| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright 2011 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 | |
| 9 #include "GrStencilSettings.h" | |
| 10 | |
| 11 #include "GrProcessor.h" | |
| 12 | |
| 13 constexpr const GrUserStencilSettings gUnused( | |
| 14 GrUserStencilSettings::StaticInit< | |
| 15 0x0000, | |
| 16 GrUserStencilTest::kAlwaysIfInClip, | |
| 17 0xffff, | |
| 18 GrUserStencilOp::kKeep, | |
| 19 GrUserStencilOp::kKeep, | |
| 20 0x0000>() | |
| 21 ); | |
| 22 | |
| 23 GR_STATIC_ASSERT(kAll_StencilFlags == (gUnused.fFrontFlags[0] & gUnused.fBackFla
gs[0])); | |
| 24 | |
| 25 const GrUserStencilSettings& GrUserStencilSettings::kUnused = gUnused; | |
| 26 | |
| 27 void GrStencilSettings::reset(const GrUserStencilSettings& user, bool hasStencil
Clip, | |
| 28 int numStencilBits) { | |
| 29 uint16_t frontFlags = user.fFrontFlags[hasStencilClip]; | |
| 30 if (frontFlags & kSingleSided_StencilFlag) { | |
| 31 fFlags = frontFlags; | |
| 32 if (!this->isDisabled()) { | |
| 33 fFront.reset(user.fFront, hasStencilClip, numStencilBits); | |
| 34 } | |
| 35 return; | |
| 36 } | |
| 37 | |
| 38 uint16_t backFlags = user.fBackFlags[hasStencilClip]; | |
| 39 fFlags = frontFlags & backFlags; | |
| 40 if (this->isDisabled()) { | |
| 41 return; | |
| 42 } | |
| 43 if (!(frontFlags & kDisabled_StencilFlag)) { | |
| 44 fFront.reset(user.fFront, hasStencilClip, numStencilBits); | |
| 45 } else { | |
| 46 fFront.setDisabled(); | |
| 47 } | |
| 48 if (!(backFlags & kDisabled_StencilFlag)) { | |
| 49 fBack.reset(user.fBack, hasStencilClip, numStencilBits); | |
| 50 } else { | |
| 51 fBack.setDisabled(); | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 void GrStencilSettings::reset(const GrStencilSettings& that) { | |
| 56 fFlags = that.fFlags; | |
| 57 if ((kInvalid_PrivateFlag | kDisabled_StencilFlag) & fFlags) { | |
| 58 return; | |
| 59 } | |
| 60 if (!this->isTwoSided()) { | |
| 61 memcpy(&fFront, &that.fFront, sizeof(Face)); | |
| 62 } else { | |
| 63 memcpy(&fFront, &that.fFront, 2 * sizeof(Face)); | |
| 64 GR_STATIC_ASSERT(sizeof(Face) == | |
| 65 offsetof(GrStencilSettings, fBack) - offsetof(GrStencil
Settings, fFront)); | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 bool GrStencilSettings::operator==(const GrStencilSettings& that) const { | |
| 70 if ((kInvalid_PrivateFlag | kDisabled_StencilFlag) & (fFlags | that.fFlags))
{ | |
| 71 // At least one is invalid and/or disabled. | |
| 72 if (kInvalid_PrivateFlag & (fFlags | that.fFlags)) { | |
| 73 return false; // We never allow invalid stencils to be equal. | |
| 74 } | |
| 75 // They're only equal if both are disabled. | |
| 76 return kDisabled_StencilFlag & (fFlags & that.fFlags); | |
| 77 } | |
| 78 if (kSingleSided_StencilFlag & (fFlags & that.fFlags)) { | |
| 79 return 0 == memcmp(&fFront, &that.fFront, sizeof(Face)); // Both are sin
gle sided. | |
| 80 } else { | |
