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-rw-r--r--core/fxge/dib/cfx_bitmapcomposer.cpp (renamed from core/fxge/dib/fx_dib_composite.cpp)5
-rw-r--r--core/fxge/dib/cfx_bitmapcomposer.h81
-rw-r--r--core/fxge/dib/cfx_bitmapstorer.cpp56
-rw-r--r--core/fxge/dib/cfx_bitmapstorer.h41
-rw-r--r--core/fxge/dib/cfx_dibsource.cpp2
-rw-r--r--core/fxge/dib/cfx_imagerenderer.cpp1
-rw-r--r--core/fxge/dib/cfx_imagerenderer.h1
-rw-r--r--core/fxge/dib/cfx_imagestretcher.cpp184
-rw-r--r--core/fxge/dib/cfx_imagestretcher.h55
-rw-r--r--core/fxge/dib/cfx_imagetransformer.cpp1
-rw-r--r--core/fxge/dib/cfx_imagetransformer.h1
-rw-r--r--core/fxge/dib/fx_dib_engine.cpp172
-rw-r--r--core/fxge/dib/fx_dib_main.cpp46
13 files changed, 426 insertions, 220 deletions
diff --git a/core/fxge/dib/fx_dib_composite.cpp b/core/fxge/dib/cfx_bitmapcomposer.cpp
index e7912e5a1b..7124ba9d46 100644
--- a/core/fxge/dib/fx_dib_composite.cpp
+++ b/core/fxge/dib/cfx_bitmapcomposer.cpp
@@ -1,13 +1,14 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
+// Copyright 2017 PDFium Authors. All rights reserved.
// 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 <algorithm>
+#include "core/fxge/dib/cfx_bitmapcomposer.h"
#include "core/fxcodec/fx_codec.h"
#include "core/fxge/cfx_gemodule.h"
+#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/ge/cfx_cliprgn.h"
CFX_BitmapComposer::CFX_BitmapComposer() {
diff --git a/core/fxge/dib/cfx_bitmapcomposer.h b/core/fxge/dib/cfx_bitmapcomposer.h
new file mode 100644
index 0000000000..eeca80ed55
--- /dev/null
+++ b/core/fxge/dib/cfx_bitmapcomposer.h
@@ -0,0 +1,81 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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
+
+#ifndef CORE_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
+#define CORE_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
+
+#include "core/fxcrt/cfx_retain_ptr.h"
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxge/dib/cfx_scanlinecompositor.h"
+#include "core/fxge/fx_dib.h"
+
+class CFX_ClipRgn;
+class CFX_DIBitmap;
+
+class CFX_BitmapComposer : public IFX_ScanlineComposer {
+ public:
+ CFX_BitmapComposer();
+ ~CFX_BitmapComposer() override;
+
+ void Compose(const CFX_RetainPtr<CFX_DIBitmap>& pDest,
+ const CFX_ClipRgn* pClipRgn,
+ int bitmap_alpha,
+ uint32_t mask_color,
+ FX_RECT& dest_rect,
+ bool bVertical,
+ bool bFlipX,
+ bool bFlipY,
+ bool bRgbByteOrder = false,
+ int alpha_flag = 0,
+ void* pIccTransform = nullptr,
+ int blend_type = FXDIB_BLEND_NORMAL);
+
+ // IFX_ScanlineComposer
+ bool SetInfo(int width,
+ int height,
+ FXDIB_Format src_format,
+ uint32_t* pSrcPalette) override;
+
+ void ComposeScanline(int line,
+ const uint8_t* scanline,
+ const uint8_t* scan_extra_alpha) override;
+
+ private:
+ void DoCompose(uint8_t* dest_scan,
+ const uint8_t* src_scan,
+ int dest_width,
