Searched defs:alpha (Results 101 - 125 of 243) sorted by relevance

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/external/webkit/Source/WebCore/platform/audio/
H A DSincResampler.cpp85 double alpha = 0.16; local
86 double a0 = 0.5 * (1.0 - alpha);
88 double a2 = 0.5 * alpha;
/external/webkit/Source/WebCore/platform/graphics/
H A DColor.h90 // Creates a new color from the specific CMYK and alpha values.
107 bool hasAlpha() const { return alpha() < 255; }
112 int alpha() const { return alphaChannel(m_color); } function in class:WebCore::Color
114 RGBA32 rgb() const { return m_color; } // Preserve the alpha.
134 // We can't sensibly go back to GdkColor without losing the alpha value
H A DGradient.h122 float alpha; member in struct:WebCore::Gradient::ColorStop
124 ColorStop() : stop(0), red(0), green(0), blue(0), alpha(0) { }
125 ColorStop(float s, float r, float g, float b, float a) : stop(s), red(r), green(g), blue(b), alpha(a) { }
/external/webkit/Source/WebCore/platform/graphics/android/context/
H A DPlatformGraphicsContext.h63 virtual void setAlpha(float alpha);
159 SkColor color; // alpha>0 means valid shadow
163 SkColor c = 0) // by default, alpha=0, so no shadow
172 float alpha; member in class:WebCore::PlatformGraphicsContext::State
/external/webkit/Source/WebCore/platform/graphics/cairo/
H A DContextShadowCairo.cpp133 void ContextShadow::drawRectShadowWithoutTiling(GraphicsContext* context, const IntRect& shadowRect, const IntSize& topLeftRadius, const IntSize& topRightRadius, const IntSize& bottomLeftRadius, const IntSize& bottomRightRadius, float alpha) argument
144 cairo_set_source_rgba(m_layerContext, 0, 0, 0, alpha);
/external/webkit/Source/WebCore/platform/graphics/cg/
H A DImageBufferDataCG.cpp179 unsigned char alpha = srcRows[basex + 3]; local
180 if (unmultiplied && alpha) {
181 destRows[basex] = (srcRows[basex] * 255) / alpha;
182 destRows[basex + 1] = (srcRows[basex + 1] * 255) / alpha;
183 destRows[basex + 2] = (srcRows[basex + 2] * 255) / alpha;
184 destRows[basex + 3] = alpha;
229 unsigned char alpha = srcRows[basex + 3]; local
230 if (unmultiplied && alpha) {
231 destRows[basex] = (srcRows[basex + 2] * 255) / alpha;
232 destRows[basex + 1] = (srcRows[basex + 1] * 255) / alpha;
316 unsigned char alpha = srcRows[basex + 3]; local
366 unsigned char alpha = srcRows[basex + 3]; local
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H A DImageCG.cpp343 CGFloat alpha = 1; local
344 RetainPtr<CGColorRef> color(AdoptCF, CGColorCreateWithPattern(patternSpace.get(), pattern.get(), &alpha));
/external/webkit/Source/WebCore/platform/graphics/filters/
H A DFilterEffect.cpp188 int alpha = sourceComponent[3]; local
189 if (alpha) {
190 destinationComponent[0] = static_cast<int>(sourceComponent[0]) * 255 / alpha;
191 destinationComponent[1] = static_cast<int>(sourceComponent[1]) * 255 / alpha;
192 destinationComponent[2] = static_cast<int>(sourceComponent[2]) * 255 / alpha;
198 destinationComponent[3] = alpha;
222 int alpha = sourceComponent[3]; local
223 destinationComponent[0] = static_cast<int>(sourceComponent[0]) * alpha / 255;
224 destinationComponent[1] = static_cast<int>(sourceComponent[1]) * alpha / 255;