| 81 return 0 == memcmp(&fFront, &that.fFront, 2 * sizeof(Face)); | |
| 82 GR_STATIC_ASSERT(sizeof(Face) == | |
| 83 offsetof(GrStencilSettings, fBack) - offsetof(GrStencil
Settings, fFront)); | |
| 84 } | |
| 85 // memcmp relies on GrStencilSettings::Face being tightly packed. | |
| 86 GR_STATIC_ASSERT(0 == offsetof(Face, fRef)); | |
| 87 GR_STATIC_ASSERT(2 == sizeof(Face::fRef)); | |
| 88 GR_STATIC_ASSERT(2 == offsetof(Face, fTest)); | |
| 89 GR_STATIC_ASSERT(2 == sizeof(Face::fTest)); | |
| 90 GR_STATIC_ASSERT(4 == offsetof(Face, fTestMask)); | |
| 91 GR_STATIC_ASSERT(2 == sizeof(Face::fTestMask)); | |
| 92 GR_STATIC_ASSERT(6 == offsetof(Face, fPassOp)); | |
| 93 GR_STATIC_ASSERT(1 == sizeof(Face::fPassOp)); | |
| 94 GR_STATIC_ASSERT(7 == offsetof(Face, fFailOp)); | |
| 95 GR_STATIC_ASSERT(1 == sizeof(Face::fFailOp)); | |
| 96 GR_STATIC_ASSERT(8 == offsetof(Face, fWriteMask)); | |
| 97 GR_STATIC_ASSERT(2 == sizeof(Face::fWriteMask)); | |
| 98 GR_STATIC_ASSERT(10 == sizeof(Face)); | |
| 99 } | |
| 100 | |
| 101 static constexpr GrStencilTest gUserStencilTestToRaw[kGrUserStencilTestCount] =
{ | |
| 102 // Tests that respect the clip. | |
| 103 GrStencilTest::kAlways, // kAlwaysIfInClip (This is only for when there is
not a stencil clip). | |
| 104 GrStencilTest::kEqual, // kEqualIfInClip. | |
| 105 GrStencilTest::kLess, // kLessIfInClip. | |
| 106 GrStencilTest::kLEqual, // kLEqualIfInClip. | |
| 107 | |
| 108 // Tests that ignore the clip. | |
| 109 GrStencilTest::kAlways, | |
| 110 GrStencilTest::kNever, | |
| 111 GrStencilTest::kGreater, | |
| 112 GrStencilTest::kGEqual, | |
| 113 GrStencilTest::kLess, | |
| 114 GrStencilTest::kLEqual, | |
| 115 GrStencilTest::kEqual, | |
| 116 GrStencilTest::kNotEqual | |
| 117 }; | |
| 118 | |
| 119 GR_STATIC_ASSERT(0 == (int)GrUserStencilTest::kAlwaysIfInClip); | |
| 120 GR_STATIC_ASSERT(1 == (int)GrUserStencilTest::kEqualIfInClip); | |
| 121 GR_STATIC_ASSERT(2 == (int)GrUserStencilTest::kLessIfInClip); | |
| 122 GR_STATIC_ASSERT(3 == (int)GrUserStencilTest::kLEqualIfInClip); | |
| 123 GR_STATIC_ASSERT(4 == (int)GrUserStencilTest::kAlways); | |
| 124 GR_STATIC_ASSERT(5 == (int)GrUserStencilTest::kNever); | |
| 125 GR_STATIC_ASSERT(6 == (int)GrUserStencilTest::kGreater); | |
| 126 GR_STATIC_ASSERT(7 == (int)GrUserStencilTest::kGEqual); | |
| 127 GR_STATIC_ASSERT(8 == (int)GrUserStencilTest::kLess); | |
| 128 GR_STATIC_ASSERT(9 == (int)GrUserStencilTest::kLEqual); | |
| 129 GR_STATIC_ASSERT(10 == (int)GrUserStencilTest::kEqual); | |
| 130 GR_STATIC_ASSERT(11 == (int)GrUserStencilTest::kNotEqual); | |
| 131 | |
| 132 static constexpr GrStencilOp gUserStencilOpToRaw[kGrUserStencilOpCount] = { | |
| 133 GrStencilOp::kKeep, | |
| 134 | |
| 135 // Ops that only modify user bits. | |
| 136 GrStencilOp::kZero, | |
| 137 GrStencilOp::kReplace, | |
| 138 GrStencilOp::kInvert, | |
| 139 GrStencilOp::kIncWrap, | |
| 140 GrStencilOp::kDecWrap, | |
