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authornpm <npm@chromium.org>2016-11-21 07:28:42 -0800
committerCommit bot <commit-bot@chromium.org>2016-11-21 07:28:43 -0800
commitca5300a2cb1332dbdcf877653658910ccdad5326 (patch)
tree0cbffc8e05edb58171951a984e1b029b7f9aff38 /core/fpdfapi/render/cpdf_imageloader.cpp
parent88cb0a32586cae4d00654c679dbb41fa0133c3e5 (diff)
downloadpdfium-ca5300a2cb1332dbdcf877653658910ccdad5326.tar.xz
Continue splitting up render_int
Moved CPDF_ImageLoader, CPDF_ImageLoaderHandle, and CPDF_TransferFunc Review-Url: https://codereview.chromium.org/2518553002
Diffstat (limited to 'core/fpdfapi/render/cpdf_imageloader.cpp')
-rw-r--r--core/fpdfapi/render/cpdf_imageloader.cpp136
1 files changed, 136 insertions, 0 deletions
diff --git a/core/fpdfapi/render/cpdf_imageloader.cpp b/core/fpdfapi/render/cpdf_imageloader.cpp
new file mode 100644
index 0000000000..e36a3f1b9c
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_imageloader.cpp
@@ -0,0 +1,136 @@
+// 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_imageloader.h"
+
+#include "core/fpdfapi/page/cpdf_image.h"
+#include "core/fpdfapi/page/cpdf_imageobject.h"
+#include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fpdfapi/render/render_int.h"
+#include "core/fxcrt/fx_basic.h"
+
+class CPDF_ImageLoaderHandle {
+ public:
+ CPDF_ImageLoaderHandle();
+ ~CPDF_ImageLoaderHandle();
+
+ bool Start(CPDF_ImageLoader* pImageLoader,
+ const CPDF_ImageObject* pImage,
+ CPDF_PageRenderCache* pCache,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask,
+ CPDF_RenderStatus* pRenderStatus,
+ int32_t nDownsampleWidth,
+ int32_t nDownsampleHeight);
+ bool Continue(IFX_Pause* pPause);
+
+ private:
+ void HandleFailure();
+
+ CPDF_ImageLoader* m_pImageLoader;
+ CPDF_PageRenderCache* m_pCache;
+ CPDF_ImageObject* m_pImage;
+ int32_t m_nDownsampleWidth;
+ int32_t m_nDownsampleHeight;
+};
+
+CPDF_ImageLoaderHandle::CPDF_ImageLoaderHandle() {
+ m_pImageLoader = nullptr;
+ m_pCache = nullptr;
+ m_pImage = nullptr;
+}
+
+CPDF_ImageLoaderHandle::~CPDF_ImageLoaderHandle() {}
+
+bool CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader,
+ const CPDF_ImageObject* pImage,
+ CPDF_PageRenderCache* pCache,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask,
+ CPDF_RenderStatus* pRenderStatus,
+ int32_t nDownsampleWidth,
+ int32_t nDownsampleHeight) {
+ m_pImageLoader = pImageLoader;
+ m_pCache = pCache;
+ m_pImage = const_cast<CPDF_ImageObject*>(pImage);
+ m_nDownsampleWidth = nDownsampleWidth;
+ m_nDownsampleHeight = nDownsampleHeight;
+ bool ret;
+ if (pCache) {
+ ret = pCache->StartGetCachedBitmap(
+ m_pImage->GetImage()->GetStream(), bStdCS, GroupFamily, bLoadMask,
+ pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
+ } else {
+ ret = m_pImage->GetImage()->StartLoadDIBSource(
+ pRenderStatus->m_pFormResource, pRenderStatus->m_pPageResource, bStdCS,
+ GroupFamily, bLoadMask);
+ }
+ if (!ret)
+ HandleFailure();
+ return ret;
+}
+
+bool CPDF_ImageLoaderHandle::Continue(IFX_Pause* pPause) {
+ bool ret = m_pCache ? m_pCache->Continue(pPause)
+ : m_pImage->GetImage()->Continue(pPause);
+ if (!ret)
+ HandleFailure();
+ return ret;
+}
+
+void CPDF_ImageLoaderHandle::HandleFailure() {
+ if (m_pCache) {
+ CPDF_ImageCacheEntry* entry = m_pCache->GetCurImageCacheEntry();
+ m_pImageLoader->m_bCached = true;
+ m_pImageLoader->m_pBitmap = entry->DetachBitmap();
+ m_pImageLoader->m_pMask = entry->DetachMask();
+ m_pImageLoader->m_MatteColor = entry->m_MatteColor;
+ return;
+ }
+ CPDF_Image* pImage = m_pImage->GetImage();
+ m_pImageLoader->m_bCached = false;
+ m_pImageLoader->m_pBitmap = pImage->DetachBitmap();
+ m_pImageLoader->m_pMask = pImage->DetachMask();
+ m_pImageLoader->m_MatteColor = pImage->m_MatteColor;
+}
+
+CPDF_ImageLoader::CPDF_ImageLoader()
+ : m_pBitmap(nullptr),
+ m_pMask(nullptr),
+ m_MatteColor(0),
+ m_bCached(false),
+ m_nDownsampleWidth(0),
+ m_nDownsampleHeight(0) {}
+
+CPDF_ImageLoader::~CPDF_ImageLoader() {
+ if (!m_bCached) {
+ delete m_pBitmap;
+ delete m_pMask;
+ }
+}
+
+bool CPDF_ImageLoader::Start(const CPDF_ImageObject* pImage,
+ CPDF_PageRenderCache* pCache,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask,
+ CPDF_RenderStatus* pRenderStatus,
+ int32_t nDownsampleWidth,
+ int32_t nDownsampleHeight) {
+ m_nDownsampleWidth = nDownsampleWidth;
+ m_nDownsampleHeight = nDownsampleHeight;
+ m_pLoadHandle.reset(new CPDF_ImageLoaderHandle);
+ return m_pLoadHandle->Start(this, pImage, pCache, bStdCS, GroupFamily,
+ bLoadMask, pRenderStatus, m_nDownsampleWidth,
+ m_nDownsampleHeight);
+}
+
+bool CPDF_ImageLoader::Continue(IFX_Pause* pPause) {
+ return m_pLoadHandle->Continue(pPause);
+}