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PixelProgram.cpp
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PixelProgram.cpp
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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "PixelProgram.hpp"
#include "SamplerCore.hpp"
#include "Renderer/Primitive.hpp"
#include "Renderer/Renderer.hpp"
namespace sw
{
extern bool postBlendSRGB;
extern bool booleanFaceRegister;
extern bool halfIntegerCoordinates; // Pixel centers are not at integer coordinates
extern bool fullPixelPositionRegister;
PixelProgram::PixelProgram(const PixelProcessor::State &state, const PixelShader *shader) :
PixelRoutine(state, shader),
r(shader->indirectAddressableTemporaries),
aL(shader->getLimits().loops),
increment(shader->getLimits().loops),
iteration(shader->getLimits().loops),
callStack(shader->getLimits().stack)
{
auto limits = shader->getLimits();
ifFalseBlock.resize(limits.ifs);
loopRepTestBlock.resize(limits.loops);
loopRepEndBlock.resize(limits.loops);
labelBlock.resize(limits.maxLabel + 1);
isConditionalIf.resize(limits.ifs);
loopDepth = -1;
enableStack[0] = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
if(shader->containsBreakInstruction())
{
enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
}
if(shader->containsContinueInstruction())
{
enableContinue = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
}
}
void PixelProgram::setBuiltins(Int &x, Int &y, Float4(&z)[4], Float4 &w)
{
if(shader->getShaderModel() >= 0x0300)
{
if(shader->isVPosDeclared())
{
if(!halfIntegerCoordinates)
{
vPos.x = Float4(Float(x)) + Float4(0, 1, 0, 1);
vPos.y = Float4(Float(y)) + Float4(0, 0, 1, 1);
}
else
{
vPos.x = Float4(Float(x)) + Float4(0.5f, 1.5f, 0.5f, 1.5f);
vPos.y = Float4(Float(y)) + Float4(0.5f, 0.5f, 1.5f, 1.5f);
}
if(fullPixelPositionRegister)
{
vPos.z = z[0]; // FIXME: Centroid?
vPos.w = w; // FIXME: Centroid?
}
}
if(shader->isVFaceDeclared())
{
Float4 face = *Pointer<Float>(primitive + OFFSET(Primitive, area));
if(booleanFaceRegister)
{
face = As<Float4>(state.frontFaceCCW ? CmpNLT(face, Float4(0.0f)) : CmpLT(face, Float4(0.0f)));
}
vFace.x = face;
vFace.y = face;
vFace.z = face;
vFace.w = face;
}
}
}
void PixelProgram::applyShader(Int cMask[4])
{
enableIndex = 0;
stackIndex = 0;
if(shader->containsLeaveInstruction())
{
enableLeave = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
}
for(int i = 0; i < RENDERTARGETS; i++)
{
if(state.targetFormat[i] != FORMAT_NULL)
{
oC[i] = Vector4f(0.0f, 0.0f, 0.0f, 0.0f);
}
}
// Create all call site return blocks up front
for(size_t i = 0; i < shader->getLength(); i++)
{
const Shader::Instruction *instruction = shader->getInstruction(i);
Shader::Opcode opcode = instruction->opcode;
if(opcode == Shader::OPCODE_CALL || opcode == Shader::OPCODE_CALLNZ)
{
const Dst &dst = instruction->dst;
ASSERT(callRetBlock[dst.label].size() == dst.callSite);
callRetBlock[dst.label].push_back(Nucleus::createBasicBlock());
}
}
bool broadcastColor0 = true;
for(size_t i = 0; i < shader->getLength(); i++)
{
const Shader::Instruction *instruction = shader->getInstruction(i);
Shader::Opcode opcode = instruction->opcode;
if(opcode == Shader::OPCODE_DCL || opcode == Shader::OPCODE_DEF || opcode == Shader::OPCODE_DEFI || opcode == Shader::OPCODE_DEFB)
{
continue;
}
const Dst &dst = instruction->dst;
const Src &src0 = instruction->src[0];
const Src &src1 = instruction->src[1];
const Src &src2 = instruction->src[2];
const Src &src3 = instruction->src[3];
const Src &src4 = instruction->src[4];
