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-rw-r--r--src/video_core/shader/shader_jit_x64.cpp127
1 files changed, 73 insertions, 54 deletions
diff --git a/src/video_core/shader/shader_jit_x64.cpp b/src/video_core/shader/shader_jit_x64.cpp
index a8045d4b0..d3cfe109e 100644
--- a/src/video_core/shader/shader_jit_x64.cpp
+++ b/src/video_core/shader/shader_jit_x64.cpp
@@ -115,6 +115,8 @@ static const X64Reg SRC1 = XMM1;
static const X64Reg SRC2 = XMM2;
/// Loaded with the third swizzled source register, otherwise can be used as a scratch register
static const X64Reg SRC3 = XMM3;
+/// Additional scratch register
+static const X64Reg SCRATCH2 = XMM4;
/// Constant vector of [1.0f, 1.0f, 1.0f, 1.0f], used to efficiently set a vector to one
static const X64Reg ONE = XMM14;
/// Constant vector of [-0.f, -0.f, -0.f, -0.f], used to efficiently negate a vector with XOR
@@ -227,8 +229,8 @@ void JitCompiler::Compile_DestEnable(Instruction instr,X64Reg src) {
u8 mask = ((swiz.dest_mask & 1) << 3) | ((swiz.dest_mask & 8) >> 3) | ((swiz.dest_mask & 2) << 1) | ((swiz.dest_mask & 4) >> 1);
BLENDPS(SCRATCH, R(src), mask);
} else {
- MOVAPS(XMM4, R(src));
- UNPCKHPS(XMM4, R(SCRATCH)); // Unpack X/Y components of source and destination
+ MOVAPS(SCRATCH2, R(src));
+ UNPCKHPS(SCRATCH2, R(SCRATCH)); // Unpack X/Y components of source and destination
UNPCKLPS(SCRATCH, R(src)); // Unpack Z/W components of source and destination
// Compute selector to selectively copy source components to destination for SHUFPS instruction
@@ -236,7 +238,7 @@ void JitCompiler::Compile_DestEnable(Instruction instr,X64Reg src) {
((swiz.DestComponentEnabled(1) ? 3 : 2) << 2) |
((swiz.DestComponentEnabled(2) ? 0 : 1) << 4) |
((swiz.DestComponentEnabled(3) ? 2 : 3) << 6);
- SHUFPS(SCRATCH, R(XMM4), sel);
+ SHUFPS(SCRATCH, R(SCRATCH2), sel);
}
// Store dest back to memory
@@ -244,6 +246,19 @@ void JitCompiler::Compile_DestEnable(Instruction instr,X64Reg src) {
}
}
+void JitCompiler::Compile_SanitizedMul(Gen::X64Reg src1, Gen::X64Reg src2, Gen::X64Reg scratch) {
+ MOVAPS(scratch, R(src1));
+ CMPPS(scratch, R(src2), CMP_ORD);
+
+ MULPS(src1, R(src2));
+
+ MOVAPS(src2, R(src1));
+ CMPPS(src2, R(src2), CMP_UNORD);
+
+ XORPS(scratch, R(src2));
+ ANDPS(src1, R(scratch));
+}
+
void JitCompiler::Compile_EvaluateCondition(Instruction instr) {
// Note: NXOR is used below to check for equality
switch (instr.flow_control.op) {
@@ -307,21 +322,17 @@ void JitCompiler::Compile_DP3(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
- if (Common::GetCPUCaps().sse4_1) {
- DPPS(SRC1, R(SRC2), 0x7f);
- } else {
- MULPS(SRC1, R(SRC2));
+ Compile_SanitizedMul(SRC1, SRC2, SCRATCH);
- MOVAPS(SRC2, R(SRC1));
- SHUFPS(SRC2, R(SRC2), _MM_SHUFFLE(1, 1, 1, 1));
+ MOVAPS(SRC2, R(SRC1));
+ SHUFPS(SRC2, R(SRC2), _MM_SHUFFLE(1, 1, 1, 1));
- MOVAPS(SRC3, R(SRC1));
- SHUFPS(SRC3, R(SRC3), _MM_SHUFFLE(2, 2, 2, 2));
+ MOVAPS(SRC3, R(SRC1));
+ SHUFPS(SRC3, R(SRC3), _MM_SHUFFLE(2, 2, 2, 2));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 0, 0, 0));
- ADDPS(SRC1, R(SRC2));
- ADDPS(SRC1, R(SRC3));
- }
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 0, 0, 0));
+ ADDPS(SRC1, R(SRC2));
+ ADDPS(SRC1, R(SRC3));
Compile_DestEnable(instr, SRC1);
}
@@ -330,19 +341,15 @@ void JitCompiler::Compile_DP4(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
- if (Common::GetCPUCaps().sse4_1) {
- DPPS(SRC1, R(SRC2), 0xff);
- } else {
- MULPS(SRC1, R(SRC2));
+ Compile_SanitizedMul(SRC1, SRC2, SCRATCH);
- MOVAPS(SRC2, R(SRC1));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(2, 3, 0, 1)); // XYZW -> ZWXY
- ADDPS(SRC1, R(SRC2));
+ MOVAPS(SRC2, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(2, 3, 0, 1)); // XYZW -> ZWXY
+ ADDPS(SRC1, R(SRC2));
- MOVAPS(SRC2, R(SRC1));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3)); // XYZW -> WZYX
- ADDPS(SRC1, R(SRC2));
- }
+ MOVAPS(SRC2, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3)); // XYZW -> WZYX
+ ADDPS(SRC1, R(SRC2));
Compile_DestEnable(instr, SRC1);
}
@@ -359,23 +366,22 @@ void JitCompiler::Compile_DPH(Instruction instr) {
if (Common::GetCPUCaps().sse4_1) {
