34 lines
1.5 KiB
Shell
34 lines
1.5 KiB
Shell
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#!/data/data/com.termux/files/usr/bin/bash
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# Times a fullscreen background shader's per-pixel cost. Same Xvfb + Mesa
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# softpipe rig as screenshot.sh (see the long note there about llvmpipe
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# crashing with SIGILL in this environment), because a fragment shader can
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# only be timed if something actually rasterizes it - --headless renders
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# nothing at all.
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#
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# Softpipe is a CPU rasterizer, so treat the numbers as RELATIVE only:
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# comparing two versions of the same shader is meaningful, comparing against
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# a phone's frame budget is not.
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#
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# Usage: bash tests/profile_shader.sh <shader_res_path> [timed_frames] [warmup] [WxH]
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# Example: bash tests/profile_shader.sh res://lunar_surface.gdshader 30 10 720x1280
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set -e
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PROJECT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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GODOT_BIN="/root/Godot_v4.7.1-stable_linux.arm64"
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SHADER_PATH="${1:?usage: profile_shader.sh <shader_res_path> [timed_frames] [warmup] [WxH]}"
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TIMED_FRAMES="${2:-30}"
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WARMUP_FRAMES="${3:-10}"
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RESOLUTION="${4:-720x1280}"
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proot-distro login ubuntu -- bash -c "
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pkill -x Xvfb >/dev/null 2>&1 || true
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rm -f /tmp/.X99-lock /tmp/.X11-unix/X99
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Xvfb :99 -screen 0 ${RESOLUTION}x24 &
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XVFB_PID=\$!
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trap 'kill \$XVFB_PID >/dev/null 2>&1 || true' EXIT
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sleep 2
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mkdir -p /tmp/xdgrt && chmod 700 /tmp/xdgrt
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cd '$PROJECT_DIR'
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DISPLAY=:99 XDG_RUNTIME_DIR=/tmp/xdgrt GALLIUM_DRIVER=softpipe '$GODOT_BIN' --audio-driver Dummy --rendering-driver opengl3 --rendering-method gl_compatibility --resolution '$RESOLUTION' -s res://tests/_profile_surface_shader.gd -- '$SHADER_PATH' '$TIMED_FRAMES' '$WARMUP_FRAMES'
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"
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