bool predicate = instruction->predicate;
Control control = instruction->control;
bool pp = dst.partialPrecision;
bool project = instruction->project;
bool bias = instruction->bias;
Vector4f d;
Vector4f s0;
Vector4f s1;
Vector4f s2;
Vector4f s3;
Vector4f s4;
if(opcode == Shader::OPCODE_TEXKILL) // Takes destination as input
{
if(dst.type == Shader::PARAMETER_TEXTURE)
{
d.x = v[2 + dst.index].x;
d.y = v[2 + dst.index].y;
d.z = v[2 + dst.index].z;
d.w = v[2 + dst.index].w;
}
else
{
d = r[dst.index];
}
}
if(src0.type != Shader::PARAMETER_VOID) s0 = fetchRegister(src0);
if(src1.type != Shader::PARAMETER_VOID) s1 = fetchRegister(src1);
if(src2.type != Shader::PARAMETER_VOID) s2 = fetchRegister(src2);
if(src3.type != Shader::PARAMETER_VOID) s3 = fetchRegister(src3);
if(src4.type != Shader::PARAMETER_VOID) s4 = fetchRegister(src4);
switch(opcode)
{
case Shader::OPCODE_PS_2_0: break;
case Shader::OPCODE_PS_2_x: break;
case Shader::OPCODE_PS_3_0: break;
case Shader::OPCODE_DEF: break;
case Shader::OPCODE_DCL: break;
case Shader::OPCODE_NOP: break;
case Shader::OPCODE_MOV: mov(d, s0); break;
case Shader::OPCODE_NEG: neg(d, s0); break;
case Shader::OPCODE_INEG: ineg(d, s0); break;
case Shader::OPCODE_F2B: f2b(d, s0); break;
case Shader::OPCODE_B2F: b2f(d, s0); break;
case Shader::OPCODE_F2I: f2i(d, s0); break;
case Shader::OPCODE_I2F: i2f(d, s0); break;
case Shader::OPCODE_F2U: f2u(d, s0); break;
case Shader::OPCODE_U2F: u2f(d, s0); break;
case Shader::OPCODE_I2B: i2b(d, s0); break;
case Shader::OPCODE_B2I: b2i(d, s0); break;
case Shader::OPCODE_ADD: add(d, s0, s1); break;
case Shader::OPCODE_IADD: iadd(d, s0, s1); break;
case Shader::OPCODE_SUB: sub(d, s0, s1); break;
case Shader::OPCODE_ISUB: isub(d, s0, s1); break;
case Shader::OPCODE_MUL: mul(d, s0, s1); break;
case Shader::OPCODE_IMUL: imul(d, s0, s1); break;
case Shader::OPCODE_MAD: mad(d, s0, s1, s2); break;
case Shader::OPCODE_IMAD: imad(d, s0, s1, s2); break;
case Shader::OPCODE_DP1: dp1(d, s0, s1); break;
case Shader::OPCODE_DP2: dp2(d, s0, s1); break;
case Shader::OPCODE_DP2ADD: dp2add(d, s0, s1, s2); break;
case Shader::OPCODE_DP3: dp3(d, s0, s1); break;
case Shader::OPCODE_DP4: dp4(d, s0, s1); break;
case Shader::OPCODE_DET2: det2(d, s0, s1); break;
case Shader::OPCODE_DET3: det3(d, s0, s1, s2); break;
case Shader::OPCODE_DET4: det4(d, s0, s1, s2, s3); break;
case Shader::OPCODE_CMP0: cmp0(d, s0, s1, s2); break;
case Shader::OPCODE_ICMP: icmp(d, s0, s1, control); break;
case Shader::OPCODE_UCMP: ucmp(d, s0, s1, control); break;
case Shader::OPCODE_SELECT: select(d, s0, s1, s2); break;
case Shader::OPCODE_EXTRACT: extract(d.x, s0, s1.x); break;
case Shader::OPCODE_INSERT: insert(d, s0, s1.x, s2.x); break;
case Shader::OPCODE_FRC: frc(d, s0); break;
case Shader::OPCODE_TRUNC: trunc(d, s0); break;
case Shader::OPCODE_FLOOR: floor(d, s0); break;
case Shader::OPCODE_ROUND: round(d, s0); break;
case Shader::OPCODE_ROUNDEVEN: roundEven(d, s0); break;
case Shader::OPCODE_CEIL: ceil(d, s0); break;
case Shader::OPCODE_EXP2X: exp2x(d, s0, pp); break;
case Shader::OPCODE_EXP2: exp2(d, s0, pp); break;
case Shader::OPCODE_LOG2X: log2x(d, s0, pp); break;
case Shader::OPCODE_LOG2: log2(d, s0, pp); break;
case Shader::OPCODE_EXP: exp(d, s0, pp); break;
case Shader::OPCODE_LOG: log(d, s0, pp); break;
case Shader::OPCODE_RCPX: rcpx(d, s0, pp); break;
case Shader::OPCODE_DIV: div(d, s0, s1); break;
case Shader::OPCODE_IDIV: idiv(d, s0, s1); break;
case Shader::OPCODE_UDIV: udiv(d, s0, s1); break;
case Shader::OPCODE_MOD: mod(d, s0, s1); break;
