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on behalf of Atari Ace: [patch] Eliminate taitoair view struct

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This commit is contained in:
Fabio Priuli 2010-01-07 22:52:26 +00:00
parent 3b7a8c389c
commit ddcba0be55
3 changed files with 23 additions and 42 deletions
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8
src/mame/drivers/taitoair.c
View File

@ -621,10 +621,6 @@ static MACHINE_START( taitoair )
state->tc0080vco = devtag_get_device(machine, "tc0080vco");
state_save_register_global(machine, state->banknum);
state_save_register_global(machine, state->view.x1);
state_save_register_global(machine, state->view.y1);
state_save_register_global(machine, state->view.x2);
state_save_register_global(machine, state->view.y2);
state_save_register_global(machine, state->q.col);
state_save_register_global(machine, state->q.pcount);
@ -644,10 +640,6 @@ static MACHINE_RESET( taitoair )
state->dsp_hold_signal = ASSERT_LINE;
state->banknum = 0;
state->view.x1 = 0;
state->view.y1 = 0;
state->view.x2 = 0;
state->view.y2 = 0;
for (i = 0; i < TAITOAIR_POLY_MAX_PT; i++)
{

4
src/mame/includes/taitoair.h
View File

@ -27,10 +27,6 @@ struct _taitoair_state
UINT16 * paletteram;
/* video-related */
struct {
int x1, y1, x2, y2;
} view;
taitoair_poly q;
/* misc */

53
src/mame/video/taitoair.c
View File

@ -181,14 +181,12 @@ static void draw_sprites( running_machine *machine, bitmap_t *bitmap, const rect
}
}
static void fill_slope( running_machine *machine, bitmap_t *bitmap, int color, INT32 x1, INT32 x2, INT32 sl1, INT32 sl2, INT32 y1, INT32 y2, INT32 *nx1, INT32 *nx2 )
static void fill_slope( bitmap_t *bitmap, const rectangle *cliprect, int color, INT32 x1, INT32 x2, INT32 sl1, INT32 sl2, INT32 y1, INT32 y2, INT32 *nx1, INT32 *nx2 )
{
taitoair_state *state = (taitoair_state *)machine->driver_data;
if (y1 > state->view.y2)
if (y1 > cliprect->max_y)
return;
if (y2 <= state->view.y1)
if (y2 <= cliprect->min_y)
{
int delta = y2 - y1;
*nx1 = x1 + delta * sl1;
@ -199,15 +197,15 @@ static void fill_slope( running_machine *machine, bitmap_t *bitmap, int color, I
if (y1 < -1000000 || y1 > 1000000)
return;
if (y2 > state->view.y2)
y2 = state->view.y2 + 1;
if (y2 > cliprect->max_y)
y2 = cliprect->max_y + 1;
if (y1 < state->view.y1)
if (y1 < cliprect->min_y)
{
int delta = state->view.y1 - y1;
int delta = cliprect->min_y - y1;
x1 += delta * sl1;
x2 += delta * sl2;
y1 = state->view.y1;
y1 = cliprect->min_y;
}
if (x1 > x2 || (x1==x2 && sl1 > sl2))
@ -226,16 +224,16 @@ static void fill_slope( running_machine *machine, bitmap_t *bitmap, int color, I
while (y1 < y2)
{
if (y1 >= state->view.y1)
if (y1 >= cliprect->min_y)
{
int xx1 = x1 >> TAITOAIR_FRAC_SHIFT;
int xx2 = x2 >> TAITOAIR_FRAC_SHIFT;
if (xx1 <= state->view.x2 || xx2 >= state->view.x1)
if (xx1 <= cliprect->max_x || xx2 >= cliprect->min_x)
{
if (xx1 < state->view.x1)
xx1 = state->view.x1;
if (xx2 > state->view.x2)
xx2 = state->view.x2;
if (xx1 < cliprect->min_x)
xx1 = cliprect->min_x;
if (xx2 > cliprect->max_x)
xx2 = cliprect->max_x;
while (xx1 <= xx2)
{
@ -253,9 +251,8 @@ static void fill_slope( running_machine *machine, bitmap_t *bitmap, int color, I
*nx2 = x2;
}
static void fill_poly( running_machine *machine, bitmap_t *bitmap, const struct taitoair_poly *q )
static void fill_poly( bitmap_t *bitmap, const rectangle *cliprect, const struct taitoair_poly *q )
{
taitoair_state *state = (taitoair_state *)machine->driver_data;
INT32 sl1, sl2, cury, limy, x1, x2;
int pmin, pmax, i, ps1, ps2;
struct taitoair_spoint p[TAITOAIR_POLY_MAX_PT * 2];
@ -283,13 +280,13 @@ static void fill_poly( running_machine *machine, bitmap_t *bitmap, const struct
if (cury == limy)
return;
if (cury > state->view.y2)
if (cury > cliprect->max_y)
return;
if (limy <= state->view.y1)
if (limy <= cliprect->min_y)
return;
if (limy > state->view.y2)
limy = state->view.y2;
if (limy > cliprect->max_y)
limy = cliprect->max_y;
ps1 = pmin + pcount;
ps2 = pmin;
@ -300,7 +297,7 @@ static void fill_poly( running_machine *machine, bitmap_t *bitmap, const struct
{
if (p[ps1 - 1].y == p[ps2 + 1].y)
{
fill_slope(machine, bitmap, color, x1, x2, sl1, sl2, cury, p[ps1 - 1].y, &x1, &x2);
fill_slope(bitmap, cliprect, color, x1, x2, sl1, sl2, cury, p[ps1 - 1].y, &x1, &x2);
cury = p[ps1 - 1].y;
if (cury >= limy)
break;
@ -319,7 +316,7 @@ static void fill_poly( running_machine *machine, bitmap_t *bitmap, const struct
}
else if (p[ps1 - 1].y < p[ps2 + 1].y)
{
fill_slope(machine, bitmap, color, x1, x2, sl1, sl2, cury, p[ps1 - 1].y, &x1, &x2);
fill_slope(bitmap, cliprect, color, x1, x2, sl1, sl2, cury, p[ps1 - 1].y, &x1, &x2);
cury = p[ps1 - 1].y;
if (cury >= limy)
break;
@ -331,7 +328,7 @@ static void fill_poly( running_machine *machine, bitmap_t *bitmap, const struct
}
else
{
fill_slope(machine, bitmap, color, x1, x2, sl1, sl2, cury, p[ps2 + 1].y, &x1, &x2);
fill_slope(bitmap, cliprect, color, x1, x2, sl1, sl2, cury, p[ps2 + 1].y, &x1, &x2);
cury = p[ps2 + 1].y;
if (cury >= limy)
break;
@ -374,10 +371,6 @@ VIDEO_UPDATE( taitoair )
{
int adr = 0x3fff;
// struct taitoair_poly q;
state->view.x1 = cliprect->min_x;
state->view.y1 = cliprect->min_y;
state->view.x2 = cliprect->max_x;
state->view.y2 = cliprect->max_y;
while (adr >= 0 && state->line_ram[adr] && state->line_ram[adr] != 0x4000)
{
@ -399,7 +392,7 @@ VIDEO_UPDATE( taitoair )
}
adr--;
state->q.pcount = pcount;
fill_poly(screen->machine, bitmap, &state->q);
fill_poly(bitmap, cliprect, &state->q);
}
}
return 0;