mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Matthew Stanley
5b00d497e4
Add a settings.toml override layer read at boot (next to the exe), plus two config-driven runtime knobs feeding the GL/shadow merges. config_loader: parse [video] crt_filter (raw/crt/composite/trinitron -> 0..3) into video_screen_kind and [audio] spu_hq into audio_spu_hq; add UserSettings + load_user_settings()/save_user_settings() (best-effort, never throws; hand-written TOML). gpu: gpu_set_screen_kind(int); screen_lut_ensure() precedence is PSX_SCREEN env > config, default raw stays byte-identical. spu_shadow: spu_shadow_set_enabled(int); env PSX_AUDIO_SHADOW > config. main.cpp: g_video_screen + g_audio_spu_hq globals from game.toml; load <exe_dir>/settings.toml overriding renderer/SS/AA/texfilter/screen + spu_hq + bios/disc (CLI --bios/--disc still win); call setters at init. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/* gpu.h — PS1 GPU hardware simulation (Phase 3).
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*
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* Implements GPUSTAT, GP0, GP1, and 1024x512 16-bit VRAM.
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* No rendering to screen — just correct hardware state transitions.
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*/
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#ifndef PSXRECOMP_GPU_H
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#define PSXRECOMP_GPU_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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void gpu_init(void);
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uint32_t gpu_read_gpustat(void); /* 0x1F801814 read */
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uint32_t gpu_read_gpuread(void); /* 0x1F801810 read */
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void gpu_write_gp0(uint32_t val); /* 0x1F801810 write */
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void gpu_write_gp1(uint32_t val); /* 0x1F801814 write */
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void gpu_set_gp0_source(uint32_t addr); /* diagnostic source for next GP0 word */
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void gpu_vblank_tick(void); /* Toggle LCF, called at each simulated vblank */
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/* Display presentation accessors (Phase 3). */
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const uint16_t* gpu_get_vram(void); /* Pointer to 1024x512 16-bit VRAM */
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typedef struct {
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uint32_t display_x, display_y; /* VRAM start of display area (GP1(05h)) */
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uint32_t width, height; /* Derived from display mode + ranges */
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int depth24; /* GP1(08h) display depth flag: RGB888 scanout */
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int disabled; /* GP1(03h) display disable flag */
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} GpuDisplayInfo;
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void gpu_get_display_info(GpuDisplayInfo* out);
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void gpu_display_pixel_rgb(const GpuDisplayInfo* di, uint32_t x, uint32_t y,
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uint8_t* r, uint8_t* g, uint8_t* b);
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uint32_t gpu_display_pixel_argb(const GpuDisplayInfo* di, uint32_t x, uint32_t y);
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uint64_t gpu_get_gp0_count(void); /* Total GP0 writes since init */
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void gpu_get_gp0_stats(uint64_t* nop, uint64_t* fill, uint64_t* draw, uint64_t* env, uint64_t* copy);
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typedef struct {
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uint32_t left, top, right, bottom;
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int32_t offset_x, offset_y;
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} GpuDrawArea;
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void gpu_get_draw_area(GpuDrawArea* out);
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uint16_t gpu_vram_peek(int x, int y);
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/* Shaded quad vertex capture (Phase 4.5 debug). */
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typedef struct {
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int32_t vx[4], vy[4];
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uint32_t color[4];
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} GpuSqCapEntry;
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void gpu_arm_shaded_quad_capture(void);
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int gpu_get_shaded_quad_capture(const GpuSqCapEntry** out);
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/* Per-frame GP0 command ring (always-on; query via debug server).
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* Each entry records the GP0 command header + up to 6 payload words
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* (longer commands like 0x3C shaded textured quad are truncated to 6).
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* Stamped with the s_frame_count value at issue time so a debug
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* client can pull all commands for any frame in the ring window. */
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#define GPU_GP0_RING_MAX_WORDS 12
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typedef struct {
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uint32_t frame;
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uint32_t seq;
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uint32_t src_addr; /* RAM/MMIO source address of command header, if known */
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uint32_t pc; /* g_debug_last_store_pc when command completes */
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uint8_t opcode;
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uint8_t n_words; /* total command length; >MAX means truncated */
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uint16_t pad;
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uint32_t cmd[GPU_GP0_RING_MAX_WORDS];
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} GpuGp0RingEntry;
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uint64_t gpu_gp0_ring_total(void);
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uint32_t gpu_gp0_ring_capacity(void);
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uint32_t gpu_gp0_ring_max_words(void);
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int gpu_gp0_ring_dump_frame(uint32_t frame, GpuGp0RingEntry *out, int max_out);
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void gpu_gp0_ring_frame_span(uint32_t *out_oldest, uint32_t *out_newest);
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/* Vblank presentation callback — called from gpu_vblank_tick(). */
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typedef void (*gpu_vblank_cb)(void);
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void gpu_set_vblank_callback(gpu_vblank_cb cb);
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/* Present-time screen-colour model (see color_lut.h ScreenKind: 0=raw,
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* 1=crt, 2=composite, 3=trinitron). Config/launcher-driven; the PSX_SCREEN
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* env var, if set, overrides this. Default 0 (raw) is byte-identical. */
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void gpu_set_screen_kind(int kind);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PSXRECOMP_GPU_H */
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