private void TextureCopy(NvGpuVmm Vmm, NvGpuPBEntry PBEntry)
{
CopyOperation Operation = (CopyOperation)ReadRegister(NvGpuEngine2dReg.CopyOperation);
bool SrcLinear = ReadRegister(NvGpuEngine2dReg.SrcLinear) != 0;
int SrcWidth = ReadRegister(NvGpuEngine2dReg.SrcWidth);
int SrcHeight = ReadRegister(NvGpuEngine2dReg.SrcHeight);
bool DstLinear = ReadRegister(NvGpuEngine2dReg.DstLinear) != 0;
int DstWidth = ReadRegister(NvGpuEngine2dReg.DstWidth);
int DstHeight = ReadRegister(NvGpuEngine2dReg.DstHeight);
int DstPitch = ReadRegister(NvGpuEngine2dReg.DstPitch);
int DstBlkDim = ReadRegister(NvGpuEngine2dReg.DstBlockDimensions);
TextureSwizzle DstSwizzle = DstLinear
? TextureSwizzle.Pitch
: TextureSwizzle.BlockLinear;
int DstBlockHeight = 1 << ((DstBlkDim >> 4) & 0xf);
long Tag = Vmm.GetPhysicalAddress(MakeInt64From2xInt32(NvGpuEngine2dReg.SrcAddress));
long SrcAddress = MakeInt64From2xInt32(NvGpuEngine2dReg.SrcAddress);
long DstAddress = MakeInt64From2xInt32(NvGpuEngine2dReg.DstAddress);
bool IsFbTexture = Gpu.Engine3d.IsFrameBufferPosition(Tag);
if (IsFbTexture && DstLinear)
{
DstSwizzle = TextureSwizzle.BlockLinear;
}
Texture DstTexture = new Texture(
DstAddress,
DstWidth,
DstHeight,
DstBlockHeight,
DstBlockHeight,
DstSwizzle,
GalTextureFormat.A8B8G8R8);
if (IsFbTexture)
{
Gpu.Renderer.GetFrameBufferData(Tag, (byte[] Buffer) =>
{
CopyTexture(Vmm, DstTexture, Buffer);
});
}
else
{
long Size = SrcWidth * SrcHeight * 4;
byte[] Buffer = Vmm.ReadBytes(SrcAddress, Size);
CopyTexture(Vmm, DstTexture, Buffer);
}
}
private void SetFrameBuffer(NvGpuVmm Vmm, int FbIndex)
{
long VA = MakeInt64From2xInt32(NvGpuEngine3dReg.FrameBufferNAddress + FbIndex * 0x10);
long PA = Vmm.GetPhysicalAddress(VA);
FrameBuffers.Add(PA);
int Width = ReadRegister(NvGpuEngine3dReg.FrameBufferNWidth + FbIndex * 0x10);
int Height = ReadRegister(NvGpuEngine3dReg.FrameBufferNHeight + FbIndex * 0x10);
//Note: Using the Width/Height results seems to give incorrect results.
//Maybe the size of all frame buffers is hardcoded to screen size? This seems unlikely.
Gpu.Renderer.CreateFrameBuffer(PA, 1280, 720);
Gpu.Renderer.BindFrameBuffer(PA);
}
private void UploadTexture(NvGpuVmm Vmm, long BasePosition, int TexIndex, int HndIndex)
{
long Position = BasePosition + HndIndex * 4;
int TextureHandle = Vmm.ReadInt32(Position);
int TicIndex = (TextureHandle >> 0) & 0xfffff;
int TscIndex = (TextureHandle >> 20) & 0xfff;
long TicPosition = MakeInt64From2xInt32(NvGpuEngine3dReg.TexHeaderPoolOffset);
long TscPosition = MakeInt64From2xInt32(NvGpuEngine3dReg.TexSamplerPoolOffset);
TicPosition += TicIndex * 0x20;
TscPosition += TscIndex * 0x20;
GalTextureSampler Sampler = TextureFactory.MakeSampler(Gpu, Vmm, TscPosition);
long TextureAddress = Vmm.ReadInt64(TicPosition + 4) & 0xffffffffffff;
TextureAddress = Vmm.GetPhysicalAddress(TextureAddress);
if (IsFrameBufferPosition(TextureAddress))
{
//This texture is a frame buffer texture,
//we shouldn't read anything from memory and bind
//the frame buffer texture instead, since we're not
//really writing anything to memory.
Gpu.Renderer.BindFrameBufferTexture(TextureAddress, TexIndex, Sampler);
}
else
{
GalTexture Texture = TextureFactory.MakeTexture(Gpu, Vmm, TicPosition);
Gpu.Renderer.SetTextureAndSampler(TexIndex, Texture, Sampler);
Gpu.Renderer.BindTexture(TexIndex);
}
}
