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/*
* (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;
uint32_t frame_count;
uint32_t *hcnt;
struct {
uint32_t addr;
uint32_t words;
uint32_t frame;
uint32_t hcnt;
} last_list;
} state;
struct {
int32_t set:3; /* -1 auto, 0 off, 1 fixed */
uint32_t active:1;
uint32_t frame_ready:1;
uint32_t skipped_blits:5;
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 renderer_init(void);
void renderer_sync_ecmds(uint32_t * ecmds);
void renderer_invalidate_caches(int x, int y, int w, int h);
void renderer_flush_queues(void);
int vout_init(void);
int vout_finish(void);
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