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//
// Copyright (c) 2017 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include "procs.h"
#include "harness/clImageHelper.h"
static const char* rw_kernel_code =
"kernel void test_rw_images(read_write image2d_t src_image) {\n"
" int tid_x = get_global_id(0);\n"
" int tid_y = get_global_id(1);\n"
"\n"
" int2 coords = (int2)(tid_x, tid_y);\n"
"\n"
" uint4 src_val = read_imageui(src_image, coords);\n"
" src_val += 3;\n"
"\n"
" // required to ensure that following read from image at\n"
" // location coord returns the latest color value.\n"
" atomic_work_item_fence(CLK_IMAGE_MEM_FENCE,\n"
" memory_order_acq_rel,\n"
" memory_scope_work_item);\n"
"\n"
" write_imageui(src_image, coords, src_val);\n"
"}\n";
int test_rw_image_access_qualifier(cl_device_id device_id, cl_context context, cl_command_queue commands, int num_elements)
{
// This test should be skipped if images are not supported.
if (checkForImageSupport(device_id))
{
return TEST_SKIPPED_ITSELF;
}
// Support for read-write image arguments is required for an
// or 2.X device if the device supports images. In OpenCL-3.0
// read-write images are optional. This test is already being skipped
// for 1.X devices.
if (get_device_cl_version(device_id) >= Version(3, 0))
{
cl_uint are_rw_images_supported{};
test_error(
clGetDeviceInfo(device_id, CL_DEVICE_MAX_READ_WRITE_IMAGE_ARGS,
sizeof(are_rw_images_supported),
&are_rw_images_supported, nullptr),
"clGetDeviceInfo failed for CL_DEVICE_MAX_READ_IMAGE_ARGS\n");
if (0 == are_rw_images_supported)
{
return TEST_SKIPPED_ITSELF;
}
}
unsigned int i;
unsigned int size_x;
unsigned int size_y;
unsigned int size;
cl_int err;
cl_program program;
cl_kernel kernel;
cl_mem_flags flags;
cl_image_format format;
cl_mem src_image;
unsigned int *input;
unsigned int *output;
/* Create test input */
size_x = 4;
size_y = 4;
size = size_x * size_y * 4;
input = (unsigned int *)malloc(size*sizeof(unsigned int));
output = (unsigned int *)malloc(size*sizeof(unsigned int));
if (!input && !output) {
log_error("Error: memory allocation failed\n");
return -1;
}
MTdata mtData = init_genrand(gRandomSeed);
/* Fill input array with random values */
for (i = 0; i < size; i++) {
input[i] = genrand_int32(mtData);
}
free_mtdata(mtData);
mtData = NULL;
/* Zero out output array */
for (i = 0; i < size; i++) {
output[i] = 0.0f;
}
/* Build the program executable */
err = create_single_kernel_helper(context, &program, &kernel, 1,
&rw_kernel_code, "test_rw_images");
if (err != CL_SUCCESS || !program) {
log_error("Error: clCreateProgramWithSource failed\n");
return err;
}
/* Create arrays for input and output data */
format.image_channel_order = CL_RGBA;
format.image_channel_data_type = CL_UNSIGNED_INT32;
/* Create input image */
flags = CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR;
src_image = create_image_2d(context, flags, &format,
size_x, size_y, 0,
(void *)input, &err);
if (err != CL_SUCCESS || !src_image) {
log_error("Error: clCreateImage2D failed\n");
return err;
}
/* Set kernel arguments */
err = clSetKernelArg(kernel, 0, sizeof(src_image), &src_image);
if (err != CL_SUCCESS) {
log_error("Error: clSetKernelArg failed\n");
return err;
}
/* Set kernel execution parameters */
int dim_count = 2;
size_t global_dim[2];
size_t local_dim[2];
global_dim[0] = size_x;
global_dim[1] = size_y;
local_dim[0] = 1;
local_dim[1] = 1;
/* Execute kernel */
err = CL_SUCCESS;
unsigned int num_iter = 1;
for(i = 0; i < num_iter; i++) {
err |= clEnqueueNDRangeKernel(commands, kernel, dim_count,
NULL, global_dim, local_dim,
0, NULL, NULL);
}
/* Read back the results from the device to verify the output */
const size_t origin[3] = {0, 0, 0};
const size_t region[3] = {size_x, size_y, 1};
err |= clEnqueueReadImage(commands, src_image, CL_TRUE, origin, region, 0, 0,
output, 0, NULL, NULL);
if (err != CL_SUCCESS) {
log_error("Error: clEnqueueReadBuffer failed\n");
return err;
}
/* Verify the correctness of kernel result */
err = 0;
for (i = 0; i < size; i++) {
if (output[i] != (input[i] + 3)) {
log_error("Error: mismatch at index %d\n", i);
err++;
break;
}
}
/* Release programs, kernel, contect, and memory objects */
clReleaseMemObject(src_image);
clReleaseProgram(program);
clReleaseKernel(kernel);
/* Deallocate arrays */
free(input);
free(output);
return err;
}
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