case Shader::OPCODE_IMOD: imod(d, s0, s1); break;
case Shader::OPCODE_UMOD: umod(d, s0, s1); break;
case Shader::OPCODE_SHL: shl(d, s0, s1); break;
case Shader::OPCODE_ISHR: ishr(d, s0, s1); break;
case Shader::OPCODE_USHR: ushr(d, s0, s1); break;
case Shader::OPCODE_RSQX: rsqx(d, s0, pp); break;
case Shader::OPCODE_SQRT: sqrt(d, s0, pp); break;
case Shader::OPCODE_RSQ: rsq(d, s0, pp); break;
case Shader::OPCODE_LEN2: len2(d.x, s0, pp); break;
case Shader::OPCODE_LEN3: len3(d.x, s0, pp); break;
case Shader::OPCODE_LEN4: len4(d.x, s0, pp); break;
case Shader::OPCODE_DIST1: dist1(d.x, s0, s1, pp); break;
case Shader::OPCODE_DIST2: dist2(d.x, s0, s1, pp); break;
case Shader::OPCODE_DIST3: dist3(d.x, s0, s1, pp); break;
case Shader::OPCODE_DIST4: dist4(d.x, s0, s1, pp); break;
case Shader::OPCODE_MIN: min(d, s0, s1); break;
case Shader::OPCODE_IMIN: imin(d, s0, s1); break;
case Shader::OPCODE_UMIN: umin(d, s0, s1); break;
case Shader::OPCODE_MAX: max(d, s0, s1); break;
case Shader::OPCODE_IMAX: imax(d, s0, s1); break;
case Shader::OPCODE_UMAX: umax(d, s0, s1); break;
case Shader::OPCODE_LRP: lrp(d, s0, s1, s2); break;
case Shader::OPCODE_STEP: step(d, s0, s1); break;
case Shader::OPCODE_SMOOTH: smooth(d, s0, s1, s2); break;
case Shader::OPCODE_ISINF: isinf(d, s0); break;
case Shader::OPCODE_ISNAN: isnan(d, s0); break;
case Shader::OPCODE_FLOATBITSTOINT:
case Shader::OPCODE_FLOATBITSTOUINT:
case Shader::OPCODE_INTBITSTOFLOAT:
case Shader::OPCODE_UINTBITSTOFLOAT: d = s0; break;
case Shader::OPCODE_PACKSNORM2x16: packSnorm2x16(d, s0); break;
case Shader::OPCODE_PACKUNORM2x16: packUnorm2x16(d, s0); break;
case Shader::OPCODE_PACKHALF2x16: packHalf2x16(d, s0); break;
case Shader::OPCODE_UNPACKSNORM2x16: unpackSnorm2x16(d, s0); break;
case Shader::OPCODE_UNPACKUNORM2x16: unpackUnorm2x16(d, s0); break;
case Shader::OPCODE_UNPACKHALF2x16: unpackHalf2x16(d, s0); break;
case Shader::OPCODE_POWX: powx(d, s0, s1, pp); break;
case Shader::OPCODE_POW: pow(d, s0, s1, pp); break;
case Shader::OPCODE_SGN: sgn(d, s0); break;
case Shader::OPCODE_ISGN: isgn(d, s0); break;
case Shader::OPCODE_CRS: crs(d, s0, s1); break;
case Shader::OPCODE_FORWARD1: forward1(d, s0, s1, s2); break;
case Shader::OPCODE_FORWARD2: forward2(d, s0, s1, s2); break;
case Shader::OPCODE_FORWARD3: forward3(d, s0, s1, s2); break;
case Shader::OPCODE_FORWARD4: forward4(d, s0, s1, s2); break;
case Shader::OPCODE_REFLECT1: reflect1(d, s0, s1); break;
case Shader::OPCODE_REFLECT2: reflect2(d, s0, s1); break;
case Shader::OPCODE_REFLECT3: reflect3(d, s0, s1); break;
case Shader::OPCODE_REFLECT4: reflect4(d, s0, s1); break;
case Shader::OPCODE_REFRACT1: refract1(d, s0, s1, s2.x); break;
case Shader::OPCODE_REFRACT2: refract2(d, s0, s1, s2.x); break;
case Shader::OPCODE_REFRACT3: refract3(d, s0, s1, s2.x); break;
case Shader::OPCODE_REFRACT4: refract4(d, s0, s1, s2.x); break;
case Shader::OPCODE_NRM2: nrm2(d, s0, pp); break;
case Shader::OPCODE_NRM3: nrm3(d, s0, pp); break;
case Shader::OPCODE_NRM4: nrm4(d, s0, pp); break;
case Shader::OPCODE_ABS: abs(d, s0); break;
case Shader::OPCODE_IABS: iabs(d, s0); break;
case Shader::OPCODE_SINCOS: sincos(d, s0, pp); break;
case Shader::OPCODE_COS: cos(d, s0, pp); break;
case Shader::OPCODE_SIN: sin(d, s0, pp); break;
case Shader::OPCODE_TAN: tan(d, s0, pp); break;
case Shader::OPCODE_ACOS: acos(d, s0, pp); break;
case Shader::OPCODE_ASIN: asin(d, s0, pp); break;
case Shader::OPCODE_ATAN: atan(d, s0, pp); break;
case Shader::OPCODE_ATAN2: atan2(d, s0, s1, pp); break;
