コード例 #1
0
ファイル: fpdf_page_colors.cpp プロジェクト: abbro-ca/pdfium
FX_BOOL CPDF_SeparationCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const
{
    if (m_Type == None) {
        return FALSE;
    }
    if (m_pFunc == NULL) {
        if (m_pAltCS == NULL) {
            return FALSE;
        }
        int nComps = m_pAltCS->CountComponents();
        CFX_FixedBufGrow<FX_FLOAT, 16> results(nComps);
        for (int i = 0; i < nComps; i ++) {
            results[i] = *pBuf;
        }
        m_pAltCS->GetRGB(results, R, G, B);
        return TRUE;
    }
    CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
    int nresults = 0;
    m_pFunc->Call(pBuf, 1, results, nresults);
    if (nresults == 0) {
        return FALSE;
    }
    if (m_pAltCS) {
        m_pAltCS->GetRGB(results, R, G, B);
        return TRUE;
    }
    R = G = B = 0;
    return FALSE;
}
コード例 #2
0
ファイル: fpdf_page_colors.cpp プロジェクト: abbro-ca/pdfium
FX_BOOL CPDF_ICCBasedCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const
{
    if (m_pProfile && m_pProfile->m_bsRGB) {
        R = pBuf[0];
        G = pBuf[1];
        B = pBuf[2];
        return TRUE;
    }
    ICodec_IccModule *pIccModule = CPDF_ModuleMgr::Get()->GetIccModule();
    if (m_pProfile->m_pTransform == NULL || pIccModule == NULL) {
        if (m_pAlterCS) {
            m_pAlterCS->GetRGB(pBuf, R, G, B);
        } else {
            R = G = B = 0.0f;
        }
        return TRUE;
    }
    FX_FLOAT rgb[3];
    pIccModule->SetComponents(m_nComponents);
    pIccModule->Translate(m_pProfile->m_pTransform, pBuf, rgb);
    R = rgb[0];
    G = rgb[1];
    B = rgb[2];
    return TRUE;
}
コード例 #3
0
FX_BOOL CPDF_IndexedCS::GetRGB(FX_FLOAT* pBuf,
                               FX_FLOAT& R,
                               FX_FLOAT& G,
                               FX_FLOAT& B) const {
  int index = (int32_t)(*pBuf);
  if (index < 0 || index > m_MaxIndex) {
    return FALSE;
  }
  if (m_nBaseComponents) {
    if (index == INT_MAX || (index + 1) > INT_MAX / m_nBaseComponents ||
        (index + 1) * m_nBaseComponents > (int)m_Table.GetLength()) {
      R = G = B = 0;
      return FALSE;
    }
  }
  CFX_FixedBufGrow<FX_FLOAT, 16> Comps(m_nBaseComponents);
  FX_FLOAT* comps = Comps;
  const uint8_t* pTable = m_Table;
  for (int i = 0; i < m_nBaseComponents; i++) {
    comps[i] =
        m_pCompMinMax[i * 2] +
        m_pCompMinMax[i * 2 + 1] * pTable[index * m_nBaseComponents + i] / 255;
  }
  m_pBaseCS->GetRGB(comps, R, G, B);
  return TRUE;
}
コード例 #4
0
ファイル: fpdf_page_colors.cpp プロジェクト: abbro-ca/pdfium
FX_BOOL CPDF_DeviceNCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const
{
    if (m_pFunc == NULL) {
        return FALSE;
    }
    CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
    int nresults = 0;
    m_pFunc->Call(pBuf, m_nComponents, results, nresults);
    if (nresults == 0) {
        return FALSE;
    }
    m_pAltCS->GetRGB(results, R, G, B);
    return TRUE;
}
コード例 #5
0
void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
                                    CFX_Matrix* pMatrix,
                                    FX_RECT& clip_rect,
                                    int alpha,
                                    FX_BOOL bAlphaMode) {
  CPDF_Function** pFuncs = pPattern->m_pFunctions;
  int nFuncs = pPattern->m_nFuncs;
  CPDF_Dictionary* pDict = pPattern->m_pShadingObj->GetDict();
  CPDF_ColorSpace* pColorSpace = pPattern->m_pCS;
  if (!pColorSpace) {
    return;
  }
  FX_ARGB background = 0;
  if (!pPattern->m_bShadingObj &&
      pPattern->m_pShadingObj->GetDict()->KeyExist("Background")) {
    CPDF_Array* pBackColor =
        pPattern->m_pShadingObj->GetDict()->GetArray("Background");
    if (pBackColor &&
        pBackColor->GetCount() >= (FX_DWORD)pColorSpace->CountComponents()) {
      CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents());
      for (int i = 0; i < pColorSpace->CountComponents(); i++) {
        comps[i] = pBackColor->GetNumber(i);
      }
      FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
