From: Brian Paul Date: Fri, 19 Sep 2014 19:19:21 +0000 (-0600) Subject: draw: use tgsi transform prolog/epilog callbacks in AA line code X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6581aa441eef8fafc49a8770a0d82cf9d99b39b5;p=mesa.git draw: use tgsi transform prolog/epilog callbacks in AA line code Reviewed-by: Charmaine Lee --- diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c b/src/gallium/auxiliary/draw/draw_pipe_aaline.c index 8955762ce27..c8344dd427b 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_aaline.c +++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c @@ -140,7 +140,6 @@ struct aa_transform_context { int freeSampler; /** an available sampler for the pstipple */ int maxInput, maxGeneric; /**< max input index found */ int colorTemp, texTemp; /**< temp registers */ - boolean firstInstruction; }; @@ -197,80 +196,80 @@ free_bit(uint bitfield) /** - * TGSI instruction transform callback. - * Replace writes to result.color w/ a temp reg. - * Upon END instruction, insert texture sampling code for antialiasing. + * TGSI transform prolog callback. */ static void -aa_transform_inst(struct tgsi_transform_context *ctx, - struct tgsi_full_instruction *inst) +aa_transform_prolog(struct tgsi_transform_context *ctx) { struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + struct tgsi_full_declaration decl; + uint i; - if (aactx->firstInstruction) { - /* emit our new declarations before the first instruction */ - - struct tgsi_full_declaration decl; - uint i; - - /* find free sampler */ - aactx->freeSampler = free_bit(aactx->samplersUsed); - if (aactx->freeSampler >= PIPE_MAX_SAMPLERS) - aactx->freeSampler = PIPE_MAX_SAMPLERS - 1; - - /* find two free temp regs */ - for (i = 0; i < 32; i++) { - if ((aactx->tempsUsed & (1 << i)) == 0) { - /* found a free temp */ - if (aactx->colorTemp < 0) - aactx->colorTemp = i; - else if (aactx->texTemp < 0) - aactx->texTemp = i; - else - break; - } + /* find free sampler */ + aactx->freeSampler = free_bit(aactx->samplersUsed); + if (aactx->freeSampler >= PIPE_MAX_SAMPLERS) + aactx->freeSampler = PIPE_MAX_SAMPLERS - 1; + + /* find two free temp regs */ + for (i = 0; i < 32; i++) { + if ((aactx->tempsUsed & (1 << i)) == 0) { + /* found a free temp */ + if (aactx->colorTemp < 0) + aactx->colorTemp = i; + else if (aactx->texTemp < 0) + aactx->texTemp = i; + else + break; } - assert(aactx->colorTemp >= 0); - assert(aactx->texTemp >= 0); - - /* declare new generic input/texcoord */ - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_INPUT; - /* XXX this could be linear... */ - decl.Declaration.Interpolate = 1; - decl.Declaration.Semantic = 1; - decl.Semantic.Name = TGSI_SEMANTIC_GENERIC; - decl.Semantic.Index = aactx->maxGeneric + 1; - decl.Range.First = - decl.Range.Last = aactx->maxInput + 1; - decl.Interp.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE; - ctx->emit_declaration(ctx, &decl); - - /* declare new sampler */ - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_SAMPLER; - decl.Range.First = - decl.Range.Last = aactx->freeSampler; - ctx->emit_declaration(ctx, &decl); - - /* declare new temp regs */ - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_TEMPORARY; - decl.Range.First = - decl.Range.Last = aactx->texTemp; - ctx->emit_declaration(ctx, &decl); - - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_TEMPORARY; - decl.Range.First = - decl.Range.Last = aactx->colorTemp; - ctx->emit_declaration(ctx, &decl); - - aactx->firstInstruction = FALSE; } + assert(aactx->colorTemp >= 0); + assert(aactx->texTemp >= 0); + + /* declare new generic input/texcoord */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + /* XXX this could be linear... */ + decl.Declaration.Interpolate = 1; + decl.Declaration.Semantic = 1; + decl.Semantic.Name = TGSI_SEMANTIC_GENERIC; + decl.Semantic.Index = aactx->maxGeneric + 1; + decl.Range.First = + decl.Range.Last = aactx->maxInput + 1; + decl.Interp.