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Diffstat (limited to 'core/fpdfapi/render/fpdf_render.cpp')
| -rw-r--r-- | core/fpdfapi/render/fpdf_render.cpp | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/core/fpdfapi/render/fpdf_render.cpp b/core/fpdfapi/render/fpdf_render.cpp deleted file mode 100644 index ba5d836e95..0000000000 --- a/core/fpdfapi/render/fpdf_render.cpp +++ /dev/null @@ -1,402 +0,0 @@ -// Copyright 2014 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/render/render_int.h" - -#include <memory> - -#include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/font/cpdf_type3char.h" -#include "core/fpdfapi/font/cpdf_type3font.h" -#include "core/fpdfapi/page/cpdf_docpagedata.h" -#include "core/fpdfapi/page/cpdf_form.h" -#include "core/fpdfapi/page/cpdf_formobject.h" -#include "core/fpdfapi/page/cpdf_graphicstates.h" -#include "core/fpdfapi/page/cpdf_image.h" -#include "core/fpdfapi/page/cpdf_imageobject.h" -#include "core/fpdfapi/page/cpdf_page.h" -#include "core/fpdfapi/page/cpdf_pageobject.h" -#include "core/fpdfapi/page/cpdf_pathobject.h" -#include "core/fpdfapi/page/cpdf_textobject.h" -#include "core/fpdfapi/page/pageint.h" -#include "core/fpdfapi/parser/cpdf_array.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" -#include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/render/cpdf_docrenderdata.h" -#include "core/fpdfapi/render/cpdf_pagerendercache.h" -#include "core/fpdfapi/render/cpdf_progressiverenderer.h" -#include "core/fpdfapi/render/cpdf_renderoptions.h" -#include "core/fpdfapi/render/cpdf_renderstatus.h" -#include "core/fpdfapi/render/cpdf_textrenderer.h" -#include "core/fpdfapi/render/cpdf_type3cache.h" -#include "core/fpdfdoc/cpdf_occontext.h" -#include "core/fxge/cfx_fxgedevice.h" -#include "core/fxge/cfx_graphstatedata.h" -#include "core/fxge/cfx_pathdata.h" -#include "core/fxge/cfx_renderdevice.h" - -CPDF_RenderOptions::CPDF_RenderOptions() - : m_ColorMode(RENDER_COLOR_NORMAL), - m_Flags(RENDER_CLEARTYPE), - m_Interpolation(0), - m_AddFlags(0), - m_pOCContext(nullptr), - m_dwLimitCacheSize(1024 * 1024 * 100), - m_HalftoneLimit(-1), - m_bDrawAnnots(false) {} - -CPDF_RenderOptions::CPDF_RenderOptions(const CPDF_RenderOptions& rhs) - : m_ColorMode(rhs.m_ColorMode), - m_BackColor(rhs.m_BackColor), - m_ForeColor(rhs.m_ForeColor), - m_Flags(rhs.m_Flags), - m_Interpolation(rhs.m_Interpolation), - m_AddFlags(rhs.m_AddFlags), - m_pOCContext(rhs.m_pOCContext), - m_dwLimitCacheSize(rhs.m_dwLimitCacheSize), - m_HalftoneLimit(rhs.m_HalftoneLimit), - m_bDrawAnnots(rhs.m_bDrawAnnots) {} - -FX_ARGB CPDF_RenderOptions::TranslateColor(FX_ARGB argb) const { - if (m_ColorMode == RENDER_COLOR_NORMAL) { - return argb; - } - if (m_ColorMode == RENDER_COLOR_ALPHA) { - return argb; - } - int a, r, g, b; - ArgbDecode(argb, a, r, g, b); - int gray = FXRGB2GRAY(r, g, b); - if (m_ColorMode == RENDER_COLOR_TWOCOLOR) { - int color = (r - gray) * (r - gray) + (g - gray) * (g - gray) + - (b - gray) * (b - gray); - if (gray < 35 && color < 