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authorNicolas Pena <npm@chromium.org>2016-11-30 14:56:27 -0500
committerChromium commit bot <commit-bot@chromium.org>2016-12-01 19:02:46 +0000
commit8a463c5a1a2252b5fdbff3b5ab07d50273bbc391 (patch)
treed9c43fcedbbc5b6412eca598b73724a696f41b22 /core/fpdfapi/render/cpdf_devicebuffer.cpp
parent560680ce6d556a720e30bb6229fcb0751a37283e (diff)
downloadpdfium-8a463c5a1a2252b5fdbff3b5ab07d50273bbc391.tar.xz
Remove fpdf_render.cpp
Split the remaining code into files per class. Change-Id: Idb959dbf807223a509e16c76f9626e61856a886b Reviewed-on: https://pdfium-review.googlesource.com/2094 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'core/fpdfapi/render/cpdf_devicebuffer.cpp')
-rw-r--r--core/fpdfapi/render/cpdf_devicebuffer.cpp75
1 files changed, 75 insertions, 0 deletions
diff --git a/core/fpdfapi/render/cpdf_devicebuffer.cpp b/core/fpdfapi/render/cpdf_devicebuffer.cpp
new file mode 100644
index 0000000000..06b4d13c7a
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_devicebuffer.cpp
@@ -0,0 +1,75 @@
+// 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_devicebuffer.h"
+
+#include "core/fpdfapi/page/cpdf_pageobject.h"
+#include "core/fpdfapi/render/cpdf_rendercontext.h"
+#include "core/fpdfapi/render/cpdf_renderoptions.h"
+#include "core/fxge/cfx_fxgedevice.h"
+#include "core/fxge/cfx_renderdevice.h"
+#include "core/fxge/fx_dib.h"
+
+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());
+ }
+ return;
+ }
+ 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());
+}