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PS55DA2: Change to interlaced screen update

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This commit is contained in:
Akamaki
2026-02-21 02:26:54 +09:00
parent 894e4bb0cf
commit 3a199fb8cb
1 changed files with 37 additions and 25 deletions
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62
src/video/vid_ps55da2.c
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@@ -64,7 +64,7 @@
#define DA2_MASK_GAIJIRAM 0x3ffff /* 0x3FFFF */
#define DA2_MASK_VRAM 0xfffff /* 0xFFFFF */
#define DA2_MASK_VRAMPLANE 0x1ffff /* 0x1FFFF */
#define DA2_PIXELCLOCK 29000000.0 /* 58 MHz interlaced */
#define DA2_PIXELCLOCK 58000000.0 /* 58 MHz interlaced */
#define DA2_BLT_MEMSIZE 0x10
#define DA2_BLT_REGSIZE 0x40
#define DA2_DEBUG_BLTLOG_SIZE (DA2_BLT_REGSIZE + 1)
@@ -368,6 +368,7 @@ typedef struct da2_t {
int firstline, lastline;
int firstline_draw, lastline_draw;
int displine;
int oddeven;
/* Attribute Buffer E0000-E0FFFh (4 KB) */
uint8_t *cram;
@@ -441,6 +442,9 @@ typedef struct da2_t {
int old_pos2;
} da2_t;
static video_timings_t timing_da2_mca =
{ .type = VIDEO_MCA, .write_b = 4, .write_w = 4, .write_l = 10, .read_b = 4, .read_w = 4, .read_l = 10 };
static void da2_recalctimings(da2_t *da2);
static void da2_mmio_gc_writeW(uint32_t addr, uint16_t val, void *p);
static void da2_bitblt_exec(void *p);
@@ -515,7 +519,7 @@ da2_WritePlaneDataWithBitmask(uint32_t destaddr, const uint16_t mask, pixel32 *s
uint32_t writepx[8];
destaddr &= 0xfffffffe; /* align to word address to work bit shift correctly */
// da2_log("DA2_WPDWB addr %x mask %x rop %x shift %d\n", destaddr, mask, da2->bitblt.raster_op, da2->bitblt.bitshift_destr);
da2->changedvram[(DA2_MASK_VRAMPLANE & destaddr) >> 9] = changeframecount;
da2->changedvram[(DA2_MASK_VRAMPLANE & destaddr) >> 9] = 3;
destaddr <<= 3;
/* read destination data with big endian order */
for (uint8_t i = 0; i < 8; i++)
@@ -1245,7 +1249,7 @@ da2_out(uint16_t addr, uint16_t val, void *priv)
case 0x3C9: /* Data */
// da2_iolog("DA2 Out addr %03X idx %d:%d val %02X %04X:%04X esdi %04X:%04X\n", addr, da2->dac_write, da2->dac_pos, val, cs >> 4, cpu_state.pc, ES, DI);
da2->dac_status = 0;
da2->fullchange = changeframecount;
da2->fullchange = 3;
switch (da2->dac_pos) {
case 0:
da2->dac_r = val;
@@ -1283,7 +1287,7 @@ da2_out(uint16_t addr, uint16_t val, void *priv)
if (da2->ioctladdr == LS_RESET && val & 0x01) /* Reset register */
da2_reset_ioctl(da2);
else if (da2->ioctladdr == LS_MODE && ((oldval ^ val) & 0x03)) { /* Mode register */
da2->fullchange = changeframecount;
da2->fullchange = 3;
da2_recalctimings(da2);
da2_updatevidselector(da2);
}
@@ -1372,7 +1376,7 @@ da2_out(uint16_t addr, uint16_t val, void *priv)
case LC_START_V_DISPLAY_ENAB:
case LC_VIEWPORT_SELECT:
case LC_VIEWPORT_PRIORITY:
da2->fullchange = changeframecount;
da2->fullchange = 3;
da2_recalctimings(da2);
break;
default:
