+++ /dev/null
-/*
- * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
- * 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.
- */
-
-#import "config.h"
-#import "Image.h"
-
-#import "FloatRect.h"
-#import "FoundationExtras.h"
-#import "GraphicsContext.h"
-#import "PDFDocumentImage.h"
-#import "PlatformString.h"
-#import "WebCoreFrameBridge.h"
-#import "WebCoreSystemInterface.h"
-
-namespace WebCore {
-
-void FrameData::clear()
-{
- if (m_frame) {
- CFRelease(m_frame);
- m_frame = 0;
- m_duration = 0.;
- m_hasAlpha = true;
- }
-}
-
-// ================================================
-// Image Class
-// ================================================
-
-void Image::initNativeData()
-{
- m_nsImage = 0;
- m_tiffRep = 0;
- m_isPDF = false;
- m_PDFDoc = 0;
-}
-
-void Image::destroyNativeData()
-{
- delete m_PDFDoc;
-}
-
-void Image::invalidateNativeData()
-{
- if (m_frames.size() != 1)
- return;
-
- if (m_nsImage) {
- CFRelease(m_nsImage);
- m_nsImage = 0;
- }
-
- if (m_tiffRep) {
- CFRelease(m_tiffRep);
- m_tiffRep = 0;
- }
-}
-
-Image* Image::loadResource(const char *name)
-{
- NSBundle *bundle = [NSBundle bundleForClass:[WebCoreFrameBridge class]];
- NSString *imagePath = [bundle pathForResource:[NSString stringWithUTF8String:name] ofType:@"tiff"];
- NSData *namedImageData = [NSData dataWithContentsOfFile:imagePath];
- if (namedImageData) {
- Image* image = new Image;
- image->setNativeData((CFDataRef)namedImageData, true);
- return image;
- }
- return 0;
-}
-
-bool Image::supportsType(const String& type)
-{
- // FIXME: Would be better if this was looking in a set rather than an NSArray.
- // FIXME: Would be better not to convert to an NSString just to check if a type is supported.
- return [[WebCoreFrameBridge supportedImageResourceMIMETypes] containsObject:type];
-}
-
-// Drawing Routines
-
-void Image::checkForSolidColor()
-{
- if (frameCount() > 1)
- m_isSolidColor = false;
- else {
- CGImageRef image = frameAtIndex(0);
-
- // Currently we only check for solid color in the important special case of a 1x1 image.
- if (image && CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) {
- CGFloat pixel[4]; // RGBA
- CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
- CGContextRef bmap = CGBitmapContextCreate(&pixel, 1, 1, 8*sizeof(float), sizeof(pixel), space,
- kCGImageAlphaPremultipliedLast | kCGBitmapFloatComponents | kCGBitmapByteOrder32Host);
- if (bmap) {
- GraphicsContext(bmap).setCompositeOperation(CompositeCopy);
- CGRect dst = { {0, 0}, {1, 1} };
- CGContextDrawImage(bmap, dst, image);
- if (pixel[3] == 0)
- m_solidColor = Color(0, 0, 0, 0);
- else
- m_solidColor = Color(int(pixel[0] / pixel[3] * 255), int(pixel[1] / pixel[3] * 255), int(pixel[2] / pixel[3] * 255), int(pixel[3] * 255));
- m_isSolidColor = true;
- CFRelease(bmap);
- }
- CFRelease(space);
- }
- }
-}
-
-CFDataRef Image::getTIFFRepresentation()
-{
- if (m_tiffRep)
- return m_tiffRep;
-
- unsigned numFrames = frameCount();
- CFMutableDataRef data = CFDataCreateMutable(0, 0);
- // FIXME: Use type kCGImageTypeIdentifierTIFF constant once is becomes available in the API
- CGImageDestinationRef destination = CGImageDestinationCreateWithData(data, CFSTR("public.tiff"), numFrames, 0);
- if (!destination)
- return 0;
-
- for (unsigned i = 0; i < numFrames; ++i ) {
- CGImageRef cgImage = frameAtIndex(i);
