diff options
Diffstat (limited to 'core/fpdfapi/render/fpdf_render_image.cpp')
| -rw-r--r-- | core/fpdfapi/render/fpdf_render_image.cpp | 263 |
1 files changed, 1 insertions, 262 deletions
diff --git a/core/fpdfapi/render/fpdf_render_image.cpp b/core/fpdfapi/render/fpdf_render_image.cpp index 560af06842..0c89a7521c 100644 --- a/core/fpdfapi/render/fpdf_render_image.cpp +++ b/core/fpdfapi/render/fpdf_render_image.cpp @@ -24,6 +24,7 @@ #include "core/fpdfapi/render/cpdf_pagerendercache.h" #include "core/fpdfapi/render/cpdf_rendercontext.h" #include "core/fpdfapi/render/cpdf_renderoptions.h" +#include "core/fpdfapi/render/cpdf_renderstatus.h" #include "core/fpdfdoc/cpdf_occontext.h" #include "core/fxcodec/fx_codec.h" #include "core/fxcrt/fx_safe_types.h" @@ -34,134 +35,6 @@ #include "core/fxge/skia/fx_skia_device.h" #endif -bool CPDF_RenderStatus::ProcessImage(CPDF_ImageObject* pImageObj, - const CFX_Matrix* pObj2Device) { - CPDF_ImageRenderer render; - if (render.Start(this, pImageObj, pObj2Device, m_bStdCS, m_curBlend)) { - render.Continue(nullptr); - } - return render.m_Result; -} -void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap, - int left, - int top, - FX_ARGB mask_argb, - int bitmap_alpha, - int blend_mode, - int Transparency) { - if (!pDIBitmap) { - return; - } - if (blend_mode == FXDIB_BLEND_NORMAL) { - if (!pDIBitmap->IsAlphaMask()) { - if (bitmap_alpha < 255) { -#ifdef _SKIA_SUPPORT_ - void* dummy; - CFX_Matrix m(pDIBitmap->GetWidth(), 0, 0, -pDIBitmap->GetHeight(), left, - top + pDIBitmap->GetHeight()); - m_pDevice->StartDIBits(pDIBitmap, bitmap_alpha, 0, &m, 0, dummy); - return; -#else - pDIBitmap->MultiplyAlpha(bitmap_alpha); -#endif - } -#ifdef _SKIA_SUPPORT_ - CFX_SkiaDeviceDriver::PreMultiply(pDIBitmap); -#endif - if (m_pDevice->SetDIBits(pDIBitmap, left, top)) { - return; - } - } else { - uint32_t fill_argb = m_Options.TranslateColor(mask_argb); - if (bitmap_alpha < 255) { - ((uint8_t*)&fill_argb)[3] = - ((uint8_t*)&fill_argb)[3] * bitmap_alpha / 255; - } - if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) { - return; - } - } - } - bool bIsolated = !!(Transparency & PDFTRANS_ISOLATED); - bool bGroup = !!(Transparency & PDFTRANS_GROUP); - bool bBackAlphaRequired = blend_mode && bIsolated && !m_bDropObjects; - bool bGetBackGround = - ((m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT)) || - (!(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT) && - (m_pDevice->GetRenderCaps() & FXRC_GET_BITS) && !bBackAlphaRequired); - if (bGetBackGround) { - if (bIsolated || !bGroup) { - if (pDIBitmap->IsAlphaMask()) { - return; - } - m_pDevice->SetDIBitsWithBlend(pDIBitmap, left, top, blend_mode); - } else { - FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), - top + pDIBitmap->GetHeight()); - rect.Intersect(m_pDevice->GetClipBox()); - CFX_DIBitmap* pClone = nullptr; - bool bClone = false; - if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) { - bClone = true; - pClone = m_pDevice->GetBackDrop()->Clone(&rect); - CFX_DIBitmap* pForeBitmap = m_pDevice->GetBitmap(); - pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pForeBitmap, rect.left, rect.top); - left = left >= 0 ? 0 : left; - top = top >= 0 ? 0 : top; - if (!pDIBitmap->IsAlphaMask()) - pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pDIBitmap, left, top, blend_mode); - else - pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pDIBitmap, mask_argb, left, top, blend_mode); - } else { - pClone = pDIBitmap; - } - if (m_pDevice->GetBackDrop()) { - m_pDevice->SetDIBits(pClone, rect.left, rect.top); - } else { - if (pDIBitmap->IsAlphaMask()) { - return; - } - m_pDevice->SetDIBitsWithBlend(pDIBitmap, rect.left, rect.top, - blend_mode); - } - if (bClone) { - delete pClone; - } - } - return; - } - int back_left, back_top; - FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), - top + pDIBitmap->GetHeight()); - std::unique_ptr<CFX_DIBitmap> pBackdrop( - GetBackdrop(m_pCurObj, rect, back_left, back_top, - blend_mode > FXDIB_BLEND_NORMAL && bIsolated)); - if (!pBackdrop) - return; - - if (!pDIBitmap->IsAlphaMask()) { - pBackdrop->CompositeBitmap(left - back_left, top - back_top, - pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), - pDIBitmap, 0, 0, blend_mode); - } else { - pBackdrop->CompositeMask(left - back_left, top - back_top, - pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), - pDIBitmap, mask_argb, 0, 0, blend_mode); - } - - std::unique_ptr<CFX_DIBitmap> pBackdrop1(new CFX_DIBitmap); - pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(), - FXDIB_Rgb32); - pBackdrop1->Clear((uint32_t)-1); - pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(), - pBackdrop->GetHeight(), pBackdrop.get(), 0, 0); - pBackdrop = std::move(pBackdrop1); - m_pDevice->SetDIBits(pBackdrop.get(), back_left, back_top); -} - CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {} FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const { @@ -954,137 +827,3 @@ CCodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder( int nComps, int bpc, const CPDF_Dictionary* pParams); - -CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict, - FX_RECT* pClipRect, - const CFX_Matrix* pMatrix) { - if (!pSMaskDict) - return nullptr; - - CPDF_Stream* pGroup = pSMaskDict->GetStreamFor("G"); - if (!pGroup) - return nullptr; - - std::unique_ptr<CPDF_Function> pFunc; - CPDF_Object* pFuncObj = pSMaskDict->GetDirectObjectFor("TR"); - if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream())) - pFunc = CPDF_Function::Load(pFuncObj); - - CFX_Matrix matrix = *pMatrix; - matrix.TranslateI(-pClipRect->left, -pClipRect->top); - - CPDF_Form form(m_pContext->GetDocument(), m_pContext->GetPageResources(), - pGroup); - form.ParseContent(nullptr, nullptr, nullptr); - - CFX_FxgeDevice bitmap_device; - bool bLuminosity = pSMaskDict->GetStringFor("S") != "Alpha"; - int width = pClipRect->right - pClipRect->left; - int height = pClipRect->bottom - pClipRect->top; - FXDIB_Format format; -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || defined _SKIA_SUPPORT_ || \ - defined _SKIA_SUPPORT_PATHS_ - format = bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask; -#else - format = bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask; -#endif - if (!bitmap_device.Create(width, height, format, nullptr)) - return nullptr; - - CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap(); - int color_space_family = 0; - if (bLuminosity) { - CPDF_Array* pBC = pSMaskDict->GetArrayFor("BC"); - FX_ARGB back_color = 0xff000000; - if (pBC) { - CPDF_Object* pCSObj = nullptr; - CPDF_Dictionary* pDict = pGroup->GetDict(); - if (pDict && pDict->GetDictFor("Group")) { - pCSObj = pDict->GetDictFor("Group")->GetDirectObjectFor("CS"); - } - const CPDF_ColorSpace* pCS = - m_pContext->GetDocument()->LoadColorSpace(pCSObj); - if (pCS) { - // Store Color Space Family to use in CPDF_RenderStatus::Initialize. - color_space_family = pCS->GetFamily(); - - FX_FLOAT R, G, B; - uint32_t comps = 8; - if (pCS->CountComponents() > comps) { - comps = pCS->CountComponents(); - } - CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps); - FX_FLOAT* pFloats = float_array; - FX_SAFE_UINT32 num_floats = comps; - num_floats *= sizeof(FX_FLOAT); - if (!num_floats.IsValid()) { - return nullptr; - } - FXSYS_memset(pFloats, 0, num_floats.ValueOrDie()); - size_t count = pBC->GetCount() > 8 ? 8 : pBC->GetCount(); - for (size_t i = 0; i < count; i++) { - pFloats[i] = pBC->GetNumberAt(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->GetDocument()->GetPageData()->ReleaseColorSpace(pCSObj); - } - } - bitmap.Clear(back_color); - } else { - bitmap.Clear(0); - } - CPDF_Dictionary* pFormResource = nullptr; - if (form.m_pFormDict) { - pFormResource = form.m_pFormDict->GetDictFor("Resources"); - } - CPDF_RenderOptions options; - options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA; - CPDF_RenderStatus status; - status.Initialize(m_pContext, &bitmap_device, nullptr, nullptr, nullptr, - nullptr, &options, 0, m_bDropObjects, pFormResource, true, - nullptr, 0, color_space_family, bLuminosity); - status.RenderObjectList(&form, &matrix); - std::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(); -} |