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Optimize mipmap downsample_2_2 in sRGB mode

Browse Source 
Desktop (HP z620)
Before:
mipmap_build_2048x2048_0_gamma 10.5 ms
mipmap_build_2048x2048_1_gamma 77.1 ms
After:
mipmap_build_2048x2048_0_gamma 10.5 ms
mipmap_build_2048x2048_1_gamma 25.1 ms

Pixel XL
Before:
mipmap_build_2048x2048_0_gamma 160 ms
mipmap_build_2048x2048_1_gamma 1.5 s
After:
mipmap_build_2048x2048_0_gamma 160 ms
mipmap_build_2048x2048_1_gamma 313 ms

Also provides marginal performance improvements
for other sRGB downsamples.

BUG=skia:

Change-Id: Icfcd2ccd69676ccf3822db8042a4698e4464bb71
Reviewed-on: https://skia-review.googlesource.com/9386
Commit-Queue: Matt Sarett <msarett@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
This commit is contained in:
Matt Sarett 2017-03-08 09:53:41 -05:00 committed by Skia Commit-Bot
parent 135555101c
commit 3ea01f72f2
4 changed files with 338 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
bench/MipMapBench.cpp
View File

@ -65,3 +65,6 @@ DEF_BENCH( return new MipMapBench(511, 511,
SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware); )
DEF_BENCH( return new MipMapBench(512, 512, SkDestinationSurfaceColorMode::kLegacy, true); )
DEF_BENCH( return new MipMapBench(511, 511, SkDestinationSurfaceColorMode::kLegacy, true); )
DEF_BENCH( return new MipMapBench(2048, 2048, SkDestinationSurfaceColorMode::kLegacy); )
DEF_BENCH( return new MipMapBench(2048, 2048,
SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware); )

