mtklein | 281b33f | 2016-07-12 15:01:26 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 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 "Benchmark.h" |
| 9 | #include "SkRasterPipeline.h" |
| 10 | #include "SkSRGB.h" |
| 11 | |
| 12 | static const int N = 1023; |
| 13 | |
| 14 | static uint32_t dst[N], |
| 15 | src[N]; |
| 16 | static uint8_t mask[N]; |
| 17 | |
| 18 | // We'll build up a somewhat realistic useful pipeline: |
| 19 | // - load srgb src |
| 20 | // - scale src by 8-bit mask |
| 21 | // - load srgb dst |
| 22 | // - src = srcover(dst, src) |
| 23 | // - store src back as srgb |
| 24 | // Every stage except for srcover interacts with memory, and so will need _tail variants. |
| 25 | |
| 26 | static void SK_VECTORCALL load_s_srgb(SkRasterPipeline::Stage* st, size_t x, |
| 27 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 28 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 29 | auto ptr = st->ctx<const uint32_t*>() + x; |
| 30 | |
| 31 | r = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 0) & 0xff], |
| 32 | sk_linear_from_srgb[(ptr[1] >> 0) & 0xff], |
| 33 | sk_linear_from_srgb[(ptr[2] >> 0) & 0xff], |
| 34 | sk_linear_from_srgb[(ptr[3] >> 0) & 0xff] }; |
| 35 | |
| 36 | g = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 8) & 0xff], |
| 37 | sk_linear_from_srgb[(ptr[1] >> 8) & 0xff], |
| 38 | sk_linear_from_srgb[(ptr[2] >> 8) & 0xff], |
| 39 | sk_linear_from_srgb[(ptr[3] >> 8) & 0xff] }; |
| 40 | |
| 41 | b = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 16) & 0xff], |
| 42 | sk_linear_from_srgb[(ptr[1] >> 16) & 0xff], |
| 43 | sk_linear_from_srgb[(ptr[2] >> 16) & 0xff], |
| 44 | sk_linear_from_srgb[(ptr[3] >> 16) & 0xff] }; |
| 45 | |
| 46 | a = SkNx_cast<float>((Sk4i::Load(ptr) >> 24) & 0xff) * (1/255.0f); |
| 47 | |
| 48 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 49 | } |
| 50 | |
| 51 | static void SK_VECTORCALL load_s_srgb_tail(SkRasterPipeline::Stage* st, size_t x, |
| 52 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 53 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 54 | auto ptr = st->ctx<const uint32_t*>() + x; |
| 55 | |
| 56 | r = Sk4f{ sk_linear_from_srgb[(*ptr >> 0) & 0xff], 0,0,0 }; |
| 57 | g = Sk4f{ sk_linear_from_srgb[(*ptr >> 8) & 0xff], 0,0,0 }; |
| 58 | b = Sk4f{ sk_linear_from_srgb[(*ptr >> 16) & 0xff], 0,0,0 }; |
| 59 | a = Sk4f{ (*ptr >> 24) * (1/255.0f), 0,0,0 }; |
| 60 | |
| 61 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 62 | } |
| 63 | |
| 64 | static void SK_VECTORCALL load_d_srgb(SkRasterPipeline::Stage* st, size_t x, |
| 65 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 66 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 67 | auto ptr = st->ctx<const uint32_t*>() + x; |
| 68 | |
| 69 | dr = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 0) & 0xff], |
| 70 | sk_linear_from_srgb[(ptr[1] >> 0) & 0xff], |
| 71 | sk_linear_from_srgb[(ptr[2] >> 0) & 0xff], |
| 72 | sk_linear_from_srgb[(ptr[3] >> 0) & 0xff] }; |
| 73 | |
| 74 | dg = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 8) & 0xff], |
| 75 | sk_linear_from_srgb[(ptr[1] >> 8) & 0xff], |
| 76 | sk_linear_from_srgb[(ptr[2] >> 8) & 0xff], |
| 77 | sk_linear_from_srgb[(ptr[3] >> 8) & 0xff] }; |
| 78 | |
| 79 | db = Sk4f{ sk_linear_from_srgb[(ptr[0] >> 16) & 0xff], |
| 80 | sk_linear_from_srgb[(ptr[1] >> 16) & 0xff], |
| 81 | sk_linear_from_srgb[(ptr[2] >> 16) & 0xff], |
| 82 | sk_linear_from_srgb[(ptr[3] >> 16) & 0xff] }; |
| 83 | |
| 84 | da = SkNx_cast<float>((Sk4i::Load(ptr) >> 24) & 0xff) * (1/255.0f); |
| 85 | |
| 86 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 87 | } |
| 88 | |
| 89 | static void SK_VECTORCALL load_d_srgb_tail(SkRasterPipeline::Stage* st, size_t x, |
