webp-screenshot-rust 1.0.0

//! Windows.Graphics.Capture API implementation (Windows 10 1903+)

use crate::{
    error::{CaptureError, CaptureResult},
    types::{CaptureRegion, RawImage},
};

/// Windows Graphics Capture API implementation
/// This provides hardware-accelerated capture on Windows 10 1903+
pub struct WindowsCaptureApi {
    // This would contain Direct3D11 device and other resources
}

impl WindowsCaptureApi {
    /// Try to initialize Windows Graphics Capture API
    pub fn new() -> CaptureResult<Self> {
        // Check Windows version
        if !Self::is_supported() {
            return Err(CaptureError::HardwareAccelerationUnavailable(
                "Windows Graphics Capture API requires Windows 10 1903 or later".to_string(),
            ));
        }

        // In a full implementation, we would:
        // 1. Create a Direct3D11 device
        // 2. Initialize Windows.Graphics.Capture
        // 3. Set up frame pool and session

        // For now, return unavailable
        Err(CaptureError::HardwareAccelerationUnavailable(
            "Windows Graphics Capture API not yet implemented".to_string(),
        ))
    }

    /// Check if the API is supported on this Windows version
    pub fn is_supported() -> bool {
        // Check for Windows 10 1903 or later
        // This would check actual Windows version
        false // Stub for now
    }

    /// Capture a display using Graphics Capture API
    pub fn capture_display(&self, _display_index: usize) -> CaptureResult<RawImage> {
        // In a full implementation:
        // 1. Create capture item for the display
        // 2. Start capture session
        // 3. Get frame from frame pool
        // 4. Convert D3D11 texture to raw pixels

        Err(CaptureError::CaptureFailed(
            "Windows Graphics Capture API not yet implemented".to_string(),
        ))
    }

    /// Capture a region using Graphics Capture API
    pub fn capture_region(&self, _region: CaptureRegion) -> CaptureResult<RawImage> {
        // Similar to capture_display but with region clipping
        Err(CaptureError::CaptureFailed(
            "Windows Graphics Capture API not yet implemented".to_string(),
        ))
    }
}