Stefan Dösinger : wined3d: Fog fixes.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: d5f95961f13287eb68fe47a9469f1a76bde379af
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=d5f95961f13287eb68fe47a9469f1a76bde379af

Author: Stefan Dösinger <stefandoesinger at gmx.at>
Date:   Thu May 25 00:40:08 2006 +0200

wined3d: Fog fixes.

---

 dlls/wined3d/device.c |   31 ++++++++++++++++++++-----------
 1 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index c473de7..9eaca1d 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -3591,7 +3591,13 @@ #endif
         {
           glHint(GL_FOG_HINT, GL_NICEST);
           switch (Value) {
-          case D3DFOG_NONE:    /* I don't know what to do here */ checkGLcall("glFogi(GL_FOG_MODE, GL_EXP"); break;
+          case D3DFOG_NONE: {
+              if(This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == D3DFOG_NONE) {
+                  glFogi(GL_FOG_MODE, GL_LINEAR); checkGLcall("glFogi(GL_FOG_MODE, GL_LINEAR");
+              }
+              /* Otherwise leave the vertex fog value */
+              break;
+          }
           case D3DFOG_EXP:     glFogi(GL_FOG_MODE, GL_EXP); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP"); break;
           case D3DFOG_EXP2:    glFogi(GL_FOG_MODE, GL_EXP2); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP2"); break;
           case D3DFOG_LINEAR:  glFogi(GL_FOG_MODE, GL_LINEAR); checkGLcall("glFogi(GL_FOG_MODE, GL_LINEAR"); break;
@@ -3607,16 +3613,19 @@ #endif
     case WINED3DRS_FOGVERTEXMODE             :
         {
           glHint(GL_FOG_HINT, GL_FASTEST);
-          switch (Value) {
-          case D3DFOG_NONE:    /* I don't know what to do here */ checkGLcall("glFogi(GL_FOG_MODE, GL_EXP"); break;
-          case D3DFOG_EXP:     glFogi(GL_FOG_MODE, GL_EXP); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP"); break;
-          case D3DFOG_EXP2:    glFogi(GL_FOG_MODE, GL_EXP2); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP2"); break;
-          case D3DFOG_LINEAR:  glFogi(GL_FOG_MODE, GL_LINEAR); checkGLcall("glFogi(GL_FOG_MODE, GL_LINEAR"); break;
-          default:
-            FIXME("Unsupported Value(%lu) for WINED3DRS_FOGTABLEMODE!\n", Value);
-          }
-          if (GL_SUPPORT(NV_FOG_DISTANCE)) {
-            glFogi(GL_FOG_DISTANCE_MODE_NV, This->stateBlock->renderState[WINED3DRS_RANGEFOGENABLE] ? GL_EYE_RADIAL_NV : GL_EYE_PLANE_ABSOLUTE_NV);
+          /* DX 7 sdk: "If both render states(vertex and table fog) are set to valid modes, the system will apply only pixel(=table) fog effects." */
+          if(This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == D3DFOG_NONE) {
+              switch (Value) {
+              case D3DFOG_EXP:     glFogi(GL_FOG_MODE, GL_EXP); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP"); break;
+              case D3DFOG_EXP2:    glFogi(GL_FOG_MODE, GL_EXP2); checkGLcall("glFogi(GL_FOG_MODE, GL_EXP2"); break;
+              case D3DFOG_NONE:
+              case D3DFOG_LINEAR:  glFogi(GL_FOG_MODE, GL_LINEAR); checkGLcall("glFogi(GL_FOG_MODE, GL_LINEAR"); break;
+              default:
+                FIXME("Unsupported Value(%lu) for WINED3DRS_FOGTABLEMODE!\n", Value);
+              }
+              if (GL_SUPPORT(NV_FOG_DISTANCE)) {
+                glFogi(GL_FOG_DISTANCE_MODE_NV, This->stateBlock->renderState[WINED3DRS_RANGEFOGENABLE] ? GL_EYE_RADIAL_NV : GL_EYE_PLANE_ABSOLUTE_NV);
+              }
           }
         }
         break;