st/mesa: add EXT_depth_bounds_test

Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/mesa/state_tracker/st_atom_depth.c b/src/mesa/state_tracker/st_atom_depth.c
index c4bca8d09b5e3ad0bba11dc8c74c2c8d97cbf45f..d9cc97029fb2d353b65a93bb3c1ec0f58974f172 100644 (file)
--- a/src/mesa/state_tracker/st_atom_depth.c
+++ b/src/mesa/state_tracker/st_atom_depth.c
@@ -105,10 +105,17 @@ update_depth_stencil_alpha(struct st_context *st)
    memset(dsa, 0, sizeof(*dsa));
    memset(&sr, 0, sizeof(sr));
 
-   if (ctx->Depth.Test && ctx->DrawBuffer->Visual.depthBits > 0) {
-      dsa->depth.enabled = 1;
-      dsa->depth.writemask = ctx->Depth.Mask;
-      dsa->depth.func = st_compare_func_to_pipe(ctx->Depth.Func);
+   if (ctx->DrawBuffer->Visual.depthBits > 0) {
+      if (ctx->Depth.Test) {
+         dsa->depth.enabled = 1;
+         dsa->depth.writemask = ctx->Depth.Mask;
+         dsa->depth.func = st_compare_func_to_pipe(ctx->Depth.Func);
+      }
+      if (ctx->Depth.BoundsTest) {
+         dsa->depth.bounds_test = 1;
+         dsa->depth.bounds_min = ctx->Depth.BoundsMin;
+         dsa->depth.bounds_max = ctx->Depth.BoundsMax;
+      }
    }
 
    if (ctx->Stencil.Enabled && ctx->DrawBuffer->Visual.stencilBits > 0) {

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 7864cf8cb42cc02b823227a985abf504a3888321..17f572f80fbf25e717a824c3a651bb361b99b395 100644 (file)
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -491,6 +491,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_texture_view),                 PIPE_CAP_SAMPLER_VIEW_TARGET              },
       { o(ARB_clip_control),                 PIPE_CAP_CLIP_HALFZ                       },
       { o(EXT_polygon_offset_clamp),         PIPE_CAP_POLYGON_OFFSET_CLAMP             },
+      { o(EXT_depth_bounds_test),            PIPE_CAP_DEPTH_BOUNDS_TEST                },
    };
 
    /* Required: render target and sampler support */