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rungun.cpp: Optimized video code by using separate tilemaps for each screen, nw

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This commit is contained in:
angelosa 2015-12-03 21:22:00 +01:00
parent c31a437f54
commit b575b1ca19
2 changed files with 25 additions and 20 deletions
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4
src/mame/includes/rungun.h
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@ -48,8 +48,8 @@ public:
required_device<screen_device> m_screen;
/* video-related */
tilemap_t *m_ttl_tilemap;
tilemap_t *m_936_tilemap;
tilemap_t *m_ttl_tilemap[2];
tilemap_t *m_936_tilemap[2];
UINT16 *m_psac2_vram;
UINT16 *m_ttl_vram;
UINT16 *m_pal_ram;

41
src/mame/video/rungun.cpp
View File

@ -18,7 +18,8 @@
/* TTL text plane stuff */
TILE_GET_INFO_MEMBER(rungun_state::ttl_get_tile_info)
{
UINT8 *lvram = (UINT8 *)m_ttl_vram + (m_current_display_bank * 0x2000);
UINT32 base_addr = (FPTR)tilemap.user_data();
UINT8 *lvram = (UINT8 *)m_ttl_vram + base_addr;
int attr, code;
attr = (lvram[BYTE_XOR_LE(tile_index<<2)] & 0xf0) >> 4;
@ -40,6 +41,7 @@ READ16_MEMBER(rungun_state::rng_ttl_ram_r)
WRITE16_MEMBER(rungun_state::rng_ttl_ram_w)
{
COMBINE_DATA(&m_ttl_vram[offset+(m_video_mux_bank*0x1000)]);
m_ttl_tilemap[m_video_mux_bank]->mark_tile_dirty(offset / 2);
}
/* 53936 (PSAC2) rotation/zoom plane */
@ -47,17 +49,20 @@ READ16_MEMBER(rungun_state::rng_psac2_videoram_r)
{
return m_psac2_vram[offset+(m_video_mux_bank*0x80000)];
}
/*
//m_ttl_tilemap[m_current_display_bank]->mark_all_dirty();
//m_936_tilemap[m_current_display_bank]->mark_all_dirty();
*/
WRITE16_MEMBER(rungun_state::rng_psac2_videoram_w)
{
COMBINE_DATA(&m_psac2_vram[offset+(m_video_mux_bank*0x80000)]);
//m_936_tilemap->mark_tile_dirty(offset / 2);
m_936_tilemap[m_video_mux_bank]->mark_tile_dirty(offset / 2);
}
TILE_GET_INFO_MEMBER(rungun_state::get_rng_936_tile_info)
{
UINT32 base_addr = (FPTR)tilemap.user_data();
int tileno, colour, flipx;
UINT32 base_addr = (m_current_display_bank * 0x80000);
tileno = m_psac2_vram[tile_index * 2 + 1 + base_addr] & 0x3fff;
flipx = (m_psac2_vram[tile_index * 2 + 1 + base_addr] & 0xc000) >> 14;
@ -84,8 +89,6 @@ void rungun_state::video_start()
m_ttl_vram = auto_alloc_array(machine(), UINT16, 0x1000*2);
m_psac2_vram = auto_alloc_array(machine(), UINT16, 0x80000*2);
m_936_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(rungun_state::get_rng_936_tile_info),this), TILEMAP_SCAN_ROWS, 16, 16, 128, 128);
m_936_tilemap->set_transparent_pen(0);
/* find first empty slot to decode gfx */
for (gfx_index = 0; gfx_index < MAX_GFX_ELEMENTS; gfx_index++)
@ -98,11 +101,18 @@ void rungun_state::video_start()
m_gfxdecode->set_gfx(gfx_index, global_alloc(gfx_element(m_palette, charlayout, memregion("gfx3")->base(), 0, m_palette->entries() / 16, 0)));
m_ttl_gfx_index = gfx_index;
// create the tilemap
m_ttl_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(rungun_state::ttl_get_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 64, 32);
m_ttl_tilemap->set_transparent_pen(0);
// create the tilemaps
for(UINT32 screen_num = 0;screen_num < 2;screen_num++)
{
m_ttl_tilemap[screen_num] = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(rungun_state::ttl_get_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 64, 32);
m_ttl_tilemap[screen_num]->set_user_data((void *)(FPTR)(screen_num * 0x2000));
m_ttl_tilemap[screen_num]->set_transparent_pen(0);
m_936_tilemap[screen_num] = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(rungun_state::get_rng_936_tile_info),this), TILEMAP_SCAN_ROWS, 16, 16, 128, 128);
m_936_tilemap[screen_num]->set_user_data((void *)(FPTR)(screen_num * 0x80000));
m_936_tilemap[screen_num]->set_transparent_pen(0);
}
m_sprite_colorbase = 0x20;
m_screen->register_screen_bitmap(m_rng_dual_demultiplex_left_temp);
@ -114,24 +124,19 @@ UINT32 rungun_state::screen_update_rng(screen_device &screen, bitmap_ind16 &bitm
bitmap.fill(m_palette->black_pen(), cliprect);
screen.priority().fill(0, cliprect);
m_current_display_bank = machine().first_screen()->frame_number() & 1;
{
m_ttl_tilemap->mark_all_dirty();
m_936_tilemap->mark_all_dirty();
}
if(m_video_priority_mode == false)
{
m_k053936->zoom_draw(screen, bitmap, cliprect, m_936_tilemap, 0, 0, 1);
m_k053936->zoom_draw(screen, bitmap, cliprect, m_936_tilemap[m_current_display_bank], 0, 0, 1);
m_k055673->k053247_sprites_draw(bitmap, cliprect);
}
else
{
m_k055673->k053247_sprites_draw(bitmap, cliprect);
m_k053936->zoom_draw(screen, bitmap, cliprect, m_936_tilemap, 0, 0, 1);
m_k053936->zoom_draw(screen, bitmap, cliprect, m_936_tilemap[m_current_display_bank], 0, 0, 1);
}
m_ttl_tilemap->draw(screen, bitmap, cliprect, 0, 0);
m_ttl_tilemap[m_current_display_bank]->draw(screen, bitmap, cliprect, 0, 0);
// copy frame output to temp buffers so we can demultiplex it for the dual screen output
// (really only need to do this for dual setup)