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// Tencent is pleased to support the open source community by making ncnn available.
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// Copyright (C) 2022 THL A29 Limited, a Tencent company. All rights reserved.
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// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
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// in compliance with the License. You may obtain a copy of the License at
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// https://opensource.org/licenses/BSD-3-Clause
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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#extension GL_EXT_shader_16bit_storage: require
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struct sfpvec8 { f16vec4 abcd; f16vec4 efgh; };
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#if NCNN_fp16_arithmetic
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#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
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layout (constant_id = 0) const int maxk = 1;
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#define shape_constant_id_offset 1
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layout (constant_id = shape_constant_id_offset + 0) const int w = 0;
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layout (constant_id = shape_constant_id_offset + 1) const int h = 0;
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layout (constant_id = shape_constant_id_offset + 2) const int c = 0;
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layout (constant_id = shape_constant_id_offset + 3) const int cstep = 0;
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layout (constant_id = shape_constant_id_offset + 4) const int outw = 0;
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layout (constant_id = shape_constant_id_offset + 5) const int outh = 0;
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layout (binding = 0) uniform unfp sampler3D bottom_blob;
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layout (binding = 1, imfmtc4) writeonly uniform unfp image3D col_blob;
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layout (binding = 2) uniform unfp sampler3D weight_blob;
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layout (binding = 0) readonly buffer bottom_blob { sfpvec8 bottom_blob_data[]; };
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layout (binding = 1) writeonly buffer col_blob { sfpvec8 col_blob_data[]; };
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layout (binding = 2) readonly buffer weight_blob { sfpvec8 weight_data[]; };
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layout (push_constant) uniform parameter
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int gx = int(gl_GlobalInvocationID.x) * 4;
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int gy = int(gl_GlobalInvocationID.y);
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if (gx >= psc(outw) || gy >= psc(outh))
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afpvec8 sum0 = afpvec8(afpvec4(0.f), afpvec4(0.f));
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afpvec8 sum1 = afpvec8(afpvec4(0.f), afpvec4(0.f));
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afpvec8 sum2 = afpvec8(afpvec4(0.f), afpvec4(0.f));
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afpvec8 sum3 = afpvec8(afpvec4(0.f), afpvec4(0.f));
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ivec4 gx4 = gx + ivec4(0, 1, 2, 3);
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ivec4 sy4 = gx4 / psc(w);
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ivec4 sx4 = gx4 % psc(w);
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for (int z = 0; z < psc(c); z++)
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afpvec8 v0 = image3d_ld8(bottom_blob, ivec3(sx4.r, sy4.r, z));
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afpvec8 v1 = image3d_ld8(bottom_blob, ivec3(sx4.g, sy4.g, z));
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afpvec8 v2 = image3d_ld8(bottom_blob, ivec3(sx4.b, sy4.b, z));
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afpvec8 v3 = image3d_ld8(bottom_blob, ivec3(sx4.a, sy4.a, z));
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afpvec8 k0 = image3d_ld8(weight_blob, ivec3(z * 8 + 0, gy, 0));
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afpvec8 k1 = image3d_ld8(weight_blob, ivec3(z * 8 + 1, gy, 0));
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afpvec8 k2 = image3d_ld8(weight_blob, ivec3(z * 8 + 2, gy, 0));
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afpvec8 k3 = image3d_ld8(weight_blob, ivec3(z * 8 + 3, gy, 0));
