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gfx_cd finished, bugfixes

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@76 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-03-22 23:14:43 +00:00
parent 528ec9568f
commit 00bd648e63
6 changed files with 56 additions and 40 deletions
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69
Pico/cd/gfx_cd.c
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@ -79,18 +79,14 @@ static void gfx_completed(void)
}
static void gfx_do(void)
static void gfx_do(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, H_Dot;
unsigned int func = rot_comp.Function;
unsigned short *stamp_base;
unsigned int XD, Buffer_Adr;
int DYXS;
XD = rot_comp.Reg_60 & 7;
Buffer_Adr = ((rot_comp.Reg_5E & 0xfff8) + rot_comp.YD) << 2;
stamp_base = (unsigned short *) (Pico_mcd->word_ram2M + rot_comp.Stamp_Map_Adr);
H_Dot = rot_comp.Reg_62 & 0x1ff;
ecx = *(unsigned int *)(Pico_mcd->word_ram2M + rot_comp.Vector_Adr);
edx = ecx >> 16;
ecx = (ecx & 0xffff) << 8;
@ -105,29 +101,28 @@ static void gfx_do(void)
{
if (func & 4) // 16x16 screen
{
eax = (ecx >> (11+5)) & 0x007f;
ebx = (edx >> (11-2)) & 0x3f80;
ebx = ((ecx >> (11+5)) & 0x007f) |
((edx >> (11-2)) & 0x3f80);
}
else // 1x1 screen
{
eax = (ecx >> (11+5)) & 0x07;
ebx = (edx >> (11+2)) & 0x38;
ebx = ((ecx >> (11+5)) & 0x07) |
((edx >> (11+2)) & 0x38);
}
}
else // mode 16x16 dot
{
if (func & 4) // 16x16 screen
{
eax = (ecx >> (11+4)) & 0x00ff;
ebx = (edx >> (11-4)) & 0xff00;
ebx = ((ecx >> (11+4)) & 0x00ff) |
((edx >> (11-4)) & 0xff00);
}
else // 1x1 screen
{
eax = (ecx >> (11+4)) & 0x0f;
ebx = (edx >> (11+0)) & 0xf0;
ebx = ((ecx >> (11+4)) & 0x0f) |
((edx >> (11+0)) & 0xf0);
}
}
ebx += eax;
// MAKE_IMAGE_PIXEL
if (!(func & 1)) // NOT TILED
@ -141,12 +136,10 @@ static void gfx_do(void)
}
}
// esi = rot_comp.Stamp_Map_Adr;
edi = stamp_base[ebx] | (stamp_base[ebx+1] << 16);
esi = edi;
edi >>= (11+1);
esi = (esi & 0x7ff) << 7;
edi = stamp_base[ebx];// | (stamp_base[ebx+1] << 16);
esi = (edi & 0x7ff) << 7;
if (!esi) { pixel = 0; goto Pixel_Out; }
edi >>= (11+1);
edi &= (0x1c>>1);
eax = ecx;
ebx = edx;
@ -285,7 +278,7 @@ Next_Pixel:
// end while
//nothing_to_draw:
// nothing_to_draw:
rot_comp.YD++;
// rot_comp.V_Dot--; // will be done by caller
}
@ -293,12 +286,12 @@ Next_Pixel:
void gfx_cd_update(void)
{
unsigned char *V_Dot = (unsigned char *) &rot_comp.Reg_64;
int V_Dot = rot_comp.Reg_64 & 0xff;
int jobs;
dprintf("gfx_cd_update, Reg_64 = %04x", rot_comp.Reg_64);
if (!*V_Dot)
if (!V_Dot)
{
gfx_completed();
return;
@ -315,20 +308,36 @@ void gfx_cd_update(void)
rot_comp.Float_Part &= 0xffff;
rot_comp.Float_Part += rot_comp.Draw_Speed;
while (jobs--)
if (PicoOpt & 0x1000) // scale/rot enabled
{
if (PicoOpt & 0x1000)
gfx_do(); // jmp [Jmp_Adr]:
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);
(*V_Dot)--; // dec byte [V_Dot]
if (!*V_Dot)
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:
gfx_completed();
return;
}
V_Dot -= jobs;
}
rot_comp.Reg_64 = V_Dot;
}