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authornpm <npm@chromium.org>2016-12-01 15:37:42 -0800
committerCommit bot <commit-bot@chromium.org>2016-12-01 15:37:42 -0800
commitd7ecb5f272de6cdd88ecef4c7b4d0dbee4355610 (patch)
treead01d3ad2236b4671f8a99f699e25b7d26f84531 /core/fpdfapi/render/cpdf_imagecacheentry.cpp
parentf78bf1a54a4afb6486869b4bc5850283225d7055 (diff)
downloadpdfium-d7ecb5f272de6cdd88ecef4c7b4d0dbee4355610.tar.xz
Kill off fpdf_render_cache.cppchromium/2939
Review-Url: https://codereview.chromium.org/2550543002
Diffstat (limited to 'core/fpdfapi/render/cpdf_imagecacheentry.cpp')
-rw-r--r--core/fpdfapi/render/cpdf_imagecacheentry.cpp166
1 files changed, 166 insertions, 0 deletions
diff --git a/core/fpdfapi/render/cpdf_imagecacheentry.cpp b/core/fpdfapi/render/cpdf_imagecacheentry.cpp
new file mode 100644
index 0000000000..93ec162a7c
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_imagecacheentry.cpp
@@ -0,0 +1,166 @@
+// 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/render/cpdf_imagecacheentry.h"
+
+#include <memory>
+#include <utility>
+
+#include "core/fpdfapi/page/cpdf_page.h"
+#include "core/fpdfapi/parser/cpdf_dictionary.h"
+#include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/parser/cpdf_stream.h"
+#include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "core/fpdfapi/render/cpdf_rendercontext.h"
+#include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fpdfapi/render/render_int.h"
+
+CPDF_ImageCacheEntry::CPDF_ImageCacheEntry(CPDF_Document* pDoc,
+ CPDF_Stream* pStream)
+ : m_dwTimeCount(0),
+ m_MatteColor(0),
+ m_pRenderStatus(nullptr),
+ m_pDocument(pDoc),
+ m_pStream(pStream),
+ m_pCurBitmap(nullptr),
+ m_pCurMask(nullptr),
+ m_dwCacheSize(0) {}
+
+CPDF_ImageCacheEntry::~CPDF_ImageCacheEntry() {}
+
+void CPDF_ImageCacheEntry::Reset(const CFX_DIBitmap* pBitmap) {
+ m_pCachedBitmap.reset();
+ if (pBitmap)
+ m_pCachedBitmap = pdfium::WrapUnique<CFX_DIBSource>(pBitmap->Clone());
+ CalcSize();
+}
+
+static uint32_t FPDF_ImageCache_EstimateImageSize(const CFX_DIBSource* pDIB) {
+ return pDIB && pDIB->GetBuffer()
+ ? (uint32_t)pDIB->GetHeight() * pDIB->GetPitch() +
+ (uint32_t)pDIB->GetPaletteSize() * 4
+ : 0;
+}
+
+bool CPDF_ImageCacheEntry::GetCachedBitmap(CFX_DIBSource*& pBitmap,
+ CFX_DIBSource*& pMask,
+ uint32_t& MatteColor,
+ CPDF_Dictionary* pPageResources,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask,
+ CPDF_RenderStatus* pRenderStatus,
+ int32_t downsampleWidth,
+ int32_t downsampleHeight) {
+ if (m_pCachedBitmap) {
+ pBitmap = m_pCachedBitmap.get();
+ pMask = m_pCachedMask.get();
+ MatteColor = m_MatteColor;
+ return true;
+ }
+ if (!pRenderStatus)
+ return false;
+
+ CPDF_RenderContext* pContext = pRenderStatus->GetContext();
+ CPDF_PageRenderCache* pPageRenderCache = pContext->GetPageCache();
