xref: /aosp_15_r20/external/skia/src/gpu/graphite/Buffer.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17) 
1 /*
2  * Copyright 2021 Google Inc.
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 "src/gpu/graphite/Buffer.h"
9 #include "src/gpu/graphite/Caps.h"
10 #include "src/gpu/graphite/SharedContext.h"
11 
12 namespace skgpu::graphite {
13 
map()14 void* Buffer::map() {
15     SkASSERT(this->isUnmappable() || !this->sharedContext()->caps()->bufferMapsAreAsync());
16     SkASSERT(this->isProtected() == Protected::kNo);
17     if (!this->isMapped()) {
18         this->onMap();
19     }
20     return fMapPtr;
21 }
22 
asyncMap(GpuFinishedProc proc,GpuFinishedContext ctx)23 void Buffer::asyncMap(GpuFinishedProc proc, GpuFinishedContext ctx) {
24     SkASSERT(this->sharedContext()->caps()->bufferMapsAreAsync());
25     SkASSERT(this->isProtected() == Protected::kNo);
26     this->onAsyncMap(proc, ctx);
27 }
28 
unmap()29 void Buffer::unmap() {
30     SkASSERT(this->isUnmappable());
31     this->onUnmap();
32     fMapPtr = nullptr;
33 }
34 
isUnmappable() const35 bool Buffer::isUnmappable() const { return isMapped(); }
36 
onAsyncMap(skgpu::graphite::GpuFinishedProc,skgpu::graphite::GpuFinishedContext)37 void Buffer::onAsyncMap(skgpu::graphite::GpuFinishedProc, skgpu::graphite::GpuFinishedContext) {
38     SkASSERT(!this->sharedContext()->caps()->bufferMapsAreAsync());
39     SK_ABORT("Async buffer mapping not supported");
40 }
41 
42 } // namespace skgpu::graphite
43 
44