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VideoBackends: Add Metal renderer

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This commit is contained in:
TellowKrinkle
2022-06-01 04:58:13 -05:00
parent b0b5faa793
commit 716c0980d7
42 changed files with 3714 additions and 47 deletions
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97
Source/Core/VideoBackends/Metal/MTLBoundingBox.mm Normal file
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// 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_storage_mode =
g_features.unified_memory ? MTLResourceStorageModeShared : MTLResourceStorageModePrivate;
const MTLResourceOptions gpu_options = gpu_storage_mode | 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]);
if (g_features.unified_memory)
{
[m_gpu_buffer setLabel:@"BBox Buffer"];
m_cpu_buffer_ptr = static_cast<BBoxType*>([m_gpu_buffer contents]);
}
else
{
m_cpu_buffer = MRCTransfer([dev newBufferWithLength:BUFFER_SIZE
options:MTLResourceStorageModeShared]);
m_cpu_buffer_ptr = static_cast<BBoxType*>([m_cpu_buffer contents]);
[m_gpu_buffer setLabel:@"BBox GPU Buffer"];
[m_cpu_buffer setLabel:@"BBox CPU Buffer"];
}
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();
if (!g_features.unified_memory)
{
id<MTLBlitCommandEncoder> download = [g_state_tracker->GetRenderCmdBuf() blitCommandEncoder];
[download setLabel:@"BBox Download"];
[download waitForFence:m_download_fence];
[download copyFromBuffer:m_gpu_buffer
sourceOffset:0
toBuffer:m_cpu_buffer
destinationOffset:0
size:BUFFER_SIZE];
[download endEncoding];
}
g_state_tracker->FlushEncoders();
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, const std::vector<BBoxType>& values)
{
const u32 size = values.size() * sizeof(BBoxType);
if (g_features.unified_memory && !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->Allocate(StateTracker::UploadBuffer::Other, size,
StateTracker::AlignMask::Other);
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];
}
}
}