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draw: use tgsi transform prolog/epilog callbacks in AA point code
This simplifies the code and makes it a little easier to understand. Reviewed-by: Charmaine Lee <charmainel@vmware.com>
This commit is contained in:
Brian Paul
parent
9e0160fc58
commit
d77c0a2b52
1 changed files with 324 additions and 313 deletions
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@ -121,7 +121,6 @@ struct aa_transform_context {
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int colorOutput; /**< which output is the primary color */
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int maxInput, maxGeneric; /**< max input index found */
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int tmp0, colorTemp; /**< temp registers */
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boolean firstInstruction;
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};
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@ -161,325 +160,336 @@ aa_transform_decl(struct tgsi_transform_context *ctx,
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/**
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* TGSI instruction transform callback.
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* TGSI transform callback.
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* Insert new declarations and instructions before first instruction.
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*/
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static void
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aa_transform_prolog(struct tgsi_transform_context *ctx)
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{
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/* emit our new declarations before the first instruction */
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struct aa_transform_context *aactx = (struct aa_transform_context *) ctx;
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struct tgsi_full_instruction newInst;
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struct tgsi_full_declaration decl;
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const int texInput = aactx->maxInput + 1;
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int tmp0;
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uint i;
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/* find two free temp regs */
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for (i = 0; i < 32; i++) {
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if ((aactx->tempsUsed & (1 << i)) == 0) {
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/* found a free temp */
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if (aactx->tmp0 < 0)
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aactx->tmp0 = i;
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else if (aactx->colorTemp < 0)
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aactx->colorTemp = i;
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else
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break;
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}
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}
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assert(aactx->colorTemp != aactx->tmp0);
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tmp0 = aactx->tmp0;
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/* declare new generic input/texcoord */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_INPUT;
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/* XXX this could be linear... */
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decl.Declaration.Interpolate = 1;
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decl.Declaration.Semantic = 1;
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decl.Semantic.Name = TGSI_SEMANTIC_GENERIC;
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decl.Semantic.Index = aactx->maxGeneric + 1;
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decl.Range.First =
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decl.Range.Last = texInput;
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decl.Interp.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE;
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ctx->emit_declaration(ctx, &decl);
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/* declare new temp regs */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_TEMPORARY;
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decl.Range.First =
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decl.Range.Last = tmp0;
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ctx->emit_declaration(ctx, &decl);
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_TEMPORARY;
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decl.Range.First =
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decl.Range.Last = aactx->colorTemp;
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ctx->emit_declaration(ctx, &decl);
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/*
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* Emit code to compute fragment coverage, kill if outside point radius
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*
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* Temp reg0 usage:
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* t0.x = distance of fragment from center point
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* t0.y = boolean, is t0.x > 1.0, also misc temp usage
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* t0.z = temporary for computing 1/(1-k) value
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* t0.w = final coverage value
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*/
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/* MUL t0.xy, tex, tex; # compute x^2, y^2 */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XY;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_INPUT;
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newInst.Src[0].Register.Index = texInput;
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newInst.Src[1].Register.File = TGSI_FILE_INPUT;
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newInst.Src[1].Register.Index = texInput;
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ctx->emit_instruction(ctx, &newInst);
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/* ADD t0.x, t0.x, t0.y; # x^2 + y^2 */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_ADD;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_X;
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newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[1].Register.Index = tmp0;
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newInst.Src[1].Register.SwizzleX = TGSI_SWIZZLE_Y;
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ctx->emit_instruction(ctx, &newInst);
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#if NORMALIZE /* OPTIONAL normalization of length */
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/* RSQ t0.x, t0.x; */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_RSQ;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
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newInst.Instruction.NumSrcRegs = 1;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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ctx->emit_instruction(ctx, &newInst);
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/* RCP t0.x, t0.x; */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_RCP;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
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newInst.Instruction.NumSrcRegs = 1;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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ctx->emit_instruction(ctx, &newInst);
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#endif
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/* SGT t0.y, t0.xxxx, tex.wwww; # bool b = d > 1 (NOTE tex.w == 1) */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_SGT;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_X;
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newInst.Src[1].Register.File = TGSI_FILE_INPUT;
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newInst.Src[1].Register.Index = texInput;
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newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_W;
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ctx->emit_instruction(ctx, &newInst);
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/* KILL_IF -tmp0.yyyy; # if -tmp0.y < 0, KILL */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_KILL_IF;
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newInst.Instruction.NumDstRegs = 0;
