wined3d: Remove usesFog flag from IWineD3DVertexShaderImpl.

dlls/wined3d/state.c

@@ -765,7 +765,7 @@ static void state_fog(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3DCo
     }
 
     if (use_vs(stateblock->wineD3DDevice)
-            && ((IWineD3DVertexShaderImpl *)stateblock->vertexShader)->usesFog) {
+            && ((IWineD3DVertexShaderImpl *)stateblock->vertexShader)->baseShader.reg_maps.fog) {
         if( stateblock->renderState[WINED3DRS_FOGTABLEMODE] != WINED3DFOG_NONE ) {
             if(!is_ps3) FIXME("Implement table fog for foggy vertex shader\n");
             /* Disable fog */
@@ -3018,7 +3018,7 @@ static void vertexdeclaration(DWORD state, IWineD3DStateBlockImpl *stateblock, W
        ((IWineD3DVertexShaderImpl *)stateblock->vertexShader)->baseShader.function != NULL) {
         useVertexShaderFunction = TRUE;
 
-        if(((IWineD3DVertexShaderImpl *)stateblock->vertexShader)->usesFog != context->last_was_foggy_shader) {
+        if(((IWineD3DVertexShaderImpl *)stateblock->vertexShader)->baseShader.reg_maps.fog != context->last_was_foggy_shader) {
             updateFog = TRUE;
         }
     } else if(context->last_was_foggy_shader) {

dlls/wined3d/vertexshader.c

@@ -337,9 +337,7 @@ static VOID IWineD3DVertexShaderImpl_GenerateShader(
             vshader_glsl_output_unpack(&buffer, 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)
-            This->usesFog = 1;
-        else
+        if (!reg_maps->fog)
             shader_addline(&buffer, "gl_FogFragCoord = gl_Position.z;\n");
         
         /* Write the final position.
@@ -386,9 +384,7 @@ static VOID IWineD3DVertexShaderImpl_GenerateShader(
         shader_generate_main( (IWineD3DBaseShader*) This, &buffer, reg_maps, pFunction);
 
         /* 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)
-            This->usesFog = 1;
-        else
+        if (!reg_maps->fog)
             shader_addline(&buffer, "MOV result.fogcoord, TMP_OUT.z;\n");
 
         /* Write the final position.

dlls/wined3d/wined3d_private.h

@@ -1892,7 +1892,6 @@ typedef struct IWineD3DVertexShaderImpl {
     /* IWineD3DVertexShaderImpl */
     IUnknown                    *parent;
 
-    char                        usesFog;
     DWORD                       usage;
 
     /* Vertex shader input and output semantics */