OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "GrOvalRenderer.h" | 8 #include "GrOvalRenderer.h" |
9 | 9 |
10 #include "GrEffect.h" | 10 #include "GrEffect.h" |
(...skipping 214 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
225 builder->getEffectAttributeName(drawEffect.getVertexAttribIndice
s()[1]); | 225 builder->getEffectAttributeName(drawEffect.getVertexAttribIndice
s()[1]); |
226 builder->vsCodeAppendf("\t%s = %s;\n", vsRadiiName, attr1Name->c_str
()); | 226 builder->vsCodeAppendf("\t%s = %s;\n", vsRadiiName, attr1Name->c_str
()); |
227 | 227 |
228 // for outer curve | 228 // for outer curve |
229 builder->fsCodeAppendf("\tvec2 scaledOffset = %s*%s.xy;\n", fsOffset
Name, fsRadiiName); | 229 builder->fsCodeAppendf("\tvec2 scaledOffset = %s*%s.xy;\n", fsOffset
Name, fsRadiiName); |
230 builder->fsCodeAppend("\tfloat test = dot(scaledOffset, scaledOffset
) - 1.0;\n"); | 230 builder->fsCodeAppend("\tfloat test = dot(scaledOffset, scaledOffset
) - 1.0;\n"); |
231 builder->fsCodeAppendf("\tvec2 grad = 2.0*scaledOffset*%s.xy;\n", fs
RadiiName); | 231 builder->fsCodeAppendf("\tvec2 grad = 2.0*scaledOffset*%s.xy;\n", fs
RadiiName); |
232 builder->fsCodeAppend("\tfloat grad_dot = dot(grad, grad);\n"); | 232 builder->fsCodeAppend("\tfloat grad_dot = dot(grad, grad);\n"); |
233 // we need to clamp the length^2 of the gradiant vector to a non-zer
o value, because | 233 // we need to clamp the length^2 of the gradiant vector to a non-zer
o value, because |
234 // on the Nexus 4 the undefined result of inversesqrt(0) drops out a
n entire tile | 234 // on the Nexus 4 the undefined result of inversesqrt(0) drops out a
n entire tile |
235 // TODO: restrict this to Adreno-only | 235 if (builder->ctxInfo().caps()->dropsTileOnZeroDivide()) { |
236 builder->fsCodeAppend("\tgrad_dot = max(grad_dot, 1.0e-4);\n"); | 236 builder->fsCodeAppend("\tgrad_dot = max(grad_dot, 1.0e-4);\n"); |
| 237 } |
237 builder->fsCodeAppend("\tfloat invlen = inversesqrt(grad_dot);\n"); | 238 builder->fsCodeAppend("\tfloat invlen = inversesqrt(grad_dot);\n"); |
238 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(0.5-test*invlen, 0.
0, 1.0);\n"); | 239 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(0.5-test*invlen, 0.
0, 1.0);\n"); |
239 | 240 |
240 // for inner curve | 241 // for inner curve |
241 if (ellipseEffect.isStroked()) { | 242 if (ellipseEffect.isStroked()) { |
242 builder->fsCodeAppendf("\tscaledOffset = %s*%s.zw;\n", fsOffsetN
ame, fsRadiiName); | 243 builder->fsCodeAppendf("\tscaledOffset = %s*%s.zw;\n", fsOffsetN
ame, fsRadiiName); |
243 builder->fsCodeAppend("\ttest = dot(scaledOffset, scaledOffset)
- 1.0;\n"); | 244 builder->fsCodeAppend("\ttest = dot(scaledOffset, scaledOffset)
- 1.0;\n"); |
244 builder->fsCodeAppendf("\tgrad = 2.0*scaledOffset*%s.zw;\n", fsR
adiiName); | 245 builder->fsCodeAppendf("\tgrad = 2.0*scaledOffset*%s.zw;\n", fsR
adiiName); |
245 builder->fsCodeAppend("\tinvlen = inversesqrt(dot(grad, grad));\
n"); | 246 builder->fsCodeAppend("\tinvlen = inversesqrt(dot(grad, grad));\
n"); |
246 builder->fsCodeAppend("\tedgeAlpha *= clamp(0.5+test*invlen, 0.0
, 1.0);\n"); | 247 builder->fsCodeAppend("\tedgeAlpha *= clamp(0.5+test*invlen, 0.0
, 1.0);\n"); |
(...skipping 126 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
373 builder->fsCodeAppend("\tfloat test = dot(scaledOffset, scaledOffset
