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mpatrol: Improved graphics problems (#4061)

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* Update m52.h

* Update m52.cpp
This commit is contained in:
kunikuni 2018-10-04 22:33:46 +09:00 committed by R. Belmont
parent 6392ecb0fa
commit 844cd2cee9
2 changed files with 68 additions and 49 deletions
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1
src/mame/includes/m52.h
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@ -50,6 +50,7 @@ private:
DECLARE_PALETTE_INIT(m52);
uint32_t screen_update_m52(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect, int xpos, int ypos, int image);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, int initoffs);
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;

116
src/mame/video/m52.cpp
View File

@ -182,7 +182,7 @@ WRITE8_MEMBER(m52_state::m52_scroll_w)
m_bg_tilemap->set_scrollx(0, 255);
m_bg_tilemap->set_scrollx(1, 255);
m_bg_tilemap->set_scrollx(2, 255);
m_bg_tilemap->set_scrollx(3, -data);
m_bg_tilemap->set_scrollx(3, -(data + 1));
}
@ -298,17 +298,17 @@ void m52_state::draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect,
if (flip_screen())
{
xpos = 127 - xpos;
ypos = 255 - ypos - BGHEIGHT;
xpos = 264 - xpos;
ypos = 264 - ypos - BGHEIGHT;
}
xpos += 128;
xpos += 124;
/* this may not be correct */
ypos = ypos + (22 - 8);
ypos += 16;
m_gfxdecode->gfx(image)->transpen(bitmap,cliprect,
m_gfxdecode->gfx(image)->transpen(bitmap,cliprect,
0, 0,
flip_screen(),
flip_screen(),
@ -316,7 +316,7 @@ void m52_state::draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect,
ypos, 0);
m_gfxdecode->gfx(image)->transpen(bitmap,cliprect,
m_gfxdecode->gfx(image)->transpen(bitmap,cliprect,
0, 0,
flip_screen(),
flip_screen(),
@ -342,6 +342,64 @@ void m52_state::draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect,
/*************************************
*
* Sprites rendering
*
*************************************/
void m52_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, int initoffs)
{
int offs;
/* draw the sprites */
for (offs = initoffs; offs >= (initoffs & 0xc0); offs -= 4)
{
int sy = 257 - m_spriteram[offs];
int color = m_spriteram[offs + 1] & 0x3f;
int flipx = m_spriteram[offs + 1] & 0x40;
int flipy = m_spriteram[offs + 1] & 0x80;
int code = m_spriteram[offs + 2];
int sx = m_spriteram[offs + 3];
rectangle clip;
/* sprites from offsets $00-$7F are processed in the upper half of the frame */
/* sprites from offsets $80-$FF are processed in the lower half of the frame */
clip = cliprect;
if (!(offs & 0x80))
clip.min_y = 0, clip.max_y = 127;
else
clip.min_y = 128, clip.max_y = 255;
/* adjust for flipping */
if (flip_screen())
{
int temp = clip.min_y;
clip.min_y = 255 - clip.max_y;
clip.max_y = 255 - temp;
flipx = !flipx;
flipy = !flipy;
sx = 238 - sx;
sy = 282 - sy;
}
sx += 129;
/* in theory anyways; in practice, some of the molecule-looking guys get clipped */
#ifdef SPLIT_SPRITES
sect_rect(&clip, cliprect);
#else
clip = cliprect;
#endif
m_gfxdecode->gfx(1)->transmask(bitmap,clip,
code, color, flipx, flipy, sx, sy,
m_palette->transpen_mask(*m_gfxdecode->gfx(1), color, 512 + 32));
}
}
/*************************************
*
* Video render
@ -371,48 +429,8 @@ uint32_t m52_state::screen_update_m52(screen_device &screen, bitmap_ind16 &bitma
m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
/* draw the sprites */
for (offs = 0xfc; offs >= 0; offs -= 4)
{
int sy = 257 - m_spriteram[offs];
int color = m_spriteram[offs + 1] & 0x3f;
int flipx = m_spriteram[offs + 1] & 0x40;
int flipy = m_spriteram[offs + 1] & 0x80;
int code = m_spriteram[offs + 2];
int sx = m_spriteram[offs + 3];
rectangle clip;
for (offs = 0x3c; offs <= 0xfc; offs += 0x40)
draw_sprites(bitmap, cliprect, offs);
/* sprites from offsets $00-$7F are processed in the upper half of the frame */
/* sprites from offsets $80-$FF are processed in the lower half of the frame */
clip = cliprect;
if (!(offs & 0x80))
clip.min_y = 0, clip.max_y = 127;
else
clip.min_y = 128, clip.max_y = 255;
/* adjust for flipping */
if (flip_screen())
{
int temp = clip.min_y;
clip.min_y = 255 - clip.max_y;
clip.max_y = 255 - temp;
flipx = !flipx;
flipy = !flipy;
sx = 112 - sx;
sy = 257 + 11 - sy;
}
sx += 128;
/* in theory anyways; in practice, some of the molecule-looking guys get clipped */
#ifdef SPLIT_SPRITES
sect_rect(&clip, cliprect);
#else
clip = cliprect;
#endif
m_gfxdecode->gfx(1)->transmask(bitmap,clip,
code, color, flipx, flipy, sx, sy,
m_palette->transpen_mask(*m_gfxdecode->gfx(1), color, 512 + 32));
}
return 0;
}