// GPU texture readback utility for offline processing
// Synchronous blocking operation (waits for GPU completion)

#pragma once

// Protected with STRIP_ALL: only needed for dev tools, not final release
#if !defined(STRIP_ALL)

#include "platform/platform.h"
#include <vector>
#include <cstdint>

// Read texture pixels to CPU memory (synchronous, blocking)
// Format: BGRA8Unorm (4 bytes per pixel)
// Returns: width * height * 4 bytes
std::vector<uint8_t> read_texture_pixels(
    WGPUInstance instance,
    WGPUDevice device,
    WGPUTexture texture,
    int width,
    int height);

// Read RGBA16Float texture and convert to BGRA8Unorm for saving
// Converts [-1,1] float range to [0,255] uint8 range
// Returns: width * height * 4 bytes (BGRA8)
std::vector<uint8_t> texture_readback_fp16_to_u8(
    WGPUDevice device,
    WGPUQueue queue,
    WGPUTexture texture,
    int width,
    int height);

#endif // !defined(STRIP_ALL)