1 /*
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2007-2009 Torch Mobile Inc.
4 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "Image.h"
29
30 #include "BitmapImage.h"
31 #include "GraphicsContext.h"
32 #include "ImageDecoder.h"
33 #include "NotImplemented.h"
34 #include "PlatformString.h"
35 #include "SharedBuffer.h"
36 #include "TransformationMatrix.h"
37 #include "WinceGraphicsExtras.h"
38 #include <wtf/OwnPtr.h>
39
40 #include <windows.h>
41
42 namespace WebCore {
43
asNewNativeImage() const44 NativeImagePtr ImageFrame::asNewNativeImage() const
45 {
46 return SharedBitmap::create(m_backingStore, m_size, hasAlpha());
47 }
48
clear(bool clearMetaData)49 bool FrameData::clear(bool clearMetaData)
50 {
51 if (clearMetaData)
52 m_haveMetadata = false;
53
54 if (m_frame) {
55 m_frame = 0;
56 return true;
57 }
58
59 return false;
60 }
61
getHBITMAPOfSize(HBITMAP bmp,LPSIZE size)62 bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, LPSIZE size)
63 {
64 if (!bmp)
65 return false;
66
67 BITMAP bmpInfo;
68 GetObject(bmp, sizeof(BITMAP), &bmpInfo);
69
70 ASSERT(bmpInfo.bmBitsPixel == 32);
71 int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight;
72
73 OwnPtr<HDC> hdc(CreateCompatibleDC(0));
74 HGDIOBJ hOldBmp = SelectObject(hdc.get(), bmp);
75
76 {
77 GraphicsContext gc(hdc.get());
78
79 IntSize imageSize = BitmapImage::size();
80 if (size)
81 drawFrameMatchingSourceSize(&gc, FloatRect(0, 0, bmpInfo.bmWidth, bmpInfo.bmHeight), IntSize(*size), ColorSpaceDeviceRGB, CompositeCopy);
82 else
83 draw(&gc, FloatRect(0, 0, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0, 0, imageSize.width(), imageSize.height()), ColorSpaceDeviceRGB, CompositeCopy);
84 }
85
86 SelectObject(hdc.get(), hOldBmp);
87
88 return true;
89 }
90
drawFrameMatchingSourceSize(GraphicsContext * ctxt,const FloatRect & dstRect,const IntSize & srcSize,ColorSpace styleColorSpace,CompositeOperator compositeOp)91 void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator compositeOp)
92 {
93 int frames = frameCount();
94 for (int i = 0; i < frames; ++i) {
95 RefPtr<SharedBitmap> bmp = frameAtIndex(i);
96 if (!bmp || bmp->height() != static_cast<unsigned>(srcSize.height()) || bmp->width() != static_cast<unsigned>(srcSize.width()))
97 continue;
98
99 size_t currentFrame = m_currentFrame;
100 m_currentFrame = i;
101 draw(ctxt, dstRect, FloatRect(0, 0, srcSize.width(), srcSize.height()), styleColorSpace, compositeOp);
102 m_currentFrame = currentFrame;
103 return;
104 }
105
106 // No image of the correct size was found, fallback to drawing the current frame
107 IntSize imageSize = BitmapImage::size();
108 draw(ctxt, dstRect, FloatRect(0, 0, imageSize.width(), imageSize.height()), styleColorSpace, compositeOp);
109 }
110
draw(GraphicsContext * ctxt,const FloatRect & dstRect,const FloatRect & srcRectIn,ColorSpace styleColorSpace,CompositeOperator compositeOp)111 void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRectIn, ColorSpace styleColorSpace, CompositeOperator compositeOp)
112 {
113 if (!m_source.initialized())
114 return;
115
116 if (mayFillWithSolidColor())
117 fillWithSolidColor(ctxt, dstRect, solidColor(), styleColorSpace, compositeOp);
118 else {
119 IntRect intSrcRect(srcRectIn);
120 RefPtr<SharedBitmap> bmp = frameAtIndex(m_currentFrame);
121
122 if (bmp->width() != m_source.size().width()) {
123 double scaleFactor = static_cast<double>(bmp->width()) / m_source.size().width();
124
125 intSrcRect.setX(stableRound(srcRectIn.x() * scaleFactor));
126 intSrcRect.setWidth(stableRound(srcRectIn.width() * scaleFactor));
127 intSrcRect.setY(stableRound(srcRectIn.y() * scaleFactor));
128 intSrcRect.setHeight(stableRound(srcRectIn.height() * scaleFactor));
129 }
130 bmp->draw(ctxt, enclosingIntRect(dstRect), intSrcRect, styleColorSpace, compositeOp);
131 }
132
133 startAnimation();
134 }
135
drawPattern(GraphicsContext * ctxt,const FloatRect & tileRect,const AffineTransform & patternTransform,const FloatPoint & phase,ColorSpace styleColorSpace,CompositeOperator op,const FloatRect & destRect)136 void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
137 const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
138 {
139 notImplemented();
140 }
141
drawPattern(GraphicsContext * ctxt,const FloatRect & tileRectIn,const AffineTransform & patternTransform,const FloatPoint & phase,ColorSpace styleColorSpace,CompositeOperator op,const FloatRect & destRect)142 void BitmapImage::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRectIn, const AffineTransform& patternTransform,
143 const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
144 {
145 RefPtr<SharedBitmap> bmp = nativeImageForCurrentFrame();
146 if (!bmp)
147 return;
148
149 bmp->drawPattern(ctxt, tileRectIn, patternTransform, phase, styleColorSpace, op, destRect, m_source.size());
150 }
151
checkForSolidColor()152 void BitmapImage::checkForSolidColor()
153 {
154 if (m_checkedForSolidColor)
155 return;
156
157 if (frameCount() != 1) {
158 m_isSolidColor = false;
159 m_checkedForSolidColor = true;
160 return;
161 }
162
163 RefPtr<SharedBitmap> bmp = frameAtIndex(0);
164 if (!bmp || !bmp->validHeight()) {
165 m_isSolidColor = false;
166 return;
167 }
168
169 if (bmp->width() != 1 || bmp->validHeight() != 1) {
170 m_isSolidColor = false;
171 m_checkedForSolidColor = true;
172 return;
173 }
174
175 m_isSolidColor = true;
176
177 if (bmp->is16bit()) {
178 unsigned short c = ((unsigned short *)bmp->bytes())[0];
179 int r = (c >> 7) & 0xF8;
180 int g = (c >> 2) & 0xF8;
181 int b = (c << 3) & 0xF8;
182 if (bmp->usesTransparentColor() && bmp->transparentColor() == RGB(r, g, b))
183 m_solidColor = Color(r, g, b, 0);
184 else
185 m_solidColor = Color(r, g, b);
186 } else {
187 unsigned c = ((unsigned *)bmp->bytes())[0];
188 m_solidColor = Color(c);
189 }
190
191 if (bmp->validHeight() == bmp->height())
192 m_checkedForSolidColor = true;
193 }
194
195 } // namespace WebCore
196