+ m_dwTimeCount = pPageRenderCache->GetTimeCount();
+ std::unique_ptr<CPDF_DIBSource> pSrc = pdfium::MakeUnique<CPDF_DIBSource>();
+ CPDF_DIBSource* pMaskSrc = nullptr;
+ if (!pSrc->Load(m_pDocument, m_pStream, &pMaskSrc, &MatteColor,
+ pRenderStatus->m_pFormResource, pPageResources, bStdCS,
+ GroupFamily, bLoadMask)) {
+ pBitmap = nullptr;
+ return false;
+ }
+ m_MatteColor = MatteColor;
+ m_pCachedBitmap = std::move(pSrc);
+ if (pMaskSrc)
+ m_pCachedMask = pdfium::WrapUnique<CFX_DIBSource>(pMaskSrc);
+
+ pBitmap = m_pCachedBitmap.get();
+ pMask = m_pCachedMask.get();
+ CalcSize();
+ return false;
+}
+
+CFX_DIBSource* CPDF_ImageCacheEntry::DetachBitmap() {
+ CFX_DIBSource* pDIBSource = m_pCurBitmap;
+ m_pCurBitmap = nullptr;
+ return pDIBSource;
+}
+
+CFX_DIBSource* CPDF_ImageCacheEntry::DetachMask() {
+ CFX_DIBSource* pDIBSource = m_pCurMask;
+ m_pCurMask = nullptr;
+ return pDIBSource;
+}
+
+int CPDF_ImageCacheEntry::StartGetCachedBitmap(CPDF_Dictionary* pFormResources,
+ CPDF_Dictionary* pPageResources,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask,
+ CPDF_RenderStatus* pRenderStatus,
+ int32_t downsampleWidth,
+ int32_t downsampleHeight) {
+ if (m_pCachedBitmap) {
+ m_pCurBitmap = m_pCachedBitmap.get();
+ m_pCurMask = m_pCachedMask.get();
+ return 1;
+ }
+ if (!pRenderStatus)
+ return 0;
+
+ m_pRenderStatus = pRenderStatus;
+ m_pCurBitmap = new CPDF_DIBSource;
+ int ret =
+ ((CPDF_DIBSource*)m_pCurBitmap)
+ ->StartLoadDIBSource(m_pDocument, m_pStream, true, pFormResources,
+ pPageResources, bStdCS, GroupFamily, bLoadMask);
+ if (ret == 2)
+ return ret;
+
+ if (!ret) {
+ delete m_pCurBitmap;
+ m_pCurBitmap = nullptr;
+ return 0;
+ }
+ ContinueGetCachedBitmap();
+ return 0;
+}
+
+void CPDF_ImageCacheEntry::ContinueGetCachedBitmap() {
+ m_MatteColor = ((CPDF_DIBSource*)m_pCurBitmap)->GetMatteColor();
+ m_pCurMask = ((CPDF_DIBSource*)m_pCurBitmap)->DetachMask();
+ CPDF_RenderContext* pContext = m_pRenderStatus->GetContext();
+ CPDF_PageRenderCache* pPageRenderCache = pContext->GetPageCache();
+ m_dwTimeCount = pPageRenderCache->GetTimeCount();
+ m_pCachedBitmap = pdfium::WrapUnique<CFX_DIBSource>(m_pCurBitmap);
+ if (m_pCurMask)
+ m_pCachedMask = pdfium::WrapUnique<CFX_DIBSource>(m_pCurMask);
+ else
+ m_pCurMask = m_pCachedMask.get();
+ CalcSize();
+}
+
+int CPDF_ImageCacheEntry::Continue(IFX_Pause* pPause) {
+ int ret = ((CPDF_DIBSource*)m_pCurBitmap)->ContinueLoadDIBSource(pPause);
+ if (ret == 2)
+ return ret;
+
+ if (!ret) {
+ delete m_pCurBitmap;
+ m_pCurBitmap = nullptr;
+ return 0;
+ }
+ ContinueGetCachedBitmap();
+ return 0;
+}
+
+void CPDF_ImageCacheEntry::CalcSize() {
+ m_dwCacheSize = FPDF_ImageCache_EstimateImageSize(m_pCachedBitmap.get()) +
+ FPDF_ImageCache_EstimateImageSize(m_pCachedMask.get());
+}