case Shader::OPCODE_COSH: cosh(d, s0, pp); break;
case Shader::OPCODE_SINH: sinh(d, s0, pp); break;
case Shader::OPCODE_TANH: tanh(d, s0, pp); break;
case Shader::OPCODE_ACOSH: acosh(d, s0, pp); break;
case Shader::OPCODE_ASINH: asinh(d, s0, pp); break;
case Shader::OPCODE_ATANH: atanh(d, s0, pp); break;
case Shader::OPCODE_M4X4: M4X4(d, s0, src1); break;
case Shader::OPCODE_M4X3: M4X3(d, s0, src1); break;
case Shader::OPCODE_M3X4: M3X4(d, s0, src1); break;
case Shader::OPCODE_M3X3: M3X3(d, s0, src1); break;
case Shader::OPCODE_M3X2: M3X2(d, s0, src1); break;
case Shader::OPCODE_TEX: TEX(d, s0, src1, project, bias); break;
case Shader::OPCODE_TEXLDD: TEXGRAD(d, s0, src1, s2, s3); break;
case Shader::OPCODE_TEXLDL: TEXLOD(d, s0, src1, s0.w); break;
case Shader::OPCODE_TEXLOD: TEXLOD(d, s0, src1, s2.x); break;
case Shader::OPCODE_TEXSIZE: TEXSIZE(d, s0.x, src1); break;
case Shader::OPCODE_TEXKILL: TEXKILL(cMask, d, dst.mask); break;
case Shader::OPCODE_TEXOFFSET: TEXOFFSET(d, s0, src1, s2); break;
case Shader::OPCODE_TEXLODOFFSET: TEXLODOFFSET(d, s0, src1, s2, s3.x); break;
case Shader::OPCODE_TEXELFETCH: TEXELFETCH(d, s0, src1, s2.x); break;
case Shader::OPCODE_TEXELFETCHOFFSET: TEXELFETCHOFFSET(d, s0, src1, s2, s3.x); break;
case Shader::OPCODE_TEXGRAD: TEXGRAD(d, s0, src1, s2, s3); break;
case Shader::OPCODE_TEXGRADOFFSET: TEXGRADOFFSET(d, s0, src1, s2, s3, s4); break;
case Shader::OPCODE_TEXBIAS: TEXBIAS(d, s0, src1, s2.x); break;
case Shader::OPCODE_TEXOFFSETBIAS: TEXOFFSETBIAS(d, s0, src1, s2, s3.x); break;
case Shader::OPCODE_DISCARD: DISCARD(cMask, instruction); break;
case Shader::OPCODE_DFDX: DFDX(d, s0); break;
case Shader::OPCODE_DFDY: DFDY(d, s0); break;
case Shader::OPCODE_FWIDTH: FWIDTH(d, s0); break;
case Shader::OPCODE_BREAK: BREAK(); break;
case Shader::OPCODE_BREAKC: BREAKC(s0, s1, control); break;
case Shader::OPCODE_BREAKP: BREAKP(src0); break;
case Shader::OPCODE_CONTINUE: CONTINUE(); break;
case Shader::OPCODE_TEST: TEST(); break;
case Shader::OPCODE_SCALAR: SCALAR(); break;
case Shader::OPCODE_CALL: CALL(dst.label, dst.callSite); break;
case Shader::OPCODE_CALLNZ: CALLNZ(dst.label, dst.callSite, src0); break;
case Shader::OPCODE_ELSE: ELSE(); break;
case Shader::OPCODE_ENDIF: ENDIF(); break;
case Shader::OPCODE_ENDLOOP: ENDLOOP(); break;
case Shader::OPCODE_ENDREP: ENDREP(); break;
case Shader::OPCODE_ENDWHILE: ENDWHILE(); break;
case Shader::OPCODE_ENDSWITCH: ENDSWITCH(); break;
case Shader::OPCODE_IF: IF(src0); break;
case Shader::OPCODE_IFC: IFC(s0, s1, control); break;
case Shader::OPCODE_LABEL: LABEL(dst.index); break;
case Shader::OPCODE_LOOP: LOOP(src1); break;
case Shader::OPCODE_REP: REP(src0); break;
case Shader::OPCODE_WHILE: WHILE(src0); break;
case Shader::OPCODE_SWITCH: SWITCH(); break;
case Shader::OPCODE_RET: RET(); break;
case Shader::OPCODE_LEAVE: LEAVE(); break;
case Shader::OPCODE_CMP: cmp(d, s0, s1, control); break;
case Shader::OPCODE_ALL: all(d.x, s0); break;
case Shader::OPCODE_ANY: any(d.x, s0); break;
case Shader::OPCODE_NOT: bitwise_not(d, s0); break;
case Shader::OPCODE_OR: bitwise_or(d, s0, s1); break;
case Shader::OPCODE_XOR: bitwise_xor(d, s0, s1); break;
case Shader::OPCODE_AND: bitwise_and(d, s0, s1); break;
case Shader::OPCODE_EQ: equal(d, s0, s1); break;
case Shader::OPCODE_NE: notEqual(d, s0, s1); break;
case Shader::OPCODE_END: break;
default:
ASSERT(false);
}
if(dst.type != Shader::PARAMETER_VOID && dst.type != Shader::PARAMETER_LABEL && opcode != Shader::OPCODE_TEXKILL && opcode != Shader::OPCODE_NOP)
{
