1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/mesh.cc	Sun Jun 23 04:23:13 2013 +0300
     1.3 @@ -0,0 +1,110 @@
     1.4 +#include <d3dut.h>
     1.5 +#include "mesh.h"
     1.6 +
     1.7 +
     1.8 +/*static ID3D11InputLayout *vertex_layout;
     1.9 +
    1.10 +static ID3D11InputLayout *create_vertex_layout()
    1.11 +{
    1.12 +	static const D3D11_INPUT_ELEMENT_DESC elem_desc[] = {
    1.13 +		{"position", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, offsetof(Vertex, pos), D3D11_INPUT_PER_VERTEX_DATA, 0},
    1.14 +		{"normal", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, offsetof(Vertex, normal), D3D11_INPUT_PER_VERTEX_DATA, 0},
    1.15 +		{"texcoord", 0, DXGI_FORMAT_R32G32_FLOAT, 0, offsetof(Vertex, texcoord), D3D11_INPUT_PER_VERTEX_DATA, 0}
    1.16 +	};
    1.17 +	static const int num_elem = sizeof elem_desc / sizeof *elem_desc;
    1.18 +
    1.19 +	if(d3dut_dev->CreateInputLayout(elem_desc, num_elem, 
    1.20 +}*/
    1.21 +
    1.22 +
    1.23 +Mesh::Mesh()
    1.24 +{
    1.25 +	vbuf = 0;
    1.26 +	cur_norm = Vector3(0, 1, 0);
    1.27 +}
    1.28 +
    1.29 +Mesh::~Mesh()
    1.30 +{
    1.31 +	if(vbuf) {
    1.32 +		vbuf->Release();
    1.33 +	}
    1.34 +}
    1.35 +
    1.36 +void Mesh::clear()
    1.37 +{
    1.38 +	invalidate_vbuffer();
    1.39 +	verts.clear();
    1.40 +}
    1.41 +
    1.42 +void Mesh::normal(float x, float y, float z)
    1.43 +{
    1.44 +	cur_norm.x = x;
    1.45 +	cur_norm.y = y;
    1.46 +	cur_norm.z = z;
    1.47 +}
    1.48 +
    1.49 +void Mesh::texcoord(float u, float v)
    1.50 +{
    1.51 +	cur_texcoord.x = u;
    1.52 +	cur_texcoord.y = v;
    1.53 +}
    1.54 +
    1.55 +void Mesh::vertex(float x, float y, float z)
    1.56 +{
    1.57 +	Vertex v;
    1.58 +	v.pos = Vector3(x, y, z);
    1.59 +	v.normal = cur_norm;
    1.60 +	v.texcoord = cur_texcoord;
    1.61 +	verts.push_back(v);
    1.62 +
    1.63 +	invalidate_vbuffer();
    1.64 +}
    1.65 +
    1.66 +
    1.67 +void Mesh::draw() const
    1.68 +{
    1.69 +	((Mesh*)this)->update_vbuffer();
    1.70 +
    1.71 +	unsigned int stride = sizeof(Vertex);
    1.72 +	unsigned int offset = 0;
    1.73 +	d3dut_ctx->IASetVertexBuffers(0, 1, &vbuf, &stride, &offset);
    1.74 +	d3dut_ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
    1.75 +
    1.76 +	d3dut_ctx->Draw(verts.size(), 0);
    1.77 +}
    1.78 +
    1.79 +
    1.80 +bool Mesh::update_vbuffer()
    1.81 +{
    1.82 +	if(vbuf) {
    1.83 +		return true;
    1.84 +	}
    1.85 +
    1.86 +	if(verts.empty()) {
    1.87 +		return false;
    1.88 +	}
    1.89 +
    1.90 +	D3D11_BUFFER_DESC bufdesc;
    1.91 +	memset(&bufdesc, 0, sizeof bufdesc);
    1.92 +	bufdesc.Usage = D3D11_USAGE_DEFAULT;
    1.93 +	bufdesc.ByteWidth = verts.size() * sizeof(Vertex);
    1.94 +	bufdesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
    1.95 +
    1.96 +	D3D11_SUBRESOURCE_DATA subres;
    1.97 +	memset(&subres, 0, sizeof subres);
    1.98 +	subres.pSysMem = &verts[0];
    1.99 +
   1.100 +	if(d3dut_dev->CreateBuffer(&bufdesc, &subres, &vbuf) != 0) {
   1.101 +		fprintf(stderr, "failed to create vertex buffer\n");
   1.102 +		return false;
   1.103 +	}
   1.104 +	return true;
   1.105 +}
   1.106 +
   1.107 +void Mesh::invalidate_vbuffer()
   1.108 +{
   1.109 +	if(vbuf) {
   1.110 +		vbuf->Release();
   1.111 +		vbuf = 0;
   1.112 +	}
   1.113 +}
   1.114 \ No newline at end of file