From 1a21e36b6818991ced32d0e3d1acc1fea0d936ce Mon Sep 17 00:00:00 2001 From: Christoph Bumiller Date: Thu, 24 May 2012 21:18:22 +0200 Subject: [PATCH] nvc0: optimize blend cso by checking which by-RT data actually differs Can save about 200 bytes of command buffer space. --- src/gallium/drivers/nvc0/nvc0_state.c | 159 ++++++++++++++++++++-------------- 1 file changed, 94 insertions(+), 65 deletions(-) diff --git a/src/gallium/drivers/nvc0/nvc0_state.c b/src/gallium/drivers/nvc0/nvc0_state.c index 01bd5ce..cce2a48 100644 --- a/src/gallium/drivers/nvc0/nvc0_state.c +++ b/src/gallium/drivers/nvc0/nvc0_state.c @@ -86,77 +86,106 @@ static void * nvc0_blend_state_create(struct pipe_context *pipe, const struct pipe_blend_state *cso) { - struct nvc0_blend_stateobj *so = CALLOC_STRUCT(nvc0_blend_stateobj); - int i; - uint32_t ms; + struct nvc0_blend_stateobj *so = CALLOC_STRUCT(nvc0_blend_stateobj); + int i; + int r; /* reference */ + uint32_t ms; + uint8_t blend_en = 0; + boolean indep_masks = FALSE; + boolean indep_funcs = FALSE; - so->pipe = *cso; + so->pipe = *cso; - SB_IMMED_3D(so, BLEND_INDEPENDENT, cso->independent_blend_enable); - - if (!cso->logicop_enable) - SB_IMMED_3D(so, LOGIC_OP_ENABLE, 0); - - if (cso->logicop_enable) { - SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2); - SB_DATA (so, 1); - SB_DATA (so, nvgl_logicop_func(cso->logicop_func)); - - SB_IMMED_3D(so, MACRO_BLEND_ENABLES, 0); - } else - if (!cso->independent_blend_enable) { - SB_IMMED_3D(so, - MACRO_BLEND_ENABLES, cso->rt[0].blend_enable ? 0xff : 0); - - if (cso->rt[0].blend_enable) { - SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5); - SB_DATA (so, nvgl_blend_eqn(cso->rt[0].rgb_func)); - SB_DATA (so, nvc0_blend_fac(cso->rt[0].rgb_src_factor)); - SB_DATA (so, nvc0_blend_fac(cso->rt[0].rgb_dst_factor)); - SB_DATA (so, nvgl_blend_eqn(cso->rt[0].alpha_func)); - SB_DATA (so, nvc0_blend_fac(cso->rt[0].alpha_src_factor)); - SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1); - SB_DATA (so, nvc0_blend_fac(cso->rt[0].alpha_dst_factor)); - } - - SB_IMMED_3D(so, COLOR_MASK_COMMON, 1); - SB_BEGIN_3D(so, COLOR_MASK(0), 1); - SB_DATA (so, nvc0_colormask(cso->rt[0].colormask)); - } else { - uint8_t en = 0; - - for (i = 0; i < 8; ++i) { - if (!cso->rt[i].blend_enable) - continue; - en |= 1 << i; - - SB_BEGIN_3D(so, IBLEND_EQUATION_RGB(i), 6); - SB_DATA (so, nvgl_blend_eqn(cso->rt[i].rgb_func)); - SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_src_factor)); - SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_dst_factor)); - SB_DATA (so, nvgl_blend_eqn(cso->rt[i].alpha_func)); - SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_src_factor)); - SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_dst_factor)); - } - SB_IMMED_3D(so, MACRO_BLEND_ENABLES, en); - - SB_IMMED_3D(so, COLOR_MASK_COMMON, 0); - SB_BEGIN_3D(so, COLOR_MASK(0), 8); - for (i = 0; i < 8; ++i) + /* check which states actually have differing values */ + if (cso->independent_blend_enable) { + for (r = 0; r < 8 && !cso->rt[r].blend_enable; ++r); + blend_en |= 1 << r; + for (i = r + 1; i < 