blob: 19ad12771f4b2c8fb2ac2602f57f7f2404653edd [file] [log] [blame]
/*
* Copyright 2017 The Cobalt Authors. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "starboard/configuration.h"
#if SB_API_VERSION >= 12 || SB_HAS(GLES2)
#include "cobalt/renderer/rasterizer/skia/hardware_mesh.h"
#include <memory>
#include <vector>
namespace cobalt {
namespace renderer {
namespace rasterizer {
namespace skia {
uint32 HardwareMesh::GetEstimatedSizeInBytes() const {
if (vertices_) {
return static_cast<uint32>(vertices_->size() * sizeof(vertices_->front()) +
sizeof(draw_mode_));
} else if (vbo_) {
return static_cast<uint32>(vbo_->GetVertexCount() * 5 * sizeof(float) +
sizeof(draw_mode_));
} else {
return 0;
}
}
const VertexBufferObject* HardwareMesh::GetVBO() const {
if (!vbo_) {
if (base::MessageLoop::current()) {
rasterizer_task_runner_ = base::MessageLoop::current()->task_runner();
}
vbo_.reset(new VertexBufferObject(std::move(vertices_), draw_mode_));
}
return vbo_.get();
}
namespace {
void DestroyVBO(backend::GraphicsContextEGL* cobalt_context,
std::unique_ptr<VertexBufferObject> vbo) {
backend::GraphicsContextEGL::ScopedMakeCurrent scoped_make_current(
cobalt_context);
vbo.reset();
}
} // namespace
HardwareMesh::~HardwareMesh() {
if (!vbo_) {
return;
}
if (!rasterizer_task_runner_ ||
rasterizer_task_runner_->BelongsToCurrentThread()) {
DestroyVBO(cobalt_context_, std::move(vbo_));
return;
}
// Make sure that VBO cleanup always happens on the thread that created
// the VBO in the first place. We are passing cobalt_context_ by pointer
// here, but we can assume it will still be alive when DestroyVBO is
// executed because this Mesh object must be destroyed before the
// rasterizer, and the rasterizer must be destroyed before the GL
// context.
rasterizer_task_runner_->PostTask(
FROM_HERE, base::Bind(&DestroyVBO, cobalt_context_, base::Passed(&vbo_)));
}
} // namespace skia
} // namespace rasterizer
} // namespace renderer
} // namespace cobalt
#endif // SB_API_VERSION >= 12 || SB_HAS(GLES2)