feat(graphics): Phase 3 - 2D graphics primitives + xtask QEMU isolation #98
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Implements Phase 3 of the graphics stack with 2D drawing primitives: Core types: - Color struct with RGB support and BGR/RGB pixel format conversion - Point and Rect structs for geometry - Canvas trait for abstracted drawing surface Drawing functions: - draw_hline/draw_vline: Optimized horizontal/vertical lines - draw_line: General line drawing using Bresenham's algorithm - draw_rect: Rectangle outline - fill_rect: Filled rectangle with row optimization - draw_circle/fill_circle: Circle using midpoint algorithm Integration: - ShellFrameBuffer implements Canvas trait - draw_test_pattern() demo function for testing All drawing functions handle bounds checking and clipping automatically. Coordinates use i32 to allow negative values (clipped at canvas boundary). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace all instances of `pkill -9 qemu-system-x86_64` with worktree-specific PID file tracking. This allows multiple worktrees to run boot-stages tests simultaneously without killing each other's QEMU processes. Changes: - Add get_qemu_pid_file() to generate unique PID file path per worktree - Add signal_worktree_qemu() to send signals to specific QEMU process - Add kill_worktree_qemu() and term_worktree_qemu() helpers - Add save_qemu_pid() to track QEMU PID on startup - Replace all 6 pkill calls with worktree-specific PID-based killing PID files are stored at /tmp/breenix-qemu-<worktree-hash>.pid using a hash of the current working directory for uniqueness. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
pkillwith per-worktree PID trackingGraphics Primitives
Added
kernel/src/graphics/primitives.rswith:Color,Point,RectCanvastrait for drawing surface abstractiondraw_line,draw_hline,draw_vline,draw_rect,fill_rect,draw_circle,fill_circleShellFrameBufferxtask QEMU Isolation
Replaced all 6 instances of
pkill -9 qemu-system-x86_64with worktree-specific PID file tracking:/tmp/breenix-qemu-<worktree-hash>.pidboot-stagessimultaneouslyTest plan
🤖 Generated with Claude Code