gfx/cairo/libpixman/src/pixman-combine64.h@b8a032363ba2 (annotated)
gfx/cairo/libpixman/src/pixman-combine64.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* WARNING: This file is generated by combine.pl from combine.inc. |
| michael@0 | 2 | Please edit one of those files rather than this one. */ |
| michael@0 | 3 | |
| michael@0 | 4 | #line 1 "pixman-combine.c.template" |
| michael@0 | 5 | |
| michael@0 | 6 | #define COMPONENT_SIZE 16 |
| michael@0 | 7 | #define MASK 0xffffULL |
| michael@0 | 8 | #define ONE_HALF 0x8000ULL |
| michael@0 | 9 | |
| michael@0 | 10 | #define A_SHIFT 16 * 3 |
| michael@0 | 11 | #define R_SHIFT 16 * 2 |
| michael@0 | 12 | #define G_SHIFT 16 |
| michael@0 | 13 | #define A_MASK 0xffff000000000000ULL |
| michael@0 | 14 | #define R_MASK 0xffff00000000ULL |
| michael@0 | 15 | #define G_MASK 0xffff0000ULL |
| michael@0 | 16 | |
| michael@0 | 17 | #define RB_MASK 0xffff0000ffffULL |
| michael@0 | 18 | #define AG_MASK 0xffff0000ffff0000ULL |
| michael@0 | 19 | #define RB_ONE_HALF 0x800000008000ULL |
| michael@0 | 20 | #define RB_MASK_PLUS_ONE 0x10000000010000ULL |
| michael@0 | 21 | |
| michael@0 | 22 | #define ALPHA_16(x) ((x) >> A_SHIFT) |
| michael@0 | 23 | #define RED_16(x) (((x) >> R_SHIFT) & MASK) |
| michael@0 | 24 | #define GREEN_16(x) (((x) >> G_SHIFT) & MASK) |
| michael@0 | 25 | #define BLUE_16(x) ((x) & MASK) |
| michael@0 | 26 | |
| michael@0 | 27 | /* |
| michael@0 | 28 | * Helper macros. |
| michael@0 | 29 | */ |
| michael@0 | 30 | |
| michael@0 | 31 | #define MUL_UN16(a, b, t) \ |
| michael@0 | 32 | ((t) = (a) * (uint32_t)(b) + ONE_HALF, ((((t) >> G_SHIFT ) + (t) ) >> G_SHIFT )) |
| michael@0 | 33 | |
| michael@0 | 34 | #define DIV_UN16(a, b) \ |
| michael@0 | 35 | (((uint32_t) (a) * MASK + ((b) / 2)) / (b)) |
| michael@0 | 36 | |
| michael@0 | 37 | #define ADD_UN16(x, y, t) \ |
| michael@0 | 38 | ((t) = (x) + (y), \ |
| michael@0 | 39 | (uint64_t) (uint16_t) ((t) | (0 - ((t) >> G_SHIFT)))) |
| michael@0 | 40 | |
| michael@0 | 41 | #define DIV_ONE_UN16(x) \ |
| michael@0 | 42 | (((x) + ONE_HALF + (((x) + ONE_HALF) >> G_SHIFT)) >> G_SHIFT) |
| michael@0 | 43 | |
| michael@0 | 44 | /* |
| michael@0 | 45 | * The methods below use some tricks to be able to do two color |
| michael@0 | 46 | * components at the same time. |
| michael@0 | 47 | */ |
| michael@0 | 48 | |
| michael@0 | 49 | /* |
| michael@0 | 50 | * x_rb = (x_rb * a) / 255 |
| michael@0 | 51 | */ |
| michael@0 | 52 | #define UN16_rb_MUL_UN16(x, a, t) \ |
| michael@0 | 53 | do \ |
| michael@0 | 54 | { \ |
| michael@0 | 55 | t = ((x) & RB_MASK) * (a); \ |
| michael@0 | 56 | t += RB_ONE_HALF; \ |
| michael@0 | 57 | x = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \ |
| michael@0 | 58 | x &= RB_MASK; \ |
| michael@0 | 59 | } while (0) |
| michael@0 | 60 | |
| michael@0 | 61 | /* |
| michael@0 | 62 | * x_rb = min (x_rb + y_rb, 255) |
| michael@0 | 63 | */ |
| michael@0 | 64 | #define UN16_rb_ADD_UN16_rb(x, y, t) \ |
| michael@0 | 65 | do \ |
| michael@0 | 66 | { \ |
| michael@0 | 67 | t = ((x) + (y)); \ |
| michael@0 | 68 | t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \ |
| michael@0 | 69 | x = (t & RB_MASK); \ |
| michael@0 | 70 | } while (0) |
| michael@0 | 71 | |
| michael@0 | 72 | /* |
| michael@0 | 73 | * x_rb = (x_rb * a_rb) / 255 |
| michael@0 | 74 | */ |
| michael@0 | 75 | #define UN16_rb_MUL_UN16_rb(x, a, t) \ |
