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authorBo Xu <bo_xu@foxitsoftware.com>2014-10-28 23:03:33 -0700
committerBo Xu <bo_xu@foxitsoftware.com>2014-11-03 11:10:11 -0800
commitfdc00a7042d912aafaabddae4d9c84199921ef23 (patch)
tree32ab8ac91cc68d2cd15b9168782a71b3f3f5e7b9 /xfa_test/pdf/pdf.cc
parente9b38fa38de2c95d8260be31c57d9272c4d127ed (diff)
downloadpdfium-fdc00a7042d912aafaabddae4d9c84199921ef23.tar.xz
Merge XFA to PDFium master at 4dc95e7 on 10/28/2014
Diffstat (limited to 'xfa_test/pdf/pdf.cc')
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1 files changed, 275 insertions, 0 deletions
diff --git a/xfa_test/pdf/pdf.cc b/xfa_test/pdf/pdf.cc
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "pdf/pdf.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#endif
+
+#include "base/command_line.h"
+#include "base/logging.h"
+#include "pdf/instance.h"
+#include "pdf/out_of_process_instance.h"
+#include "ppapi/c/ppp.h"
+#include "ppapi/cpp/private/pdf.h"
+
+bool g_sdk_initialized_via_pepper = false;
+
+// The Mac release builds discard CreateModule and the entire PDFModule
+// definition because they are not referenced here. This causes the Pepper
+// exports (PPP_GetInterface etc) to not be exported. So we force the linker
+// to include this code by using __attribute__((used)).
+#if __GNUC__ >= 4
+#define PDF_USED __attribute__((used))
+#else
+#define PDF_USED
+#endif
+
+#if defined(OS_WIN)
+HMODULE g_hmodule;
+
+void HandleInvalidParameter(const wchar_t* expression,
+ const wchar_t* function,
+ const wchar_t* file,
+ unsigned int line,
+ uintptr_t reserved) {
+ // Do the same as Chrome's CHECK(false) which is undefined.
+ ::base::debug::BreakDebugger();
+ return;
+}
+
+void HandlePureVirtualCall() {
+ // Do the same as Chrome's CHECK(false) which is undefined.
+ ::base::debug::BreakDebugger();
+ return;
+}
+
+
+BOOL APIENTRY DllMain(HMODULE module, DWORD reason_for_call, LPVOID reserved) {
+ g_hmodule = module;
+ if (reason_for_call == DLL_PROCESS_ATTACH) {
+ // On windows following handlers work only inside module. So breakpad in
+ // chrome.dll does not catch that. To avoid linking related code or
+ // duplication breakpad_win.cc::InitCrashReporter() just catch errors here
+ // and crash in a way interceptable by breakpad of parent module.
+ _set_invalid_parameter_handler(HandleInvalidParameter);
+ _set_purecall_handler(HandlePureVirtualCall);
+ }
+ return TRUE;
+}
+
+#endif
+
+namespace pp {
+
+PDF_USED Module* CreateModule() {
+ return new chrome_pdf::PDFModule();
+}
+
+} // namespace pp
+
+namespace chrome_pdf {
+
+PDFModule::PDFModule() {
+}
+
+PDFModule::~PDFModule() {
+ if (g_sdk_initialized_via_pepper) {
+ chrome_pdf::ShutdownSDK();
+ g_sdk_initialized_via_pepper = false;
+ }
+}
+
+bool PDFModule::Init() {
+ return true;
+}
+
+pp::Instance* PDFModule::CreateInstance(PP_Instance instance) {
+ if (!g_sdk_initialized_via_pepper) {
+ void* data = NULL;
+#if defined(OS_WIN)
+ data = g_hmodule;
+#endif
+ if (!chrome_pdf::InitializeSDK(data))
+ return NULL;
+ g_sdk_initialized_via_pepper = true;
+ }
+
+ if (pp::PDF::IsOutOfProcess(pp::InstanceHandle(instance)))
+ return new OutOfProcessInstance(instance);
+ return new Instance(instance);
+}
+
+} // namespace chrome_pdf
+
+extern "C" {
+
+// TODO(sanjeevr): It might make sense to provide more stateful wrappers over
+// the internal PDF SDK (such as LoadDocument, LoadPage etc). Determine if we
+// need to provide this.
+// Wrapper exports over the PDF engine that can be used by an external module
+// such as Chrome (since Chrome cannot directly pull in PDFium sources).
+#if defined(OS_WIN)
+// |pdf_buffer| is the buffer that contains the entire PDF document to be
+// rendered.
+// |buffer_size| is the size of |pdf_buffer| in bytes.
+// |page_number| is the 0-based index of the page to be rendered.
+// |dc| is the device context to render into.
+// |dpi_x| and |dpi_y| are the x and y resolutions respectively. If either
+// value is -1, the dpi from the DC will be used.
+// |bounds_origin_x|, |bounds_origin_y|, |bounds_width| and |bounds_height|
+// specify a bounds rectangle within the DC in which to render the PDF
+// page.
+// |fit_to_bounds| specifies whether the output should be shrunk to fit the
+// supplied bounds if the page size is larger than the bounds in any
+// dimension. If this is false, parts of the PDF page that lie outside
+// the bounds will be clipped.
+// |stretch_to_bounds| specifies whether the output should be stretched to fit
+// the supplied bounds if the page size is smaller than the bounds in any
+// dimension.
+// If both |fit_to_bounds| and |stretch_to_bounds| are true, then
+// |fit_to_bounds| is honored first.
+// |keep_aspect_ratio| If any scaling is to be done is true, this flag
+// specifies whether the original aspect ratio of the page should be
+// preserved while scaling.
