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Unified Diff: core/fpdfapi/fpdf_render/cpdf_type3cache.cpp

Issue 2393593002: Move core/fpdfapi/fpdf_render to core/fpdfapi/render (Closed)
Patch Set: Rebase to master Created 4 years, 2 months ago
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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;
-}
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