[pcsx_rearmed.git] / plugins / gpulib / gpu.h

/*
 * (C) Gražvydas "notaz" Ignotas, 2011
 *
 * This work is licensed under the terms of any of these licenses
 * (at your option):
 *  - GNU GPL, version 2 or later.
 *  - GNU LGPL, version 2.1 or later.
 * See the COPYING file in the top-level directory.
 */

#ifndef __GPULIB_GPU_H__
#define __GPULIB_GPU_H__

#include <stdint.h>
#include <string.h>
#include "../../include/compiler_features.h"

//#define RAW_FB_DISPLAY

#define gpu_log(gpu, fmt, ...) \
  SysPrintf("%d:%03d: " fmt, *(gpu)->state.frame_count, *(gpu)->state.hcnt, ##__VA_ARGS__)

#ifdef LOG_UNHANDLED
#define log_anomaly gpu_log
#else
#define log_anomaly(...)
#endif

#ifdef __cplusplus
extern "C" {
#endif

#define CMD_BUFFER_LEN          1024

#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define HTOLE32(x) __builtin_bswap32(x)
#define HTOLE16(x) __builtin_bswap16(x)
#define LE32TOH(x) __builtin_bswap32(x)
#define LE16TOH(x) __builtin_bswap16(x)
#else
#define HTOLE32(x) (x)
#define HTOLE16(x) (x)
#define LE32TOH(x) (x)
#define LE16TOH(x) (x)
#endif

#undef BIT
#define BIT(x) (1u << (x))

#define PSX_GPU_STATUS_DHEIGHT		BIT(19)
#define PSX_GPU_STATUS_PAL		BIT(20)
#define PSX_GPU_STATUS_RGB24		BIT(21)
#define PSX_GPU_STATUS_INTERLACE	BIT(22)
#define PSX_GPU_STATUS_BLANKING		BIT(23)
#define PSX_GPU_STATUS_IMG			BIT(27)
#define PSX_GPU_STATUS_DMA(x)		((x) << 29)
#define PSX_GPU_STATUS_DMA_MASK		(BIT(29) | BIT(30))

struct psx_gpu_async;

struct psx_gpu_screen {
  short hres, vres;
  short x, y, w, h;
  short x1, x2;
  short y1, y2;
  short src_x, src_y;
};

struct psx_gpu {
  uint32_t regs[16];
  uint16_t *vram;
  uint32_t status;
  uint32_t gp0;
  uint32_t ex_regs[8];  // in native endian
  struct psx_gpu_screen screen;
  struct {
    int x, y, w, h;
    short int offset, is_read;
  } dma, dma_start;
  int cmd_len;
  uint32_t zero;
  struct {
    uint32_t fb_dirty:1;
    uint32_t fb_dirty_display_area:1;
    uint32_t draw_display_intersect:1;
    uint32_t old_interlace:1;
    uint32_t allow_interlace:2;
    uint32_t blanked:1;
    uint32_t vblank:1;
    uint32_t use_alternative_flip:1;
    uint32_t enhancement_enable:1;
    uint32_t enhancement_active:1;
    uint32_t enhancement_was_active:1;
    uint32_t downscale_enable:1;
    uint32_t dims_changed:1;
    uint32_t show_overscan:2;
    uint32_t *frame_count;
    uint32_t *hcnt; /* hsync count */
    struct {
      uint32_t addr;
      uint32_t cycles;
      uint32_t frame;
      uint32_t hcnt;
    } last_list;
    uint32_t last_vram_read_frame;
    uint32_t last_adflip_frame;
    uint16_t w_out_old, h_out_old, src_y_old;
    uint32_t status_vo_old;
    short screen_centering_type;
    short screen_centering_type_default;
    short screen_centering_x;
    short screen_centering_y;
    int screen_centering_h_adj;
  } state;
  struct {
    int32_t set:3; /* -1 auto, 0 off, 1-3 fixed */
    int32_t cnt:3; /* amount skipped in a row */
    uint32_t active:1;
    uint32_t allow:1;
    uint32_t frame_ready:1;
    uint32_t ecmds_dirty_renderer:1;
    const int *advice;
    const int *force;
    int *dirty;
    uint32_t last_flip_frame;
    uint32_t pending_fill[3];
  } frameskip;
  uint32_t cmd_buffer[CMD_BUFFER_LEN];
  struct psx_gpu_async *async;
  void *(*get_enhancement_bufer)
    (int *x, int *y, int *w, int *h, int *vram_h);
  uint16_t *(*get_downscale_buffer)
    (int *x, int *y, int *w, int *h, int *vram_h);
  void *(*mmap)(unsigned int size);
  void  (*munmap)(void *ptr, unsigned int size);
  void  (*gpu_state_change)(int what, int cycles); // psx_gpu_state
};