+ const uint8_t* clip_scan,
+ const uint8_t* src_extra_alpha = nullptr,
+ uint8_t* dst_extra_alpha = nullptr);
+ void ComposeScanlineV(int line,
+ const uint8_t* scanline,
+ const uint8_t* scan_extra_alpha = nullptr);
+
+ CFX_RetainPtr<CFX_DIBitmap> m_pBitmap;
+ const CFX_ClipRgn* m_pClipRgn;
+ FXDIB_Format m_SrcFormat;
+ int m_DestLeft;
+ int m_DestTop;
+ int m_DestWidth;
+ int m_DestHeight;
+ int m_BitmapAlpha;
+ uint32_t m_MaskColor;
+ CFX_RetainPtr<CFX_DIBitmap> m_pClipMask;
+ CFX_ScanlineCompositor m_Compositor;
+ bool m_bVertical;
+ bool m_bFlipX;
+ bool m_bFlipY;
+ int m_AlphaFlag;
+ void* m_pIccTransform;
+ bool m_bRgbByteOrder;
+ int m_BlendType;
+ uint8_t* m_pScanlineV;
+ uint8_t* m_pClipScanV;
+ uint8_t* m_pAddClipScan;
+ uint8_t* m_pScanlineAlphaV;
+};
+
+#endif // CORE_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
diff --git a/core/fxge/dib/cfx_bitmapstorer.cpp b/core/fxge/dib/cfx_bitmapstorer.cpp
new file mode 100644
index 0000000000..ac876b16b7
--- /dev/null
+++ b/core/fxge/dib/cfx_bitmapstorer.cpp
@@ -0,0 +1,56 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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/dib/cfx_bitmapstorer.h"
+
+#include <utility>
+
+#include "core/fxge/dib/dib_int.h"
+#include "third_party/base/ptr_util.h"
+
+CFX_BitmapStorer::CFX_BitmapStorer() {}
+
+CFX_BitmapStorer::~CFX_BitmapStorer() {}
+
+CFX_RetainPtr<CFX_DIBitmap> CFX_BitmapStorer::Detach() {
+ return std::move(m_pBitmap);
+}
+
+void CFX_BitmapStorer::Replace(CFX_RetainPtr<CFX_DIBitmap>&& pBitmap) {
+ m_pBitmap = std::move(pBitmap);
+}
+
+void CFX_BitmapStorer::ComposeScanline(int line,
+ const uint8_t* scanline,
+ const uint8_t* scan_extra_alpha) {
+ uint8_t* dest_buf = const_cast<uint8_t*>(m_pBitmap->GetScanline(line));
+ uint8_t* dest_alpha_buf =
+ m_pBitmap->m_pAlphaMask
+ ? const_cast<uint8_t*>(m_pBitmap->m_pAlphaMask->GetScanline(line))
+ : nullptr;
+ if (dest_buf)
+ FXSYS_memcpy(dest_buf, scanline, m_pBitmap->GetPitch());
+
+ if (dest_alpha_buf) {
+ FXSYS_memcpy(dest_alpha_buf, scan_extra_alpha,
+ m_pBitmap->m_pAlphaMask->GetPitch());
+ }
+}
+
+bool CFX_BitmapStorer::SetInfo(int width,
+ int height,
+ FXDIB_Format src_format,
+ uint32_t* pSrcPalette) {
+ auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
+ if (!pBitmap->Create(width, height, src_format))
+ return false;
+
+ if (pSrcPalette)
+ pBitmap->SetPalette(pSrcPalette);
+
+ m_pBitmap = std::move(pBitmap);
+ return true;
+}
diff --git a/core/fxge/dib/cfx_bitmapstorer.h b/core/fxge/dib/cfx_bitmapstorer.h
new file mode 100644
index 0000000000..478d9f7f64
--- /dev/null
+++ b/core/fxge/dib/cfx_bitmapstorer.h
@@ -0,0 +1,41 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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
+
+#ifndef CORE_FXGE_DIB_CFX_BITMAPSTORER_H_
+#define CORE_FXGE_DIB_CFX_BITMAPSTORER_H_
+
