Merge branch 'master' into asm-shader-rework-2

[mesa.git] / src / mesa / drivers / dri / i965 / brw_sf.c

diff --git a/src/mesa/drivers/dri/i965/brw_sf.c b/src/mesa/drivers/dri/i965/brw_sf.c
index 8c1711538af5de59e8c2729e119565945a43c5f8..e1c2c7777b518b0875d4c0e4274d703f024403a0 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_sf.c
+++ b/src/mesa/drivers/dri/i965/brw_sf.c
@@ -166,9 +166,18 @@ static void upload_sf_prog(struct brw_context *brw)
    key.do_flat_shading = (ctx->Light.ShadeModel == GL_FLAT);
    key.do_twoside_color = (ctx->Light.Enabled && ctx->Light.Model.TwoSide);
 
+   /* _NEW_HINT */
+   key.linear_color = (ctx->Hint.PerspectiveCorrection == GL_FASTEST);
+
    /* _NEW_POLYGON */
-   if (key.do_twoside_color)
-      key.frontface_ccw = (ctx->Polygon.FrontFace == GL_CCW);
+   if (key.do_twoside_color) {
+      /* If we're rendering to a FBO, we have to invert the polygon
+       * face orientation, just as we invert the viewport in
+       * sf_unit_create_from_key().  ctx->DrawBuffer->Name will be
+       * nonzero if we're rendering to such an FBO.
+       */
+      key.frontface_ccw = (ctx->Polygon.FrontFace == GL_CCW) ^ (ctx->DrawBuffer->Name != 0);
+   }
 
    dri_bo_unreference(brw->sf.prog_bo);
    brw->sf.prog_bo = brw_search_cache(&brw->cache, BRW_SF_PROG,
@@ -182,7 +191,7 @@ static void upload_sf_prog(struct brw_context *brw)
 
 const struct brw_tracked_state brw_sf_prog = {
    .dirty = {
-      .mesa  = (_NEW_LIGHT|_NEW_POLYGON|_NEW_POINT),
+      .mesa  = (_NEW_HINT | _NEW_LIGHT | _NEW_POLYGON | _NEW_POINT),
       .brw   = (BRW_NEW_REDUCED_PRIMITIVE),
       .cache = CACHE_NEW_VS_PROG
    },