diff options
author | dsinclair <dsinclair@chromium.org> | 2016-10-04 11:29:35 -0700 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2016-10-04 11:29:36 -0700 |
commit | 41872fa5ac7448a50f66ad56d7bde8d1aa77db4b (patch) | |
tree | 49f8162a8ed05ace693d7164f9ba116286427919 /core/fpdfapi/fpdf_page/cpdf_meshstream.cpp | |
parent | bc5e6d289ed40efec2b0e03427e8fc2947bf53e3 (diff) | |
download | pdfium-41872fa5ac7448a50f66ad56d7bde8d1aa77db4b.tar.xz |
Move core/fpdfapi/fpdf_page to core/fpdfapi/page
BUG=pdfium:603
Review-Url: https://codereview.chromium.org/2386423004
Diffstat (limited to 'core/fpdfapi/fpdf_page/cpdf_meshstream.cpp')
-rw-r--r-- | core/fpdfapi/fpdf_page/cpdf_meshstream.cpp | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_meshstream.cpp b/core/fpdfapi/fpdf_page/cpdf_meshstream.cpp deleted file mode 100644 index 9e707365ec..0000000000 --- a/core/fpdfapi/fpdf_page/cpdf_meshstream.cpp +++ /dev/null @@ -1,217 +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_page/cpdf_meshstream.h" - -#include "core/fpdfapi/fpdf_page/cpdf_colorspace.h" -#include "core/fpdfapi/fpdf_page/pageint.h" -#include "core/fpdfapi/fpdf_parser/cpdf_array.h" - -namespace { - -// See PDF Reference 1.7, page 315, table 4.32. (Also table 4.33 and 4.34) -bool ShouldCheckBPC(ShadingType type) { - switch (type) { - case kFreeFormGouraudTriangleMeshShading: - case kLatticeFormGouraudTriangleMeshShading: - case kCoonsPatchMeshShading: - case kTensorProductPatchMeshShading: - return true; - default: - return false; - } -} - -// Same references as ShouldCheckBPC() above. -bool IsValidBitsPerComponent(uint32_t x) { - switch (x) { - case 1: - case 2: - case 4: - case 8: - case 12: - case 16: - return true; - default: - return false; - } -} - -// Same references as ShouldCheckBPC() above. -bool IsValidBitsPerCoordinate(uint32_t x) { - switch (x) { - case 1: - case 2: - case 4: - case 8: - case 12: - case 16: - case 24: - case 32: - return true; - default: - return false; - } -} - -// See PDF Reference 1.7, page 315, table 4.32. (Also table 4.34) -bool ShouldCheckBitsPerFlag(ShadingType type) { - switch (type) { - case kFreeFormGouraudTriangleMeshShading: - case kCoonsPatchMeshShading: - case kTensorProductPatchMeshShading: - return true; - default: - return false; - } -} - -// Same references as ShouldCheckBitsPerFlag() above. -bool IsValidBitsPerFlag(uint32_t x) { - switch (x) { - case 2: - case 4: - case 8: - return true; - default: - return false; - } -} - -} // namespace - -CPDF_MeshStream::CPDF_MeshStream( - ShadingType type, - const std::vector<std::unique_ptr<CPDF_Function>>& funcs, - CPDF_Stream* pShadingStream, - CPDF_ColorSpace* pCS) - : m_type(type), - m_funcs(funcs), - m_pShadingStream(pShadingStream), - m_pCS(pCS), - m_nCoordBits(0), - m_nComponentBits(0), - m_nFlagBits(0), - m_nComponents(0), - m_CoordMax(0), - m_ComponentMax(0), - m_xmin(0), - m_xmax(0), - m_ymin(0), - m_ymax(0) { - memset(&m_ColorMin, 0, sizeof(m_ColorMin)); - memset(&m_ColorMax, 0, sizeof(m_ColorMax)); -} - -bool CPDF_MeshStream::Load() { - m_Stream.LoadAllData(m_pShadingStream); - m_BitStream.Init(m_Stream.GetData(), m_Stream.GetSize()); - CPDF_Dictionary* pDict = m_pShadingStream->GetDict(); - m_nCoordBits = pDict->GetIntegerFor("BitsPerCoordinate"); - m_nComponentBits = pDict->GetIntegerFor("BitsPerComponent"); - if (ShouldCheckBPC(m_type)) { - if (!IsValidBitsPerCoordinate(m_nCoordBits)) - return false; - if (!IsValidBitsPerComponent(m_nComponentBits)) - return false; - } - - m_nFlagBits = pDict->GetIntegerFor("BitsPerFlag"); - if (ShouldCheckBitsPerFlag(m_type) && !IsValidBitsPerFlag(m_nFlagBits)) - return false; - - uint32_t nComponents = m_pCS->CountComponents(); - if (nComponents > kMaxComponents) - return false; - - m_nComponents = m_funcs.empty() ? nComponents : 1; - CPDF_Array* pDecode = pDict->GetArrayFor("Decode"); - if (!pDecode || pDecode->GetCount() != 4 + m_nComponents * 2) - return false; - - m_xmin = pDecode->GetNumberAt(0); - m_xmax = pDecode->GetNumberAt(1); - m_ymin = pDecode->GetNumberAt(2); - m_ymax = pDecode->GetNumberAt(3); - for (uint32_t i = 0; i < m_nComponents; ++i) { - m_ColorMin[i] = pDecode->GetNumberAt(i * 2 + 4); - m_ColorMax[i] = pDecode->GetNumberAt(i * 2 + 5); - } - - if (ShouldCheckBPC(m_type)) { - m_CoordMax = m_nCoordBits == 32 ? -1 : (1 << m_nCoordBits) - 1; - m_ComponentMax = (1 << m_nComponentBits) - 1; - } - return true; -} - -uint32_t CPDF_MeshStream::GetFlag() { - ASSERT(ShouldCheckBitsPerFlag(m_type)); - return m_BitStream.GetBits(m_nFlagBits) & 0x03; -} - -void CPDF_MeshStream::GetCoords(FX_FLOAT& x, FX_FLOAT& y) { - ASSERT(ShouldCheckBPC(m_type)); - if (m_nCoordBits == 32) { - x = m_xmin + (FX_FLOAT)(m_BitStream.GetBits(m_nCoordBits) * - (m_xmax - m_xmin) / (double)m_CoordMax); - y = m_ymin + (FX_FLOAT)(m_BitStream.GetBits(m_nCoordBits) * - (m_ymax - m_ymin) / (double)m_CoordMax); - } else { - x = m_xmin + - m_BitStream.GetBits(m_nCoordBits) * (m_xmax - m_xmin) / m_CoordMax; - y = m_ymin + - m_BitStream.GetBits(m_nCoordBits) * (m_ymax - m_ymin) / m_CoordMax; - } -} - -void CPDF_MeshStream::GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b) { - ASSERT(ShouldCheckBPC(m_type)); - FX_FLOAT color_value[kMaxComponents]; - for (uint32_t i = 0; i < m_nComponents; ++i) { - color_value[i] = m_ColorMin[i] + - m_BitStream.GetBits(m_nComponentBits) * - (m_ColorMax[i] - m_ColorMin[i]) / m_ComponentMax; - } - if (m_funcs.empty()) { - m_pCS->GetRGB(color_value, r, g, b); - return; - } - - FX_FLOAT result[kMaxComponents]; - FXSYS_memset(result, 0, sizeof(result)); - int nResults; - for (const auto& func : m_funcs) { - if (func && func->CountOutputs() <= kMaxComponents) - func->Call(color_value, 1, result, nResults); - } - m_pCS->GetRGB(result, r, g, b); -} - -uint32_t CPDF_MeshStream::GetVertex(CPDF_MeshVertex& vertex, - CFX_Matrix* pObject2Bitmap) { - uint32_t flag = GetFlag(); - GetCoords(vertex.x, vertex.y); - pObject2Bitmap->Transform(vertex.x, vertex.y); - GetColor(vertex.r, vertex.g, vertex.b); - m_BitStream.ByteAlign(); - return flag; -} - -FX_BOOL CPDF_MeshStream::GetVertexRow(CPDF_MeshVertex* vertex, - int count, - CFX_Matrix* pObject2Bitmap) { - for (int i = 0; i < count; i++) { - if (m_BitStream.IsEOF()) - return FALSE; - - GetCoords(vertex[i].x, vertex[i].y); - pObject2Bitmap->Transform(vertex[i].x, vertex[i].y); - GetColor(vertex[i].r, vertex[i].g, vertex[i].b); - m_BitStream.ByteAlign(); - } - return TRUE; -} |