chromium/third_party/pdfium/core/fpdfapi/page/cpdf_sampledfunc.cpp

// Copyright 2017 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "core/fpdfapi/page/cpdf_sampledfunc.h"

#include <algorithm>
#include <utility>

#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fpdfapi/parser/cpdf_stream_acc.h"
#include "core/fxcrt/cfx_bitstream.h"
#include "core/fxcrt/compiler_specific.h"
#include "core/fxcrt/fx_memory_wrappers.h"
#include "core/fxcrt/fx_safe_types.h"
#include "third_party/abseil-cpp/absl/container/inlined_vector.h"

namespace {

// See PDF Reference 1.7, page 170, table 3.36.
bool IsValidBitsPerSample(uint32_t x) { … }

}  // namespace

CPDF_SampledFunc::CPDF_SampledFunc() : … { … }

CPDF_SampledFunc::~CPDF_SampledFunc() = default;

bool CPDF_SampledFunc::v_Init(const CPDF_Object* pObj, VisitedSet* pVisited) { … }

bool CPDF_SampledFunc::v_Call(pdfium::span<const float> inputs,
                              pdfium::span<float> results) const { … }

#if defined(PDF_USE_SKIA)
RetainPtr<CPDF_StreamAcc> CPDF_SampledFunc::GetSampleStream() const { … }
#endif