      pColorSpace->GetRGB(comps, R, G, B);
      background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255),
                              (int32_t)(B * 255));
    }
  }
  if (pDict->KeyExist("BBox")) {
    CFX_FloatRect rect = pDict->GetRect("BBox");
    rect.Transform(pMatrix);
    clip_rect.Intersect(rect.GetOutterRect());
  }
  CPDF_DeviceBuffer buffer;
  buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150);
  CFX_Matrix FinalMatrix = *pMatrix;
  FinalMatrix.Concat(*buffer.GetMatrix());
  CFX_DIBitmap* pBitmap = buffer.GetBitmap();
  if (!pBitmap->GetBuffer()) {
    return;
  }
  pBitmap->Clear(background);
  int fill_mode = m_Options.m_Flags;
  switch (pPattern->m_ShadingType) {
    case kInvalidShading:
    case kMaxShading:
      return;
    case kFunctionBasedShading:
      DrawFuncShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace,
                      alpha);
      break;
    case kAxialShading:
      DrawAxialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
                       pColorSpace, alpha);
      break;
    case kRadialShading:
      DrawRadialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
                        pColorSpace, alpha);
      break;
    case kFreeFormGouraudTriangleMeshShading: {
      DrawFreeGouraudShading(pBitmap, &FinalMatrix,
                             ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
                             pColorSpace, alpha);
    } break;
    case kLatticeFormGouraudTriangleMeshShading: {
      DrawLatticeGouraudShading(pBitmap, &FinalMatrix,
                                ToStream(pPattern->m_pShadingObj), pFuncs,
                                nFuncs, pColorSpace, alpha);
    } break;
    case kCoonsPatchMeshShading:
    case kTensorProductPatchMeshShading: {
      DrawCoonPatchMeshes(
          pPattern->m_ShadingType == kTensorProductPatchMeshShading, pBitmap,
          &FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
          pColorSpace, fill_mode, alpha);
    } break;
  }
  if (bAlphaMode) {
    pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha);
  }
  if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
    pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
  }
  buffer.OutputToDevice();
}
コード例 #6
0
CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
        FX_RECT* pClipRect,
        const CFX_AffineMatrix* pMatrix) {
    if (pSMaskDict == NULL) {
        return NULL;
    }
    int width = pClipRect->right - pClipRect->left;
    int height = pClipRect->bottom - pClipRect->top;
    FX_BOOL bLuminosity = FALSE;
    bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
    CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
    if (pGroup == NULL) {
        return NULL;
    }
    nonstd::unique_ptr<CPDF_Function> pFunc;
    CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
    if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream()))
        pFunc.reset(CPDF_Function::Load(pFuncObj));

    CFX_AffineMatrix matrix = *pMatrix;
    matrix.TranslateI(-pClipRect->left, -pClipRect->top);
    CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
    form.ParseContent(NULL, NULL, NULL, NULL);
    CFX_FxgeDevice bitmap_device;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
    if (!bitmap_device.Create(width, height,
                              bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
        return NULL;
    }
#else
    if (!bitmap_device.Create(width, height,
                              bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
        return NULL;
    }
#endif
    CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
    CPDF_Object* pCSObj = NULL;
    CPDF_ColorSpace* pCS = NULL;
    if (bLuminosity) {
        CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
        FX_ARGB back_color = 0xff000000;
        if (pBC) {
            CPDF_Dictionary* pDict = pGroup->GetDict();
            if (pDict && pDict->GetDict(FX_BSTRC("Group")))
                pCSObj =