+#include <memory>
+#include <vector>
+
+#include "core/fxcrt/cfx_retain_ptr.h"
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxge/dib/cfx_dibitmap.h"
+#include "core/fxge/fx_dib.h"
+#include "third_party/base/stl_util.h"
+
+class CFX_BitmapStorer : public IFX_ScanlineComposer {
+ public:
+ CFX_BitmapStorer();
+ ~CFX_BitmapStorer() override;
+
+ // IFX_ScanlineComposer
+ void ComposeScanline(int line,
+ const uint8_t* scanline,
+ const uint8_t* scan_extra_alpha) override;
+ bool SetInfo(int width,
+ int height,
+ FXDIB_Format src_format,
+ uint32_t* pSrcPalette) override;
+
+ CFX_RetainPtr<CFX_DIBitmap> GetBitmap() { return m_pBitmap; }
+ CFX_RetainPtr<CFX_DIBitmap> Detach();
+ void Replace(CFX_RetainPtr<CFX_DIBitmap>&& pBitmap);
+
+ private:
+ CFX_RetainPtr<CFX_DIBitmap> m_pBitmap;
+};
+
+#endif // CORE_FXGE_DIB_CFX_BITMAPSTORER_H_
diff --git a/core/fxge/dib/cfx_dibsource.cpp b/core/fxge/dib/cfx_dibsource.cpp
index f1ea4adfa9..4cdedd1051 100644
--- a/core/fxge/dib/cfx_dibsource.cpp
+++ b/core/fxge/dib/cfx_dibsource.cpp
@@ -10,7 +10,9 @@
#include <memory>
#include <utility>
+#include "core/fxge/dib/cfx_bitmapstorer.h"
#include "core/fxge/dib/cfx_dibitmap.h"
+#include "core/fxge/dib/cfx_imagestretcher.h"
#include "core/fxge/dib/cfx_imagetransformer.h"
#include "core/fxge/ge/cfx_cliprgn.h"
#include "third_party/base/ptr_util.h"
diff --git a/core/fxge/dib/cfx_imagerenderer.cpp b/core/fxge/dib/cfx_imagerenderer.cpp
index 9eea474352..776ba92775 100644
--- a/core/fxge/dib/cfx_imagerenderer.cpp
+++ b/core/fxge/dib/cfx_imagerenderer.cpp
@@ -8,6 +8,7 @@
#include <memory>
+#include "core/fxge/dib/cfx_imagestretcher.h"
#include "core/fxge/dib/cfx_imagetransformer.h"
#include "core/fxge/dib/dib_int.h"
#include "core/fxge/ge/cfx_cliprgn.h"
diff --git a/core/fxge/dib/cfx_imagerenderer.h b/core/fxge/dib/cfx_imagerenderer.h
index 7e78bfe752..db8bd08638 100644
--- a/core/fxge/dib/cfx_imagerenderer.h
+++ b/core/fxge/dib/cfx_imagerenderer.h
@@ -11,6 +11,7 @@
#include "core/fxcrt/cfx_retain_ptr.h"
#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxge/dib/cfx_bitmapcomposer.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/dib/cfx_dibsource.h"
#include "core/fxge/fx_dib.h"
diff --git a/core/fxge/dib/cfx_imagestretcher.cpp b/core/fxge/dib/cfx_imagestretcher.cpp
new file mode 100644
index 0000000000..799b44432f
--- /dev/null
+++ b/core/fxge/dib/cfx_imagestretcher.cpp
@@ -0,0 +1,184 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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/dib/cfx_imagestretcher.h"
+
+#include <climits>
+
+#include "core/fxge/dib/dib_int.h"
+#include "core/fxge/fx_dib.h"
+#include "third_party/base/ptr_util.h"
+
+namespace {
+
+bool SourceSizeWithinLimit(int width, int height) {
+ const int kMaxProgressiveStretchPixels = 1000000;
+ return !height || width < kMaxProgressiveStretchPixels / height;