| 141 GrStencilOp::kIncClamp, // kIncMaybeClamp. | |
| 142 GrStencilOp::kDecClamp, // kDecMaybeClamp. | |
| 143 | |
| 144 // Ops that only modify the clip bit. | |
| 145 GrStencilOp::kZero, // kZeroClipBit. | |
| 146 GrStencilOp::kReplace, // kSetClipBit. | |
| 147 GrStencilOp::kInvert, // kInvertClipBit. | |
| 148 | |
| 149 // Ops that modify clip and user bits. | |
| 150 GrStencilOp::kReplace, // kSetClipAndReplaceUserBits. | |
| 151 GrStencilOp::kZero // kZeroClipAndUserBits. | |
| 152 }; | |
| 153 | |
| 154 GR_STATIC_ASSERT(0 == (int)GrUserStencilOp::kKeep); | |
| 155 GR_STATIC_ASSERT(1 == (int)GrUserStencilOp::kZero); | |
| 156 GR_STATIC_ASSERT(2 == (int)GrUserStencilOp::kReplace); | |
| 157 GR_STATIC_ASSERT(3 == (int)GrUserStencilOp::kInvert); | |
| 158 GR_STATIC_ASSERT(4 == (int)GrUserStencilOp::kIncWrap); | |
| 159 GR_STATIC_ASSERT(5 == (int)GrUserStencilOp::kDecWrap); | |
| 160 GR_STATIC_ASSERT(6 == (int)GrUserStencilOp::kIncMaybeClamp); | |
| 161 GR_STATIC_ASSERT(7 == (int)GrUserStencilOp::kDecMaybeClamp); | |
| 162 GR_STATIC_ASSERT(8 == (int)GrUserStencilOp::kZeroClipBit); | |
| 163 GR_STATIC_ASSERT(9 == (int)GrUserStencilOp::kSetClipBit); | |
| 164 GR_STATIC_ASSERT(10 == (int)GrUserStencilOp::kInvertClipBit); | |
| 165 GR_STATIC_ASSERT(11 == (int)GrUserStencilOp::kSetClipAndReplaceUserBits); | |
| 166 GR_STATIC_ASSERT(12 == (int)GrUserStencilOp::kZeroClipAndUserBits); | |
| 167 | |
| 168 void GrStencilSettings::Face::reset(const GrUserStencilSettings::Face& user, boo
l hasStencilClip, | |
| 169 int numStencilBits) { | |
| 170 SkASSERT(user.fTest < (GrUserStencilTest)kGrUserStencilTestCount); | |
| 171 SkASSERT(user.fPassOp < (GrUserStencilOp)kGrUserStencilOpCount); | |
| 172 SkASSERT(user.fFailOp < (GrUserStencilOp)kGrUserStencilOpCount); | |
| 173 SkASSERT(numStencilBits <= 16); | |
| 174 int clipBit = 1 << (numStencilBits - 1); | |
| 175 int userMask = clipBit - 1; | |
| 176 | |
| 177 GrUserStencilOp maxOp = SkTMax(user.fPassOp, user.fFailOp); | |
| 178 SkDEBUGCODE(GrUserStencilOp otherOp = SkTMin(user.fPassOp, user.fFailOp);) | |
| 179 if (maxOp <= kLastUserOnlyStencilOp) { | |
| 180 // Ops that only modify user bits. | |
| 181 fWriteMask = user.fWriteMask & userMask; | |
| 182 SkASSERT(otherOp <= kLastUserOnlyStencilOp); | |
| 183 } else if (maxOp <= kLastClipOnlyStencilOp) { | |
| 184 // Ops that only modify the clip bit. | |
| 185 fWriteMask = clipBit; | |
| 186 SkASSERT(GrUserStencilOp::kKeep == otherOp || | |
| 187 (otherOp > kLastUserOnlyStencilOp && otherOp <= kLastClipOnlySt
encilOp)); | |
| 188 } else { | |
| 189 // Ops that modify both clip and user bits. | |
| 190 fWriteMask = clipBit | (user.fWriteMask & userMask); | |
| 191 SkASSERT(GrUserStencilOp::kKeep == otherOp || otherOp > kLastClipOnlySte
ncilOp); | |
| 192 } | |
| 193 | |
| 194 fFailOp = gUserStencilOpToRaw[(int)user.fFailOp]; | |
| 195 fPassOp = gUserStencilOpToRaw[(int)user.fPassOp]; | |
| 196 | |
