1 // Copyright 2017 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "core/fxge/dib/cfx_bitmapstorer.h"
8
9 #include <string.h>
10
11 #include <utility>
12
13 #include "core/fxcrt/span_util.h"
14 #include "core/fxge/dib/cfx_dibitmap.h"
15 #include "third_party/base/check_op.h"
16
17 CFX_BitmapStorer::CFX_BitmapStorer() = default;
18
19 CFX_BitmapStorer::~CFX_BitmapStorer() = default;
20
Detach()21 RetainPtr<CFX_DIBitmap> CFX_BitmapStorer::Detach() {
22 return std::move(m_pBitmap);
23 }
24
Replace(RetainPtr<CFX_DIBitmap> && pBitmap)25 void CFX_BitmapStorer::Replace(RetainPtr<CFX_DIBitmap>&& pBitmap) {
26 m_pBitmap = std::move(pBitmap);
27 }
28
ComposeScanline(int line,pdfium::span<const uint8_t> scanline)29 void CFX_BitmapStorer::ComposeScanline(int line,
30 pdfium::span<const uint8_t> scanline) {
31 pdfium::span<uint8_t> dest_buf = m_pBitmap->GetWritableScanline(line);
32 if (!dest_buf.empty())
33 fxcrt::spancpy(dest_buf, scanline);
34 }
35
SetInfo(int width,int height,FXDIB_Format src_format,pdfium::span<const uint32_t> src_palette)36 bool CFX_BitmapStorer::SetInfo(int width,
37 int height,
38 FXDIB_Format src_format,
39 pdfium::span<const uint32_t> src_palette) {
40 DCHECK_NE(src_format, FXDIB_Format::k1bppMask);
41 DCHECK_NE(src_format, FXDIB_Format::k1bppRgb);
42 auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
43 if (!pBitmap->Create(width, height, src_format))
44 return false;
45
46 if (!src_palette.empty())
47 pBitmap->SetPalette(src_palette);
48
49 m_pBitmap = std::move(pBitmap);
50 return true;
51 }
52