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swiftshader
Commit 0484c799 by Nicolas Capens
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Perform texture coordinate projection early.

Change-Id: Ia907ff073bf00114b2a3e72c495bf96c5a57154e Reviewed-on: https://swiftshader-review.googlesource.com/5592Tested-by: 's avatarNicolas Capens <capn@google.com> Reviewed-by: 's avatarMeng-Lin Wu <marleymoo@google.com> Reviewed-by: 's avatarNicolas Capens <capn@google.com>
parent 9d62c486
Showing with 41 additions and 56 deletions
src/OpenGL/compiler/OutputASM.cpp
......@@ -1236,25 +1236,12 @@ namespace glsl
if(textureFunction.proj)
{
TIntermConstantUnion* constant = arg[1]->getAsConstantUnion();
if(constant)
{
float projFactor = 1.0f / constant->getFConst(t->getNominalSize() - 1);
Constant projCoord(constant->getFConst(0) * projFactor,
constant->getFConst(1) * projFactor,
constant->getFConst(2) * projFactor,
0.0f);
emit(sw::Shader::OPCODE_MOV, &coord, &projCoord);
}
else
{
Instruction *rcp = emit(sw::Shader::OPCODE_RCPX, &coord, arg[1]);
rcp->src[0].swizzle = 0x55 * (t->getNominalSize() - 1);
rcp->dst.mask = 0x7;
Instruction *rcp = emit(sw::Shader::OPCODE_RCPX, &coord, arg[1]);
rcp->src[0].swizzle = 0x55 * (t->getNominalSize() - 1);
rcp->dst.mask = 0x7;
Instruction *mul = emit(sw::Shader::OPCODE_MUL, &coord, arg[1], &coord);
mul->dst.mask = 0x7;
}
Instruction *mul = emit(sw::Shader::OPCODE_MUL, &coord, arg[1], &coord);
mul->dst.mask = 0x7;
}
else
{
......
src/Shader/PixelProgram.cpp
......@@ -281,12 +281,12 @@ namespace sw
case Shader::OPCODE_M3X3: M3X3(d, s0, src1); break;
case Shader::OPCODE_M3X2: M3X2(d, s0, src1); break;
case Shader::OPCODE_TEX: TEXLD(d, s0, src1, project, bias); break;
case Shader::OPCODE_TEXLDD: TEXLDD(d, s0, src1, s2, s3, project); break;
case Shader::OPCODE_TEXLDL: TEXLDL(d, s0, src1, project); break;
case Shader::OPCODE_TEXLDD: TEXLDD(d, s0, src1, s2, s3); break;
case Shader::OPCODE_TEXLDL: TEXLDL(d, s0, src1); 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, project, bias); break;
case Shader::OPCODE_TEXLDLOFFSET: TEXLDL(d, s0, src1, s2, project, bias); break;
case Shader::OPCODE_TEXOFFSET: TEXOFFSET(d, s0, src1, s2, bias); break;
case Shader::OPCODE_TEXLDLOFFSET: TEXLDL(d, s0, src1, s2, bias); break;
case Shader::OPCODE_TEXELFETCH: TEXELFETCH(d, s0, src1); break;
case Shader::OPCODE_TEXELFETCHOFFSET: TEXELFETCH(d, s0, src1, s2); break;
case Shader::OPCODE_TEXGRAD: TEXGRAD(d, s0, src1, s2, s3); break;
......@@ -714,21 +714,7 @@ namespace sw
#endif
Pointer<Byte> texture = data + OFFSET(DrawData, mipmap) + samplerIndex * sizeof(Texture);
if(!(options & Project))
{
sampler[samplerIndex]->sampleTexture(texture, c, uvwq.x, uvwq.y, uvwq.z, uvwq.w, dsx, dsy, offset, options, method);
}
else
{
Float4 rq = reciprocal(uvwq.w);
Float4 u_q = uvwq.x * rq;
Float4 v_q = uvwq.y * rq;
Float4 w_q = uvwq.z * rq;
sampler[samplerIndex]->sampleTexture(texture, c, u_q, v_q, w_q, uvwq.w, dsx, dsy, offset, options, method);
}
sampler[samplerIndex]->sampleTexture(texture, c, uvwq.x, uvwq.y, uvwq.z, uvwq.w, dsx, dsy, offset, options, method);
#if PERF_PROFILE
cycles[PERF_TEX] += Ticks() - texTime;
......@@ -1109,17 +1095,30 @@ namespace sw
void PixelProgram::TEXLD(Vector4f &dst, Vector4f &src0, const Src &src1, bool project, bool bias)
{
sampleTexture(dst, src1, src0, src0, src0, src0, bias ? Bias : Implicit, project ? Project : None);
