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Diffstat (limited to '')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/modular/modular_image.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/modular/modular_image.cc b/third_party/jpeg-xl/lib/jxl/modular/modular_image.cc new file mode 100644 index 0000000000..785d0c5443 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/modular/modular_image.cc @@ -0,0 +1,77 @@ +// 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/jxl/modular/modular_image.h" + +#include <sstream> + +#include "lib/jxl/base/status.h" +#include "lib/jxl/common.h" +#include "lib/jxl/modular/transform/transform.h" + +namespace jxl { + +void Image::undo_transforms(const weighted::Header &wp_header, + jxl::ThreadPool *pool) { + while (!transform.empty()) { + Transform t = transform.back(); + JXL_DEBUG_V(4, "Undoing transform"); + Status result = t.Inverse(*this, wp_header, pool); + if (result == false) { + JXL_NOTIFY_ERROR("Error while undoing transform."); + error = true; + return; + } + JXL_DEBUG_V(8, "Undoing transform: done"); + transform.pop_back(); + } +} + +Image::Image(size_t iw, size_t ih, int bitdepth, int nb_chans) + : w(iw), h(ih), bitdepth(bitdepth), nb_meta_channels(0), error(false) { + for (int i = 0; i < nb_chans; i++) channel.emplace_back(Channel(iw, ih)); +} + +Image::Image() : w(0), h(0), bitdepth(8), nb_meta_channels(0), error(true) {} + +Image &Image::operator=(Image &&other) noexcept { + w = other.w; + h = other.h; + bitdepth = other.bitdepth; + nb_meta_channels = other.nb_meta_channels; + error = other.error; + channel = std::move(other.channel); + transform = std::move(other.transform); + return *this; +} + +Image Image::clone() { + Image c(w, h, bitdepth, 0); + c.nb_meta_channels = nb_meta_channels; + c.error = error; + c.transform = transform; + for (Channel &ch : channel) { + Channel a(ch.w, ch.h, ch.hshift, ch.vshift); + CopyImageTo(ch.plane, &a.plane); + c.channel.push_back(std::move(a)); + } + return c; +} + +std::string Image::DebugString() const { + std::ostringstream os; + os << w << "x" << h << ", depth: " << bitdepth; + if (!channel.empty()) { + os << ", channels:"; + for (size_t i = 0; i < channel.size(); ++i) { + os << " " << channel[i].w << "x" << channel[i].h + << "(shift: " << channel[i].hshift << "," << channel[i].vshift << ")"; + if (i < nb_meta_channels) os << "*"; + } + } + return os.str(); +} + +} // namespace jxl |