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-/*
- * Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
- * (C) 2007 Graham Dennis (graham.dennis@gmail.com)
- * (C) 2007 Eric Seidel <eric@webkit.org>
- *
- * 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.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE 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 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 "PixelDumpSupport.h"
-#include "PixelDumpSupportCG.h"
-
-#include "DumpRenderTree.h"
-#include "LayoutTestController.h"
-#include <CoreGraphics/CGBitmapContext.h>
-#include <wtf/Assertions.h>
-#include <wtf/RefPtr.h>
-
-#import <WebKit/WebCoreStatistics.h>
-#import <WebKit/WebDocumentPrivate.h>
-#import <WebKit/WebHTMLViewPrivate.h>
-#import <WebKit/WebKit.h>
-#import <WebKit/WebViewPrivate.h>
-
-#if defined(BUILDING_ON_TIGER)
-#include <OpenGL/OpenGL.h>
-#include <OpenGL/CGLMacro.h>
-#endif
-
-// To ensure pixel tests consistency, we need to always render in the same colorspace.
-// Unfortunately, because of AppKit / WebKit constraints, we can't render directly in the colorspace of our choice.
-// This implies we have to temporarily change the profile of the main display to the colorspace we want to render into.
-// We also need to make sure the CGBitmapContext we return is in that same colorspace.
-
-#define PROFILE_PATH "/System/Library/ColorSync/Profiles/Generic RGB Profile.icc" // FIXME: This cannot be more than CS_MAX_PATH (256 characters)
-
-static CMProfileLocation sInitialProfileLocation; // The locType field is initialized to 0 which is the same as cmNoProfileBase
-
-void restoreMainDisplayColorProfile(int ignored)
-{
- // This is used as a signal handler, and thus the calls into ColorSync are unsafe
- // But we might as well try to restore the user's color profile, we're going down anyway...
- if (sInitialProfileLocation.locType != cmNoProfileBase) {
- const CMDeviceScope scope = { kCFPreferencesCurrentUser, kCFPreferencesCurrentHost };
- int error = CMSetDeviceProfile(cmDisplayDeviceClass, (CMDeviceID)kCGDirectMainDisplay, &scope, cmDefaultProfileID, &sInitialProfileLocation);
- if (error)
- fprintf(stderr, "Failed to restore initial color profile for main display! Open System Preferences > Displays > Color and manually re-select the profile. (Error: %i)", error);
- sInitialProfileLocation.locType = cmNoProfileBase;
- }
-}
-
-void setupMainDisplayColorProfile()
-{
- const CMDeviceScope scope = { kCFPreferencesCurrentUser, kCFPreferencesCurrentHost };
- int error;
-
- CMProfileRef profile = 0;
- error = CMGetProfileByAVID((CMDisplayIDType)kCGDirectMainDisplay, &profile);
- if (!error) {
- UInt32 size = sizeof(CMProfileLocation);
- error = NCMGetProfileLocation(profile, &sInitialProfileLocation, &size);
- CMCloseProfile(profile);
- }
- if (error) {
- fprintf(stderr, "Failed to retrieve current color profile for main display, thus it won't be changed. Many pixel tests may fail as a result. (Error: %i)", error);
- sInitialProfileLocation.locType = cmNoProfileBase;
- return;
- }
-
- CMProfileLocation location;
- location.locType = cmPathBasedProfile;
- strcpy(location.u.pathLoc.path, PROFILE_PATH);
- error = CMSetDeviceProfile(cmDisplayDeviceClass, (CMDeviceID)kCGDirectMainDisplay, &scope, cmDefaultProfileID, &location);
- if (error) {
