| // 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 <limits.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <list> |
| #include <sstream> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "../public/fpdf_dataavail.h" |
| #include "../public/fpdf_ext.h" |
| #include "../public/fpdf_formfill.h" |
| #include "../public/fpdf_text.h" |
| #include "../public/fpdfview.h" |
| #include "image_diff_png.h" |
| #include "v8/include/libplatform/libplatform.h" |
| #include "v8/include/v8.h" |
| |
| #ifdef _WIN32 |
| #define snprintf _snprintf |
| #define PATH_SEPARATOR '\\' |
| #else |
| #define PATH_SEPARATOR '/' |
| #endif |
| |
| enum OutputFormat { |
| OUTPUT_NONE, |
| OUTPUT_PPM, |
| OUTPUT_PNG, |
| #ifdef _WIN32 |
| OUTPUT_BMP, |
| OUTPUT_EMF, |
| #endif |
| }; |
| |
| struct Options { |
| Options() : output_format(OUTPUT_NONE) { } |
| |
| OutputFormat output_format; |
| std::string scale_factor_as_string; |
| std::string exe_path; |
| std::string bin_directory; |
| }; |
| |
| // Reads the entire contents of a file into a newly malloc'd buffer. |
| static char* GetFileContents(const char* filename, size_t* retlen) { |
| FILE* file = fopen(filename, "rb"); |
| if (!file) { |
| fprintf(stderr, "Failed to open: %s\n", filename); |
| return NULL; |
| } |
| (void) fseek(file, 0, SEEK_END); |
| size_t file_length = ftell(file); |
| if (!file_length) { |
| return NULL; |
| } |
| (void) fseek(file, 0, SEEK_SET); |
| char* buffer = (char*) malloc(file_length); |
| if (!buffer) { |
| return NULL; |
| } |
| size_t bytes_read = fread(buffer, 1, file_length, file); |
| (void) fclose(file); |
| if (bytes_read != file_length) { |
| fprintf(stderr, "Failed to read: %s\n", filename); |
| free(buffer); |
| return NULL; |
| } |
| *retlen = bytes_read; |
| return buffer; |
| } |
| |
| #ifdef V8_USE_EXTERNAL_STARTUP_DATA |
| // Returns the full path for an external V8 data file based on either |
| // the currect exectuable path or an explicit override. |
| static std::string GetFullPathForSnapshotFile(const Options& options, |
| const std::string& filename) { |
| std::string result; |
| if (!options.bin_directory.empty()) { |
| result = options.bin_directory; |
| if (*options.bin_directory.rbegin() != PATH_SEPARATOR) { |
| result += PATH_SEPARATOR; |
| } |
| } else if (!options.exe_path.empty()) { |
| size_t last_separator = options.exe_path.rfind(PATH_SEPARATOR); |
| if (last_separator != std::string::npos) { |
| result = options.exe_path.substr(0, last_separator + 1); |
| } |
| } |
| result += filename; |
| return result; |
| } |
| |
| // Reads an extenal V8 data file from the |options|-indicated location, |
| // returing true on success and false on error. |
| static bool GetExternalData(const Options& options, |
| const std::string& bin_filename, |
| v8::StartupData* result_data) { |
| std::string full_path = GetFullPathForSnapshotFile(options, bin_filename); |
| size_t data_length = 0; |
| char* data_buffer = GetFileContents(full_path.c_str(), &data_length); |
| if (!data_buffer) { |
| return false; |
| } |
| result_data->data = const_cast<const char*>(data_buffer); |
| result_data->raw_size = static_cast<int>(data_length); |