if(dst.saturate)
{
if(dst.x) d.x = Max(d.x, Float4(0.0f));
if(dst.y) d.y = Max(d.y, Float4(0.0f));
if(dst.z) d.z = Max(d.z, Float4(0.0f));
if(dst.w) d.w = Max(d.w, Float4(0.0f));
if(dst.x) d.x = Min(d.x, Float4(1.0f));
if(dst.y) d.y = Min(d.y, Float4(1.0f));
if(dst.z) d.z = Min(d.z, Float4(1.0f));
if(dst.w) d.w = Min(d.w, Float4(1.0f));
}
if(instruction->isPredicated())
{
Vector4f pDst; // FIXME: Rename
switch(dst.type)
{
case Shader::PARAMETER_TEMP:
if(dst.rel.type == Shader::PARAMETER_VOID)
{
if(dst.x) pDst.x = r[dst.index].x;
if(dst.y) pDst.y = r[dst.index].y;
if(dst.z) pDst.z = r[dst.index].z;
if(dst.w) pDst.w = r[dst.index].w;
}
else if(!dst.rel.dynamic)
{
Int a = dst.index + relativeAddress(dst.rel);
if(dst.x) pDst.x = r[a].x;
if(dst.y) pDst.y = r[a].y;
if(dst.z) pDst.z = r[a].z;
if(dst.w) pDst.w = r[a].w;
}
else
{
Int4 a = dst.index + dynamicAddress(dst.rel);
if(dst.x) pDst.x = r[a].x;
if(dst.y) pDst.y = r[a].y;
if(dst.z) pDst.z = r[a].z;
if(dst.w) pDst.w = r[a].w;
}
break;
case Shader::PARAMETER_COLOROUT:
if(dst.rel.type == Shader::PARAMETER_VOID)
{
if(dst.x) pDst.x = oC[dst.index].x;
if(dst.y) pDst.y = oC[dst.index].y;
if(dst.z) pDst.z = oC[dst.index].z;
if(dst.w) pDst.w = oC[dst.index].w;
}
else if(!dst.rel.dynamic)
{
Int a = dst.index + relativeAddress(dst.rel);
if(dst.x) pDst.x = oC[a].x;
if(dst.y) pDst.y = oC[a].y;
if(dst.z) pDst.z = oC[a].z;
if(dst.w) pDst.w = oC[a].w;
}
else
{
Int4 a = dst.index + dynamicAddress(dst.rel);
if(dst.x) pDst.x = oC[a].x;
if(dst.y) pDst.y = oC[a].y;
if(dst.z) pDst.z = oC[a].z;
if(dst.w) pDst.w = oC[a].w;
}
break;
case Shader::PARAMETER_PREDICATE:
if(dst.x) pDst.x = p0.x;
if(dst.y) pDst.y = p0.y;
if(dst.z) pDst.z = p0.z;
if(dst.w) pDst.w = p0.w;
break;
case Shader::PARAMETER_DEPTHOUT:
pDst.x = oDepth;
break;
default:
ASSERT(false);
}
Int4 enable = enableMask(instruction);
Int4 xEnable = enable;
Int4 yEnable = enable;
Int4 zEnable = enable;
Int4 wEnable = enable;
if(predicate)
{
unsigned char pSwizzle = instruction->predicateSwizzle;
Float4 xPredicate = p0[(pSwizzle >> 0) & 0x03];
Float4 yPredicate = p0[(pSwizzle >> 2) & 0x03];
Float4 zPredicate = p0[(pSwizzle >> 4) & 0x03];
Float4 wPredicate = p0[(pSwizzle >> 6) & 0x03];
if(!instruction->predicateNot)
{
if(dst.x) xEnable = xEnable & As<Int4>(xPredicate);
if(dst.y) yEnable = yEnable & As<Int4>(yPredicate);
if(dst.z) zEnable = zEnable & As<Int4>(zPredicate);
if(dst.w) wEnable = wEnable & As<Int4>(wPredicate);
}
else
{
if(dst.x) xEnable = xEnable & ~As<Int4>(xPredicate);
if(dst.y) yEnable = yEnable & ~As<Int4>(yPredicate);
if(dst.z) zEnable = zEnable & ~As<Int4>(zPredicate);
if(dst.w) wEnable = wEnable & ~As<Int4>(wPredicate);
}
}
if(dst.x) d.x = As<Float4>(As<Int4>(d.x) & xEnable);
if(dst.y) d.y = As<Float4>(As<Int4>(d.y) & yEnable);
if(dst.z) d.z = As<Float4>(As<Int4>(d.z) & zEnable);
if(dst.w) d.w = As<Float4>(As<Int4>(d.w) & wEnable);
if(dst.x) d.x = As<Float4>(As<Int4>(d.x) | (As<Int4>(pDst.x) & ~xEnable));
if(dst.y) d.y = As<Float4>(As<Int4>(d.y) | (As<Int4>(pDst.y) & ~yEnable));
if(dst.z) d.z = As<Float4>(As<Int4>(d.z) | (As<Int4>(pDst.z) & ~zEnable));
if(dst.w) d.w = As<Float4>(As<Int4>(d.w) | (As<Int4>(pDst.w) & ~wEnable));
}
switch(dst.type)
{
case Shader::PARAMETER_TEMP:
if(dst.rel.type == Shader::PARAMETER_VOID)
{
if(dst.x) r[dst.index].x = d.x;
if(dst.y) r[dst.index].y = d.y;
if(dst.z) r[dst.index].z = d.z;
if(dst.w) r[dst.index].w = d.w;
}
else if(!dst.rel.dynamic)
{
Int a = dst.index + relativeAddress(dst.rel);
if(dst.x) r[a].x = d.x;
if(dst.y) r[a].y = d.y;
