Files
assimp/samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/Mesh.h
2020-03-08 10:50:18 -04:00

108 lines
2.6 KiB
C++

#ifndef MESH_H
#define MESH_H
#include <string>
#include <fstream>
#include <sstream>
#include <iostream>
#include <vector>
#include <stdexcept>
#include <d3d11_1.h>
#include <DirectXMath.h>
using namespace DirectX;
#include "SafeRelease.hpp"
struct VERTEX {
FLOAT X, Y, Z;
XMFLOAT2 texcoord;
};
struct Texture {
std::string type;
std::string path;
ID3D11ShaderResourceView *texture;
void Release() {
SafeRelease(texture);
}
};
class Mesh {
public:
std::vector<VERTEX> vertices;
std::vector<UINT> indices;
std::vector<Texture> textures;
ID3D11Device *dev;
Mesh(ID3D11Device *dev, const std::vector<VERTEX>& vertices, const std::vector<UINT>& indices, const std::vector<Texture>& textures) :
vertices(vertices),
indices(indices),
textures(textures),
dev(dev),
VertexBuffer(nullptr),
IndexBuffer(nullptr) {
this->setupMesh(this->dev);
}
void Draw(ID3D11DeviceContext *devcon) {
UINT stride = sizeof(VERTEX);
UINT offset = 0;
devcon->IASetVertexBuffers(0, 1, &VertexBuffer, &stride, &offset);
devcon->IASetIndexBuffer(IndexBuffer, DXGI_FORMAT_R32_UINT, 0);
devcon->PSSetShaderResources(0, 1, &textures[0].texture);
devcon->DrawIndexed(static_cast<UINT>(indices.size()), 0, 0);
}
void Close() {
SafeRelease(VertexBuffer);
SafeRelease(IndexBuffer);
}
private:
// Render data
ID3D11Buffer *VertexBuffer, *IndexBuffer;
// Functions
// Initializes all the buffer objects/arrays
void setupMesh(ID3D11Device *dev) {
HRESULT hr;
D3D11_BUFFER_DESC vbd;
vbd.Usage = D3D11_USAGE_IMMUTABLE;
vbd.ByteWidth = static_cast<UINT>(sizeof(VERTEX) * vertices.size());
vbd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vbd.CPUAccessFlags = 0;
vbd.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA initData;
initData.pSysMem = &vertices[0];
hr = dev->CreateBuffer(&vbd, &initData, &VertexBuffer);
if (FAILED(hr)) {
Close();
throw std::runtime_error("Failed to create vertex buffer.");
}
D3D11_BUFFER_DESC ibd;
ibd.Usage = D3D11_USAGE_IMMUTABLE;
ibd.ByteWidth = static_cast<UINT>(sizeof(UINT) * indices.size());
ibd.BindFlags = D3D11_BIND_INDEX_BUFFER;
ibd.CPUAccessFlags = 0;
ibd.MiscFlags = 0;
initData.pSysMem = &indices[0];
hr = dev->CreateBuffer(&ibd, &initData, &IndexBuffer);
if (FAILED(hr)) {
Close();
throw std::runtime_error("Failed to create index buffer.");
}
}
};
#endif