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Chips-fr / uae4arm-rpi

Port of uae4arm on Raspberry Pi and Libretro
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CRT shaders? #66

Closed sphaero closed 4 years ago

sphaero commented 4 years ago

I noticed shaders are used. Any pointers how to get CRT shaders used?

see: https://github.com/RetroPie/RetroPie-Setup/wiki/Shaders-and-Smoothing

There's a whole bunch of them here as well: https://github.com/guestrr/FS-UAE-Shaders

sphaero commented 4 years ago

I found the SHADER_SUPPORT flag in the makefile. But uncommenting had no effect. Are the shaders also for raspberry pi's?

Chips-fr commented 4 years ago

You need to uncomment SHADER_SUPPORT flag and compile the gles target. All of this was working on raspberry pi at some time. It use an hardcoded shader, so it needs some work if you want to integrate other shader...

sphaero commented 4 years ago

It fails to compile with:

Error: selected processor does not support `ubfx r1,r3,#19,#5' in ARM mode

I'm running on a RPI3 (ARMv7 Processor rev 4 (v7l))

sphaero commented 4 years ago

Ah, it's the makefile not detecting an rpi correctly. Just uncommented ifneq ($(findstring raspberrypi,$(shell uname -a)),).

Now faced with a 

glGetError 0x501
GL error: glTexSubImage2D 501
Chips-fr commented 4 years ago

Found a correction. Note that the shader code is not very polished.