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// Copyright 1996-2023 Cyberbotics Ltd.
//
// 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
//
// https://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 "UniformBuffer.hpp"
#include "GlState.hpp"
#ifdef __EMSCRIPTEN__
#include <GL/gl.h>
#include <GLES3/gl3.h>
#else
#include <glad/glad.h>
#endif
namespace wren {
UniformBuffer::UniformBuffer(const unsigned int binding, const int size) : mGlName(0), mBinding(binding), mSize(size) {
setRequireAction(GlUser::GL_ACTION_PREPARE);
}
UniformBuffer::~UniformBuffer() {
release();
}
void UniformBuffer::writeValue(const void *data) const {
bind();
glBufferData(GL_UNIFORM_BUFFER, mSize, data, GL_DYNAMIC_DRAW);
}
void UniformBuffer::bind() const {
glstate::bindUniformBuffer(mGlName, mBinding);
}
void UniformBuffer::release() const {
glstate::releaseUniformBuffer(mGlName, mBinding);
}
void UniformBuffer::prepareGl() {
assert(!mGlName);
assert(mSize);
glGenBuffers(1, &mGlName);
}
void UniformBuffer::cleanupGl() {
release();
glDeleteBuffers(1, &mGlName);
}
} // namespace wren