225 destinationComponent[2] = static_cast<int>(sourceComponent[2]) * alpha / 25
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/external/webkit/Source/WebCore/platform/graphics/gstreamer/
H A DVideoSinkGStreamer.cpp168 // Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
190 unsigned short alpha; local
197 alpha = source[3];
198 destination[0] = (source[0] * alpha + 128) / 255;
199 destination[1] = (source[1] * alpha + 128) / 255;
200 destination[2] = (source[2] * alpha + 128) / 255;
201 destination[3] = alpha;
203 alpha = source[0];
204 destination[0] = alpha;
205 destination[1] = (source[1] * alpha
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/external/webkit/Source/WebCore/platform/graphics/win/
H A DFontCGWin.cpp138 if (!fillColor.alpha())
141 drawIntoBitmap = fillColor.alpha() != 255 || graphicsContext->inTransparencyLayer();
289 UInt8 alpha = (255 - buffer[i + 1]) * fillColor.alpha() / 255; local
293 buffer[i + 3] = alpha;
369 Color shadowFillColor(shadowColor.red(), shadowColor.green(), shadowColor.blue(), shadowColor.alpha() * fillColor.alpha() / 255);
H A DGraphicsContextCGWin.cpp168 CGFloat red, green, blue, alpha; local
169 color.getRGBA(red, green, blue, alpha);
170 CGContextSetRGBStrokeColor(context, red, green, blue, alpha);
/external/webkit/Source/WebCore/platform/graphics/wince/
H A DImageBufferWinCE.cpp159 int alpha = *src++; local
161 *dst++ = static_cast<unsigned char>((red * alpha + 254) / 255);
162 *dst++ = static_cast<unsigned char>((green * alpha + 254) / 255);
163 *dst++ = static_cast<unsigned char>((blue * alpha + 254) / 255);
164 *dst++ = static_cast<unsigned char>(alpha);
169 *dst++ = static_cast<unsigned char>(alpha);
217 int alpha = *src++; local
219 *dst++ = static_cast<unsigned char>(blue * 255 / alpha);
220 *dst++ = static_cast<unsigned char>(green * 255 / alpha);
221 *dst++ = static_cast<unsigned char>(red * 255 / alpha);
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H A DSharedBitmap.h67 void setHasAlpha(bool alpha) { m_hasAlpha = alpha; } argument
/external/webkit/Source/WebCore/platform/gtk/
H A DGtkVersioning.c158 guint alpha = src[x] >> 24; local
160 if (!alpha) {
165 destData[x * 4 + 0] = (((src[x] & 0xff0000) >> 16) * 255 + alpha / 2) / alpha;
166 destData[x * 4 + 1] = (((src[x] & 0x00ff00) >> 8) * 255 + alpha / 2) / alpha;
167 destData[x * 4 + 2] = (((src[x] & 0x0000ff) >> 0) * 255 + alpha / 2) / alpha;
169 destData[x * 4 + 3] = alpha;
214 * will contain an alpha channe
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/external/webkit/Source/WebCore/platform/image-decoders/bmp/
H A DBMPImageReader.cpp84 // setSize() calls eraseARGB(), which resets the alpha flag, so we force
106 // If the image has an AND mask and there was no alpha data, process the
249 // NOTE: We allow alpha here. Microsoft doesn't really document this well,
255 // *Except the alpha channel. Bizarrely, some RGB bitmaps expect decoders
256 // to pay attention to the alpha mask here, so there's a special case in
389 // For Windows V4+ 32-bit RGB, don't overwrite the alpha mask from the
410 // No alpha in anything other than Windows V4+.
