168         fragBuilder->codeAppendf("for (int i = 0; i < %d; ++i)", (int)kernelArea);  in emitKernelBlock()
178         fragBuilder->codeAppendf("k = %s.w + %s;", kernelSample.c_str(), kernelBias);  in emitKernelBlock()
179         fragBuilder->codeAppendf("sourceOffset.y = floor(half(i) / %d);", kernelWidth);  in emitKernelBlock()
180         fragBuilder->codeAppendf("sourceOffset.x = half(i) - sourceOffset.y * %d;", kernelWidth);  in emitKernelBlock()
182         fragBuilder->codeAppendf("sourceOffset = half2(%d, %d);", loc.x(), loc.y());  in emitKernelBlock()
185         fragBuilder->codeAppendf("k = %s[%d][%d];", kernel, offset / 4, offset & 0x3);  in emitKernelBlock()
189     fragBuilder->codeAppendf("half4 c = %s;", sample.c_str());  in emitKernelBlock()
225     fragBuilder->codeAppendf("float2 coord = %s - %s;", args.fSampleCoord, kernelOffset);  in emitCode()
237     fragBuilder->codeAppendf("half4 color;");  in emitCode()
239         fragBuilder->codeAppendf("color = sum * %s + %s;", gain, bias);  in emitCode()
240         fragBuilder->codeAppendf("color.a = saturate(color.a);");  in emitCode()
241         fragBuilder->codeAppendf("color.rgb = clamp(color.rgb, 0.0, color.a);");  in emitCode()
244         fragBuilder->codeAppendf("half4 c = %s;", sample.c_str());  in emitCode()
245         fragBuilder->codeAppendf("color.a = c.a;");  in emitCode()
246         fragBuilder->codeAppendf("color.rgb = saturate(sum.rgb * %s + %s);", gain, bias);  in emitCode()
247         fragBuilder->codeAppendf("color.rgb *= color.a;");  in emitCode()
249     fragBuilder->codeAppendf("return color;");  in emitCode()