// Set 4th component to 1.0
BLENDPS(SRC1, R(ONE), 0x8); // 0b1000
- DPPS(SRC1, R(SRC2), 0xff);
} else {
- // Reverse to set the 4th component to 1.0
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
- MOVSS(SRC1, R(ONE));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
+ // Set 4th component to 1.0
+ MOVAPS(SCRATCH, R(SRC1));
+ UNPCKHPS(SCRATCH, R(ONE)); // XYZW, 1111 -> Z1__
+ UNPCKLPD(SRC1, R(SCRATCH)); // XYZW, Z1__ -> XYZ1
+ }
- MULPS(SRC1, R(SRC2));
+ Compile_SanitizedMul(SRC1, SRC2, SCRATCH);
- MOVAPS(SRC2, R(SRC1));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(2, 3, 0, 1)); // XYZW -> ZWXY
- ADDPS(SRC1, R(SRC2));
+ MOVAPS(SRC2, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(2, 3, 0, 1)); // XYZW -> ZWXY
+ ADDPS(SRC1, R(SRC2));
- MOVAPS(SRC2, R(SRC1));
- SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3)); // XYZW -> WZYX
- ADDPS(SRC1, R(SRC2));
- }
+ MOVAPS(SRC2, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3)); // XYZW -> WZYX
+ ADDPS(SRC1, R(SRC2));
Compile_DestEnable(instr, SRC1);
}
@@ -415,7 +421,7 @@ void JitCompiler::Compile_LG2(Instruction instr) {
void JitCompiler::Compile_MUL(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
- MULPS(SRC1, R(SRC2));
+ Compile_SanitizedMul(SRC1, SRC2, SCRATCH);
Compile_DestEnable(instr, SRC1);
}
@@ -465,6 +471,7 @@ void JitCompiler::Compile_FLR(Instruction instr) {
void JitCompiler::Compile_MAX(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
+ // SSE semantics match PICA200 ones: In case of NaN, SRC2 is returned.
MAXPS(SRC1, R(SRC2));
Compile_DestEnable(instr, SRC1);
}
@@ -472,6 +479,7 @@ void JitCompiler::Compile_MAX(Instruction instr) {
void JitCompiler::Compile_MIN(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
+ // SSE semantics match PICA200 ones: In case of NaN, SRC2 is returned.
MINPS(SRC1, R(SRC2));
Compile_DestEnable(instr, SRC1);
}
@@ -578,27 +586,42 @@ void JitCompiler::Compile_CALLU(Instruction instr) {
}
void JitCompiler::Compile_CMP(Instruction instr) {
+ using Op = Instruction::Common::CompareOpType::Op;
+ Op op_x = instr.common.compare_op.x;
+ Op op_y = instr.common.compare_op.y;
+
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
- static const u8 cmp[] = { CMP_EQ, CMP_NEQ, CMP_LT, CMP_LE, CMP_NLE, CMP_NLT };
+ // SSE doesn't have greater-than (GT) or greater-equal (GE) comparison operators. You need to
+ // emulate them by swapping the lhs and rhs and using LT and LE. NLT and NLE can't be used here
+ // because they don't match when used with NaNs.
+ static const u8 cmp[] = { CMP_EQ, CMP_NEQ, CMP_LT, CMP_LE, CMP_LT, CMP_LE };
+
+ bool invert_op_x = (op_x == Op::GreaterThan || op_x == Op::GreaterEqual);
+ Gen::X64Reg lhs_x = invert_op_x ? SRC2 : SRC1;
+ Gen::X64Reg rhs_x = invert_op_x ? SRC1 : SRC2;
- if (instr.common.compare_op.x == instr.common.compare_op.y) {
+ if (op_x == op_y) {
// Compare X-component and Y-component together
- CMPPS(SRC1, R(SRC2), cmp[instr.common.compare_op.x]);
+ CMPPS(lhs_x, R(rhs_x), cmp[op_x]);
+ MOVQ_xmm(R(COND0), lhs_x);
- MOVQ_xmm(R(COND0), SRC1);
MOV(64, R(COND1), R(COND0));
} else {
+ bool invert_op_y = (op_y == Op::GreaterThan || op_y == Op::GreaterEqual);
+ Gen::X64Reg lhs_y = invert_op_y ? SRC2 : SRC1;
+ Gen::X64Reg rhs_y = invert_op_y ? SRC1 : SRC2;
+
// Compare X-component
- MOVAPS(SCRATCH, R(SRC1));
- CMPSS(SCRATCH, R(SRC2), cmp[instr.common.compare_op.x]);
+ MOVAPS(SCRATCH, R(lhs_x));
+ CMPSS(SCRATCH, R(rhs_x), cmp[op_x]);
// Compare Y-component
- CMPPS(SRC1, R(SRC2), cmp[instr.common.compare_op.y]);
+ CMPPS(lhs_y, R(rhs_y), cmp[op_y]);
MOVQ_xmm(R(COND0), SCRATCH);
- MOVQ_xmm(R(COND1), SRC1);
+ MOVQ_xmm(R(COND1), lhs_y);
}
SHR(32, R(COND0), Imm8(31));
@@ -616,12 +639,8 @@ void JitCompiler::Compile_MAD(Instruction instr) {
Compile_SwizzleSrc(instr, 3, instr.mad.src3, SRC3);
}
- if (Common::GetCPUCaps().fma) {
- VFMADD213PS(SRC1, SRC2, R(SRC3));
- } else {
- MULPS(SRC1, R(SRC2));
- ADDPS(SRC1, R(SRC3));
- }
+ Compile_SanitizedMul(SRC1, SRC2, SCRATCH);
+ ADDPS(SRC1, R(SRC3));
Compile_DestEnable(instr, SRC1);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 12:02:29 +0200