#include <utility>
#include <vector>
-#include "../fpdfsdk/include/fpdf_dataavail.h"
-#include "../fpdfsdk/include/fpdf_ext.h"
-#include "../fpdfsdk/include/fpdfformfill.h"
-#include "../fpdfsdk/include/fpdftext.h"
-#include "../fpdfsdk/include/fpdfview.h"
-#include "../core/include/fxcrt/fx_system.h"
-#include "v8/include/v8.h"
+#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
enum OutputFormat {
OUTPUT_NONE,
OUTPUT_PPM,
+ OUTPUT_PNG,
#ifdef _WIN32
OUTPUT_BMP,
OUTPUT_EMF,
}
#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 (stride < 0 || width < 0 || height < 0)
- return;
- if (height > 0 && width > INT_MAX / height)
+ if (!CheckDimensions(stride, width, height))
return;
+
int out_len = width * height;
if (out_len > INT_MAX / 3)
return;
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) {
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") {
return 1;
}
-bool Is_Data_Avail(FX_FILEAVAIL* pThis, size_t offset, size_t size) {
+FPDF_BOOL Is_Data_Avail(FX_FILEAVAIL* pThis, size_t offset, size_t size) {
return true;
}
FORM_DoDocumentJSAction(form);
FORM_DoDocumentOpenAction(form);
- size_t rendered_pages = 0;
- size_t bad_pages = 0;
+ 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) {
FORM_OnAfterLoadPage(page, form);
FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_OPEN);
- int width = static_cast<int>(FPDF_GetPageWidth(page));
- int height = static_cast<int>(FPDF_GetPageHeight(page));
+ double scale = 1.0;
if (!options.scale_factor_as_string.empty()) {
- double scale = 1.0;
std::stringstream(options.scale_factor_as_string) >> scale;
- width *= scale;
- height *= 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 ++;
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;
}
}
FORM_DoDocumentAAction(form, FPDFDOC_AACTION_WC);
- FPDFDOC_ExitFormFillEnvironment(form);
FPDF_CloseDocument(doc);
+ FPDFDOC_ExitFormFillEnvironment(form);
FPDFAvail_Destroy(pdf_avail);
- fprintf(stderr, "Rendered %" PRIuS " pages.\n", rendered_pages);
- fprintf(stderr, "Skipped %" PRIuS " bad pages.\n", bad_pages);
+ fprintf(stderr, "Rendered %d pages.\n", rendered_pages);
+ fprintf(stderr, "Skipped %d bad pages.\n", bad_pages);
}
static const char usage_string[] =
" --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[]) {
projects / pdfium.git / blobdiff