+// |center_in_bounds| specifies whether the final image (after any scaling is
+// done) should be centered within the given bounds.
+// |autorotate| specifies whether the final image should be rotated to match
+// the output bound.
+// Returns false if the document or the page number are not valid.
+PP_EXPORT bool RenderPDFPageToDC(const void* pdf_buffer,
+ int buffer_size,
+ int page_number,
+ HDC dc,
+ int dpi_x,
+ int dpi_y,
+ int bounds_origin_x,
+ int bounds_origin_y,
+ int bounds_width,
+ int bounds_height,
+ bool fit_to_bounds,
+ bool stretch_to_bounds,
+ bool keep_aspect_ratio,
+ bool center_in_bounds,
+ bool autorotate) {
+ if (!g_sdk_initialized_via_pepper) {
+ if (!chrome_pdf::InitializeSDK(g_hmodule)) {
+ return false;
+ }
+ }
+ scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
+ chrome_pdf::PDFEngineExports::Create());
+ chrome_pdf::PDFEngineExports::RenderingSettings settings(
+ dpi_x, dpi_y, pp::Rect(bounds_origin_x, bounds_origin_y, bounds_width,
+ bounds_height),
+ fit_to_bounds, stretch_to_bounds, keep_aspect_ratio, center_in_bounds,
+ autorotate);
+ bool ret = engine_exports->RenderPDFPageToDC(pdf_buffer, buffer_size,
+ page_number, settings, dc);
+ if (!g_sdk_initialized_via_pepper) {
+ chrome_pdf::ShutdownSDK();
+ }
+ return ret;
+}
+
+#endif // OS_WIN
+
+// |page_count| and |max_page_width| are optional and can be NULL.
+// Returns false if the document is not valid.
+PDF_USED PP_EXPORT
+bool GetPDFDocInfo(const void* pdf_buffer,
+ int buffer_size, int* page_count,
+ double* max_page_width) {
+ if (!g_sdk_initialized_via_pepper) {
+ void* data = NULL;
+#if defined(OS_WIN)
+ data = g_hmodule;
+#endif
+ if (!chrome_pdf::InitializeSDK(data))
+ return false;
+ }
+ scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
+ chrome_pdf::PDFEngineExports::Create());
+ bool ret = engine_exports->GetPDFDocInfo(
+ pdf_buffer, buffer_size, page_count, max_page_width);
+ if (!g_sdk_initialized_via_pepper) {
+ chrome_pdf::ShutdownSDK();
+ }
+ return ret;
+}
+
+// Gets the dimensions of a specific page in a document.
+// |pdf_buffer| is the buffer that contains the entire PDF document to be
+// rendered.
+// |pdf_buffer_size| is the size of |pdf_buffer| in bytes.
+// |page_number| is the page number that the function will get the dimensions
+// of.
+// |width| is the output for the width of the page in points.
+// |height| is the output for the height of the page in points.
+// Returns false if the document or the page number are not valid.
+PDF_USED PP_EXPORT
+bool GetPDFPageSizeByIndex(const void* pdf_buffer,
+ int pdf_buffer_size, int page_number,
+ double* width, double* height) {
+ if (!g_sdk_initialized_via_pepper) {
+ void* data = NULL;
+#if defined(OS_WIN)
+ data = g_hmodule;
+#endif
+ if (!chrome_pdf::InitializeSDK(data))
+ return false;
+ }
+ scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
+ chrome_pdf::PDFEngineExports::Create());
+ bool ret = engine_exports->GetPDFPageSizeByIndex(
+ pdf_buffer, pdf_buffer_size, page_number, width, height);
+ if (!g_sdk_initialized_via_pepper)
+ chrome_pdf::ShutdownSDK();
+ return ret;
+}
+
+// Renders PDF page into 4-byte per pixel BGRA color bitmap.
+// |pdf_buffer| is the buffer that contains the entire PDF document to be
+// rendered.
+// |pdf_buffer_size| is the size of |pdf_buffer| in bytes.
+// |page_number| is the 0-based index of the page to be rendered.
+// |bitmap_buffer| is the output buffer for bitmap.
+// |bitmap_width| is the width of the output bitmap.
+// |bitmap_height| is the height of the output bitmap.
+// |dpi| is the resolutions.
+// |autorotate| specifies whether the final image should be rotated to match
+// the output bound.
+// Returns false if the document or the page number are not valid.
+PDF_USED PP_EXPORT
+bool RenderPDFPageToBitmap(const void* pdf_buffer,
+ int pdf_buffer_size,
+ int page_number,
+ void* bitmap_buffer,
+ int bitmap_width,
+ int bitmap_height,
+ int dpi,
+ bool autorotate) {
+ if (!g_sdk_initialized_via_pepper) {
+ void* data = NULL;
+#if defined(OS_WIN)
+ data = g_hmodule;
+#endif
+ if (!chrome_pdf::InitializeSDK(data))
+ return false;
+ }
+ scoped_ptr<chrome_pdf::PDFEngineExports> engine_exports(
+ chrome_pdf::PDFEngineExports::Create());
+ chrome_pdf::PDFEngineExports::RenderingSettings settings(
+ dpi, dpi, pp::Rect(bitmap_width, bitmap_height), true, false, true, true,
+ autorotate);
+ bool ret = engine_exports->RenderPDFPageToBitmap(
+ pdf_buffer, pdf_buffer_size, page_number, settings, bitmap_buffer);
+ if (!g_sdk_initialized_via_pepper) {
+ chrome_pdf::ShutdownSDK();
+ }
+ return ret;
+}
+
+} // extern "C"