@@ -1391,13 +1395,13 @@ da2_out(uint16_t addr, uint16_t val, void *priv)
// da2_iolog("set attraddr: %X\n", da2->attraddr);
} else {
if ((da2->attraddr == LV_PANNING) && (da2->attrc[LV_PANNING] != val))
da2->fullchange = changeframecount;
da2->fullchange = 3;
if (da2->attrc[da2->attraddr & 0x3f] != val)
da2_iolog("attr changed %x: %x -> %x\n", da2->attraddr & 0x3f, da2->attrc[da2->attraddr & 0x3f], val);
da2->attrc[da2->attraddr & 0x3f] = val;
// da2_iolog("set attrc %x: %x\n", da2->attraddr & 31, val);
if (da2->attraddr < 16)
da2->fullchange = changeframecount;
da2->fullchange = 3;
if (da2->attraddr == LV_MODE_CONTROL || da2->attraddr < 0x10) {
for (uint8_t c = 0; c < 16; c++) {
// if (da2->attrc[LV_MODE_CONTROL] & 0x80) da2->egapal[c] = (da2->attrc[c] & 0xf) | ((da2->attrc[0x14] & 0xf) << 4);
@@ -1411,7 +1415,7 @@ da2_out(uint16_t addr, uint16_t val, void *priv)
switch (da2->attraddr) {
case LV_COLOR_PLANE_ENAB:
if ((val & 0xff) != da2->plane_mask)
da2->fullchange = changeframecount;
da2->fullchange = 3;
da2->plane_mask = val & 0xff;
break;
case LV_CURSOR_CONTROL:
@@ -2743,7 +2747,7 @@ da2_mmio_write(uint32_t addr, uint8_t val, void *priv)
//}
#endif
cycles -= video_timing_write_b;
da2->changedvram[addr >> 9] = changeframecount;/* 0x1FFFF -> 0x1F */
da2->changedvram[addr >> 9] = 3;/* 0x1FFFF -> 0x1F */
addr <<= 3;
for (uint8_t i = 0; i < 8; i++)
@@ -2804,7 +2808,7 @@ da2_mmio_write(uint32_t addr, uint8_t val, void *priv)
} else { /* mode 3h text */
cycles -= video_timing_write_b;
da2_vram_w(addr, val, da2);
da2->fullchange = 2;
da2->fullchange = 3;
}
}
static uint16_t
@@ -2843,7 +2847,7 @@ da2_mmio_gc_writeW(uint32_t addr, uint16_t val, void *priv)
// da2_log("da2_gcW m%d a%x d%x\n", da2->writemode, addr, val);
// da2_log("da2_gcW %05X %02X %04X:%04X esdi %04X:%04X dssi %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc, ES, DI, DS, SI);
da2->changedvram[addr >> 9] = changeframecount;
da2->changedvram[addr >> 9] = 3;
addr <<= 3;
for (uint8_t i = 0; i < 8; i++)
@@ -2942,7 +2946,7 @@ da2_code_write(uint32_t addr, uint8_t val, void *priv)
// if ((addr & ~0xfff) != 0xE0000) return;
addr &= DA2_MASK_CRAM;
da2->cram[addr] = val;
da2->fullchange = 2;
da2->fullchange = 3;
}
static void
da2_code_writeb(uint32_t addr, uint8_t val, void *priv)
@@ -2987,7 +2991,7 @@ da2_code_readw(uint32_t addr, void *priv)
}
static void
da2_doblit(int y1, int y2, int wx, int wy, da2_t *da2)
da2_doblit(int wx, int wy, da2_t *da2)
{
if (wx != xsize || wy != ysize) {
xsize = wx;
@@ -3026,14 +3030,14 @@ da2_poll(void *priv)
video_wait_for_buffer();
}
if (!da2->override)
if (!da2->override && ((da2->displine ^ !da2->oddeven) & 1))
da2->render(da2);
if (da2->lastline < da2->displine)
da2->lastline = da2->displine;
}
// da2_log("%03i %06X %06X\n", da2->displine, da2->memaddr,da2->vram_display_mask);
// if(da2->fullchange)
// pclog("%03i %05X %d %d\n", da2->displine, da2->memaddr, ((da2->displine ^ !da2->oddeven) & 1), da2->fullchange);
da2->displine++;
