| /* |
| * Copyright 2021 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/ganesh/GrEagerVertexAllocator.h" |
| |
| #include "src/gpu/ganesh/GrMeshDrawTarget.h" |
| |
| //------------------------------------------------------------------------------------------------- |
| void* GrEagerDynamicVertexAllocator::lock(size_t stride, int eagerCount) { |
| SkASSERT(!fLockCount); |
| SkASSERT(eagerCount); |
| if (void* data = fTarget->makeVertexSpace(stride, eagerCount, fVertexBuffer, fBaseVertex)) { |
| fLockStride = stride; |
| fLockCount = eagerCount; |
| return data; |
| } |
| fVertexBuffer->reset(); |
| *fBaseVertex = 0; |
| return nullptr; |
| } |
| |
| void GrEagerDynamicVertexAllocator::unlock(int actualCount) { |
| SkASSERT(fLockCount); |
| SkASSERT(actualCount <= fLockCount); |
| fTarget->putBackVertices(fLockCount - actualCount, fLockStride); |
| if (!actualCount) { |
| fVertexBuffer->reset(); |
| *fBaseVertex = 0; |
| } |
| fLockCount = 0; |
| } |
| |
| //------------------------------------------------------------------------------------------------- |
| void* GrCpuVertexAllocator::lock(size_t stride, int eagerCount) { |
| SkASSERT(!fLockStride && !fVertices && !fVertexData); |
| SkASSERT(stride && eagerCount); |
| |
| fVertices = sk_malloc_throw(eagerCount * stride); |
| fLockStride = stride; |
| |
| return fVertices; |
| } |
| |
| void GrCpuVertexAllocator::unlock(int actualCount) { |
| SkASSERT(fLockStride && fVertices && !fVertexData); |
| |
| fVertices = sk_realloc_throw(fVertices, actualCount * fLockStride); |
| |
| fVertexData = GrThreadSafeCache::MakeVertexData(fVertices, actualCount, fLockStride); |
| |
| fVertices = nullptr; |
| fLockStride = 0; |
| } |
| |
| sk_sp<GrThreadSafeCache::VertexData> GrCpuVertexAllocator::detachVertexData() { |
| SkASSERT(!fLockStride && !fVertices && fVertexData); |
| |
| return std::move(fVertexData); |
| } |