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using System;
using Avalonia;
using Avalonia.Skia;
using Ryujinx.Ava.Ui.Vulkan;
using Ryujinx.Ava.Ui.Vulkan.Surfaces;
using Silk.NET.Vulkan;
using SkiaSharp;
namespace Ryujinx.Ava.Ui.Backend.Vulkan
{
internal class VulkanRenderTarget : ISkiaGpuRenderTarget
{
public GRContext GrContext { get; private set; }
private readonly VulkanSurfaceRenderTarget _surface;
private readonly VulkanPlatformInterface _vulkanPlatformInterface;
private readonly IVulkanPlatformSurface _vulkanPlatformSurface;
private GRVkBackendContext _grVkBackend;
public VulkanRenderTarget(VulkanPlatformInterface vulkanPlatformInterface, IVulkanPlatformSurface vulkanPlatformSurface)
{
_surface = vulkanPlatformInterface.CreateRenderTarget(vulkanPlatformSurface);
_vulkanPlatformInterface = vulkanPlatformInterface;
_vulkanPlatformSurface = vulkanPlatformSurface;
Initialize();
}
private void Initialize()
{
GRVkGetProcedureAddressDelegate getProc = GetVulkanProcAddress;
_grVkBackend = new GRVkBackendContext()
{
VkInstance = _surface.Device.Handle,
VkPhysicalDevice = _vulkanPlatformInterface.PhysicalDevice.Handle,
VkDevice = _surface.Device.Handle,
VkQueue = _surface.Device.Queue.Handle,
GraphicsQueueIndex = _vulkanPlatformInterface.PhysicalDevice.QueueFamilyIndex,
GetProcedureAddress = getProc
};
GrContext = GRContext.CreateVulkan(_grVkBackend);
var gpu = AvaloniaLocator.Current.GetService<VulkanSkiaGpu>();
if (gpu.MaxResourceBytes.HasValue)
{
GrContext.SetResourceCacheLimit(gpu.MaxResourceBytes.Value);
}
}
private IntPtr GetVulkanProcAddress(string name, IntPtr instanceHandle, IntPtr deviceHandle)
{
IntPtr addr;
if (deviceHandle != IntPtr.Zero)
{
addr = _vulkanPlatformInterface.Api.GetDeviceProcAddr(new Device(deviceHandle), name);
if (addr != IntPtr.Zero)
{
return addr;
}
addr = _vulkanPlatformInterface.Api.GetDeviceProcAddr(new Device(_surface.Device.Handle), name);
if (addr != IntPtr.Zero)
{
return addr;
}
}
addr = _vulkanPlatformInterface.Api.GetInstanceProcAddr(new Instance(_vulkanPlatformInterface.Instance.Handle), name);
if (addr == IntPtr.Zero)
{
addr = _vulkanPlatformInterface.Api.GetInstanceProcAddr(new Instance(instanceHandle), name);
}
return addr;
}
public void Dispose()
{
_grVkBackend.Dispose();
GrContext.Dispose();
_surface.Dispose();
}
public ISkiaGpuRenderSession BeginRenderingSession()
{
var session = _surface.BeginDraw(_vulkanPlatformSurface.Scaling);
bool success = false;
try
{
var disp = session.Display;
var api = session.Api;
var size = session.Size;
var scaling = session.Scaling;
if (size.Width <= 0 || size.Height <= 0 || scaling < 0)
{
size = new Avalonia.PixelSize(1, 1);
scaling = 1;
}
lock (GrContext)
{
GrContext.ResetContext();
var image = _surface.GetImage();
var imageInfo = new GRVkImageInfo()
{
CurrentQueueFamily = disp.QueueFamilyIndex,
Format = (uint)image.Format,
Image = image.Handle,
ImageLayout = (uint)image.CurrentLayout,
ImageTiling = (uint)image.Tiling,
ImageUsageFlags = _surface.UsageFlags,
LevelCount = _surface.MipLevels,
SampleCount = 1,
Protected = false,
Alloc = new GRVkAlloc()
{
Memory = image.MemoryHandle,
Flags = 0,
Offset = 0,
Size = _surface.MemorySize
}
};
var renderTarget =
new GRBackendRenderTarget((int)size.Width, (int)size.Height, 1,
imageInfo);
var surface = SKSurface.Create(GrContext, renderTarget,
GRSurfaceOrigin.TopLeft,
_surface.IsRgba ? SKColorType.Rgba8888 : SKColorType.Bgra8888, SKColorSpace.CreateSrgb());
if (surface == null)
{
throw new InvalidOperationException(
"Surface can't be created with the provided render target");
}
success = true;
return new VulkanGpuSession(GrContext, renderTarget, surface, session);
}
}
finally
{
if (!success)
{
session.Dispose();
}
}
}
public bool IsCorrupted { get; }
internal class VulkanGpuSession : ISkiaGpuRenderSession
{
private readonly GRBackendRenderTarget _backendRenderTarget;
private readonly VulkanSurfaceRenderingSession _vulkanSession;
public VulkanGpuSession(GRContext grContext,
GRBackendRenderTarget backendRenderTarget,
SKSurface surface,
VulkanSurfaceRenderingSession vulkanSession)
{
GrContext = grContext;
_backendRenderTarget = backendRenderTarget;
SkSurface = surface;
_vulkanSession = vulkanSession;
SurfaceOrigin = GRSurfaceOrigin.TopLeft;
}
public void Dispose()
{
lock (_vulkanSession.Display.Lock)
{
SkSurface.Canvas.Flush();
SkSurface.Dispose();
_backendRenderTarget.Dispose();
GrContext.Flush();
_vulkanSession.Dispose();
}
}
public GRContext GrContext { get; }
public SKSurface SkSurface { get; }
public double ScaleFactor => _vulkanSession.Scaling;
public GRSurfaceOrigin SurfaceOrigin { get; }
}
}
}
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