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// Copyright 2011 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Core/HW/Memmap.h"
#include "VideoBackends/D3D/D3DBase.h"
#include "VideoBackends/D3D/D3DShader.h"
#include "VideoBackends/D3D/D3DState.h"
#include "VideoBackends/D3D/D3DUtil.h"
#include "VideoBackends/D3D/FramebufferManager.h"
#include "VideoBackends/D3D/PSTextureEncoder.h"
#include "VideoBackends/D3D/Render.h"
#include "VideoBackends/D3D/TextureCache.h"
#include "VideoBackends/D3D/VertexShaderCache.h"
#include "VideoCommon/TextureConversionShader.h"
namespace DX11
{
struct EFBEncodeParams
{
DWORD SrcLeft;
DWORD SrcTop;
DWORD DestWidth;
DWORD ScaleFactor;
};
PSTextureEncoder::PSTextureEncoder()
: m_ready(false), m_out(nullptr), m_outRTV(nullptr), m_outStage(nullptr),
m_encodeParams(nullptr)
{
}
void PSTextureEncoder::Init()
{
m_ready = false;
HRESULT hr;
// Create output texture RGBA format
D3D11_TEXTURE2D_DESC t2dd = CD3D11_TEXTURE2D_DESC(
DXGI_FORMAT_B8G8R8A8_UNORM,
EFB_WIDTH * 4, EFB_HEIGHT / 4, 1, 1, D3D11_BIND_RENDER_TARGET);
hr = D3D::device->CreateTexture2D(&t2dd, nullptr, &m_out);
CHECK(SUCCEEDED(hr), "create efb encode output texture");
D3D::SetDebugObjectName(m_out, "efb encoder output texture");
// Create output render target view
D3D11_RENDER_TARGET_VIEW_DESC rtvd = CD3D11_RENDER_TARGET_VIEW_DESC(m_out,
D3D11_RTV_DIMENSION_TEXTURE2D, DXGI_FORMAT_B8G8R8A8_UNORM);
hr = D3D::device->CreateRenderTargetView(m_out, &rtvd, &m_outRTV);
CHECK(SUCCEEDED(hr), "create efb encode output render target view");
D3D::SetDebugObjectName(m_outRTV, "efb encoder output rtv");
// Create output staging buffer
t2dd.Usage = D3D11_USAGE_STAGING;
t2dd.BindFlags = 0;
t2dd.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
hr = D3D::device->CreateTexture2D(&t2dd, nullptr, &m_outStage);
CHECK(SUCCEEDED(hr), "create efb encode output staging buffer");
D3D::SetDebugObjectName(m_outStage, "efb encoder output staging buffer");
// Create constant buffer for uploading data to shaders
D3D11_BUFFER_DESC bd = CD3D11_BUFFER_DESC(sizeof(EFBEncodeParams),
D3D11_BIND_CONSTANT_BUFFER);
hr = D3D::device->CreateBuffer(&bd, nullptr, &m_encodeParams);
CHECK(SUCCEEDED(hr), "create efb encode params buffer");
D3D::SetDebugObjectName(m_encodeParams, "efb encoder params buffer");
m_ready = true;
}
void PSTextureEncoder::Shutdown()
{
m_ready = false;
for (auto& it : m_staticShaders)
{
SAFE_RELEASE(it.second);
}
m_staticShaders.clear();
SAFE_RELEASE(m_encodeParams);
SAFE_RELEASE(m_outStage);
SAFE_RELEASE(m_outRTV);
SAFE_RELEASE(m_out);
}
void PSTextureEncoder::Encode(u8* dst, u32 format, u32 native_width, u32 bytes_per_row, u32 num_blocks_y, u32 memory_stride,
PEControl::PixelFormat srcFormat, const EFBRectangle& srcRect,
bool isIntensity, bool scaleByHalf)
{
if (!m_ready) // Make sure we initialized OK
return;
HRESULT hr;
// Resolve MSAA targets before copying.
ID3D11ShaderResourceView* pEFB = (srcFormat == PEControl::Z24) ?
FramebufferManager::GetResolvedEFBDepthTexture()->GetSRV() :
// FIXME: Instead of resolving EFB, it would be better to pick out a
// single sample from each pixel. The game may break if it isn't
// expecting the blurred edges around multisampled shapes.
FramebufferManager::GetResolvedEFBColorTexture()->GetSRV();
// Reset API
g_renderer->ResetAPIState();
// Set up all the state for EFB encoding
{
const u32 words_per_row = bytes_per_row / sizeof(u32);
D3D11_VIEWPORT vp = CD3D11_VIEWPORT(0.f, 0.f, FLOAT(words_per_row), FLOAT(num_blocks_y));
D3D::context->RSSetViewports(1, &vp);
constexpr EFBRectangle fullSrcRect(0, 0, EFB_WIDTH, EFB_HEIGHT);
TargetRectangle targetRect = g_renderer->ConvertEFBRectangle(fullSrcRect);
D3D::context->OMSetRenderTargets(1, &m_outRTV, nullptr);
EFBEncodeParams params;
params.SrcLeft = srcRect.left;
params.SrcTop = srcRect.top;
params.DestWidth = native_width;
params.ScaleFactor = scaleByHalf ? 2 : 1;
D3D::context->UpdateSubresource(m_encodeParams, 0, nullptr, ¶ms, 0, 0);
D3D::stateman->SetPixelConstants(m_encodeParams);
// Use linear filtering if (bScaleByHalf), use point filtering otherwise
if (scaleByHalf)
D3D::SetLinearCopySampler();
else
D3D::SetPointCopySampler();
D3D::drawShadedTexQuad(pEFB,
targetRect.AsRECT(),
Renderer::GetTargetWidth(),
Renderer::GetTargetHeight(),
SetStaticShader(format, srcFormat, isIntensity, scaleByHalf),
VertexShaderCache::GetSimpleVertexShader(),
VertexShaderCache::GetSimpleInputLayout());
// Copy to staging buffer
D3D11_BOX srcBox = CD3D11_BOX(0, 0, 0, words_per_row, num_blocks_y, 1);
D3D::context->CopySubresourceRegion(m_outStage, 0, 0, 0, 0, m_out, 0, &srcBox);
// Transfer staging buffer to GameCube/Wii RAM
D3D11_MAPPED_SUBRESOURCE map = { 0 };
hr = D3D::context->Map(m_outStage, 0, D3D11_MAP_READ, 0, &map);
CHECK(SUCCEEDED(hr), "map staging buffer (0x%x)", hr);
u8* src = (u8*)map.pData;
u32 readStride = std::min(bytes_per_row, map.RowPitch);
for (unsigned int y = 0; y < num_blocks_y; ++y)
{
memcpy(dst, src, readStride);
dst += memory_stride;
src += map.RowPitch;
}
D3D::context->Unmap(m_outStage, 0);
}
// Restore API
g_renderer->RestoreAPIState();
D3D::context->OMSetRenderTargets(1,
&FramebufferManager::GetEFBColorTexture()->GetRTV(),
FramebufferManager::GetEFBDepthTexture()->GetDSV());
}
ID3D11PixelShader* PSTextureEncoder::SetStaticShader(unsigned int dstFormat, PEControl::PixelFormat srcFormat,
bool isIntensity, bool scaleByHalf)
{
size_t fetchNum = static_cast<size_t>(srcFormat);
size_t scaledFetchNum = scaleByHalf ? 1 : 0;
size_t intensityNum = isIntensity ? 1 : 0;
size_t generatorNum = dstFormat;
ComboKey key = MakeComboKey(dstFormat, srcFormat, isIntensity, scaleByHalf);
ComboMap::iterator it = m_staticShaders.find(key);
if (it == m_staticShaders.end())
{
INFO_LOG(VIDEO, "Compiling efb encoding shader for dstFormat 0x%X, srcFormat %d, isIntensity %d, scaleByHalf %d",
dstFormat, static_cast<int>(srcFormat), isIntensity ? 1 : 0, scaleByHalf ? 1 : 0);
u32 format = dstFormat;
if (srcFormat == PEControl::Z24)
{
format |= _GX_TF_ZTF;
if (dstFormat == 11)
format = GX_TF_Z16;
else if (format < GX_TF_Z8 || format > GX_TF_Z24X8)
format |= _GX_TF_CTF;
}
else
{
if (dstFormat > GX_TF_RGBA8 || (dstFormat < GX_TF_RGB565 && !isIntensity))
format |= _GX_TF_CTF;
}
D3DBlob* bytecode = nullptr;
const char* shader = TextureConversionShader::GenerateEncodingShader(format, API_D3D);
if (!D3D::CompilePixelShader(shader, &bytecode))
{
WARN_LOG(VIDEO, "EFB encoder shader for dstFormat 0x%X, srcFormat %d, isIntensity %d, scaleByHalf %d failed to compile",
dstFormat, static_cast<int>(srcFormat), isIntensity ? 1 : 0, scaleByHalf ? 1 : 0);
m_staticShaders[key] = nullptr;
return nullptr;
}
ID3D11PixelShader* newShader;
HRESULT hr = D3D::device->CreatePixelShader(bytecode->Data(), bytecode->Size(), nullptr, &newShader);
CHECK(SUCCEEDED(hr), "create efb encoder pixel shader");
char debugName[255] = {};
sprintf_s(debugName, "efb encoder pixel shader (dst:%d, src:%d, intensity:%d, scale:%d)",
dstFormat, srcFormat, isIntensity, scaleByHalf);
D3D::SetDebugObjectName(newShader, debugName);
it = m_staticShaders.emplace(key, newShader).first;
bytecode->Release();
}
return it->second;
}
}
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