+}
+
+FXDIB_Format GetStretchedFormat(const CFX_DIBSource& src) {
+ FXDIB_Format format = src.GetFormat();
+ if (format == FXDIB_1bppMask)
+ return FXDIB_8bppMask;
+ if (format == FXDIB_1bppRgb)
+ return FXDIB_8bppRgb;
+ if (format == FXDIB_8bppRgb && src.GetPalette())
+ return FXDIB_Rgb;
+ return format;
+}
+
+} // namespace
+
+CFX_ImageStretcher::CFX_ImageStretcher(
+ IFX_ScanlineComposer* pDest,
+ const CFX_RetainPtr<CFX_DIBSource>& pSource,
+ int dest_width,
+ int dest_height,
+ const FX_RECT& bitmap_rect,
+ uint32_t flags)
+ : m_pDest(pDest),
+ m_pSource(pSource),
+ m_Flags(flags),
+ m_bFlipX(false),
+ m_bFlipY(false),
+ m_DestWidth(dest_width),
+ m_DestHeight(dest_height),
+ m_ClipRect(bitmap_rect),
+ m_DestFormat(GetStretchedFormat(*pSource)),
+ m_DestBPP(m_DestFormat & 0xff),
+ m_LineIndex(0) {}
+
+CFX_ImageStretcher::~CFX_ImageStretcher() {}
+
+bool CFX_ImageStretcher::Start() {
+ if (m_DestWidth == 0 || m_DestHeight == 0)
+ return false;
+
+ if (m_pSource->GetFormat() == FXDIB_1bppRgb && m_pSource->GetPalette()) {
+ FX_ARGB pal[256];
+ int a0, r0, g0, b0, a1, r1, g1, b1;
+ ArgbDecode(m_pSource->GetPaletteEntry(0), a0, r0, g0, b0);
+ ArgbDecode(m_pSource->GetPaletteEntry(1), a1, r1, g1, b1);
+ for (int i = 0; i < 256; i++) {
+ int a = a0 + (a1 - a0) * i / 255;
+ int r = r0 + (r1 - r0) * i / 255;
+ int g = g0 + (g1 - g0) * i / 255;
+ int b = b0 + (b1 - b0) * i / 255;
+ pal[i] = ArgbEncode(a, r, g, b);
+ }
+ if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(), m_DestFormat,
+ pal)) {
+ return false;
+ }
+ } else if (m_pSource->GetFormat() == FXDIB_1bppCmyk &&
+ m_pSource->GetPalette()) {
+ FX_CMYK pal[256];
+ int c0, m0, y0, k0, c1, m1, y1, k1;
+ CmykDecode(m_pSource->GetPaletteEntry(0), c0, m0, y0, k0);
+ CmykDecode(m_pSource->GetPaletteEntry(1), c1, m1, y1, k1);
+ for (int i = 0; i < 256; i++) {
+ int c = c0 + (c1 - c0) * i / 255;
+ int m = m0 + (m1 - m0) * i / 255;
+ int y = y0 + (y1 - y0) * i / 255;
+ int k = k0 + (k1 - k0) * i / 255;
+ pal[i] = CmykEncode(c, m, y, k);
+ }
+ if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(), m_DestFormat,
+ pal)) {
+ return false;
+ }
+ } else if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(),
+ m_DestFormat, nullptr)) {
+ return false;
+ }
+
+ if (m_Flags & FXDIB_DOWNSAMPLE)
+ return StartQuickStretch();
+ return StartStretch();
+}
+
+bool CFX_ImageStretcher::Continue(IFX_Pause* pPause) {
+ if (m_Flags & FXDIB_DOWNSAMPLE)
+ return ContinueQuickStretch(pPause);
+ return ContinueStretch(pPause);
+}
+
+bool CFX_ImageStretcher::StartStretch() {
+ m_pStretchEngine = pdfium::MakeUnique<CStretchEngine>(
+ m_pDest, m_DestFormat, m_DestWidth, m_DestHeight, m_ClipRect, m_pSource,
+ m_Flags);
+ m_pStretchEngine->StartStretchHorz();
+ if (SourceSizeWithinLimit(m_pSource->GetWidth(), m_pSource->GetHeight())) {
