DrawFont alternative for RGBA surfaces

[Nacho84]

[edge]

Hi Nacho,

Unfortunately, there is no support for text drawing on RGBA surfaces. The only way to handle this is to create your own font renderer and locking surfaces.

[Nacho84]

Hi edge,

Thanks for your prompt reply. Just for curiosity's sake: why isn't this feature included in edgelib? I mean, if it's already implemented for RGB surfaces, isn't it the same algorithm for RGBA ones?

Cheers,

--Nacho

[edge]

Hi Nacho,

The main difference in blitting RGBA to RGBA would be the included alpha channel. To handle this, two options would be necessary:
- Blitting straight onto the RGBA surface, including the alpha channel (a simple memory copy)
- Read the alpha channel and 'blend them' somehow onto the destination surface