| 197 if (!hasStencilClip || user.fTest > kLastClippedStencilTest) { | |
| 198 // Ignore the clip. | |
| 199 fTestMask = user.fTestMask & userMask; | |
| 200 fTest = gUserStencilTestToRaw[(int)user.fTest]; | |
| 201 } else if (GrUserStencilTest::kAlwaysIfInClip != user.fTest) { | |
| 202 // Respect the clip. | |
| 203 fTestMask = clipBit | (user.fTestMask & userMask); | |
| 204 fTest = gUserStencilTestToRaw[(int)user.fTest]; | |
| 205 } else { | |
| 206 // Test only for clip. | |
| 207 fTestMask = clipBit; | |
| 208 fTest = GrStencilTest::kEqual; | |
| 209 } | |
| 210 | |
| 211 fRef = (clipBit | user.fRef) & (fTestMask | fWriteMask); | |
| 212 } | |
| 213 | |
| 214 void GrStencilSettings::Face::setDisabled() { | |
| 215 memset(this, 0, sizeof(*this)); | |
| 216 GR_STATIC_ASSERT(0 == (int)GrStencilTest::kAlways); | |
| 217 GR_STATIC_ASSERT(0 == (int)GrStencilOp::kKeep); | |
| 218 } | |
| 219 | |
| 220 //////////////////////////////////////////////////////////////////////////////// | |
| 221 // Stencil Rules for Merging user stencil space into clip | |
| 222 // | |
| 223 | |
| 224 /////// | |
| 225 // Replace | |
| 226 static constexpr GrUserStencilSettings gUserToClipReplace( | |
| 227 GrUserStencilSettings::StaticInit< | |
| 228 0x0000, | |
| 229 GrUserStencilTest::kNotEqual, | |
| 230 0xffff, | |
| 231 GrUserStencilOp::kSetClipAndReplaceUserBits, | |
| 232 GrUserStencilOp::kZeroClipAndUserBits, | |
| 233 0xffff>() | |
| 234 ); | |
| 235 | |
| 236 static constexpr GrUserStencilSettings gInvUserToClipReplace( | |
| 237 GrUserStencilSettings::StaticInit< | |
| 238 0x0000, | |
| 239 GrUserStencilTest::kEqual, | |
| 240 0xffff, | |
| 241 GrUserStencilOp::kSetClipAndReplaceUserBits, | |
| 242 GrUserStencilOp::kZeroClipAndUserBits, | |
| 243 0xffff>() | |
| 244 ); | |
| 245 | |
| 246 /////// | |
| 247 // Intersect | |
| 248 static constexpr GrUserStencilSettings gUserToClipIsect( | |
| 249 GrUserStencilSettings::StaticInit< | |
| 250 0x0000, | |
| 251 GrUserStencilTest::kLessIfInClip, // "0 < userBits" is equivalent to "0
!= userBits". | |
| 252 0xffff, | |
| 253 GrUserStencilOp::kSetClipAndReplaceUserBits, | |
| 254 GrUserStencilOp::kZeroClipAndUserBits, | |
| 255 0xffff>() | |
| 256 ); | |
| 257 | |
| 258 /////// | |
| 259 // Difference | |
| 260 static constexpr GrUserStencilSettings gUserToClipDiff( | |
| 261 GrUserStencilSettings::StaticInit< | |
| 262 0x0000, | |
| 263 GrUserStencilTest::kEqualIfInClip, | |
| 264 0xffff, | |
| 265 GrUserStencilOp::kSetClipAndReplaceUserBits, | |
| 266 GrUserStencilOp::kZeroClipAndUserBits, | |
| 267 0xffff>() | |
| 268 ); | |
| 269 | |
| 270 /////// | |
| 271 // Union | |
| 272 static constexpr GrUserStencilSettings gUserToClipUnion( | |
| 273 GrUserStencilSettings::StaticInit< | |
| 274 0x0000, | |
| 275 GrUserStencilTest::kNotEqual, | |
| 276 0xffff, | |
| 277 GrUserStencilOp::kSetClipAndReplaceUserBits, | |
| 278 GrUserStencilOp::kKeep, | |
