Mesa (mesa_7_7_branch): intel: Check aperture size when doing a blit glClear.

[Eric Anholt]

Module: Mesa
Branch: mesa_7_7_branch
Commit: a1cac0732b53df8b08aa0ef1b440ea4398a467cc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1cac0732b53df8b08aa0ef1b440ea4398a467cc

Author: Eric Anholt <eric at anholt.net>
Date:   Sat Feb  6 17:20:24 2010 +0100

intel: Check aperture size when doing a blit glClear.

Fixes failure in cairo-gl firefox-planet-gnome.
(cherry picked from commit 67e5fd73973eaedf5ec6e0b5139b61f6196fb35c)

Conflicts:

	src/mesa/drivers/dri/intel/intel_blit.c

---

 src/mesa/drivers/dri/intel/intel_blit.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_blit.c b/src/mesa/drivers/dri/intel/intel_blit.c
index 5b94d05..94bf1ce 100644
--- a/src/mesa/drivers/dri/intel/intel_blit.c
+++ b/src/mesa/drivers/dri/intel/intel_blit.c
@@ -376,6 +376,7 @@ intelClearWithBlit(GLcontext *ctx, GLbitfield mask)
       GLint cx, cy, cw, ch;
       drm_clip_rect_t clear;
       int i;
+      drm_intel_bo *aper_array[2];
 
       /* Get clear bounds after locking */
       cx = fb->_Xmin;
@@ -526,6 +527,15 @@ intelClearWithBlit(GLcontext *ctx, GLbitfield mask)
                assert(x1 < x2);
                assert(y1 < y2);
 
+	       /* do space check before going any further */
+	       aper_array[0] = intel->batch->buf;
+	       aper_array[1] = write_buffer;
+
+	       if (drm_intel_bufmgr_check_aperture_space(aper_array,
+							 ARRAY_SIZE(aper_array)) != 0) {
+		  intel_batchbuffer_flush(intel->batch);
+	       }
+
                BEGIN_BATCH(6, REFERENCES_CLIPRECTS);
                OUT_BATCH(CMD);
                OUT_BATCH(BR13);