blob: 763a4e562a2945b81b3129e0e08acf42853d65a5 [file] [log] [blame] [edit]
// Copyright 2016 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/fxge/win32/cpsoutput.h"
#include <algorithm>
#include "core/fxcrt/fx_system.h"
#include "third_party/base/span.h"
CPSOutput::CPSOutput(HDC hDC, OutputMode mode) : m_hDC(hDC), m_mode(mode) {}
CPSOutput::~CPSOutput() = default;
bool CPSOutput::WriteBlock(pdfium::span<const uint8_t> input) {
while (!input.empty()) {
uint8_t buffer[1026];
size_t send_len = std::min<size_t>(input.size(), 1024);
*(reinterpret_cast<uint16_t*>(buffer)) = static_cast<uint16_t>(send_len);
memcpy(buffer + 2, input.data(), send_len);
switch (m_mode) {
case OutputMode::kExtEscape:
ExtEscape(m_hDC, PASSTHROUGH, static_cast<int>(send_len + 2),
reinterpret_cast<const char*>(buffer), 0, nullptr);
break;
case OutputMode::kGdiComment:
GdiComment(m_hDC, static_cast<UINT>(send_len + 2), buffer);
break;
}
input = input.subspan(send_len);
}
return true;
}