| 90 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 91 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 92 | auto ptr = st->ctx<const uint32_t*>() + x; |
| 93 | |
| 94 | dr = Sk4f{ sk_linear_from_srgb[(*ptr >> 0) & 0xff], 0,0,0 }; |
| 95 | dg = Sk4f{ sk_linear_from_srgb[(*ptr >> 8) & 0xff], 0,0,0 }; |
| 96 | db = Sk4f{ sk_linear_from_srgb[(*ptr >> 16) & 0xff], 0,0,0 }; |
| 97 | da = Sk4f{ (*ptr >> 24) * (1/255.0f), 0,0,0 }; |
| 98 | |
| 99 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 100 | } |
| 101 | |
| 102 | static void SK_VECTORCALL scale_u8(SkRasterPipeline::Stage* st, size_t x, |
| 103 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 104 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 105 | auto ptr = st->ctx<const uint8_t*>() + x; |
| 106 | |
| 107 | auto c = SkNx_cast<float>(Sk4b::Load(ptr)) * (1/255.0f); |
| 108 | r *= c; |
| 109 | g *= c; |
| 110 | b *= c; |
| 111 | a *= c; |
| 112 | |
| 113 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 114 | } |
| 115 | |
| 116 | static void SK_VECTORCALL scale_u8_tail(SkRasterPipeline::Stage* st, size_t x, |
| 117 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 118 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 119 | auto ptr = st->ctx<const uint8_t*>() + x; |
| 120 | |
| 121 | auto c = *ptr * (1/255.0f); |
| 122 | r *= c; |
| 123 | g *= c; |
| 124 | b *= c; |
| 125 | a *= c; |
| 126 | |
| 127 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 128 | } |
| 129 | |
| 130 | static void SK_VECTORCALL srcover(SkRasterPipeline::Stage* st, size_t x, |
| 131 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 132 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 133 | auto A = 1.0f - a; |
| 134 | r += dr * A; |
| 135 | g += dg * A; |
| 136 | b += db * A; |
| 137 | a += da * A; |
| 138 | |
| 139 | st->next(x, r,g,b,a, dr,dg,db,da); |
| 140 | } |
| 141 | |
| 142 | static Sk4f clamp(const Sk4f& x) { |
| 143 | return Sk4f::Min(Sk4f::Max(x, 0.0f), 255.0f); |
| 144 | } |
| 145 | |
| 146 | static void SK_VECTORCALL store_srgb(SkRasterPipeline::Stage* st, size_t x, |
| 147 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 148 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 149 | auto ptr = st->ctx<uint32_t*>() + x; |
| 150 | |
| 151 | r = clamp(sk_linear_to_srgb(r)); |
| 152 | g = clamp(sk_linear_to_srgb(g)); |
| 153 | b = clamp(sk_linear_to_srgb(b)); |
| 154 | a = clamp( 255.0f * a ); |
| 155 | |
| 156 | ( SkNx_cast<int>(r) |
| 157 | | SkNx_cast<int>(g) << 8 |
| 158 | | SkNx_cast<int>(b) << 16 |
| 159 | | SkNx_cast<int>(a) << 24 ).store(ptr); |
| 160 | } |
| 161 | |
| 162 | static void SK_VECTORCALL store_srgb_tail(SkRasterPipeline::Stage* st, size_t x, |
| 163 | Sk4f r, Sk4f g, Sk4f b, Sk4f a, |
| 164 | Sk4f dr, Sk4f dg, Sk4f db, Sk4f da) { |
| 165 | auto ptr = st->ctx<uint32_t*>() + x; |
| 166 | |
| 167 | auto rgba = sk_linear_to_srgb({r[0], g[0], b[0], 0}); |
| 168 | rgba = {rgba[0], rgba[1], rgba[2], 255.0f*a[0]}; |
| 169 | rgba = clamp(rgba); |
| 170 | |
| 171 | SkNx_cast<uint8_t>(rgba).store(ptr); |
| 172 | } |
| 173 | |
| 174 | class SkRasterPipelineBench : public Benchmark { |
| 175 | public: |
| 176 | SkRasterPipelineBench() {} |
| 177 | |
| 178 | bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; } |
| 179 | const char* onGetName() override { return "SkRasterPipelineBench"; } |
| 180 | |
| 181 | void onDraw(int loops, SkCanvas*) override { |
| 182 | SkRasterPipeline p; |
| 183 | p.append(load_s_srgb, load_s_srgb_tail, src); |
| 184 | p.append( scale_u8, scale_u8_tail, mask); |
| 185 | p.append(load_d_srgb, load_d_srgb_tail, dst); |
| 186 | p.append(srcover); |
| 187 | p.append( store_srgb, store_srgb_tail, dst); |
| 188 | |
| 189 | while (loops --> 0) { |
| 190 | p.run(N); |
| 191 | } |
| 192 | } |
| 193 | }; |
| 194 | |
| 195 | DEF_BENCH( return new SkRasterPipelineBench; ) |