blob: da36e6a0b212875aa8f6936f12c73dc0e3878612 (
plain)
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
|
// Copyright 2022 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "VideoBackends/Metal/MTLBoundingBox.h"
#include "VideoBackends/Metal/MTLObjectCache.h"
#include "VideoBackends/Metal/MTLStateTracker.h"
static constexpr size_t BUFFER_SIZE = sizeof(BBoxType) * NUM_BBOX_VALUES;
Metal::BoundingBox::~BoundingBox()
{
if (g_state_tracker)
g_state_tracker->SetBBoxBuffer(nullptr, nullptr, nullptr);
}
bool Metal::BoundingBox::Initialize()
{
const MTLResourceOptions gpu_options =
MTLResourceStorageModeShared | MTLResourceHazardTrackingModeUntracked;
const id<MTLDevice> dev = g_device;
m_upload_fence = MRCTransfer([dev newFence]);
[m_upload_fence setLabel:@"BBox Upload Fence"];
m_download_fence = MRCTransfer([dev newFence]);
[m_download_fence setLabel:@"BBox Download Fence"];
m_gpu_buffer = MRCTransfer([dev newBufferWithLength:BUFFER_SIZE options:gpu_options]);
[m_gpu_buffer setLabel:@"BBox Buffer"];
m_cpu_buffer_ptr = static_cast<BBoxType*>([m_gpu_buffer contents]);
g_state_tracker->SetBBoxBuffer(m_gpu_buffer, m_upload_fence, m_download_fence);
return true;
}
std::vector<BBoxType> Metal::BoundingBox::Read(u32 index, u32 length)
{
@autoreleasepool
{
g_state_tracker->EndRenderPass();
g_state_tracker->FlushEncoders();
g_state_tracker->NotifyOfCPUGPUSync();
g_state_tracker->WaitForFlushedEncoders();
return std::vector<BBoxType>(m_cpu_buffer_ptr + index, m_cpu_buffer_ptr + index + length);
}
}
void Metal::BoundingBox::Write(u32 index, std::span<const BBoxType> values)
{
const u32 size = values.size() * sizeof(BBoxType);
if (!g_state_tracker->HasUnflushedData() && !g_state_tracker->GPUBusy())
{
// We can just write directly to the buffer!
memcpy(m_cpu_buffer_ptr + index, values.data(), size);
}
else
{
@autoreleasepool
{
StateTracker::Map map = g_state_tracker->AllocateForTextureUpload(size);
memcpy(map.cpu_buffer, values.data(), size);
g_state_tracker->EndRenderPass();
id<MTLBlitCommandEncoder> upload = [g_state_tracker->GetRenderCmdBuf() blitCommandEncoder];
[upload setLabel:@"BBox Upload"];
[upload waitForFence:m_download_fence];
[upload copyFromBuffer:map.gpu_buffer
sourceOffset:map.gpu_offset
toBuffer:m_gpu_buffer
destinationOffset:index * sizeof(BBoxType)
size:size];
[upload updateFence:m_upload_fence];
[upload endEncoding];
}
}
}
|