extern struct psx_gpu gpu;

extern const unsigned char cmd_lengths[256];

struct rearmed_cbs;

// ex_regs: renderer should write Ex values for gpulib, never use them itself
int  renderer_do_cmd_list(uint32_t *list, int count, uint32_t *ex_regs,
	int *cycles_sum, int *cycles_last, int *last_cmd);

int  renderer_init(void);
void renderer_finish(void);
void renderer_sync_ecmds(uint32_t * ecmds);
void renderer_update_caches(int x, int y, int w, int h, int state_changed);
void renderer_flush_queues(void);
void renderer_set_interlace(int enable, int is_odd);
void renderer_set_config(const struct rearmed_cbs *config);
void renderer_notify_screen_change(const struct psx_gpu_screen *screen);

int  vout_init(void);
int  vout_finish(void);
int  vout_update(struct psx_gpu *gpu, int src_x, int src_y);
void vout_blank(struct psx_gpu *gpu);
void vout_set_config(const struct rearmed_cbs *config);

// helpers
#define VRAM_MEM_XY(vram_, x, y) &vram_[(y) * 1024 + (x)]

int  do_vram_copy(uint16_t *vram, const uint32_t *ex_regs,
       const uint32_t *params, int *cpu_cycles);

int  prim_try_simplify_quad_t (void *simplified, const void *prim);
int  prim_try_simplify_quad_gt(void *simplified, const void *prim);

void cpy_mask(uint16_t *dst, const uint16_t *src, int l, uint32_t r6);

static inline void do_vram_line(uint16_t *vram_, int x, int y,
    uint16_t *mem, int l, int is_read, uint32_t r6)
{
  uint16_t *vram = VRAM_MEM_XY(vram_, x, y);
  if (unlikely(is_read))
    memcpy(mem, vram, l * 2);
  else if (unlikely(r6))
    cpy_mask(vram, mem, l, r6);
  else
    memcpy(vram, mem, l * 2);
}

/* listing these here for correct linkage if rasterizer uses c++ */
struct GPUFreeze;

long GPUinit(void);
long GPUshutdown(void);
void GPUwriteDataMem(uint32_t *mem, int count);
long GPUdmaChain(uint32_t *rambase, uint32_t addr,
		uint32_t *progress_addr, int32_t *cycles_last_cmd);
void GPUwriteData(uint32_t data);
void GPUreadDataMem(uint32_t *mem, int count);
uint32_t GPUreadData(void);
uint32_t GPUreadStatus(void);
void GPUwriteStatus(uint32_t data);
long GPUfreeze(uint32_t type, struct GPUFreeze *freeze, uint16_t **vram_ptr);
long GPUopen(unsigned long *disp, char *cap, char *cfg);
long GPUclose(void);
void GPUvBlank(int is_vblank, int lcf);
void GPUgetScreenInfo(int *y, int *base_hres);
void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);

void SysPrintf(const char *fmt, ...);

