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#!/bin/bash
# Validate CNN v2: Export checkpoint → Build → Test → Display results
set -e
# Default paths
BUILD_DIR="build"
WORKSPACE="main"
TEST_IMAGES_DIR="training/validation"
OUTPUT_DIR="validation_results"
PYTHON="python3"
# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'
print_usage() {
cat << EOF
Usage: $0 CHECKPOINT [OPTIONS]
End-to-end CNN v2 validation: export shaders, rebuild, test images, show results.
Arguments:
CHECKPOINT Path to .pth checkpoint file (required)
Options:
-b, --build-dir DIR Build directory (default: build)
-w, --workspace NAME Workspace name (default: main)
-i, --images DIR Test images directory (default: training/validation)
-o, --output DIR Output directory (default: validation_results)
--python CMD Python command (default: python3)
--skip-build Skip cnn_test rebuild
--skip-export Skip shader export (use existing .wgsl)
-h, --help Show this help
Example:
$0 checkpoints/checkpoint_epoch_5000.pth
$0 checkpoint.pth -i my_test_images/ -o results/
$0 checkpoint.pth --skip-build # Use existing cnn_test binary
EOF
}
log() { echo -e "${GREEN}[validate]${NC} $*"; }
warn() { echo -e "${YELLOW}[validate]${NC} $*"; }
error() { echo -e "${RED}[validate]${NC} $*" >&2; exit 1; }
# Parse arguments
CHECKPOINT=""
SKIP_BUILD=false
SKIP_EXPORT=false
while [[ $# -gt 0 ]]; do
case $1 in
-h|--help)
print_usage
exit 0
;;
-b|--build-dir)
BUILD_DIR="$2"
shift 2
;;
-w|--workspace)
WORKSPACE="$2"
shift 2
;;
-i|--images)
TEST_IMAGES_DIR="$2"
shift 2
;;
-o|--output)
OUTPUT_DIR="$2"
shift 2
;;
--python)
PYTHON="$2"
shift 2
;;
--skip-build)
SKIP_BUILD=true
shift
;;
--skip-export)
SKIP_EXPORT=true
shift
;;
-*)
error "Unknown option: $1"
;;
*)
if [[ -z "$CHECKPOINT" ]]; then
CHECKPOINT="$1"
else
error "Unexpected argument: $1"
fi
shift
;;
esac
done
# Validate inputs
[[ -z "$CHECKPOINT" ]] && error "Checkpoint file required. Use -h for help."
[[ ! -f "$CHECKPOINT" ]] && error "Checkpoint not found: $CHECKPOINT"
[[ ! -d "$TEST_IMAGES_DIR" ]] && error "Test images directory not found: $TEST_IMAGES_DIR"
SHADER_DIR="workspaces/$WORKSPACE/shaders"
CNN_TEST="$BUILD_DIR/cnn_test"
log "Configuration:"
log " Checkpoint: $CHECKPOINT"
log " Build dir: $BUILD_DIR"
log " Workspace: $WORKSPACE"
log " Shader dir: $SHADER_DIR"
log " Test images: $TEST_IMAGES_DIR"
log " Output dir: $OUTPUT_DIR"
echo
# Step 1: Export shaders
if [[ "$SKIP_EXPORT" = false ]]; then
log "Step 1/4: Exporting shaders from checkpoint..."
[[ ! -d "$SHADER_DIR" ]] && error "Shader directory not found: $SHADER_DIR"
if [[ ! -f "training/export_cnn_v2_shader.py" ]]; then
error "Export script not found: training/export_cnn_v2_shader.py"
fi
$PYTHON training/export_cnn_v2_shader.py "$CHECKPOINT" --output-dir "$SHADER_DIR" \
|| error "Shader export failed"
log "✓ Shaders exported to $SHADER_DIR"
else
warn "Skipping shader export (using existing .wgsl files)"
fi
# Step 2: Rebuild cnn_test
if [[ "$SKIP_BUILD" = false ]]; then
log "Step 2/4: Rebuilding cnn_test..."
cmake --build "$BUILD_DIR" -j4 --target cnn_test \
|| error "Build failed"
log "✓ Built $CNN_TEST"
else
warn "Skipping build (using existing binary)"
fi
[[ ! -x "$CNN_TEST" ]] && error "cnn_test not found or not executable: $CNN_TEST"
# Step 3: Process test images
log "Step 3/4: Processing test images..."
mkdir -p "$OUTPUT_DIR"
# Find PNG images
mapfile -t IMAGES < <(find "$TEST_IMAGES_DIR" -maxdepth 1 -name "*.png" | sort)
[[ ${#IMAGES[@]} -eq 0 ]] && error "No PNG images found in $TEST_IMAGES_DIR"
log "Found ${#IMAGES[@]} test image(s)"
for img in "${IMAGES[@]}"; do
basename=$(basename "$img" .png)
output="$OUTPUT_DIR/${basename}_output.png"
log " Processing $basename.png..."
"$CNN_TEST" "$img" "$output" --cnn-version v2 \
|| warn " Failed: $basename.png"
done
log "✓ Processed ${#IMAGES[@]} image(s)"
# Step 4: Display results
log "Step 4/4: Opening results..."
case "$(uname -s)" in
Darwin*)
open "$OUTPUT_DIR"
;;
Linux*)
if command -v xdg-open &> /dev/null; then
xdg-open "$OUTPUT_DIR"
else
log "Results saved to: $OUTPUT_DIR"
fi
;;
MINGW*|MSYS*|CYGWIN*)
explorer "$OUTPUT_DIR"
;;
*)
log "Results saved to: $OUTPUT_DIR"
;;
esac
log "✓ Validation complete!"
log ""
log "Results:"
log " Input: $TEST_IMAGES_DIR/*.png"
log " Output: $OUTPUT_DIR/*_output.png"
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