[d3d8] Implement Direct3D 8 Frontend

Co-authored-by: WinterSnowfall <[email protected]>

## Config Changes

Co-authored-by: Blisto91 <[email protected]>
Co-authored-by: simifor <[email protected]>

.github/workflows/test-build-windows.yml

@@ -32,6 +32,13 @@ jobs:
         Write-Output "VSDEVCMD=${installationPath}\Common7\Tools\VsDevCmd.bat" `
           | Out-File -FilePath "${Env:GITHUB_ENV}" -Append
 
+    - name: Download D3D8 SDK Headers
+      shell: pwsh
+      run: |
+        Invoke-WebRequest -URI https://raw.githubusercontent.com/NovaRain/DXSDK_Collection/master/DXSDK_Aug2007/Include/d3d8.h -OutFile include/d3d8.h
+        Invoke-WebRequest -URI https://raw.githubusercontent.com/NovaRain/DXSDK_Collection/master/DXSDK_Aug2007/Include/d3d8types.h -OutFile include/d3d8types.h
+        Invoke-WebRequest -URI https://raw.githubusercontent.com/NovaRain/DXSDK_Collection/master/DXSDK_Aug2007/Include/d3d8caps.h -OutFile include/d3d8caps.h
+
     - name: Build MSVC x86
       shell: pwsh
       run: |

LICENSE

@@ -1,5 +1,6 @@
                   Copyright (c) 2017 Philip Rebohle
                   Copyright (c) 2019 Joshua Ashton
+                  Copyright (c) 2023 Jeffrey Ellison
 
                           zlib/libpng license
 

README.md

@@ -1,6 +1,6 @@
 # DXVK
 
-A Vulkan-based translation layer for Direct3D 9/10/11 which allows running 3D applications on Linux using Wine.
+A Vulkan-based translation layer for Direct3D 8/9/10/11 which allows running 3D applications on Linux using Wine.
 
 For the current status of the project, please refer to the [project wiki](https://github.com/doitsujin/dxvk/wiki).
 

dxvk.conf

@@ -709,3 +709,29 @@
 # - True/False
 
 # d3d9.countLosableResources = True
+
+# Use NVIDIA Shadow Buffers
+# 
+# Vendor behavior for GeForce3 and GeForce4 cards that allows
+# sampling depth textures with non-normalized Z coordinates
+# and applies hardware shadow filtering.
+#
+# Supported values:
+# - True/False
+
+# d3d8.useShadowBuffers = False
+
+
+# MANAGED Buffer Placement
+# 
+# Remap some DEFAULT pool vertex and index buffers to the MANAGED pool to improve
+# performance by avoiding waiting for games that frequently lock (large) buffers.
+# 
+# This implicitly disables direct buffer mapping. Some applications may need this option
+# disabled for certain (smaller) buffers to keep from overwriting in-use buffer regions.
+#
+# Supported values:
+# - True/False
+# - Any non-negative integer - sets the minimum size in bytes for a buffer to be MANAGED
+
+# d3d8.managedBufferPlacement = True

meson_options.txt

@@ -1,4 +1,5 @@
 option('enable_dxgi',  type : 'boolean', value : true, description: 'Build DXGI')
+option('enable_d3d8',  type : 'boolean', value : true, description: 'Build D3D8')
 option('enable_d3d9',  type : 'boolean', value : true, description: 'Build D3D9')
 option('enable_d3d10', type : 'boolean', value : true, description: 'Build D3D10')
 option('enable_d3d11', type : 'boolean', value : true, description: 'Build D3D11')

src/d3d8/d3d8.def

@@ -0,0 +1,3 @@
+LIBRARY D3D8.DLL
+EXPORTS
+  Direct3DCreate8 @ 5

src/d3d8/d3d8.sym

@@ -0,0 +1,7 @@
+{
+  global:
+    Direct3DCreate8;
+
+  local:
+    *;
+};

