radeon/r200: Fix tcl culling

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=57842
(cherry picked from commit 5bf357db89836d0f4e4b8a4cb559755d4734b81b)

diff --git a/src/mesa/drivers/dri/r200/r200_state.c b/src/mesa/drivers/dri/r200/r200_state.c
index 1c33517..93ae52a 100644 (file)
--- a/src/mesa/drivers/dri/r200/r200_state.c
+++ b/src/mesa/drivers/dri/r200/r200_state.c
@@ -529,6 +529,7 @@ static void r200CullFace( struct gl_context *ctx, GLenum unused )
 static void r200FrontFace( struct gl_context *ctx, GLenum mode )
 {
    r200ContextPtr rmesa = R200_CONTEXT(ctx);
+   int cull_face = (mode == GL_CW) ? R200_FFACE_CULL_CW : R200_FFACE_CULL_CCW;
 
    R200_STATECHANGE( rmesa, set );
    rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_FFACE_CULL_DIR_MASK;
@@ -538,17 +539,11 @@ static void r200FrontFace( struct gl_context *ctx, GLenum mode )
 
    /* Winding is inverted when rendering to FBO */
    if (ctx->DrawBuffer && _mesa_is_user_fbo(ctx->DrawBuffer))
-      mode = (mode == GL_CW) ? GL_CCW : GL_CW;
+      cull_face = (mode == GL_CCW) ? R200_FFACE_CULL_CW : R200_FFACE_CULL_CCW;
+   rmesa->hw.set.cmd[SET_SE_CNTL] |= cull_face;
 
-   switch ( mode ) {
-   case GL_CW:
-      rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_FFACE_CULL_CW;
-      break;
-   case GL_CCW:
-      rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_FFACE_CULL_CCW;
+   if ( mode == GL_CCW )
       rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= R200_CULL_FRONT_IS_CCW;
-      break;
-   }
 }
 
 /* =============================================================

diff --git a/src/mesa/drivers/dri/radeon/radeon_state.c b/src/mesa/drivers/dri/radeon/radeon_state.c
index d930e76..e706f79 100644 (file)
--- a/src/mesa/drivers/dri/radeon/radeon_state.c
+++ b/src/mesa/drivers/dri/radeon/radeon_state.c
@@ -437,6 +437,7 @@ static void radeonCullFace( struct gl_context *ctx, GLenum unused )
 static void radeonFrontFace( struct gl_context *ctx, GLenum mode )
 {
    r100ContextPtr rmesa = R100_CONTEXT(ctx);
+   int cull_face = (mode == GL_CW) ? RADEON_FFACE_CULL_CW : RADEON_FFACE_CULL_CCW;
 
    RADEON_STATECHANGE( rmesa, set );
    rmesa->hw.set.cmd[SET_SE_CNTL] &= ~RADEON_FFACE_CULL_DIR_MASK;
@@ -446,17 +447,11 @@ static void radeonFrontFace( struct gl_context *ctx, GLenum mode )
 
    /* Winding is inverted when rendering to FBO */
    if (ctx->DrawBuffer && _mesa_is_user_fbo(ctx->DrawBuffer))
-      mode = (mode == GL_CW) ? GL_CCW : GL_CW;
+      cull_face = (mode == GL_CCW) ? RADEON_FFACE_CULL_CW : RADEON_FFACE_CULL_CCW;
+   rmesa->hw.set.cmd[SET_SE_CNTL] |= cull_face;
 
-   switch ( mode ) {
-   case GL_CW:
-      rmesa->hw.set.cmd[SET_SE_CNTL] |= RADEON_FFACE_CULL_CW;
-      break;
-   case GL_CCW:
-      rmesa->hw.set.cmd[SET_SE_CNTL] |= RADEON_FFACE_CULL_CCW;
+   if ( mode == GL_CCW )
       rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_CULL_FRONT_IS_CCW;
-      break;
-   }
 }