Mike Klein | 68c50d0 | 2019-05-29 12:57:54 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "bench/Benchmark.h" |
| 9 | #include "src/core/SkOpts.h" |
| 10 | #include "src/core/SkVM.h" |
| 11 | |
Mike Klein | 68c50d0 | 2019-05-29 12:57:54 -0500 | [diff] [blame] | 12 | namespace { |
| 13 | |
| 14 | enum Mode {Opts, RP, F32, I32, I32_SWAR}; |
| 15 | static const char* kMode_name[] = { "Opts", "RP","F32", "I32", "I32_SWAR" }; |
| 16 | |
| 17 | struct SrcoverBuilder_F32 : public skvm::Builder { |
| 18 | SrcoverBuilder_F32() { |
| 19 | |
| 20 | skvm::Arg src = arg(0), |
| 21 | dst = arg(1); |
| 22 | |
| 23 | auto byte_to_f32 = [&](skvm::I32 byte) { |
| 24 | return mul(splat(1/255.0f), to_f32(byte)); |
| 25 | }; |
| 26 | auto f32_to_byte = [&](skvm::F32 f32) { |
| 27 | return to_i32(mad(f32, splat(255.0f), splat(0.5f))); |
| 28 | }; |
| 29 | |
| 30 | auto load = [&](skvm::Arg ptr, |
| 31 | skvm::F32* r, skvm::F32* g, skvm::F32* b, skvm::F32* a) { |
| 32 | skvm::I32 rgba = load32(ptr); |
| 33 | *r = byte_to_f32(bit_and( rgba , splat(0xff))); |
| 34 | *g = byte_to_f32(bit_and(shr(rgba, 8), splat(0xff))); |
| 35 | *b = byte_to_f32(bit_and(shr(rgba, 16), splat(0xff))); |
| 36 | *a = byte_to_f32( shr(rgba, 24) ); |
| 37 | }; |
| 38 | |
| 39 | skvm::F32 r,g,b,a; |
| 40 | load(src, &r,&g,&b,&a); |
| 41 | |
| 42 | skvm::F32 dr,dg,db,da; |
| 43 | load(dst, &dr,&dg,&db,&da); |
| 44 | |
| 45 | skvm::F32 invA = sub(splat(1.0f), a); |
| 46 | r = mad(dr, invA, r); |
| 47 | g = mad(dg, invA, g); |
| 48 | b = mad(db, invA, b); |
| 49 | a = mad(da, invA, a); |
| 50 | |
| 51 | store32(dst, bit_or( f32_to_byte(r) , |
| 52 | bit_or(shl(f32_to_byte(g), 8), |
| 53 | bit_or(shl(f32_to_byte(b), 16), |
| 54 | shl(f32_to_byte(a), 24))))); |
| 55 | } |
| 56 | }; |
| 57 | |
| 58 | struct SrcoverBuilder_I32 : public skvm::Builder { |
| 59 | SrcoverBuilder_I32() { |
| 60 | skvm::Arg src = arg(0), |
| 61 | dst = arg(1); |
| 62 | |
| 63 | auto load = [&](skvm::Arg ptr, |
| 64 | skvm::I32* r, skvm::I32* g, skvm::I32* b, skvm::I32* a) { |
| 65 | skvm::I32 rgba = load32(ptr); |
| 66 | *r = bit_and( rgba , splat(0xff)); |
| 67 | *g = bit_and(shr(rgba, 8), splat(0xff)); |
| 68 | *b = bit_and(shr(rgba, 16), splat(0xff)); |
| 69 | *a = shr(rgba, 24) ; |
| 70 | }; |
| 71 | |
| 72 | auto mul_unorm8 = [&](skvm::I32 x, skvm::I32 y) { |
| 73 | // (x*y + 127)/255 ~= (x*y+255)/256 |
| 74 | return shr(add(mul(x, y), splat(0xff)), 8); |
| 75 | }; |
| 76 | |
| 77 | skvm::I32 r,g,b,a; |
| 78 | load(src, &r,&g,&b,&a); |
| 79 | |
| 80 | skvm::I32 dr,dg,db,da; |
| 81 | load(dst, &dr,&dg,&db,&da); |
| 82 | |
| 83 | skvm::I32 invA = sub(splat(0xff), a); |
| 84 | r = add(r, mul_unorm8(dr, invA)); |
Mike Klein | 03ce675 | 2019-06-03 14:53:15 -0500 | [diff] [blame^] | 85 | g = add(g, mul_unorm8(dg, invA)); |
| 86 | b = add(b, mul_unorm8(db, invA)); |
| 87 | a = add(a, mul_unorm8(da, invA)); |
