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author angelosa <salese_corp_ltd@email.it>2017-08-30 20:23:56 +0200
committer angelosa <salese_corp_ltd@email.it>2017-08-30 20:24:25 +0200
commit6af2a1ff60ccda89ae10002776ccaa13e0872a07 (patch)
tree7b1ad366402797c663a7cd407f791a20fc41de64
parenta11923f59861c7417201409f642cddba2700abea (diff)
gstriker.cpp: added rotation to mb60553 core, used by V Goal Soccer during display of football field [Angelo Salese]
-rw-r--r--src/mame/video/mb60553.cpp21
1 files changed, 11 insertions, 10 deletions
diff --git a/src/mame/video/mb60553.cpp b/src/mame/video/mb60553.cpp
index 0fa843d5513..f24c8de2864 100644
--- a/src/mame/video/mb60553.cpp
+++ b/src/mame/video/mb60553.cpp
@@ -270,31 +270,32 @@ void mb60553_zooming_tilemap_device::draw( screen_device &screen, bitmap_ind16&
{
// int scrollx;
// int scrolly;
-
uint32_t startx,starty;
- uint32_t incxx,incyy;
+ int32_t incxx,incyy;
+ int32_t incxy,incyx;
float xoffset;
-
- incxx = m_lineram[(line)*8+0]<<4;
- incyy = m_lineram[(line)*8+3]<<4;
+ // confirmed on how ROZ is used
+ incyy = ((int16_t)m_lineram[(line)*8+0])<<4;
+ incxx = ((int16_t)m_lineram[(line)*8+3])<<4;
// startx has an offset based off current x zoom value
// This is confirmed by Tecmo World Cup '94 startx being 0xff40 (-192) when showing footballer pics on attract mode (incxx is 0x800)
// TODO: slightly offset?
- xoffset = ((float)incxx/(float)0x10000) * 384.0;
+ xoffset = ((float)incyy/(float)0x10000) * 384.0;
- startx = m_regs[0] + (uint32_t)xoffset;
+ startx = m_regs[0] + (int32_t)xoffset;
starty = m_regs[1];
// TODO: what's this? Used by Grand Striker playfield
-// startx -= m_lineram[(line)*8+7]/2;
-
+ incyx = ((int16_t)m_lineram[(line)*8+7])<<4;
+ // V Goal Soccer rotation
+ incxy = ((int16_t)m_lineram[(line)*8+4])<<4;
clip.min_y = clip.max_y = line;
draw_roz_core(screen, bitmap, clip, startx<<12,starty<<12,
- incxx,0,0,incyy,
+ incxx,incxy,-incyx,incyy,
1
);