2007-08-02 19:28:55 -07:00
|
|
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
|
|
*
|
|
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
|
|
* the License. You may obtain a copy of the License at
|
|
|
|
* http://www.mozilla.org/MPL/
|
|
|
|
*
|
|
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
|
|
* for the specific language governing rights and limitations under the
|
|
|
|
* License.
|
|
|
|
*
|
|
|
|
* The Original Code is layout reftest.
|
|
|
|
*
|
|
|
|
* The Initial Developer of the Original Code is
|
|
|
|
* Mozilla Corporation
|
|
|
|
* Portions created by the Initial Developer are Copyright (C) 2007
|
|
|
|
* the Initial Developer. All Rights Reserved.
|
|
|
|
*
|
|
|
|
* Contributor(s):
|
|
|
|
* Vladimir Vukicevic <vladimir@pobox.com>
|
|
|
|
*
|
|
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
|
|
* the provisions above, a recipient may use your version of this file under
|
|
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
|
|
*
|
|
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
#include "nsIFactory.h"
|
|
|
|
#include "nsIGenericFactory.h"
|
|
|
|
#include "nsISupports.h"
|
|
|
|
|
|
|
|
#include "nsIDOMHTMLCanvasElement.h"
|
|
|
|
#include "nsIDOMCanvasRenderingContext2D.h"
|
|
|
|
#include "nsICanvasRenderingContextInternal.h"
|
|
|
|
|
|
|
|
#include "nsIReftestHelper.h"
|
|
|
|
|
|
|
|
#include "gfxContext.h"
|
|
|
|
#include "gfxImageSurface.h"
|
|
|
|
|
2007-08-06 13:13:19 -07:00
|
|
|
#include "nsStringGlue.h"
|
|
|
|
|
2007-08-02 19:28:55 -07:00
|
|
|
class nsReftestHelper :
|
|
|
|
public nsIReftestHelper
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_DECL_NSIREFTESTHELPER
|
|
|
|
};
|
|
|
|
|
|
|
|
NS_IMPL_ISUPPORTS1(nsReftestHelper, nsIReftestHelper)
|
|
|
|
|
|
|
|
static already_AddRefed<gfxImageSurface>
|
|
|
|
CanvasToImageSurface(nsIDOMHTMLCanvasElement *canvas)
|
|
|
|
{
|
|
|
|
PRUint32 w, h;
|
|
|
|
nsresult rv;
|
|
|
|
|
|
|
|
nsCOMPtr<nsICanvasElement> elt = do_QueryInterface(canvas);
|
|
|
|
rv = elt->GetSize(&w, &h);
|
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
nsCOMPtr<nsISupports> ctxg;
|
|
|
|
rv = canvas->GetContext(NS_LITERAL_STRING("2d"), getter_AddRefs(ctxg));
|
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
nsCOMPtr<nsICanvasRenderingContextInternal> ctx = do_QueryInterface(ctxg);
|
|
|
|
if (ctx == nsnull)
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
nsRefPtr<gfxImageSurface> img = new gfxImageSurface(gfxIntSize(w, h), gfxASurface::ImageFormatARGB32);
|
|
|
|
if (img == nsnull)
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
nsRefPtr<gfxContext> t = new gfxContext(img);
|
|
|
|
if (t == nsnull)
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
t->SetOperator(gfxContext::OPERATOR_CLEAR);
|
|
|
|
t->Paint();
|
|
|
|
|
|
|
|
rv = ctx->RenderToSurface(img->CairoSurface());
|
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return nsnull;
|
|
|
|
|
|
|
|
NS_ADDREF(img.get());
|
|
|
|
return img.get();
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsReftestHelper::CompareCanvas(nsIDOMHTMLCanvasElement *canvas1,
|
|
|
|
nsIDOMHTMLCanvasElement *canvas2,
|
|
|
|
PRUint32 *result)
|
|
|
|
{
|
|
|
|
if (canvas1 == nsnull ||
|
|
|
|
canvas2 == nsnull ||
|
|
|
|
result == nsnull)
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
|
|
|
nsRefPtr<gfxImageSurface> img1 = CanvasToImageSurface(canvas1);
|
|
|
|
nsRefPtr<gfxImageSurface> img2 = CanvasToImageSurface(canvas2);
|
|
|
|
|
|
|
|
if (img1 == nsnull || img2 == nsnull ||
|
|
|
|
img1->GetSize() != img2->GetSize() ||
|
|
|
|
img1->Stride() != img2->Stride())
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
|
|
|
int v;
|
|
|
|
gfxIntSize size = img1->GetSize();
|
|
|
|
PRUint32 stride = img1->Stride();
|
|
|
|
|
|
|
|
// we can optimize for the common all-pass case
|
|
|
|
if (stride == size.width * 4) {
|
|
|
|
v = memcmp(img1->Data(), img2->Data(), size.width * size.height * 4);
|
|
|
|
if (v == 0) {
|
|
|
|
*result = 0;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
PRUint32 different = 0;
|
|
|
|
for (int j = 0; j < size.height; j++) {
|
|
|
|
unsigned char *p1 = img1->Data() + j*stride;
|
|
|
|
unsigned char *p2 = img2->Data() + j*stride;
|
|
|
|
v = memcmp(p1, p2, stride);
|
|
|
|
|
|
|
|
if (v) {
|
|
|
|
for (int i = 0; i < size.width; i++) {
|
|
|
|
if (*(PRUint32*) p1 != *(PRUint32*) p2)
|
|
|
|
different++;
|
|
|
|
p1 += 4;
|
|
|
|
p2 += 4;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
*result = different;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NS_GENERIC_FACTORY_CONSTRUCTOR(nsReftestHelper)
|
|
|
|
|
|
|
|
static const nsModuleComponentInfo components[] =
|
|
|
|
{
|
|
|
|
{ "nsReftestHelper",
|
|
|
|
{ 0x0269F9AD, 0xA2BD, 0x4AEA,
|
|
|
|
{ 0xB9, 0x2F, 0xCB, 0xF2, 0x23, 0x80, 0x94, 0x54 } },
|
|
|
|
"@mozilla.org/reftest-helper;1",
|
|
|
|
nsReftestHelperConstructor },
|
|
|
|
};
|
|
|
|
|
|
|
|
NS_IMPL_NSGETMODULE(nsReftestModule, components)
|
|
|
|
|