Mike Klein | 68c50d0 | 2019-05-29 12:57:54 -0500 | [diff] [blame] | 88 | |
| 89 | store32(dst, bit_or( r , |
| 90 | bit_or(shl(g, 8), |
| 91 | bit_or(shl(b, 16), |
| 92 | shl(a, 24))))); |
| 93 | } |
| 94 | }; |
| 95 | |
| 96 | struct SrcoverBuilder_I32_SWAR : public skvm::Builder { |
| 97 | SrcoverBuilder_I32_SWAR() { |
| 98 | skvm::Arg src = arg(0), |
| 99 | dst = arg(1); |
| 100 | |
| 101 | auto load = [&](skvm::Arg ptr, |
| 102 | skvm::I32* rb, skvm::I32* ga) { |
| 103 | skvm::I32 rgba = load32(ptr); |
| 104 | *rb = bit_and( rgba, splat(0x00ff00ff)); |
| 105 | *ga = bit_and(shr(rgba, 8), splat(0x00ff00ff)); |
| 106 | }; |
| 107 | |
| 108 | auto mul_unorm8 = [&](skvm::I32 x, skvm::I32 y) { |
| 109 | // As above, assuming x is two SWAR bytes in lanes 0 and 2, and y is a byte. |
Mike Klein | 03ce675 | 2019-06-03 14:53:15 -0500 | [diff] [blame^] | 110 | return bit_and(shr(add(mul(x, y), |
| 111 | splat(0x00ff00ff)), |
| 112 | 8), |
| 113 | splat(0x00ff00ff)); |
Mike Klein | 68c50d0 | 2019-05-29 12:57:54 -0500 | [diff] [blame] | 114 | }; |
| 115 | |
| 116 | skvm::I32 rb, ga; |
| 117 | load(src, &rb, &ga); |
| 118 | |
| 119 | skvm::I32 drb, dga; |
| 120 | load(dst, &drb, &dga); |
| 121 | |
| 122 | skvm::I32 invA = sub(splat(0xff), shr(ga, 16)); |
| 123 | rb = add(rb, mul_unorm8(drb, invA)); |
| 124 | ga = add(ga, mul_unorm8(dga, invA)); |
| 125 | |
| 126 | store32(dst, bit_or(rb, shl(ga, 8))); |
| 127 | } |
| 128 | }; |
| 129 | } |
| 130 | |
| 131 | class SkVMBench : public Benchmark { |
| 132 | public: |
| 133 | SkVMBench(int pixels, Mode mode) |
| 134 | : fPixels(pixels) |
| 135 | , fMode(mode) |
| 136 | , fName(SkStringPrintf("SkVM_%d_%s", pixels, kMode_name[mode])) |
| 137 | {} |
| 138 | |
| 139 | private: |
| 140 | const char* onGetName() override { return fName.c_str(); } |
| 141 | bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; } |
| 142 | |
| 143 | void onDelayedSetup() override { |
| 144 | this->setUnits(fPixels); |
| 145 | fSrc.resize(fPixels, 0x7f123456); // Arbitrary non-opaque non-transparent value. |
| 146 | fDst.resize(fPixels, 0xff987654); // Arbitrary value. |
| 147 | |
| 148 | if (fMode == F32 ) { fProgram = SrcoverBuilder_F32 {}.done(); } |
| 149 | if (fMode == I32 ) { fProgram = SrcoverBuilder_I32 {}.done(); } |
| 150 | if (fMode == I32_SWAR) { fProgram = SrcoverBuilder_I32_SWAR{}.done(); } |
| 151 | |
| 152 | if (fMode == RP) { |
| 153 | fSrcCtx = { fSrc.data(), 0 }; |
| 154 | fDstCtx = { fDst.data(), 0 }; |
| 155 | fPipeline.append(SkRasterPipeline::load_8888 , &fSrcCtx); |
| 156 | fPipeline.append(SkRasterPipeline::load_8888_dst, &fDstCtx); |
| 157 | fPipeline.append(SkRasterPipeline::srcover); |
| 158 | fPipeline.append(SkRasterPipeline::store_8888, &fDstCtx); |
| 159 | } |
Mike Klein | 03ce675 | 2019-06-03 14:53:15 -0500 | [diff] [blame^] | 160 | |
| 161 | // Trigger one run now so we can do a quick correctness check. |
| 162 | this->draw(1,nullptr); |
