[D3D12] Shader translator scalar ALU
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Triang3l
parent
40806c1b67
commit
60706077a3
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@ -71,6 +71,8 @@ void HlslShaderTranslator::Unindent() {
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void HlslShaderTranslator::StartTranslation() {
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// Common things.
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EmitSource(
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"#define XE_FLT_MAX 3.402823466e+38\n"
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"\n"
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"cbuffer xe_system_constants : register(b0) {\n"
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" float2 xe_viewport_inv_scale;\n"
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" uint xe_vertex_index_endian;\n"
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@ -1058,5 +1060,216 @@ void HlslShaderTranslator::ProcessVectorAluInstruction(
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EndPredicatedInstruction(conditional_emitted);
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}
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void HlslShaderTranslator::ProcessScalarAluInstruction(
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const ParsedAluInstruction& instr) {
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bool conditional_emitted = BeginPredicatedInstruction(
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instr.is_predicated, instr.predicate_condition);
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for (size_t i = 0; i < instr.operand_count; ++i) {
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EmitLoadOperand(i, instr.operands[i]);
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}
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switch (instr.scalar_opcode) {
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case AluScalarOpcode::kAdds:
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EmitSourceDepth("xe_ps = xe_src0.x + xe_src0.y;\n");
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break;
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case AluScalarOpcode::kAddsPrev:
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EmitSourceDepth("xe_ps += xe_src0.x;\n");
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break;
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case AluScalarOpcode::kMuls:
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EmitSourceDepth("xe_ps = xe_src0.x * xe_src0.y;\n");
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break;
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case AluScalarOpcode::kMulsPrev:
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EmitSourceDepth("xe_ps *= xe_src0.x;\n");
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break;
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case AluScalarOpcode::kMulsPrev2:
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EmitSourceDepth(
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"xe_ps = (xe_ps == -XE_FLT_MAX || (isinf(xe_ps) && xe_ps < 0.0)\n");
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EmitSourceDepth(
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" || isnan(xe_ps) || xe_src0.y <= 0.0 || isnan(xe_src0.y)) ?\n");
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EmitSourceDepth(" -XE_FLT_MAX : xe_src0.x * xe_ps;\n");
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break;
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case AluScalarOpcode::kMaxs:
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EmitSourceDepth("xe_ps = max(xe_src0.x, xe_src0.y);\n");
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break;
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case AluScalarOpcode::kMins:
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EmitSourceDepth("xe_ps = max(xe_src0.x, xe_src0.y);\n");
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break;
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case AluScalarOpcode::kSeqs:
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EmitSourceDepth("xe_ps = float(xe_src0.x == 0.0);\n");
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break;
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case AluScalarOpcode::kSgts:
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EmitSourceDepth("xe_ps = float(xe_src0.x > 0.0);\n");
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break;
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case AluScalarOpcode::kSges:
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EmitSourceDepth("xe_ps = float(xe_src0.x >= 0.0);\n");
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break;
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case AluScalarOpcode::kSnes:
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EmitSourceDepth("xe_ps = float(xe_src0.x != 0.0);\n");
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break;
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case AluScalarOpcode::kFrcs:
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EmitSourceDepth("xe_ps = frac(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kTruncs:
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EmitSourceDepth("xe_ps = trunc(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kFloors:
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EmitSourceDepth("xe_ps = floor(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kExp:
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EmitSourceDepth("xe_ps = exp2(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kLogc:
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EmitSourceDepth("xe_ps = log2(xe_src0.x);\n");
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EmitSourceDepth(
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"xe_ps = (isinf(xe_ps) && xe_ps < 0.0) ? -XE_FLT_MAX : ps;\n");
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break;
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case AluScalarOpcode::kLog:
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EmitSourceDepth("xe_ps = log2(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kRcpc:
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EmitSourceDepth(
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"xe_ps = clamp(rcp(xe_src0.x), -XE_FLT_MAX, XE_FLT_MAX);\n");
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break;
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case AluScalarOpcode::kRcpf:
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EmitSourceDepth("xe_ps = rcp(xe_src0.x);\n");
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EmitSourceDepth("xe_ps *= float(!isinf(xe_ps));\n");
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break;
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case AluScalarOpcode::kRcp:
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EmitSourceDepth("xe_ps = rcp(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kRsqc:
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EmitSourceDepth(
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"xe_ps = clamp(rsqrt(xe_src0.x), -XE_FLT_MAX, XE_FLT_MAX);\n");
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break;
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case AluScalarOpcode::kRsqf:
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EmitSourceDepth("xe_ps = rsqrt(xe_src0.x);\n");
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EmitSourceDepth("xe_ps *= float(!isinf(xe_ps));\n");
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break;
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case AluScalarOpcode::kRsq:
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EmitSourceDepth("xe_ps = rsqrt(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kMaxAs:
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EmitSourceDepth("xe_a0 = clamp(int(round(xe_src0.x)), -256, 255);\n");
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EmitSourceDepth("xe_ps = max(xe_src0.x, xe_src0.y);\n");
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break;
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case AluScalarOpcode::kMaxAf:
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EmitSourceDepth("xe_a0 = clamp(int(floor(xe_src0.x)), -256, 255);\n");