| 279 0xffff>() | |
| 280 ); | |
| 281 | |
| 282 static constexpr GrUserStencilSettings gInvUserToClipUnionPass0( // Does not zer
o user bits. | |
| 283 GrUserStencilSettings::StaticInit< | |
| 284 0x0000, | |
| 285 GrUserStencilTest::kEqual, | |
| 286 0xffff, | |
| 287 GrUserStencilOp::kSetClipBit, | |
| 288 GrUserStencilOp::kKeep, | |
| 289 0x0000>() | |
| 290 ); | |
| 291 | |
| 292 /////// | |
| 293 // Xor | |
| 294 static constexpr GrUserStencilSettings gUserToClipXorPass0( // Does not zero use
r bits. | |
| 295 GrUserStencilSettings::StaticInit< | |
| 296 0x0000, | |
| 297 GrUserStencilTest::kNotEqual, | |
| 298 0xffff, | |
| 299 GrUserStencilOp::kInvertClipBit, | |
| 300 GrUserStencilOp::kKeep, | |
| 301 0x0000>() | |
| 302 ); | |
| 303 | |
| 304 static constexpr GrUserStencilSettings gInvUserToClipXorPass0( // Does not zero
user bits. | |
| 305 GrUserStencilSettings::StaticInit< | |
| 306 0x0000, | |
| 307 GrUserStencilTest::kEqual, | |
| 308 0xffff, | |
| 309 GrUserStencilOp::kInvertClipBit, | |
| 310 GrUserStencilOp::kKeep, | |
| 311 0x0000>() | |
| 312 ); | |
| 313 | |
| 314 /////// | |
| 315 // Reverse Diff | |
| 316 static constexpr GrUserStencilSettings gUserToClipRDiffPass0( // Does not zero u
ser bits. | |
| 317 GrUserStencilSettings::StaticInit< | |
| 318 0x0000, | |
| 319 GrUserStencilTest::kNotEqual, | |
| 320 0xffff, | |
| 321 GrUserStencilOp::kInvertClipBit, | |
| 322 GrUserStencilOp::kZeroClipBit, | |
| 323 0x0000>() | |
| 324 ); | |
| 325 | |
| 326 static constexpr GrUserStencilSettings gInvUserToClipRDiffPass0( // Does not zer
o user bits. | |
| 327 GrUserStencilSettings::StaticInit< | |
| 328 0x0000, | |
| 329 GrUserStencilTest::kEqual, | |
| 330 0xffff, | |
| 331 GrUserStencilOp::kInvertClipBit, | |
| 332 GrUserStencilOp::kZeroClipBit, | |
| 333 0x0000>() | |
| 334 ); | |
| 335 | |
| 336 /////// | |
| 337 // Second pass to clear user bits (only needed sometimes) | |
| 338 static constexpr GrUserStencilSettings gZeroUserBits( | |
| 339 GrUserStencilSettings::StaticInit< | |
| 340 0x0000, | |
| 341 GrUserStencilTest::kNotEqual, | |
| 342 0xffff, | |
| 343 GrUserStencilOp::kZero, | |
| 344 GrUserStencilOp::kKeep, | |
| 345 0xffff>() | |
| 346 ); | |
| 347 | |
| 348 static constexpr const GrUserStencilSettings* gUserToClipTable[2][1 + SkRegion::
kLastOp][3] = { | |
| 349 { /* Normal fill. */ | |
| 350 {&gUserToClipDiff, nullptr, nullptr}, // kDifference_
Op. | |
| 351 {&gUserToClipIsect, nullptr, nullptr}, // kIntersect_O
p. | |
| 352 {&gUserToClipUnion, nullptr, nullptr}, // kUnion_Op. | |
| 353 {&gUserToClipXorPass0, &gZeroUserBits, nullptr}, // kXOR_Op. | |
| 354 {&gUserToClipRDiffPass0, &gZeroUserBits, nullptr}, // kReverseDiff
erence_Op. | |
| 355 {&gUserToClipReplace, nullptr, nullptr} // kReplace_Op. | |
| 356 | |
| 357 }, /* Inverse fill. */ { | |
| 358 {&gUserToClipIsect, nullptr, nullptr}, // ~diff (aka i
sect). | |