- if (!cgImage) {
- CFRelease(destination);
- return 0;
- }
- CGImageDestinationAddImage(destination, cgImage, 0);
- }
- CGImageDestinationFinalize(destination);
- CFRelease(destination);
-
- m_tiffRep = data;
- return m_tiffRep;
-}
-
-NSImage* Image::getNSImage()
-{
- if (m_nsImage)
- return m_nsImage;
-
- CFDataRef data = getTIFFRepresentation();
- if (!data)
- return 0;
-
- m_nsImage = HardRetainWithNSRelease([[NSImage alloc] initWithData:(NSData*)data]);
- return m_nsImage;
-}
-
-CGImageRef Image::getCGImageRef()
-{
- return frameAtIndex(0);
-}
-
-void Image::draw(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator compositeOp)
-{
- if (m_isPDF) {
- if (m_PDFDoc)
- m_PDFDoc->draw(ctxt, srcRect, dstRect, compositeOp);
- return;
- }
-
- if (!m_source.initialized())
- return;
-
- CGRect fr = ctxt->roundToDevicePixels(srcRect);
- CGRect ir = ctxt->roundToDevicePixels(dstRect);
-
- CGImageRef image = frameAtIndex(m_currentFrame);
- if (!image) // If it's too early we won't have an image yet.
- return;
-
- if (m_isSolidColor && m_currentFrame == 0) {
- if (m_solidColor.alpha() > 0) {
- ctxt->save();
- ctxt->setCompositeOperation(!m_solidColor.hasAlpha() && compositeOp == CompositeSourceOver ? CompositeCopy : compositeOp);
- ctxt->fillRect(ir, m_solidColor);
- ctxt->restore();
- }
- return;
- }
-
- CGContextRef context = ctxt->platformContext();
- ctxt->save();
-
- // Get the height (in adjusted, i.e. scaled, coords) of the portion of the image
- // that is currently decoded. This could be less that the actual height.
- CGSize selfSize = size(); // full image size, in pixels
- float curHeight = CGImageGetHeight(image); // height of loaded portion, in pixels
-
- CGSize adjustedSize = selfSize;
- if (curHeight < selfSize.height) {
- adjustedSize.height *= curHeight / selfSize.height;
-
- // Is the amount of available bands less than what we need to draw? If so,
- // we may have to clip 'fr' if it goes outside the available bounds.
- if (CGRectGetMaxY(fr) > adjustedSize.height) {
- float frHeight = adjustedSize.height - fr.origin.y; // clip fr to available bounds
- if (frHeight <= 0)
- return; // clipped out entirely
- ir.size.height *= (frHeight / fr.size.height); // scale ir proportionally to fr
- fr.size.height = frHeight;
- }
- }
-
- // Flip the coords.
- ctxt->setCompositeOperation(compositeOp);
- CGContextTranslateCTM(context, ir.origin.x, ir.origin.y);
- CGContextScaleCTM(context, 1, -1);
- CGContextTranslateCTM(context, 0, -ir.size.height);
-
- // Translated to origin, now draw at 0,0.
- ir.origin.x = ir.origin.y = 0;
-
- // If we're drawing a sub portion of the image then create
- // a image for the sub portion and draw that.
- // Test using example site at http://www.meyerweb.com/eric/css/edge/complexspiral/demo.html
- if (fr.size.width != adjustedSize.width || fr.size.height != adjustedSize.height) {
- // Convert ft to image pixel coords:
- float xscale = adjustedSize.width / selfSize.width;
- float yscale = adjustedSize.height / curHeight; // yes, curHeight, not selfSize.height!
- fr.origin.x /= xscale;
- fr.origin.y /= yscale;
- fr.size.width /= xscale;
- fr.size.height /= yscale;
-
- image = CGImageCreateWithImageInRect(image, fr);
- if (image) {
- CGContextDrawImage(context, ir, image);
- CFRelease(image);
- }
- } else // Draw the whole image.
