diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/radeonsi/driinfo_radeonsi.h | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_pipe.c | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_pipe.h | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 67 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.h | 1 |
5 files changed, 68 insertions, 4 deletions
diff --git a/src/gallium/drivers/radeonsi/driinfo_radeonsi.h b/src/gallium/drivers/radeonsi/driinfo_radeonsi.h index 8be85289a0c..989e5175cc0 100644 --- a/src/gallium/drivers/radeonsi/driinfo_radeonsi.h +++ b/src/gallium/drivers/radeonsi/driinfo_radeonsi.h @@ -2,4 +2,5 @@ DRI_CONF_SECTION_PERFORMANCE DRI_CONF_RADEONSI_ENABLE_SISCHED("false") DRI_CONF_RADEONSI_ASSUME_NO_Z_FIGHTS("false") + DRI_CONF_RADEONSI_COMMUTATIVE_BLEND_ADD("false") DRI_CONF_SECTION_END diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index d6de1525717..372bc56ce76 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -1050,6 +1050,8 @@ struct pipe_screen *radeonsi_screen_create(struct radeon_winsys *ws, !(sscreen->b.debug_flags & DBG_NO_OUT_OF_ORDER); sscreen->assume_no_z_fights = driQueryOptionb(config->options, "radeonsi_assume_no_z_fights"); + sscreen->commutative_blend_add = + driQueryOptionb(config->options, "radeonsi_commutative_blend_add"); sscreen->has_msaa_sample_loc_bug = (sscreen->b.family >= CHIP_POLARIS10 && sscreen->b.family <= CHIP_POLARIS12) || sscreen->b.family == CHIP_VEGA10 || diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h index 3d33e4f0ffa..ce6aa3be96b 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.h +++ b/src/gallium/drivers/radeonsi/si_pipe.h @@ -96,6 +96,7 @@ struct si_screen { bool has_draw_indirect_multi; bool has_out_of_order_rast; bool assume_no_z_fights; + bool commutative_blend_add; bool has_msaa_sample_loc_bug; bool dpbb_allowed; bool dfsm_allowed; diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 66228af1d23..96f9e444977 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -377,6 +377,48 @@ static uint32_t si_translate_blend_opt_factor(int blend_fact, bool is_alpha) } } +static void si_blend_check_commutativity(struct si_screen *sscreen, + struct si_state_blend *blend, + enum pipe_blend_func func, + enum pipe_blendfactor src, + enum pipe_blendfactor dst, + unsigned chanmask) +{ + /* Src factor is allowed when it does not depend on Dst */ + static const uint32_t src_allowed = + (1u << PIPE_BLENDFACTOR_ONE) | + (1u << PIPE_BLENDFACTOR_SRC_COLOR) | + (1u << PIPE_BLENDFACTOR_SRC_ALPHA) | + (1u << PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) | + (1u << PIPE_BLENDFACTOR_CONST_COLOR) | + (1u << PIPE_BLENDFACTOR_CONST_ALPHA) | + (1u << PIPE_BLENDFACTOR_SRC1_COLOR) | + (1u << PIPE_BLENDFACTOR_SRC1_ALPHA) | + (1u << PIPE_BLENDFACTOR_ZERO) | + (1u << PIPE_BLENDFACTOR_INV_SRC_COLOR) | + (1u << PIPE_BLENDFACTOR_INV_SRC_ALPHA) | + (1u << PIPE_BLENDFACTOR_INV_CONST_COLOR) | + (1u << PIPE_BLENDFACTOR_INV_CONST_ALPHA) | + (1u << PIPE_BLENDFACTOR_INV_SRC1_COLOR) | + (1u << PIPE_BLENDFACTOR_INV_SRC1_ALPHA); + + if (dst == PIPE_BLENDFACTOR_ONE && + (src_allowed & (1u << src))) { + /* Addition is commutative, but floating point addition isn't + * associative: subtle changes can be introduced via different + * rounding. + * + * Out-of-order is also non-deterministic, which means that + * this breaks OpenGL invariance requirements. So only enable + * out-of-order additive blending if explicitly allowed by a + * setting. + */ + if (func == PIPE_BLEND_MAX || func == PIPE_BLEND_MIN || + (func == PIPE_BLEND_ADD && sscreen->commutative_blend_add)) + blend->commutative_4bit |= chanmask; + } +} + /** * Get rid of DST in the blend factors by commuting the operands: * func(src * DST, dst * 0) ---> func(src * 0, dst * SRC) @@ -493,6 +535,11 @@ static void *si_create_blend_state_mode(struct pipe_context *ctx, continue; } + si_blend_check_commutativity(sctx->screen, blend, + eqRGB, srcRGB, dstRGB, 0x7 << (4 * i)); + si_blend_check_commutativity(sctx->screen, blend, + eqA, srcA, dstA, 0x8 << (4 * i)); + /* Blending optimizations for RB+. * These transformations don't change the behavior. * @@ -636,6 +683,7 @@ static void si_bind_blend_state(struct pipe_context *ctx, void *state) (!old_blend || (old_blend->blend_enable_4bit != blend->blend_enable_4bit || old_blend->cb_target_enabled_4bit != blend->cb_target_enabled_4bit || + old_blend->commutative_4bit != blend->commutative_4bit || old_blend->logicop_enable != blend->logicop_enable))) si_mark_atom_dirty(sctx, &sctx->msaa_config); } @@ -3208,12 +3256,23 @@ static bool si_out_of_order_rasterization(struct si_context *sctx) if (!colormask) return true; - bool blend_enabled = (colormask & blend->blend_enable_4bit) != 0; + unsigned blendmask = colormask & blend->blend_enable_4bit; - if (blend_enabled) - return false; /* TODO */ + if (blendmask) { + /* Only commutative blending. */ + if (blendmask & ~blend->commutative_4bit) + return false; + + if (!dsa_order_invariant.pass_set) + return false; + } + + if (colormask & ~blendmask) { + if (!dsa_order_invariant.pass_last) + return false; + } - return dsa_order_invariant.pass_last; + return true; } static void si_emit_msaa_config(struct si_context *sctx, struct r600_atom *atom) diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h index 4f14f89166d..4388ea99daf 100644 --- a/src/gallium/drivers/radeonsi/si_state.h +++ b/src/gallium/drivers/radeonsi/si_state.h @@ -55,6 +55,7 @@ struct si_state_blend { unsigned cb_target_enabled_4bit; unsigned blend_enable_4bit; unsigned need_src_alpha_4bit; + unsigned commutative_4bit; bool alpha_to_coverage:1; bool alpha_to_one:1; bool dual_src_blend:1; |