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EmitSourceDepth("xe_ps = max(xe_src0.x, xe_src0.y);\n");
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break;
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case AluScalarOpcode::kSubs:
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EmitSourceDepth("xe_ps = xe_src0.x - xe_src0.y;\n");
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break;
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case AluScalarOpcode::kSubsPrev:
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EmitSourceDepth("xe_ps = xe_src0.x - xe_ps;\n");
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break;
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case AluScalarOpcode::kSetpEq:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = xe_src0.x == 0.0;\n");
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EmitSourceDepth("xe_ps = float(!xe_p0);\n");
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break;
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case AluScalarOpcode::kSetpNe:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = xe_src0.x != 0.0;\n");
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EmitSourceDepth("xe_ps = float(!xe_p0);\n");
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break;
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case AluScalarOpcode::kSetpGt:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = xe_src0.x > 0.0;\n");
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EmitSourceDepth("xe_ps = float(!xe_p0);\n");
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break;
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case AluScalarOpcode::kSetpGe:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = xe_src0.x >= 0.0;\n");
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EmitSourceDepth("xe_ps = float(!xe_p0);\n");
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break;
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case AluScalarOpcode::kSetpInv:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = xe_src0.x == 1.0;\n");
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EmitSourceDepth(
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"xe_ps = float(!xe_p0) * (xe_src0.x == 0.0 ? 1.0 : xe_src0.x);\n");
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break;
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case AluScalarOpcode::kSetpPop:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_ps = max(xe_src0.x - 1.0, 0.0);\n");
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EmitSourceDepth("xe_p0 = xe_ps == 0.0;\n");
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break;
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case AluScalarOpcode::kSetpClr:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_ps = false;\n");
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EmitSourceDepth("xe_p0 = XE_FLT_MAX;\n");
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break;
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case AluScalarOpcode::kSetpRstr:
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cf_exec_pred_ = false;
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EmitSourceDepth("xe_p0 = src0.x == 0.0;\n");
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EmitSourceDepth("xe_ps = src0.x;\n");
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break;
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case AluScalarOpcode::kKillsEq:
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EmitSourceDepth("xe_ps = float(xe_src0.x == 0.0);\n");
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EmitSourceDepth("clip(-xe_ps);\n");
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break;
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case AluScalarOpcode::kKillsGt:
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EmitSourceDepth("xe_ps = float(xe_src0.x > 0.0);\n");
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EmitSourceDepth("clip(-xe_ps);\n");
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break;
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case AluScalarOpcode::kKillsGe:
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EmitSourceDepth("xe_ps = float(xe_src0.x >= 0.0);\n");
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EmitSourceDepth("clip(-xe_ps);\n");
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break;
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case AluScalarOpcode::kKillsNe:
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EmitSourceDepth("xe_ps = float(xe_src0.x != 0.0);\n");
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EmitSourceDepth("clip(-xe_ps);\n");
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break;
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case AluScalarOpcode::kKillsOne:
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EmitSourceDepth("xe_ps = float(xe_src0.x == 1.0);\n");
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EmitSourceDepth("clip(-xe_ps);\n");
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break;
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case AluScalarOpcode::kSqrt:
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EmitSourceDepth("xe_ps = float(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kMulsc0:
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case AluScalarOpcode::kMulsc1:
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EmitSourceDepth("xe_ps = xe_src0.x * xe_src1.x;\n");
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break;
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case AluScalarOpcode::kAddsc0:
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case AluScalarOpcode::kAddsc1:
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EmitSourceDepth("xe_ps = xe_src0.x + xe_src1.x;\n");
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break;
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case AluScalarOpcode::kSubsc0:
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case AluScalarOpcode::kSubsc1:
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EmitSourceDepth("xe_ps = xe_src0.x - xe_src1.x;\n");
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break;
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case AluScalarOpcode::kSin:
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EmitSourceDepth("xe_ps = sin(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kCos:
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EmitSourceDepth("xe_ps = cos(xe_src0.x);\n");
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break;
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case AluScalarOpcode::kRetainPrev:
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break;
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}
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EmitStoreResult(instr.result, true);
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EndPredicatedInstruction(conditional_emitted);
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}
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void HlslShaderTranslator::ProcessAluInstruction(
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const ParsedAluInstruction& instr) {
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EmitSourceDepth("// ");
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instr.Disassemble(&source_);
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switch (instr.type) {
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case ParsedAluInstruction::Type::kNop:
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break;
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case ParsedAluInstruction::Type::kVector:
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ProcessVectorAluInstruction(instr);
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break;
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case ParsedAluInstruction::Type::kScalar:
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ProcessScalarAluInstruction(instr);
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break;
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}
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}
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} // namespace gpu
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} // namespace xe
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