FX_BOOL CPDF_ScaledRenderBuffer::Initialize(CPDF_RenderContext* pContext,
CFX_RenderDevice* pDevice,
FX_RECT* pRect,
const CPDF_PageObject* pObj,
const CPDF_RenderOptions* pOptions,
int max_dpi) {
FXSYS_assert(pRect != NULL);
m_pDevice = pDevice;
if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_GET_BITS) {
return TRUE;
}
m_pContext = pContext;
m_Rect = *pRect;
m_pObject = pObj;
m_Matrix.TranslateI(-pRect->left, -pRect->top);
int horz_size = pDevice->GetDeviceCaps(FXDC_HORZ_SIZE);
int vert_size = pDevice->GetDeviceCaps(FXDC_VERT_SIZE);
if (horz_size && vert_size && max_dpi) {
int dpih =
pDevice->GetDeviceCaps(FXDC_PIXEL_WIDTH) * 254 / (horz_size * 10);
int dpiv =
pDevice->GetDeviceCaps(FXDC_PIXEL_HEIGHT) * 254 / (vert_size * 10);
if (dpih > max_dpi) {
m_Matrix.Scale((FX_FLOAT)(max_dpi) / dpih, 1.0f);
}
if (dpiv > max_dpi) {
m_Matrix.Scale(1.0f, (FX_FLOAT)(max_dpi) / (FX_FLOAT)dpiv);
}
}
m_pBitmapDevice.reset(new CFX_FxgeDevice);
FXDIB_Format dibFormat = FXDIB_Rgb;
int32_t bpp = 24;
if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_ALPHA_OUTPUT) {
dibFormat = FXDIB_Argb;
bpp = 32;
}
CFX_FloatRect rect;
int32_t iWidth, iHeight, iPitch;
while (1) {
rect = *pRect;
m_Matrix.TransformRect(rect);
FX_RECT bitmap_rect = rect.GetOutterRect();
iWidth = bitmap_rect.Width();
iHeight = bitmap_rect.Height();
iPitch = (iWidth * bpp + 31) / 32 * 4;
if (iWidth * iHeight < 1) {
return FALSE;
}
if (iPitch * iHeight <= _FPDFAPI_IMAGESIZE_LIMIT_ &&
m_pBitmapDevice->Create(iWidth, iHeight, dibFormat)) {
break;
}
m_Matrix.Scale(0.5f, 0.5f);
}
m_pContext->GetBackground(m_pBitmapDevice->GetBitmap(), m_pObject, pOptions,
&m_Matrix);
return TRUE;
}
FX_RECT CFFL_IFormFiller::GetViewBBox(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE))
return pFormFiller->GetViewBBox(pPageView, pAnnot);
ASSERT(pPageView);
CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
CFX_FloatRect rcAnnot;
pPDFAnnot->GetRect(rcAnnot);
CFX_FloatRect rcWin = CPWL_Utils::InflateRect(rcAnnot, 1);
return rcWin.GetOutterRect();
}
void CFX_PSRenderer::SetClip_PathFill(const CFX_PathData* pPathData,
const CFX_AffineMatrix* pObject2Device,
int fill_mode
)
{
StartRendering();
OutputPath(pPathData, pObject2Device);
CFX_FloatRect rect = pPathData->GetBoundingBox();
if (pObject2Device) {
rect.Transform(pObject2Device);
}
m_ClipBox.Intersect(rect.GetOutterRect());
if ((fill_mode & 3) == FXFILL_WINDING) {
OUTPUT_PS("W n\n");
} else {
OUTPUT_PS("W* n\n");
}
}
FX_RECT CFFL_FormFiller::GetViewBBox(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
ASSERT(pPageView);
ASSERT(pAnnot);
CFX_FloatRect rcAnnot = m_pWidget->GetRect();
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, FALSE)) {
CFX_FloatRect rcWindow = pWnd->GetWindowRect();
rcAnnot = PWLtoFFL(rcWindow);
}
CFX_FloatRect rcWin = rcAnnot;
CFX_FloatRect rcFocus = GetFocusBox(pPageView);
if (!rcFocus.IsEmpty())
rcWin.Union(rcFocus);
CFX_FloatRect rect = CPWL_Utils::InflateRect(rcWin, 1);
return rect.GetOutterRect();
}
void CFX_PSRenderer::SetClip_PathStroke(const CFX_PathData* pPathData,
const CFX_AffineMatrix* pObject2Device,
const CFX_GraphStateData* pGraphState
)
{
StartRendering();
SetGraphState(pGraphState);
if (pObject2Device) {
CFX_ByteTextBuf buf;
buf << FX_BSTRC("mx Cm [") << pObject2Device->a << FX_BSTRC(" ") << pObject2Device->b << FX_BSTRC(" ") <<
pObject2Device->c << FX_BSTRC(" ") << pObject2Device->d << FX_BSTRC(" ") << pObject2Device->e <<
FX_BSTRC(" ") << pObject2Device->f << FX_BSTRC("]cm ");
m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
}
OutputPath(pPathData, NULL);
CFX_FloatRect rect = pPathData->GetBoundingBox(pGraphState->m_LineWidth, pGraphState->m_MiterLimit);
rect.Transform(pObject2Device);
m_ClipBox.Intersect(rect.GetOutterRect());
if (pObject2Device) {
OUTPUT_PS("strokepath W n sm\n");
} else {
OUTPUT_PS("strokepath W n\n");
}
}
void CPDF_ProgressiveReflowPageRender::Display(IFX_Pause* pPause)
{