| 359 {&gUserToClipDiff, nullptr, nullptr}, // ~isect (aka
diff). | |
| 360 {&gInvUserToClipUnionPass0, &gZeroUserBits, nullptr}, // ~union. | |
| 361 {&gInvUserToClipXorPass0, &gZeroUserBits, nullptr}, // ~xor. | |
| 362 {&gInvUserToClipRDiffPass0, &gZeroUserBits, nullptr}, // ~reverse dif
f. | |
| 363 {&gInvUserToClipReplace, nullptr, nullptr} // ~replace. | |
| 364 } | |
| 365 }; | |
| 366 | |
| 367 GR_STATIC_ASSERT(0 == SkRegion::kDifference_Op); | |
| 368 GR_STATIC_ASSERT(1 == SkRegion::kIntersect_Op); | |
| 369 GR_STATIC_ASSERT(2 == SkRegion::kUnion_Op); | |
| 370 GR_STATIC_ASSERT(3 == SkRegion::kXOR_Op); | |
| 371 GR_STATIC_ASSERT(4 == SkRegion::kReverseDifference_Op); | |
| 372 GR_STATIC_ASSERT(5 == SkRegion::kReplace_Op); | |
| 373 | |
| 374 /////// | |
| 375 // Direct to Stencil | |
| 376 | |
| 377 // We can render a clip element directly without first writing to the client | |
| 378 // portion of the clip when the fill is not inverse and the set operation will | |
| 379 // only modify the in/out status of samples covered by the clip element. | |
| 380 | |
| 381 // this one only works if used right after stencil clip was cleared. | |
| 382 // Our clip mask creation code doesn't allow midstream replace ops. | |
| 383 static constexpr GrUserStencilSettings gReplaceClip( | |
| 384 GrUserStencilSettings::StaticInit< | |
| 385 0x0000, | |
| 386 GrUserStencilTest::kAlways, | |
| 387 0xffff, | |
| 388 GrUserStencilOp::kSetClipBit, | |
| 389 GrUserStencilOp::kSetClipBit, | |
| 390 0x0000>() | |
| 391 ); | |
| 392 | |
| 393 static constexpr GrUserStencilSettings gUnionClip( | |
| 394 GrUserStencilSettings::StaticInit< | |
| 395 0x0000, | |
| 396 GrUserStencilTest::kAlwaysIfInClip, | |
| 397 0xffff, | |
| 398 GrUserStencilOp::kKeep, | |
| 399 GrUserStencilOp::kSetClipBit, | |
| 400 0x0000>() | |
| 401 ); | |
| 402 | |
| 403 static constexpr GrUserStencilSettings gXorClip( | |
| 404 GrUserStencilSettings::StaticInit< | |
| 405 0x0000, | |
| 406 GrUserStencilTest::kAlways, | |
| 407 0xffff, | |
| 408 GrUserStencilOp::kInvertClipBit, | |
| 409 GrUserStencilOp::kInvertClipBit, | |
| 410 0x0000>() | |
| 411 ); | |
| 412 | |
| 413 static constexpr GrUserStencilSettings gDiffClip( | |
| 414 GrUserStencilSettings::StaticInit< | |
| 415 0x0000, | |
| 416 GrUserStencilTest::kAlwaysIfInClip, | |
| 417 0xffff, | |
| 418 GrUserStencilOp::kZeroClipBit, | |
| 419 GrUserStencilOp::kKeep, | |
| 420 0x0000>() | |
| 421 ); | |
| 422 | |
| 423 static constexpr const GrUserStencilSettings* gDirectDrawTable[1 + SkRegion::kLa
stOp][2] = { | |
| 424 {&gDiffClip, nullptr}, // kDifference_Op. | |
| 425 {nullptr, nullptr}, // kIntersect_Op. | |
| 426 {&gUnionClip, nullptr}, // kUnion_Op. | |
| 427 {&gXorClip, nullptr}, // kXOR_Op. | |
| 428 {nullptr, nullptr}, // kReverseDifference_Op. | |
| 429 {&gReplaceClip, nullptr} // kReplace_Op. | |
| 430 }; | |
| 431 | |
| 432 GR_STATIC_ASSERT(0 == SkRegion::kDifference_Op); | |
