1 /*
2 * Copyright 2021 Google LLC
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 #include "include/private/chromium/Slug.h"
9
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkPoint.h"
12 #include "include/core/SkSerialProcs.h"
13 #include "src/core/SkReadBuffer.h"
14 #include "src/core/SkWriteBuffer.h"
15
16 class SkData;
17
18 namespace sktext::gpu {
19
ConvertBlob(SkCanvas * canvas,const SkTextBlob & blob,SkPoint origin,const SkPaint & paint)20 sk_sp<Slug> Slug::ConvertBlob(
21 SkCanvas* canvas, const SkTextBlob& blob, SkPoint origin, const SkPaint& paint) {
22 return canvas->convertBlobToSlug(blob, origin, paint);
23 }
24
serialize() const25 sk_sp<SkData> Slug::serialize() const {
26 SkBinaryWriteBuffer buffer({});
27 this->doFlatten(buffer);
28 return buffer.snapshotAsData();
29 }
30
serialize(void * buffer,size_t size) const31 size_t Slug::serialize(void* buffer, size_t size) const {
32 SkBinaryWriteBuffer writeBuffer{buffer, size, {}};
33 this->doFlatten(writeBuffer);
34
35 // If we overflow the given buffer, then SkWriteBuffer allocates a new larger buffer. Check
36 // to see if an additional buffer was allocated, if it wasn't then everything fit, else
37 // return 0 signaling the buffer overflowed.
38 // N.B. This is the idiom from SkTextBlob.
39 return writeBuffer.usingInitialStorage() ? writeBuffer.bytesWritten() : 0u;
40 }
41
Deserialize(const void * data,size_t size,const SkStrikeClient * client)42 sk_sp<Slug> Slug::Deserialize(const void* data, size_t size, const SkStrikeClient* client) {
43 SkReadBuffer buffer{data, size};
44 SkDeserialProcs procs;
45 Slug::AddDeserialProcs(&procs, client);
46 buffer.setDeserialProcs(procs);
47 return MakeFromBuffer(buffer);
48 }
49
draw(SkCanvas * canvas,const SkPaint & paint) const50 void Slug::draw(SkCanvas* canvas, const SkPaint& paint) const {
51 canvas->drawSlug(this, paint);
52 }
53
54 } // namespace sktext::gpu
55
56