+ m_pStretchEngine->Continue(nullptr);
+ return false;
+ }
+ return true;
+}
+
+bool CFX_ImageStretcher::ContinueStretch(IFX_Pause* pPause) {
+ return m_pStretchEngine && m_pStretchEngine->Continue(pPause);
+}
+
+bool CFX_ImageStretcher::StartQuickStretch() {
+ if (m_DestWidth < 0) {
+ m_bFlipX = true;
+ m_DestWidth = -m_DestWidth;
+ }
+ if (m_DestHeight < 0) {
+ m_bFlipY = true;
+ m_DestHeight = -m_DestHeight;
+ }
+ uint32_t size = m_ClipRect.Width();
+ if (size && m_DestBPP > static_cast<int>(INT_MAX / size))
+ return false;
+
+ size *= m_DestBPP;
+ m_pScanline.reset(FX_Alloc(uint8_t, (size / 8 + 3) / 4 * 4));
+ if (m_pSource->m_pAlphaMask)
+ m_pMaskScanline.reset(FX_Alloc(uint8_t, (m_ClipRect.Width() + 3) / 4 * 4));
+
+ if (SourceSizeWithinLimit(m_pSource->GetWidth(), m_pSource->GetHeight())) {
+ ContinueQuickStretch(nullptr);
+ return false;
+ }
+ return true;
+}
+
+bool CFX_ImageStretcher::ContinueQuickStretch(IFX_Pause* pPause) {
+ if (!m_pScanline)
+ return false;
+
+ int result_width = m_ClipRect.Width();
+ int result_height = m_ClipRect.Height();
+ int src_height = m_pSource->GetHeight();
+ for (; m_LineIndex < result_height; m_LineIndex++) {
+ int dest_y;
+ int src_y;
+ if (m_bFlipY) {
+ dest_y = result_height - m_LineIndex - 1;
+ src_y = (m_DestHeight - (dest_y + m_ClipRect.top) - 1) * src_height /
+ m_DestHeight;
+ } else {
+ dest_y = m_LineIndex;
+ src_y = (dest_y + m_ClipRect.top) * src_height / m_DestHeight;
+ }
+ src_y = pdfium::clamp(src_y, 0, src_height - 1);
+
+ if (m_pSource->SkipToScanline(src_y, pPause))
+ return true;
+
+ m_pSource->DownSampleScanline(src_y, m_pScanline.get(), m_DestBPP,
+ m_DestWidth, m_bFlipX, m_ClipRect.left,
+ result_width);
+ if (m_pMaskScanline) {
+ m_pSource->m_pAlphaMask->DownSampleScanline(
+ src_y, m_pMaskScanline.get(), 1, m_DestWidth, m_bFlipX,
+ m_ClipRect.left, result_width);
+ }
+ m_pDest->ComposeScanline(dest_y, m_pScanline.get(), m_pMaskScanline.get());
+ }
+ return false;
+}
diff --git a/core/fxge/dib/cfx_imagestretcher.h b/core/fxge/dib/cfx_imagestretcher.h
new file mode 100644
index 0000000000..785ef9b6cc
--- /dev/null
+++ b/core/fxge/dib/cfx_imagestretcher.h
@@ -0,0 +1,55 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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
+
+#ifndef CORE_FXGE_DIB_CFX_IMAGESTRETCHER_H_
+#define CORE_FXGE_DIB_CFX_IMAGESTRETCHER_H_
+
+#include <memory>
+
+#include "core/fxcrt/cfx_retain_ptr.h"
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxge/fx_dib.h"
+
+class CFX_DIBSource;
+
+class CFX_ImageStretcher {
+ public:
+ CFX_ImageStretcher(IFX_ScanlineComposer* pDest,
+ const CFX_RetainPtr<CFX_DIBSource>& pSource,
+ int dest_width,
+ int dest_height,
+ const FX_RECT& bitmap_rect,
+ uint32_t flags);
+ ~CFX_ImageStretcher();
+
+ bool Start();
+ bool Continue(IFX_Pause* pPause);
+
