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Gr2fixes - #250
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Gr2fixes#250
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Blender 1.0's Shift+A toolbox (IRIX 5.3) never showed: IRIS GL drawmode(OVERDRAW / PUPDRAW) switches with MakeCurrent 11 (8 for the 4-bit overlay), colour planes masked off and 0x003 naming the aux bits to write, then draws in colour indices. The HLE kept 12-bit RGB with a zero write mask, so the whole menu went nowhere. GL drawing now targets the aux planes in those modes (index into the aux bits as the 2D path's value2d does) and resets them afterwards. sbox / sboxi (0x052 / 0x4052, a screen-aligned box outline) was not implemented; Blender draws its grids and button borders as degenerate boxes. Each outline pixel is drawn once. Monitor: `ps2 key <shift|ctrl|alt> <down|up>` holds a modifier across other input; IRIS GL programs read the modifier's state when they handle the key, so `ps2 type A` reached Blender as a plain a. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ps2 mouse sent one packet per command, so moves past the 9-bit delta range were mangled and large ones hit X's acceleration erratically. Send the move as packets of at most 50 mickeys an axis, one a millisecond, the last carrying the remainder so the path stays straight. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Token 0x008 is gl_setreadsource (plane, absolute bank), not a draw-buffer no-op. Blender keeps its views in the back buffer and copies them to the front with readsource bank 1 and write mask 0x000FFF; reading bank 0 left views black on first open and made headers vanish when the pointer moved between views. libgl sends no swap tokens, so the absolute bank goes straight into read_src. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
expPolyPoint sends 0x161 after LINE_MODE / LINE_CLIP: a stream of (x, y) points, padded with (1280, 1024) pairs. It was unhandled, so xlock's pop and hop modes (the Pop and Space Plants screen savers) drew only their black window. Each point is drawn as a one-pixel line through the line clip. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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fixes for blender and screensavers on gr2/xz