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(MESS) vii.c: Reduce tagmap lookups (nw)

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This commit is contained in:
Wilbert Pol 2013-02-10 19:06:01 +00:00
parent 2c81cb6f60
commit b8380495a6
1 changed files with 25 additions and 23 deletions
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48
src/mess/drivers/vii.c
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@ -152,6 +152,11 @@ public:
protected:
optional_memory_region m_region_cart;
required_ioport m_io_p1;
void vii_blit(bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT32 xoff, UINT32 yoff, UINT32 attr, UINT32 ctrl, UINT32 bitmap_addr, UINT16 tile);
void vii_blit_page(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 bitmap_addr, UINT16 *regs);
void vii_blit_sprite(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 base_addr);
void vii_blit_sprites(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth);
};
enum
@ -225,10 +230,9 @@ static void vii_set_pixel(vii_state *state, UINT32 offset, UINT16 rgb)
state->m_screen[offset].b = expand_rgb5_to_rgb8(rgb);
}
static void vii_blit(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT32 xoff, UINT32 yoff, UINT32 attr, UINT32 ctrl, UINT32 bitmap_addr, UINT16 tile)
void vii_state::vii_blit(bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT32 xoff, UINT32 yoff, UINT32 attr, UINT32 ctrl, UINT32 bitmap_addr, UINT16 tile)
{
vii_state *state = machine.driver_data<vii_state>();
address_space &space = machine.device("maincpu")->memory().space(AS_PROGRAM);
address_space &space = m_maincpu->space(AS_PROGRAM);
UINT32 h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
UINT32 w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
@ -272,21 +276,21 @@ static void vii_blit(running_machine &machine, bitmap_rgb32 &bitmap, const recta
if((ctrl & 0x0010) && yy < 240)
{
xx = (xx - (INT16)state->m_p_rowscroll[yy]) & 0x01ff;
xx = (xx - (INT16)m_p_rowscroll[yy]) & 0x01ff;
}
if(xx < 320 && yy < 240)
{
UINT16 rgb = state->m_p_palette[pal];
UINT16 rgb = m_p_palette[pal];
if(!(rgb & 0x8000))
{
if (attr & 0x4000)
{
vii_mix_pixel(state, xx + 320*yy, rgb);
vii_mix_pixel(this, xx + 320*yy, rgb);
}
else
{
vii_set_pixel(state, xx + 320*yy, rgb);
vii_set_pixel(this, xx + 320*yy, rgb);
}
}
}
@ -294,7 +298,7 @@ static void vii_blit(running_machine &machine, bitmap_rgb32 &bitmap, const recta
}
}
static void vii_blit_page(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 bitmap_addr, UINT16 *regs)
void vii_state::vii_blit_page(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 bitmap_addr, UINT16 *regs)
{
UINT32 x0, y0;
UINT32 xscroll = regs[0];
@ -304,7 +308,7 @@ static void vii_blit_page(running_machine &machine, bitmap_rgb32 &bitmap, const
UINT32 tilemap = regs[4];
UINT32 palette_map = regs[5];
UINT32 h, w, hn, wn;
address_space &space = machine.device("maincpu")->memory().space(AS_PROGRAM);
address_space &space = m_maincpu->space(AS_PROGRAM);
if(!(ctrl & PAGE_ENABLE_MASK))
{
@ -358,19 +362,18 @@ static void vii_blit_page(running_machine &machine, bitmap_rgb32 &bitmap, const
yy = ((h*y0 - yscroll + 0x10) & 0xff) - 0x10;
xx = (w*x0 - xscroll) & 0x1ff;
vii_blit(machine, bitmap, cliprect, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
vii_blit(bitmap, cliprect, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
}
}
}
static void vii_blit_sprite(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 base_addr)
void vii_state::vii_blit_sprite(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth, UINT32 base_addr)
{
vii_state *state = machine.driver_data<vii_state>();
address_space &space = machine.device("maincpu")->memory().space(AS_PROGRAM);
address_space &space = m_maincpu->space(AS_PROGRAM);
UINT16 tile, attr;
INT16 x, y;
UINT32 h, w;
UINT32 bitmap_addr = 0x40 * state->m_video_regs[0x22];
UINT32 bitmap_addr = 0x40 * m_video_regs[0x22];
tile = space.read_word((base_addr + 0) << 1);
x = space.read_word((base_addr + 1) << 1);
@ -387,7 +390,7 @@ static void vii_blit_sprite(running_machine &machine, bitmap_rgb32 &bitmap, cons
return;
}
if(state->m_centered_coordinates)
if(m_centered_coordinates)
{
x = 160 + x;
y = 120 - y;
@ -402,15 +405,14 @@ static void vii_blit_sprite(running_machine &machine, bitmap_rgb32 &bitmap, cons
x &= 0x01ff;
y &= 0x01ff;
vii_blit(machine, bitmap, cliprect, x, y, attr, 0, bitmap_addr, tile);
vii_blit(bitmap, cliprect, x, y, attr, 0, bitmap_addr, tile);
}
static void vii_blit_sprites(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth)
void vii_state::vii_blit_sprites(bitmap_rgb32 &bitmap, const rectangle &cliprect, int depth)
{
vii_state *state = machine.driver_data<vii_state>();
UINT32 n;
if (!(state->m_video_regs[0x42] & 1))
if (!(m_video_regs[0x42] & 1))
{
return;
}
@ -419,7 +421,7 @@ static void vii_blit_sprites(running_machine &machine, bitmap_rgb32 &bitmap, con
{
//if(space.read_word((0x2c00 + 4*n) << 1))
{
vii_blit_sprite(machine, bitmap, cliprect, depth, 0x2c00 + 4*n);
vii_blit_sprite(bitmap, cliprect, depth, 0x2c00 + 4*n);
}
}
}
@ -434,9 +436,9 @@ UINT32 vii_state::screen_update_vii(screen_device &screen, bitmap_rgb32 &bitmap,
for(i = 0; i < 4; i++)
{
vii_blit_page(machine(), bitmap, cliprect, i, 0x40 * m_video_regs[0x20], m_video_regs + 0x10);
vii_blit_page(machine(), bitmap, cliprect, i, 0x40 * m_video_regs[0x21], m_video_regs + 0x16);
vii_blit_sprites(machine(), bitmap, cliprect, i);
vii_blit_page(bitmap, cliprect, i, 0x40 * m_video_regs[0x20], m_video_regs + 0x10);
vii_blit_page(bitmap, cliprect, i, 0x40 * m_video_regs[0x21], m_video_regs + 0x16);
vii_blit_sprites(bitmap, cliprect, i);
}
for(y = 0; y < 240; y++)