88
src/core/SkMipMap.cpp
View File

@ -12,6 +12,7 @@
#include "SkMathPriv.h"
#include "SkNx.h"
#include "SkPM4fPriv.h"
#include "SkSRGB.h"
#include "SkTypes.h"
//
@ -35,11 +36,17 @@ struct ColorTypeFilter_8888 {
struct ColorTypeFilter_S32 {
typedef uint32_t Type;
static Sk4f Expand(uint32_t x) {
return Sk4f_fromS32(x);
static Sk4h Expand(uint32_t x) {
return Sk4h(sk_linear12_from_srgb[(x ) & 0xFF],
sk_linear12_from_srgb[(x >> 8) & 0xFF],
sk_linear12_from_srgb[(x >> 16) & 0xFF],
(x >> 24) << 4);
}
static uint32_t Compact(const Sk4f& x) {
return Sk4f_toS32(x);
static uint32_t Compact(const Sk4h& x) {
return sk_linear12_to_srgb[x[0]] |
sk_linear12_to_srgb[x[1]] << 8 |
sk_linear12_to_srgb[x[2]] << 16 |
(x[3] >> 4) << 24;
}
};
@ -286,6 +293,77 @@ template <typename F> void downsample_3_3(void* dst, const void* src, size_t src
///////////////////////////////////////////////////////////////////////////////////////////////////
// Some sRGB specific performance optimizations.
void downsample_2_2_srgb(void* dst, const void* src, size_t srcRB, int count) {
const uint8_t* p0 = ((const uint8_t*) src);
const uint8_t* p1 = ((const uint8_t*) src) + srcRB;
uint8_t* d = (uint8_t*) dst;
// Given pixels:
// a0 b0 c0 d0 ...
// a1 b1 c1 d1 ...
// We want:
// (a0 + b0 + a1 + b1) / 4
// (c0 + d0 + c1 + d1) / 4
// ...
while (count >= 4) {
Sk8h a0c0 = Sk8h(sk_linear12_from_srgb[p0[ 0]],
sk_linear12_from_srgb[p0[ 1]],
sk_linear12_from_srgb[p0[ 2]],
p0[ 3] << 4 ,
sk_linear12_from_srgb[p0[ 8]],
sk_linear12_from_srgb[p0[ 9]],
sk_linear12_from_srgb[p0[10]],
p0[11] << 4 );
Sk8h b0d0 = Sk8h(sk_linear12_from_srgb[p0[ 4]],
sk_linear12_from_srgb[p0[ 5]],
sk_linear12_from_srgb[p0[ 6]],
p0[ 7] << 4 ,
sk_linear12_from_srgb[p0[12]],
sk_linear12_from_srgb[p0[13]],
sk_linear12_from_srgb[p0[14]],
p0[15] << 4 );
Sk8h a1c1 = Sk8h(sk_linear12_from_srgb[p1[ 0]],
sk_linear12_from_srgb[p1[ 1]],
sk_linear12_from_srgb[p1[ 2]],
p1[ 3] << 4 ,
sk_linear12_from_srgb[p1[ 8]],
sk_linear12_from_srgb[p1[ 9]],
sk_linear12_from_srgb[p1[10]],
p1[11] << 4 );
Sk8h b1d1 = Sk8h(sk_linear12_from_srgb[p1[ 4]],
sk_linear12_from_srgb[p1[ 5]],
sk_linear12_from_srgb[p1[ 6]],
p1[ 7] << 4 ,
sk_linear12_from_srgb[p1[12]],
sk_linear12_from_srgb[p1[13]],
sk_linear12_from_srgb[p1[14]],
p1[15] << 4 );
Sk8h avg = (a0c0 + b0d0 + a1c1 + b1d1) >> 2;
d[0] = sk_linear12_to_srgb[avg[0]];
d[1] = sk_linear12_to_srgb[avg[1]];
d[2] = sk_linear12_to_srgb[avg[2]];
d[3] = avg[3] >> 4;
d[4] = sk_linear12_to_srgb[avg[4]];
d[5] = sk_linear12_to_srgb[avg[5]];
d[6] = sk_linear12_to_srgb[avg[6]];
d[7] = avg[7] >> 4;
p0 += 16;
p1 += 16;
d += 8;
count -= 4;
}
if (count) {
downsample_2_2<ColorTypeFilter_S32>(d, p0, srcRB, count);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
size_t SkMipMap::AllocLevelsSize(int levelCount, size_t pixelSize) {
if (levelCount < 0) {
return 0;
@ -322,7 +400,7 @@ SkMipMap* SkMipMap::Build(const SkPixmap& src, SkDestinationSurfaceColorMode col
proc_1_2 = downsample_1_2<ColorTypeFilter_S32>;
proc_1_3 = downsample_1_3<ColorTypeFilter_S32>;
proc_2_1 = downsample_2_1<ColorTypeFilter_S32>;
proc_2_2 = downsample_2_2<ColorTypeFilter_S32>;
proc_2_2 = downsample_2_2_srgb;
proc_2_3 = downsample_2_3<ColorTypeFilter_S32>;
proc_3_1 = downsample_3_1<ColorTypeFilter_S32>;
proc_3_2 = downsample_3_2<ColorTypeFilter_S32>;

