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260 lines
7.3 KiB
260 lines
7.3 KiB
//
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// Copyright (c) 2017 The Khronos Group Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "harness/compat.h"
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "procs.h"
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static const char *smoothstep_kernel_code =
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"__kernel void test_smoothstep(__global float *edge0, __global float *edge1, __global float *x, __global float *dst)\n"
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"{\n"
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" int tid = get_global_id(0);\n"
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"\n"
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" dst[tid] = smoothstep(edge0[tid], edge1[tid], x[tid]);\n"
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"}\n";
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static const char *smoothstep2_kernel_code =
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"__kernel void test_smoothstep2f(__global float *edge0, __global float *edge1, __global float2 *x, __global float2 *dst)\n"
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"{\n"
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" int tid = get_global_id(0);\n"
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"\n"
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" dst[tid] = smoothstep(edge0[tid], edge1[tid], x[tid]);\n"
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"}\n";
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static const char *smoothstep4_kernel_code =
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"__kernel void test_smoothstep4f(__global float *edge0, __global float *edge1, __global float4 *x, __global float4 *dst)\n"
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"{\n"
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" int tid = get_global_id(0);\n"
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"\n"
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" dst[tid] = smoothstep(edge0[tid], edge1[tid], x[tid]);\n"
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"}\n";
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#define MAX_ERR (1e-5f)
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float verify_smoothstep(float *edge0, float *edge1, float *x, float *outptr,
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int n, int veclen)
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{
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float r, t, delta, max_err = 0.0f;
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int i, j;
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for (i = 0; i < n; ++i) {
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int vi = i * veclen;
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for (j = 0; j < veclen; ++j, ++vi) {
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t = (x[vi] - edge0[i]) / (edge1[i] - edge0[i]);
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if (t < 0.0f)
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t = 0.0f;
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else if (t > 1.0f)
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t = 1.0f;
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r = t * t * (3.0f - 2.0f * t);
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delta = (float)fabs(r - outptr[vi]);
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if (delta > max_err)
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max_err = delta;
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}
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}
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return max_err;
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}
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const static char *fn_names[] = { "SMOOTHSTEP float", "SMOOTHSTEP float2", "SMOOTHSTEP float4"};
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int
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test_smoothstepf(cl_device_id device, cl_context context, cl_command_queue queue, int n_elems)
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{
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cl_mem streams[4];
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cl_float *input_ptr[3], *output_ptr, *p, *p_edge0;
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cl_program program[3];
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cl_kernel kernel[3];
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size_t threads[1];
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float max_err = 0.0f;
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int num_elements;
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int err;
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int i;
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MTdata d;
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num_elements = n_elems * 4;
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input_ptr[0] = (cl_float*)malloc(sizeof(cl_float) * num_elements);
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input_ptr[1] = (cl_float*)malloc(sizeof(cl_float) * num_elements);
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input_ptr[2] = (cl_float*)malloc(sizeof(cl_float) * num_elements);
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output_ptr = (cl_float*)malloc(sizeof(cl_float) * num_elements);
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streams[0] = clCreateBuffer(context, CL_MEM_READ_WRITE,
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sizeof(cl_float) * num_elements, NULL, NULL);
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if (!streams[0])
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{
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log_error("clCreateBuffer failed\n");
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return -1;
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}
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streams[1] = clCreateBuffer(context, CL_MEM_READ_WRITE,
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sizeof(cl_float) * num_elements, NULL, NULL);
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if (!streams[1])
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{
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log_error("clCreateBuffer failed\n");
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return -1;
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}
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streams[2] = clCreateBuffer(context, CL_MEM_READ_WRITE,
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sizeof(cl_float) * num_elements, NULL, NULL);
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if (!streams[2])
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{
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log_error("clCreateBuffer failed\n");
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return -1;
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}
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streams[3] = clCreateBuffer(context, CL_MEM_READ_WRITE,
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sizeof(cl_float) * num_elements, NULL, NULL);
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if (!streams[3])
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{
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log_error("clCreateBuffer failed\n");
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return -1;
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}
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d = init_genrand( gRandomSeed );
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p = input_ptr[0];
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for (i=0; i<num_elements; i++)
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{
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p[i] = get_random_float(-0x00200000, 0x00200000, d);
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}
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p = input_ptr[1];
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p_edge0 = input_ptr[0];
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for (i=0; i<num_elements; i++)
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{
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float edge0 = p_edge0[i];
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float edge1;
