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
|
/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkAutoMalloc.h"
#include "SkCanvasPriv.h"
#include "SkReadBuffer.h"
#include "SkWriter32.h"
SkAutoCanvasMatrixPaint::SkAutoCanvasMatrixPaint(SkCanvas* canvas, const SkMatrix* matrix,
const SkPaint* paint, const SkRect& bounds)
: fCanvas(canvas)
, fSaveCount(canvas->getSaveCount())
{
if (paint) {
SkRect newBounds = bounds;
if (matrix) {
matrix->mapRect(&newBounds);
}
canvas->saveLayer(&newBounds, paint);
} else if (matrix) {
canvas->save();
}
if (matrix) {
canvas->concat(*matrix);
}
}
SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
fCanvas->restoreToCount(fSaveCount);
}
///////////////////////////////////////////////////////////////////////////////////////////////////
bool SkCanvasPriv::ReadLattice(SkReadBuffer& buffer, SkCanvas::Lattice* lattice) {
lattice->fXCount = buffer.readInt();
lattice->fXDivs = buffer.skipT<int32_t>(lattice->fXCount);
lattice->fYCount = buffer.readInt();
lattice->fYDivs = buffer.skipT<int32_t>(lattice->fYCount);
int flagCount = buffer.readInt();
lattice->fRectTypes = nullptr;
lattice->fColors = nullptr;
if (flagCount) {
lattice->fRectTypes = buffer.skipT<SkCanvas::Lattice::RectType>(flagCount);
lattice->fColors = buffer.skipT<SkColor>(flagCount);
}
lattice->fBounds = buffer.skipT<SkIRect>();
return buffer.isValid();
}
size_t SkCanvasPriv::WriteLattice(void* buffer, const SkCanvas::Lattice& lattice) {
int flagCount = lattice.fRectTypes ? (lattice.fXCount + 1) * (lattice.fYCount + 1) : 0;
const size_t size = (1 + lattice.fXCount + 1 + lattice.fYCount + 1) * sizeof(int32_t) +
SkAlign4(flagCount * sizeof(SkCanvas::Lattice::RectType)) +
SkAlign4(flagCount * sizeof(SkColor)) +
sizeof(SkIRect);
if (buffer) {
SkWriter32 writer(buffer, size);
writer.write32(lattice.fXCount);
writer.write(lattice.fXDivs, lattice.fXCount * sizeof(uint32_t));
writer.write32(lattice.fYCount);
writer.write(lattice.fYDivs, lattice.fYCount * sizeof(uint32_t));
writer.write32(flagCount);
writer.writePad(lattice.fRectTypes, flagCount * sizeof(uint8_t));
writer.write(lattice.fColors, flagCount * sizeof(SkColor));
SkASSERT(lattice.fBounds);
writer.write(lattice.fBounds, sizeof(SkIRect));
SkASSERT(writer.bytesWritten() == size);
}
return size;
};
void SkCanvasPriv::WriteLattice(SkWriteBuffer& buffer, const SkCanvas::Lattice& lattice) {
const size_t size = WriteLattice(nullptr, lattice);
SkAutoSMalloc<1024> storage(size);
WriteLattice(storage.get(), lattice);
buffer.writePad32(storage.get(), size);
}
|
