1 /*-------------------------------------------------------------------------
2 * Vulkan Conformance Tests
3 * ------------------------
4 *
5 * Copyright (c) 2015 The Khronos Group Inc.
6 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Copyright (c) 2015 Google Inc.
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 *
21 *//*--------------------------------------------------------------------*/
22
23 #include "vktApiComputeInstanceResultBuffer.hpp"
24 #include "vktApiBufferComputeInstance.hpp"
25 #include "vkRefUtil.hpp"
26
27 namespace vkt
28 {
29 namespace api
30 {
31
32 using namespace vk;
33
ComputeInstanceResultBuffer(const DeviceInterface & vki,VkDevice device,Allocator & allocator,float initValue)34 ComputeInstanceResultBuffer::ComputeInstanceResultBuffer (const DeviceInterface &vki,
35 VkDevice device,
36 Allocator &allocator,
37 float initValue)
38 : m_vki(vki),
39 m_device(device),
40 m_bufferMem(DE_NULL),
41 m_buffer(createResultBuffer(m_vki, m_device, allocator, &m_bufferMem, initValue)),
42 m_bufferBarrier(createResultBufferBarrier(*m_buffer))
43 {
44 }
45
readResultContentsTo(tcu::Vec4 (* results)[4]) const46 void ComputeInstanceResultBuffer::readResultContentsTo(tcu::Vec4 (*results)[4]) const
47 {
48 invalidateAlloc(m_vki, m_device, *m_bufferMem);
49 deMemcpy(*results, m_bufferMem->getHostPtr(), sizeof(*results));
50 }
51
readResultContentsTo(deUint32 * result) const52 void ComputeInstanceResultBuffer::readResultContentsTo(deUint32 *result) const
53 {
54 invalidateAlloc(m_vki, m_device, *m_bufferMem);
55 deMemcpy(result, m_bufferMem->getHostPtr(), sizeof(*result));
56 }
57
createResultBuffer(const DeviceInterface & vki,VkDevice device,Allocator & allocator,de::MovePtr<Allocation> * outAllocation,float initValue)58 Move<VkBuffer> ComputeInstanceResultBuffer::createResultBuffer(const DeviceInterface &vki,
59 VkDevice device,
60 Allocator &allocator,
61 de::MovePtr<Allocation> *outAllocation,
62 float initValue)
63 {
64 const VkBufferCreateInfo createInfo =
65 {
66 VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
67 DE_NULL,
68 0u, // flags
69 (VkDeviceSize) DATA_SIZE, // size
70 VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, // usage
71 VK_SHARING_MODE_EXCLUSIVE, // sharingMode
72 0u, // queueFamilyCount
73 DE_NULL, // pQueueFamilyIndices
74 };
75
76 Move<VkBuffer> buffer(createBuffer(vki, device, &createInfo));
77
78 const VkMemoryRequirements requirements = getBufferMemoryRequirements(vki, device, *buffer);
79 de::MovePtr<Allocation> allocation = allocator.allocate(requirements, MemoryRequirement::HostVisible);
80
81 VK_CHECK(vki.bindBufferMemory(device, *buffer, allocation->getMemory(), allocation->getOffset()));
82
83 const float clearValue = initValue;
84 void* mapPtr = allocation->getHostPtr();
85
86 for (size_t offset = 0; offset < DATA_SIZE; offset += sizeof(float))
87 deMemcpy(((deUint8 *) mapPtr) + offset, &clearValue, sizeof(float));
88
89 flushAlloc(vki, device, *allocation);
90
91 *outAllocation = allocation;
92 return buffer;
93 }
94
createResultBufferBarrier(VkBuffer buffer)95 VkBufferMemoryBarrier ComputeInstanceResultBuffer::createResultBufferBarrier(VkBuffer buffer)
96 {
97 const VkBufferMemoryBarrier bufferBarrier =
98 {
99 VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
100 DE_NULL,
101 VK_ACCESS_SHADER_WRITE_BIT, // srcAccessMask
102 VK_ACCESS_HOST_READ_BIT, // dstAccessMask
103 VK_QUEUE_FAMILY_IGNORED, // srcQueueFamilyIndex
104 VK_QUEUE_FAMILY_IGNORED, // destQueueFamilyIndex
105 buffer, // buffer
106 (VkDeviceSize) 0u, // offset
107 DATA_SIZE, // size
108 };
109
110 return bufferBarrier;
111 }
112
113 } // api
114 } // vkt
115