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// 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 "core/fpdfapi/fpdf_render/include/cpdf_progressiverenderer.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);
}
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