| michael@0 | 76 | do \ |
| michael@0 | 77 | { \ |
| michael@0 | 78 | t = (x & MASK) * (a & MASK); \ |
| michael@0 | 79 | t |= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \ |
| michael@0 | 80 | t += RB_ONE_HALF; \ |
| michael@0 | 81 | t = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \ |
| michael@0 | 82 | x = t & RB_MASK; \ |
| michael@0 | 83 | } while (0) |
| michael@0 | 84 | |
| michael@0 | 85 | /* |
| michael@0 | 86 | * x_c = (x_c * a) / 255 |
| michael@0 | 87 | */ |
| michael@0 | 88 | #define UN16x4_MUL_UN16(x, a) \ |
| michael@0 | 89 | do \ |
| michael@0 | 90 | { \ |
| michael@0 | 91 | uint64_t r1__, r2__, t__; \ |
| michael@0 | 92 | \ |
| michael@0 | 93 | r1__ = (x); \ |
| michael@0 | 94 | UN16_rb_MUL_UN16 (r1__, (a), t__); \ |
| michael@0 | 95 | \ |
| michael@0 | 96 | r2__ = (x) >> G_SHIFT; \ |
| michael@0 | 97 | UN16_rb_MUL_UN16 (r2__, (a), t__); \ |
| michael@0 | 98 | \ |
| michael@0 | 99 | (x) = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 100 | } while (0) |
| michael@0 | 101 | |
| michael@0 | 102 | /* |
| michael@0 | 103 | * x_c = (x_c * a) / 255 + y_c |
| michael@0 | 104 | */ |
| michael@0 | 105 | #define UN16x4_MUL_UN16_ADD_UN16x4(x, a, y) \ |
| michael@0 | 106 | do \ |
| michael@0 | 107 | { \ |
| michael@0 | 108 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 109 | \ |
| michael@0 | 110 | r1__ = (x); \ |
| michael@0 | 111 | r2__ = (y) & RB_MASK; \ |
| michael@0 | 112 | UN16_rb_MUL_UN16 (r1__, (a), t__); \ |
| michael@0 | 113 | UN16_rb_ADD_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 114 | \ |
| michael@0 | 115 | r2__ = (x) >> G_SHIFT; \ |
| michael@0 | 116 | r3__ = ((y) >> G_SHIFT) & RB_MASK; \ |
| michael@0 | 117 | UN16_rb_MUL_UN16 (r2__, (a), t__); \ |
| michael@0 | 118 | UN16_rb_ADD_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 119 | \ |
| michael@0 | 120 | (x) = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 121 | } while (0) |
| michael@0 | 122 | |
| michael@0 | 123 | /* |
| michael@0 | 124 | * x_c = (x_c * a + y_c * b) / 255 |
| michael@0 | 125 | */ |
| michael@0 | 126 | #define UN16x4_MUL_UN16_ADD_UN16x4_MUL_UN16(x, a, y, b) \ |
| michael@0 | 127 | do \ |
| michael@0 | 128 | { \ |
| michael@0 | 129 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 130 | \ |
| michael@0 | 131 | r1__ = (x); \ |
| michael@0 | 132 | r2__ = (y); \ |
| michael@0 | 133 | UN16_rb_MUL_UN16 (r1__, (a), t__); \ |
| michael@0 | 134 | UN16_rb_MUL_UN16 (r2__, (b), t__); \ |
| michael@0 | 135 | UN16_rb_ADD_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 136 | \ |
| michael@0 | 137 | r2__ = ((x) >> G_SHIFT); \ |
| michael@0 | 138 | r3__ = ((y) >> G_SHIFT); \ |
| michael@0 | 139 | UN16_rb_MUL_UN16 (r2__, (a), t__); \ |
| michael@0 | 140 | UN16_rb_MUL_UN16 (r3__, (b), t__); \ |
| michael@0 | 141 | UN16_rb_ADD_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 142 | \ |
| michael@0 | 143 | (x) = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 144 | } while (0) |
| michael@0 | 145 | |
| michael@0 | 146 | /* |
| michael@0 | 147 | * x_c = (x_c * a_c) / 255 |
| michael@0 | 148 | */ |
| michael@0 | 149 | #define UN16x4_MUL_UN16x4(x, a) \ |
| michael@0 | 150 | do \ |
| michael@0 | 151 | { \ |
| michael@0 | 152 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 153 | \ |
| michael@0 | 154 | r1__ = (x); \ |
| michael@0 | 155 | r2__ = (a); \ |
