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/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
* (C) 2011 Brent Fulgham <bfulgham@webkit.org>. All rights reserved.
* (C) 2010, 2011 Igalia S.L
* (C) 2012 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "TestInvocation.h"
#include "PixelDumpSupport.h"
#include <WebKit2/WKImageCairo.h>
#include <cairo/cairo.h>
#include <cstdio>
#include <wtf/Assertions.h>
#include <wtf/MD5.h>
#include <wtf/StringExtras.h>
namespace WTR {
void computeMD5HashStringForCairoSurface(cairo_surface_t* surface, char hashString[33])
{
ASSERT(cairo_image_surface_get_format(surface) == CAIRO_FORMAT_ARGB32); // ImageDiff assumes 32 bit RGBA, we must as well.
size_t pixelsHigh = cairo_image_surface_get_height(surface);
size_t pixelsWide = cairo_image_surface_get_width(surface);
size_t bytesPerRow = cairo_image_surface_get_stride(surface);
MD5 md5Context;
unsigned char* bitmapData = static_cast<unsigned char*>(cairo_image_surface_get_data(surface));
for (size_t row = 0; row < pixelsHigh; ++row) {
md5Context.addBytes(bitmapData, 4 * pixelsWide);
bitmapData += bytesPerRow;
}
Vector<uint8_t, 16> hash;
md5Context.checksum(hash);
snprintf(hashString, 33, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
hash[0], hash[1], hash[2], hash[3], hash[4], hash[5], hash[6], hash[7],
hash[8], hash[9], hash[10], hash[11], hash[12], hash[13], hash[14], hash[15]);
}
static cairo_status_t writeFunction(void* closure, const unsigned char* data, unsigned int length)
{
Vector<unsigned char>* in = reinterpret_cast<Vector<unsigned char>*>(closure);
in->append(data, length);
return CAIRO_STATUS_SUCCESS;
}
static void dumpBitmap(cairo_surface_t* surface, const char* checksum)
{
Vector<unsigned char> pixelData;
cairo_surface_write_to_png_stream(surface, writeFunction, &pixelData);
const size_t dataLength = pixelData.size();
const unsigned char* data = pixelData.data();
printPNG(data, dataLength, checksum);
}
static void paintRepaintRectOverlay(cairo_surface_t* surface, WKArrayRef repaintRects)
{
cairo_t* context = cairo_create(surface);
cairo_push_group(context);
// Paint the gray mask over the original image.
cairo_set_source_rgba(context, 0, 0, 0, 0.66);
cairo_paint(context);
// Paint transparent rectangles over the mask to show the repainted regions.
cairo_set_source_rgba(context, 0, 0, 0, 0);
cairo_set_operator(context, CAIRO_OPERATOR_SOURCE);
size_t count = WKArrayGetSize(repaintRects);
for (size_t i = 0; i < count; ++i) {
WKRect rect = WKRectGetValue(static_cast<WKRectRef>(WKArrayGetItemAtIndex(repaintRects, i)));
cairo_rectangle(context, rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
cairo_fill(context);
}
cairo_pop_group_to_source(context);
cairo_paint(context);
cairo_destroy(context);
}
void TestInvocation::dumpPixelsAndCompareWithExpected(WKImageRef wkImage, WKArrayRef repaintRects)
{
cairo_surface_t* surface = WKImageCreateCairoSurface(wkImage);
if (repaintRects)
paintRepaintRectOverlay(surface, repaintRects);
char actualHash[33];
computeMD5HashStringForCairoSurface(surface, actualHash);
if (!compareActualHashToExpectedAndDumpResults(actualHash))
dumpBitmap(surface, actualHash);
cairo_surface_destroy(surface);
}
} // namespace WTR
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