trunk/src/mame/video/namcona1.c
| r29474 | r29475 | |
|---|
| 265 | 265 | } |
| 266 | 266 | } /* namcona1_gfxram_w */ |
| 267 | 267 | |
| 268 | | static void UpdateGfx(running_machine &machine) |
| 269 | | { |
| 270 | | } /* UpdateGfx */ |
| 271 | | |
| 272 | 268 | void namcona1_state::video_start() |
| 273 | 269 | { |
| 274 | 270 | m_roz_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(namcona1_state::roz_get_info),this), TILEMAP_SCAN_ROWS, 8,8,64,64 ); |
| r29474 | r29475 | |
|---|
| 537 | 533 | |
| 538 | 534 | void namcona1_state::draw_background(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int which, int primask ) |
| 539 | 535 | { |
| 540 | | UINT16 *videoram = m_videoram; |
| 541 | | /* scrollx lineselect |
| 542 | | * tmap0 ffe000 ffe200 |
| 543 | | * tmap1 ffe400 ffe600 |
| 544 | | * tmap2 ffe800 ffea00 |
| 545 | | * tmap3 ffec00 ffee00 |
| 546 | | */ |
| 547 | | int xadjust = 0x3a - which*2; |
| 548 | | const UINT16 *scroll = m_scroll+0x200*which; |
| 549 | | int line; |
| 550 | | UINT16 xdata, ydata; |
| 551 | | int scrollx, scrolly; |
| 552 | | rectangle clip; |
| 553 | | const pen_t *paldata; |
| 554 | | gfx_element *pGfx; |
| 555 | | |
| 556 | | pGfx = m_gfxdecode->gfx(0); |
| 557 | | assert(which >= 0 && which < ARRAY_LENGTH(m_tilemap_palette_bank)); |
| 558 | | paldata = &m_palette->pen(pGfx->colorbase() + pGfx->granularity() * m_tilemap_palette_bank[which]); |
| 559 | | |
| 560 | | /* draw one scanline at a time */ |
| 561 | | clip.min_x = cliprect.min_x; |
| 562 | | clip.max_x = cliprect.max_x; |
| 563 | | scrollx = 0; |
| 564 | | scrolly = 0; |
| 565 | | for( line=0; line<256; line++ ) |
| 536 | if(which == NAMCONA1_NUM_TILEMAPS ) |
| 566 | 537 | { |
| 567 | | clip.min_y = line; |
| 568 | | clip.max_y = line; |
| 569 | | xdata = scroll[line]; |
| 570 | | if( xdata ) |
| 571 | | { |
| 572 | | /* screenwise linescroll */ |
| 573 | | scrollx = xadjust+xdata; |
| 574 | | } |
| 575 | | ydata = scroll[line+0x100]; |
| 576 | | if( ydata&0x4000 ) |
| 577 | | { |
| 578 | | /* line select: dword offset from 0xff000 or tilemap source line */ |
| 579 | | scrolly = (ydata - line)&0x1ff; |
| 580 | | } |
| 538 | /* draw roz all at once */ |
| 539 | int incxx = ((INT16)m_vreg[0xc0/2])<<8; |
| 540 | int incxy = ((INT16)m_vreg[0xc2/2])<<8; |
| 541 | int incyx = ((INT16)m_vreg[0xc4/2])<<8; |
| 542 | int incyy = ((INT16)m_vreg[0xc6/2])<<8; |
| 543 | INT16 xoffset = m_vreg[0xc8/2]; |
| 544 | INT16 yoffset = m_vreg[0xca/2]; |
| 545 | int dx = 46; /* horizontal adjust */ |
| 546 | int dy = -8; /* vertical adjust */ |
| 547 | UINT32 startx = (xoffset<<12)+incxx*dx+incyx*dy; |
| 548 | UINT32 starty = (yoffset<<12)+incxy*dx+incyy*dy; |
| 549 | m_roz_tilemap->draw_roz(screen, bitmap, cliprect, |
| 550 | startx, starty, incxx, incxy, incyx, incyy, 0, 0, primask, 0); |
| 551 | } |
| 552 | else |
| 553 | { |
| 554 | /* draw one scanline at a time */ |
| 555 | /* scrollx lineselect |
| 556 | * tmap0 ffe000 ffe200 |
| 557 | * tmap1 ffe400 ffe600 |
| 558 | * tmap2 ffe800 ffea00 |
| 559 | * tmap3 ffec00 ffee00 |
| 560 | */ |
| 561 | const UINT16 *scroll = &m_scroll[which * 0x400/2]; |
| 562 | const pen_t *paldata = &m_palette->pen(m_tilemap_palette_bank[which] * 256); |
| 563 | rectangle clip = cliprect; |
| 564 | int xadjust = 0x3a - which*2; |
| 565 | int scrollx = 0; |
| 566 | int scrolly = 0; |
| 581 | 567 | |
| 582 | | if (line >= cliprect.min_y && line <= cliprect.max_y) |
| 568 | for( int line = 0; line < 256; line++ ) |
| 583 | 569 | { |
| 584 | | if( xdata == 0xc001 ) |
| 570 | clip.min_y = line; |
| 571 | clip.max_y = line; |
| 572 | int xdata = scroll[line]; |
| 573 | int ydata = scroll[line + 0x200/2]; |
| 574 | |
| 575 | if( xdata ) |
| 585 | 576 | { |
| 586 | | /* This is a simplification, but produces the correct behavior for the only game that uses this |
| 587 | | * feature, Numan Athletics. |
| 588 | | */ |
| 589 | | draw_pixel_line( |
| 590 | | &bitmap.pix16(line), |
| 591 | | &screen.priority().pix8(line), |
| 592 | | videoram + ydata + 25, |
| 593 | | paldata ); |
| 577 | /* screenwise linescroll */ |
| 578 | scrollx = xadjust+xdata; |
| 594 | 579 | } |
| 595 | | else |
| 580 | |
| 581 | if( ydata&0x4000 ) |
| 596 | 582 | { |
| 597 | | if(which == NAMCONA1_NUM_TILEMAPS ) |
| 583 | /* line select: dword offset from 0xff000 or tilemap source line */ |
| 584 | scrolly = (ydata - line)&0x1ff; |
| 585 | } |
| 586 | |
| 587 | if (line >= cliprect.min_y && line <= cliprect.max_y) |
| 588 | { |
| 589 | if( xdata == 0xc001 ) |
| 598 | 590 | { |
| 599 | | int incxx = ((INT16)m_vreg[0xc0/2])<<8; |
| 600 | | int incxy = ((INT16)m_vreg[0xc2/2])<<8; |
| 601 | | int incyx = ((INT16)m_vreg[0xc4/2])<<8; |
| 602 | | int incyy = ((INT16)m_vreg[0xc6/2])<<8; |
| 603 | | INT16 xoffset = m_vreg[0xc8/2]; |
| 604 | | INT16 yoffset = m_vreg[0xca/2]; |
| 605 | | int dx = 46; /* horizontal adjust */ |
| 606 | | int dy = -8; /* vertical adjust */ |
| 607 | | UINT32 startx = (xoffset<<12)+incxx*dx+incyx*dy; |
| 608 | | UINT32 starty = (yoffset<<12)+incxy*dx+incyy*dy; |
| 609 | | m_roz_tilemap->draw_roz(screen, bitmap, clip, |
| 610 | | startx, starty, incxx, incxy, incyx, incyy, 0, 0, primask, 0); |
| 591 | /* This is a simplification, but produces the correct behavior for the only game that uses this |
| 592 | * feature, Numan Athletics. |
| 593 | */ |
| 594 | draw_pixel_line(&bitmap.pix16(line), |
| 595 | &screen.priority().pix8(line), |
| 596 | m_videoram + ydata + 25, |
| 597 | paldata ); |
| 611 | 598 | } |
| 612 | 599 | else |
| 613 | 600 | { |
| r29474 | r29475 | |
|---|
| 638 | 625 | } |
| 639 | 626 | m_palette_is_dirty = 0; |
| 640 | 627 | } |
| 641 | | UpdateGfx(machine()); |
| 628 | |
| 642 | 629 | for( which=0; which<NAMCONA1_NUM_TILEMAPS; which++ ) |
| 643 | 630 | { |
| 644 | 631 | int tilemap_color = m_vreg[0xb0/2+(which&3)]&0xf; |