if ((da2->cgastat & 8) && ((da2->displine & 0xf) == (da2->crtc[LC_VERTICAL_SYNC_END] & 0xf)) && da2->vslines) {
// da2_log("Vsync off at line %i\n",displine);
@@ -3085,14 +3089,13 @@ da2_poll(void *priv)
// if (da2->crtc[10] & 0x20) da2->cursoron = 0;
// else da2->cursoron = da2->blink & 16;
if (da2->ioctl[LS_MODE] & 1) { /* in text mode */
if (da2->attrc[LV_CURSOR_CONTROL] & 0x01) /* cursor blinking */
{
if (da2->attrc[LV_CURSOR_CONTROL] & 0x01) {/* cursor blinking */
da2->cursoron = (da2->blink | 1) & da2->blinkconf;
} else {
da2->cursoron = 0;
}
if (!(da2->blink & (0x10 - 1))) /* force redrawing for cursor and blink attribute */
da2->fullchange = 2;
if (!(da2->blink & (0x08 - 1))) /* force redrawing for cursor and blink attribute */
da2->fullchange = 3;
}
da2->blink++;
@@ -3103,6 +3106,7 @@ da2_poll(void *priv)
// memset(changedvram,0,2048); del
if (da2->fullchange) {
da2->fullchange--;
// pclog("fc %d %d\n",da2->fullchange,da2->oddeven);
}
}
if (da2->vc == da2->vsyncstart) {
@@ -3112,10 +3116,15 @@ da2_poll(void *priv)
da2->cgastat |= 8;
x = da2->hdisp;
if (!da2->oddeven)
da2->lastline++;
if (da2->oddeven)
da2->firstline--;
wx = x;
wy = da2->lastline - da2->firstline;
da2_doblit(da2->firstline_draw, da2->lastline_draw + 1, wx, wy, da2);
da2_doblit(wx, wy, da2);
da2->firstline = 2000;
da2->lastline = 0;
@@ -3123,7 +3132,8 @@ da2_poll(void *priv)
da2->firstline_draw = 2000;
da2->lastline_draw = 0;
changeframecount = 2;
da2->oddeven ^= 1;
da2->vslines = 0;
da2->memaddr
@@ -3137,7 +3147,7 @@ da2_poll(void *priv)
// da2_log("VC vtotal\n");
// printf("Frame over at line %i %i %i %i\n",displine,vc,da2_vsyncstart,da2_dispend);
da2->vc = 0;
da2->scanline = da2->crtc[LC_PRESET_ROW_SCANJ] & 0x1f;
da2->scanline = da2->crtc[LC_PRESET_ROW_SCANJ] & 0x1f;
da2->dispon = 1;
da2->displine = 0;
da2->scrollcache = da2->attrc[LV_PANNING] & 7;
@@ -3229,7 +3239,8 @@ da2_reset(void *priv)
da2->attrc[LV_CURSOR_COLOR] = 0x0f; /* cursor color */
da2->crtc[LC_HORIZONTAL_TOTAL] = 63; /* Horizontal Total */
da2->crtc[LC_VERTICAL_TOTALJ] = 255; /* Vertical Total (These two must be set before the timer starts.) */
da2->memaddr_latch = 0;
da2->memaddr_latch = 0;
da2->oddeven = 0;
da2->attrc[LV_CURSOR_CONTROL] = 0x13; /* cursor options */
da2->attr_palette_enable = 0; /* disable attribute generator */
@@ -3278,6 +3289,7 @@ da2_init(UNUSED(const device_t *info))
mca_add(da2_mca_read, da2_mca_write, da2_mca_feedb, da2_mca_reset, da2);
da2->da2const = (uint64_t) ((cpuclock / DA2_PIXELCLOCK) * (double) (1ull << 32));
video_inform(VIDEO_FLAG_TYPE_SPECIAL, &timing_da2_mca);
memset(da2->bitblt.payload, 0x00, DA2_BLT_MEMSIZE);
memset(da2->bitblt.reg, 0xfe, DA2_BLT_REGSIZE * sizeof(uint32_t)); /* clear memory */
#ifdef ENABLE_DA2_DEBUGBLT
@@ -3432,7 +3444,7 @@ static void
da2_force_redraw(void *priv)
{
da2_t *da2 = (da2_t *) priv;
da2->fullchange = changeframecount;
da2->fullchange = 3;
}
static const device_config_t da2_configuration[] = {