From: Marek Olšák Date: Sun, 15 Mar 2015 16:14:53 +0000 (+0100) Subject: radeonsi: add basic code for overrasterization X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f7796a966d20b04c00025bdc170883f4179a5697;p=mesa.git radeonsi: add basic code for overrasterization This will be used for line and polygon smoothing. This is GCN-only even though it's in shared code. Reviewed-by: Michel Dänzer --- diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c index f0b04f004fb..edd886b96f2 100644 --- a/src/gallium/drivers/r600/evergreen_state.c +++ b/src/gallium/drivers/r600/evergreen_state.c @@ -1692,7 +1692,7 @@ static void evergreen_emit_framebuffer_state(struct r600_context *rctx, struct r evergreen_emit_msaa_state(rctx, rctx->framebuffer.nr_samples, rctx->ps_iter_samples); } else { cayman_emit_msaa_sample_locs(cs, rctx->framebuffer.nr_samples); - cayman_emit_msaa_config(cs, rctx->framebuffer.nr_samples, rctx->ps_iter_samples); + cayman_emit_msaa_config(cs, rctx->framebuffer.nr_samples, rctx->ps_iter_samples, 0); } } diff --git a/src/gallium/drivers/radeon/cayman_msaa.c b/src/gallium/drivers/radeon/cayman_msaa.c index 47fc5c497f1..12a5f604755 100644 --- a/src/gallium/drivers/radeon/cayman_msaa.c +++ b/src/gallium/drivers/radeon/cayman_msaa.c @@ -195,9 +195,12 @@ void cayman_emit_msaa_sample_locs(struct radeon_winsys_cs *cs, int nr_samples) } void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, - int ps_iter_samples) + int ps_iter_samples, int overrast_samples) { - if (nr_samples > 1) { + int setup_samples = nr_samples > 1 ? nr_samples : + overrast_samples > 1 ? overrast_samples : 0; + + if (setup_samples > 1) { /* indexed by log2(nr_samples) */ unsigned max_dist[] = { 0, @@ -206,8 +209,7 @@ void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, cm_max_dist_8x, cm_max_dist_16x }; - - unsigned log_samples = util_logbase2(nr_samples); + unsigned log_samples = util_logbase2(setup_samples); unsigned log_ps_iter_samples = util_logbase2(util_next_power_of_two(ps_iter_samples)); @@ -218,15 +220,23 @@ void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, S_028BE0_MAX_SAMPLE_DIST(max_dist[log_samples]) | S_028BE0_MSAA_EXPOSED_SAMPLES(log_samples)); /* CM_R_028BE0_PA_SC_AA_CONFIG */ - r600_write_context_reg(cs, CM_R_028804_DB_EQAA, - S_028804_MAX_ANCHOR_SAMPLES(log_samples) | - S_028804_PS_ITER_SAMPLES(log_ps_iter_samples) | - S_028804_MASK_EXPORT_NUM_SAMPLES(log_samples) | - S_028804_ALPHA_TO_MASK_NUM_SAMPLES(log_samples) | - S_028804_HIGH_QUALITY_INTERSECTIONS(1) | - S_028804_STATIC_ANCHOR_ASSOCIATIONS(1)); - r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, - EG_S_028A4C_PS_ITER_SAMPLE(ps_iter_samples > 1)); + if (nr_samples > 1) { + r600_write_context_reg(cs, CM_R_028804_DB_EQAA, + S_028804_MAX_ANCHOR_SAMPLES(log_samples) | + S_028804_PS_ITER_SAMPLES(log_ps_iter_samples) | + S_028804_MASK_EXPORT_NUM_SAMPLES(log_samples) | + S_028804_ALPHA_TO_MASK_NUM_SAMPLES(log_samples) | + S_028804_HIGH_QUALITY_INTERSECTIONS(1) | + S_028804_STATIC_ANCHOR_ASSOCIATIONS(1)); + r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, + EG_S_028A4C_PS_ITER_SAMPLE(ps_iter_samples > 1)); + } else if (overrast_samples > 1) { + r600_write_context_reg(cs, CM_R_028804_DB_EQAA, + S_028804_HIGH_QUALITY_INTERSECTIONS(1) | + S_028804_STATIC_ANCHOR_ASSOCIATIONS(1) | + S_028804_OVERRASTERIZATION_AMOUNT(log_samples)); + r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, 0); + } } else { r600_write_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 */ diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h index 43efaa34b4c..a08d08cdf14 100644 --- a/src/gallium/drivers/radeon/r600_pipe_common.h +++ b/src/gallium/drivers/radeon/r600_pipe_common.h @@ -526,7 +526,7 @@ void cayman_get_sample_position(struct pipe_context *ctx, unsigned sample_count, void cayman_init_msaa(struct pipe_context *ctx); void cayman_emit_msaa_sample_locs(struct radeon_winsys_cs *cs, int nr_samples); void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, - int ps_iter_samples); + int ps_iter_samples, int overrast_samples); /* Inline helpers. */ diff --git a/src/gallium/drivers/radeon/r600d_common.h b/src/gallium/drivers/radeon/r600d_common.h index ba29fd0c2d6..74c8d8782a6 100644 --- a/src/gallium/drivers/radeon/r600d_common.h +++ b/src/gallium/drivers/radeon/r600d_common.h @@ -177,6 +177,8 @@ #define S_028804_INTERPOLATE_SRC_Z(x) (((x) & 0x1) << 19) #define S_028804_STATIC_ANCHOR_ASSOCIATIONS(x) (((x) & 0x1) << 20) #define S_028804_ALPHA_TO_MASK_EQAA_DISABLE(x) (((x) & 0x1) << 21) +#define S_028804_OVERRASTERIZATION_AMOUNT(x) (((x) & 0x7) << 24) +#define S_028804_ENABLE_POSTZ_OVERRASTERIZATION(x) (((x) & 0x1) << 27) #define CM_R_028BDC_PA_SC_LINE_CNTL 0x28bdc #define S_028BDC_EXPAND_LINE_WIDTH(x) (((x) & 0x1) << 9) #define G_028BDC_EXPAND_LINE_WIDTH(x) (((x) >> 9) & 0x1) diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 5de31c03192..b20042ce831 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -2206,7 +2206,7 @@ static void si_emit_msaa_config(struct r600_common_context *rctx, struct r600_at struct radeon_winsys_cs *cs = sctx->b.rings.gfx.cs; cayman_emit_msaa_config(cs, sctx->framebuffer.nr_samples, - sctx->ps_iter_samples); + sctx->ps_iter_samples, 0); } const struct r600_atom si_atom_msaa_config = { si_emit_msaa_config, 10 }; /* number of CS dwords */