249
src/core/SkSRGB.cpp
View File

@ -73,3 +73,252 @@ const float sk_linear_from_srgb[256] = {
0.938685728457888000f, 0.947306536733200000f, 0.955973353249286000f, 0.964686247894465000f,
0.973445290398413000f, 0.982250550333117000f, 0.991102097113830000f, 1.000000000000000000f,
};
/*
* Converts sRGB encoded bytes to a 12-bit linear representation.
*/
const uint16_t sk_linear12_from_srgb[256] = {
0, 1, 2, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37,
40, 42, 45, 48, 50, 53, 56, 59, 62, 66, 69, 72, 76, 79, 83, 87, 91, 95, 99, 103, 107, 112,
116, 121, 126, 131, 136, 141, 146, 151, 156, 162, 168, 173, 179, 185, 191, 197, 204, 210,
216, 223, 230, 237, 244, 251, 258, 265, 273, 280, 288, 296, 304, 312, 320, 329, 337, 346,
354, 363, 372, 381, 390, 400, 409, 419, 428, 438, 448, 458, 469, 479, 490, 500, 511, 522,
533, 544, 555, 567, 578, 590, 602, 614, 626, 639, 651, 664, 676, 689, 702, 715, 728, 742,
755, 769, 783, 797, 811, 825, 840, 854, 869, 884, 899, 914, 929, 945, 960, 976, 992, 1008,
1024, 1041, 1057, 1074, 1091, 1108, 1125, 1142, 1159, 1177, 1195, 1213, 1231, 1249, 1267,
1286, 1304, 1323, 1342, 1361, 1381, 1400, 1420, 1440, 1459, 1480, 1500, 1520, 1541, 1562,
1582, 1603, 1625, 1646, 1668, 1689, 1711, 1733, 1755, 1778, 1800, 1823, 1846, 1869, 1892,
1916, 1939, 1963, 1987, 2011, 2035, 2059, 2084, 2109, 2133, 2159, 2184, 2209, 2235, 2260,
2286, 2312, 2339, 2365, 2392, 2419, 2446, 2473, 2500, 2527, 2555, 2583, 2611, 2639, 2668,
2696, 2725, 2754, 2783, 2812, 2841, 2871, 2901, 2931, 2961, 2991, 3022, 3052, 3083, 3114,
3146, 3177, 3209, 3240, 3272, 3304, 3337, 3369, 3402, 3435, 3468, 3501, 3535, 3568, 3602,
3636, 3670, 3705, 3739, 3774, 3809, 3844, 3879, 3915, 3950, 3986, 4022, 4059, 4095,
};
/*
* Converts 12-bit linear to sRGB encoded bytes.
*/
const uint8_t sk_linear12_to_srgb[4096] = {
0, 1, 2, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 10, 11, 12, 13, 13, 14, 15, 15, 16, 16, 17, 18, 18,
19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 23, 24, 24, 25, 25, 25, 26, 26, 27, 27, 27, 28, 28,
29, 29, 29, 30, 30, 30, 31, 31, 31, 32, 32, 32, 33, 33, 33, 34, 34, 34, 34, 35, 35, 35, 36,
36, 36, 37, 37, 37, 37, 38, 38, 38, 38, 39, 39, 39, 40, 40, 40, 40, 41, 41, 41, 41, 42, 42,
42, 42, 43, 43, 43, 43, 43, 44, 44, 44, 44, 45, 45, 45, 45, 46, 46, 46, 46, 46, 47, 47, 47,
47, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 52, 52,
52, 52, 52, 53, 53, 53, 53, 53, 54, 54, 54, 54, 54, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56,
56, 57, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 59, 59, 59, 59, 59, 59, 60, 60, 60, 60,
60, 60, 61, 61, 61, 61, 61, 61, 62, 62, 62, 62, 62, 62, 63, 63, 63, 63, 63, 63, 64, 64, 64,
64, 64, 64, 64, 65, 65, 65, 65, 65, 65, 66, 66, 66, 66, 66, 66, 66, 67, 67, 67, 67, 67, 67,
67, 68, 68, 68, 68, 68, 68, 68, 69, 69, 69, 69, 69, 69, 69, 70, 70, 70, 70, 70, 70, 70, 71,
71, 71, 71, 71, 71, 71, 72, 72, 72, 72, 72, 72, 72, 72, 73, 73, 73, 73, 73, 73, 73, 74, 74,
74, 74, 74, 74, 74, 74, 75, 75, 75, 75, 75, 75, 75, 75, 76, 76, 76, 76, 76, 76, 76, 77, 77,
77, 77, 77, 77, 77, 77, 78, 78, 78, 78, 78, 78, 78, 78, 78, 79, 79, 79, 79, 79, 79, 79, 79,
80, 80, 80, 80, 80, 80, 80, 80, 81, 81, 81, 81, 81, 81, 81, 81, 81, 82, 82, 82, 82, 82, 82,
82, 82, 83, 83, 83, 83, 83, 83, 83, 83, 83, 84, 84, 84, 84, 84, 84, 84, 84, 84, 85, 85, 85,
85, 85, 85, 85, 85, 85, 86, 86, 86, 86, 86, 86, 86, 86, 86, 87, 87, 87, 87, 87, 87, 87, 87,
87, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 89, 89, 89, 89, 89, 89, 89, 89, 89, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 92, 92, 92, 92, 92, 92,
92, 92, 92, 92, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 94, 94, 94, 94, 94, 94, 94, 94, 94,
94, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 97,
97, 97, 97, 97, 97, 97, 97, 97, 97, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 101,
101, 101, 101, 101, 101, 101, 101, 101, 101, 101, 102, 102, 102, 102, 102, 102, 102, 102,
102, 102, 102, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 104, 104, 104,
104, 104, 104, 104, 104, 104, 104, 104, 105, 105, 105, 105, 105, 105, 105, 105, 105, 105,