+ CFX_RetainPtr<CFX_DIBSource> source() { return m_pSource; }
+
+ private:
+ bool StartQuickStretch();
+ bool StartStretch();
+ bool ContinueQuickStretch(IFX_Pause* pPause);
+ bool ContinueStretch(IFX_Pause* pPause);
+
+ IFX_ScanlineComposer* const m_pDest;
+ CFX_RetainPtr<CFX_DIBSource> m_pSource;
+ std::unique_ptr<CStretchEngine> m_pStretchEngine;
+ std::unique_ptr<uint8_t, FxFreeDeleter> m_pScanline;
+ std::unique_ptr<uint8_t, FxFreeDeleter> m_pMaskScanline;
+ const uint32_t m_Flags;
+ bool m_bFlipX;
+ bool m_bFlipY;
+ int m_DestWidth;
+ int m_DestHeight;
+ FX_RECT m_ClipRect;
+ const FXDIB_Format m_DestFormat;
+ const int m_DestBPP;
+ int m_LineIndex;
+};
+
+#endif // CORE_FXGE_DIB_CFX_IMAGESTRETCHER_H_
diff --git a/core/fxge/dib/cfx_imagetransformer.cpp b/core/fxge/dib/cfx_imagetransformer.cpp
index 7a519adebf..d8159aabb5 100644
--- a/core/fxge/dib/cfx_imagetransformer.cpp
+++ b/core/fxge/dib/cfx_imagetransformer.cpp
@@ -9,6 +9,7 @@
#include <memory>
#include <utility>
+#include "core/fxge/dib/cfx_imagestretcher.h"
#include "core/fxge/fx_dib.h"
#include "third_party/base/ptr_util.h"
diff --git a/core/fxge/dib/cfx_imagetransformer.h b/core/fxge/dib/cfx_imagetransformer.h
index 0183a2fab1..1354c9099a 100644
--- a/core/fxge/dib/cfx_imagetransformer.h
+++ b/core/fxge/dib/cfx_imagetransformer.h
@@ -11,6 +11,7 @@
#include "core/fxcrt/cfx_retain_ptr.h"
#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxge/dib/cfx_bitmapstorer.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/dib/cfx_dibsource.h"
#include "core/fxge/dib/dib_int.h"
diff --git a/core/fxge/dib/fx_dib_engine.cpp b/core/fxge/dib/fx_dib_engine.cpp
index 7aa710b795..d304a56600 100644
--- a/core/fxge/dib/fx_dib_engine.cpp
+++ b/core/fxge/dib/fx_dib_engine.cpp
@@ -13,26 +13,6 @@
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
-namespace {
-
-bool SourceSizeWithinLimit(int width, int height) {
- const int kMaxProgressiveStretchPixels = 1000000;
- return !height || width < kMaxProgressiveStretchPixels / height;
-}
-
-FXDIB_Format GetStretchedFormat(const CFX_DIBSource& src) {
- FXDIB_Format format = src.GetFormat();
- if (format == FXDIB_1bppMask)
- return FXDIB_8bppMask;
- if (format == FXDIB_1bppRgb)
- return FXDIB_8bppRgb;
- if (format == FXDIB_8bppRgb && src.GetPalette())
- return FXDIB_Rgb;
- return format;
-}
-
-} // namespace
-
CWeightTable::CWeightTable()
: m_DestMin(0),
m_ItemSize(0),
@@ -851,155 +831,3 @@ void CStretchEngine::StretchVert() {
m_pDestMaskScanline);
}
}
-
-CFX_ImageStretcher::CFX_ImageStretcher(
- IFX_ScanlineComposer* pDest,
- const CFX_RetainPtr<CFX_DIBSource>& pSource,
- int dest_width,
- int dest_height,
- const FX_RECT& bitmap_rect,
- uint32_t flags)
- : m_pDest(pDest),
- m_pSource(pSource),
- m_Flags(flags),
- m_bFlipX(false),
- m_bFlipY(false),
- m_DestWidth(dest_width),
- m_DestHeight(dest_height),