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newInst.Instruction.NumSrcRegs = 1;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.Negate = 1;
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ctx->emit_instruction(ctx, &newInst);
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/* compute coverage factor = (1-d)/(1-k) */
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/* SUB t0.z, tex.w, tex.z; # m = 1 - k */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_SUB;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Z;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_INPUT;
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newInst.Src[0].Register.Index = texInput;
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newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_W;
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newInst.Src[1].Register.File = TGSI_FILE_INPUT;
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newInst.Src[1].Register.Index = texInput;
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newInst.Src[1].Register.SwizzleZ = TGSI_SWIZZLE_Z;
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ctx->emit_instruction(ctx, &newInst);
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/* RCP t0.z, t0.z; # t0.z = 1 / m */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_RCP;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Z;
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newInst.Instruction.NumSrcRegs = 1;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Z;
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ctx->emit_instruction(ctx, &newInst);
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/* SUB t0.y, 1, t0.x; # d = 1 - d */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_SUB;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_INPUT;
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newInst.Src[0].Register.Index = texInput;
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newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_W;
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newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[1].Register.Index = tmp0;
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newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_X;
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ctx->emit_instruction(ctx, &newInst);
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/* MUL t0.w, t0.y, t0.z; # coverage = d * m */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
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newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[1].Register.Index = tmp0;
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newInst.Src[1].Register.SwizzleW = TGSI_SWIZZLE_Z;
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ctx->emit_instruction(ctx, &newInst);
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/* SLE t0.y, t0.x, tex.z; # bool b = distance <= k */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_SLE;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_X;
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newInst.Src[1].Register.File = TGSI_FILE_INPUT;
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newInst.Src[1].Register.Index = texInput;
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newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_Z;
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ctx->emit_instruction(ctx, &newInst);
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/* CMP t0.w, -t0.y, tex.w, t0.w;
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* # if -t0.y < 0 then
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* t0.w = 1
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* else
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* t0.w = t0.w
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*/
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_CMP;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Dst[0].Register.Index = tmp0;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
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newInst.Instruction.NumSrcRegs = 3;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = tmp0;
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newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
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newInst.Src[0].Register.Negate = 1;
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newInst.Src[1].Register.File = TGSI_FILE_INPUT;
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newInst.Src[1].Register.Index = texInput;
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newInst.Src[1].Register.SwizzleX = TGSI_SWIZZLE_W;
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newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_W;
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newInst.Src[1].Register.SwizzleZ = TGSI_SWIZZLE_W;
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newInst.Src[1].Register.SwizzleW = TGSI_SWIZZLE_W;
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newInst.Src[2].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[2].Register.Index = tmp0;
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newInst.Src[2].Register.SwizzleX = TGSI_SWIZZLE_W;
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newInst.Src[2].Register.SwizzleY = TGSI_SWIZZLE_W;
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newInst.Src[2].Register.SwizzleZ = TGSI_SWIZZLE_W;
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newInst.Src[2].Register.SwizzleW = TGSI_SWIZZLE_W;
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ctx->emit_instruction(ctx, &newInst);
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}
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/**
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* TGSI transform callback.
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* Insert new instructions before the END instruction.
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*/
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static void
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aa_transform_epilog(struct tgsi_transform_context *ctx)
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{
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/* emit our new declarations before the first instruction */
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struct aa_transform_context *aactx = (struct aa_transform_context *) ctx;
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struct tgsi_full_instruction newInst;
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/* add alpha modulation code at tail of program */
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/* MOV result.color.xyz, colorTemp; */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_MOV;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_OUTPUT;
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newInst.Dst[0].Register.Index = aactx->colorOutput;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZ;
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newInst.Instruction.NumSrcRegs = 1;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = aactx->colorTemp;
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ctx->emit_instruction(ctx, &newInst);
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/* MUL result.color.w, colorTemp, tmp0.w; */
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newInst = tgsi_default_full_instruction();
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newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
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newInst.Instruction.NumDstRegs = 1;
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newInst.Dst[0].Register.File = TGSI_FILE_OUTPUT;
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newInst.Dst[0].Register.Index = aactx->colorOutput;
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newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
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newInst.Instruction.NumSrcRegs = 2;
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newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[0].Register.Index = aactx->colorTemp;
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newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
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newInst.Src[1].Register.Index = aactx->tmp0;
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ctx->emit_instruction(ctx, &newInst);
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}
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/**
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* TGSI transform callback.
