xrRender_R1: port more of LightShadows code to FFP (#1313)

src/Layers/xrRender/blenders/Blender_Shadow_Texture.cpp

@@ -0,0 +1,46 @@
+#include "stdafx.h"
+
+#include "Blender_Shadow_Texture.h"
+
+#if RENDER != R_R1
+#error "The blender can't be used in this renderer generation"
+#endif
+
+CBlender_ShTex::CBlender_ShTex()
+{
+ description.CLS = B_SHADOW_TEX;
+}
+
+LPCSTR CBlender_ShTex::getComment()
+{
+ return "INTERNAL: shadow rendering";
+}
+
+BOOL CBlender_ShTex::canBeLMAPped()
+{
+ return FALSE;
+}
+
+void CBlender_ShTex::Compile(CBlender_Compile& C)
+{
+ IBlender::Compile(C);
+ C.PassBegin();
+ {
+ C.PassSET_ZB(FALSE, FALSE);
+ C.PassSET_Blend_SET();
+ C.PassSET_LightFog(FALSE, FALSE);
+
+ // Stage0 - Base texture
+ C.StageBegin();
+ C.StageSET_Color(D3DTA_TFACTOR, D3DTOP_SELECTARG1, D3DTA_TFACTOR);
+ C.StageSET_Alpha(D3DTA_TFACTOR, D3DTOP_SELECTARG1, D3DTA_TFACTOR);
+ C.Stage_Texture("$null");
+ C.Stage_Matrix("$null", 0);
+ C.Stage_Constant("$null");
+ C.StageEnd();
+
+ // 
+ C.R().SetRS(D3DRS_TEXTUREFACTOR, 0);
+ }
+ C.PassEnd();
+}

src/Layers/xrRender/blenders/Blender_Shadow_Texture.h

@@ -0,0 +1,12 @@
+#pragma once
+
+class CBlender_ShTex : public IBlender 
+{
+public:
+ CBlender_ShTex();
+
+ LPCSTR getComment() override;
+ BOOL canBeLMAPped() override;
+
+ void Compile (CBlender_Compile& C) override;
+};

src/Layers/xrRenderPC_R1/LightShadows.cpp

@@ -4,6 +4,7 @@
 #include "xrEngine/xr_object.h"
 #include "Layers/xrRender/FBasicVisual.h"
 #include "Layers/xrRender/blenders/Blender_Blur.h"
+#include "Layers/xrRender/blenders/Blender_Shadow_Texture.h"
 #include "xrEngine/CustomHUD.h"
 
 const float S_distance = 144;
@@ -48,6 +49,16 @@ CLightShadows::CLightShadows() : xrc("LightShadows")
  //
  recreate_rt();
 
+ if (RImplementation.o.ffp)
+ {
+ sh_Texture.create("effects\\shadow_texture");
+ if (!sh_Texture)
+ {
+ CBlender_ShTex blender;
+ sh_Texture.create(&blender, "effects\\shadow_texture");
+ }
+ }
+
  sh_World.create("effects" DELIMITER "shadow_world", r1_RT_shadow);
  geom_World.create(FVF::F_LIT, RImplementation.Vertex.Buffer(), nullptr);
 
@@ -215,6 +226,8 @@ void CLightShadows::calculate()
  bRTS = TRUE;
  RCache.set_RT(rt_temp->pRT);
  RCache.set_ZB(RImplementation.Target->rt_temp_zb->pRT);
+ if (RImplementation.o.ffp)
+ RCache.set_Shader(sh_Texture);
  RCache.ClearRT(rt_temp, { 1.0f, 1.0f, 1.0f, 1.0f });
  }
 
@@ -317,7 +330,8 @@ void CLightShadows::calculate()
  {
  NODE& N = C.nodes[n_it];
  dxRender_Visual* V = N.pVisual;
- RCache.set_Element(V->shader->E[SE_R1_LMODELS]);
+ if (!RImplementation.o.ffp)
+ RCache.set_Element(V->shader->E[SE_R1_LMODELS]);
  RCache.set_xform_world(N.Matrix);
  V->Render(-1.0f, dsgraph.o.phase == CRender::PHASE_SMAP);
  }
@@ -412,7 +426,15 @@ static ICF float PLC_energy_SSE(const Fvector& p, const Fvector& n, const light*
  const float D = lDir.dotproduct(n);
  if (D <= 0)
  return 0;
+
  // Trace Light
+ if (RImplementation.o.ffp)
+ {
+ const auto& ldata = L->ldata;
+ const float R = _sqrt(sqD);
+ const float A = D * e / (ldata.attenuation0 + ldata.attenuation1 * R + ldata.attenuation2 * sqD);
+ return A;
+ }
  __m128 rcpr = _mm_rsqrt_ss(_mm_load_ss(&sqD));
  rcpr = _mm_rcp_ss(_mm_add_ss(rcpr, _mm_set_ss(1.0f)));
  float att;
@@ -479,7 +501,7 @@ void CLightShadows::render()
  for (u32 s_it = 0; s_it < shadows.size(); s_it++)
  {
  shadow& S = shadows[s_it];
- float Le = S.L->color.intensity() * S.E;
+ float Le = RImplementation.o.ffp ? S.L->ldata.diffuse.magnitude_rgb() : S.L->color.intensity() * S.E;
  int s_x = S.slot % slot_line;
  int s_y = S.slot / slot_line;
  Fvector2 t_scale, t_offset;

src/Layers/xrRenderPC_R1/LightShadows.h

@@ -65,6 +65,7 @@ class CLightShadows
 
  ref_rt rt_shadow;
  ref_rt rt_temp;
+ ref_shader sh_Texture;
  ref_shader sh_BlurTR;
  ref_shader sh_BlurRT;
  ref_geom geom_Blur;

src/Layers/xrRenderPC_R1/xrRender_R1.vcxproj

@@ -70,6 +70,7 @@
  <ClInclude Include="..\xrRender\AnimationKeyCalculate.h" />
  <ClInclude Include="..\xrRender\Blender.h" />
  <ClInclude Include="..\xrRender\blenders\blender_light.h" />
+ <ClInclude Include="..\xrRender\blenders\Blender_Shadow_Texture.h" />
  <ClInclude Include="..\xrRender\Blender_CLSID.h" />
  <ClInclude Include="..\xrRender\Blender_Recorder.h" />
  <ClInclude Include="..\xrRender\blenders\Blender_BmmD.h" />
@@ -198,6 +199,7 @@
  <ClCompile Include="..\xrRender\Animation.cpp" />
  <ClCompile Include="..\xrRender\Blender.cpp" />
  <ClCompile Include="..\xrRender\blenders\blender_light.cpp" />
+ <ClCompile Include="..\xrRender\blenders\Blender_Shadow_Texture.cpp" />
  <ClCompile Include="..\xrRender\Blender_Recorder.cpp" />
  <ClCompile Include="..\xrRender\blenders\Blender_BmmD.cpp" />
  <ClCompile Include="..\xrRender\blenders\Blender_detail_still.cpp" />

src/Layers/xrRenderPC_R1/xrRender_R1.vcxproj.filters

@@ -600,6 +600,9 @@
  <ClInclude Include="..\xrRender\blenders\blender_light.h">
  <Filter>Shading templates</Filter>
  </ClInclude>
+ <ClInclude Include="..\xrRender\blenders\Blender_Shadow_Texture.h">
+ <Filter>Shading templates</Filter>
+ </ClInclude>
  </ItemGroup>
  <ItemGroup>
  <ClCompile Include="stdafx.cpp">
@@ -1001,6 +1004,9 @@
  <ClCompile Include="..\xrRender\blenders\blender_light.cpp">
  <Filter>Shading templates</Filter>
  </ClCompile>
+ <ClCompile Include="..\xrRender\blenders\Blender_Shadow_Texture.cpp">
+ <Filter>Shading templates</Filter>
+ </ClCompile>
  </ItemGroup>
  <ItemGroup>
  <Text Include="Pipeline.txt" />