| return true; |
| } |
| #endif // V8_USE_EXTERNAL_STARTUP_DATA |
| |
| static bool CheckDimensions(int stride, int width, int height) { |
| if (stride < 0 || width < 0 || height < 0) |
| return false; |
| if (height > 0 && width > INT_MAX / height) |
| return false; |
| return true; |
| } |
| |
| static void WritePpm(const char* pdf_name, int num, const void* buffer_void, |
| int stride, int width, int height) { |
| const char* buffer = reinterpret_cast<const char*>(buffer_void); |
| |
| if (!CheckDimensions(stride, width, height)) |
| return; |
| |
| int out_len = width * height; |
| if (out_len > INT_MAX / 3) |
| return; |
| out_len *= 3; |
| |
| char filename[256]; |
| snprintf(filename, sizeof(filename), "%s.%d.ppm", pdf_name, num); |
| FILE* fp = fopen(filename, "wb"); |
| if (!fp) |
| return; |
| fprintf(fp, "P6\n# PDF test render\n%d %d\n255\n", width, height); |
| // Source data is B, G, R, unused. |
| // Dest data is R, G, B. |
| char* result = new char[out_len]; |
| if (result) { |
| for (int h = 0; h < height; ++h) { |
| const char* src_line = buffer + (stride * h); |
| char* dest_line = result + (width * h * 3); |
| for (int w = 0; w < width; ++w) { |
| // R |
| dest_line[w * 3] = src_line[(w * 4) + 2]; |
| // G |
| dest_line[(w * 3) + 1] = src_line[(w * 4) + 1]; |
| // B |
| dest_line[(w * 3) + 2] = src_line[w * 4]; |
| } |
| } |
| fwrite(result, out_len, 1, fp); |
| delete [] result; |
| } |
| fclose(fp); |
| } |
| |
| static void WritePng(const char* pdf_name, int num, const void* buffer_void, |
| int stride, int width, int height) { |
| if (!CheckDimensions(stride, width, height)) |
| return; |
| |
| std::vector<unsigned char> png_encoding; |
| const unsigned char* buffer = static_cast<const unsigned char*>(buffer_void); |
| if (!image_diff_png::EncodeBGRAPNG( |
| buffer, width, height, stride, false, &png_encoding)) { |
| fprintf(stderr, "Failed to convert bitmap to PNG\n"); |
| return; |
| } |
| |
| char filename[256]; |
| int chars_formatted = snprintf( |
| filename, sizeof(filename), "%s.%d.png", pdf_name, num); |
| if (chars_formatted < 0 || |
| static_cast<size_t>(chars_formatted) >= sizeof(filename)) { |
| fprintf(stderr, "Filname %s is too long\n", filename); |
| return; |
| } |
| |
| FILE* fp = fopen(filename, "wb"); |
| if (!fp) { |
| fprintf(stderr, "Failed to open %s for output\n", filename); |
| return; |
| } |
| |
| size_t bytes_written = fwrite( |
| &png_encoding.front(), 1, png_encoding.size(), fp); |
| if (bytes_written != png_encoding.size()) |
| fprintf(stderr, "Failed to write to %s\n", filename); |
| |
| (void) fclose(fp); |
| } |
| |
| #ifdef _WIN32 |
| static void WriteBmp(const char* pdf_name, int num, const void* buffer, |
| int stride, int width, int height) { |
| if (stride < 0 || width < 0 || height < 0) |
| return; |
| if (height > 0 && width > INT_MAX / height) |
| return; |
| int out_len = stride * height; |
| if (out_len > INT_MAX / 3) |
| return; |
| |
| char filename[256]; |
| snprintf(filename, sizeof(filename), "%s.%d.bmp", pdf_name, num); |
| FILE* fp = fopen(filename, "wb"); |
| if (!fp) |
| return; |
| |
| BITMAPINFO bmi = {0}; |
| bmi.bmiHeader.biSize = sizeof(bmi) - sizeof(RGBQUAD); |
| bmi.bmiHeader.biWidth = width; |
| bmi.bmiHeader.biHeight = -height; // top-down image |
| bmi.bmiHeader.biPlanes = 1; |
| bmi.bmiHeader.biBitCount = 32; |
| bmi.bmiHeader.biCompression = BI_RGB; |
| bmi.bmiHeader.biSizeImage = 0; |
| |
| BITMAPFILEHEADER file_header = {0}; |
| file_header.bfType = 0x4d42; |
| file_header.bfSize = sizeof(file_header) + bmi.bmiHeader.biSize + out_len; |
| file_header.bfOffBits = file_header.bfSize - out_len; |
| |
| fwrite(&file_header, sizeof(file_header), 1, fp); |
| fwrite(&bmi, bmi.bmiHeader.biSize, 1, fp); |
| fwrite(buffer, out_len, 1, fp); |
| fclose(fp); |
| } |
| |
| void WriteEmf(FPDF_PAGE page, const char* pdf_name, int num) { |
| int width = static_cast<int>(FPDF_GetPageWidth(page)); |
| int height = static_cast<int>(FPDF_GetPageHeight(page)); |
| |
| char filename[256]; |
| snprintf(filename, sizeof(filename), "%s.%d.emf", pdf_name, num); |
| |
| HDC dc = CreateEnhMetaFileA(NULL, filename, NULL, NULL); |
| |
| HRGN rgn = CreateRectRgn(0, 0, width, height); |
| SelectClipRgn(dc, rgn); |
| DeleteObject(rgn); |
| |
| SelectObject(dc, GetStockObject(NULL_PEN)); |
| SelectObject(dc, GetStockObject(WHITE_BRUSH)); |
| // If a PS_NULL pen is used, the dimensions of the rectangle are 1 pixel less. |
| Rectangle(dc, 0, 0, width + 1, height + 1); |
| |
| FPDF_RenderPage(dc, page, 0, 0, width, height, 0, |
| FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH); |
| |
| DeleteEnhMetaFile(CloseEnhMetaFile(dc)); |
| } |
| #endif |
| |
| int ExampleAppAlert(IPDF_JSPLATFORM*, FPDF_WIDESTRING msg, FPDF_WIDESTRING, |
| int, int) { |
| // Deal with differences between UTF16LE and wchar_t on this platform. |
| size_t characters = 0; |
| while (msg[characters]) { |
| ++characters; |
| } |
| wchar_t* platform_string = |
| (wchar_t*)malloc((characters + 1) * sizeof(wchar_t)); |
| for (size_t i = 0; i < characters + 1; ++i) { |
| unsigned char* ptr = (unsigned char*)&msg[i]; |
| platform_string[i] = ptr[0] + 256 * ptr[1]; |
| } |
| printf("Alert: %ls\n", platform_string); |
| free(platform_string); |
| return 0; |
| } |
| |
| void ExampleDocGotoPage(IPDF_JSPLATFORM*, int pageNumber) { |
| printf("Goto Page: %d\n", pageNumber); |
| } |
| |
| void ExampleUnsupportedHandler(UNSUPPORT_INFO*, int type) { |
| std::string feature = "Unknown"; |
| switch (type) { |
| case FPDF_UNSP_DOC_XFAFORM: |
| feature = "XFA"; |
| break; |
| case FPDF_UNSP_DOC_PORTABLECOLLECTION: |
| feature = "Portfolios_Packages"; |
| break; |
| case FPDF_UNSP_DOC_ATTACHMENT: |
| case FPDF_UNSP_ANNOT_ATTACHMENT: |
| feature = "Attachment"; |
| break; |
| case FPDF_UNSP_DOC_SECURITY: |
| feature = "Rights_Management"; |
| break; |
| case FPDF_UNSP_DOC_SHAREDREVIEW: |
| feature = "Shared_Review"; |
| break; |
| case FPDF_UNSP_DOC_SHAREDFORM_ACROBAT: |
| case FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM: |
| case FPDF_UNSP_DOC_SHAREDFORM_EMAIL: |
| feature = "Shared_Form"; |
| break; |
| case FPDF_UNSP_ANNOT_3DANNOT: |
| feature = "3D"; |
| break; |
| case FPDF_UNSP_ANNOT_MOVIE: |
| feature = "Movie"; |
| break; |
| case FPDF_UNSP_ANNOT_SOUND: |
| feature = "Sound"; |
| break; |
