From 453ea2d309c0314bea8a209f536e2b3c2c4d92c6 Mon Sep 17 00:00:00 2001 From: Vadim Girlin Date: Sun, 13 Oct 2013 19:53:54 +0400 Subject: radeonsi: pass alpha_ref value to PS in the user sgpr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently it's hardcoded in the shader, so every change requires compilation of the shader variant, killing the performance in Serious Sam 3 and probably other apps. This patch passes alpha_ref in the user sgpr and removes it from the shader key. Signed-off-by: Vadim Girlin Reviewed-by: Michel Dänzer --- src/gallium/drivers/radeonsi/radeonsi_shader.c | 8 ++++-- src/gallium/drivers/radeonsi/radeonsi_shader.h | 39 +++++++++++++------------- src/gallium/drivers/radeonsi/si_state.c | 7 ++--- 3 files changed, 29 insertions(+), 25 deletions(-) (limited to 'src/gallium/drivers') diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c index 88fc0400a83..3aa271ea832 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.c +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c @@ -570,11 +570,14 @@ static void si_alpha_test(struct lp_build_tgsi_context *bld_base, if (si_shader_ctx->shader->key.ps.alpha_func != PIPE_FUNC_NEVER) { LLVMValueRef out_ptr = si_shader_ctx->radeon_bld.soa.outputs[index][3]; + LLVMValueRef alpha_ref = LLVMGetParam(si_shader_ctx->radeon_bld.main_fn, + SI_PARAM_ALPHA_REF); + LLVMValueRef alpha_pass = lp_build_cmp(&bld_base->base, si_shader_ctx->shader->key.ps.alpha_func, LLVMBuildLoad(gallivm->builder, out_ptr, ""), - lp_build_const_float(gallivm, si_shader_ctx->shader->key.ps.alpha_ref)); + alpha_ref); LLVMValueRef arg = lp_build_select(&bld_base->base, alpha_pass, @@ -1569,7 +1572,7 @@ static void create_function(struct si_shader_context *si_shader_ctx) { struct lp_build_tgsi_context *bld_base = &si_shader_ctx->radeon_bld.soa.bld_base; struct gallivm_state *gallivm = bld_base->base.gallivm; - LLVMTypeRef params[20], f32, i8, i32, v2i32, v3i32; + LLVMTypeRef params[21], f32, i8, i32, v2i32, v3i32; unsigned i, last_sgpr, num_params; i8 = LLVMInt8TypeInContext(gallivm->context); @@ -1614,6 +1617,7 @@ static void create_function(struct si_shader_context *si_shader_ctx) break; case TGSI_PROCESSOR_FRAGMENT: + params[SI_PARAM_ALPHA_REF] = f32; params[SI_PARAM_PRIM_MASK] = i32; last_sgpr = SI_PARAM_PRIM_MASK; params[SI_PARAM_PERSP_SAMPLE] = v2i32; diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.h b/src/gallium/drivers/radeonsi/radeonsi_shader.h index 1db8bb8d8ee..c9e851a899c 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.h +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.h @@ -37,9 +37,10 @@ #define SI_SGPR_VERTEX_BUFFER 6 /* VS only */ #define SI_SGPR_SO_BUFFER 8 /* VS only, stream-out */ #define SI_SGPR_START_INSTANCE 10 /* VS only */ +#define SI_SGPR_ALPHA_REF 6 /* PS only */ #define SI_VS_NUM_USER_SGPR 11 -#define SI_PS_NUM_USER_SGPR 6 +#define SI_PS_NUM_USER_SGPR 7 /* LLVM function parameter indices */ #define SI_PARAM_CONST 0 @@ -53,23 +54,24 @@ /* the other VS parameters are assigned dynamically */ /* PS only parameters */ -#define SI_PARAM_PRIM_MASK 3 -#define SI_PARAM_PERSP_SAMPLE 4 -#define SI_PARAM_PERSP_CENTER 5 -#define SI_PARAM_PERSP_CENTROID 6 -#define SI_PARAM_PERSP_PULL_MODEL 7 -#define SI_PARAM_LINEAR_SAMPLE 8 -#define SI_PARAM_LINEAR_CENTER 9 -#define SI_PARAM_LINEAR_CENTROID 10 -#define SI_PARAM_LINE_STIPPLE_TEX 11 -#define SI_PARAM_POS_X_FLOAT 12 -#define SI_PARAM_POS_Y_FLOAT 13 -#define SI_PARAM_POS_Z_FLOAT 14 -#define SI_PARAM_POS_W_FLOAT 15 -#define SI_PARAM_FRONT_FACE 16 -#define SI_PARAM_ANCILLARY 17 -#define SI_PARAM_SAMPLE_COVERAGE 18 -#define SI_PARAM_POS_FIXED_PT 19 +#define SI_PARAM_ALPHA_REF 3 +#define SI_PARAM_PRIM_MASK 4 +#define SI_PARAM_PERSP_SAMPLE 5 +#define SI_PARAM_PERSP_CENTER 6 +#define SI_PARAM_PERSP_CENTROID 7 +#define SI_PARAM_PERSP_PULL_MODEL 8 +#define SI_PARAM_LINEAR_SAMPLE 9 +#define SI_PARAM_LINEAR_CENTER 10 +#define SI_PARAM_LINEAR_CENTROID 11 +#define SI_PARAM_LINE_STIPPLE_TEX 12 +#define SI_PARAM_POS_X_FLOAT 13 +#define SI_PARAM_POS_Y_FLOAT 14 +#define SI_PARAM_POS_Z_FLOAT 15 +#define SI_PARAM_POS_W_FLOAT 16 +#define SI_PARAM_FRONT_FACE 17 +#define SI_PARAM_ANCILLARY 18 +#define SI_PARAM_SAMPLE_COVERAGE 19 +#define SI_PARAM_POS_FIXED_PT 20 struct si_shader_io { unsigned name; @@ -124,7 +126,6 @@ union si_shader_key { unsigned alpha_func:3; unsigned flatshade:1; unsigned alpha_to_one:1; - float alpha_ref; } ps; struct { unsigned instance_divisors[PIPE_MAX_ATTRIBS]; diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 3e771b297be..da7c3d0ab0c 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -744,6 +744,9 @@ static void *si_create_dsa_state(struct pipe_context *ctx, if (state->alpha.enabled) { dsa->alpha_func = state->alpha.func; dsa->alpha_ref = state->alpha.ref_value; + + si_pm4_set_reg(pm4, R_00B030_SPI_SHADER_USER_DATA_PS_0 + + SI_SGPR_ALPHA_REF * 4, fui(dsa->alpha_ref)); } else { dsa->alpha_func = PIPE_FUNC_ALWAYS; } @@ -2116,10 +2119,6 @@ static INLINE void si_shader_selector_key(struct pipe_context *ctx, rctx->framebuffer.cbufs[0] && util_format_is_pure_integer(rctx->framebuffer.cbufs[0]->texture->format)) key->ps.alpha_func = PIPE_FUNC_ALWAYS; - - if (key->ps.alpha_func != PIPE_FUNC_ALWAYS && - key->ps.alpha_func != PIPE_FUNC_NEVER) - key->ps.alpha_ref = rctx->queued.named.dsa->alpha_ref; } else { key->ps.alpha_func = PIPE_FUNC_ALWAYS; } -- cgit v1.2.3