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flower.cpp: sprite shrink feature, flip screen, stuff (nw)

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This commit is contained in:
angelosa 2017-11-03 21:18:04 +01:00
parent 50303ceacb
commit f30457c76e
1 changed files with 46 additions and 21 deletions
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67
src/mame/drivers/flower.cpp
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@ -96,6 +96,7 @@ public:
m_mastercpu(*this, "mastercpu"),
m_slavecpu(*this, "slavecpu"),
m_audiocpu(*this, "audiocpu"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_gfxdecode(*this, "gfxdecode"),
m_txvram(*this, "txvram"),
@ -127,6 +128,7 @@ private:
required_device<cpu_device> m_mastercpu;
required_device<cpu_device> m_slavecpu;
required_device<cpu_device> m_audiocpu;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_device<gfxdecode_device> m_gfxdecode;
required_shared_ptr<uint8_t> m_txvram;
@ -136,20 +138,24 @@ private:
required_shared_ptr<uint8_t> m_bgscroll;
required_shared_ptr<uint8_t> m_fgscroll;
required_device<generic_latch_8_device> m_soundlatch;
void legacy_tx_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
void legacy_layers_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
void sprites_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
bitmap_ind16 m_temp_bitmap;
void draw_legacy_text(bitmap_ind16 &bitmap,const rectangle &cliprect);
void draw_legacy_layers(bitmap_ind16 &bitmap,const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect);
bool m_audio_nmi_enable;
bool m_flip_screen;
};
void flower_state::video_start()
{
// ...
m_screen->register_screen_bitmap(m_temp_bitmap);
save_item(NAME(m_flip_screen));
}
void flower_state::legacy_tx_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
void flower_state::draw_legacy_text(bitmap_ind16 &bitmap,const rectangle &cliprect)
{
gfx_element *gfx_0 = m_gfxdecode->gfx(0);
int count;
@ -184,7 +190,7 @@ void flower_state::legacy_tx_draw(bitmap_ind16 &bitmap,const rectangle &cliprect
}
void flower_state::legacy_layers_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
void flower_state::draw_legacy_layers(bitmap_ind16 &bitmap,const rectangle &cliprect)
{
gfx_element *gfx_1 = m_gfxdecode->gfx(1);
int bg_ybase = m_bgscroll[0];
@ -202,7 +208,7 @@ void flower_state::legacy_layers_draw(bitmap_ind16 &bitmap,const rectangle &clip
if(attr & 0xf) // debug
attr = machine().rand() & 0xf0;
gfx_1->opaque(bitmap,cliprect, tile, attr >> 4, 0, 0, x*16, (y*16 - bg_ybase) & 0xff);
gfx_1->opaque(bitmap, cliprect, tile, attr >> 4, 0, 0, x*16, (y*16 - bg_ybase) & 0xff);
}
@ -230,12 +236,13 @@ void flower_state::legacy_layers_draw(bitmap_ind16 &bitmap,const rectangle &clip
[5] XXXX XXXX X offset MSB
[6] cccc ---- color base
*/
void flower_state::sprites_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
void flower_state::draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect)
{
uint8_t *spr_ptr = &m_workram[0x1e08];
gfx_element *gfx_2 = m_gfxdecode->gfx(2);
for(int i=0;i<0x1fb;i+=8)
// traverse from top to bottom
for(int i=0x1f0;i>=0;i-=8)
{
uint8_t tile = (spr_ptr[i+1] & 0x3f);
uint8_t color = spr_ptr[i+6] >> 4;
@ -246,23 +253,39 @@ void flower_state::sprites_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
uint8_t fx = spr_ptr[i+1] & 0x40;
uint8_t ysize = ((spr_ptr[i+3] & 0x80) >> 7) + 1;
uint8_t xsize = ((spr_ptr[i+3] & 0x08) >> 3) + 1;
uint32_t yshrink_zoom = ((spr_ptr[i+3] & 0x70) >> 4) + 1;
uint32_t xshrink_zoom = ((spr_ptr[i+3] & 0x07) >> 0) + 1;
yshrink_zoom <<= 13;
xshrink_zoom <<= 13;
int ypixels = (yshrink_zoom*16) >> 16;
int xpixels = (xshrink_zoom*16) >> 16;
tile |= (attr & 1) << 6;
tile |= (attr & 8) << 4;
if(flip_screen())
{
x += xsize*16;
x = 256-x;
y -= 2;
}
if(ysize == 2)
y-=16;
tile |= (attr & 1) << 6;
tile |= (attr & 8) << 4;
// TODO: zoom
for(int yi=0;yi<ysize;yi++)
{
int yoffs = (16-ypixels)/2;
for(int xi=0;xi<xsize;xi++)
{
int tile_offs;
int xoffs = (16-xpixels)/2;
tile_offs = fx ? (xsize-xi-1) * 8 : xi*8;
tile_offs+= fy ? (ysize-yi-1) : yi;
gfx_2->transpen(bitmap,cliprect, tile+tile_offs, color, fx, fy, x+xi*16, y+yi*16, 15);
gfx_2->zoom_transpen(bitmap,cliprect, tile+tile_offs, color, fx, fy, x+xi*xpixels+xoffs, y+yi*ypixels+yoffs, xshrink_zoom, yshrink_zoom, 15);
}
}
}
@ -270,16 +293,18 @@ void flower_state::sprites_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
uint32_t flower_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect )
{
bitmap.fill(0,cliprect);
legacy_layers_draw(bitmap,cliprect);
sprites_draw(bitmap,cliprect);
legacy_tx_draw(bitmap,cliprect);
m_temp_bitmap.fill(0,cliprect);
draw_legacy_layers(m_temp_bitmap,cliprect);
draw_sprites(m_temp_bitmap,cliprect);
draw_legacy_text(m_temp_bitmap,cliprect);
copybitmap(bitmap,m_temp_bitmap,m_flip_screen,m_flip_screen,m_flip_screen == true ? -170 : 0, m_flip_screen == true ? -7 : 0, cliprect);
return 0;
}
WRITE8_MEMBER(flower_state::flipscreen_w)
{
flip_screen_set(data & 1);
m_flip_screen = BIT(data,0);
}
WRITE8_MEMBER(flower_state::coin_counter_w)