| 163 | for (int i = 0; i < fPixels; i++) { |
| 164 | SkASSERT(fDst[i] == 0xff5e6f80); |
| 165 | } |
Mike Klein | 68c50d0 | 2019-05-29 12:57:54 -0500 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | void onDraw(int loops, SkCanvas*) override { |
| 169 | while (loops --> 0) { |
| 170 | if (fMode == Opts) { |
| 171 | SkOpts::blit_row_s32a_opaque(fDst.data(), fSrc.data(), fPixels, 0xff); |
| 172 | } else if (fMode == RP) { |
| 173 | fPipeline.run(0,0,fPixels,1); |
| 174 | } else { |
| 175 | fProgram.eval(fPixels, fSrc.data(), fDst.data()); |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | int fPixels; |
| 181 | Mode fMode; |
| 182 | SkString fName; |
| 183 | std::vector<uint32_t> fSrc, |
| 184 | fDst; |
| 185 | skvm::Program fProgram; |
| 186 | |
| 187 | SkRasterPipeline_MemoryCtx fSrcCtx, |
| 188 | fDstCtx; |
| 189 | SkRasterPipeline_<256> fPipeline; |
| 190 | }; |
| 191 | |
| 192 | DEF_BENCH(return (new SkVMBench{ 1, Opts});) |
| 193 | DEF_BENCH(return (new SkVMBench{ 4, Opts});) |
| 194 | DEF_BENCH(return (new SkVMBench{ 16, Opts});) |
| 195 | DEF_BENCH(return (new SkVMBench{ 64, Opts});) |
| 196 | DEF_BENCH(return (new SkVMBench{ 256, Opts});) |
| 197 | DEF_BENCH(return (new SkVMBench{1024, Opts});) |
| 198 | DEF_BENCH(return (new SkVMBench{4096, Opts});) |
| 199 | |
| 200 | DEF_BENCH(return (new SkVMBench{ 1, RP});) |
| 201 | DEF_BENCH(return (new SkVMBench{ 4, RP});) |
| 202 | DEF_BENCH(return (new SkVMBench{ 16, RP});) |
| 203 | DEF_BENCH(return (new SkVMBench{ 64, RP});) |
| 204 | DEF_BENCH(return (new SkVMBench{ 256, RP});) |
| 205 | DEF_BENCH(return (new SkVMBench{1024, RP});) |
| 206 | DEF_BENCH(return (new SkVMBench{4096, RP});) |
| 207 | |
| 208 | DEF_BENCH(return (new SkVMBench{ 1, F32});) |
| 209 | DEF_BENCH(return (new SkVMBench{ 4, F32});) |
| 210 | DEF_BENCH(return (new SkVMBench{ 16, F32});) |
| 211 | DEF_BENCH(return (new SkVMBench{ 64, F32});) |
| 212 | DEF_BENCH(return (new SkVMBench{ 256, F32});) |
| 213 | DEF_BENCH(return (new SkVMBench{1024, F32});) |
| 214 | DEF_BENCH(return (new SkVMBench{4096, F32});) |
| 215 | |
| 216 | DEF_BENCH(return (new SkVMBench{ 1, I32});) |
| 217 | DEF_BENCH(return (new SkVMBench{ 4, I32});) |
| 218 | DEF_BENCH(return (new SkVMBench{ 16, I32});) |
| 219 | DEF_BENCH(return (new SkVMBench{ 64, I32});) |
| 220 | DEF_BENCH(return (new SkVMBench{ 256, I32});) |
| 221 | DEF_BENCH(return (new SkVMBench{1024, I32});) |
| 222 | DEF_BENCH(return (new SkVMBench{4096, I32});) |
| 223 | |
| 224 | DEF_BENCH(return (new SkVMBench{ 1, I32_SWAR});) |
| 225 | DEF_BENCH(return (new SkVMBench{ 4, I32_SWAR});) |
| 226 | DEF_BENCH(return (new SkVMBench{ 16, I32_SWAR});) |
| 227 | DEF_BENCH(return (new SkVMBench{ 64, I32_SWAR});) |
| 228 | DEF_BENCH(return (new SkVMBench{ 256, I32_SWAR});) |
| 229 | DEF_BENCH(return (new SkVMBench{1024, I32_SWAR});) |
| 230 | DEF_BENCH(return (new SkVMBench{4096, I32_SWAR});) |