#ifdef __cplusplus
}
#endif

#endif /* __GPULIB_GPU_H__ */
Commit	Line	Data
	1	/*
	2	* (C) Gražvydas "notaz" Ignotas, 2011
	3	*
	4	* This work is licensed under the terms of any of these licenses
	5	* (at your option):
	6	* - GNU GPL, version 2 or later.
	7	* - GNU LGPL, version 2.1 or later.
	8	* See the COPYING file in the top-level directory.
	9	*/
	10
	11	#ifndef __GPULIB_GPU_H__
	12	#define __GPULIB_GPU_H__
	13
	14	#include <stdint.h>
	15	#include <string.h>
	16	#include "../../include/compiler_features.h"
	17
	18	//#define RAW_FB_DISPLAY
	19
	20	#define gpu_log(gpu, fmt, ...) \
	21	SysPrintf("%d:%03d: " fmt, (gpu)->state.frame_count, (gpu)->state.hcnt, ##__VA_ARGS__)
	22
	23	#ifdef LOG_UNHANDLED
	24	#define log_anomaly gpu_log
	25	#else
	26	#define log_anomaly(...)
	27	#endif
	28
	29	#ifdef __cplusplus
	30	extern "C" {
	31	#endif
	32
	33	#define CMD_BUFFER_LEN 1024
	34
	35	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	36	#define HTOLE32(x) __builtin_bswap32(x)
	37	#define HTOLE16(x) __builtin_bswap16(x)
	38	#define LE32TOH(x) __builtin_bswap32(x)
	39	#define LE16TOH(x) __builtin_bswap16(x)
	40	#else
	41	#define HTOLE32(x) (x)
	42	#define HTOLE16(x) (x)
	43	#define LE32TOH(x) (x)
	44	#define LE16TOH(x) (x)
	45	#endif
	46
	47	#undef BIT
	48	#define BIT(x) (1u << (x))
	49
	50	#define PSX_GPU_STATUS_DHEIGHT BIT(19)
	51	#define PSX_GPU_STATUS_PAL BIT(20)
	52	#define PSX_GPU_STATUS_RGB24 BIT(21)
	53	#define PSX_GPU_STATUS_INTERLACE BIT(22)
	54	#define PSX_GPU_STATUS_BLANKING BIT(23)
	55	#define PSX_GPU_STATUS_IMG BIT(27)
	56	#define PSX_GPU_STATUS_DMA(x) ((x) << 29)
	57	#define PSX_GPU_STATUS_DMA_MASK (BIT(29) \| BIT(30))
	58
	59	struct psx_gpu_async;
	60
	61	struct psx_gpu_screen {
	62	short hres, vres;
	63	short x, y, w, h;
	64	short x1, x2;
	65	short y1, y2;
	66	short src_x, src_y;
	67	};
	68
	69	struct psx_gpu {
	70	uint32_t regs[16];
	71	uint16_t *vram;
	72	uint32_t status;
	73	uint32_t gp0;
	74	uint32_t ex_regs[8]; // in native endian
	75	struct psx_gpu_screen screen;
	76	struct {
	77	int x, y, w, h;
	78	short int offset, is_read;
	79	} dma, dma_start;
	80	int cmd_len;
	81	uint32_t zero;
	82	struct {
	83	uint32_t fb_dirty:1;
	84	uint32_t fb_dirty_display_area:1;
	85	uint32_t draw_display_intersect:1;
	86	uint32_t old_interlace:1;
	87	uint32_t allow_interlace:2;
	88	uint32_t blanked:1;
	89	uint32_t vblank:1;
	90	uint32_t use_alternative_flip:1;
	91	uint32_t enhancement_enable:1;
	92	uint32_t enhancement_active:1;
	93	uint32_t enhancement_was_active:1;
	94	uint32_t downscale_enable:1;
	95	uint32_t dims_changed:1;
	96	uint32_t show_overscan:2;
	97	uint32_t *frame_count;
	98	uint32_t hcnt; / hsync count */
	99	struct {
	100	uint32_t addr;
	101	uint32_t cycles;
	102	uint32_t frame;
	103	uint32_t hcnt;
	104	} last_list;
	105	uint32_t last_vram_read_frame;
	106	uint32_t last_adflip_frame;
	107	uint16_t w_out_old, h_out_old, src_y_old;
	108	uint32_t status_vo_old;
	109	short screen_centering_type;
	110	short screen_centering_type_default;
	111	short screen_centering_x;
	112	short screen_centering_y;
	113	int screen_centering_h_adj;
	114	} state;
	115	struct {
	116	int32_t set:3; /* -1 auto, 0 off, 1-3 fixed */
	117	int32_t cnt:3; /* amount skipped in a row */
	118	uint32_t active:1;
	119	uint32_t allow:1;
	120	uint32_t frame_ready:1;
	121	uint32_t ecmds_dirty_renderer:1;