| case FPDF_UNSP_ANNOT_SCREEN_MEDIA: |
| case FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA: |
| feature = "Screen"; |
| break; |
| case FPDF_UNSP_ANNOT_SIG: |
| feature = "Digital_Signature"; |
| break; |
| } |
| printf("Unsupported feature: %s.\n", feature.c_str()); |
| } |
| |
| bool ParseCommandLine(const std::vector<std::string>& args, |
| Options* options, std::list<std::string>* files) { |
| if (args.empty()) { |
| return false; |
| } |
| options->exe_path = args[0]; |
| size_t cur_idx = 1; |
| for (; cur_idx < args.size(); ++cur_idx) { |
| const std::string& cur_arg = args[cur_idx]; |
| if (cur_arg == "--ppm") { |
| if (options->output_format != OUTPUT_NONE) { |
| fprintf(stderr, "Duplicate or conflicting --ppm argument\n"); |
| return false; |
| } |
| options->output_format = OUTPUT_PPM; |
| } else if (cur_arg == "--png") { |
| if (options->output_format != OUTPUT_NONE) { |
| fprintf(stderr, "Duplicate or conflicting --png argument\n"); |
| return false; |
| } |
| options->output_format = OUTPUT_PNG; |
| } |
| #ifdef _WIN32 |
| else if (cur_arg == "--emf") { |
| if (options->output_format != OUTPUT_NONE) { |
| fprintf(stderr, "Duplicate or conflicting --emf argument\n"); |
| return false; |
| } |
| options->output_format = OUTPUT_EMF; |
| } |
| else if (cur_arg == "--bmp") { |
| if (options->output_format != OUTPUT_NONE) { |
| fprintf(stderr, "Duplicate or conflicting --bmp argument\n"); |
| return false; |
| } |
| options->output_format = OUTPUT_BMP; |
| } |
| #endif // _WIN32 |
| #ifdef V8_USE_EXTERNAL_STARTUP_DATA |
| else if (cur_arg.size() > 10 && cur_arg.compare(0, 10, "--bin-dir=") == 0) { |
| if (!options->bin_directory.empty()) { |
| fprintf(stderr, "Duplicate --bin-dir argument\n"); |
| return false; |
| } |
| options->bin_directory = cur_arg.substr(10); |
| } |
| #endif // V8_USE_EXTERNAL_STARTUP_DATA |
| else if (cur_arg.size() > 8 && cur_arg.compare(0, 8, "--scale=") == 0) { |
| if (!options->scale_factor_as_string.empty()) { |
| fprintf(stderr, "Duplicate --scale argument\n"); |
| return false; |
| } |
| options->scale_factor_as_string = cur_arg.substr(8); |
| } |
| else |
| break; |
| } |
| if (cur_idx >= args.size()) { |
| fprintf(stderr, "No input files.\n"); |
| return false; |
| } |
| for (size_t i = cur_idx; i < args.size(); i++) { |
| files->push_back(args[i]); |
| } |
| return true; |
| } |
| |
| class TestLoader { |
| public: |
| TestLoader(const char* pBuf, size_t len); |
| |
| const char* m_pBuf; |
| size_t m_Len; |
| }; |
| |
| TestLoader::TestLoader(const char* pBuf, size_t len) |
| : m_pBuf(pBuf), m_Len(len) { |
| } |
| |
| int Get_Block(void* param, unsigned long pos, unsigned char* pBuf, |
| unsigned long size) { |
| TestLoader* pLoader = (TestLoader*) param; |
| if (pos + size < pos || pos + size > pLoader->m_Len) return 0; |
| memcpy(pBuf, pLoader->m_pBuf + pos, size); |
| return 1; |
| } |
| |
| FPDF_BOOL Is_Data_Avail(FX_FILEAVAIL* pThis, size_t offset, size_t size) { |
| return true; |
| } |
| |
| void Add_Segment(FX_DOWNLOADHINTS* pThis, size_t offset, size_t size) { |
| } |
| |
| void RenderPdf(const std::string& name, const char* pBuf, size_t len, |
