mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Matthew Stanley
bd6dfa12da
- memcard.c: stop auto-creating blank cards when .mcd files don't exist; missing file now correctly means "no card in slot" - gpu.c: fix setup_textured_draw raw texture flag (was ? 0 : 0, now ? 1 : 0 for identity-modulation bypass) - gpu.c: add shaded quad vertex capture mechanism for Phase 4.5 debug (capture_quads / get_quads debug commands) - gte.cpp: add gte_exec_count to track total GTE compute commands executed (exposed via gte_state debug command) - debug_server.c: wire up capture_quads, get_quads commands and gte_exec field in gte_state response Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
60 lines
1.9 KiB
C
60 lines
1.9 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_V4_GPU_H
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#define PSXRECOMP_V4_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_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 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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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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/* 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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#ifdef __cplusplus
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}
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#endif
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#endif /* PSXRECOMP_V4_GPU_H */
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