1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
#include <string.h>
#include "utest_helper.hpp"
#include <malloc.h>
#include <cstring>
static void image_from_buffer(void)
{
size_t param_value_size;
std::string extensionStr;
OCL_CALL (clGetPlatformInfo, platform, CL_PLATFORM_EXTENSIONS, 0, 0, ¶m_value_size);
std::vector<char> param_value(param_value_size);
OCL_CALL (clGetPlatformInfo, platform, CL_PLATFORM_EXTENSIONS, param_value_size, param_value.empty() ? NULL : ¶m_value.front(), ¶m_value_size);
if (!param_value.empty())
extensionStr = std::string(¶m_value.front(), param_value_size-1);
if (!std::strstr(extensionStr.c_str(), "cl_khr_image2d_from_buffer")) {
return;
}
size_t base_address_alignment = 0;
OCL_CALL (clGetDeviceInfo, device, CL_DEVICE_IMAGE_BASE_ADDRESS_ALIGNMENT, sizeof(base_address_alignment), &base_address_alignment, NULL);
const size_t w = 512;
const size_t h = 512;
cl_image_format format;
cl_image_desc desc;
int error;
memset(&desc, 0x0, sizeof(cl_image_desc));
memset(&format, 0x0, sizeof(cl_image_format));
// Setup kernel and images
size_t buffer_sz = sizeof(uint32_t) * w * h;
//buf_data[0] = (uint32_t*) malloc(buffer_sz);
buf_data[0] = (uint32_t*)memalign(base_address_alignment, buffer_sz);
for (uint32_t j = 0; j < h; ++j)
for (uint32_t i = 0; i < w; i++)
((uint32_t*)buf_data[0])[j * w + i] = j * w + i;
cl_mem buff = clCreateBuffer(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, buffer_sz, buf_data[0], &error);
OCL_ASSERT(error == CL_SUCCESS);
format.image_channel_order = CL_RGBA;
format.image_channel_data_type = CL_UNSIGNED_INT8;
desc.image_type = CL_MEM_OBJECT_IMAGE2D;
desc.image_width = w;
desc.image_height = h;
desc.image_row_pitch = w * sizeof(uint32_t);
desc.buffer = 0;
OCL_CREATE_IMAGE(buf[0], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[0]);
desc.buffer = buff;
OCL_CREATE_IMAGE(buf[1], 0, &format, &desc, NULL);
free(buf_data[0]);
buf_data[0] = NULL;
// Check result
OCL_MAP_BUFFER_GTT(0);
OCL_MAP_BUFFER_GTT(1);
for (uint32_t j = 0; j < h; ++j)
for (uint32_t i = 0; i < w; i++)
{
//printf("%d,%d\n", ((uint32_t*)buf_data[0])[j * w + i], ((uint32_t*)buf_data[1])[j * w + i]);
OCL_ASSERT(((uint32_t*)buf_data[0])[j * w + i] == ((uint32_t*)buf_data[1])[j * w + i]);
}
OCL_UNMAP_BUFFER_GTT(0);
OCL_UNMAP_BUFFER_GTT(1);
//spec didn't tell the sequence of release buffer of image. so release either buffer or image first is ok here.
//we follow the rule of destroy the bo at the last release, then the access of buffer after release image is legal
//and vice verse.
#if 1
clReleaseMemObject(buf[1]);
clReleaseMemObject(buff);
#else
clReleaseMemObject(buff);
clReleaseMemObject(buf[1]);
#endif
}
MAKE_UTEST_FROM_FUNCTION(image_from_buffer);
|