Add bitmaps and skp output to Skia port

samples/pdfium_test.cc

 // 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>
@@ skipping 13 matching lines @@
 
 #ifdef PDF_ENABLE_V8
 #include "v8/include/libplatform/libplatform.h"
 #include "v8/include/v8.h"
 #endif  // PDF_ENABLE_V8
 
 #ifdef _WIN32
 #define snprintf _snprintf
 #endif
 
+#define _SKP_SUPPORT_
+
+#ifdef _SKP_SUPPORT_
+#include "third_party/skia/include/core/SkPictureRecorder.h"
+#include "third_party/skia/include/core/SkStream.h"
+#endif
+
 enum OutputFormat {
   OUTPUT_NONE,
   OUTPUT_PPM,
   OUTPUT_PNG,
 #ifdef _WIN32
   OUTPUT_BMP,
   OUTPUT_EMF,
 #endif
+#ifdef _SKP_SUPPORT_
+  OUTPUT_SKP,
+#endif
 };
 
 struct Options {
   Options() : show_config(false), output_format(OUTPUT_NONE) {}
 
   bool show_config;
   OutputFormat output_format;
   std::string scale_factor_as_string;
   std::string exe_path;
   std::string bin_directory;
@@ skipping 136 matching lines @@
   // 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
 
+#ifdef _SKP_SUPPORT_
+void WriteSkp(const char* pdf_name, int num, const void* recorder) {
+  char filename[256];
+  int chars_formatted = snprintf(
+      filename, sizeof(filename), "%s.%d.skp", pdf_name, num);
+
+  if (chars_formatted < 0 ||
+      static_cast<size_t>(chars_formatted) >= sizeof(filename)) {
+    fprintf(stderr, "Filname %s is too long\n", filename);

[dsinclair, 2016/03/10 14:38:54]

nit: filename

[caryclark, 2016/03/10 20:44:55]

Done.

+    return;
+  }
+
+  SkPictureRecorder* r = (SkPictureRecorder*) recorder;
+  SkPicture* picture = r->endRecordingAsPicture();
+  SkFILEWStream wStream(filename);
+  picture->serialize(&wStream);
+}
+#endif
+
 // These example JS platform callback handlers are entirely optional,
 // and exist here to show the flow of information from a document back
 // to the embedder.
 int ExampleAppAlert(IPDF_JSPLATFORM*,
                     FPDF_WIDESTRING msg,
                     FPDF_WIDESTRING title,
                     int nType,
                     int nIcon) {
   printf("%ls", GetPlatformWString(title).c_str());
   if (nIcon || nType)
@@ skipping 104 matching lines @@
         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 _SKP_SUPPORT_
+    } else if (cur_arg == "--skp") {
+      if (options->output_format != OUTPUT_NONE) {
+        fprintf(stderr, "Duplicate or conflicting --skp argument\n");
+        return false;
+      }
+      options->output_format = OUTPUT_SKP;
+#endif
     } else if (cur_arg.size() > 11 &&
                cur_arg.compare(0, 11, "--font-dir=") == 0) {
       if (!options->font_directory.empty()) {
         fprintf(stderr, "Duplicate --font-dir argument\n");
         return false;
       }
       options->font_directory = cur_arg.substr(11);
 #ifdef _WIN32
     } else if (cur_arg == "--emf") {
       if (options->output_format != OUTPUT_NONE) {
@@ skipping 69 matching lines @@
   int alpha = FPDFPage_HasTransparency(page) ? 1 : 0;
   FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, alpha);
   if (!bitmap) {
     fprintf(stderr, "Page was too large to be rendered.\n");
     return false;
   }
   FPDF_DWORD fill_color = alpha ? 0x00000000 : 0xFFFFFFFF;
   FPDFBitmap_FillRect(bitmap, 0, 0, width, height, fill_color);
   FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0);
 
-  FPDF_FFLDraw(form, bitmap, page, 0, 0, width, height, 0, 0);
+  FPDF_FFLDraw(form, bitmap, nullptr, 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(), page_index, buffer, stride, width, height);
       break;
 
     case OUTPUT_EMF:
       WriteEmf(page, name.c_str(), page_index);
       break;
 #endif
     case OUTPUT_PNG:
       WritePng(name.c_str(), page_index, buffer, stride, width, height);
       break;
 
     case OUTPUT_PPM:
       WritePpm(name.c_str(), page_index, buffer, stride, width, height);
       break;
 
+#ifdef _SKP_SUPPORT_
+    case OUTPUT_SKP: {
+        void* recorder = FPDF_RenderPageSkp(page, width, height);

[dsinclair, 2016/03/10 14:38:54]

unique_ptr

[caryclark, 2016/03/10 20:44:55]

Done.

+        FPDF_FFLDraw(form, nullptr, recorder, page, 0, 0, width, height, 0, 0);
+        WriteSkp(name.c_str(), page_index, recorder);
+        delete recorder;
+      } break;
+#endif
     default:
       break;
   }
 
   FPDFBitmap_Destroy(bitmap);
   FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_CLOSE);
   FORM_OnBeforeClosePage(page, form);
   FPDFText_ClosePage(text_page);
   FPDF_ClosePage(page);
   return true;
@@ skipping 255 matching lines @@
   }
 
   FPDF_DestroyLibrary();
 #ifdef PDF_ENABLE_V8
   v8::V8::ShutdownPlatform();
   delete platform;
 #endif  // PDF_ENABLE_V8
 
   return 0;
 }