1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrDrawPathBatch.h"
#include "GrRenderTargetPriv.h"
static void pre_translate_transform_values(const float* xforms,
GrPathRendering::PathTransformType type, int count,
SkScalar x, SkScalar y, float* dst);
void GrDrawPathBatchBase::onPrepare(GrBatchFlushState*) {
const GrRenderTargetPriv& rtPriv = this->pipeline()->getRenderTarget()->renderTargetPriv();
fStencilPassSettings.reset(GrPathRendering::GetStencilPassSettings(fFillType),
this->pipeline()->hasStencilClip(), rtPriv.numStencilBits());
}
SkString GrDrawPathBatch::dumpInfo() const {
SkString string;
string.printf("PATH: 0x%p", fPath.get());
return string;
}
void GrDrawPathBatch::onDraw(GrBatchFlushState* state) {
GrProgramDesc desc;
SkAutoTUnref<GrPathProcessor> pathProc(GrPathProcessor::Create(this->color(),
this->overrides(),
this->viewMatrix()));
state->gpu()->pathRendering()->drawPath(*this->pipeline(), *pathProc,
this->stencilPassSettings(), fPath.get());
}
SkString GrDrawPathRangeBatch::dumpInfo() const {
SkString string;
string.printf("RANGE: 0x%p COUNTS: [", fPathRange.get());
for (DrawList::Iter iter(fDraws); iter.get(); iter.next()) {
string.appendf("%d, ", iter.get()->fInstanceData->count());
}
string.remove(string.size() - 2, 2);
string.append("]");
return string;
}
GrDrawPathRangeBatch::GrDrawPathRangeBatch(const SkMatrix& viewMatrix, SkScalar scale, SkScalar x,
SkScalar y, GrColor color,
GrPathRendering::FillType fill, GrPathRange* range,
const InstanceData* instanceData, const SkRect& bounds)
: INHERITED(ClassID(), viewMatrix, color, fill)
, fPathRange(range)
, fTotalPathCount(instanceData->count())
, fScale(scale) {
fDraws.addToHead()->set(instanceData, x, y);
fBounds = bounds;
}
bool GrDrawPathRangeBatch::onCombineIfPossible(GrBatch* t, const GrCaps& caps) {
GrDrawPathRangeBatch* that = t->cast<GrDrawPathRangeBatch>();
if (this->fPathRange.get() != that->fPathRange.get() ||
this->transformType() != that->transformType() ||
this->fScale != that->fScale ||
this->color() != that->color() ||
!this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
return false;
}
if (!GrPipeline::AreEqual(*this->pipeline(), *that->pipeline(), false)) {
return false;
}
switch (fDraws.head()->fInstanceData->transformType()) {
case GrPathRendering::kNone_PathTransformType:
if (this->fDraws.head()->fX != that->fDraws.head()->fX ||
this->fDraws.head()->fY != that->fDraws.head()->fY) {
return false;
}
break;
case GrPathRendering::kTranslateX_PathTransformType:
if (this->fDraws.head()->fY != that->fDraws.head()->fY) {
return false;
}
break;
case GrPathRendering::kTranslateY_PathTransformType:
if (this->fDraws.head()->fX != that->fDraws.head()->fX) {
return false;
}
break;
default: break;
}
// TODO: Check some other things here. (winding, opaque, pathProc color, vm, ...)
// Try to combine this call with the previous DrawPaths. We do this by stenciling all the
// paths together and then covering them in a single pass. This is not equivalent to two
// separate draw calls, so we can only do it if there is no blending (no overlap would also
// work). Note that it's also possible for overlapping paths to cancel each other's winding
// numbers, and we only partially account for this by not allowing even/odd paths to be
// combined. (Glyphs in the same font tend to wind the same direction so it works out OK.)