src/d3d8/d3d8_batch.h

@@ -0,0 +1,239 @@
+#pragma once
+
+#include "d3d8_include.h"
+#include "d3d8_buffer.h"
+#include "d3d8_format.h"
+
+#include <vector>
+#include <cstdint>
+#include <climits>
+
+namespace dxvk {
+
+  inline constexpr size_t            D3DPT_COUNT   = size_t(D3DPT_TRIANGLEFAN) + 1;
+  inline constexpr D3DPRIMITIVETYPE  D3DPT_INVALID = D3DPRIMITIVETYPE(0);
+
+  // Vertex buffer that can handle many tiny locks while
+  // still maintaing the lock ordering of direct-mapped buffers.
+  class D3D8BatchBuffer final : public D3D8VertexBuffer {
+  public:
+    D3D8BatchBuffer(
+        D3D8Device*                         pDevice,
+        D3DPOOL                             Pool,
+        DWORD                               Usage,
+        UINT                                Length,
+        DWORD                               FVF)
+      : D3D8VertexBuffer(pDevice, nullptr, Pool, Usage)
+      , m_data(Length)
+      , m_fvf(FVF) {
+    }
+
+    HRESULT STDMETHODCALLTYPE Lock(
+            UINT   OffsetToLock,
+            UINT   SizeToLock,
+            BYTE** ppbData,
+            DWORD  Flags) {
+      *ppbData = m_data.data() + OffsetToLock;
+      return D3D_OK;
+    }
+
+    HRESULT STDMETHODCALLTYPE Unlock() {
+      return D3D_OK;
+    }
+
+    HRESULT STDMETHODCALLTYPE GetDesc(D3DVERTEXBUFFER_DESC* pDesc) {
+      pDesc->Format = D3DFMT_VERTEXDATA;
+      pDesc->Type   = D3DRTYPE_VERTEXBUFFER;
+      pDesc->Usage  = m_usage;
+      pDesc->Pool   = m_pool;
+      pDesc->Size   = m_data.size();
+      pDesc->FVF    = m_fvf;
+      return D3D_OK;
+    }
+
+    void STDMETHODCALLTYPE PreLoad() {
+    }
+
+    const void* GetPtr(UINT byteOffset = 0) const {
+      return m_data.data() + byteOffset;
+    }
+
+    UINT Size() const {
+      return m_data.size();
+    }
+
+  private:
+    std::vector<BYTE> m_data;
+    DWORD             m_fvf;
+  };
+
+
+  // Main handler for batching D3D8 draw calls.
+  class D3D8Batcher {
+
+    struct Batch {
+      D3DPRIMITIVETYPE PrimitiveType = D3DPT_INVALID;
+      std::vector<uint16_t> Indices;
+      UINT Offset = 0;
+      UINT MinVertex = UINT_MAX;
+      UINT MaxVertex = 0;
+      UINT PrimitiveCount = 0;
+      UINT DrawCallCount = 0;
+    };
+
+  public:
+    D3D8Batcher(D3D8Device* pDevice8, Com<d3d9::IDirect3DDevice9>&& pDevice9)
+      : m_device8(pDevice8)
+      , m_device(std::move(pDevice9)) {
+    }
+
+    inline D3D8BatchBuffer* CreateVertexBuffer(UINT Length, DWORD Usage, DWORD FVF, D3DPOOL Pool) {
+      return ref(new D3D8BatchBuffer(m_device8, Pool, Usage, Length, FVF));
+    }
+
+    inline void StateChange() {
+      if (likely(m_batches.empty()))
+        return;
+      for (auto& draw : m_batches) {
+
+        if (draw.PrimitiveType == D3DPT_INVALID)
+          continue;
+
+        for (auto& index : draw.Indices)
+          index -= draw.MinVertex;
+
+        m_device->DrawIndexedPrimitiveUP(
+          d3d9::D3DPRIMITIVETYPE(draw.PrimitiveType),
+          0,
+          draw.MaxVertex - draw.MinVertex,
+          draw.PrimitiveCount,
+          draw.Indices.data(),
+          d3d9::D3DFMT_INDEX16,
+          m_stream->GetPtr(draw.MinVertex * m_stride),
+          m_stride);
+
+        m_device->SetStreamSource(0, D3D8VertexBuffer::GetD3D9Nullable(m_stream), 0, m_stride);
+        m_device->SetIndices(D3D8IndexBuffer::GetD3D9Nullable(m_indices));
+
+        draw.PrimitiveType = D3DPRIMITIVETYPE(0);
+        draw.Offset = 0;
+        draw.MinVertex = UINT_MAX;
+        draw.MaxVertex = 0;
+        draw.PrimitiveCount = 0;
+        draw.DrawCallCount = 0;
+      }
+    }
+
+    inline void EndFrame() {
+      // Nothing to be done.
+    }
+
+    inline HRESULT DrawPrimitive(
+            D3DPRIMITIVETYPE PrimitiveType,
+            UINT             StartVertex,
+            UINT             PrimitiveCount) {
+
+      // None of this linestrip or fan malarkey
+      D3DPRIMITIVETYPE batchedPrimType = PrimitiveType;
+      switch (PrimitiveType) {
+        case D3DPT_LINESTRIP:     batchedPrimType = D3DPT_LINELIST; break;