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afpvec8 k4 = image3d_ld8(weight_blob, ivec3(z * 8 + 4, gy, 0));
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afpvec8 k5 = image3d_ld8(weight_blob, ivec3(z * 8 + 5, gy, 0));
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afpvec8 k6 = image3d_ld8(weight_blob, ivec3(z * 8 + 6, gy, 0));
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afpvec8 k7 = image3d_ld8(weight_blob, ivec3(z * 8 + 7, gy, 0));
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sum0[0].r += dot(v0[0], k0[0]) + dot(v0[1], k0[1]);
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sum0[0].g += dot(v0[0], k1[0]) + dot(v0[1], k1[1]);
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sum0[0].b += dot(v0[0], k2[0]) + dot(v0[1], k2[1]);
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sum0[0].a += dot(v0[0], k3[0]) + dot(v0[1], k3[1]);
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sum0[1].r += dot(v0[0], k4[0]) + dot(v0[1], k4[1]);
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sum0[1].g += dot(v0[0], k5[0]) + dot(v0[1], k5[1]);
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sum0[1].b += dot(v0[0], k6[0]) + dot(v0[1], k6[1]);
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sum0[1].a += dot(v0[0], k7[0]) + dot(v0[1], k7[1]);
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sum1[0].r += dot(v1[0], k0[0]) + dot(v1[1], k0[1]);
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sum1[0].g += dot(v1[0], k1[0]) + dot(v1[1], k1[1]);
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sum1[0].b += dot(v1[0], k2[0]) + dot(v1[1], k2[1]);
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sum1[0].a += dot(v1[0], k3[0]) + dot(v1[1], k3[1]);
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sum1[1].r += dot(v1[0], k4[0]) + dot(v1[1], k4[1]);
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sum1[1].g += dot(v1[0], k5[0]) + dot(v1[1], k5[1]);
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sum1[1].b += dot(v1[0], k6[0]) + dot(v1[1], k6[1]);
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sum1[1].a += dot(v1[0], k7[0]) + dot(v1[1], k7[1]);
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sum2[0].r += dot(v2[0], k0[0]) + dot(v2[1], k0[1]);
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sum2[0].g += dot(v2[0], k1[0]) + dot(v2[1], k1[1]);
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sum2[0].b += dot(v2[0], k2[0]) + dot(v2[1], k2[1]);
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sum2[0].a += dot(v2[0], k3[0]) + dot(v2[1], k3[1]);
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sum2[1].r += dot(v2[0], k4[0]) + dot(v2[1], k4[1]);
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sum2[1].g += dot(v2[0], k5[0]) + dot(v2[1], k5[1]);
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sum2[1].b += dot(v2[0], k6[0]) + dot(v2[1], k6[1]);
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sum2[1].a += dot(v2[0], k7[0]) + dot(v2[1], k7[1]);
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sum3[0].r += dot(v3[0], k0[0]) + dot(v3[1], k0[1]);
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sum3[0].g += dot(v3[0], k1[0]) + dot(v3[1], k1[1]);
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sum3[0].b += dot(v3[0], k2[0]) + dot(v3[1], k2[1]);
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sum3[0].a += dot(v3[0], k3[0]) + dot(v3[1], k3[1]);
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sum3[1].r += dot(v3[0], k4[0]) + dot(v3[1], k4[1]);
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sum3[1].g += dot(v3[0], k5[0]) + dot(v3[1], k5[1]);
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sum3[1].b += dot(v3[0], k6[0]) + dot(v3[1], k6[1]);
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sum3[1].a += dot(v3[0], k7[0]) + dot(v3[1], k7[1]);
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int w_offset = gy * psc(c) * 8;
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for (int z = 0; z < psc(c); z++)
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afpvec8 v0 = buffer_ld8(bottom_blob_data, v_offset + 0);
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afpvec8 v1 = buffer_ld8(bottom_blob_data, v_offset + 1);
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afpvec8 v2 = buffer_ld8(bottom_blob_data, v_offset + 2);
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afpvec8 v3 = buffer_ld8(bottom_blob_data, v_offset + 3);
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afpvec8 k0 = buffer_ld8(weight_data, w_offset + 0);
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afpvec8 k1 = buffer_ld8(weight_data, w_offset + 1);
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afpvec8 k2 = buffer_ld8(weight_data, w_offset + 2);
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afpvec8 k3 = buffer_ld8(weight_data, w_offset + 3);