if (GrPathRendering::kWinding_FillType != this->fillType() ||
GrPathRendering::kWinding_FillType != that->fillType() ||
this->overrides().willColorBlendWithDst()) {
return false;
}
SkASSERT(!that->overrides().willColorBlendWithDst());
fTotalPathCount += that->fTotalPathCount;
while (Draw* head = that->fDraws.head()) {
Draw* draw = fDraws.addToTail();
draw->fInstanceData.reset(head->fInstanceData.release());
draw->fX = head->fX;
draw->fY = head->fY;
that->fDraws.popHead();
}
this->joinBounds(that->fBounds);
return true;
}
void GrDrawPathRangeBatch::onDraw(GrBatchFlushState* state) {
const Draw& head = *fDraws.head();
SkMatrix drawMatrix(this->viewMatrix());
drawMatrix.preScale(fScale, fScale);
drawMatrix.preTranslate(head.fX, head.fY);
SkMatrix localMatrix;
localMatrix.setScale(fScale, fScale);
localMatrix.preTranslate(head.fX, head.fY);
SkAutoTUnref<GrPathProcessor> pathProc(GrPathProcessor::Create(this->color(),
this->overrides(),
drawMatrix,
localMatrix));
if (fDraws.count() == 1) {
const InstanceData& instances = *head.fInstanceData;
state->gpu()->pathRendering()->drawPaths(*this->pipeline(),
*pathProc,
this->stencilPassSettings(),
fPathRange.get(),
instances.indices(),
GrPathRange::kU16_PathIndexType,
instances.transformValues(),
instances.transformType(),
instances.count());
} else {
int floatsPerTransform = GrPathRendering::PathTransformSize(this->transformType());
SkAutoSTMalloc<4096, float> transformStorage(floatsPerTransform * fTotalPathCount);
SkAutoSTMalloc<2048, uint16_t> indexStorage(fTotalPathCount);
int idx = 0;
for (DrawList::Iter iter(fDraws); iter.get(); iter.next()) {
const Draw& draw = *iter.get();
const InstanceData& instances = *draw.fInstanceData;
memcpy(&indexStorage[idx], instances.indices(), instances.count() * sizeof(uint16_t));
pre_translate_transform_values(instances.transformValues(), this->transformType(),
instances.count(),
draw.fX - head.fX, draw.fY - head.fY,
&transformStorage[floatsPerTransform * idx]);
idx += instances.count();
// TODO: Support mismatched transform types if we start using more types other than 2D.
SkASSERT(instances.transformType() == this->transformType());
}
SkASSERT(idx == fTotalPathCount);
state->gpu()->pathRendering()->drawPaths(*this->pipeline(),
*pathProc,
this->stencilPassSettings(),
fPathRange.get(),
indexStorage,
GrPathRange::kU16_PathIndexType,
transformStorage,
this->transformType(),
fTotalPathCount);
}
}
inline void pre_translate_transform_values(const float* xforms,
GrPathRendering::PathTransformType type, int count,
SkScalar x, SkScalar y, float* dst) {
if (0 == x && 0 == y) {
memcpy(dst, xforms, count * GrPathRendering::PathTransformSize(type) * sizeof(float));
return;
}
switch (type) {
case GrPathRendering::kNone_PathTransformType:
SkFAIL("Cannot pre-translate kNone_PathTransformType.");
break;
case GrPathRendering::kTranslateX_PathTransformType:
SkASSERT(0 == y);
for (int i = 0; i < count; i++) {
dst[i] = xforms[i] + x;
}
break;
case GrPathRendering::kTranslateY_PathTransformType:
SkASSERT(0 == x);
for (int i = 0; i < count; i++) {
dst[i] = xforms[i] + y;
}
break;
case GrPathRendering::kTranslate_PathTransformType:
for (int i = 0; i < 2 * count; i += 2) {
dst[i] = xforms[i] + x;
dst[i + 1] = xforms[i + 1] + y;
}
break;
case GrPathRendering::kAffine_PathTransformType:
for (int i = 0; i < 6 * count; i += 6) {
dst[i] = xforms[i];
dst[i + 1] = xforms[i + 1];
dst[i + 2] = xforms[i] * x + xforms[i + 1] * y + xforms[i + 2];
dst[i + 3] = xforms[i + 3];
dst[i + 4] = xforms[i + 4];
dst[i + 5] = xforms[i + 3] * x + xforms[i + 4] * y + xforms[i + 5];
}
break;
default:
SkFAIL("Unknown transform type.");
break;
}
}
|
