buffers.cpp

#include <iostream>
#include <algorithm>
#include "buffers.h"
using namespace std;
using namespace MaxLib;


namespace GLViewer {

// Create a new static buffer
// Example: GeometryBufferID buffer = buffers.CreateBuffer<StaticBuffer>([](StaticBuffer& buffer){ buffer.Addxxx() });
GeometryBufferID Buffers::CreateStaticBuffer(std::function<void(StaticBuffer&)> cb_AddData) {
    return m_GeometryBuffers.Add<StaticBuffer>(cb_AddData).m_ID;
}
// Create a new dynamic buffer
// Example: GeometryBufferID buffer = buffers.CreateBuffer<DynamicBuffer>();
GeometryBufferID Buffers::CreateDynamicBuffer() {
    return m_GeometryBuffers.Add<DynamicBuffer>().m_ID;
}

// Create a new Stream buffer
// Example: GeometryBufferID buffer = buffers.CreateBuffer<StreamBuffer>();
GeometryBufferID Buffers::CreateStreamBuffer() {
    return m_GeometryBuffers.Add<StreamBuffer>().m_ID;
}

// Create a new Text buffer
TextBufferID Buffers::CreateTextBuffer() {
    return m_TextBuffers.Add(m_Parent).m_ID;
}
// Create a new Image buffer
ImageBufferID Buffers::CreateImageBuffer() {
    return m_ImageBuffers.Add(m_Parent).m_ID;
}


// Deletes a buffer, do not try to access this buffer after deletion
void Buffers::DeleteGeometryBuffer(GeometryBufferID bufferID) {
    // Delete buffer if the ID matches. Go backwards through list so we always have correct index
    for(int i = m_GeometryBuffers.Size()-1; i >= 0; i--) {
        if(m_GeometryBuffers[(size_t)i].m_ID.id == bufferID.id) { m_GeometryBuffers.Remove((size_t)i); }
    }
}
// Deletes a buffer, do not try to access this buffer after deletion
void Buffers::DeleteTextBuffer(TextBufferID bufferID) {
    // Delete buffer if the ID matches. Go backwards through list so we always have correct index
    for(int i = m_TextBuffers.Size()-1; i >= 0; i--) {
        if(m_TextBuffers[(size_t)i].m_ID.id == bufferID.id) { m_TextBuffers.Remove((size_t)i); }
    }
}
// Deletes a buffer, do not try to access this buffer after deletion
void Buffers::DeleteImageBuffer(ImageBufferID bufferID) {
    // Delete buffer if the ID matches. Go backwards through list so we always have correct index
    for(int i = m_ImageBuffers.Size()-1; i >= 0; i--) {
        if(m_ImageBuffers[(size_t)i].m_ID.id == bufferID.id) { m_ImageBuffers.Remove((size_t)i); }
    }
}

void Buffers::DeleteAllBuffers() {
    // Delete each buffer. Go backwards through list so we always have correct index
    while(m_GeometryBuffers.Size()) { m_GeometryBuffers.Remove(0); }
    while(m_TextBuffers.Size())     { m_TextBuffers.Remove(0); }
    while(m_ImageBuffers.Size())    { m_ImageBuffers.Remove(0); }
}

// Renders each of the buffers per frame
void Buffers::RenderBuffers(const glm::mat4& proj, const glm::mat4& view) {
    // Render each of the GeometryBuffers
    for(auto& buffer : m_GeometryBuffers)   { buffer->Render(proj, view); }   
    // Render each of the TextBuffers
    for(auto& buffer : m_TextBuffers)       { buffer->Render(); }   
    // Render each of the ImageBuffers
    for(auto& buffer : m_ImageBuffers)      { buffer->Render(); }   
}

    
} // End namespace GLViewer