- fprintf(stderr, "Failed to set color profile for main display! Many pixel tests may fail as a result. (Error: %i)", error);
- sInitialProfileLocation.locType = cmNoProfileBase;
- return;
- }
-
- // Other signals are handled in installSignalHandlers() which also calls restoreMainDisplayColorProfile()
- signal(SIGINT, restoreMainDisplayColorProfile);
- signal(SIGHUP, restoreMainDisplayColorProfile);
- signal(SIGTERM, restoreMainDisplayColorProfile);
-}
-
-static PassRefPtr<BitmapContext> createBitmapContext(size_t pixelsWide, size_t pixelsHigh, size_t& rowBytes, void*& buffer)
-{
- rowBytes = (4 * pixelsWide + 63) & ~63; // Use a multiple of 64 bytes to improve CG performance
-
- buffer = calloc(pixelsHigh, rowBytes);
- if (!buffer)
- return 0;
-
- static CGColorSpaceRef colorSpace = 0;
- if (!colorSpace) {
- CMProfileLocation location;
- location.locType = cmPathBasedProfile;
- strcpy(location.u.pathLoc.path, PROFILE_PATH);
- CMProfileRef profile;
- if (CMOpenProfile(&profile, &location) == noErr) {
- colorSpace = CGColorSpaceCreateWithPlatformColorSpace(profile);
- CMCloseProfile(profile);
- }
- }
-
- CGContextRef context = CGBitmapContextCreate(buffer, pixelsWide, pixelsHigh, 8, rowBytes, colorSpace, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host); // Use ARGB8 on PPC or BGRA8 on X86 to improve CG performance
- if (!context) {
- free(buffer);
- return 0;
- }
-
- return BitmapContext::createByAdoptingBitmapAndContext(buffer, context);
-}
-
-PassRefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)
-{
- WebView* view = [mainFrame webView];
-
- // If the WebHTMLView uses accelerated compositing, we need for force the on-screen capture path
- // and also force Core Animation to start its animations with -display since the DRT window has autodisplay disabled.
- if ([view _isUsingAcceleratedCompositing])
- onscreen = YES;
-
- NSSize webViewSize = [view frame].size;
- size_t pixelsWide = static_cast<size_t>(webViewSize.width);
- size_t pixelsHigh = static_cast<size_t>(webViewSize.height);
- size_t rowBytes = 0;
- void* buffer = 0;
- RefPtr<BitmapContext> bitmapContext = createBitmapContext(pixelsWide, pixelsHigh, rowBytes, buffer);
- if (!bitmapContext)
- return 0;
- CGContextRef context = bitmapContext->cgContext();
-
- NSGraphicsContext *nsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
- ASSERT(nsContext);
-
- if (incrementalRepaint) {
- if (sweepHorizontally) {
- for (NSRect column = NSMakeRect(0, 0, 1, webViewSize.height); column.origin.x < webViewSize.width; column.origin.x++)
- [view displayRectIgnoringOpacity:column inContext:nsContext];
- } else {
- for (NSRect line = NSMakeRect(0, 0, webViewSize.width, 1); line.origin.y < webViewSize.height; line.origin.y++)
- [view displayRectIgnoringOpacity:line inContext:nsContext];
- }
- } else {
-
- if (onscreen) {
-#if !defined(BUILDING_ON_TIGER)
- // displayIfNeeded does not update the CA layers if the layer-hosting view was not marked as needing display, so
- // we're at the mercy of CA's display-link callback to update layers in time. So we need to force a display of the view
- // to get AppKit to update the CA layers synchronously.
- // FIXME: this will break repaint testing if we have compositing in repaint tests
- // (displayWebView() painted gray over the webview, but we'll be making everything repaint again).
