bool CD3DBuffer::CreateBuffer(const void* pData)
{
CD3D11_BUFFER_DESC bDesc(m_length, m_type, m_usage, m_cpuFlags);
D3D11_SUBRESOURCE_DATA initData;
initData.pSysMem = pData;
return (S_OK == g_Windowing.Get3D11Device()->CreateBuffer(&bDesc, (pData ? &initData : nullptr), &m_buffer));
}
Map::Map()
{
m_iCurrentTexture = 0;
m_timed = false;
m_tex1 = Renderer::CreateTexture(TEX_WIDTH, TEX_HEIGHT);
m_tex2 = Renderer::CreateTexture(TEX_WIDTH, TEX_HEIGHT);
m_texture = m_tex1;
m_vertices = NULL;
//---------------------------------------------------------------------------
// Create verticies buffer
CD3D11_BUFFER_DESC bDesc(GRID_WIDTH * GRID_HEIGHT * sizeof(PosColNormalUVVertex),
D3D11_BIND_VERTEX_BUFFER,
D3D11_USAGE_DYNAMIC,
D3D11_CPU_ACCESS_WRITE );
Renderer::GetDevice()->CreateBuffer(&bDesc, NULL, &m_vBuffer);
//---------------------------------------------------------------------------
// Build verticies
D3D11_MAPPED_SUBRESOURCE res;
Renderer::GetContext()->Map(m_vBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &res);
PosColNormalUVVertex* v = (PosColNormalUVVertex*)res.pData;
for (int y = 0; y < GRID_HEIGHT; y++)
{
for (int x = 0; x < GRID_WIDTH; x ++)
{
// 0-(32 / 2) / (32 / 2) = -1
// 15-(32 / 2) / (32 / 2) = -1
v->Coord.x = ((float)x - ((GRID_WIDTH -1 ) / 2.0f)) / ((GRID_WIDTH -1 ) / 2.0f);
v->Coord.y = -(((float)y - ((GRID_HEIGHT -1 ) / 2.0f)) / ((GRID_HEIGHT -1 ) / 2.0f));
v->FDiffuse.x = 1.0f;
v->FDiffuse.y = 1.0f;
v->FDiffuse.z = 1.0f;
v->FDiffuse.w = 1.0f;
v->Coord.z = 0.0f;
// v->u = ((((float)x - ((GRID_WIDTH -1 ) / 2.0f)) / ((GRID_WIDTH -1 ) / 2.0f) * 256 + 256) * (1.0f / 512)) + (0.5f / 512);
// v->v = ((((float)y - ((GRID_HEIGHT -1 ) / 2.0f)) / ((GRID_HEIGHT -1 ) / 2.0f) * 256 + 256) * (1.0f / 512)) + (0.5f / 512);
v->u = ((float)x / (GRID_WIDTH -1));// + (0.5f / TEX_SIZE);
v->v = ((float)y / (GRID_HEIGHT -1));// + (0.5f / TEX_SIZE) ;//+ (5 / 512.0f);
v++;
}
}
Renderer::GetContext()->Unmap(m_vBuffer, 0);
//---------------------------------------------------------------------------
// Build indices
unsigned short indices[NUM_INDICES * 2], *pIndices = indices;
int numIndices = 0;
unsigned short iIndex = 0;
for (int a = 0; a < GRID_HEIGHT - 1; ++a)
{
for (int i = 0; i < GRID_WIDTH; ++i, pIndices += 2, ++iIndex )
{
pIndices[ 0 ] = iIndex + GRID_WIDTH;
pIndices[ 1 ] = iIndex;
numIndices+=2;
}
// connect two strips by inserting two degenerate triangles
if (GRID_WIDTH - 2 > a)
{
pIndices[0] = iIndex - 1;
pIndices[1] = iIndex + GRID_WIDTH;
pIndices += 2;
numIndices += 2;
}
}
m_numIndices = numIndices - 2;
//---------------------------------------------------------------------------
// Create indices buffer
bDesc.ByteWidth = sizeof(indices);
bDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
bDesc.Usage = D3D11_USAGE_IMMUTABLE;
bDesc.CPUAccessFlags = 0;
D3D11_SUBRESOURCE_DATA bData = { 0 };
bData.pSysMem = indices;
Renderer::GetDevice()->CreateBuffer(&bDesc, &bData, &m_iBuffer);
}
