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Supported the 1555 fb format in the Naomi driver, needed by Cleopatra Fortune Plus [David Haywood]

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This commit is contained in:
Angelo Salese 2010-04-15 14:29:53 +00:00
parent 491a855ff9
commit 678b65661f
1 changed files with 113 additions and 25 deletions
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138
src/mame/video/dc.c
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@ -1969,6 +1969,10 @@ static void pvr_accumulationbuffer_to_framebuffer(const address_space *space, in
switch (packmode)
{
case 0x00:
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x (0555 KRGB)\n",x,y,packmode);
break;
case 0x01: //565 RGB 16 bit
{
int xcnt,ycnt;
@ -1980,7 +1984,7 @@ static void pvr_accumulationbuffer_to_framebuffer(const address_space *space, in
for (xcnt=0;xcnt<32;xcnt++)
{
// data is 8888 format
// data starts in 8888 format, downsample it
UINT32 data = src[xcnt];
UINT16 newdat = ((((data & 0x000000f8) >> 3)) << 0) |
((((data & 0x0000fc00) >> 10)) << 5) |
@ -1992,6 +1996,42 @@ static void pvr_accumulationbuffer_to_framebuffer(const address_space *space, in
}
break;
case 0x02:
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x (4444 ARGB)\n",x,y,packmode);
break;
case 0x03: // 1555 ARGB 16 bit
{
int xcnt,ycnt;
for (ycnt=0;ycnt<32;ycnt++)
{
UINT32 realwriteoffs = 0x05000000 + writeoffs + (y+ycnt) * (stride<<3) + (x*2);
src = BITMAP_ADDR32(fake_accumulationbuffer_bitmap, y+ycnt, x);
for (xcnt=0;xcnt<32;xcnt++)
{
// data starts in 8888 format, downsample it
UINT32 data = src[xcnt];
UINT16 newdat = ((((data & 0x000000f8) >> 3)) << 0) |
((((data & 0x0000f800) >> 11)) << 5) |
((((data & 0x00f80000) >> 19)) << 10);
// alpha?
memory_write_word(space,realwriteoffs+xcnt*2, newdat);
}
}
}
break;
case 0x04:
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x (888 RGB 24-bit)\n",x,y,packmode);
break;
case 0x05:
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x (0888 KGB 32-bit)\n",x,y,packmode);
break;
case 0x06: // 8888 ARGB 32 bit (HACK! should not downconvert and pvr_drawframebuffer should change accordingly)
{
int xcnt,ycnt;
@ -2015,17 +2055,9 @@ static void pvr_accumulationbuffer_to_framebuffer(const address_space *space, in
}
break;
case 0x00:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x07:
default:
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x\n",x,y,packmode);
printf("pvr_accumulationbuffer_to_framebuffer buffer to tile at %d,%d - unsupported pack mode %02x (Reserved! Don't Use!)\n",x,y,packmode);
break;
}
@ -2040,29 +2072,85 @@ static void pvr_drawframebuffer(bitmap_t *bitmap,const rectangle *cliprect)
UINT32 c;
UINT32 r,g,b;
UINT32 wc = pvrta_regs[FB_R_CTRL];
UINT8 unpackmode = (wc & 0x0000000c) >>2; // aka fb_depth
UINT8 enable = (wc & 0x00000001);
// ??
if (!enable) return;
// only for rgb565 framebuffer
xi=((pvrta_regs[FB_R_SIZE] & 0x3ff)+1) << 1;
dy=((pvrta_regs[FB_R_SIZE] >> 10) & 0x3ff)+1;
// dy++;
dy*=2; // probably depends on interlace mode, fields etc...
for (y=0;y < dy;y++)
switch (unpackmode)
{
addrp=pvrta_regs[FB_R_SOF1]+y*xi*2;
for (x=0;x < xi;x++)
{
fbaddr=BITMAP_ADDR32(bitmap,y,x);
c=*(((UINT16 *)dc_framebuffer_ram) + (WORD2_XOR_LE(addrp) >> 1));
case 0x00: // 0555 RGB 16-bit
// should upsample back to 8-bit output using fb_concat
for (y=0;y < dy;y++)
{
addrp=pvrta_regs[FB_R_SOF1]+y*xi*2;
for (x=0;x < xi;x++)
{
fbaddr=BITMAP_ADDR32(bitmap,y,x);
c=*(((UINT16 *)dc_framebuffer_ram) + (WORD2_XOR_LE(addrp) >> 1));
b = (c & 0x001f) << 3;
g = (c & 0x07e0) >> 3;
r = (c & 0xf800) >> 8;
b = (c & 0x001f) << 3;
g = (c & 0x03e0) >> 2;
r = (c & 0x7c00) >> 7;
if (y<cliprect->max_y)
*fbaddr = b | (g<<8) | (r<<16);
addrp+=2;
}
if (y<=cliprect->max_y)
*fbaddr = b | (g<<8) | (r<<16);
addrp+=2;
}
}
break;
case 0x01: // 0565 RGB 16-bit
// should upsample back to 8-bit output using fb_concat
for (y=0;y < dy;y++)
{
addrp=pvrta_regs[FB_R_SOF1]+y*xi*2;
for (x=0;x < xi;x++)
{
fbaddr=BITMAP_ADDR32(bitmap,y,x);
c=*(((UINT16 *)dc_framebuffer_ram) + (WORD2_XOR_LE(addrp) >> 1));
b = (c & 0x001f) << 3;
g = (c & 0x07e0) >> 3;
r = (c & 0xf800) >> 8;
if (y<=cliprect->max_y)
*fbaddr = b | (g<<8) | (r<<16);
addrp+=2;
}
}
break;
case 0x02: break; // 888 RGB 24-bit (not seen)
case 0x03: // 0888 ARGB 32-bit - HACKED, see pvr_accumulationbuffer_to_framebuffer!
for (y=0;y < dy;y++)
{
addrp=pvrta_regs[FB_R_SOF1]+y*xi*2;
for (x=0;x < xi;x++)
{
fbaddr=BITMAP_ADDR32(bitmap,y,x);
c=*(((UINT16 *)dc_framebuffer_ram) + (WORD2_XOR_LE(addrp) >> 1));
b = (c & 0x001f) << 3;
g = (c & 0x07e0) >> 3;
r = (c & 0xf800) >> 8;
if (y<=cliprect->max_y)
*fbaddr = b | (g<<8) | (r<<16);
addrp+=2;
}
}
break;
}
}