) - 1.0;\n"); | 374 builder->fsCodeAppend("\tfloat test = dot(scaledOffset, scaledOffset
) - 1.0;\n"); |
374 builder->fsCodeAppendf("\tvec2 duvdx = dFdx(%s);\n", fsOffsetName0); | 375 builder->fsCodeAppendf("\tvec2 duvdx = dFdx(%s);\n", fsOffsetName0); |
375 builder->fsCodeAppendf("\tvec2 duvdy = dFdy(%s);\n", fsOffsetName0); | 376 builder->fsCodeAppendf("\tvec2 duvdy = dFdy(%s);\n", fsOffsetName0); |
376 builder->fsCodeAppendf("\tvec2 grad = vec2(2.0*%s.x*duvdx.x + 2.0*%s
.y*duvdx.y,\n" | 377 builder->fsCodeAppendf("\tvec2 grad = vec2(2.0*%s.x*duvdx.x + 2.0*%s
.y*duvdx.y,\n" |
377 "\t 2.0*%s.x*duvdy.x + 2.0*%s
.y*duvdy.y);\n", | 378 "\t 2.0*%s.x*duvdy.x + 2.0*%s
.y*duvdy.y);\n", |
378 fsOffsetName0, fsOffsetName0, fsOffsetName0,
fsOffsetName0); | 379 fsOffsetName0, fsOffsetName0, fsOffsetName0,
fsOffsetName0); |
379 | 380 |
380 builder->fsCodeAppend("\tfloat grad_dot = dot(grad, grad);\n"); | 381 builder->fsCodeAppend("\tfloat grad_dot = dot(grad, grad);\n"); |
381 // we need to clamp the length^2 of the gradiant vector to a non-zer
o value, because | 382 // we need to clamp the length^2 of the gradiant vector to a non-zer
o value, because |
382 // on the Nexus 4 the undefined result of inversesqrt(0) drops out a
n entire tile | 383 // on the Nexus 4 the undefined result of inversesqrt(0) drops out a
n entire tile |
383 // TODO: restrict this to Adreno-only | 384 if (builder->ctxInfo().caps()->dropsTileOnZeroDivide()) { |
384 builder->fsCodeAppend("\tgrad_dot = max(grad_dot, 1.0e-4);\n"); | 385 builder->fsCodeAppend("\tgrad_dot = max(grad_dot, 1.0e-4);\n"); |
| 386 } |
385 builder->fsCodeAppend("\tfloat invlen = inversesqrt(grad_dot);\n"); | 387 builder->fsCodeAppend("\tfloat invlen = inversesqrt(grad_dot);\n"); |
386 if (kHairline == ellipseEffect.getMode()) { | 388 if (kHairline == ellipseEffect.getMode()) { |
387 // can probably do this with one step | 389 // can probably do this with one step |
388 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(1.0-test*invlen
, 0.0, 1.0);\n"); | 390 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(1.0-test*invlen
, 0.0, 1.0);\n"); |
389 builder->fsCodeAppend("\tedgeAlpha *= clamp(1.0+test*invlen, 0.0
, 1.0);\n"); | 391 builder->fsCodeAppend("\tedgeAlpha *= clamp(1.0+test*invlen, 0.0
, 1.0);\n"); |
390 } else { | 392 } else { |
391 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(0.5-test*invlen
, 0.0, 1.0);\n"); | 393 builder->fsCodeAppend("\tfloat edgeAlpha = clamp(0.5-test*invlen
, 0.0, 1.0);\n"); |
392 } | 394 } |
393 | 395 |
394 // for inner curve | 396 // for inner curve |
(...skipping 743 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1138 } | 1140 } |
1139 | 1141 |
1140 // drop out the middle quad if we're stroked | 1142 // drop out the middle quad if we're stroked |
1141 int indexCnt = isStroked ? GR_ARRAY_COUNT(gRRectIndices)-6 : GR_ARRAY_CO
UNT(gRRectIndices); | 1143 int indexCnt = isStroked ? GR_ARRAY_COUNT(gRRectIndices)-6 : GR_ARRAY_CO
UNT(gRRectIndices); |
1142 target->setIndexSourceToBuffer(indexBuffer); | 1144 target->setIndexSourceToBuffer(indexBuffer); |
1143 target->drawIndexed(kTriangles_GrPrimitiveType, 0, 0, 16, indexCnt, &bou
nds); | 1145 target->drawIndexed(kTriangles_GrPrimitiveType, 0, 0, 16, indexCnt, &bou
nds); |
1144 } | 1146 } |
1145 | 1147 |
1146 return true; | 1148 return true; |
1147 } | 1149 } |
OLD | NEW |