#define _rot_comp Pico_mcd->rot_comp
-static const int Table_Rot_Time[] =
-{
- 0x00054000, 0x00048000, 0x00040000, 0x00036000, //; 008-032 ; briefing - sprite
- 0x0002E000, 0x00028000, 0x00024000, 0x00022000, //; 036-064 ; arbre souvent
- 0x00021000, 0x00020000, 0x0001E000, 0x0001B800, //; 068-096 ; map thunderstrike
- 0x00019800, 0x00017A00, 0x00015C00, 0x00013E00, //; 100-128 ; logo défoncé
-
- 0x00012000, 0x00011800, 0x00011000, 0x00010800, //; 132-160 ; briefing - map
- 0x00010000, 0x0000F800, 0x0000F000, 0x0000E800, //; 164-192
- 0x0000E000, 0x0000D800, 0x0000D000, 0x0000C800, //; 196-224
- 0x0000C000, 0x0000B800, 0x0000B000, 0x0000A800, //; 228-256 ; batman visage
-
- 0x0000A000, 0x00009F00, 0x00009E00, 0x00009D00, //; 260-288
- 0x00009C00, 0x00009B00, 0x00009A00, 0x00009900, //; 292-320
- 0x00009800, 0x00009700, 0x00009600, 0x00009500, //; 324-352
- 0x00009400, 0x00009300, 0x00009200, 0x00009100, //; 356-384
-
- 0x00009000, 0x00008F00, 0x00008E00, 0x00008D00, //; 388-416
- 0x00008C00, 0x00008B00, 0x00008A00, 0x00008900, //; 420-448
- 0x00008800, 0x00008700, 0x00008600, 0x00008500, //; 452-476
- 0x00008400, 0x00008300, 0x00008200, 0x00008100, //; 480-512
-};
-
+static void gfx_do_line(unsigned int func, unsigned short *stamp_base,
+ unsigned int H_Dot);
static void gfx_cd_start(void)
{
- int upd_len;
+ int w, h;
+
+ w = _rot_comp.Reg_62;
+ h = _rot_comp.Reg_64;
+ if (w == 0 || h == 0) {
+ elprintf(EL_CD|EL_ANOMALY, "gfx_cd_start with %ux%u", w, h);
+ _rot_comp.Reg_64 = 0;
+ // irq?
+ return;
+ }
// _rot_comp.XD_Mul = ((_rot_comp.Reg_5C & 0x1f) + 1) * 4; // unused
_rot_comp.Function = (_rot_comp.Reg_58 & 7) | (Pico_mcd->s68k_regs[3] & 0x18); // Jmp_Adr
_rot_comp.YD = (_rot_comp.Reg_60 >> 3) & 7;
_rot_comp.Vector_Adr = (_rot_comp.Reg_66 & 0xfffe) << 2;
- upd_len = (_rot_comp.Reg_62 >> 3) & 0x3f;
- upd_len = Table_Rot_Time[upd_len];
- _rot_comp.Draw_Speed = _rot_comp.Float_Part = upd_len;
-
_rot_comp.Reg_58 |= 0x8000; // Stamp_Size, we start a new GFX operation
+ pcd_event_schedule_s68k(PCD_EVENT_GFX, 5 * w * h);
+
switch (_rot_comp.Reg_58 & 6) // Scr_16?
{
case 0: // ?
break;
}
- dprintf("gfx_cd_start, stamp_map_addr=%06x", _rot_comp.Stamp_Map_Adr);
+ if (PicoOpt & POPT_EN_MCD_GFX)
+ {
+ unsigned int func = _rot_comp.Function;
+ unsigned short *stamp_base = (unsigned short *) (Pico_mcd->word_ram2M + _rot_comp.Stamp_Map_Adr);
- gfx_cd_update();
+ while (h--)
+ gfx_do_line(func, stamp_base, w);
+ }
}
-static void gfx_completed(void)
+PICO_INTERNAL_ASM unsigned int gfx_cd_read(unsigned int a)
{
- _rot_comp.Reg_58 &= 0x7fff; // Stamp_Size
- _rot_comp.Reg_64 = 0;
- if (Pico_mcd->s68k_regs[0x33] & (1<<1))
- {
- elprintf(EL_INTS, "gfx_cd irq 1");
- SekInterruptS68k(1);
+ unsigned int d = 0;
+
+ switch (a) {
+ case 0x58: d = _rot_comp.Reg_58; break;
+ case 0x5A: d = _rot_comp.Reg_5A; break;
+ case 0x5C: d = _rot_comp.Reg_5C; break;
+ case 0x5E: d = _rot_comp.Reg_5E; break;
+ case 0x60: d = _rot_comp.Reg_60; break;
+ case 0x62: d = _rot_comp.Reg_62; break;
+ case 0x64:
+ d = _rot_comp.Reg_64;
+ if (_rot_comp.Reg_64 > 1)
+ // fudge..
