[pcsx_rearmed.git] / plugins / gpu_neon / 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.
 */

#include <stdint.h>

#define CMD_BUFFER_LEN          1024

struct psx_gpu {
  uint16_t vram[1024 * 512];
  uint16_t guard[1024 * 512]; // overdraw guard
  uint32_t cmd_buffer[CMD_BUFFER_LEN];
  uint32_t regs[16];
  union {
    uint32_t reg;
    struct {
      uint32_t tx:4;        //  0 texture page
      uint32_t ty:1;
      uint32_t abr:2;
      uint32_t tp:2;        //  7 t.p. mode (4,8,15bpp)
      uint32_t dtd:1;       //  9 dither
      uint32_t dfe:1;
      uint32_t md:1;        // 11 set mask bit when drawing
      uint32_t me:1;        // 12 no draw on mask
      uint32_t unkn:3;
      uint32_t width1:1;    // 16
      uint32_t width0:2;
      uint32_t dheight:1;   // 19 double height
      uint32_t video:1;     // 20 NTSC,PAL
      uint32_t rgb24:1;
      uint32_t interlace:1; // 22 interlace on
      uint32_t blanking:1;  // 23 display not enabled
      uint32_t unkn2:2;
      uint32_t busy:1;      // 26 !busy drawing
      uint32_t img:1;       // 27 ready to DMA image data
      uint32_t com:1;       // 28 ready for commands
      uint32_t dma:2;       // 29 off, ?, to vram, from vram
      uint32_t lcf:1;       // 31
    };
  } 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;
    int offset;
  } dma;
  int cmd_len;
  const uint32_t *lcf_hc;
  uint32_t zero;
  struct {
    uint32_t fb_dirty:1;
  } state;
  struct {
    uint32_t enabled:1;
    uint32_t active:1;
    uint32_t frame_ready:1;
    const int *advice;
  } frameskip;
};

extern struct psx_gpu gpu;

extern const unsigned char cmd_lengths[256];

void do_cmd_list(uint32_t *list, int count);

int vout_init(void);
int vout_finish(void);
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	#include <stdint.h>
	12
	13	#define CMD_BUFFER_LEN 1024
	14
	15	struct psx_gpu {
	16	uint16_t vram[1024 * 512];
	17	uint16_t guard[1024 * 512]; // overdraw guard
	18	uint32_t cmd_buffer[CMD_BUFFER_LEN];
	19	uint32_t regs[16];
	20	union {
	21	uint32_t reg;
	22	struct {
	23	uint32_t tx:4; // 0 texture page
	24	uint32_t ty:1;
	25	uint32_t abr:2;
	26	uint32_t tp:2; // 7 t.p. mode (4,8,15bpp)
	27	uint32_t dtd:1; // 9 dither
	28	uint32_t dfe:1;
	29	uint32_t md:1; // 11 set mask bit when drawing
	30	uint32_t me:1; // 12 no draw on mask
	31	uint32_t unkn:3;
	32	uint32_t width1:1; // 16
	33	uint32_t width0:2;
	34	uint32_t dheight:1; // 19 double height
	35	uint32_t video:1; // 20 NTSC,PAL
	36	uint32_t rgb24:1;
	37	uint32_t interlace:1; // 22 interlace on
	38	uint32_t blanking:1; // 23 display not enabled
	39	uint32_t unkn2:2;
	40	uint32_t busy:1; // 26 !busy drawing
	41	uint32_t img:1; // 27 ready to DMA image data
	42	uint32_t com:1; // 28 ready for commands
	43	uint32_t dma:2; // 29 off, ?, to vram, from vram
	44	uint32_t lcf:1; // 31
	45	};
	46	} status;
	47	uint32_t gp0;
	48	uint32_t ex_regs[8];
	49	struct {
	50	int hres, vres;
	51	int x, y, w, h;
	52	int x1, x2;
	53	int y1, y2;
	54	} screen;
	55	struct {
	56	int x, y, w, h;
	57	int offset;
	58	} dma;
	59	int cmd_len;
	60	const uint32_t *lcf_hc;
	61	uint32_t zero;
	62	struct {
	63	uint32_t fb_dirty:1;
	64	} state;
	65	struct {
	66	uint32_t enabled:1;
	67	uint32_t active:1;
	68	uint32_t frame_ready:1;
	69	const int *advice;
	70	} frameskip;
	71	};
	72
	73	extern struct psx_gpu gpu;
	74
	75	extern const unsigned char cmd_lengths[256];
	76
	77	void do_cmd_list(uint32_t *list, int count);
	78
	79	int vout_init(void);
	80	int vout_finish(void);