8; ++i) { + if (!cso->rt[i].blend_enable) + continue; + blend_en |= 1 << i; + if (cso->rt[i].rgb_func != cso->rt[r].rgb_func || + cso->rt[i].rgb_src_factor != cso->rt[r].rgb_src_factor || + cso->rt[i].rgb_dst_factor != cso->rt[r].rgb_dst_factor || + cso->rt[i].alpha_func != cso->rt[r].alpha_func || + cso->rt[i].alpha_src_factor != cso->rt[r].alpha_src_factor || + cso->rt[i].alpha_dst_factor != cso->rt[r].alpha_dst_factor) { + indep_funcs = TRUE; + break; + } + } + for (; i < 8; ++i) + blend_en |= (cso->rt[i].blend_enable ? 1 : 0) << i; + + for (i = 1; i < 8; ++i) { + if (cso->rt[i].colormask != cso->rt[0].colormask) { + indep_masks = TRUE; + break; + } + } + } else { + r = 0; + if (cso->rt[0].blend_enable) + blend_en = 0xff; + } + + if (cso->logicop_enable) { + SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2); + SB_DATA (so, 1); + SB_DATA (so, nvgl_logicop_func(cso->logicop_func)); + + SB_IMMED_3D(so, MACRO_BLEND_ENABLES, 0); + } else { + SB_IMMED_3D(so, LOGIC_OP_ENABLE, 0); + + SB_IMMED_3D(so, BLEND_INDEPENDENT, indep_funcs); + SB_IMMED_3D(so, MACRO_BLEND_ENABLES, blend_en); + if (indep_funcs) { + for (i = 0; i < 8; ++i) { + if (cso->rt[i].blend_enable) { + SB_BEGIN_3D(so, IBLEND_EQUATION_RGB(i), 6); + SB_DATA (so, nvgl_blend_eqn(cso->rt[i].rgb_func)); + SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_src_factor)); + SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_dst_factor)); + SB_DATA (so, nvgl_blend_eqn(cso->rt[i].alpha_func)); + SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_src_factor)); + SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_dst_factor)); + } + } + } else + if (blend_en) { + SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5); + SB_DATA (so, nvgl_blend_eqn(cso->rt[r].rgb_func)); + SB_DATA (so, nvc0_blend_fac(cso->rt[r].rgb_src_factor)); + SB_DATA (so, nvc0_blend_fac(cso->rt[r].rgb_dst_factor)); + SB_DATA (so, nvgl_blend_eqn(cso->rt[r].alpha_func)); + SB_DATA (so, nvc0_blend_fac(cso->rt[r].alpha_src_factor)); + SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1); + SB_DATA (so, nvc0_blend_fac(cso->rt[r].alpha_dst_factor)); + } + + SB_IMMED_3D(so, COLOR_MASK_COMMON, !indep_masks); + if (indep_masks) { + SB_BEGIN_3D(so, COLOR_MASK(0), 8); + for (i = 0; i < 8; ++i) SB_DATA(so, nvc0_colormask(cso->rt[i].colormask)); - } + } else { + SB_BEGIN_3D(so, COLOR_MASK(0), 1); + SB_DATA (so, nvc0_colormask(cso->rt[0].colormask)); + } + } - ms = 0; - if (cso->alpha_to_coverage) - ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_COVERAGE; - if (cso->alpha_to_one) - ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_ONE; + ms = 0; + if (cso->alpha_to_coverage) + ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_COVERAGE; + if (cso->alpha_to_one) + ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_ONE; - SB_BEGIN_3D(so, MULTISAMPLE_CTRL, 1); - SB_DATA (so, ms); + SB_BEGIN_3D(so, MULTISAMPLE_CTRL, 1); + SB_DATA (so, ms); - assert(so->size <= (sizeof(so->state) / sizeof(so->state[0]))); - return so; + assert(so->size <= (sizeof(so->state) / sizeof(so->state[0]))); + return so; } static void -- 2.7.4