diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_iz.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_iz.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_iz.c b/src/mesa/drivers/dri/i965/brw_wm_iz.c index 8505ef1951..62e556698b 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_iz.c +++ b/src/mesa/drivers/dri/i965/brw_wm_iz.c @@ -120,24 +120,38 @@ const struct { * \param line_aa AA_NEVER, AA_ALWAYS or AA_SOMETIMES * \param lookup bitmask of IZ_* flags */ -void brw_wm_lookup_iz( GLuint line_aa, +void brw_wm_lookup_iz( struct intel_context *intel, + GLuint line_aa, GLuint lookup, GLboolean ps_uses_depth, struct brw_wm_prog_key *key ) { GLuint reg = 2; + GLboolean kill_stats_promoted_workaround = GL_FALSE; assert (lookup < IZ_BIT_MAX); - + + /* Crazy workaround in the windowizer, which we need to track in + * our register allocation and render target writes. See the "If + * statistics are enabled..." paragraph of 11.5.3.2: Early Depth + * Test Cases [Pre-DevGT] of the 3D Pipeline - Windower B-Spec. + */ + if (intel->stats_wm && + (lookup & IZ_PS_KILL_ALPHATEST_BIT) && + wm_iz_table[lookup].mode == P) { + kill_stats_promoted_workaround = GL_TRUE; + } + if (lookup & IZ_PS_COMPUTES_DEPTH_BIT) key->computes_depth = 1; - if (wm_iz_table[lookup].sd_present || ps_uses_depth) { + if (wm_iz_table[lookup].sd_present || ps_uses_depth || + kill_stats_promoted_workaround) { key->source_depth_reg = reg; reg += 2; } - if (wm_iz_table[lookup].sd_to_rt) + if (wm_iz_table[lookup].sd_to_rt || kill_stats_promoted_workaround) key->source_depth_to_render_target = 1; if (wm_iz_table[lookup].ds_present || line_aa != AA_NEVER) { |