wined3d: Mark vertex shader 3.0 as foggy shaders if they write out the fog coord

[Fabian Bieler]

Vertex shaders are marked as 'foggy shaders' in wined3d if they write out the 
fog coord. Previously this was not done for vertex shaders 3.0. This patch 
corrects this problem.
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From c62ca4196693e0befe9abc8e9ef2b6f601277cdb Mon Sep 17 00:00:00 2001
From: Fabian Bieler <der.fabe at gmx.net>
Date: Thu, 12 Apr 2007 17:51:07 +0200
Subject: [PATCH] wined3d: Mark vertex shader 3.0 as foggy shaders if they write out the fog coord

---
 dlls/wined3d/glsl_shader.c     |    2 ++
 dlls/wined3d/vertexshader.c    |    2 +-
 dlls/wined3d/wined3d_private.h |    1 +
 3 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 5700902..f21ca5d 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -1992,6 +1992,7 @@ void pshader_glsl_input_pack(
 
 void vshader_glsl_output_unpack(
    SHADER_BUFFER* buffer,
+   shader_reg_maps* reg_maps,
    semantic* semantics_out) {
 
    unsigned int i;
@@ -2036,6 +2037,7 @@ void vshader_glsl_output_unpack(
 
            case WINED3DDECLUSAGE_FOG:
                shader_addline(buffer, "gl_FogFragCoord = OUT%u%s;\n", i, reg_mask);
+               reg_maps->fog = 1;
                break;
 
            default:
diff --git a/dlls/wined3d/vertexshader.c b/dlls/wined3d/vertexshader.c
index 22c49c2..72aa28c 100644
--- a/dlls/wined3d/vertexshader.c
+++ b/dlls/wined3d/vertexshader.c
@@ -334,7 +334,7 @@ static VOID IWineD3DVertexShaderImpl_GenerateShader(
 
         /* Unpack 3.0 outputs */
         if (This->baseShader.hex_version >= WINED3DVS_VERSION(3,0))
-            vshader_glsl_output_unpack(&buffer, This->semantics_out);
+            vshader_glsl_output_unpack(&buffer, reg_maps, This->semantics_out);
 
         /* If this shader doesn't use fog copy the z coord to the fog coord so that we can use table fog */
         if (reg_maps->fog)
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index d0da532..0972397 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1733,6 +1733,7 @@ extern void pshader_glsl_input_pack(
 /** GLSL Vertex Shader Prototypes */
 extern void vshader_glsl_output_unpack(
    SHADER_BUFFER* buffer,
+   shader_reg_maps* reg_maps,
    semantic* semantics_out);
 
 /*****************************************************************************
-- 
1.4.4.1