Mesa (master): i965/gen7: Add a prepare_depthbuffer function.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 53b53a141ee4da9bf03b42d6381823520cd2e980
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=53b53a141ee4da9bf03b42d6381823520cd2e980

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Mon May 23 14:40:51 2011 -0700

i965/gen7: Add a prepare_depthbuffer function.

We need to call add_validated_bo to do proper aperture space accounting.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Eric Anholt <eric at anholt.net>

---

 src/mesa/drivers/dri/i965/gen7_misc_state.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/gen7_misc_state.c b/src/mesa/drivers/dri/i965/gen7_misc_state.c
index 0364b61..0240211 100644
--- a/src/mesa/drivers/dri/i965/gen7_misc_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_misc_state.c
@@ -56,6 +56,20 @@ gen7_depth_format(struct brw_context *brw)
    return 0;
 }
 
+static void prepare_depthbuffer(struct brw_context *brw)
+{
+   struct intel_context *intel = &brw->intel;
+   struct gl_context *ctx = &intel->ctx;
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
+   struct intel_renderbuffer *drb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
+   struct intel_renderbuffer *srb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
+
+   if (drb)
+      brw_add_validated_bo(brw, drb->region->buffer);
+   if (srb)
+      brw_add_validated_bo(brw, srb->region->buffer);
+}
+
 static void emit_depthbuffer(struct brw_context *brw)
 {
    struct intel_context *intel = &brw->intel;
@@ -138,5 +152,6 @@ const struct brw_tracked_state gen7_depthbuffer = {
       .brw = BRW_NEW_BATCH,
       .cache = 0,
    },
+   .prepare = prepare_depthbuffer,
    .emit = emit_depthbuffer,
 };