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE; + ctx->emit_declaration(ctx, &decl); + + /* declare new sampler */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_SAMPLER; + decl.Range.First = + decl.Range.Last = aactx->freeSampler; + ctx->emit_declaration(ctx, &decl); + + /* declare new temp regs */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.Range.First = + decl.Range.Last = aactx->texTemp; + ctx->emit_declaration(ctx, &decl); + + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_TEMPORARY; + decl.Range.First = + decl.Range.Last = aactx->colorTemp; + ctx->emit_declaration(ctx, &decl); +} + - if (inst->Instruction.Opcode == TGSI_OPCODE_END && - aactx->colorOutput != -1) { +/** + * TGSI transform epilog callback. + */ +static void +aa_transform_epilog(struct tgsi_transform_context *ctx) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + + if (aactx->colorOutput != -1) { + /* insert texture sampling code for antialiasing. */ struct tgsi_full_instruction newInst; /* TEX */ @@ -286,7 +285,6 @@ aa_transform_inst(struct tgsi_transform_context *ctx, newInst.Src[0].Register.Index = aactx->maxInput + 1; newInst.Src[1].Register.File = TGSI_FILE_SAMPLER; newInst.Src[1].Register.Index = aactx->freeSampler; - ctx->emit_instruction(ctx, &newInst); /* MOV rgb */ @@ -314,31 +312,34 @@ aa_transform_inst(struct tgsi_transform_context *ctx, newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY; newInst.Src[1].Register.Index = aactx->texTemp; ctx->emit_instruction(ctx, &newInst); - - /* END */ - newInst = tgsi_default_full_instruction(); - newInst.Instruction.Opcode = TGSI_OPCODE_END; - newInst.Instruction.NumDstRegs = 0; - newInst.Instruction.NumSrcRegs = 0; - ctx->emit_instruction(ctx, &newInst); } - else { - /* Not an END instruction. - * Look for writes to result.color and replace with colorTemp reg. - */ - uint i; +} - for (i = 0; i < inst->Instruction.NumDstRegs; i++) { - struct tgsi_full_dst_register *dst = &inst->Dst[i]; - if (dst->Register.File == TGSI_FILE_OUTPUT && - dst->Register.Index == aactx->colorOutput) { - dst->Register.File = TGSI_FILE_TEMPORARY; - dst->Register.Index = aactx->colorTemp; - } - } - ctx->emit_instruction(ctx, inst); +/** + * TGSI instruction transform callback. + * Replace writes to result.color w/ a temp reg. + */ +static void +aa_transform_inst(struct tgsi_transform_context *ctx, + struct tgsi_full_instruction *inst) +{ + struct aa_transform_context *aactx = (struct aa_transform_context *) ctx; + uint i; + + /* + * Look for writes to result.color and replace with colorTemp reg. + */ + for (i = 0; i < inst->Instruction.NumDstRegs; i++) { + struct tgsi_full_dst_register *dst = &inst->Dst[i]; + if (dst->Register.File == TGSI_FILE_OUTPUT && + dst->Register.Index == aactx->colorOutput) { + dst->Register.File = TGSI_FILE_TEMPORARY; + dst->Register.Index = aactx->colorTemp; + } } + + ctx->emit_instruction(ctx, inst); } @@ -366,7 +367,8 @@ generate_aaline_fs(struct aaline_stage *aaline) transform.maxGeneric = -1; transform.colorTemp = -1; transform.texTemp = -1; - transform.firstInstruction = TRUE; + transform.base.prolog = aa_transform_prolog; + transform.base.epilog = aa_transform_epilog; transform.base.transform_instruction = aa_transform_inst; transform.base.transform_declaration = aa_transform_decl;