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#236 gave each video-wall panel a mounting rotation, which for the first time puts a real rotation on an ancestor of the ExoPlayer TextureView. The screenshot compositor could not express that: it pasted the video frame with an axis-aligned Rect built from getLocationInWindow(), so on a rotated panel the frame landed outside the capture bitmap entirely. What reached the dashboard was the plain black that view.draw() leaves wherever a TextureView is — a panel that looks dead while it is playing perfectly, which is the worst thing a diagnostic can say. The frame is now placed through the same transform chain the hierarchy was drawn with, accumulated up the parent chain the way the framework does when it draws a child, so any ancestor rotation/translation is honoured. The bitmap is also scaled from the surface's own dimensions rather than assumed to match the view. Measured on the emulator, a wall panel playing video, remote screenshot vs the adb framebuffer at the same moment (standard deviation — 0 means a flat frame): before after rotation 0 sd 0.439 / truth 0.430 sd 0.443 / truth 0.435 (unchanged) rotation 90 sd 0 / truth 0.461 sd 0.448 / truth 0.448 rotation 90 sd 0 / truth 0.467 sd 0.460 / truth 0.457 rotation 90 sd 0 / truth 0.408 sd 0.463 / truth 0.466 Every rotated capture was #010101 with zero variance before; each now tracks the real framebuffer. Rotation 0 is unchanged, and so is the ordinary fullscreen (non-wall) path, re-measured across images and video. No unit test: this is android.graphics.Matrix semantics against a live view hierarchy, which the JVM test source set cannot exercise — the evidence is the before/after measurement above. Android 151/151, server 1298/1298. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL |
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