| const Options& options) { |
| fprintf(stderr, "Rendering PDF file %s.\n", name.c_str()); |
| |
| IPDF_JSPLATFORM platform_callbacks; |
| memset(&platform_callbacks, '\0', sizeof(platform_callbacks)); |
| platform_callbacks.version = 1; |
| platform_callbacks.app_alert = ExampleAppAlert; |
| platform_callbacks.Doc_gotoPage = ExampleDocGotoPage; |
| |
| FPDF_FORMFILLINFO form_callbacks; |
| memset(&form_callbacks, '\0', sizeof(form_callbacks)); |
| form_callbacks.version = 1; |
| form_callbacks.m_pJsPlatform = &platform_callbacks; |
| |
| TestLoader loader(pBuf, len); |
| |
| FPDF_FILEACCESS file_access; |
| memset(&file_access, '\0', sizeof(file_access)); |
| file_access.m_FileLen = static_cast<unsigned long>(len); |
| file_access.m_GetBlock = Get_Block; |
| file_access.m_Param = &loader; |
| |
| FX_FILEAVAIL file_avail; |
| memset(&file_avail, '\0', sizeof(file_avail)); |
| file_avail.version = 1; |
| file_avail.IsDataAvail = Is_Data_Avail; |
| |
| FX_DOWNLOADHINTS hints; |
| memset(&hints, '\0', sizeof(hints)); |
| hints.version = 1; |
| hints.AddSegment = Add_Segment; |
| |
| FPDF_DOCUMENT doc; |
| FPDF_AVAIL pdf_avail = FPDFAvail_Create(&file_avail, &file_access); |
| |
| (void) FPDFAvail_IsDocAvail(pdf_avail, &hints); |
| |
| if (!FPDFAvail_IsLinearized(pdf_avail)) { |
| fprintf(stderr, "Non-linearized path...\n"); |
| doc = FPDF_LoadCustomDocument(&file_access, NULL); |
| } else { |
| fprintf(stderr, "Linearized path...\n"); |
| doc = FPDFAvail_GetDocument(pdf_avail, NULL); |
| } |
| |
| (void) FPDF_GetDocPermissions(doc); |
| (void) FPDFAvail_IsFormAvail(pdf_avail, &hints); |
| |
| FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks); |
| FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD); |
| FPDF_SetFormFieldHighlightAlpha(form, 100); |
| |
| int first_page = FPDFAvail_GetFirstPageNum(doc); |
| (void) FPDFAvail_IsPageAvail(pdf_avail, first_page, &hints); |
| |
| int page_count = FPDF_GetPageCount(doc); |
| for (int i = 0; i < page_count; ++i) { |
| (void) FPDFAvail_IsPageAvail(pdf_avail, i, &hints); |
| } |
| |
| FORM_DoDocumentJSAction(form); |
| FORM_DoDocumentOpenAction(form); |
| |
| int rendered_pages = 0; |
| int bad_pages = 0; |
| for (int i = 0; i < page_count; ++i) { |
| FPDF_PAGE page = FPDF_LoadPage(doc, i); |
| if (!page) { |
| bad_pages ++; |
| continue; |
| } |
| FPDF_TEXTPAGE text_page = FPDFText_LoadPage(page); |
| FORM_OnAfterLoadPage(page, form); |
| FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_OPEN); |
| |
| double scale = 1.0; |
| if (!options.scale_factor_as_string.empty()) { |
| std::stringstream(options.scale_factor_as_string) >> scale; |
| } |
| int width = static_cast<int>(FPDF_GetPageWidth(page) * scale); |
| int height = static_cast<int>(FPDF_GetPageHeight(page) * scale); |
| |
| FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, 0); |
| if (!bitmap) { |
| fprintf(stderr, "Page was too large to be rendered.\n"); |
| bad_pages++; |
| continue; |
| } |
| |
| FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); |
| FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0); |
| rendered_pages ++; |
| |
| FPDF_FFLDraw(form, bitmap, page, 0, 0, width, height, 0, 0); |