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do {
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edge1 = get_random_float( -0x00200000, 0x00200000, d);
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if (edge0 < edge1)
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break;
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} while (1);
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p[i] = edge1;
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}
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p = input_ptr[2];
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for (i=0; i<num_elements; i++)
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{
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p[i] = get_random_float(-0x00200000, 0x00200000, d);
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}
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free_mtdata(d);
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d = NULL;
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err = clEnqueueWriteBuffer( queue, streams[0], true, 0, sizeof(cl_float)*num_elements, (void *)input_ptr[0], 0, NULL, NULL );
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if (err != CL_SUCCESS)
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{
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log_error("clWriteArray failed\n");
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return -1;
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}
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err = clEnqueueWriteBuffer( queue, streams[1], true, 0, sizeof(cl_float)*num_elements, (void *)input_ptr[1], 0, NULL, NULL );
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if (err != CL_SUCCESS)
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{
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log_error("clWriteArray failed\n");
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return -1;
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}
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err = clEnqueueWriteBuffer( queue, streams[2], true, 0, sizeof(cl_float)*num_elements, (void *)input_ptr[2], 0, NULL, NULL );
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if (err != CL_SUCCESS)
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{
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log_error("clWriteArray failed\n");
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return -1;
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}
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err = create_single_kernel_helper( context, &program[0], &kernel[0], 1, &smoothstep_kernel_code, "test_smoothstep" );
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if (err)
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return -1;
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err = create_single_kernel_helper( context, &program[1], &kernel[1], 1, &smoothstep2_kernel_code, "test_smoothstep2f" );
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if (err)
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return -1;
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err = create_single_kernel_helper( context, &program[2], &kernel[2], 1, &smoothstep4_kernel_code, "test_smoothstep4f" );
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if (err)
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return -1;
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for (i=0; i<3; i++)
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{
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err = clSetKernelArg(kernel[i], 0, sizeof streams[0], &streams[0] );
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err |= clSetKernelArg(kernel[i], 1, sizeof streams[1], &streams[1] );
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err |= clSetKernelArg(kernel[i], 2, sizeof streams[2], &streams[2] );
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err |= clSetKernelArg(kernel[i], 3, sizeof streams[3], &streams[3] );
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if (err != CL_SUCCESS)
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{
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log_error("clSetKernelArgs failed\n");
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return -1;
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}
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}
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threads[0] = (size_t)n_elems;
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for (i=0; i<3; i++)
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{
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err = clEnqueueNDRangeKernel( queue, kernel[i], 1, NULL, threads, NULL, 0, NULL, NULL );
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if (err != CL_SUCCESS)
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{
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log_error("clEnqueueNDRangeKernel failed\n");
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return -1;
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}
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err = clEnqueueReadBuffer( queue, streams[3], true, 0, sizeof(cl_float)*num_elements, (void *)output_ptr, 0, NULL, NULL );
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if (err != CL_SUCCESS)
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{
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log_error("clEnqueueReadBuffer failed\n");
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return -1;
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}
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switch (i)
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{
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case 0:
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max_err = verify_smoothstep(input_ptr[0], input_ptr[1], input_ptr[2], output_ptr, n_elems, 1);
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break;
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case 1:
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max_err = verify_smoothstep(input_ptr[0], input_ptr[1], input_ptr[2], output_ptr, n_elems, 2);
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break;
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case 2:
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max_err = verify_smoothstep(input_ptr[0], input_ptr[1], input_ptr[2], output_ptr, n_elems, 4);
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break;
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}
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if (max_err > MAX_ERR)
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{
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log_error("%s test failed %g max err\n", fn_names[i], max_err);
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err = -1;
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}
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else
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{
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log_info("%s test passed %g max err\n", fn_names[i], max_err);
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err = 0;
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}
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if (err)
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break;
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}
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clReleaseMemObject(streams[0]);
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clReleaseMemObject(streams[1]);
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clReleaseMemObject(streams[2]);
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clReleaseMemObject(streams[3]);
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for (i=0; i<3; i++)
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{
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clReleaseKernel(kernel[i]);
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clReleaseProgram(program[i]);
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}
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free(input_ptr[0]);
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free(input_ptr[1]);
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free(input_ptr[2]);
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free(output_ptr);
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return err;
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}
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