- m_ClipRect(bitmap_rect),
- m_DestFormat(GetStretchedFormat(*pSource)),
- m_DestBPP(m_DestFormat & 0xff),
- m_LineIndex(0) {}
-
-CFX_ImageStretcher::~CFX_ImageStretcher() {
-}
-
-bool CFX_ImageStretcher::Start() {
- if (m_DestWidth == 0 || m_DestHeight == 0)
- return false;
-
- if (m_pSource->GetFormat() == FXDIB_1bppRgb && m_pSource->GetPalette()) {
- FX_ARGB pal[256];
- int a0, r0, g0, b0, a1, r1, g1, b1;
- ArgbDecode(m_pSource->GetPaletteEntry(0), a0, r0, g0, b0);
- ArgbDecode(m_pSource->GetPaletteEntry(1), a1, r1, g1, b1);
- for (int i = 0; i < 256; i++) {
- int a = a0 + (a1 - a0) * i / 255;
- int r = r0 + (r1 - r0) * i / 255;
- int g = g0 + (g1 - g0) * i / 255;
- int b = b0 + (b1 - b0) * i / 255;
- pal[i] = ArgbEncode(a, r, g, b);
- }
- if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(), m_DestFormat,
- pal)) {
- return false;
- }
- } else if (m_pSource->GetFormat() == FXDIB_1bppCmyk &&
- m_pSource->GetPalette()) {
- FX_CMYK pal[256];
- int c0, m0, y0, k0, c1, m1, y1, k1;
- CmykDecode(m_pSource->GetPaletteEntry(0), c0, m0, y0, k0);
- CmykDecode(m_pSource->GetPaletteEntry(1), c1, m1, y1, k1);
- for (int i = 0; i < 256; i++) {
- int c = c0 + (c1 - c0) * i / 255;
- int m = m0 + (m1 - m0) * i / 255;
- int y = y0 + (y1 - y0) * i / 255;
- int k = k0 + (k1 - k0) * i / 255;
- pal[i] = CmykEncode(c, m, y, k);
- }
- if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(), m_DestFormat,
- pal)) {
- return false;
- }
- } else if (!m_pDest->SetInfo(m_ClipRect.Width(), m_ClipRect.Height(),
- m_DestFormat, nullptr)) {
- return false;
- }
-
- if (m_Flags & FXDIB_DOWNSAMPLE)
- return StartQuickStretch();
- return StartStretch();
-}
-
-bool CFX_ImageStretcher::Continue(IFX_Pause* pPause) {
- if (m_Flags & FXDIB_DOWNSAMPLE)
- return ContinueQuickStretch(pPause);
- return ContinueStretch(pPause);
-}
-
-bool CFX_ImageStretcher::StartStretch() {
- m_pStretchEngine = pdfium::MakeUnique<CStretchEngine>(
- m_pDest, m_DestFormat, m_DestWidth, m_DestHeight, m_ClipRect, m_pSource,
- m_Flags);
- m_pStretchEngine->StartStretchHorz();
- if (SourceSizeWithinLimit(m_pSource->GetWidth(), m_pSource->GetHeight())) {
- m_pStretchEngine->Continue(nullptr);
- return false;
- }
- return true;
-}
-
-bool CFX_ImageStretcher::ContinueStretch(IFX_Pause* pPause) {
- return m_pStretchEngine && m_pStretchEngine->Continue(pPause);
-}
-
-bool CFX_ImageStretcher::StartQuickStretch() {
- if (m_DestWidth < 0) {
- m_bFlipX = true;
- m_DestWidth = -m_DestWidth;
- }
- if (m_DestHeight < 0) {
- m_bFlipY = true;
- m_DestHeight = -m_DestHeight;
- }
- uint32_t size = m_ClipRect.Width();
- if (size && m_DestBPP > (int)(INT_MAX / size)) {
- return false;
- }
- size *= m_DestBPP;
- m_pScanline.reset(FX_Alloc(uint8_t, (size / 8 + 3) / 4 * 4));
- if (m_pSource->m_pAlphaMask)
- m_pMaskScanline.reset(FX_Alloc(uint8_t, (m_ClipRect.Width() + 3) / 4 * 4));
