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//-----------------------------------------------------------------------------
// Name: vboringcontainer.h
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
//
// Copyright 2022 Wolfire Games LLC
//
// 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.
//
//-----------------------------------------------------------------------------
#pragma once
#include <Internal/referencecounter.h>
#include <Internal/integer.h>
#include <Graphics/vboenums.h>
#include <opengl.h>
#ifndef V_MIBIBYTE
#define V_MIBIBYTE 1024*1024
#endif
#ifndef V_KIBIBYTE
#define V_KIBIBYTE 1024
#endif
class VBORingContainer {
int gl_VBO;
char flags;
bool element;
bool force_reload;
GLuint current_offset;
GLuint next_offset;
//Used space (requested by last loaded buffer) plus alignment padding
GLuint allocated_size;
//Amount of space requested to use for last filled buffer
GLuint used_size;
//Total size of entire ring buffer
GLuint storage_size;
GLuint storage_size_hint;
GLenum target;
GLenum hint;
int storage_multiplier;
public:
void Dispose();
void SetHint( GLuint storage_size, char flags, bool ignore_multiplier = false );
void Fill(GLuint size, void* data);
void Bind() const;
bool valid() const;
unsigned size(); //returns size in bytes.
uintptr_t offset() const;
VBORingContainer( GLuint storage_size, char flags, bool ignore_multiplier = false );
~VBORingContainer();
private:
VBORingContainer( const VBORingContainer& other );
VBORingContainer& operator=(const VBORingContainer& other);
};
typedef ReferenceCounter<VBORingContainer> RC_VBORingContainer;
class UniformRingBuffer {
public:
int size;
int gl_id;
int offset;
int next_offset;
UniformRingBuffer():
gl_id(-1),
size(0),
offset(0),
next_offset(0)
{}
void Create(int desired_size);
void Fill(int data_size, void* data);
};
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