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model2.cpp: fix viewport (nw)

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This commit is contained in:
angelosa 2018-02-07 16:28:02 +01:00
parent 41669be0a1
commit 00eadbc44a
1 changed files with 4 additions and 2 deletions
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6
src/mame/video/model2.cpp
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@ -790,7 +790,9 @@ void model2_renderer::model2_3d_render(triangle *tri, const rectangle &cliprect)
renderer = (tri->texheader[0] >> 13) & 7;
/* calculate and clip to viewport */
rectangle vp(tri->viewport[0] - 8, tri->viewport[2] - 8, (384-tri->viewport[3])+90, (384-tri->viewport[1])+90);
// TODO: correct? seems to be right for all cases
//rectangle vp(tri->viewport[0] - 8, tri->viewport[2] - 8, (384-tri->viewport[3])+90, (384-tri->viewport[1])+90);
rectangle vp(tri->viewport[0] - 8, tri->viewport[2] - tri->viewport[0], tri->viewport[1] - 127, tri->viewport[3] - tri->viewport[1]);
vp &= cliprect;
extra.state = &m_state;
@ -2631,6 +2633,6 @@ uint32_t model2_state::screen_update_model2(screen_device &screen, bitmap_rgb32
tile->draw(screen, m_sys24_bitmap, cliprect, 0, 0, 0);
copybitmap_trans(bitmap, m_sys24_bitmap, 0, 0, 0, 0, cliprect, 0);
return 0;
}