- [view display];
-
- // Ask the window server to provide us a composited version of the *real* window content including surfaces (i.e. OpenGL content)
- // Note that the returned image might differ very slightly from the window backing because of dithering artifacts in the window server compositor
- CGImageRef image = CGWindowListCreateImage(CGRectNull, kCGWindowListOptionIncludingWindow, [[view window] windowNumber], kCGWindowImageBoundsIgnoreFraming | kCGWindowImageShouldBeOpaque);
- CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image), CGImageGetHeight(image)), image);
- CGImageRelease(image);
-#else
- // On 10.4 and earlier, we have to move the window temporarily "onscreen" and read directly from the display framebuffer using OpenGL
- // In this code path, we need to ensure the window is above any other window or captured result will be corrupted
-
- NSWindow *window = [view window];
- int oldLevel = [window level];
- NSRect oldFrame = [window frame];
-
- NSRect newFrame = [[[NSScreen screens] objectAtIndex:0] frame];
- newFrame = NSMakeRect(newFrame.origin.x + (newFrame.size.width - oldFrame.size.width) / 2, newFrame.origin.y + (newFrame.size.height - oldFrame.size.height) / 2, oldFrame.size.width, oldFrame.size.height);
- [window setLevel:NSScreenSaverWindowLevel];
- [window setFrame:newFrame display:NO animate:NO];
-
- CGRect rect = CGRectMake(newFrame.origin.x, newFrame.origin.y, webViewSize.width, webViewSize.height);
- CGDirectDisplayID displayID;
- CGDisplayCount count;
- if (CGGetDisplaysWithRect(rect, 1, &displayID, &count) == kCGErrorSuccess) {
- CGRect bounds = CGDisplayBounds(displayID);
- rect.origin.x -= bounds.origin.x;
- rect.origin.y -= bounds.origin.y;
-
- CGLPixelFormatAttribute attributes[] = {kCGLPFAAccelerated, kCGLPFANoRecovery, kCGLPFAFullScreen, kCGLPFADisplayMask, (CGLPixelFormatAttribute)CGDisplayIDToOpenGLDisplayMask(displayID), (CGLPixelFormatAttribute)0};
- CGLPixelFormatObj pixelFormat;
- GLint num;
- if (CGLChoosePixelFormat(attributes, &pixelFormat, &num) == kCGLNoError) {
- CGLContextObj cgl_ctx;
- if (CGLCreateContext(pixelFormat, 0, &cgl_ctx) == kCGLNoError) {
- if (CGLSetFullScreen(cgl_ctx) == kCGLNoError) {
- void *flipBuffer = calloc(pixelsHigh, rowBytes);
- if (flipBuffer) {
- glPixelStorei(GL_PACK_ROW_LENGTH, rowBytes / 4);
- glPixelStorei(GL_PACK_ALIGNMENT, 4);
-#if __BIG_ENDIAN__
- glReadPixels(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, flipBuffer);
-#else
- glReadPixels(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, flipBuffer);
-#endif
- if (!glGetError()) {
- for(size_t i = 0; i < pixelsHigh; ++i)
- bcopy((char*)flipBuffer + rowBytes * i, (char*)buffer + rowBytes * (pixelsHigh - i - 1), pixelsWide * 4);
- }
-
- free(flipBuffer);
- }
- }
- CGLDestroyContext(cgl_ctx);
- }
- CGLDestroyPixelFormat(pixelFormat);
- }
- }
-
- [window setFrame:oldFrame display:NO animate:NO];
- [window setLevel:oldLevel];
-#endif
- } else {
- // Make sure the view has been painted.
- [view displayIfNeeded];
-
- // Grab directly the contents of the window backing buffer (this ignores any surfaces on the window)
- // FIXME: This path is suboptimal: data is read from window backing store, converted to RGB8 then drawn again into an RGBA8 bitmap
- [view lockFocus];
- NSBitmapImageRep *imageRep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:[view frame]] autorelease];
- [view unlockFocus];
-
- RetainPtr<NSGraphicsContext> savedContext = [NSGraphicsContext currentContext];
- [NSGraphicsContext setCurrentContext:nsContext];
- [imageRep draw];
- [NSGraphicsContext setCurrentContext:savedContext.get()];
- }
- }
-
- if (drawSelectionRect) {
- NSView *documentView = [[mainFrame frameView] documentView];
- ASSERT([documentView conformsToProtocol:@protocol(WebDocumentSelection)]);
- NSRect rect = [documentView convertRect:[(id <WebDocumentSelection>)documentView selectionRect] fromView:nil];
- CGContextSaveGState(context);
- CGContextSetLineWidth(context, 1.0);
- CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0);
- CGContextStrokeRect(context, CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height));
- CGContextRestoreGState(context);
- }
-
- return bitmapContext.release();
-}
-
-PassRefPtr<BitmapContext> createPagedBitmapContext()
-{
- int pageWidthInPixels = LayoutTestController::maxViewWidth;
- int pageHeightInPixels = LayoutTestController::maxViewHeight;
- int numberOfPages = [mainFrame numberOfPages:pageWidthInPixels:pageHeightInPixels];
- size_t rowBytes = 0;
- void* buffer = 0;
-
- RefPtr<BitmapContext> bitmapContext = createBitmapContext(pageWidthInPixels, numberOfPages * (pageHeightInPixels + 1) - 1, rowBytes, buffer);
- [mainFrame printToCGContext:bitmapContext->cgContext():pageWidthInPixels:pageHeightInPixels];
- return bitmapContext.release();
-}