37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
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// Copyright 2016 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fxge/win32/cpsoutput.h"
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#include <algorithm>
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#include "core/fxcrt/fx_system.h"
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#include "third_party/base/span.h"
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CPSOutput::CPSOutput(HDC hDC, OutputMode mode) : m_hDC(hDC), m_mode(mode) {}
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CPSOutput::~CPSOutput() = default;
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bool CPSOutput::WriteBlock(pdfium::span<const uint8_t> input) {
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while (!input.empty()) {
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uint8_t buffer[1026];
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size_t send_len = std::min<size_t>(input.size(), 1024);
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*(reinterpret_cast<uint16_t*>(buffer)) = static_cast<uint16_t>(send_len);
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memcpy(buffer + 2, input.data(), send_len);
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switch (m_mode) {
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case OutputMode::kExtEscape:
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ExtEscape(m_hDC, PASSTHROUGH, static_cast<int>(send_len + 2),
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reinterpret_cast<const char*>(buffer), 0, nullptr);
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break;
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case OutputMode::kGdiComment:
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GdiComment(m_hDC, static_cast<UINT>(send_len + 2), buffer);
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break;
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}
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input = input.subspan(send_len);
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}
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return true;
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}
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