__inline void __ClipPrimitive(CFrameBuffer* fbDesc, int* dw, int* dh)
{
    if(*dw > fbDesc->width)
        *dw = fbDesc->width - 1;

    if(*dh > fbDesc->height)
        *dh = fbDesc->height - 1;
}

void CGraphics::PutPixel(int x, int y, CColor color)
{
    if(x < 0 || y < 0)
        return;

    char* col = &backBuffer[(y * fbDesc.width + x) * 3];
    col[0] = color.R;
    col[1] = color.G;
    col[2] = color.B;
}

void CGraphics::PutPixelAlpha(int x, int y, CColor color, float alpha)
{
    if(x < 0 || y < 0)
        return;

    char* col = &backBuffer[(y * fbDesc.width + x) * 3];

    col[0] = (byte)(color.R * alpha + col[0] * (1.0f - alpha));
    col[1] = (byte)(color.G * alpha + col[1] * (1.0f - alpha));
    col[2] = (byte)(color.B * alpha + col[2] * (1.0f - alpha));
}

void CGraphics::DrawImage(CImage* img, int x, int y)
{
    if(img)
    {
        if(!img->IsTransparent)
        {
            for(int i = 0; i < img->Height; i++)
            {
                for(int j = 0; j < img->Width; j++)
                {
                    if(j >= fbDesc.width)
                        break;

                    CColor col;
                    unsigned char* pixels = &img->Pixels[((img->Height - i - 1) * img->Width + j) * 3];

                    col.R = pixels[2];
                    col.G = pixels[1];
                    col.B = pixels[0];

                    PutPixel(x + j, y + i, col);
                }

                if(i >= fbDesc.height)
                    break;
            }
        }
        else
        {
            for(int i = 0; i < img->Height; i++)
            {
                for(int j = 0; j < img->Width; j++)
                {
                    if(j >= fbDesc.width)
                        break;

                    CColor col;
                    unsigned char* pixels = &img->Pixels[((img->Height - i - 1) * img->Width + j) * 4];

                    col.R = pixels[2];
                    col.G = pixels[1];
                    col.B = pixels[0];
                    float alpha = (float)pixels[3] / 255;

                    PutPixelAlpha(x + j, y + i, col, alpha);
                }

                if(i >= fbDesc.height)
                    break;
            }
        }
    }
}