 4, ppf.info.animation.num_loops);
+        png_byte actl[5] = "acTL";
+        png_write_chunk(png_ptr, actl, adata, 8);
+      }
+      png_byte fdata[26];
+      // TODO(jon): also make this work for the non-coalesced case
+      png_save_uint_32(fdata, anim_chunks++);
+      png_save_uint_32(fdata + 4, width);
+      png_save_uint_32(fdata + 8, height);
+      png_save_uint_32(fdata + 12, 0);
+      png_save_uint_32(fdata + 16, 0);
+      png_save_uint_16(fdata + 20, frame.frame_info.duration *
+                                       ppf.info.animation.tps_denominator);
+      png_save_uint_16(fdata + 22, ppf.info.animation.tps_numerator);
+      fdata[24] = 1;
+      fdata[25] = 0;
+      png_byte fctl[5] = "fcTL";
+      png_write_chunk(png_ptr, fctl, fdata, 26);
+    }
+
+    std::vector<uint8_t*> rows(height);
+    for (int y = 0; y < height; ++y) {
+      rows[y] = out.data() + y * out_stride;
+    }
+
+    png_write_flush(png_ptr);
+    const size_t pos = bytes->size();
+    png_write_image(png_ptr, &rows[0]);
+    png_write_flush(png_ptr);
+    if (count > 0) {
+      std::vector<uint8_t> fdata(4);
+      png_save_uint_32(fdata.data(), anim_chunks++);
+      size_t p = pos;
+      while (p + 8 < bytes->size()) {
+        size_t len = png_get_uint_32(bytes->data() + p);
+        JXL_ASSERT(bytes->operator[](p + 4) == 'I');
+        JXL_ASSERT(bytes->operator[](p + 5) == 'D');
+        JXL_ASSERT(bytes->operator[](p + 6) == 'A');
+        JXL_ASSERT(bytes->operator[](p + 7) == 'T');
+        fdata.insert(fdata.end(), bytes->data() + p + 8,
+                     bytes->data() + p + 8 + len);
+        p += len + 12;
+      }
+      bytes->resize(pos);
+
+      png_byte fdat[5] = "fdAT";
+      png_write_chunk(png_ptr, fdat, fdata.data(), fdata.size());
+    }
+
+    count++;
+    if (count == ppf.frames.size() || !ppf.info.have_animation) {
+      png_write_end(png_ptr, NULL);
+    }
+
+    png_destroy_write_struct(&png_ptr, &info_ptr);
+  }
+
+  return true;
+}
+
+}  // namespace
+#endif
+
+std::unique_ptr<Encoder> GetAPNGEncoder() {
+#if JPEGXL_ENABLE_APNG
+  return jxl::make_unique<APNGEncoder>();
+#else
+  return nullptr;
+#endif
+}
+
+}  // namespace extras
+}  // namespace jxl