425 // specify a bogus alpha channel in bits that don't exist in the pixel
430 // For empty masks (common on the alpha channel, especially after the
521 // framebuffer that we have alpha
703 int alpha = getAlpha(pixel); local
717 getComponent(pixel, 2), alpha); local
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/external/webkit/Source/WebCore/webaudio/
H A DRealtimeAnalyser.cpp134 double alpha = 0.16; local
135 double a0 = 0.5 * (1.0 - alpha);
137 double a2 = 0.5 * alpha;
/external/webkit/Source/WebKit2/WebProcess/InjectedBundle/API/c/
H A DWKBundleFrame.cpp214 bool WKBundleFrameGetDocumentBackgroundColor(WKBundleFrameRef frameRef, double* red, double* green, double* blue, double* alpha) argument
216 return toImpl(frameRef)->getDocumentBackgroundColor(red, green, blue, alpha);
/external/webkit/Tools/DumpRenderTree/cg/
H A DImageDiffCG.cpp121 float alpha = (pixel[3] - basePixel[3]) / max<float>(255 - basePixel[3], basePixel[3]); local
122 float distance = sqrtf(red * red + green * green + blue * blue + alpha * alpha) / 2.0f;
/external/webkit/Tools/DumpRenderTree/gtk/
H A DImageDiff.cpp119 float alpha = (actualPixel[3] - basePixel[3]) / max<float>(255 - basePixel[3], basePixel[3]); local
120 float distance = sqrtf(red * red + green * green + blue * blue + alpha * alpha) / 2.0f;
/external/webkit/Tools/DumpRenderTree/win/
H A DImageDiffCairo.cpp127 float alpha = pixelDifference(baselinePixel[3], actualPixel[3]); local
129 float distance = sqrtf(red * red + green * green + blue * blue + alpha * alpha) / 2.0;
/external/mesa3d/src/pixelflinger2/
H A Dllvm_texture.cpp91 Value * alpha = builder.CreateAnd(texel, builder.getInt32(0xff00)); local
95 texel = builder.CreateOr(texel, builder.CreateShl(alpha, 16));
/external/opencv/cv/src/
H A Dcvoptflowhs.cpp52 float alpha; /* alpha = 1 / ( 1/lambda + xx + yy ) */ member in struct:__anon9578
266 II[address].alpha = 1 / (Ilambda + II[address].xx + II[address].yy);
289 II[address].alpha = 1 / (Ilambda + II[address].xx + II[address].yy);
313 II[address].alpha = 1 / (Ilambda + II[address].xx + II[address].yy);
371 II[address].xy * averageY + II[address].xt) * II[address].alpha;
375 II[address].yy * averageY + II[address].yt) * II[address].alpha;
398 II[address].xy * averageY + II[address].xt) * II[address].alpha;
402 II[address].yy * averageY + II[address].yt) * II[address].alpha;
427 II[address].xy * averageY + II[address].xt) * II[address].alpha;
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H A Dcvsnakes.cpp58 // alpha - pointer to coefficient of continuity energy,
61 // coeffUsage - if CV_VALUE - alpha, beta, gamma point to single value
76 float *alpha,
129 if( alpha == NULL )
349 _alpha = *alpha;
355 _alpha = alpha[i];
410 int length, float *alpha,
433 alpha, beta, gamma, coeffUsage, win, criteria,
71 icvSnake8uC1R( unsigned char *src, int srcStep, CvSize roi, CvPoint * pt, int n, float *alpha, float *beta, float *gamma, int coeffUsage, CvSize win, CvTermCriteria criteria, int scheme ) argument
409 cvSnakeImage( const IplImage* src, CvPoint* points, int length, float *alpha, float *beta, float *gamma, int coeffUsage, CvSize win, CvTermCriteria criteria, int calcGradient ) argument
/external/opencv/cvaux/src/
H A Dcvbgfg_acmmm2003.cpp499 float alpha = stat->is_trained_dyn_model ? model->params.alpha2 : model->params.alpha3; local
504 stat->Pbcc *= (1.f-alpha);
507 stat->Pbcc += alpha;
514 PV_CC(k) *= (1-alpha);
515 PVB_CC(k) *= (1-alpha);
544 PV_CC(indx) = alpha;
545 PVB_CC(indx) = alpha;
555 PV_CC(indx) += alpha;
558 PVB_CC(indx) += alpha;
607 float alpha local
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/external/qemu/android/skin/
H A Dsurface.c448 uint32_t alpha = (color >> 24); local
450 if (alpha == 255)
459 alpha = 255 - alpha;
460 alpha += (alpha >> 7);
469 ARGB_MULSHIFT(dst_c,dst_c,alpha,8);
490 uint32_t alpha; local
493 alpha = 256 - (dst[0] >> 24);
494 ARGB_MULSHIFT(val,src_c,alpha,
545 uint32_t alpha; local
569 uint32_t alpha; local
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