Draft: Add PRIME render offload support (Linux)

Hybrid Graphics systems should probably run on the more powerful GPU unless instructed otherwise.

This introduces support for Prime Render Offload to the Linux viewer wrapper script to correct this behavior.

TODO:

• AMD APU + NVIDIA dGPU
• AMD APU + AMD dGPU
• AMD APU + Intel dGPU
• Intel iGPU + NVIDIA gGPU
• Intel iGPU + AMD dGPU
• Intel iGPU + Intel dGPU

indra/newview/linux_tools/wrapper.sh

@@ -117,20 +117,20 @@ if [[ -z "$AL_NO_OFFLOAD" ]]; then
 	if command -v lspci >/dev/null 2>&1; then
 		vga_adapters=$(lspci | grep -i 'vga\|3d\|2d')
 		adapters_count=$(wc -l <<< "$vga_adapters")
-		if [[ $adapters_count -gt 1 ]]
-		then
+		if [[ $adapters_count -gt 1 ]]; then
+			echo "Multiple graphics adapters detected, attempting auto-select..."
 			# TODO: Stuff DRI_PRIME=1 somewhere in there for machines with AMD discrete gpus + integrated graphics
-			if [[ "${vga_adapters}" =~ "NVIDIA Corporation" ]]; then
-				if [[ "${vga_adapters}" =~ "Advanced Micro Devices, Inc" ]] || [[ "${vga_adapters}" =~ "Intel" ]]; then
-					echo "Hybrid graphics detected"
-					if command -v prime-run > /dev/null 2>&1; then
-						echo "prime-run available, launching using the NVIDIA gpu"
-						LL_WRAPPER+=" prime-run "
-					else
-						echo "prime-run not available, attempting to use the fallback environment variable"
-						LL_WRAPPER+=" __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia"
-					fi
+			if [[ "${vga_adapters}" =~ "NVIDIA Corporation" ]] && [[ "${vga_adapters}" =~ "Advanced Micro Devices, Inc" ]]; then
+				if command -v prime-run > /dev/null 2>&1; then
+					echo "prime-run available, launching using the NVIDIA gpu"
+					LL_WRAPPER+=" prime-run "
+				else
+					echo "prime-run not available, attempting to use the fallback environment variable"
+					LL_WRAPPER+=" __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia"
 				fi
+			else
+			# if [[ "${vga_adapters}" =~ "Intel" ]]; then
+				echo 'Auto-select does not know what to do with your current configuration.\nPlease send the output of "$(lspci | grep -i '\''vga\|3d\|2d'\'')" to the Alchemy Viewer discord'\''s testing channel.'
 			fi
 		fi
 	fi