bool CTextureNode::LoadTextureFromSurface(const SDL_Surface &aSurface)
{
GLenum TextureFormat;
switch(aSurface.format->BytesPerPixel)
{
case 3:
if (aSurface.format->Rmask == 0x000000ff)
TextureFormat = GL_RGB;
else
TextureFormat = GL_BGR;
break;
case 4:
if (aSurface.format->Rmask == 0x000000ff)
TextureFormat = GL_RGBA;
else
TextureFormat = GL_BGRA;
break;
default:
return false;
}
m_TextureRawSize.x = aSurface.w;
m_TextureRawSize.y = aSurface.h;
m_GLTexture.InitWithData(aSurface.pixels,aSurface.format->BytesPerPixel,m_TextureRawSize.x,m_TextureRawSize.y,TextureFormat);
m_TextureSize = m_TextureRawSize;
SetVBOData();
return true;
}
void CTextureNode::SetVBODataAligned(const TTextureAlign aAlign, const u32 aFrame, const u32 aW, const u32 aH, const f32 aU_i, const f32 aU_f, const f32 aV_i, const f32 aV_f )
{
const f32 w = (aW==0?m_TextureSize.x:aW);
const f32 h = (aH==0?m_TextureSize.y:aH);
f32 aX_i, aX_f, aY_i, aY_f;
switch ( (aAlign & 0x0F) ) // Horizontal
{
case TEXTUREALIGN_LEFT:
{
aX_i = 0;
aX_f = w;
break;
}
case TEXTUREALIGN_RIGHT:
{
aX_i = w * -1;
aX_f = 0;
break;
}
case TEXTUREALIGN_CENTER:
default:
{
aX_i = (w/2) * -1;
aX_f = (w/2) * +1;
break;
}
}
switch ( (aAlign & 0xF0) ) // Vertical
{
case TEXTUREVALIGN_BOTTOM:
{
aY_i = 0;
aY_f = h;
break;
}
case TEXTUREVALIGN_TOP:
{
aY_i = h * -1;
aY_f = 0;
break;
}
case TEXTUREVALIGN_MIDDLE:
default:
{
aY_i = (h/2) * -1;
aY_f = (h/2) * +1;
break;
}
}
SetVBOData( aFrame, aX_i, aX_f, aY_i, aY_f, aU_i, aU_f, aV_i, aV_f );
}