if (NULL == m_pReflowPage) {
m_Status = Done;
return;
}
FX_RECT clipBox = m_pFXDevice->GetClipBox();
int size = m_pReflowPage->m_pReflowed->GetSize();
if (size < 1 || NULL == m_pDisplayMatrix) {
m_Status = Done;
return;
}
for(int i = m_CurrNum; i < size; i++) {
CRF_Data* pData = (*m_pReflowPage->m_pReflowed)[i];
if(!pData) {
continue;
}
CFX_FloatRect rect (pData->m_PosX, pData->m_PosY + pData->m_Height, pData->m_PosX + pData->m_Width, pData->m_PosY);
m_pDisplayMatrix->TransformRect(rect);
if(rect.left > clipBox.right || rect.right < clipBox.left || rect.bottom > clipBox.bottom || rect.top < clipBox.top) {
continue;
}
if(pData->GetType() == CRF_Data::Text) {
CRF_CharData* pCharData = (CRF_CharData*)pData;
CPDF_Font* pPDFFont = pCharData->m_pCharState->m_pFont;
if(pPDFFont->GetFontType() == PDFFONT_TYPE3) {
continue;
}
FX_FLOAT x = pData->m_PosX, y = pData->m_PosY - pCharData->m_pCharState->m_fDescent;
FXTEXT_CHARPOS charpos ;
charpos.m_GlyphIndex = pPDFFont->GlyphFromCharCode(pCharData->m_CharCode);
charpos.m_FontCharWidth = pPDFFont->m_Font.GetGlyphWidth(charpos.m_GlyphIndex);
charpos.m_OriginX = x;
charpos.m_OriginY = y;
FX_FLOAT charW = pData->m_Width * 1000 / pData->m_Height;
if(charW != charpos.m_FontCharWidth) {
charpos.m_bGlyphAdjust = TRUE;
charpos.m_AdjustMatrix[0] = charW / charpos.m_FontCharWidth;
charpos.m_AdjustMatrix[1] = 0;
charpos.m_AdjustMatrix[2] = 0;
charpos.m_AdjustMatrix[3] = 1;
} else {
charpos.m_bGlyphAdjust = FALSE;
}
FX_BOOL bRet = FALSE;
if(m_DisplayColor == -1)
bRet = m_pFXDevice->DrawNormalText(1, &charpos, &(pPDFFont->m_Font),
NULL, pCharData->m_pCharState->m_fFontSize,
m_pDisplayMatrix, pCharData->m_pCharState->m_Color + 0xff000000, FXTEXT_CLEARTYPE);
else
bRet = m_pFXDevice->DrawNormalText(1, &charpos, &(pPDFFont->m_Font),
NULL, pCharData->m_pCharState->m_fFontSize, m_pDisplayMatrix, m_DisplayColor, FXTEXT_CLEARTYPE);
} else if(pData->GetType() == CRF_Data::Image) {
CRF_ImageData* pImageData = (CRF_ImageData*)pData;
if(!pImageData->m_pBitmap) {
continue;
}
int left = 0, top = 0;
CFX_DIBitmap* pDiBmp = NULL;
CFX_DIBSource* pDispSource = pImageData->m_pBitmap;
if(pImageData->m_Matrix.d < 0) {
CFX_AffineMatrix matrix(pImageData->m_Matrix.a, 0, 0, -pImageData->m_Matrix.d, 0, 0);
int left, top;
pDiBmp = pImageData->m_pBitmap->TransformTo(&matrix, left, top);
pDispSource = pDiBmp;
}
if (NULL == pDispSource) {
continue;
}
if (pDispSource->GetFormat() == FXDIB_1bppMask || pDispSource->GetFormat() == FXDIB_8bppMask) {
m_pFXDevice->StretchBitMask(pDispSource, (int)(rect.left + 0.5), (int)(rect.bottom + 0.5), (int)(rect.Width() + 0.5), (int)(rect.Height() + 0.5), 0xff000000);
} else {
m_pFXDevice->StretchDIBits(pDispSource, (int)(rect.left + 0.5), (int)(rect.bottom + 0.5), (int)(rect.Width() + 0.5), (int)(rect.Height() + 0.5));
}
if(m_pFXDevice->GetBitmap() && m_pFXDevice->GetBitmap()->GetFormat() == FXDIB_8bppRgb &&
m_pFXDevice->GetBitmap()->GetPalette() == NULL) {
int nPalette = 0;
switch(m_DitherBits) {
case 0:
nPalette = 0;
break;
case 1:
nPalette = 2;
break;
case 2:
nPalette = 4;
break;
case 3:
nPalette = 8;
break;
case 4:
nPalette = 16;
break;
case 5:
nPalette = 32;
break;
case 6:
nPalette = 64;
break;
case 7:
nPalette = 128;
break;
default:
nPalette = 256;
break;
}
if(nPalette >= 2) {
FX_ARGB * palette = FX_Alloc(FX_ARGB, nPalette);
nPalette --;
palette[0] = 0;
palette[nPalette] = 255;
FX_FLOAT Dither = (FX_FLOAT)255 / (nPalette);
for(int i = 1; i < nPalette; i++) {
palette[i] = (FX_ARGB)(Dither * i + 0.5);
}
FX_RECT tmpRect = rect.GetOutterRect();
m_pFXDevice->GetBitmap()->DitherFS(palette, nPalette + 1, &tmpRect);
FX_Free (palette);
}
}
if(pDiBmp) {
delete pDiBmp;
}
} else if(pData->GetType() == CRF_Data::Path) {
}
if(!(i % 10)) {
if(pPause && pPause->NeedToPauseNow()) {
i++;
m_CurrNum = i;
m_Status = ToBeContinued;
return;
}
}
}
m_CurrNum = size;
m_Status = Done;
}
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();
}