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This lets developers see what bots are rendering when embedder tests have PNG comparison failures, without the need to access to the bots' file systems. Inspired by Chromium cc/ test utilities. Add an EncodePng(FPDF_BITMAP) variant to support this. Change-Id: Ic68eaeea6855aa099e82d5a55e5dd33a8f06e22d Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/141274 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Andy Phan <andyphan@chromium.org>
32 lines
948 B
C++
32 lines
948 B
C++
// Copyright 2018 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "testing/utils/bitmap_saver.h"
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#include <fstream>
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#include <vector>
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#include "core/fxcrt/check.h"
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#include "testing/utils/png_encode.h"
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// static
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void BitmapSaver::WriteBitmapToPng(FPDF_BITMAP bitmap,
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const std::string& filename) {
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std::vector<uint8_t> png = EncodePng(bitmap);
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DCHECK(!png.empty());
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DCHECK(filename.size() < 256u);
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std::ofstream png_file;
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png_file.open(filename, std::ios_base::out | std::ios_base::binary);
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png_file.write(reinterpret_cast<char*>(&png.front()), png.size());
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DCHECK(png_file.good());
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png_file.close();
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}
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// static
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void BitmapSaver::WriteBitmapToPng(CFX_DIBitmap* bitmap,
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const std::string& filename) {
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WriteBitmapToPng(reinterpret_cast<FPDF_BITMAP>(bitmap), filename);
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}
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