- CGContextDrawImage(context, ir, image);
-
- ctxt->restore();
-
- startAnimation();
-
-}
-
-static void drawPattern(void* info, CGContextRef context)
-{
- Image* data = (Image*)info;
- CGImageRef image = data->frameAtIndex(data->currentFrame());
- float w = CGImageGetWidth(image);
- float h = CGImageGetHeight(image);
- CGContextDrawImage(context, GraphicsContext(context).roundToDevicePixels(FloatRect
- (0, data->size().height() - h, w, h)), image);
-}
-
-static const CGPatternCallbacks patternCallbacks = { 0, drawPattern, NULL };
-
-void Image::drawTiled(GraphicsContext* ctxt, const FloatRect& destRect, const FloatPoint& srcPoint,
- const FloatSize& tileSize, CompositeOperator op)
-{
- CGImageRef image = frameAtIndex(m_currentFrame);
- if (!image)
- return;
-
- if (m_isSolidColor && m_currentFrame == 0) {
- if (m_solidColor.alpha() > 0) {
- ctxt->save();
- ctxt->setCompositeOperation(!m_solidColor.hasAlpha() && op == CompositeSourceOver ? CompositeCopy : op);
- ctxt->fillRect(destRect, m_solidColor);
- ctxt->restore();
- }
- return;
- }
-
- CGPoint scaledPoint = srcPoint;
- CGSize intrinsicTileSize = size();
- CGSize scaledTileSize = intrinsicTileSize;
-
- // If tileSize is not equal to the intrinsic size of the image, set patternTransform
- // to the appropriate scalar matrix, scale the source point, and set the size of the
- // scaled tile.
- float scaleX = 1.0;
- float scaleY = 1.0;
- CGAffineTransform patternTransform = CGAffineTransformIdentity;
- if (tileSize.width() != intrinsicTileSize.width || tileSize.height() != intrinsicTileSize.height) {
- scaleX = tileSize.width() / intrinsicTileSize.width;
- scaleY = tileSize.height() / intrinsicTileSize.height;
- patternTransform = CGAffineTransformMakeScale(scaleX, scaleY);
- scaledTileSize = tileSize;
- }
-
- // Check and see if a single draw of the image can cover the entire area we are supposed to tile.
- NSRect oneTileRect;
- oneTileRect.origin.x = destRect.x() + fmodf(fmodf(-scaledPoint.x, scaledTileSize.width) -
- scaledTileSize.width, scaledTileSize.width);
- oneTileRect.origin.y = destRect.y() + fmodf(fmodf(-scaledPoint.y, scaledTileSize.height) -
- scaledTileSize.height, scaledTileSize.height);
- oneTileRect.size.width = scaledTileSize.width;
- oneTileRect.size.height = scaledTileSize.height;
-
- // If the single image draw covers the whole area, then just draw once.
- if (NSContainsRect(oneTileRect, destRect)) {
- CGRect fromRect;
- fromRect.origin.x = (destRect.x() - oneTileRect.origin.x) / scaleX;
- fromRect.origin.y = (destRect.y() - oneTileRect.origin.y) / scaleY;
- fromRect.size.width = destRect.width() / scaleX;
- fromRect.size.height = destRect.height() / scaleY;
-
- draw(ctxt, destRect, fromRect, op);
- return;
- }
-
- CGPatternRef pattern = CGPatternCreate(this, CGRectMake(0, 0, intrinsicTileSize.width, intrinsicTileSize.height),
- patternTransform, intrinsicTileSize.width, intrinsicTileSize.height,
- kCGPatternTilingConstantSpacing, true, &patternCallbacks);
-
- if (pattern) {
- CGContextRef context = ctxt->platformContext();
-
- ctxt->save();
-
- wkSetPatternPhaseInUserSpace(context, CGPointMake(oneTileRect.origin.x, oneTileRect.origin.y));
-
- CGColorSpaceRef patternSpace = CGColorSpaceCreatePattern(NULL);
- CGContextSetFillColorSpace(context, patternSpace);
- CGColorSpaceRelease(patternSpace);
-
- CGFloat patternAlpha = 1;
- CGContextSetFillPattern(context, pattern, &patternAlpha);
-
- ctxt->setCompositeOperation(op);
-
- CGContextFillRect(context, destRect);
-
- ctxt->restore();
-
- CGPatternRelease(pattern);
- }
-
- startAnimation();
-}
-
-// FIXME: Merge with the other drawTiled eventually, since we need a combination of both for some things.
-void Image::drawTiled(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRect, TileRule hRule,
- TileRule vRule, CompositeOperator op)
-{
- CGImageRef image = frameAtIndex(m_currentFrame);
- if (!image)
- return;
-
- if (m_isSolidColor && m_currentFrame == 0) {
- if (m_solidColor.alpha() > 0) {
- ctxt->save();
- ctxt->setCompositeOperation(!m_solidColor.hasAlpha() && op == CompositeSourceOver ? CompositeCopy : op);
- ctxt->fillRect(dstRect, m_solidColor);
- ctxt->restore();
- }
- return;
- }
-
- ctxt->save();
-
- CGSize tileSize = srcRect.size();
- CGRect ir = dstRect;
- CGRect fr = srcRect;
-
- // Now scale the slice in the appropriate direction using an affine transform that we will pass into
- // the pattern.
- float scaleX = 1.0f, scaleY = 1.0f;
-
- if (hRule == Image::StretchTile)
- scaleX = ir.size.width / fr.size.width;
- if (vRule == Image::StretchTile)
- scaleY = ir.size.height / fr.size.height;
-
- if (hRule == Image::RepeatTile)
- scaleX = scaleY;
- if (vRule == Image::RepeatTile)
- scaleY = scaleX;
-
- if (hRule == Image::RoundTile) {
- // Complicated math ensues.
- float imageWidth = fr.size.width * scaleY;
- float newWidth = ir.size.width / ceilf(ir.size.width / imageWidth);
- scaleX = newWidth / fr.size.width;
- }
-
- if (vRule == Image::RoundTile) {
- // More complicated math ensues.
- float imageHeight = fr.size.height * scaleX;
- float newHeight = ir.size.height / ceilf(ir.size.height / imageHeight);
- scaleY = newHeight / fr.size.height;
- }
-
- CGAffineTransform patternTransform = CGAffineTransformMakeScale(scaleX, scaleY);
-
- // Possible optimization: We may want to cache the CGPatternRef
- CGPatternRef pattern = CGPatternCreate(this, CGRectMake(fr.origin.x, fr.origin.y, tileSize.width, tileSize.height),
- patternTransform, tileSize.width, tileSize.height,
- kCGPatternTilingConstantSpacing, true, &patternCallbacks);
- if (pattern) {
- CGContextRef context = ctxt->platformContext();
-
- // We want to construct the phase such that the pattern is centered (when stretch is not
- // set for a particular rule).
- float hPhase = scaleX * fr.origin.x;
- float vPhase = scaleY * (tileSize.height - fr.origin.y);
- if (hRule == Image::RepeatTile)
- hPhase -= fmodf(ir.size.width, scaleX * tileSize.width) / 2.0f;
- if (vRule == Image::RepeatTile)
- vPhase -= fmodf(ir.size.height, scaleY * tileSize.height) / 2.0f;
-
- wkSetPatternPhaseInUserSpace(context, CGPointMake(ir.origin.x - hPhase, ir.origin.y - vPhase));
-
- CGColorSpaceRef patternSpace = CGColorSpaceCreatePattern(NULL);
- CGContextSetFillColorSpace(context, patternSpace);
- CGColorSpaceRelease(patternSpace);
-
- CGFloat patternAlpha = 1;
- CGContextSetFillPattern(context, pattern, &patternAlpha);
-
- ctxt->setCompositeOperation(op);
-
- CGContextFillRect(context, ir);
-
- CGPatternRelease(pattern);
- }
-
- ctxt->restore();
-
- startAnimation();
-}
-
-}
git://git.webkit.org / WebKit-https.git / commitdiff