20) { - return ArgbEncode(a, m_ForeColor); - } - if (gray > 221 && color < 20) { - return ArgbEncode(a, m_BackColor); - } - return argb; - } - int fr = FXSYS_GetRValue(m_ForeColor); - int fg = FXSYS_GetGValue(m_ForeColor); - int fb = FXSYS_GetBValue(m_ForeColor); - int br = FXSYS_GetRValue(m_BackColor); - int bg = FXSYS_GetGValue(m_BackColor); - int bb = FXSYS_GetBValue(m_BackColor); - r = (br - fr) * gray / 255 + fr; - g = (bg - fg) * gray / 255 + fg; - b = (bb - fb) * gray / 255 + fb; - return ArgbEncode(a, r, g, b); -} - -void CPDF_RenderContext::GetBackground(CFX_DIBitmap* pBuffer, - const CPDF_PageObject* pObj, - const CPDF_RenderOptions* pOptions, - CFX_Matrix* pFinalMatrix) { - CFX_FxgeDevice device; - device.Attach(pBuffer, false, nullptr, false); - - FX_RECT rect(0, 0, device.GetWidth(), device.GetHeight()); - device.FillRect(&rect, 0xffffffff); - Render(&device, pObj, pOptions, pFinalMatrix); -} - -CPDF_RenderContext::CPDF_RenderContext(CPDF_Page* pPage) - : m_pDocument(pPage->m_pDocument), - m_pPageResources(pPage->m_pPageResources), - m_pPageCache(pPage->GetRenderCache()) {} - -CPDF_RenderContext::CPDF_RenderContext(CPDF_Document* pDoc, - CPDF_PageRenderCache* pPageCache) - : m_pDocument(pDoc), m_pPageResources(nullptr), m_pPageCache(pPageCache) {} - -CPDF_RenderContext::~CPDF_RenderContext() {} - -void CPDF_RenderContext::AppendLayer(CPDF_PageObjectHolder* pObjectHolder, - const CFX_Matrix* pObject2Device) { - Layer* pLayer = m_Layers.AddSpace(); - pLayer->m_pObjectHolder = pObjectHolder; - if (pObject2Device) { - pLayer->m_Matrix = *pObject2Device; - } else { - pLayer->m_Matrix.SetIdentity(); - } -} -void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice, - const CPDF_RenderOptions* pOptions, - const CFX_Matrix* pLastMatrix) { - Render(pDevice, nullptr, pOptions, pLastMatrix); -} -void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice, - const CPDF_PageObject* pStopObj, - const CPDF_RenderOptions* pOptions, - const CFX_Matrix* pLastMatrix) { - int count = m_Layers.GetSize(); - for (int j = 0; j < count; j++) { - pDevice->SaveState(); - Layer* pLayer = m_Layers.GetDataPtr(j); - if (pLastMatrix) { - CFX_Matrix FinalMatrix = pLayer->m_Matrix; - FinalMatrix.Concat(*pLastMatrix); - CPDF_RenderStatus status; - status.Initialize(this, pDevice, pLastMatrix, pStopObj, nullptr, nullptr, - pOptions, pLayer->m_pObjectHolder->m_Transparency, - false, nullptr); - status.RenderObjectList(pLayer->m_pObjectHolder, &FinalMatrix); - if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) { - m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize); - } - if (status.m_bStopped) { - pDevice->RestoreState(false); - break; - } - } else { - CPDF_RenderStatus status; - status.Initialize(this, pDevice, nullptr, pStopObj, nullptr, nullptr, - pOptions, pLayer->m_pObjectHolder->m_Transparency, - false, nullptr); - status.RenderObjectList(pLayer->m_pObjectHolder, &pLayer->m_Matrix); - if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) { - m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize); - } - if (status.m_bStopped) { - pDevice->RestoreState(false); - break; - } - } - pDevice->RestoreState(false); - } -} - -CPDF_ProgressiveRenderer::CPDF_ProgressiveRenderer( - CPDF_RenderContext* pContext, - CFX_RenderDevice* pDevice, - const CPDF_RenderOptions* pOptions) - : m_Status(Ready), - m_pContext(pContext), - m_pDevice(pDevice), - m_pOptions(pOptions), - m_LayerIndex(0), - m_pCurrentLayer(nullptr) {} - -CPDF_ProgressiveRenderer::~CPDF_ProgressiveRenderer() { - if (m_pRenderStatus) - m_pDevice->RestoreState(false); -} - -void CPDF_ProgressiveRenderer::Start(IFX_Pause* pPause) { - if (!m_pContext || !m_pDevice || m_Status != Ready) { - m_Status = Failed; - return; - } - m_Status = ToBeContinued; - Continue(pPause); -} - -void CPDF_ProgressiveRenderer::Continue(IFX_Pause* pPause) { - while (m_Status == ToBeContinued) { - if (!m_pCurrentLayer) { - if (m_LayerIndex >= m_pContext->CountLayers()) { - m_Status = Done; - return; - } - m_pCurrentLayer = m_pContext->GetLayer(m_LayerIndex); - m_LastObjectRendered = - m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end(); - m_pRenderStatus.reset(new CPDF_RenderStatus()); - m_pRenderStatus->Initialize( - m_pContext, m_pDevice, nullptr, nullptr, nullptr, nullptr, m_pOptions, - m_pCurrentLayer->m_pObjectHolder->m_Transparency, false, nullptr); - m_pDevice->SaveState(); - m_ClipRect = CFX_FloatRect(m_pDevice->GetClipBox()); - CFX_Matrix device2object; - device2object.SetReverse(m_pCurrentLayer->m_Matrix); - device2object.TransformRect(m_ClipRect); - } - CPDF_PageObjectList::iterator iter; - CPDF_PageObjectList::iterator iterEnd = - m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end(); - if (m_LastObjectRendered != iterEnd) { - iter = m_LastObjectRendered; - ++iter; - } else { - iter = m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->begin(); - } - int nObjsToGo = kStepLimit; - while (iter != iterEnd) { - CPDF_PageObject* pCurObj = iter->get(); - if (pCurObj && pCurObj->m_Left <= m_ClipRect.right && - pCurObj->m_Right >= m_ClipRect.left && - pCurObj->m_Bottom <= m_ClipRect.top && - pCurObj->m_Top >= m_ClipRect.bottom) { - if (m_pRenderStatus->ContinueSingleObject( - pCurObj, &m_pCurrentLayer->m_Matrix, pPause)) { - return; - } - if (pCurObj->IsImage() && - m_pRenderStatus->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) { - m_pContext->GetPageCache()->CacheOptimization( - m_pRenderStatus->m_Options.m_dwLimitCacheSize); - } - if (pCurObj->IsForm() || pCurObj->IsShading()) { - nObjsToGo = 0; - } else { - --nObjsToGo; - } - } - m_LastObjectRendered = iter; - if (nObjsToGo == 0) { - if (pPause && pPause->NeedToPauseNow()) - return; - nObjsToGo = kStepLimit; - } - ++iter; - } - if (m_pCurrentLayer->m_pObjectHolder->IsParsed()) { - m_pRenderStatus.reset(); - m_pDevice->RestoreState(false); - m_pCurrentLayer = nullptr; - m_LayerIndex++; - if (pPause && pPause->NeedToPauseNow()) { - return; - } - } else { - m_pCurrentLayer->m_pObjectHolder->ContinueParse(pPause); - if (!m_pCurrentLayer->m_pObjectHolder->IsParsed()) - return; - } - } -} - -CPDF_DeviceBuffer::CPDF_DeviceBuffer() - : m_pDevice(nullptr), m_pContext(nullptr), m_pObject(nullptr) {} - -CPDF_DeviceBuffer::~CPDF_DeviceBuffer() {} - -bool CPDF_DeviceBuffer::Initialize(CPDF_RenderContext* pContext, - CFX_RenderDevice* pDevice, - FX_RECT* pRect, - const CPDF_PageObject* pObj, - int max_dpi) { - m_pDevice = pDevice; - m_pContext = pContext; - m_Rect = *pRect; - m_pObject = pObj; - m_Matrix.TranslateI(-pRect->left, -pRect->top); -#if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ - 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); - } - } -#endif - CFX_Matrix ctm = m_pDevice->GetCTM(); - FX_FLOAT fScaleX = FXSYS_fabs(ctm.a); - FX_FLOAT fScaleY = FXSYS_fabs(ctm.d); - m_Matrix.Concat(fScaleX, 0, 0, fScaleY, 0, 0); - CFX_FloatRect rect(*pRect); - m_Matrix.TransformRect(rect); - FX_RECT bitmap_rect = rect.GetOuterRect(); - m_pBitmap.reset(new CFX_DIBitmap); - m_pBitmap->Create(bitmap_rect.Width(), bitmap_rect.Height(), FXDIB_Argb); - return true; -} -void CPDF_DeviceBuffer::OutputToDevice() { - if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_GET_BITS) { - if (m_Matrix.a == 1.0f && m_Matrix.d == 1.0f) { - m_pDevice->SetDIBits(m_pBitmap.get(), m_Rect.left, m_Rect.top); - } else { - m_pDevice->StretchDIBits(m_pBitmap.get(), m_Rect.left, m_Rect.top, - m_Rect.Width(), m_Rect.Height()); - } - } else { - CFX_DIBitmap buffer; - m_pDevice->CreateCompatibleBitmap(&buffer, m_pBitmap->GetWidth(), - m_pBitmap->GetHeight()); - m_pContext->GetBackground(&buffer, m_pObject, nullptr, &m_Matrix); - buffer.CompositeBitmap(0, 0, buffer.GetWidth(), buffer.GetHeight(), - m_pBitmap.get(), 0, 0); - m_pDevice->StretchDIBits(&buffer, m_Rect.left, m_Rect.top, m_Rect.Width(), - m_Rect.Height()); - } -} - -CPDF_ScaledRenderBuffer::CPDF_ScaledRenderBuffer() {} - -CPDF_ScaledRenderBuffer::~CPDF_ScaledRenderBuffer() {} - -#define _FPDFAPI_IMAGESIZE_LIMIT_ (30 * 1024 * 1024) -bool CPDF_ScaledRenderBuffer::Initialize(CPDF_RenderContext* pContext, - CFX_RenderDevice* pDevice, - const FX_RECT& pRect, - const CPDF_PageObject* pObj, - const CPDF_RenderOptions* pOptions, - int max_dpi) { - 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; - } - while (1) { - CFX_FloatRect rect(pRect); - m_Matrix.TransformRect(rect); - FX_RECT bitmap_rect = rect.GetOuterRect(); - int32_t iWidth = bitmap_rect.Width(); - int32_t iHeight = bitmap_rect.Height(); - int32_t iPitch = (iWidth * bpp + 31) / 32 * 4; - if (iWidth * iHeight < 1) - return false; - - if (iPitch * iHeight <= _FPDFAPI_IMAGESIZE_LIMIT_ && - m_pBitmapDevice->Create(iWidth, iHeight, dibFormat, nullptr)) { - break; - } - m_Matrix.Scale(0.5f, 0.5f); - } - m_pContext->GetBackground(m_pBitmapDevice->GetBitmap(), m_pObject, pOptions, - &m_Matrix); - return true; -} -void CPDF_ScaledRenderBuffer::OutputToDevice() { - if (m_pBitmapDevice) { - m_pDevice->StretchDIBits(m_pBitmapDevice->GetBitmap(), m_Rect.left, - m_Rect.top, m_Rect.Width(), m_Rect.Height()); - } -} |