blob: 5ede60485901716d42ff90201963c806a5e9c197 [file] [log] [blame]
* 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/GrMeshDrawTarget.h"
#include "src/gpu/BufferWriter.h"
#include "src/gpu/ganesh/GrResourceProvider.h"
uint32_t GrMeshDrawTarget::contextUniqueID() const {
return this->resourceProvider()->contextUniqueID();
template<typename W>
static W make_writer(void* p, int count, size_t elementSize) {
// Don't worry about overflow in calculating byte size if 'p' is not null, presumably the actual
// allocation validated it, so it should be safe after the fact.
return p ? W{p, count * elementSize} : W{};
skgpu::VertexWriter GrMeshDrawTarget::makeVertexWriter(
size_t vertexSize, int vertexCount, sk_sp<const GrBuffer>* buffer, int* startVertex) {
void* p = this->makeVertexSpace(vertexSize, vertexCount, buffer, startVertex);
return make_writer<skgpu::VertexWriter>(p, vertexCount, vertexSize);
skgpu::IndexWriter GrMeshDrawTarget::makeIndexWriter(
int indexCount, sk_sp<const GrBuffer>* buffer, int* startIndex) {
void* p = this->makeIndexSpace(indexCount, buffer, startIndex);
return make_writer<skgpu::IndexWriter>(p, indexCount, sizeof(uint16_t));
skgpu::VertexWriter GrMeshDrawTarget::makeVertexWriterAtLeast(
size_t vertexSize, int minVertexCount, int fallbackVertexCount,
sk_sp<const GrBuffer>* buffer, int* startVertex, int* actualVertexCount) {
void* p = this->makeVertexSpaceAtLeast(vertexSize, minVertexCount, fallbackVertexCount,
buffer, startVertex, actualVertexCount);
return make_writer<skgpu::VertexWriter>(p, *actualVertexCount, vertexSize);
skgpu::IndexWriter GrMeshDrawTarget::makeIndexWriterAtLeast(
int minIndexCount, int fallbackIndexCount, sk_sp<const GrBuffer>* buffer,
int* startIndex, int* actualIndexCount) {
void* p = this->makeIndexSpaceAtLeast(minIndexCount, fallbackIndexCount, buffer,
startIndex, actualIndexCount);
return make_writer<skgpu::IndexWriter>(p, *actualIndexCount, sizeof(uint16_t));