if(dst.z) r[a].z = d.z;
if(dst.w) r[a].w = d.w;
}
else
{
Int4 a = dst.index + dynamicAddress(dst.rel);
if(dst.x) r.scatter_x(a, d.x);
if(dst.y) r.scatter_y(a, d.y);
if(dst.z) r.scatter_z(a, d.z);
if(dst.w) r.scatter_w(a, d.w);
}
break;
case Shader::PARAMETER_COLOROUT:
if(dst.rel.type == Shader::PARAMETER_VOID)
{
broadcastColor0 = (dst.index == 0) && broadcastColor0;
if(dst.x) oC[dst.index].x = d.x;
if(dst.y) oC[dst.index].y = d.y;
if(dst.z) oC[dst.index].z = d.z;
if(dst.w) oC[dst.index].w = d.w;
}
else if(!dst.rel.dynamic)
{
broadcastColor0 = false;
Int a = dst.index + relativeAddress(dst.rel);
if(dst.x) oC[a].x = d.x;
if(dst.y) oC[a].y = d.y;
if(dst.z) oC[a].z = d.z;
if(dst.w) oC[a].w = d.w;
}
else
{
broadcastColor0 = false;
Int4 a = dst.index + dynamicAddress(dst.rel);
if(dst.x) oC.scatter_x(a, d.x);
if(dst.y) oC.scatter_y(a, d.y);
if(dst.z) oC.scatter_z(a, d.z);
if(dst.w) oC.scatter_w(a, d.w);
}
break;
case Shader::PARAMETER_PREDICATE:
if(dst.x) p0.x = d.x;
if(dst.y) p0.y = d.y;
if(dst.z) p0.z = d.z;
if(dst.w) p0.w = d.w;
break;
case Shader::PARAMETER_DEPTHOUT:
oDepth = d.x;
break;
default:
ASSERT(false);
}
}
}
if(currentLabel != -1)
{
Nucleus::setInsertBlock(returnBlock);
}
if(broadcastColor0)
{
for(int i = 0; i < RENDERTARGETS; i++)
{
c[i] = oC[0];
}
}
else
{
for(int i = 0; i < RENDERTARGETS; i++)
{
c[i] = oC[i];
}
}
clampColor(c);
if(state.depthOverride)
{
oDepth = Min(Max(oDepth, Float4(0.0f)), Float4(1.0f));
}
}
Bool PixelProgram::alphaTest(Int cMask[4])
{
if(!state.alphaTestActive())
{
return true;
}
Int aMask;
if(state.transparencyAntialiasing == TRANSPARENCY_NONE)
{
Short4 alpha = RoundShort4(c[0].w * Float4(0x1000));
PixelRoutine::alphaTest(aMask, alpha);
for(unsigned int q = 0; q < state.multiSample; q++)
{
cMask[q] &= aMask;
}
}
else if(state.transparencyAntialiasing == TRANSPARENCY_ALPHA_TO_COVERAGE)
{
alphaToCoverage(cMask, c[0].w);
}
else ASSERT(false);
Int pass = cMask[0];
for(unsigned int q = 1; q < state.multiSample; q++)
{
pass = pass | cMask[q];
}
return pass != 0x0;
}
void PixelProgram::rasterOperation(Float4 &fog, Pointer<Byte> cBuffer[4], Int &x, Int sMask[4], Int zMask[4], Int cMask[4])
{
for(int index = 0; index < RENDERTARGETS; index++)
{
if(!state.colorWriteActive(index))
{
continue;
}
if(!postBlendSRGB && state.writeSRGB && !isSRGB(index))
{
c[index].x = linearToSRGB(c[index].x);
c[index].y = linearToSRGB(c[index].y);
c[index].z = linearToSRGB(c[index].z);
}
if(index == 0)
{
fogBlend(c[index], fog);
}
switch(state.targetFormat[index])
{
case FORMAT_R5G6B5:
case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8:
case FORMAT_A8R8G8B8:
case FORMAT_A8B8G8R8:
case FORMAT_SRGB8_X8:
case FORMAT_SRGB8_A8:
case FORMAT_G8R8:
case FORMAT_R8:
case FORMAT_A8:
case FORMAT_G16R16:
case FORMAT_A16B16G16R16:
for(unsigned int q = 0; q < state.multiSample; q++)
{
Pointer<Byte> buffer = cBuffer[index] + q * *Pointer<Int>(data + OFFSET(DrawData, colorSliceB[index]));
Vector4s color;
if(state.targetFormat[index] == FORMAT_R5G6B5)
{
color.x = UShort4(c[index].x * Float4(0xFBFF), false);
color.y = UShort4(c[index].y * Float4(0xFDFF), false);
color.z = UShort4(c[index].z * Float4(0xFBFF), false);
color.w = UShort4(c[index].w * Float4(0xFFFF), false);
}
else
{
color.x = convertFixed16(c[index].x, false);
color.y = convertFixed16(c[index].y, false);
color.z = convertFixed16(c[index].z, false);
color.w = convertFixed16(c[index].w, false);
}
if(state.multiSampleMask & (1 << q))
{
alphaBlend(index, buffer, color, x);
logicOperation(index, buffer, color, x);
