2 Commits

Author	SHA1	Message	Date
Matthew Stanley	5a63372a51	fix: GPU shaded line interpolation + polyline support + stub audit ... S1: gp0_exec_shaded_line() now interpolates between C0 and C1 colors along the line instead of using flat C0 color for the entire line. Added sw_draw_shaded_line() to the SW renderer with per-pixel RGB interpolation using Bresenham stepping. S2: Polyline commands (GP0 0x48-0x4F mono, 0x58-0x5F shaded) no longer crash with exit(1). Implemented as GP0_POLYLINE_MONO/SHADED states that accumulate vertices until the terminator word (bit pattern with high bits set), drawing line segments between consecutive pairs. Added STUBS_TO_FIX.md tracking all remaining stubs found in the comprehensive audit (MDEC, SPU, DMA channels, polylines, shaded lines). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-24 14:38:38 -07:00
Matthew Stanley	adaea3d8bf	Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32 ... Audited psxrecomp-v3 and psxrecomp-v2 hardware simulation files. Carried forward only pure hardware simulation with zero HLE/BIOS contamination. Each file was read in full and checked for: - event_deliver / bios_ / interpreter_ references (none found) - printf/fprintf (removed from GTE, none in others) - stubs (return 0, TODO, FIXME) (none found) - v3-specific state dependencies (removed psx_runtime.h, automation.h) Added files: - gte.cpp/h: COP2 coprocessor (876 lines, all GTE commands) - gpu_sw_renderer.c/h: Software rasterizer with texture support (723 lines) - crc32.c/h: CRC32 utility (27 lines) - iso_reader.cpp/h + iso_reader_c.cpp: ISO 9660 reader (490 lines) Modified: - cpu_state.h: Added gte_data[32] and gte_ctrl[32] arrays - CMakeLists.txt: Added new source files Explicitly rejected (per CLAUDE.md rule 7): - bios.c, events.c, threads.c, interpreter.c (HLE/kernel state) - bios_trace.c, func_logger.c, main_runner.cpp (interpreter era) - cdrom.c (has event_deliver + hard-coded RAM writes, needs surgery) - spu.cpp from v2 (WinMM-only, needs SDL port) Build verified: clean compile and link. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-12 20:57:41 -07:00