PNG decoding does not currently support transparency

[illusion0001]

No description provided.

[bucanero]

which library or code have you used to load a png?

I have used the stbi image library without issues. (png with alpha channel, etc.)

[victorrjimenezz]

I think the problem is that the PNG class does not currently use the alpha value. You can solve it by adding uint8_t alpha = (uint8_t)(encodedColor >> 24); to the Draw function in the PNG class, and only drawing the pixel if(alpha> someValue). But this does not take into account when the pixel isn‘t completely transparent.

[illusion0001]

which library or code have you used to load a png?

I have used the stbi image library without issues. (png with alpha channel, etc.)

@bucanero you can change background of included sample to anything but black and the logo will have black background on it. Texture is rgba. https://github.com/OpenOrbis/OpenOrbis-PS4-Toolchain/tree/master/samples/pngdec

[bucanero]

I think that the PNG.cpp in common is just a quick example and shouldn't be taken as a full featured graphics library.

I've been using the SDL2 library to render pngs with alpha without issues. You might want to check the SDL2 samples as an alternative.

[Cryptogenic]

While this is true and common/ is just quick examples, it would be nice to support transparency there, especially where we already do so for fonts.