                    pDict->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
            else
                pCSObj = NULL;
            pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
            if (pCS) {
                FX_FLOAT R, G, B;
                FX_DWORD comps = 8;
                if (pCS->CountComponents() > static_cast<int32_t>(comps)) {
                    comps = (FX_DWORD)pCS->CountComponents();
                }
                CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
                FX_FLOAT* pFloats = float_array;
                FX_SAFE_DWORD num_floats = comps;
                num_floats *= sizeof(FX_FLOAT);
                if (!num_floats.IsValid()) {
                    return NULL;
                }
                FXSYS_memset(pFloats, 0, num_floats.ValueOrDie());
                int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
                for (int i = 0; i < count; i++) {
                    pFloats[i] = pBC->GetNumber(i);
                }
                pCS->GetRGB(pFloats, R, G, B);
                back_color = 0xff000000 | ((int32_t)(R * 255) << 16) |
                             ((int32_t)(G * 255) << 8) | (int32_t)(B * 255);
                m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
            }
        }
        bitmap.Clear(back_color);
    } else {
        bitmap.Clear(0);
    }
    CPDF_Dictionary* pFormResource = NULL;
    if (form.m_pFormDict) {
        pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
    }
    CPDF_RenderOptions options;
    options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
    CPDF_RenderStatus status;
    status.Initialize(m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
                      &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0,
                      pCS ? pCS->GetFamily() : 0, bLuminosity);
    status.RenderObjectList(&form, &matrix);
    nonstd::unique_ptr<CFX_DIBitmap> pMask(new CFX_DIBitmap);
    if (!pMask->Create(width, height, FXDIB_8bppMask))
        return nullptr;

    uint8_t* dest_buf = pMask->GetBuffer();
    int dest_pitch = pMask->GetPitch();
    uint8_t* src_buf = bitmap.GetBuffer();
    int src_pitch = bitmap.GetPitch();
    std::vector<uint8_t> transfers(256);
    if (pFunc) {
        CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
        for (int i = 0; i < 256; i++) {
            FX_FLOAT input = (FX_FLOAT)i / 255.0f;
            int nresult;
            pFunc->Call(&input, 1, results, nresult);
            transfers[i] = FXSYS_round(results[0] * 255);
        }
    } else {
        for (int i = 0; i < 256; i++) {
            transfers[i] = i;
        }
    }
    if (bLuminosity) {
        int Bpp = bitmap.GetBPP() / 8;
        for (int row = 0; row < height; row++) {
            uint8_t* dest_pos = dest_buf + row * dest_pitch;
            uint8_t* src_pos = src_buf + row * src_pitch;
            for (int col = 0; col < width; col++) {
                *dest_pos++ = transfers[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
                src_pos += Bpp;
            }
        }
    } else if (pFunc) {
        int size = dest_pitch * height;
        for (int i = 0; i < size; i++) {
            dest_buf[i] = transfers[src_buf[i]];
        }
    } else {
        FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
    }
    return pMask.release();
}
コード例 #7
0
CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
        FX_RECT* pClipRect, const CFX_AffineMatrix* pMatrix)
{
    if (pSMaskDict == NULL) {
        return NULL;
    }
    CFX_DIBitmap* pMask = NULL;
    int width = pClipRect->right - pClipRect->left;
    int height = pClipRect->bottom - pClipRect->top;
    FX_BOOL bLuminosity = FALSE;
    bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
    CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
    if (pGroup == NULL) {
        return NULL;
    }
    CPDF_Function* pFunc = NULL;
    CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