-
- if (SourceSizeWithinLimit(m_pSource->GetWidth(), m_pSource->GetHeight())) {
- ContinueQuickStretch(nullptr);
- return false;
- }
- return true;
-}
-
-bool CFX_ImageStretcher::ContinueQuickStretch(IFX_Pause* pPause) {
- if (!m_pScanline)
- return false;
-
- int result_width = m_ClipRect.Width();
- int result_height = m_ClipRect.Height();
- int src_height = m_pSource->GetHeight();
- for (; m_LineIndex < result_height; m_LineIndex++) {
- int dest_y;
- int src_y;
- if (m_bFlipY) {
- dest_y = result_height - m_LineIndex - 1;
- src_y = (m_DestHeight - (dest_y + m_ClipRect.top) - 1) * src_height /
- m_DestHeight;
- } else {
- dest_y = m_LineIndex;
- src_y = (dest_y + m_ClipRect.top) * src_height / m_DestHeight;
- }
- src_y = pdfium::clamp(src_y, 0, src_height - 1);
-
- if (m_pSource->SkipToScanline(src_y, pPause))
- return true;
-
- m_pSource->DownSampleScanline(src_y, m_pScanline.get(), m_DestBPP,
- m_DestWidth, m_bFlipX, m_ClipRect.left,
- result_width);
- if (m_pMaskScanline) {
- m_pSource->m_pAlphaMask->DownSampleScanline(
- src_y, m_pMaskScanline.get(), 1, m_DestWidth, m_bFlipX,
- m_ClipRect.left, result_width);
- }
- m_pDest->ComposeScanline(dest_y, m_pScanline.get(), m_pMaskScanline.get());
- }
- return false;
-}
diff --git a/core/fxge/dib/fx_dib_main.cpp b/core/fxge/dib/fx_dib_main.cpp
index f3716c36b1..1214cc1f16 100644
--- a/core/fxge/dib/fx_dib_main.cpp
+++ b/core/fxge/dib/fx_dib_main.cpp
@@ -96,49 +96,3 @@ uint32_t ArgbEncode(int a, FX_COLORREF rgb) {
return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb),
FXSYS_GetBValue(rgb));
}
-
-CFX_BitmapStorer::CFX_BitmapStorer() {
-}
-
-CFX_BitmapStorer::~CFX_BitmapStorer() {
-}
-
-CFX_RetainPtr<CFX_DIBitmap> CFX_BitmapStorer::Detach() {
- return std::move(m_pBitmap);
-}
-
-void CFX_BitmapStorer::Replace(CFX_RetainPtr<CFX_DIBitmap>&& pBitmap) {
- m_pBitmap = std::move(pBitmap);
-}
-
-void CFX_BitmapStorer::ComposeScanline(int line,
- const uint8_t* scanline,
- const uint8_t* scan_extra_alpha) {
- uint8_t* dest_buf = const_cast<uint8_t*>(m_pBitmap->GetScanline(line));
- uint8_t* dest_alpha_buf =
- m_pBitmap->m_pAlphaMask
- ? const_cast<uint8_t*>(m_pBitmap->m_pAlphaMask->GetScanline(line))
- : nullptr;
- if (dest_buf)
- FXSYS_memcpy(dest_buf, scanline, m_pBitmap->GetPitch());
-
- if (dest_alpha_buf) {
- FXSYS_memcpy(dest_alpha_buf, scan_extra_alpha,
- m_pBitmap->m_pAlphaMask->GetPitch());
- }
-}
-
-bool CFX_BitmapStorer::SetInfo(int width,
- int height,
- FXDIB_Format src_format,
- uint32_t* pSrcPalette) {
- auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
- if (!pBitmap->Create(width, height, src_format))
- return false;
-
- if (pSrcPalette)
- pBitmap->SetPalette(pSrcPalette);
-
- m_pBitmap = std::move(pBitmap);
- return true;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 11:56:31 +0000