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afpvec8 k4 = buffer_ld8(weight_data, w_offset + 4);
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afpvec8 k5 = buffer_ld8(weight_data, w_offset + 5);
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afpvec8 k6 = buffer_ld8(weight_data, w_offset + 6);
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afpvec8 k7 = buffer_ld8(weight_data, w_offset + 7);
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sum0[0].r += dot(v0[0], k0[0]) + dot(v0[1], k0[1]);
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sum0[0].g += dot(v0[0], k1[0]) + dot(v0[1], k1[1]);
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sum0[0].b += dot(v0[0], k2[0]) + dot(v0[1], k2[1]);
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sum0[0].a += dot(v0[0], k3[0]) + dot(v0[1], k3[1]);
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sum0[1].r += dot(v0[0], k4[0]) + dot(v0[1], k4[1]);
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sum0[1].g += dot(v0[0], k5[0]) + dot(v0[1], k5[1]);
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sum0[1].b += dot(v0[0], k6[0]) + dot(v0[1], k6[1]);
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sum0[1].a += dot(v0[0], k7[0]) + dot(v0[1], k7[1]);
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sum1[0].r += dot(v1[0], k0[0]) + dot(v1[1], k0[1]);
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sum1[0].g += dot(v1[0], k1[0]) + dot(v1[1], k1[1]);
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sum1[0].b += dot(v1[0], k2[0]) + dot(v1[1], k2[1]);
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sum1[0].a += dot(v1[0], k3[0]) + dot(v1[1], k3[1]);
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sum1[1].r += dot(v1[0], k4[0]) + dot(v1[1], k4[1]);
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sum1[1].g += dot(v1[0], k5[0]) + dot(v1[1], k5[1]);
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sum1[1].b += dot(v1[0], k6[0]) + dot(v1[1], k6[1]);
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sum1[1].a += dot(v1[0], k7[0]) + dot(v1[1], k7[1]);
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sum2[0].r += dot(v2[0], k0[0]) + dot(v2[1], k0[1]);
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sum2[0].g += dot(v2[0], k1[0]) + dot(v2[1], k1[1]);
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sum2[0].b += dot(v2[0], k2[0]) + dot(v2[1], k2[1]);
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sum2[0].a += dot(v2[0], k3[0]) + dot(v2[1], k3[1]);
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sum2[1].r += dot(v2[0], k4[0]) + dot(v2[1], k4[1]);
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sum2[1].g += dot(v2[0], k5[0]) + dot(v2[1], k5[1]);
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sum2[1].b += dot(v2[0], k6[0]) + dot(v2[1], k6[1]);
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sum2[1].a += dot(v2[0], k7[0]) + dot(v2[1], k7[1]);
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sum3[0].r += dot(v3[0], k0[0]) + dot(v3[1], k0[1]);
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sum3[0].g += dot(v3[0], k1[0]) + dot(v3[1], k1[1]);
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sum3[0].b += dot(v3[0], k2[0]) + dot(v3[1], k2[1]);
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sum3[0].a += dot(v3[0], k3[0]) + dot(v3[1], k3[1]);
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sum3[1].r += dot(v3[0], k4[0]) + dot(v3[1], k4[1]);
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sum3[1].g += dot(v3[0], k5[0]) + dot(v3[1], k5[1]);
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sum3[1].b += dot(v3[0], k6[0]) + dot(v3[1], k6[1]);
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sum3[1].a += dot(v3[0], k7[0]) + dot(v3[1], k7[1]);
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v_offset += psc(cstep);
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image3d_st8(col_blob, ivec3(gx4.r, gy, 0), sum0);
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image3d_st8(col_blob, ivec3(gx4.g, gy, 0), sum1);
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image3d_st8(col_blob, ivec3(gx4.b, gy, 0), sum2);
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image3d_st8(col_blob, ivec3(gx4.a, gy, 0), sum3);
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const int gi = gy * psc(outw) + gx;
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buffer_st8(col_blob_data, gi, sum0);
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if (gx + 1 < psc(outw)) buffer_st8(col_blob_data, gi + 1, sum1);
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if (gx + 2 < psc(outw)) buffer_st8(col_blob_data, gi + 2, sum2);
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if (gx + 3 < psc(outw)) buffer_st8(col_blob_data, gi + 3, sum3);