diff options
| author | Marek Olšák <[email protected]> | 2016-06-28 13:04:07 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-06-29 16:34:22 +0200 |
| commit | 4b11ef23b4c064a6db5fae313b4e2e6bf027c7e1 (patch) | |
| tree | 61d661546548a029b2fb9f963d5154565ad263d5 /src/gallium/drivers/radeon/cayman_msaa.c | |
| parent | 789ed13284cb99b96f2aa69f237959b27c5c3bc2 (diff) | |
radeonsi: use conformant line rasterization
AA lines are not completely correct (see TODO), but everything else
should be.
+ 3 linestipple piglits
Reviewed-by: Edward O'Callaghan <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeon/cayman_msaa.c')
| -rw-r--r-- | src/gallium/drivers/radeon/cayman_msaa.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/gallium/drivers/radeon/cayman_msaa.c b/src/gallium/drivers/radeon/cayman_msaa.c index a9ec4c38754..89c4937a2cc 100644 --- a/src/gallium/drivers/radeon/cayman_msaa.c +++ b/src/gallium/drivers/radeon/cayman_msaa.c @@ -200,6 +200,14 @@ void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, { int setup_samples = nr_samples > 1 ? nr_samples : overrast_samples > 1 ? overrast_samples : 0; + /* Required by OpenGL line rasterization. + * + * TODO: We should also enable perpendicular endcaps for AA lines, + * but that requires implementing line stippling in the pixel + * shader. SC can only do line stippling with axis-aligned + * endcaps. + */ + unsigned sc_line_cntl = S_028BDC_DX10_DIAMOND_TEST_ENA(1); if (setup_samples > 1) { /* indexed by log2(nr_samples) */ @@ -215,7 +223,7 @@ void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, util_logbase2(util_next_power_of_two(ps_iter_samples)); radeon_set_context_reg_seq(cs, CM_R_028BDC_PA_SC_LINE_CNTL, 2); - radeon_emit(cs, S_028BDC_LAST_PIXEL(1) | + radeon_emit(cs, sc_line_cntl | S_028BDC_EXPAND_LINE_WIDTH(1)); /* CM_R_028BDC_PA_SC_LINE_CNTL */ radeon_emit(cs, S_028BE0_MSAA_NUM_SAMPLES(log_samples) | S_028BE0_MAX_SAMPLE_DIST(max_dist[log_samples]) | @@ -242,7 +250,7 @@ void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, } } else { radeon_set_context_reg_seq(cs, CM_R_028BDC_PA_SC_LINE_CNTL, 2); - radeon_emit(cs, S_028BDC_LAST_PIXEL(1)); /* CM_R_028BDC_PA_SC_LINE_CNTL */ + radeon_emit(cs, sc_line_cntl); /* CM_R_028BDC_PA_SC_LINE_CNTL */ radeon_emit(cs, 0); /* CM_R_028BE0_PA_SC_AA_CONFIG */ radeon_set_context_reg(cs, CM_R_028804_DB_EQAA, |