Index: core/fpdfapi/fpdf_render/cpdf_type3cache.cpp |
diff --git a/core/fpdfapi/fpdf_render/cpdf_type3cache.cpp b/core/fpdfapi/fpdf_render/cpdf_type3cache.cpp |
deleted file mode 100644 |
index 1891a8d2d0717af4aa34573ac73eabf21c40e3eb..0000000000000000000000000000000000000000 |
--- a/core/fpdfapi/fpdf_render/cpdf_type3cache.cpp |
+++ /dev/null |
@@ -1,171 +0,0 @@ |
-// Copyright 2016 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/fpdfapi/fpdf_render/cpdf_type3cache.h" |
- |
-#include <map> |
-#include <memory> |
- |
-#include "core/fpdfapi/font/cpdf_type3char.h" |
-#include "core/fpdfapi/font/cpdf_type3font.h" |
-#include "core/fpdfapi/fpdf_render/cpdf_type3glyphs.h" |
-#include "core/fxge/fx_dib.h" |
-#include "core/fxge/fx_font.h" |
- |
-namespace { |
- |
-struct CPDF_UniqueKeyGen { |
- void Generate(int count, ...); |
- FX_CHAR m_Key[128]; |
- int m_KeyLen; |
-}; |
- |
-void CPDF_UniqueKeyGen::Generate(int count, ...) { |
- va_list argList; |
- va_start(argList, count); |
- for (int i = 0; i < count; i++) { |
- int p = va_arg(argList, int); |
- (reinterpret_cast<uint32_t*>(m_Key))[i] = p; |
- } |
- va_end(argList); |
- m_KeyLen = count * sizeof(uint32_t); |
-} |
- |
-FX_BOOL IsScanLine1bpp(uint8_t* pBuf, int width) { |
- int size = width / 8; |
- for (int i = 0; i < size; i++) { |
- if (pBuf[i]) |
- return TRUE; |
- } |
- return (width % 8) && (pBuf[width / 8] & (0xff << (8 - width % 8))); |
-} |
- |
-FX_BOOL IsScanLine8bpp(uint8_t* pBuf, int width) { |
- for (int i = 0; i < width; i++) { |
- if (pBuf[i] > 0x40) |
- return TRUE; |
- } |
- return FALSE; |
-} |
- |
-int DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst) { |
- int height = pBitmap->GetHeight(); |
- int pitch = pBitmap->GetPitch(); |
- int width = pBitmap->GetWidth(); |
- int bpp = pBitmap->GetBPP(); |
- if (bpp > 8) |
- width *= bpp / 8; |
- uint8_t* pBuf = pBitmap->GetBuffer(); |
- int line = bFirst ? 0 : height - 1; |
- int line_step = bFirst ? 1 : -1; |
- int line_end = bFirst ? height : -1; |
- while (line != line_end) { |
- if (bpp == 1) { |
- if (IsScanLine1bpp(pBuf + line * pitch, width)) |
- return line; |
- } else { |
- if (IsScanLine8bpp(pBuf + line * pitch, width)) |
- return line; |
- } |
- line += line_step; |
- } |
- return -1; |
-} |
- |
-} // namespace |
- |
-CPDF_Type3Cache::CPDF_Type3Cache(CPDF_Type3Font* pFont) : m_pFont(pFont) {} |
- |
-CPDF_Type3Cache::~CPDF_Type3Cache() { |
- for (const auto& pair : m_SizeMap) |
- delete pair.second; |
- m_SizeMap.clear(); |
-} |
- |
-CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(uint32_t charcode, |
- const CFX_Matrix* pMatrix, |
- FX_FLOAT retinaScaleX, |
- FX_FLOAT retinaScaleY) { |
- CPDF_UniqueKeyGen keygen; |
- keygen.Generate( |
- 4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000), |
- FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000)); |
- CFX_ByteString FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen); |
- CPDF_Type3Glyphs* pSizeCache; |
- auto it = m_SizeMap.find(FaceGlyphsKey); |
- if (it == m_SizeMap.end()) { |
- pSizeCache = new CPDF_Type3Glyphs; |
- m_SizeMap[FaceGlyphsKey] = pSizeCache; |
- } else { |
- pSizeCache = it->second; |
- } |
- auto it2 = pSizeCache->m_GlyphMap.find(charcode); |
- if (it2 != pSizeCache->m_GlyphMap.end()) |
- return it2->second; |
- |
- CFX_GlyphBitmap* pGlyphBitmap = |
- RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY); |
- pSizeCache->m_GlyphMap[charcode] = pGlyphBitmap; |
- return pGlyphBitmap; |
-} |
- |
-CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize, |
- uint32_t charcode, |
- const CFX_Matrix* pMatrix, |
- FX_FLOAT retinaScaleX, |
- FX_FLOAT retinaScaleY) { |
- const CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode); |
- if (!pChar || !pChar->m_pBitmap) |
- return nullptr; |
- |
- CFX_DIBitmap* pBitmap = pChar->m_pBitmap.get(); |
- CFX_Matrix image_matrix, text_matrix; |
- image_matrix = pChar->m_ImageMatrix; |
- text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0); |
- image_matrix.Concat(text_matrix); |
- std::unique_ptr<CFX_DIBitmap> pResBitmap; |
- int left = 0; |
- int top = 0; |
- if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 && |
- FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) { |
- int top_line = DetectFirstLastScan(pBitmap, TRUE); |
- int bottom_line = DetectFirstLastScan(pBitmap, FALSE); |
- if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) { |
- FX_FLOAT top_y = image_matrix.d + image_matrix.f; |
- FX_FLOAT bottom_y = image_matrix.f; |
- FX_BOOL bFlipped = top_y > bottom_y; |
- if (bFlipped) { |
- FX_FLOAT temp = top_y; |
- top_y = bottom_y; |
- bottom_y = temp; |
- } |
- pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line); |
- pResBitmap.reset(pBitmap->StretchTo( |
- (int)(FXSYS_round(image_matrix.a) * retinaScaleX), |
- (int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) * |
- retinaScaleY))); |
- top = top_line; |
- if (image_matrix.a < 0) { |
- image_matrix.Scale(retinaScaleX, retinaScaleY); |
- left = FXSYS_round(image_matrix.e + image_matrix.a); |
- } else { |
- left = FXSYS_round(image_matrix.e); |
- } |
- } |
- } |
- if (!pResBitmap) { |
- image_matrix.Scale(retinaScaleX, retinaScaleY); |
- pResBitmap.reset(pBitmap->TransformTo(&image_matrix, left, top)); |
- } |
- if (!pResBitmap) |
- return nullptr; |
- |
- CFX_GlyphBitmap* pGlyph = new CFX_GlyphBitmap; |
- pGlyph->m_Left = left; |
- pGlyph->m_Top = -top; |
- pGlyph->m_Bitmap.TakeOver(pResBitmap.get()); |
- return pGlyph; |
-} |