105, 105, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 107, 107, 107, 107,
107, 107, 107, 107, 107, 107, 107, 107, 108, 108, 108, 108, 108, 108, 108, 108, 108, 108,
108, 108, 109, 109, 109, 109, 109, 109, 109, 109, 109, 109, 109, 109, 110, 110, 110, 110,
110, 110, 110, 110, 110, 110, 110, 110, 111, 111, 111, 111, 111, 111, 111, 111, 111, 111,
111, 111, 111, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 113, 113, 113,
113, 113, 113, 113, 113, 113, 113, 113, 113, 113, 114, 114, 114, 114, 114, 114, 114, 114,
114, 114, 114, 114, 114, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116, 116, 116, 116, 117, 117, 117, 117, 117,
117, 117, 117, 117, 117, 117, 117, 117, 117, 118, 118, 118, 118, 118, 118, 118, 118, 118,
118, 118, 118, 118, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
120, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120, 121, 121, 121, 121,
121, 121, 121, 121, 121, 121, 121, 121, 121, 122, 122, 122, 122, 122, 122, 122, 122, 122,
122, 122, 122, 122, 122, 122, 123, 123, 123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
123, 123, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 125, 125,
125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 126, 126, 126, 126, 126,
126, 126, 126, 126, 126, 126, 126, 126, 126, 127, 127, 127, 127, 127, 127, 127, 127, 127,
127, 127, 127, 127, 127, 127, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129,
130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 130, 131, 131, 131,
131, 131, 131, 131, 131, 131, 131, 131, 131, 131, 131, 131, 131, 132, 132, 132, 132, 132,
132, 132, 132, 132, 132, 132, 132, 132, 132, 132, 133, 133, 133, 133, 133, 133, 133, 133,
133, 133, 133, 133, 133, 133, 133, 133, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
134, 134, 134, 134, 134, 134, 135, 135, 135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
135, 135, 135, 135, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136, 136,
136, 136, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137, 137,
138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 138, 139, 139,
139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 140, 140, 140,
140, 140, 140, 140, 140, 140, 140, 140, 140, 140, 140, 140, 140, 140, 141, 141, 141, 141,
141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 142, 142, 142, 142, 142,
142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 142, 143, 143, 143, 143, 143, 143,
143, 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, 144, 144, 144, 144, 144, 144, 144,
144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 145, 145, 145, 145, 145, 145, 145, 145,
145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 146, 146, 146, 146, 146, 146, 146, 146,
146, 146, 146, 146, 146, 146, 146, 146, 146, 147, 147, 147, 147, 147, 147, 147, 147, 147,
147, 147, 147, 147, 147, 147, 147, 147, 147, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 149, 149, 149, 149, 149, 149, 149, 149, 149,
149, 149, 149, 149, 149, 149, 149, 149, 149, 150, 150, 150, 150, 150, 150, 150, 150, 150,
150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 151, 151, 151, 151, 151, 151, 151, 151,
151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 152, 152, 152, 152, 152, 152, 152, 152,
152, 152, 152, 152, 152, 152, 152, 152, 152, 152, 152, 153, 153, 153, 153, 153, 153, 153,
153, 153, 153, 153, 153, 153, 153, 153, 153, 153, 153, 154, 154, 154, 154, 154, 154, 154,
154, 154, 154, 154, 154, 154, 154, 154, 154, 154, 154, 154, 155, 155, 155, 155, 155, 155,
155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 156, 156, 156, 156, 156,
156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 157, 157, 157,
157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 158, 158,
158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 159,
159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159, 159,
159, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160, 160,
160, 160, 160, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161,
161, 161, 161, 161, 161, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