if(project)
{
Vector4f proj;
Float4 rw = reciprocal(src0.w);
proj.x = src0.x * rw;
proj.y = src0.y * rw;
proj.z = src0.z * rw;
sampleTexture(dst, src1, proj, src0, src0, src0, Implicit, None);
}
else
{
sampleTexture(dst, src1, src0, src0, src0, src0, bias ? Bias : Implicit, None);
}
}
void PixelProgram::TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool project, bool bias)
void PixelProgram::TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool bias)
{
sampleTexture(dst, src1, src0, src0, src0, src2, bias ? Bias : Implicit, project ? (Project | Offset) : Offset);
sampleTexture(dst, src1, src0, src0, src0, src2, bias ? Bias : Implicit, Offset);
}
void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &offset, bool project, bool bias)
void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &offset, bool bias)
{
sampleTexture(dst, src1, src0, src0, src0, offset, Lod, project ? (Project | Offset) : Offset);
sampleTexture(dst, src1, src0, src0, src0, offset, Lod, Offset);
}
void PixelProgram::TEXELFETCH(Vector4f &dst, Vector4f &src0, const Src& src1)
......@@ -1142,14 +1141,14 @@ namespace sw
sampleTexture(dst, src1, src0, src2, src3, offset, Grad, Offset);
}
void PixelProgram::TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3, bool project)
void PixelProgram::TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3)
{
sampleTexture(dst, src1, src0, src2, src3, src0, Grad, project ? Project : None);
sampleTexture(dst, src1, src0, src2, src3, src0, Grad, None);
}
void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, bool project)
void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1)
{
sampleTexture(dst, src1, src0, src0, src0, src0, Lod, project ? Project : None);
sampleTexture(dst, src1, src0, src0, src0, src0, Lod, None);
}
void PixelProgram::TEXSIZE(Vector4f &dst, Float4 &lod, const Src &src1)
......
src/Shader/PixelProgram.hpp
......@@ -107,12 +107,12 @@ namespace sw
void M4X3(Vector4f &dst, Vector4f &src0, const Src &src1);
void M4X4(Vector4f &dst, Vector4f &src0, const Src &src1);
void TEXLD(Vector4f &dst, Vector4f &src0, const Src &src1, bool project, bool bias);
void TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3, bool project);
void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, bool project);
void TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3);
void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1);
void TEXSIZE(Vector4f &dst, Float4 &lod, const Src &src1);
void TEXKILL(Int cMask[4], Vector4f &src, unsigned char mask);
void TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool project, bool bias);
void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool project, bool bias);
void TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool bias);
void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool bias);
void TEXELFETCH(Vector4f &dst, Vector4f &src, const Src&);
void TEXELFETCH(Vector4f &dst, Vector4f &src, const Src&, Vector4f &src2);
void TEXGRAD(Vector4f &dst, Vector4f &src, const Src&, Vector4f &src2, Vector4f &src3);
......
src/Shader/SamplerCore.hpp
......@@ -28,12 +28,11 @@ namespace sw
Grad
};
enum TextureFunction
{
None = 0x00,
Project = 0x01,
Offset = 0x02,
Fetch = 0x04
enum TextureFunction
{
None = 0x00,
Offset = 0x01,
Fetch = 0x02
};
class SamplerCore
......
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