| int stride = FPDFBitmap_GetStride(bitmap); |
| const char* buffer = |
| reinterpret_cast<const char*>(FPDFBitmap_GetBuffer(bitmap)); |
| |
| switch (options.output_format) { |
| #ifdef _WIN32 |
| case OUTPUT_BMP: |
| WriteBmp(name.c_str(), i, buffer, stride, width, height); |
| break; |
| |
| case OUTPUT_EMF: |
| WriteEmf(page, name.c_str(), i); |
| break; |
| #endif |
| case OUTPUT_PNG: |
| WritePng(name.c_str(), i, buffer, stride, width, height); |
| break; |
| |
| case OUTPUT_PPM: |
| WritePpm(name.c_str(), i, buffer, stride, width, height); |
| break; |
| |
| default: |
| break; |
| } |
| |
| FPDFBitmap_Destroy(bitmap); |
| |
| FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_CLOSE); |
| FORM_OnBeforeClosePage(page, form); |
| FPDFText_ClosePage(text_page); |
| FPDF_ClosePage(page); |
| } |
| |
| FORM_DoDocumentAAction(form, FPDFDOC_AACTION_WC); |
| FPDFDOC_ExitFormFillEnvironment(form); |
| FPDF_CloseDocument(doc); |
| FPDFAvail_Destroy(pdf_avail); |
| |
| fprintf(stderr, "Rendered %d pages.\n", rendered_pages); |
| fprintf(stderr, "Skipped %d bad pages.\n", bad_pages); |
| } |
| |
| static const char usage_string[] = |
| "Usage: pdfium_test [OPTION] [FILE]...\n" |
| " --bin-dir=<path> - override path to v8 external data\n" |
| " --scale=<number> - scale output size by number (e.g. 0.5)\n" |
| #ifdef _WIN32 |
| " --bmp - write page images <pdf-name>.<page-number>.bmp\n" |
| " --emf - write page meta files <pdf-name>.<page-number>.emf\n" |
| #endif |
| " --png - write page images <pdf-name>.<page-number>.png\n" |
| " --ppm - write page images <pdf-name>.<page-number>.ppm\n"; |
| |
| int main(int argc, const char* argv[]) { |
| std::vector<std::string> args(argv, argv + argc); |
| Options options; |
| std::list<std::string> files; |
| if (!ParseCommandLine(args, &options, &files)) { |
| fprintf(stderr, "%s", usage_string); |
| return 1; |
| } |
| |
| v8::V8::InitializeICU(); |
| v8::Platform* platform = v8::platform::CreateDefaultPlatform(); |
| v8::V8::InitializePlatform(platform); |
| v8::V8::Initialize(); |
| |
| #ifdef V8_USE_EXTERNAL_STARTUP_DATA |
| v8::StartupData natives; |
| v8::StartupData snapshot; |
| if (!GetExternalData(options, "natives_blob.bin", &natives) || |
| !GetExternalData(options, "snapshot_blob.bin", &snapshot)) { |
| return 1; |
| } |
| v8::V8::SetNativesDataBlob(&natives); |
| v8::V8::SetSnapshotDataBlob(&snapshot); |
| #endif // V8_USE_EXTERNAL_STARTUP_DATA |
| |
| FPDF_InitLibrary(); |
| |
| UNSUPPORT_INFO unsuppored_info; |
| memset(&unsuppored_info, '\0', sizeof(unsuppored_info)); |
| unsuppored_info.version = 1; |
| unsuppored_info.FSDK_UnSupport_Handler = ExampleUnsupportedHandler; |
| |
| FSDK_SetUnSpObjProcessHandler(&unsuppored_info); |
| |
| while (!files.empty()) { |
| std::string filename = files.front(); |
| files.pop_front(); |
| size_t file_length = 0; |
| char* file_contents = GetFileContents(filename.c_str(), &file_length); |
| if (!file_contents) |
| continue; |
| RenderPdf(filename, file_contents, file_length, options); |
| free(file_contents); |
| } |
| |
| FPDF_DestroyLibrary(); |
| v8::V8::ShutdownPlatform(); |
| delete platform; |
| |
| return 0; |
| } |