Engine, shaders: add lut phase

Author: yohjimane

res/gamedata/shaders/r5/combine_2_naa.ps

@@ -0,0 +1,25 @@
+#include "stdafx.h"
+
+#include "blender_lut.h"
+
+CBlender_lut::CBlender_lut() { description.CLS = 0; }
+
+LPCSTR CBlender_lut::getComment()
+{
+    return "INTERNAL: LUT";
+}
+
+void CBlender_lut::Compile(CBlender_Compile& C)
+{
+	IBlender::Compile(C);
+
+    C.r_Pass("stub_screen_space", "pp_lut", FALSE, FALSE, FALSE);
+    C.r_dx11Texture("s_image", r2_RT_generic0);
+    C.r_dx11Texture("s_lut_atlas", "shaders\\lut_atlas");
+
+    C.r_dx11Sampler("smp_base");
+    C.r_dx11Sampler("smp_nofilter");
+    C.r_dx11Sampler("smp_rtlinear");
+    C.r_dx11Sampler("smp_linear");
+    C.r_End();
+}

res/gamedata/shaders/r5/pp_lut.ps

@@ -0,0 +1,11 @@
+#pragma once
+
+class CBlender_lut : public IBlender
+{
+public:
+    CBlender_lut();
+    ~CBlender_lut() override = default;
+
+    LPCSTR getComment() override;
+    void Compile(CBlender_Compile& C) override;
+};

src/Layers/xrRender/blenders/blender_lut.cpp

@@ -0,0 +1,55 @@
+#include "stdafx.h"
+
+void CRenderTarget::phase_lut()
+{
+    PIX_EVENT(phase_LUT);
+
+    //Constants
+    u32 Offset = 0;
+    u32 C = color_rgba(0, 0, 0, 255);
+
+    float d_Z = EPS_S;
+    float d_W = 1.0f;
+    float w = float(Device.dwWidth);
+    float h = float(Device.dwHeight);
+
+    Fvector2 p0, p1;
+#if defined(USE_DX10) || defined(USE_DX11)
+    p0.set(0.0f, 0.0f);
+    p1.set(1.0f, 1.0f);
+#else
+    p0.set(0.5f / w, 0.5f / h);
+    p1.set((w + 0.5f) / w, (h + 0.5f) / h);
+#endif
+
+    //////////////////////////////////////////////////////////////////////////
+    //Set MSAA/NonMSAA rendertarget
+#if defined(USE_DX10) || defined(USE_DX11)
+    ref_rt& dest_rt = RImplementation.o.msaa ? rt_Generic : rt_Color;
+    u_setrt(RCache, dest_rt, 0, 0, NULL);
+#else
+    u_setrt(rt_Generic_0, nullptr, nullptr, nullptr);
+#endif
+
+    RCache.set_CullMode(CULL_NONE);
+    RCache.set_Stencil(FALSE);
+
+    //Fill vertex buffer
+    FVF::TL* pv = (FVF::TL*)RImplementation.Vertex.Lock(4, g_combine->vb_stride, Offset);
+    pv->set(0, float(h), d_Z, d_W, C, p0.x, p1.y); pv++;
+    pv->set(0, 0, d_Z, d_W, C, p0.x, p0.y); pv++;
+    pv->set(float(w), float(h), d_Z, d_W, C, p1.x, p1.y); pv++;
+    pv->set(float(w), 0, d_Z, d_W, C, p1.x, p0.y); pv++;
+    RImplementation.Vertex.Unlock(4, g_combine->vb_stride);
+
+    //Set pass
+    RCache.set_Element(s_lut->E[0]);
+
+    //Set geometry
+    RCache.set_Geometry(g_combine);
+    RCache.Render(D3DPT_TRIANGLELIST, Offset, 0, 4, 0, 2);
+
+#if defined(USE_DX10) || defined(USE_DX11)
+    HW.get_context(CHW::IMM_CTX_ID)->CopyResource(rt_Generic_0->pTexture->surface_get(), dest_rt->pTexture->surface_get());
+#endif
+};

src/Layers/xrRender/blenders/blender_lut.h

@@ -400,6 +400,8 @@ void CRenderTarget::phase_combine()
         if (ps_r2_ls_flags.test(R2FLAG_DOF))
             phase_dof();
 
+        phase_lut();
+
         //(Anomaly) Compute night vision effect
         if (ps_r2_nightvision > 0)
             phase_nightvision();

src/Layers/xrRender/rendertarget_phase_lut.cpp

@@ -75,6 +75,7 @@
     <ClInclude Include="..\xrRender\blenders\blender_dof.h" />
     <ClInclude Include="..\xrRender\blenders\blender_gasmask_drops.h" />
     <ClInclude Include="..\xrRender\blenders\blender_gasmask_dudv.h" />
+    <ClInclude Include="..\xrRender\blenders\blender_lut.h" />
     <ClInclude Include="..\xrRender\blenders\blender_nightvision.h" />
     <ClInclude Include="..\xrRender\blenders\dx11RainBlender.h" />
     <ClInclude Include="..\xrRenderDX11\dx11ConstantBuffer.h" />
@@ -246,6 +247,7 @@
     <ClCompile Include="..\xrRender\blenders\blender_dof.cpp" />
     <ClCompile Include="..\xrRender\blenders\blender_gasmask_drops.cpp" />
     <ClCompile Include="..\xrRender\blenders\blender_gasmask_dudv.cpp" />
+    <ClCompile Include="..\xrRender\blenders\blender_lut.cpp" />
     <ClCompile Include="..\xrRender\blenders\Blender_Model_EbB_deferred.cpp" />
     <ClCompile Include="..\xrRender\blenders\blender_nightvision.cpp" />
     <ClCompile Include="..\xrRender\blenders\Blender_Particle_deferred.cpp" />
@@ -335,6 +337,7 @@
     <ClCompile Include="..\xrRender\rendertarget_phase_dof.cpp" />
     <ClCompile Include="..\xrRender\rendertarget_phase_gasmask_drops.cpp" />
     <ClCompile Include="..\xrRender\rendertarget_phase_gasmask_dudv.cpp" />
+    <ClCompile Include="..\xrRender\rendertarget_phase_lut.cpp" />
     <ClCompile Include="..\xrRender\rendertarget_phase_nightvision.cpp" />
     <ClCompile Include="..\xrRender\ResourceManager.cpp" />
     <ClCompile Include="..\xrRender\ResourceManager_Loader.cpp" />

src/Layers/xrRenderPC_R4/r4_rendertarget_phase_combine.cpp

@@ -744,6 +744,9 @@
     <ClInclude Include="..\..\utils\xrLC_Light\R_light.h">
       <Filter>Lights</Filter>
     </ClInclude>
+    <ClInclude Include="..\xrRender\blenders\blender_lut.h">
+      <Filter>Shading templates</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
@@ -1376,6 +1379,12 @@
     <ClCompile Include="..\xrRender\rendertarget_phase_gasmask_dudv.cpp">
       <Filter>Core_Target</Filter>
     </ClCompile>
+    <ClCompile Include="..\xrRender\blenders\blender_lut.cpp">
+      <Filter>Shading templates</Filter>
+    </ClCompile>
+    <ClCompile Include="..\xrRender\rendertarget_phase_lut.cpp">
+      <Filter>Core_Target</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />