r300g: Account for CS space used per atom.

Oh yeah, those atoms are startin' to pay off. The main obstacle now
for OA playability is the absurdly low default mouse sensitivity, IMO.
Not totally smooth yet, but getting there.

1 files changed, 14 insertions, 4 deletions

diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index ba04bd07cc..9f93327e59 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -41,6 +41,7 @@ void r300_emit_blend_state(struct r300_context* r300, void* state)
 {
     struct r300_blend_state* blend = (struct r300_blend_state*)state;
     CS_LOCALS(r300);
+
     BEGIN_CS(8);
     OUT_CS_REG(R300_RB3D_ROPCNTL, blend->rop);
     OUT_CS_REG_SEQ(R300_RB3D_CBLEND, 3);
@@ -992,14 +993,23 @@ void r300_emit_dirty_state(struct r300_context* r300)
     struct r300_screen* r300screen = r300_screen(r300->context.screen);
     struct r300_texture* tex;
     struct r300_atom* atom;
-    int i, dirty_tex = 0;
+    unsigned i, dwords = 1024;
+    int dirty_tex = 0;
     boolean invalid = FALSE;
 
-    /* Check size of CS. */
-    /* Make sure we have at least 8*1024 spare dwords. */
+    /* Check the required number of dwords against the space remaining in the
+     * current CS object. If we need more, then flush. */
+
+    foreach(atom, &r300->atom_list) {
+        if (atom->dirty || atom->always_dirty) {
+            dwords += atom->size;
+        }
+    }
+
+    /* Make sure we have at least 2*1024 spare dwords. */
     /* XXX It would be nice to know the number of dwords we really need to
      * XXX emit. */
-    if (!r300->winsys->check_cs(r300->winsys, 8*1024)) {
+    if (!r300->winsys->check_cs(r300->winsys, dwords)) {
         r300->context.flush(&r300->context, 0, NULL);
     }