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* Called per instruction.
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* Replace writes to result.color w/ a temp reg.
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* Upon END instruction, insert texture sampling code for antialiasing.
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*/
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static void
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aa_transform_inst(struct tgsi_transform_context *ctx,
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struct tgsi_full_instruction *inst)
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{
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struct aa_transform_context *aactx = (struct aa_transform_context *) ctx;
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struct tgsi_full_instruction newInst;
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unsigned i;
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if (aactx->firstInstruction) {
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/* emit our new declarations before the first instruction */
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struct tgsi_full_declaration decl;
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const int texInput = aactx->maxInput + 1;
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int tmp0;
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uint i;
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/* find two free temp regs */
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for (i = 0; i < 32; i++) {
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if ((aactx->tempsUsed & (1 << i)) == 0) {
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/* found a free temp */
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if (aactx->tmp0 < 0)
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aactx->tmp0 = i;
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else if (aactx->colorTemp < 0)
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aactx->colorTemp = i;
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else
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break;
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}
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}
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assert(aactx->colorTemp != aactx->tmp0);
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tmp0 = aactx->tmp0;
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/* declare new generic input/texcoord */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_INPUT;
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/* XXX this could be linear... */
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decl.Declaration.Interpolate = 1;
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decl.Declaration.Semantic = 1;
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decl.Semantic.Name = TGSI_SEMANTIC_GENERIC;
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decl.Semantic.Index = aactx->maxGeneric + 1;
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||||
decl.Range.First =
|
||||
decl.Range.Last = texInput;
|
||||
decl.Interp.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE;
|
||||
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 = tmp0;
|
||||
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;
|
||||
|
||||
|
||||
/*
|
||||
* Emit code to compute fragment coverage, kill if outside point radius
|
||||
*
|
||||
* Temp reg0 usage:
|
||||
* t0.x = distance of fragment from center point
|
||||
* t0.y = boolean, is t0.x > 1.0, also misc temp usage
|
||||
* t0.z = temporary for computing 1/(1-k) value
|
||||
* t0.w = final coverage value
|
||||
*/
|
||||
|
||||
/* MUL t0.xy, tex, tex; # compute x^2, y^2 */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XY;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[0].Register.Index = texInput;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[1].Register.Index = texInput;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* ADD t0.x, t0.x, t0.y; # x^2 + y^2 */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_ADD;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_X;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[1].Register.Index = tmp0;
|
||||
newInst.Src[1].Register.SwizzleX = TGSI_SWIZZLE_Y;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
#if NORMALIZE /* OPTIONAL normalization of length */
|
||||
/* RSQ t0.x, t0.x; */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_RSQ;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
|
||||
newInst.Instruction.NumSrcRegs = 1;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* RCP t0.x, t0.x; */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_RCP;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_X;
|
||||
newInst.Instruction.NumSrcRegs = 1;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
#endif
|
||||
|
||||
/* SGT t0.y, t0.xxxx, tex.wwww; # bool b = d > 1 (NOTE tex.w == 1) */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_SGT;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_X;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[1].Register.Index = texInput;
|
||||
newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_W;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* KILL_IF -tmp0.yyyy; # if -tmp0.y < 0, KILL */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_KILL_IF;
|
||||
newInst.Instruction.NumDstRegs = 0;
|
||||
newInst.Instruction.NumSrcRegs = 1;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.Negate = 1;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
|
||||
/* compute coverage factor = (1-d)/(1-k) */
|
||||
|
||||
/* SUB t0.z, tex.w, tex.z; # m = 1 - k */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_SUB;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Z;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[0].Register.Index = texInput;
|
||||
newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_W;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[1].Register.Index = texInput;
|
||||
newInst.Src[1].Register.SwizzleZ = TGSI_SWIZZLE_Z;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* RCP t0.z, t0.z; # t0.z = 1 / m */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_RCP;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Z;
|
||||
newInst.Instruction.NumSrcRegs = 1;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Z;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* SUB t0.y, 1, t0.x; # d = 1 - d */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_SUB;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[0].Register.Index = texInput;
|
||||
newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_W;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[1].Register.Index = tmp0;
|
||||
newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_X;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* MUL t0.w, t0.y, t0.z; # coverage = d * m */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[1].Register.Index = tmp0;
|
||||
newInst.Src[1].Register.SwizzleW = TGSI_SWIZZLE_Z;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* SLE t0.y, t0.x, tex.z; # bool b = distance <= k */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_SLE;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_Y;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_X;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[1].Register.Index = texInput;
|
||||
newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_Z;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* CMP t0.w, -t0.y, tex.w, t0.w;
|
||||
* # if -t0.y < 0 then
|
||||
* t0.w = 1
|
||||
* else
|
||||
* t0.w = t0.w
|
||||
*/
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_CMP;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Dst[0].Register.Index = tmp0;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
|
||||
newInst.Instruction.NumSrcRegs = 3;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = tmp0;
|
||||
newInst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_Y;
|
||||
newInst.Src[0].Register.Negate = 1;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_INPUT;
|
||||
newInst.Src[1].Register.Index = texInput;
|
||||
newInst.Src[1].Register.SwizzleX = TGSI_SWIZZLE_W;
|
||||
newInst.Src[1].Register.SwizzleY = TGSI_SWIZZLE_W;
|
||||
newInst.Src[1].Register.SwizzleZ = TGSI_SWIZZLE_W;
|
||||
newInst.Src[1].Register.SwizzleW = TGSI_SWIZZLE_W;
|
||||
newInst.Src[2].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[2].Register.Index = tmp0;
|
||||
newInst.Src[2].Register.SwizzleX = TGSI_SWIZZLE_W;
|
||||
newInst.Src[2].Register.SwizzleY = TGSI_SWIZZLE_W;
|
||||
newInst.Src[2].Register.SwizzleZ = TGSI_SWIZZLE_W;
|
||||
newInst.Src[2].Register.SwizzleW = TGSI_SWIZZLE_W;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
}
|
||||
|
||||
if (inst->Instruction.Opcode == TGSI_OPCODE_END) {
|
||||
/* add alpha modulation code at tail of program */
|
||||
|
||||
/* MOV result.color.xyz, colorTemp; */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_MOV;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_OUTPUT;
|
||||
newInst.Dst[0].Register.Index = aactx->colorOutput;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZ;
|
||||
newInst.Instruction.NumSrcRegs = 1;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = aactx->colorTemp;
|
||||
ctx->emit_instruction(ctx, &newInst);
|
||||
|
||||
/* MUL result.color.w, colorTemp, tmp0.w; */
|
||||
newInst = tgsi_default_full_instruction();
|
||||
newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
|
||||
newInst.Instruction.NumDstRegs = 1;
|
||||
newInst.Dst[0].Register.File = TGSI_FILE_OUTPUT;
|
||||
newInst.Dst[0].Register.Index = aactx->colorOutput;
|
||||
newInst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_W;
|
||||
newInst.Instruction.NumSrcRegs = 2;
|
||||
newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[0].Register.Index = aactx->colorTemp;
|
||||
newInst.Src[1].Register.File = TGSI_FILE_TEMPORARY;
|
||||
newInst.Src[1].Register.Index = aactx->tmp0;
|
||||
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;
|
||||
}
|
||||
/* Not an END instruction.
|
||||
* 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;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -511,7 +521,8 @@ generate_aapoint_fs(struct aapoint_stage *aapoint)
|
|||
transform.maxGeneric = -1;
|
||||
transform.colorTemp = -1;
|
||||
transform.tmp0 = -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;
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue