[Mesa-dev] [PATCH 4/7] i965: Add support for Z16 depth formats.

[Eric Anholt]

This is required by GL 3.0's Required Texture Formats section.  All
the other code for this format in hardware was already in place.
---
 src/mesa/drivers/dri/i965/brw_vtbl.c             |    3 ++-
 src/mesa/drivers/dri/i965/brw_wm_surface_state.c |    1 +
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c b/src/mesa/drivers/dri/i965/brw_vtbl.c
index dd2e05a..a3a8d09 100644
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -215,7 +215,8 @@ static bool brw_is_hiz_depth_format(struct intel_context *intel,
                                     gl_format format)
 {
    /* In the future, this will support Z_FLOAT32. */
-   return intel->has_hiz && (format == MESA_FORMAT_X8_Z24);
+   return intel->has_hiz && (format == MESA_FORMAT_X8_Z24 ||
+			     format == MESA_FORMAT_Z16);
 }
 
 void brwInitVtbl( struct brw_context *brw )
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 0f6abe2..d51fdac 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -547,6 +547,7 @@ brw_init_surface_formats(struct brw_context *brw)
     */
    ctx->TextureFormatSupported[MESA_FORMAT_S8_Z24] = true;
    ctx->TextureFormatSupported[MESA_FORMAT_X8_Z24] = true;
+   ctx->TextureFormatSupported[MESA_FORMAT_Z16] = true;
 }
 
 bool
-- 
1.7.7.3