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| 1 /* |
| 2 * Copyright 2013 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #pragma OPENCL_EXTENSION cl_khr_global_int32_base_atomics |
| 9 |
| 10 const sampler_t gInSampler = CLK_NORMALIZED_COORDS_FALSE | |
| 11 CLK_ADDRESS_CLAMP_TO_EDGE | |
| 12 CLK_FILTER_NEAREST; |
| 13 |
| 14 __kernel void diff(read_only image2d_t baseline, read_only image2d_t test, __glo
bal int* result) { |
| 15 int2 coord = (int2)(get_global_id(0), get_global_id(1)); |
| 16 uint4 baselinePixel = read_imageui(baseline, gInSampler, coord); |
| 17 uint4 testPixel = read_imageui(test, gInSampler, coord); |
| 18 int4 pixelCompare = baselinePixel == testPixel; |
| 19 if (baselinePixel.x != testPixel.x || |
| 20 baselinePixel.y != testPixel.y || |
| 21 baselinePixel.z != testPixel.z || |
| 22 baselinePixel.w != testPixel.w) { |
| 23 |
| 24 atom_inc(result); |
| 25 } |
| 26 } |
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