diff options
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/pdfium_test.cc | 134 |
1 files changed, 115 insertions, 19 deletions
diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc index f8e567349b..9a6513dc10 100644 --- a/samples/pdfium_test.cc +++ b/samples/pdfium_test.cc @@ -22,8 +22,19 @@ #define snprintf _snprintf #endif -static void WritePpm(const char* pdf_name, int num, - const char* buffer, int stride, int width, int height) { +enum OutputFormat { + OUTPUT_NONE, + OUTPUT_PPM, +#ifdef _WIN32 + OUTPUT_BMP, + OUTPUT_EMF, +#endif +}; + +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 (stride < 0 || width < 0 || height < 0) return; if (height > 0 && width > INT_MAX / height) @@ -61,6 +72,68 @@ static void WritePpm(const char* pdf_name, int num, 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 Form_Alert(IPDF_JSPLATFORM*, FPDF_WIDESTRING, FPDF_WIDESTRING, int, int) { printf("Form_Alert called.\n"); return 0; @@ -110,15 +183,21 @@ void Unsupported_Handler(UNSUPPORT_INFO*, int type) { printf("Unsupported feature: %s.\n", feature.c_str()); } -bool ParseCommandLine(int argc, const char* argv[], bool* write_images, +bool ParseCommandLine(int argc, const char* argv[], OutputFormat* output_format, std::list<const char*>* files) { - *write_images = false; + *output_format = OUTPUT_NONE; files->clear(); int cur_arg = 1; - if (cur_arg < argc && - strcmp(argv[cur_arg], "--write_images") == 0) { - *write_images = true; + if (cur_arg < argc) { + if (strcmp(argv[cur_arg], "--ppm") == 0) + *output_format = OUTPUT_PPM; +#ifdef _WIN32 + if (strcmp(argv[cur_arg], "--emf") == 0) + *output_format = OUTPUT_EMF; + if (strcmp(argv[cur_arg], "--bmp") == 0) + *output_format = OUTPUT_BMP; +#endif cur_arg++; } @@ -159,7 +238,7 @@ void Add_Segment(FX_DOWNLOADHINTS* pThis, size_t offset, size_t size) { } void RenderPdf(const char* name, const char* pBuf, size_t len, - bool write_images) { + OutputFormat format) { printf("Rendering PDF file %s.\n", name); IPDF_JSPLATFORM platform_callbacks; @@ -234,11 +313,25 @@ void RenderPdf(const char* name, const char* pBuf, size_t len, FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0); FPDF_FFLDraw(form, bitmap, page, 0, 0, width, height, 0, 0); - if (write_images) { - const char* buffer = reinterpret_cast<const char*>( - FPDFBitmap_GetBuffer(bitmap)); - int stride = FPDFBitmap_GetStride(bitmap); - WritePpm(name, i, buffer, stride, width, height); + int stride = FPDFBitmap_GetStride(bitmap); + const char* buffer = + reinterpret_cast<const char*>(FPDFBitmap_GetBuffer(bitmap)); + + switch (format) { +#ifdef _WIN32 + case OUTPUT_BMP: + WriteBmp(name, i, buffer, stride, width, height); + break; + + case OUTPUT_EMF: + WriteEmf(page, name, i); + break; +#endif + case OUTPUT_PPM: + WritePpm(name, i, buffer, stride, width, height); + break; + default: + break; } FPDFBitmap_Destroy(bitmap); @@ -259,11 +352,15 @@ void RenderPdf(const char* name, const char* pBuf, size_t len, int main(int argc, const char* argv[]) { v8::V8::InitializeICU(); - bool write_images = false; + OutputFormat format = OUTPUT_NONE; std::list<const char*> files; - if (!ParseCommandLine(argc, argv, &write_images, &files)) { - printf("Usage is: test [--write_images] /path/to/pdf\n"); - printf("--write_images - to write page images <pdf-name>.<page-number>.ppm\n"); + if (!ParseCommandLine(argc, argv, &format, &files)) { + printf("Usage: pdfium_test [OPTIONS] [FILE]\n"); + printf("--ppm write page images <pdf-name>.<page-number>.ppm\n"); +#ifdef _WIN32 + printf("--bmp write page images <pdf-name>.<page-number>.bmp\n"); + printf("--emf write page meta files <pdf-name>.<page-number>.emf\n"); +#endif return 1; } @@ -293,7 +390,7 @@ int main(int argc, const char* argv[]) { if (ret != len) { fprintf(stderr, "Failed to read: %s\n", filename); } else { - RenderPdf(filename, pBuf, len, write_images); + RenderPdf(filename, pBuf, len, format); } free(pBuf); } @@ -302,4 +399,3 @@ int main(int argc, const char* argv[]) { return 0; } - |