1 files changed, 100 insertions, 0 deletions
diff --git a/fpdfsdk/fpdf_progressive.cpp b/fpdfsdk/fpdf_progressive.cpp
new file mode 100644
index 0000000000..b6fd8e071e
--- /dev/null
+++ b/fpdfsdk/fpdf_progressive.cpp
@@ -0,0 +1,100 @@
+// 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 "public/fpdf_progressive.h"
+
+#include "fpdfsdk/include/fsdk_define.h"
+#include "fpdfsdk/include/fsdk_rendercontext.h"
+#include "public/fpdfview.h"
+
+// These checks are here because core/ and public/ cannot depend on each other.
+static_assert(CPDF_ProgressiveRenderer::Ready == FPDF_RENDER_READER,
+              "CPDF_ProgressiveRenderer::Ready value mismatch");
+static_assert(CPDF_ProgressiveRenderer::ToBeContinued ==
+                  FPDF_RENDER_TOBECOUNTINUED,
+              "CPDF_ProgressiveRenderer::ToBeContinued value mismatch");
+static_assert(CPDF_ProgressiveRenderer::Done == FPDF_RENDER_DONE,
+              "CPDF_ProgressiveRenderer::Done value mismatch");
+static_assert(CPDF_ProgressiveRenderer::Failed == FPDF_RENDER_FAILED,
+              "CPDF_ProgressiveRenderer::Failed value mismatch");
+
+DLLEXPORT int STDCALL FPDF_RenderPageBitmap_Start(FPDF_BITMAP bitmap,
+                                                  FPDF_PAGE page,
+                                                  int start_x,
+                                                  int start_y,
+                                                  int size_x,
+                                                  int size_y,
+                                                  int rotate,
+                                                  int flags,
+                                                  IFSDK_PAUSE* pause) {
+  if (!bitmap || !pause || pause->version != 1)
+    return FPDF_RENDER_FAILED;
+
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return FPDF_RENDER_FAILED;
+
+  CRenderContext* pContext = new CRenderContext;
+  pPage->SetPrivateData((void*)1, pContext, DropContext);
+#ifdef _SKIA_SUPPORT_
+  pContext->m_pDevice = new CFX_SkiaDevice;
+  if (flags & FPDF_REVERSE_BYTE_ORDER)
+    ((CFX_SkiaDevice*)pContext->m_pDevice)
+        ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE);
+  else
+    ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
+#else
+  pContext->m_pDevice = new CFX_FxgeDevice;
+  if (flags & FPDF_REVERSE_BYTE_ORDER)
+    ((CFX_FxgeDevice*)pContext->m_pDevice)
+        ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE);
+  else
+    ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
+#endif
+  IFSDK_PAUSE_Adapter IPauseAdapter(pause);
+
+  FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
+                         rotate, flags, FALSE, &IPauseAdapter);
+
+  if (pContext->m_pRenderer) {
+    return CPDF_ProgressiveRenderer::ToFPDFStatus(
+        pContext->m_pRenderer->GetStatus());
+  }
+  return FPDF_RENDER_FAILED;
+}
+
+DLLEXPORT int STDCALL FPDF_RenderPage_Continue(FPDF_PAGE page,
+                                               IFSDK_PAUSE* pause) {
+  if (!pause || pause->version != 1)
+    return FPDF_RENDER_FAILED;
+
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return FPDF_RENDER_FAILED;
+
+  CRenderContext* pContext = (CRenderContext*)pPage->GetPrivateData((void*)1);
+  if (pContext && pContext->m_pRenderer) {
+    IFSDK_PAUSE_Adapter IPauseAdapter(pause);
+    pContext->m_pRenderer->Continue(&IPauseAdapter);
+    return CPDF_ProgressiveRenderer::ToFPDFStatus(
+        pContext->m_pRenderer->GetStatus());
+  }
+  return FPDF_RENDER_FAILED;
+}
+
+DLLEXPORT void STDCALL FPDF_RenderPage_Close(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return;
+
+  CRenderContext* pContext = (CRenderContext*)pPage->GetPrivateData((void*)1);
+  if (!pContext)
+    return;
+
+  pContext->m_pDevice->RestoreState();
+  delete pContext;
+  pPage->RemovePrivateData((void*)1);
+}