| 433 GR_STATIC_ASSERT(1 == SkRegion::kIntersect_Op); | |
| 434 GR_STATIC_ASSERT(2 == SkRegion::kUnion_Op); | |
| 435 GR_STATIC_ASSERT(3 == SkRegion::kXOR_Op); | |
| 436 GR_STATIC_ASSERT(4 == SkRegion::kReverseDifference_Op); | |
| 437 GR_STATIC_ASSERT(5 == SkRegion::kReplace_Op); | |
| 438 | |
| 439 GrUserStencilSettings const* const* GrStencilSettings::GetClipPasses(SkRegion::O
p op, | |
| 440 bool canBeD
irect, | |
| 441 bool invert
edFill, | |
| 442 bool* drawD
irectToClip) { | |
| 443 SkASSERT((unsigned)op <= SkRegion::kLastOp); | |
| 444 if (canBeDirect && !invertedFill) { // TODO: inverse fill + intersect op can
be direct. | |
| 445 GrUserStencilSettings const* const* directPass = gDirectDrawTable[op]; | |
| 446 if (directPass[0]) { | |
| 447 *drawDirectToClip = true; | |
| 448 return directPass; | |
| 449 } | |
| 450 } | |
| 451 *drawDirectToClip = false; | |
| 452 return gUserToClipTable[invertedFill][op]; | |
| 453 } | |
| 454 | |
| 455 void GrStencilSettings::genKey(GrProcessorKeyBuilder* b) const { | |
| 456 b->add32(fFlags); | |
| 457 if (this->isDisabled()) { | |
| 458 return; | |
| 459 } | |
| 460 if (!this->isTwoSided()) { | |
| 461 constexpr int kCount16 = sizeof(Face) / sizeof(uint16_t); | |
| 462 GR_STATIC_ASSERT(0 == sizeof(Face) % sizeof(uint16_t)); | |
| 463 uint16_t* key = reinterpret_cast<uint16_t*>(b->add32n((kCount16 + 1) / 2
)); | |
| 464 memcpy(key, &fFront, sizeof(Face)); | |
| 465 key[kCount16] = 0; | |
| 466 GR_STATIC_ASSERT(1 == kCount16 % 2); | |
| 467 } else { | |
| 468 constexpr int kCount32 = (2 * sizeof(Face)) / sizeof(uint32_t); | |
| 469 GR_STATIC_ASSERT(0 == (2 * sizeof(Face)) % sizeof(uint32_t)); | |
| 470 uint32_t* key = b->add32n(kCount32); | |
| 471 memcpy(key, &fFront, 2 * sizeof(Face)); | |
| 472 GR_STATIC_ASSERT(sizeof(Face) == | |
| 473 offsetof(GrStencilSettings, fBack) - offsetof(GrStencil
Settings, fFront)); | |
| 474 } | |
| 475 // We rely on GrStencilSettings::Face being tightly packed for the key to be
reliable. | |
| 476 GR_STATIC_ASSERT(0 == offsetof(Face, fRef)); | |
| 477 GR_STATIC_ASSERT(2 == sizeof(Face::fRef)); | |
| 478 GR_STATIC_ASSERT(2 == offsetof(Face, fTest)); | |
| 479 GR_STATIC_ASSERT(2 == sizeof(Face::fTest)); | |
| 480 GR_STATIC_ASSERT(4 == offsetof(Face, fTestMask)); | |
| 481 GR_STATIC_ASSERT(2 == sizeof(Face::fTestMask)); | |
| 482 GR_STATIC_ASSERT(6 == offsetof(Face, fPassOp)); | |
| 483 GR_STATIC_ASSERT(1 == sizeof(Face::fPassOp)); | |
| 484 GR_STATIC_ASSERT(7 == offsetof(Face, fFailOp)); | |
| 485 GR_STATIC_ASSERT(1 == sizeof(Face::fFailOp)); | |
| 486 GR_STATIC_ASSERT(8 == offsetof(Face, fWriteMask)); | |
| 487 GR_STATIC_ASSERT(2 == sizeof(Face::fWriteMask)); | |
| 488 GR_STATIC_ASSERT(10 == sizeof(Face)); | |
| 489 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1969693003:
Revert of Separate user and raw stencil settings (Closed)
Base URL: https://skia.googlesource.com/skia.git@master