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Implemented command skipped by previous commit, it's for goraud shaded triangles

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This commit is contained in:
Angelo Salese 2011-08-22 22:16:44 +00:00
parent c0d1aaf1a3
commit 99f925a60f
1 changed files with 26 additions and 2 deletions
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28
src/mame/video/taitojc.c
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@ -679,9 +679,33 @@ void taitojc_render_polygons(running_machine &machine, UINT16 *polygon_fifo, int
ptr += 6; ptr += 6;
break; break;
} }
case 0x01: // Landing Gear case 0x01: // Landing Gear, Goraud Shaded Triangle
{ {
ptr += 12; poly_extra_data *extra = (poly_extra_data *)poly_get_extra_data(state->m_poly);
extra->zbuffer = state->m_zbuffer;
for (i=0; i < 3; i++)
{
vert[i].p[1] = polygon_fifo[ptr++];
vert[i].y = (INT16)(polygon_fifo[ptr++]);
vert[i].x = (INT16)(polygon_fifo[ptr++]);
vert[i].p[0] = (UINT16)(polygon_fifo[ptr++]);
}
if (vert[0].p[0] < 0x8000 && vert[1].p[0] < 0x8000 && vert[2].p[0] < 0x8000)
{
if (vert[0].p[1] == vert[1].p[1] &&
vert[1].p[1] == vert[2].p[1])
{
// optimization: all colours the same -> render solid
poly_render_triangle(state->m_poly, state->m_framebuffer, &machine.primary_screen->visible_area(), render_solid_scan, 2, &vert[0], &vert[1], &vert[2]);
}
else
{
poly_render_triangle(state->m_poly, state->m_framebuffer, &machine.primary_screen->visible_area(), render_shade_scan, 2, &vert[0], &vert[1], &vert[2]);
}
}
break; break;
} }
default: default: