From 7c3f715f19c0ab70e21c42474f06454dab7877f4 Mon Sep 17 00:00:00 2001
From: "XTra.KrazzY" <XTra.KrazzY@gmail.com>
Date: Sat, 20 Sep 2008 14:43:10 +0000
Subject: [PATCH] More fog emulation groundwork both in OpenGL and DX9. Needs
 more fog format researching.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@586 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Source/Core/VideoCommon/Src/BPMemory.h        |  1 +
 .../Plugins/Plugin_VideoDX9/Src/BPStructs.cpp | 20 ++++++++++++++-----
 .../Plugins/Plugin_VideoOGL/Src/BPStructs.cpp |  8 ++++++++
 3 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/Source/Core/VideoCommon/Src/BPMemory.h b/Source/Core/VideoCommon/Src/BPMemory.h
index 7e029af09a..06c48d9351 100644
--- a/Source/Core/VideoCommon/Src/BPMemory.h
+++ b/Source/Core/VideoCommon/Src/BPMemory.h
@@ -39,6 +39,7 @@
 #define BPMEM_CLEARBBOX2       0x56 //  TODO(ector): add something that watches bboxes
 #define BPMEM_TEXMODE0_1       0x80
 #define BPMEM_TEXMODE0_2       0xA0
+#define BPMEM_FOGRANGE         0xE8
 #define BPMEM_FOGPARAM0        0xEE
 #define BPMEM_FOGBMAGNITUDE    0xEF
 #define BPMEM_FOGBEXPONENT     0xF0
diff --git a/Source/Plugins/Plugin_VideoDX9/Src/BPStructs.cpp b/Source/Plugins/Plugin_VideoDX9/Src/BPStructs.cpp
index 87a7cbb6c6..630894e824 100644
--- a/Source/Plugins/Plugin_VideoDX9/Src/BPStructs.cpp
+++ b/Source/Plugins/Plugin_VideoDX9/Src/BPStructs.cpp
@@ -311,6 +311,14 @@ void BPWritten(int addr, int changes, int newval)
 		}
 		break;
 
+	case BPMEM_FOGRANGE:
+		if(changes) {
+			// TODO(XK): Fog range format
+			//Renderer::SetRenderState(D3DRS_FOGSTART, ...
+			//Renderer::SetRenderState(D3DRS_FOGEND, ...
+		}
+		break;
+
 	case BPMEM_FOGPARAM0:
 		{
 			// u32 fogATemp = bpmem.fog.a<<12;
@@ -341,11 +349,7 @@ void BPWritten(int addr, int changes, int newval)
 			/// u32 fogCTemp = bpmem.fog.c_proj_fsel.cShifted12 << 12;
 			// float fogC = *(float*)(&fogCTemp);
 
-			if(bpmem.fog.c_proj_fsel.fsel > 0 && !bFog) {
-				Renderer::SetRenderState(D3DRS_FOGENABLE, true);
-				bFog = true;
-			}
-
+			
 			//printf("%f %f magnitude: %x\n", bpmem.fog.a.GetA(),bpmem.fog.c_proj_fsel.GetC(), bpmem.fog.b_magnitude);
 			switch(bpmem.fog.c_proj_fsel.fsel)
 			{
@@ -373,6 +377,12 @@ void BPWritten(int addr, int changes, int newval)
 				PanicAlert("Non-Emulated Fog selection %d\n", bpmem.fog.c_proj_fsel.fsel);
 				break;
 			}
+
+			if(bpmem.fog.c_proj_fsel.fsel > 0 && !bFog) {
+				Renderer::SetRenderState(D3DRS_FOGENABLE, true);
+				bFog = true;
+			}
+
 		}
 		break;
 
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/BPStructs.cpp b/Source/Plugins/Plugin_VideoOGL/Src/BPStructs.cpp
index eb8c3978a2..282d29adad 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/BPStructs.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/BPStructs.cpp
@@ -256,6 +256,14 @@ void BPWritten(int addr, int changes, int newval)
         }
         break;
 
+	case BPMEM_FOGRANGE:
+		if(changes) {
+			// TODO(XK): Fog range format
+			//glFogi(GL_FOG_START, ...
+			//glFogi(GL_FOG_END, ...
+		}
+		break;
+
     case BPMEM_FOGPARAM0:
     case BPMEM_FOGBEXPONENT: 
     case BPMEM_FOGBMAGNITUDE: