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looking at the road, not quite right

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This commit is contained in:
David Haywood 2013-02-22 18:33:03 +00:00
parent 2c9983b2de
commit ecd9a5b280
1 changed files with 113 additions and 64 deletions
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177
src/mame/drivers/coolridr.c
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@ -613,6 +613,14 @@ WRITE32_MEMBER(coolridr_state::sysh1_ioga_w)
}
#endif
#define DRAW_PIX \
if (pix) \
{ \
{ \
if (!line[drawx]) line[drawx] = clut[pix+0x4000]; \
} \
} \
/* This is a RLE-based sprite blitter (US Patent #6,141,122), very unusual from Sega... */
void coolridr_state::blit_current_sprite(address_space &space)
{
@ -760,7 +768,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
// to be specific, the center line of the road (actual road object? which currently gets shown as a single pixel column?)
// and the horizontal road used in the background of the title screen (which currently looks normal)
// I guess it's some kind of indirect way to do a line effect?
//UINT32 blit10 = m_spriteblit[10];
UINT32 blit10 = m_spriteblit[10];
/************* m_spriteblit[11] *************/
@ -788,16 +796,10 @@ void coolridr_state::blit_current_sprite(address_space &space)
// we also use this to trigger the actual draw operation
if (indirect_zoom_enable)
{
// with this bit enabled blit10 is a look up to the zoom(?) value eg. 03f42600
//UINT32 temp = space.read_dword(blit10);
//PRINT_BLIT_STUFF
/* for the horizontal road during attract there are tables 0x480 bytes long (0x120 dwords) and the value passed points to the start of them */
/* cell sizes for those are are 0011 (v) 0007 (h) with zoom factors of 0020 (half v) 0040 (normal h) */
/* tables seem to be 2x 8-bit values, possibly zoom + linescroll, although ingame ones seem to be 2x16-bit (corrupt? more meaning) */
}
bitmap_rgb32* drawbitmap;
@ -807,9 +809,8 @@ void coolridr_state::blit_current_sprite(address_space &space)
else // 0x90, 0xa0, 0xb0, 0xc0
drawbitmap = &m_temp_bitmap_sprites2;
int sizex = used_hCellCount * 16 * hZoom;
int sizey = used_vCellCount * 16 * vZoom;
hPosition *= 0x40;
vPosition *= 0x40;
switch (vOrigin & 3)
@ -830,23 +831,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
break;
}
switch (hOrigin & 3)
{
case 0:
// left
break;
case 1:
hPosition -= sizex / 2;
// middle?
break;
case 2:
hPosition -= sizex;
// right?
break;
case 3:
// invalid?
break;
}
UINT32 lastSpriteNumber = 0xffffffff;
// Splat some sprites
@ -861,15 +846,59 @@ void coolridr_state::blit_current_sprite(address_space &space)
}
UINT16 hZoomTable[16];
int hPositionTable[16];
for (int idx=0;idx<16;idx++)
{
if (indirect_zoom_enable)
{
UINT32 dword = space.read_dword(blit10);
hZoomTable[idx] = (dword>>16); // add original value?
int linescroll = dword&0xffff;
if (linescroll & 0x8000) linescroll -= 0x10000;
hPositionTable[idx] = linescroll + hPosition;
blit10+=4;
}
else
{
hZoomTable[idx] = hZoom;
hPositionTable[idx] = hPosition;
}
int sizex = used_hCellCount * 16 * hZoomTable[idx];
hPositionTable[idx] *= 0x40;
switch (hOrigin & 3)
{
case 0:
// left
break;
case 1:
hPositionTable[idx] -= sizex / 2;
// middle?
break;
case 2:
hPositionTable[idx] -= sizex;
// right?
break;
case 3:
// invalid?
break;
}
}
for (int h = 0; h < used_hCellCount; h++)
{
const int pixelOffsetX = ((hPosition) + (h* 16 * hZoom)) / 0x40;
if (pixelOffsetX>495)
{
h = used_hCellCount;
continue;
}
int lookupnum;
@ -920,6 +949,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
}
// these should be 'cell numbers' (tile numbers) which look up RLE data?
UINT32 spriteNumber = (m_expanded_10bit_gfx[ (b3romoffset << 3) + (lookupnum<<1) +0 ] << 10) | (m_expanded_10bit_gfx[ (b3romoffset << 3) + (lookupnum<<1) + 1 ]);
UINT16 tempshape[16*16];
@ -980,45 +1010,53 @@ void coolridr_state::blit_current_sprite(address_space &space)
}
if (!hZoom || !vZoom)
if (!vZoom)
{
m_blitterSerialCount++;
return;
}
int blockwide = ((16*hZoom)/0x40);
int blockhigh = ((16*vZoom)/0x40);
UINT32 incx = 0x8000000 / hZoom;
UINT32 incy = 0x8000000 / vZoom;
// DEBUG: Draw 16x16 block
UINT32* line;
if (blit_rotate)
{
if (used_flipy)
{
for (int y = 0; y < blockhigh; y++)
{
int realy = ((y*incy)>>21);
if (!hZoomTable[realy])
continue;
const int pixelOffsetX = ((hPositionTable[realy]) + (h* 16 * hZoomTable[realy])) / 0x40;
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
int blockwide = ((16*hZoomTable[realy])/0x40);
UINT32 incx = 0x8000000 / hZoomTable[realy];
if (used_flipx)
{
for (int x = 0; x < blockwide; x++)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[(15-realx)*16+(15-realy)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
else
@ -1030,8 +1068,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[(15-realx)*16+realy];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
}
@ -1040,10 +1077,16 @@ void coolridr_state::blit_current_sprite(address_space &space)
{
for (int y = 0; y < blockhigh; y++)
{
int realy = ((y*incy)>>21);
if (!hZoomTable[realy])
continue;
const int pixelOffsetX = ((hPositionTable[realy]) + (h* 16 * hZoomTable[realy])) / 0x40;
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
int blockwide = ((16*hZoomTable[realy])/0x40);
UINT32 incx = 0x8000000 / hZoomTable[realy];
if (used_flipx)
{
@ -1054,8 +1097,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[realx*16+(15-realy)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
else
@ -1067,8 +1109,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[realx*16+realy];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
}
@ -1080,10 +1121,16 @@ void coolridr_state::blit_current_sprite(address_space &space)
{
for (int y = 0; y < blockhigh; y++)
{
int realy = ((y*incy)>>21);
if (!hZoomTable[realy])
continue;
const int pixelOffsetX = ((hPositionTable[realy]) + (h* 16 * hZoomTable[realy])) / 0x40;
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
int blockwide = ((16*hZoomTable[realy])/0x40);
UINT32 incx = 0x8000000 / hZoomTable[realy];
if (used_flipx)
{
@ -1094,8 +1141,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[(15-realy)*16+(15-realx)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
else
@ -1106,8 +1152,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[(15-realy)*16+realx];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
}
@ -1116,10 +1161,16 @@ void coolridr_state::blit_current_sprite(address_space &space)
{
for (int y = 0; y < blockhigh; y++)
{
int realy = ((y*incy)>>21);
if (!hZoomTable[realy])
continue;
const int pixelOffsetX = ((hPositionTable[realy]) + (h* 16 * hZoomTable[realy])) / 0x40;
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
int blockwide = ((16*hZoomTable[realy])/0x40);
UINT32 incx = 0x8000000 / hZoomTable[realy];
if (used_flipx)
{
@ -1130,8 +1181,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[realy*16+(15-realx)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
@ -1146,8 +1196,7 @@ void coolridr_state::blit_current_sprite(address_space &space)
int realx = ((x*incx)>>21);
UINT16 pix = tempshape[realy*16+realx];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
DRAW_PIX
}
}
}
@ -1595,7 +1644,7 @@ WRITE32_MEMBER(coolridr_state::sysh1_sound_dma_w)
if(offset == 8)
{
//probably writing to upper word disables m68k, to lower word enables it
machine().device("soundcpu")->execute().set_input_line(INPUT_LINE_RESET, (data) ? ASSERT_LINE : CLEAR_LINE);
m_soundcpu->set_input_line(INPUT_LINE_RESET, (data) ? ASSERT_LINE : CLEAR_LINE);
return;
}
@ -2121,7 +2170,7 @@ UINT16 coolridr_state::get_10bit_data(UINT32 romoffset, int _10bitwordnum)
void coolridr_state::machine_start()
{
// machine().device("maincpu")->execute().set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
// machine().device("soundcpu")->execute().set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
// m_soundcpu->execute().set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
// memcpy(memregion("soundcpu")->base(), memregion("maincpu")->base()+0x100000, 0x80000);
// m_soundcpu->reset();
@ -2158,7 +2207,7 @@ void coolridr_state::machine_start()
void coolridr_state::machine_reset()
{
// machine().device("maincpu")->execute().set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
machine().device("soundcpu")->execute().set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
m_soundcpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
// memcpy(m_soundram, memregion("soundcpu")->base()+0x80000, 0x80000);
// m_soundcpu->reset();
@ -2188,10 +2237,10 @@ static void scsp_irq(device_t *device, int irq)
if (irq > 0)
{
state->m_scsp_last_line = irq;
device->machine().device("soundcpu")->execute().set_input_line(irq, ASSERT_LINE);
state->m_soundcpu->set_input_line(irq, ASSERT_LINE);
}
else
device->machine().device("soundcpu")->execute().set_input_line(-irq, CLEAR_LINE);
state->m_soundcpu->set_input_line(-irq, CLEAR_LINE);
}
WRITE_LINE_MEMBER(coolridr_state::scsp1_to_sh1_irq)