162, 162, 162, 162, 162, 162, 162, 163, 163, 163, 163, 163, 163, 163, 163, 163, 163, 163,
163, 163, 163, 163, 163, 163, 163, 163, 163, 164, 164, 164, 164, 164, 164, 164, 164, 164,
164, 164, 164, 164, 164, 164, 164, 164, 164, 164, 164, 164, 165, 165, 165, 165, 165, 165,
165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 165, 166, 166, 166,
166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 167,
167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167,
167, 167, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168,
168, 168, 168, 168, 168, 168, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169,
169, 169, 169, 169, 169, 169, 169, 169, 169, 170, 170, 170, 170, 170, 170, 170, 170, 170,
170, 170, 170, 170, 170, 170, 170, 170, 170, 170, 170, 170, 171, 171, 171, 171, 171, 171,
171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 171, 172, 172,
172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172,
172, 172, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173,
173, 173, 173, 173, 173, 173, 174, 174, 174, 174, 174, 174, 174, 174, 174, 174, 174, 174,
174, 174, 174, 174, 174, 174, 174, 174, 174, 174, 175, 175, 175, 175, 175, 175, 175, 175,
175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 176, 176, 176, 176,
176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176,
176, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177, 177,
177, 177, 177, 177, 177, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178,
178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 179, 179, 179, 179, 179, 179, 179, 179,
179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 180, 180, 180,
180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180,
180, 180, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
181, 181, 181, 181, 181, 181, 181, 182, 182, 182, 182, 182, 182, 182, 182, 182, 182, 182,
182, 182, 182, 182, 182, 182, 182, 182, 182, 182, 182, 182, 182, 183, 183, 183, 183, 183,
183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184, 184,
184, 184, 184, 184, 184, 184, 185, 185, 185, 185, 185, 185, 185, 185, 185, 185, 185, 185,
185, 185, 185, 185, 185, 185, 185, 185, 185, 185, 185, 185, 186, 186, 186, 186, 186, 186,
186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186,
187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187, 187,
187, 187, 187, 187, 187, 187, 187, 188, 188, 188, 188, 188, 188, 188, 188, 188, 188, 188,
188, 188, 188, 188, 188, 188, 188, 188, 188, 188, 188, 188, 188, 189, 189, 189, 189, 189,
189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189, 189,
189, 189, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190,
190, 190, 190, 190, 190, 190, 190, 190, 190, 191, 191, 191, 191, 191, 191, 191, 191, 191,
191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 192, 192, 192,
192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
192, 192, 192, 192, 192, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193,
193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 194, 194, 194, 194, 194, 194,
194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194, 194,
194, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195, 195,
195, 195, 195, 195, 195, 195, 195, 195, 195, 196, 196, 196, 196, 196, 196, 196, 196, 196,
196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 196, 197,
197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197,
197, 197, 197, 197, 197, 197, 197, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198,
198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 198, 199, 199, 199,
199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199,
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255, 255, 255,
};

4
src/core/SkSRGB.h
View File

@ -20,7 +20,9 @@
* sk_linear_to_srgb() will run a little faster than usual when compiled with SSE4.1+.
*/
extern const float sk_linear_from_srgb[256];
extern const float sk_linear_from_srgb[256];
extern const uint16_t sk_linear12_from_srgb[256];
extern const uint8_t sk_linear12_to_srgb[4096];
template <typename V>
static inline V sk_clamp_0_255(const V& x) {