	122	const int *advice;
	123	const int *force;
	124	int *dirty;
	125	uint32_t last_flip_frame;
	126	uint32_t pending_fill[3];
	127	} frameskip;
	128	uint32_t cmd_buffer[CMD_BUFFER_LEN];
	129	struct psx_gpu_async *async;
	130	void (get_enhancement_bufer)
	131	(int x, int y, int w, int h, int *vram_h);
	132	uint16_t (get_downscale_buffer)
	133	(int x, int y, int w, int h, int *vram_h);
	134	void (mmap)(unsigned int size);
	135	void (munmap)(void ptr, unsigned int size);
	136	void (*gpu_state_change)(int what, int cycles); // psx_gpu_state
	137	};
	138
	139	extern struct psx_gpu gpu;
	140
	141	extern const unsigned char cmd_lengths[256];
	142
	143	struct rearmed_cbs;
	144
	145	// ex_regs: renderer should write Ex values for gpulib, never use them itself
	146	int renderer_do_cmd_list(uint32_t list, int count, uint32_t ex_regs,
	147	int cycles_sum, int cycles_last, int *last_cmd);
	148
	149	int renderer_init(void);
	150	void renderer_finish(void);
	151	void renderer_sync_ecmds(uint32_t * ecmds);
	152	void renderer_update_caches(int x, int y, int w, int h, int state_changed);
	153	void renderer_flush_queues(void);
	154	void renderer_set_interlace(int enable, int is_odd);
	155	void renderer_set_config(const struct rearmed_cbs *config);
	156	void renderer_notify_screen_change(const struct psx_gpu_screen *screen);
	157
	158	int vout_init(void);
	159	int vout_finish(void);
	160	int vout_update(struct psx_gpu *gpu, int src_x, int src_y);
	161	void vout_blank(struct psx_gpu *gpu);
	162	void vout_set_config(const struct rearmed_cbs *config);
	163
	164	// helpers
	165	#define VRAM_MEM_XY(vram_, x, y) &vram_[(y) * 1024 + (x)]
	166
	167	int do_vram_copy(uint16_t vram, const uint32_t ex_regs,
	168	const uint32_t params, int cpu_cycles);
	169
	170	int prim_try_simplify_quad_t (void simplified, const void prim);
	171	int prim_try_simplify_quad_gt(void simplified, const void prim);
	172
	173	void cpy_mask(uint16_t dst, const uint16_t src, int l, uint32_t r6);
	174
	175	static inline void do_vram_line(uint16_t *vram_, int x, int y,
	176	uint16_t *mem, int l, int is_read, uint32_t r6)
	177	{
	178	uint16_t *vram = VRAM_MEM_XY(vram_, x, y);
	179	if (unlikely(is_read))
	180	memcpy(mem, vram, l * 2);
	181	else if (unlikely(r6))
	182	cpy_mask(vram, mem, l, r6);
	183	else
	184	memcpy(vram, mem, l * 2);
	185	}
	186
	187	/* listing these here for correct linkage if rasterizer uses c++ */
	188	struct GPUFreeze;
	189
	190	long GPUinit(void);
	191	long GPUshutdown(void);
	192	void GPUwriteDataMem(uint32_t *mem, int count);
	193	long GPUdmaChain(uint32_t *rambase, uint32_t addr,
	194	uint32_t progress_addr, int32_t cycles_last_cmd);
	195	void GPUwriteData(uint32_t data);
	196	void GPUreadDataMem(uint32_t *mem, int count);
	197	uint32_t GPUreadData(void);
	198	uint32_t GPUreadStatus(void);
	199	void GPUwriteStatus(uint32_t data);
	200	long GPUfreeze(uint32_t type, struct GPUFreeze freeze, uint16_t *vram_ptr);
	201	long GPUopen(unsigned long disp, char cap, char *cfg);
	202	long GPUclose(void);
	203	void GPUvBlank(int is_vblank, int lcf);
	204	void GPUgetScreenInfo(int y, int base_hres);
	205	void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);
	206
	207	void SysPrintf(const char *fmt, ...);
	208
	209	#ifdef __cplusplus
	210	}
	211	#endif
	212
	213	#endif /* __GPULIB_GPU_H__ */