[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>

#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

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

#define PSX_GPU_STATUS_DHEIGHT		BIT(19)
#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 {
  uint32_t cmd_buffer[CMD_BUFFER_LEN];
  uint32_t regs[16];
  uint16_t *vram;
  uint32_t status;
  uint32_t gp0;
  uint32_t ex_regs[8];
  struct {
    int hres, vres;
    int x, y, w, h;
    int x1, x2;
    int y1, y2;
  } 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 old_interlace:1;
    uint32_t allow_interlace:2;
    uint32_t blanked:1;
    uint32_t enhancement_enable:1;
    uint32_t enhancement_active:1;
    uint32_t downscale_enable:1;
    uint32_t downscale_active:1;
    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;
  } 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;
    const int *advice;
    const int *force;
    int *dirty;
    uint32_t last_flip_frame;
    uint32_t pending_fill[3];
  } frameskip;
  uint32_t scratch_ex_regs[8]; // for threaded rendering
  int useDithering:1; /* 0 - off , 1 - on */
  uint16_t *(*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);
};

extern struct psx_gpu gpu;

extern const unsigned char cmd_lengths[256];

int do_cmd_list(uint32_t *list, int count, int *last_cmd);

struct rearmed_cbs;

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);
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_res_change(void);
void renderer_notify_update_lace(int updated);
void renderer_sync(void);

int  vout_init(void);
int  vout_finish(void);
void vout_update(void);
void vout_blank(void);
void vout_set_config(const struct rearmed_cbs *config);

/* 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);
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);
void GPUupdateLace(void);
long GPUopen(void **dpy);
long GPUclose(void);
void GPUvBlank(int is_vblank, int lcf);
void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);

#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
	16	#ifdef __cplusplus
	17	extern "C" {
	18	#endif
	19
	20	#define CMD_BUFFER_LEN 1024
	21
	22	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	23	#define HTOLE32(x) __builtin_bswap32(x)
	24	#define HTOLE16(x) __builtin_bswap16(x)
	25	#define LE32TOH(x) __builtin_bswap32(x)
	26	#define LE16TOH(x) __builtin_bswap16(x)
	27	#else
	28	#define HTOLE32(x) (x)
	29	#define HTOLE16(x) (x)
	30	#define LE32TOH(x) (x)
	31	#define LE16TOH(x) (x)
	32	#endif
	33
	34	#define BIT(x) (1 << (x))
	35
	36	#define PSX_GPU_STATUS_DHEIGHT BIT(19)
	37	#define PSX_GPU_STATUS_RGB24 BIT(21)
	38	#define PSX_GPU_STATUS_INTERLACE BIT(22)
	39	#define PSX_GPU_STATUS_BLANKING BIT(23)
	40	#define PSX_GPU_STATUS_IMG BIT(27)
	41	#define PSX_GPU_STATUS_DMA(x) ((x) << 29)
	42	#define PSX_GPU_STATUS_DMA_MASK (BIT(29) \| BIT(30))
	43
	44	struct psx_gpu {
	45	uint32_t cmd_buffer[CMD_BUFFER_LEN];
	46	uint32_t regs[16];
	47	uint16_t *vram;
	48	uint32_t status;
	49	uint32_t gp0;
	50	uint32_t ex_regs[8];
	51	struct {
	52	int hres, vres;
	53	int x, y, w, h;
	54	int x1, x2;
	55	int y1, y2;
	56	} screen;
	57	struct {
	58	int x, y, w, h;
	59	short int offset, is_read;
	60	} dma, dma_start;
	61	int cmd_len;
	62	uint32_t zero;
	63	struct {
	64	uint32_t fb_dirty:1;
	65	uint32_t old_interlace:1;
	66	uint32_t allow_interlace:2;
	67	uint32_t blanked:1;
	68	uint32_t enhancement_enable:1;
	69	uint32_t enhancement_active:1;
	70	uint32_t downscale_enable:1;
	71	uint32_t downscale_active:1;
	72	uint32_t *frame_count;
	73	uint32_t hcnt; / hsync count */
	74	struct {
	75	uint32_t addr;
	76	uint32_t cycles;
	77	uint32_t frame;
	78	uint32_t hcnt;
	79	} last_list;
	80	uint32_t last_vram_read_frame;
	81	} state;
	82	struct {
	83	int32_t set:3; /* -1 auto, 0 off, 1-3 fixed */
	84	int32_t cnt:3; /* amount skipped in a row */
	85	uint32_t active:1;
	86	uint32_t allow:1;
	87	uint32_t frame_ready:1;
	88	const int *advice;
	89	const int *force;
	90	int *dirty;
	91	uint32_t last_flip_frame;
	92	uint32_t pending_fill[3];
	93	} frameskip;
	94	uint32_t scratch_ex_regs[8]; // for threaded rendering
	95	int useDithering:1; /* 0 - off , 1 - on */
	96	uint16_t (get_enhancement_bufer)
	97	(int x, int y, int w, int h, int *vram_h);
	98	uint16_t (get_downscale_buffer)
	99	(int x, int y, int w, int h, int *vram_h);
	100	void (mmap)(unsigned int size);
	101	void (munmap)(void ptr, unsigned int size);
	102	};
	103
	104	extern struct psx_gpu gpu;
	105
	106	extern const unsigned char cmd_lengths[256];
	107
	108	int do_cmd_list(uint32_t list, int count, int last_cmd);
	109
	110	struct rearmed_cbs;
	111
	112	int renderer_init(void);
	113	void renderer_finish(void);
	114	void renderer_sync_ecmds(uint32_t * ecmds);
	115	void renderer_update_caches(int x, int y, int w, int h);
	116	void renderer_flush_queues(void);
	117	void renderer_set_interlace(int enable, int is_odd);
	118	void renderer_set_config(const struct rearmed_cbs *config);
	119	void renderer_notify_res_change(void);
	120	void renderer_notify_update_lace(int updated);
	121	void renderer_sync(void);
	122
	123	int vout_init(void);
	124	int vout_finish(void);
	125	void vout_update(void);
	126	void vout_blank(void);
	127	void vout_set_config(const struct rearmed_cbs *config);
	128
	129	/* listing these here for correct linkage if rasterizer uses c++ */
	130	struct GPUFreeze;
	131
	132	long GPUinit(void);
	133	long GPUshutdown(void);
	134	void GPUwriteDataMem(uint32_t *mem, int count);
	135	long GPUdmaChain(uint32_t *rambase, uint32_t addr);
	136	void GPUwriteData(uint32_t data);
	137	void GPUreadDataMem(uint32_t *mem, int count);
	138	uint32_t GPUreadData(void);
	139	uint32_t GPUreadStatus(void);
	140	void GPUwriteStatus(uint32_t data);
	141	long GPUfreeze(uint32_t type, struct GPUFreeze *freeze);
	142	void GPUupdateLace(void);
	143	long GPUopen(void **dpy);
	144	long GPUclose(void);
	145	void GPUvBlank(int is_vblank, int lcf);
	146	void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);
	147
	148	#ifdef __cplusplus
	149	}
	150	#endif
	151
	152	#endif /* __GPULIB_GPU_H__ */