| michael@0 | 156 | UN16_rb_MUL_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 157 | \ |
| michael@0 | 158 | r2__ = (x) >> G_SHIFT; \ |
| michael@0 | 159 | r3__ = (a) >> G_SHIFT; \ |
| michael@0 | 160 | UN16_rb_MUL_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 161 | \ |
| michael@0 | 162 | (x) = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 163 | } while (0) |
| michael@0 | 164 | |
| michael@0 | 165 | /* |
| michael@0 | 166 | * x_c = (x_c * a_c) / 255 + y_c |
| michael@0 | 167 | */ |
| michael@0 | 168 | #define UN16x4_MUL_UN16x4_ADD_UN16x4(x, a, y) \ |
| michael@0 | 169 | do \ |
| michael@0 | 170 | { \ |
| michael@0 | 171 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 172 | \ |
| michael@0 | 173 | r1__ = (x); \ |
| michael@0 | 174 | r2__ = (a); \ |
| michael@0 | 175 | UN16_rb_MUL_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 176 | r2__ = (y) & RB_MASK; \ |
| michael@0 | 177 | UN16_rb_ADD_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 178 | \ |
| michael@0 | 179 | r2__ = ((x) >> G_SHIFT); \ |
| michael@0 | 180 | r3__ = ((a) >> G_SHIFT); \ |
| michael@0 | 181 | UN16_rb_MUL_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 182 | r3__ = ((y) >> G_SHIFT) & RB_MASK; \ |
| michael@0 | 183 | UN16_rb_ADD_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 184 | \ |
| michael@0 | 185 | (x) = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 186 | } while (0) |
| michael@0 | 187 | |
| michael@0 | 188 | /* |
| michael@0 | 189 | * x_c = (x_c * a_c + y_c * b) / 255 |
| michael@0 | 190 | */ |
| michael@0 | 191 | #define UN16x4_MUL_UN16x4_ADD_UN16x4_MUL_UN16(x, a, y, b) \ |
| michael@0 | 192 | do \ |
| michael@0 | 193 | { \ |
| michael@0 | 194 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 195 | \ |
| michael@0 | 196 | r1__ = (x); \ |
| michael@0 | 197 | r2__ = (a); \ |
| michael@0 | 198 | UN16_rb_MUL_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 199 | r2__ = (y); \ |
| michael@0 | 200 | UN16_rb_MUL_UN16 (r2__, (b), t__); \ |
| michael@0 | 201 | UN16_rb_ADD_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 202 | \ |
| michael@0 | 203 | r2__ = (x) >> G_SHIFT; \ |
| michael@0 | 204 | r3__ = (a) >> G_SHIFT; \ |
| michael@0 | 205 | UN16_rb_MUL_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 206 | r3__ = (y) >> G_SHIFT; \ |
| michael@0 | 207 | UN16_rb_MUL_UN16 (r3__, (b), t__); \ |
| michael@0 | 208 | UN16_rb_ADD_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 209 | \ |
| michael@0 | 210 | x = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 211 | } while (0) |
| michael@0 | 212 | |
| michael@0 | 213 | /* |
| michael@0 | 214 | x_c = min(x_c + y_c, 255) |
| michael@0 | 215 | */ |
| michael@0 | 216 | #define UN16x4_ADD_UN16x4(x, y) \ |
| michael@0 | 217 | do \ |
| michael@0 | 218 | { \ |
| michael@0 | 219 | uint64_t r1__, r2__, r3__, t__; \ |
| michael@0 | 220 | \ |
| michael@0 | 221 | r1__ = (x) & RB_MASK; \ |
| michael@0 | 222 | r2__ = (y) & RB_MASK; \ |
| michael@0 | 223 | UN16_rb_ADD_UN16_rb (r1__, r2__, t__); \ |
| michael@0 | 224 | \ |
| michael@0 | 225 | r2__ = ((x) >> G_SHIFT) & RB_MASK; \ |
| michael@0 | 226 | r3__ = ((y) >> G_SHIFT) & RB_MASK; \ |
| michael@0 | 227 | UN16_rb_ADD_UN16_rb (r2__, r3__, t__); \ |
| michael@0 | 228 | \ |
| michael@0 | 229 | x = r1__ | (r2__ << G_SHIFT); \ |
| michael@0 | 230 | } while (0) |