+        case D3DPT_TRIANGLEFAN:   batchedPrimType = D3DPT_TRIANGLELIST; break;
+        default: break;
+      }
+
+      Batch* batch = &m_batches[size_t(batchedPrimType)];
+      batch->PrimitiveType = batchedPrimType;
+
+      //UINT vertices = GetVertexCount8(PrimitiveType, PrimitiveCount);
+
+      switch (PrimitiveType) {
+        case D3DPT_POINTLIST:
+          batch->Indices.resize(batch->Offset + PrimitiveCount);
+          for (UINT i = 0; i < PrimitiveCount; i++)
+            batch->Indices[batch->Offset++] = (StartVertex + i);
+          break;
+        case D3DPT_LINELIST:
+          batch->Indices.resize(batch->Offset + PrimitiveCount * 2);
+          for (UINT i = 0; i < PrimitiveCount; i++) {
+            batch->Indices[batch->Offset++] = (StartVertex + i * 2 + 0);
+            batch->Indices[batch->Offset++] = (StartVertex + i * 2 + 1);
+          }
+          break;
+        case D3DPT_LINESTRIP:
+          batch->Indices.resize(batch->Offset + PrimitiveCount * 2);
+          for (UINT i = 0; i < PrimitiveCount; i++) {
+            batch->Indices[batch->Offset++] = (StartVertex + i + 0);
+            batch->Indices[batch->Offset++] = (StartVertex + i + 1);
+          }
+          break;
+        case D3DPT_TRIANGLELIST:
+          batch->Indices.resize(batch->Offset + PrimitiveCount * 3);
+          for (UINT i = 0; i < PrimitiveCount; i++) {
+            batch->Indices[batch->Offset++] = (StartVertex + i * 3 + 0);
+            batch->Indices[batch->Offset++] = (StartVertex + i * 3 + 1);
+            batch->Indices[batch->Offset++] = (StartVertex + i * 3 + 2);
+          }
+          break;
+        case D3DPT_TRIANGLESTRIP:
+          // Join with degenerate triangle
+          // 1 2 3, 3 4, 4 5 6
+          batch->Indices.resize(batch->Offset + PrimitiveCount + 2);
+          if (batch->Offset > 0) {
+            batch->Indices[batch->Offset + 1] = batch->Indices[batch->Offset-2];
+            batch->Indices[batch->Offset += 2] = StartVertex;
+          }
+          for (UINT i = 0; i < PrimitiveCount; i++) {
+            batch->Indices[batch->Offset++] = (StartVertex + i + 0);
+          }
+          break;
+        // 1 2 3 4 5 6 7 -> 1 2 3, 1 3 4, 1 4 5, 1 5 6, 1 6 7
+        case D3DPT_TRIANGLEFAN:
+          batch->Indices.resize(batch->Offset + PrimitiveCount * 3);
+          for (UINT i = 0; i < PrimitiveCount; i++) {
+            batch->Indices[batch->Offset++] = (StartVertex + 0);
+            batch->Indices[batch->Offset++] = (StartVertex + i + 1);
+            batch->Indices[batch->Offset++] = (StartVertex + i + 2);
+          }
+          break;
+        default:
+          return D3DERR_INVALIDCALL;
+      }
+      batch->MinVertex = std::min(batch->MinVertex, StartVertex);
+      if (!batch->Indices.empty())
+        batch->MaxVertex = std::max(batch->MaxVertex, UINT(batch->Indices.back() + 1));
+      batch->PrimitiveCount += PrimitiveCount;
+      batch->DrawCallCount++;
+      return D3D_OK;
+    }
+
+    inline void SetStream(UINT num, D3D8VertexBuffer* stream, UINT stride) {
+      if (unlikely(num != 0)) {
+        StateChange();
+        return;
+      }
+      if (unlikely(m_stream != stream || m_stride != stride)) {
+        StateChange();
+        m_stream = static_cast<D3D8BatchBuffer*>(stream);
+        m_stride = stride;
+      }
+    }
+
+    inline void SetIndices(D3D8IndexBuffer* indices, INT baseVertexIndex) {
+      if (m_indices != indices || m_baseVertexIndex != baseVertexIndex) {
+        StateChange();
+        m_indices = indices;
+        m_baseVertexIndex = baseVertexIndex;
+      }
+    }
+
+  private:
+    D3D8Device*                     m_device8;
+    Com<d3d9::IDirect3DDevice9>     m_device;
+
+    D3D8BatchBuffer*                m_stream = nullptr;
+    UINT                            m_stride = 0;
+    D3D8IndexBuffer*                m_indices = nullptr;
+    INT                             m_baseVertexIndex = 0;
+    std::array<Batch, D3DPT_COUNT>  m_batches;
+  };
+}