+ _rot_comp.Reg_64--;
+ break;
+ case 0x66: break;
+ default: dprintf("gfx_cd_read FIXME: unexpected address: %02x", a); break;
}
-}
+ dprintf("gfx_cd_read(%02x) = %04x", a, d);
+
+ return d;
+
+}
-static void gfx_do(unsigned int func, unsigned short *stamp_base, unsigned int H_Dot)
+static void gfx_do_line(unsigned int func, unsigned short *stamp_base,
+ unsigned int H_Dot)
{
unsigned int eax, ebx, ecx, edx, esi, edi, pixel;
unsigned int XD, Buffer_Adr;
}
-PICO_INTERNAL void gfx_cd_update(void)
-{
- int V_Dot = _rot_comp.Reg_64 & 0xff;
- int jobs;
-
- dprintf("gfx_cd_update, Reg_64 = %04x", _rot_comp.Reg_64);
-
- if (!V_Dot)
- {
- gfx_completed();
- return;
- }
-
- jobs = _rot_comp.Float_Part >> 16;
-
- if (!jobs)
- {
- _rot_comp.Float_Part += _rot_comp.Draw_Speed;
- return;
- }
-
- _rot_comp.Float_Part &= 0xffff;
- _rot_comp.Float_Part += _rot_comp.Draw_Speed;
-
- if (PicoOpt & POPT_EN_MCD_GFX)
- {
- unsigned int func = _rot_comp.Function;
- unsigned int H_Dot = _rot_comp.Reg_62 & 0x1ff;
- unsigned short *stamp_base = (unsigned short *) (Pico_mcd->word_ram2M + _rot_comp.Stamp_Map_Adr);
-
- while (jobs--)
- {
- gfx_do(func, stamp_base, H_Dot); // jmp [Jmp_Adr]:
-
- V_Dot--; // dec byte [V_Dot]
- if (V_Dot == 0)
- {
- // GFX_Completed:
- gfx_completed();
- return;
- }
- }
- }
- else
- {
- if (jobs >= V_Dot)
- {
- gfx_completed();
- return;
- }
- V_Dot -= jobs;
- }
-
- _rot_comp.Reg_64 = V_Dot;
-}
-
-
-PICO_INTERNAL_ASM unsigned int gfx_cd_read(unsigned int a)
-{
- unsigned int d = 0;
-
- switch (a) {
- case 0x58: d = _rot_comp.Reg_58; break;
- case 0x5A: d = _rot_comp.Reg_5A; break;
- case 0x5C: d = _rot_comp.Reg_5C; break;
- case 0x5E: d = _rot_comp.Reg_5E; break;
- case 0x60: d = _rot_comp.Reg_60; break;
- case 0x62: d = _rot_comp.Reg_62; break;
- case 0x64: d = _rot_comp.Reg_64; break;
- case 0x66: break;
- default: dprintf("gfx_cd_read FIXME: unexpected address: %02x", a); break;
- }
-
- dprintf("gfx_cd_read(%02x) = %04x", a, d);
-
- return d;
-}
-
PICO_INTERNAL_ASM void gfx_cd_write16(unsigned int a, unsigned int d)
{
dprintf("gfx_cd_write16(%x, %04x)", a, d);
+ if (_rot_comp.Reg_58 & 0x8000)
+ elprintf(EL_CD|EL_ANOMALY, "cd: busy gfx reg write %02x %04x", a, d);
+
switch (a) {
case 0x58: // .Reg_Stamp_Size
_rot_comp.Reg_58 = d & 7;
notaz.gp2x.de / picodrive.git / blobdiff