void SpriteFont::Flush(void)
{
if(m_TextQueue.empty() )
return;
auto pD3DDevice = MyServiceLocator::GetInstance()->GetService<IGraphicsService>()->GetGraphicsDevice()->GetDevice();
s_pMaterial->SetVariable(_T("Texture"), m_pTexture.get() );
s_pMaterial->SetVariable(_T("TextureDimensions"), m_TextureDimensions);
//Fill vertex buffer
TextVertex *pBuffer;
unsigned int bufferPos = 0;
s_pVertexBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&pBuffer);
for(auto& txtData : m_TextQueue)
{
tt::Vector2 totalAdvance(0);
for(auto& character : txtData.Text){
if(character == _BM'\n'){
totalAdvance.y += m_FontSize;
totalAdvance.x = 0;
continue;
}
auto it = m_Characters.find(character);
if(it == m_Characters.end() ){
s_pVertexBuffer->Unmap();
throw exception();
}
if(character == _BM' '){
totalAdvance.x += it->second.AdvanceX;
continue;
}
pBuffer[bufferPos++] = TextVertex( txtData.Position + totalAdvance + it->second.OffsetTexToScreen //Position
,it->second.TexCoord //TexCoord
,it->second.Dimensions //CharSize
,txtData.Color //Color
,it->second.Channel); //Channel
totalAdvance.x += it->second.AdvanceX;
}
}
s_pVertexBuffer->Unmap();
//DRAW
D3D10_TECHNIQUE_DESC techDesc;
s_pMaterial->GetActiveTechnique()->GetDesc( &techDesc );
for(unsigned int p=0; p < techDesc.Passes; ++p){
s_pMaterial->GetActiveTechnique()->GetPassByIndex(p)->Apply(0);
pD3DDevice->Draw(bufferPos, 0);
}
m_TextQueue.clear();
}
float Renderer::render_text(Font *font, const std::string &text, float _x, float _y, vec4 color)
{
if (font == 0)
font = defaultFont;
if (font == 0)
return 0;
if (font != currentFont)
{
flushText();
currentFont = font;
}
_x = (int)_x;
_y = (int)_y;
float sx = 2.0 / glutGet(GLUT_WINDOW_WIDTH);
float sy = 2.0 / glutGet(GLUT_WINDOW_HEIGHT);
float x = -1 + _x * sx;
float y = 1 - (_y + font->fontSize + 1) * sy;
std::string str = convStrForFont(text);
int n = 0;
float ret = 0;
for (unsigned int i = 0; i < str.length() && n < 512; i++) {
char c = str[i];
if (c == '\n')
{
x = -1 + _x * sx;
_y += font->fontSize + 1;
y = 1 - (_y + font->fontSize + 1) * sy;
continue;
}
if (c < 32 && c > 128) continue;
if (font->c[c].exists == false) continue;
float x2 = x + font->c[c].bl * sx;
float y2 = -y - font->c[c].bt * sy;
float w = font->c[c].bw * sx;
float h = font->c[c].bh * sy;
x += font->c[c].ax * sx;
y += font->c[c].ay * sy;
ret += font->c[c].ax;
if (!w || !h)
continue;
if (-y2 - h > 1 || -y2 < -1) continue;
pushTextVertex(TextVertex(x2, -y2, font->c[c].tx, 0, color));
pushTextVertex(TextVertex(x2 + w, -y2, font->c[c].tx + font->c[c].bw / font->w, 0, color));
pushTextVertex(TextVertex(x2, -y2 - h, font->c[c].tx, font->c[c].bh / font->h, color));
pushTextVertex(TextVertex(x2 + w, -y2, font->c[c].tx + font->c[c].bw / font->w, 0, color));
pushTextVertex(TextVertex(x2, -y2 - h, font->c[c].tx, font->c[c].bh / font->h, color));
pushTextVertex(TextVertex(x2 + w, -y2 - h, font->c[c].tx + font->c[c].bw / font->w, font->c[c].bh / font->h, color));
}
return ret;
}
