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
|
/*
* 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 "GrNinePatch.h"
#include "GrBatchFlushState.h"
#include "GrDefaultGeoProcFactory.h"
#include "GrResourceProvider.h"
#include "GrVertexBatch.h"
#include "SkBitmap.h"
#include "SkLatticeIter.h"
#include "SkRect.h"
static sk_sp<GrGeometryProcessor> create_gp(bool readsCoverage) {
using namespace GrDefaultGeoProcFactory;
Color color(Color::kAttribute_Type);
Coverage coverage(readsCoverage ? Coverage::kSolid_Type : Coverage::kNone_Type);
LocalCoords localCoords(LocalCoords::kHasExplicit_Type);
return GrDefaultGeoProcFactory::Make(color, coverage, localCoords, SkMatrix::I());
}
class GrNonAANinePatchBatch : public GrVertexBatch {
public:
DEFINE_BATCH_CLASS_ID
static const int kVertsPerRect = 4;
static const int kIndicesPerRect = 6;
GrNonAANinePatchBatch(GrColor color, const SkMatrix& viewMatrix, int imageWidth,
int imageHeight, std::unique_ptr<SkLatticeIter> iter, const SkRect &dst)
: INHERITED(ClassID()) {
Patch& patch = fPatches.push_back();
patch.fViewMatrix = viewMatrix;
patch.fColor = color;
patch.fIter = std::move(iter);
patch.fDst = dst;
fImageWidth = imageWidth;
fImageHeight = imageHeight;
// setup bounds
this->setTransformedBounds(patch.fDst, viewMatrix, HasAABloat::kNo, IsZeroArea::kNo);
}
const char* name() const override { return "NonAANinePatchBatch"; }
SkString dumpInfo() const override {
SkString str;
for (int i = 0; i < fPatches.count(); ++i) {
str.appendf("%d: Color: 0x%08x Dst [L: %.2f, T: %.2f, R: %.2f, B: %.2f]\n",
i,
fPatches[i].fColor,
fPatches[i].fDst.fLeft, fPatches[i].fDst.fTop,
fPatches[i].fDst.fRight, fPatches[i].fDst.fBottom);
}
str.append(INHERITED::dumpInfo());
return str;
}
void computePipelineOptimizations(GrInitInvariantOutput* color,
GrInitInvariantOutput* coverage,
GrBatchToXPOverrides* overrides) const override {
color->setUnknownFourComponents();
coverage->setKnownSingleComponent(0xff);
}
private:
void onPrepareDraws(Target* target) const override {
sk_sp<GrGeometryProcessor> gp(create_gp(fOverrides.readsCoverage()));
if (!gp) {
SkDebugf("Couldn't create GrGeometryProcessor\n");
return;
}
size_t vertexStride = gp->getVertexStride();
int patchCnt = fPatches.count();
int numRects = 0;
for (int i = 0; i < patchCnt; i++) {
numRects += fPatches[i].fIter->numRectsToDraw();
}
SkAutoTUnref<const GrBuffer> indexBuffer(
target->resourceProvider()->refQuadIndexBuffer());
InstancedHelper helper;
void* vertices = helper.init(target, kTriangles_GrPrimitiveType, vertexStride,
indexBuffer, kVertsPerRect,
kIndicesPerRect, numRects);
if (!vertices || !indexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
intptr_t verts = reinterpret_cast<intptr_t>(vertices);
for (int i = 0; i < patchCnt; i++) {
const Patch& patch = fPatches[i];
// Apply the view matrix here if it is scale-translate. Otherwise, we need to
// wait until we've created the dst rects.
bool isScaleTranslate = patch.fViewMatrix.isScaleTranslate();
if (isScaleTranslate) {
patch.fIter->mapDstScaleTranslate(patch.fViewMatrix);
}
SkRect srcR, dstR;
intptr_t patchVerts = verts;
while (patch.fIter->next(&srcR, &dstR)) {
SkPoint* positions = reinterpret_cast<SkPoint*>(verts);
positions->setRectFan(dstR.fLeft, dstR.fTop,
dstR.fRight, dstR.fBottom, vertexStride);
// Setup local coords
static const int kLocalOffset = sizeof(SkPoint) + sizeof(GrColor);
SkPoint* coords = reinterpret_cast<SkPoint*>(verts + kLocalOffset);
coords->setRectFan(srcR.fLeft, srcR.fTop, srcR.fRight, srcR.fBottom, vertexStride);
static const int kColorOffset = sizeof(SkPoint);
GrColor* vertColor = reinterpret_cast<GrColor*>(verts + kColorOffset);
for (int j = 0; j < 4; ++j) {
*vertColor = patch.fColor;
vertColor = (GrColor*) ((intptr_t) vertColor + vertexStride);
}
verts += kVertsPerRect * vertexStride;
}
// If we didn't handle it above, apply the matrix here.
if (!isScaleTranslate) {
SkPoint* positions = reinterpret_cast<SkPoint*>(patchVerts);
patch.fViewMatrix.mapPointsWithStride(positions, vertexStride,
kVertsPerRect * patch.fIter->numRectsToDraw());
}
}
helper.recordDraw(target, gp.get());
}
void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
overrides.getOverrideColorIfSet(&fPatches[0].fColor);
fOverrides = overrides;
}
bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override {
GrNonAANinePatchBatch* that = t->cast<GrNonAANinePatchBatch>();
if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(),
that->bounds(), caps)) {
return false;
}
SkASSERT(this->fImageWidth == that->fImageWidth &&
this->fImageHeight == that->fImageHeight);
// In the event of two batches, one who can tweak, one who cannot, we just fall back to
// not tweaking
if (fOverrides.canTweakAlphaForCoverage() && !that->fOverrides.canTweakAlphaForCoverage()) {
fOverrides = that->fOverrides;
}
fPatches.move_back_n(that->fPatches.count(), that->fPatches.begin());
this->joinBounds(*that);
return true;
}
struct Patch {
SkMatrix fViewMatrix;
std::unique_ptr<SkLatticeIter> fIter;
SkRect fDst;
GrColor fColor;
};
GrXPOverridesForBatch fOverrides;
int fImageWidth;
int fImageHeight;
SkSTArray<1, Patch, true> fPatches;
typedef GrVertexBatch INHERITED;
};
namespace GrNinePatch {
GrDrawBatch* CreateNonAA(GrColor color, const SkMatrix& viewMatrix, int imageWidth, int imageHeight,
std::unique_ptr<SkLatticeIter> iter, const SkRect& dst) {
return new GrNonAANinePatchBatch(color, viewMatrix, imageWidth, imageHeight, std::move(iter),
dst);
}
};
|