    if (pFuncObj && (pFuncObj->GetType() == PDFOBJ_DICTIONARY || pFuncObj->GetType() == PDFOBJ_STREAM)) {
        pFunc = CPDF_Function::Load(pFuncObj);
    }
    CFX_AffineMatrix matrix = *pMatrix;
    matrix.TranslateI(-pClipRect->left, -pClipRect->top);
    CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
    form.ParseContent(NULL, NULL, NULL, NULL);
    CFX_FxgeDevice bitmap_device;
#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
    if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
        return NULL;
    }
#else
    if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
        return NULL;
    }
#endif
    CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
    CPDF_Object* pCSObj = NULL;
    CPDF_ColorSpace* pCS = NULL;
    if (bLuminosity) {
        CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
        FX_ARGB back_color = 0xff000000;
        if (pBC) {
            pCSObj = pGroup->GetDict()->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
            pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
            if (pCS) {
                FX_FLOAT R, G, B;
                FX_DWORD num_floats = 8;
                if (pCS->CountComponents() > (FX_INT32)num_floats) {
                    num_floats = (FX_DWORD)pCS->CountComponents();
                }
                CFX_FixedBufGrow<FX_FLOAT, 8> float_array(num_floats);
                FX_FLOAT* pFloats = float_array;
                FXSYS_memset32(pFloats, 0, num_floats * sizeof(FX_FLOAT));
                int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
                for (int i = 0; i < count; i ++) {
                    pFloats[i] = pBC->GetNumber(i);
                }
                pCS->GetRGB(pFloats, R, G, B);
                back_color = 0xff000000 | ((FX_INT32)(R * 255) << 16) | ((FX_INT32)(G * 255) << 8) | (FX_INT32)(B * 255);
                m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
            }
        }
        bitmap.Clear(back_color);
    } else {
        bitmap.Clear(0);
    }
    CPDF_Dictionary* pFormResource = NULL;
    if (form.m_pFormDict) {
        pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
    }
    CPDF_RenderOptions options;
    options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
    CPDF_RenderStatus status;
    status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
                      &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0, pCS ? pCS->GetFamily() : 0, bLuminosity);
    status.RenderObjectList(&form, &matrix);
    pMask = FX_NEW CFX_DIBitmap;
    if (!pMask->Create(width, height, FXDIB_8bppMask)) {
        delete pMask;
        return NULL;
    }
    FX_LPBYTE dest_buf = pMask->GetBuffer();
    int dest_pitch = pMask->GetPitch();
    FX_LPBYTE src_buf = bitmap.GetBuffer();
    int src_pitch = bitmap.GetPitch();
    FX_LPBYTE pTransfer = FX_Alloc(FX_BYTE, 256);
    if (pFunc) {
        CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
        for (int i = 0; i < 256; i ++) {
            FX_FLOAT input = (FX_FLOAT)i / 255.0f;
            int nresult;
            pFunc->Call(&input, 1, results, nresult);
            pTransfer[i] = FXSYS_round(results[0] * 255);
        }
    } else {
        for (int i = 0; i < 256; i ++) {
            pTransfer[i] = i;
        }
    }
    if (bLuminosity) {
        int Bpp = bitmap.GetBPP() / 8;
        for (int row = 0; row < height; row ++) {
            FX_LPBYTE dest_pos = dest_buf + row * dest_pitch;
            FX_LPBYTE src_pos = src_buf + row * src_pitch;
            for (int col = 0; col < width; col ++) {
                *dest_pos ++ = pTransfer[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
                src_pos += Bpp;
            }
        }
    } else if (pFunc) {
        int size = dest_pitch * height;
        for (int i = 0; i < size; i ++) {
            dest_buf[i] = pTransfer[src_buf[i]];
        }
    } else {
        FXSYS_memcpy32(dest_buf, src_buf, dest_pitch * height);
    }
    if (pFunc) {
        delete pFunc;
    }
    FX_Free(pTransfer);
    return pMask;
}