asrael/pxl8
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

use tiled atlas texture sampling, increase shader speed using inv sqrt

Browse source
This commit is contained in:
asrael 2026-02-04 07:37:20 -06:00
parent e92748c2d9
commit c4226b36fe
34 changed files with 1045 additions and 520 deletions
Download patch file Download diff file Expand all files Collapse all files

96
pxl8.sh
View file

@ -8,7 +8,7 @@ if command -v ccache >/dev/null 2>&1; then
CC="ccache $CC"
fi
CFLAGS="-std=c23 -Wall -Wextra"
CFLAGS="-std=c23 -Wall -Wextra -Wno-missing-braces"
LIBS="-lm"
MODE="debug"
BUILDDIR=".build"
@ -170,8 +170,8 @@ compile_source_file() {
compile_shaders() {
local build_mode="$1"
local shader_dir="src/gfx/shaders/cpu"
local so_dir=".build/shaders/cpu"
local obj_dir=".build/shaders/cpu/obj"
local so_dir=".build/$build_mode/shaders/cpu"
local obj_dir=".build/$build_mode/shaders/cpu/obj"
if [[ ! -d "$shader_dir" ]]; then
return 0
@ -240,15 +240,17 @@ print_usage() {
echo " clean Remove build artifacts"
echo " help Show this help message"
echo " install Install pxl8 to ~/.local/bin"
echo " profile Profile with perf and generate flamegraph (Linux)"
echo " run Build and run pxl8 (optional: cart.pxc or folder)"
echo " update Download/update all dependencies"
echo " vendor Fetch source for dependencies (ex. SDL3)"
echo
echo -e "${BOLD}OPTIONS:${NC}"
echo " --all Clean both build artifacts and dependencies"
echo " --cache Clear ccache (use with clean)"
echo " --deps Clean only dependencies"
echo " --release Build/run/clean in release mode (default: debug)"
echo " --all Clean both build artifacts and dependencies"
echo " --cache Clear ccache (use with clean)"
echo " --deps Clean only dependencies"
echo " --duration=N Profile duration in seconds (default: 30)"
echo " --release Build/run/clean in release mode (default: debug)"
}
setup_sdl3() {
@ -324,6 +326,20 @@ update_fennel() {
fi
}
update_flamegraph() {
print_info "Fetching FlameGraph"
if [[ -d "lib/FlameGraph/.git" ]]; then
cd lib/FlameGraph && git pull --quiet origin master
cd - > /dev/null
else
rm -rf lib/FlameGraph
git clone --quiet https://github.com/brendangregg/FlameGraph.git lib/FlameGraph
fi
print_info "Updated FlameGraph"
}
update_linenoise() {
print_info "Fetching linenoise"
@ -690,6 +706,72 @@ case "$COMMAND" in
bash tools/aseprite/pxl8-ase.sh "$@"
;;
profile)
if [[ "$(uname)" != "Linux" ]]; then
print_error "Profiling with perf is only supported on Linux"
exit 1
fi
if ! command -v perf >/dev/null 2>&1; then
print_error "perf not found. Install linux-tools or perf package."
exit 1
fi
if [[ ! -d "lib/FlameGraph" ]]; then
mkdir -p lib
update_flamegraph
fi
"$0" build || exit 1
PROFILE_DIR=".build/debug/profile"
mkdir -p "$PROFILE_DIR"
CART=""
PERF_DURATION=30
for arg in "$@"; do
if [[ "$arg" =~ ^--duration=([0-9]+)$ ]]; then
PERF_DURATION="${BASH_REMATCH[1]}"
elif [[ "$arg" != "--release" ]] && [[ -z "$CART" ]]; then
CART="$arg"
fi
done
[[ -z "$CART" ]] && CART="demo"
TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
PERF_DATA="$PROFILE_DIR/perf_${TIMESTAMP}.data"
PERF_SCRIPT="$PROFILE_DIR/perf_${TIMESTAMP}.perf"
FOLDED="$PROFILE_DIR/perf_${TIMESTAMP}.folded"
SVG="$PROFILE_DIR/flamegraph_${TIMESTAMP}.svg"
print_info "Starting server..."
./bin/debug/pxl8d &
SERVER_PID=$!
sleep 0.5
trap "kill $SERVER_PID 2>/dev/null; wait $SERVER_PID 2>/dev/null" EXIT
print_info "Profiling pxl8 for ${PERF_DURATION}s (Ctrl+C to stop early)..."
perf record -F 99 -g --call-graph dwarf -o "$PERF_DATA" -- \
timeout "${PERF_DURATION}s" ./bin/debug/pxl8 "$CART" 2>/dev/null || true
print_info "Processing profile data..."
perf script -i "$PERF_DATA" > "$PERF_SCRIPT"
print_info "Generating flamegraph..."
lib/FlameGraph/stackcollapse-perf.pl "$PERF_SCRIPT" > "$FOLDED"
lib/FlameGraph/flamegraph.pl --cp --colors orange --title "pxl8 profile" "$FOLDED" > "$SVG"
rm -f "$PERF_DATA" "$PERF_SCRIPT" "$FOLDED"
print_info "Flamegraph: $SVG"
if command -v xdg-open >/dev/null 2>&1; then
xdg-open "$SVG" 2>/dev/null &
fi
;;
help|--help|-h|"")
print_usage
;;