writeColor(index, buffer, x, color, sMask[q], zMask[q], cMask[q]);
}
}
break;
case FORMAT_R32F:
case FORMAT_G32R32F:
case FORMAT_X32B32G32R32F:
case FORMAT_A32B32G32R32F:
case FORMAT_X32B32G32R32F_UNSIGNED:
case FORMAT_R32I:
case FORMAT_G32R32I:
case FORMAT_A32B32G32R32I:
case FORMAT_R32UI:
case FORMAT_G32R32UI:
case FORMAT_A32B32G32R32UI:
case FORMAT_R16I:
case FORMAT_G16R16I:
case FORMAT_A16B16G16R16I:
case FORMAT_R16UI:
case FORMAT_G16R16UI:
case FORMAT_A16B16G16R16UI:
case FORMAT_R8I:
case FORMAT_G8R8I:
case FORMAT_A8B8G8R8I:
case FORMAT_R8UI:
case FORMAT_G8R8UI:
case FORMAT_A8B8G8R8UI:
for(unsigned int q = 0; q < state.multiSample; q++)
{
Pointer<Byte> buffer = cBuffer[index] + q * *Pointer<Int>(data + OFFSET(DrawData, colorSliceB[index]));
Vector4f color = c[index];
if(state.multiSampleMask & (1 << q))
{
alphaBlend(index, buffer, color, x);
writeColor(index, buffer, x, color, sMask[q], zMask[q], cMask[q]);
}
}
break;
default:
ASSERT(false);
}
}
}
Vector4f PixelProgram::sampleTexture(const Src &sampler, Vector4f &uvwq, Float4 &bias, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function)
{
Vector4f tmp;
if(sampler.type == Shader::PARAMETER_SAMPLER && sampler.rel.type == Shader::PARAMETER_VOID)
{
tmp = sampleTexture(sampler.index, uvwq, bias, dsx, dsy, offset, function);
}
else
{
Int index = As<Int>(Float(fetchRegister(sampler).x.x));
for(int i = 0; i < TEXTURE_IMAGE_UNITS; i++)
{
if(shader->usesSampler(i))
{
If(index == i)
{
tmp = sampleTexture(i, uvwq, bias, dsx, dsy, offset, function);
// FIXME: When the sampler states are the same, we could use one sampler and just index the texture
}
}
}
}
Vector4f c;
c.x = tmp[(sampler.swizzle >> 0) & 0x3];
c.y = tmp[(sampler.swizzle >> 2) & 0x3];
c.z = tmp[(sampler.swizzle >> 4) & 0x3];
c.w = tmp[(sampler.swizzle >> 6) & 0x3];
return c;
}
Vector4f PixelProgram::sampleTexture(int samplerIndex, Vector4f &uvwq, Float4 &bias, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function)
{
#if PERF_PROFILE
Long texTime = Ticks();
#endif
Pointer<Byte> texture = data + OFFSET(DrawData, mipmap) + samplerIndex * sizeof(Texture);
Vector4f c = SamplerCore(constants, state.sampler[samplerIndex]).sampleTexture(texture, uvwq.x, uvwq.y, uvwq.z, uvwq.w, bias, dsx, dsy, offset, function);
#if PERF_PROFILE
cycles[PERF_TEX] += Ticks() - texTime;
#endif
return c;
}
void PixelProgram::clampColor(Vector4f oC[RENDERTARGETS])
{
for(int index = 0; index < RENDERTARGETS; index++)
{
if(!state.colorWriteActive(index) && !(index == 0 && state.alphaTestActive()))
{
continue;
}
switch(state.targetFormat[index])
{
case FORMAT_NULL:
break;
case FORMAT_R5G6B5:
case FORMAT_A8R8G8B8:
case FORMAT_A8B8G8R8:
case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8:
case FORMAT_SRGB8_X8:
case FORMAT_SRGB8_A8:
case FORMAT_G8R8:
case FORMAT_R8:
case FORMAT_A8:
case FORMAT_G16R16:
case FORMAT_A16B16G16R16:
oC[index].x = Max(oC[index].x, Float4(0.0f)); oC[index].x = Min(oC[index].x, Float4(1.0f));
oC[index].y = Max(oC[index].y, Float4(0.0f)); oC[index].y = Min(oC[index].y, Float4(1.0f));
oC[index].z = Max(oC[index].z, Float4(0.0f)); oC[index].z = Min(oC[index].z, Float4(1.0f));
oC[index].w = Max(oC[index].w, Float4(0.0f)); oC[index].w = Min(oC[index].w, Float4(1.0f));
break;
case FORMAT_R32F:
case FORMAT_G32R32F:
case FORMAT_X32B32G32R32F:
case FORMAT_A32B32G32R32F:
case FORMAT_R32I:
case FORMAT_G32R32I:
case FORMAT_A32B32G32R32I:
case FORMAT_R32UI:
case FORMAT_G32R32UI:
case FORMAT_A32B32G32R32UI:
case FORMAT_R16I:
case FORMAT_G16R16I:
case FORMAT_A16B16G16R16I:
case FORMAT_R16UI:
case FORMAT_G16R16UI:
case FORMAT_A16B16G16R16UI:
case FORMAT_R8I:
case FORMAT_G8R8I:
case FORMAT_A8B8G8R8I:
case FORMAT_R8UI:
case FORMAT_G8R8UI:
case FORMAT_A8B8G8R8UI:
break;
case FORMAT_X32B32G32R32F_UNSIGNED:
oC[index].x = Max(oC[index].x, Float4(0.0f));
oC[index].y = Max(oC[index].y, Float4(0.0f));
oC[index].z = Max(oC[index].z, Float4(0.0f));
oC[index].w = Max(oC[index].w, Float4(0.0f));
break;
default:
ASSERT(false);
}
}
}
Int4 PixelProgram::enableMask(const Shader::Instruction *instruction)
{
if(scalar)
{
return Int4(0xFFFFFFFF);
}
Int4 enable = instruction->analysisBranch ? Int4(enableStack[Min(enableIndex, Int(MAX_SHADER_ENABLE_STACK_SIZE))]) : Int4(0xFFFFFFFF);
if(shader->containsBreakInstruction() && instruction->analysisBreak)
{
enable &= enableBreak;
}
if(shader->containsContinueInstruction() && instruction->analysisContinue)
{
enable &= enableContinue;
}
if(shader->containsLeaveInstruction() && instruction->analysisLeave)
{
enable &= enableLeave;
}
return enable;
}
Vector4f PixelProgram::fetchRegister(const Src &src, unsigned int offset)
{
Vector4f reg;
unsigned int i = src.index + offset;
switch(src.type)
{
case Shader::PARAMETER_TEMP:
if(src.rel.type == Shader::PARAMETER_VOID)
{
reg = r[i];
}
else if(!src.rel.dynamic)
{
reg = r[i + relativeAddress(src.rel, src.bufferIndex)];
}
else
{
reg = r[i + dynamicAddress(src.rel)];
}
break;
case Shader::PARAMETER_INPUT:
if(src.rel.type == Shader::PARAMETER_VOID) // Not relative
{
reg = v[i];
}
else if(!src.rel.dynamic)
{
reg = v[i + relativeAddress(src.rel, src.bufferIndex)];
}
else
{
reg = v[i + dynamicAddress(src.rel)];
}
break;
case Shader::PARAMETER_CONST:
reg = readConstant(src, offset);
break;
case Shader::PARAMETER_TEXTURE:
reg = v[2 + i];
break;
case Shader::PARAMETER_MISCTYPE:
if(src.index == Shader::VPosIndex) reg = vPos;
if(src.index == Shader::VFaceIndex) reg = vFace;
break;
case Shader::PARAMETER_SAMPLER:
if(src.rel.type == Shader::PARAMETER_VOID)
{
reg.x = As<Float4>(Int4(i));
}
else if(src.rel.type == Shader::PARAMETER_TEMP)
{
reg.x = As<Float4>(Int4(i) + As<Int4>(r[src.rel.index].x));
}
return reg;
case Shader::PARAMETER_PREDICATE: return reg; // Dummy
case Shader::PARAMETER_VOID: return reg; // Dummy
case Shader::PARAMETER_FLOAT4LITERAL:
// This is used for all literal types, and since Reactor doesn't guarantee
// preserving the bit pattern of float constants, we must construct them
// as integer constants and bitcast.
reg.x = As<Float4>(Int4(src.integer[0]));
reg.y = As<Float4>(Int4(src.integer[1]));
reg.z = As<Float4>(Int4(src.integer[2]));
reg.w = As<Float4>(Int4(src.integer[3]));
break;
case Shader::PARAMETER_CONSTINT: return reg; // Dummy
case Shader::PARAMETER_CONSTBOOL: return reg; // Dummy
case Shader::PARAMETER_LOOP: return reg; // Dummy
case Shader::PARAMETER_COLOROUT:
if(src.rel.type == Shader::PARAMETER_VOID) // Not relative
{
reg = oC[i];
}
else if(!src.rel.dynamic)
{
reg = oC[i + relativeAddress(src.rel, src.bufferIndex)];
}
else
{
reg = oC[i + dynamicAddress(src.rel)];
}
break;
case Shader::PARAMETER_DEPTHOUT:
reg.x = oDepth;
break;
default:
ASSERT(false);
}
const Float4 &x = reg[(src.swizzle >> 0) & 0x3];
const Float4 &y = reg[(src.swizzle >> 2) & 0x3];
const Float4 &z = reg[(src.swizzle >> 4) & 0x3];
const Float4 &w = reg[(src.swizzle >> 6) & 0x3];
Vector4f mod;
switch(src.modifier)
{
case Shader::MODIFIER_NONE:
mod.x = x;
mod.y = y;
mod.z = z;
mod.w = w;
break;
case Shader::MODIFIER_NEGATE:
mod.x = -x;
mod.y = -y;
mod.z = -z;
mod.w = -w;
break;