211             fragBuilder->codeAppendf("float2 dxy0 = %s.LT - sk_FragCoord.xy;", rectName);  in emitCode()
212             fragBuilder->codeAppendf("float2 dxy1 = sk_FragCoord.xy - %s.RB;", rectName);  in emitCode()
214             fragBuilder->codeAppendf("half alpha = half(%s);", clampedCircleDistance.c_str());  in emitCode()
217             fragBuilder->codeAppendf("float2 dxy = max(%s.LT - sk_FragCoord.xy, 0.0);",  in emitCode()
219             fragBuilder->codeAppendf("half rightAlpha = half(saturate(%s.R - sk_FragCoord.x));",  in emitCode()
221             fragBuilder->codeAppendf("half bottomAlpha = half(saturate(%s.B - sk_FragCoord.y));",  in emitCode()
223             fragBuilder->codeAppendf("half alpha = bottomAlpha * rightAlpha * half(%s);",  in emitCode()
227             fragBuilder->codeAppendf("float2 dxy = max(float2(sk_FragCoord.x - %s.R, "  in emitCode()
230             fragBuilder->codeAppendf("half leftAlpha = half(saturate(sk_FragCoord.x - %s.L));",  in emitCode()
232             fragBuilder->codeAppendf("half bottomAlpha = half(saturate(%s.B - sk_FragCoord.y));",  in emitCode()
234             fragBuilder->codeAppendf("half alpha = bottomAlpha * leftAlpha * half(%s);",  in emitCode()
238             fragBuilder->codeAppendf("float2 dxy = max(sk_FragCoord.xy - %s.RB, 0.0);",  in emitCode()
240             fragBuilder->codeAppendf("half leftAlpha = half(saturate(sk_FragCoord.x - %s.L));",  in emitCode()
242             fragBuilder->codeAppendf("half topAlpha = half(saturate(sk_FragCoord.y - %s.T));",  in emitCode()
244             fragBuilder->codeAppendf("half alpha = topAlpha * leftAlpha * half(%s);",  in emitCode()
248             fragBuilder->codeAppendf("float2 dxy = max(float2(%s.L - sk_FragCoord.x, "  in emitCode()
251             fragBuilder->codeAppendf("half rightAlpha = half(saturate(%s.R - sk_FragCoord.x));",  in emitCode()
253             fragBuilder->codeAppendf("half topAlpha = half(saturate(sk_FragCoord.y - %s.T));",  in emitCode()
255             fragBuilder->codeAppendf("half alpha = topAlpha * rightAlpha * half(%s);",  in emitCode()
259             fragBuilder->codeAppendf("float2 dxy0 = %s.LT - sk_FragCoord.xy;", rectName);  in emitCode()
260             fragBuilder->codeAppendf("float dy1 = sk_FragCoord.y - %s.B;", rectName);  in emitCode()
262             fragBuilder->codeAppendf("half rightAlpha = half(saturate(%s.R - sk_FragCoord.x));",  in emitCode()
264             fragBuilder->codeAppendf("half alpha = rightAlpha * half(%s);",  in emitCode()
268             fragBuilder->codeAppendf("float2 dxy0 = %s.LT - sk_FragCoord.xy;", rectName);  in emitCode()
269             fragBuilder->codeAppendf("float dx1 = sk_FragCoord.x - %s.R;", rectName);  in emitCode()
271             fragBuilder->codeAppendf("half bottomAlpha = half(saturate(%s.B - sk_FragCoord.y));",  in emitCode()
273             fragBuilder->codeAppendf("half alpha = bottomAlpha * half(%s);",  in emitCode()
277             fragBuilder->codeAppendf("float dy0 = %s.T - sk_FragCoord.y;", rectName);  in emitCode()
278             fragBuilder->codeAppendf("float2 dxy1 = sk_FragCoord.xy - %s.RB;", rectName);  in emitCode()
280             fragBuilder->codeAppendf("half leftAlpha = half(saturate(sk_FragCoord.x - %s.L));",  in emitCode()
282             fragBuilder->codeAppendf("half alpha = leftAlpha * half(%s);",  in emitCode()
286             fragBuilder->codeAppendf("float dx0 = %s.L - sk_FragCoord.x;", rectName);  in emitCode()
287             fragBuilder->codeAppendf("float2 dxy1 = sk_FragCoord.xy - %s.RB;", rectName);  in emitCode()
289             fragBuilder->codeAppendf("half topAlpha = half(saturate(sk_FragCoord.y - %s.T));",  in emitCode()
291             fragBuilder->codeAppendf("half alpha = topAlpha * half(%s);",  in emitCode()
302     fragBuilder->codeAppendf("return %s * alpha;", inputSample.c_str());  in emitCode()
558     fragBuilder->codeAppendf("float2 dxy0 = %s.LT - sk_FragCoord.xy;", rectName);  in emitCode()
559     fragBuilder->codeAppendf("float2 dxy1 = sk_FragCoord.xy - %s.RB;", rectName);  in emitCode()
581                 fragBuilder->codeAppendf("dxy *= %s.y;", scaleName);  in emitCode()
584             fragBuilder->codeAppendf("float2 Z = dxy * %s.xy;", invRadiiXYSqdName);  in emitCode()
595                 fragBuilder->codeAppendf("dxy0 *= %s.y;", scaleName);  in emitCode()
596                 fragBuilder->codeAppendf("dxy1 *= %s.y;", scaleName);  in emitCode()
602             fragBuilder->codeAppendf("float2 Z = max(max(dxy0 * %s.xy, dxy1 * %s.zw), 0.0);",  in emitCode()
618         fragBuilder->codeAppendf("approx_dist *= %s.x;", scaleName);  in emitCode()
629     fragBuilder->codeAppendf("return %s * alpha;", inputSample.c_str());  in emitCode()