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pc_vga: add palette configuration to save state

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This commit is contained in:
Scott Percival 2017-03-12 13:41:47 +08:00
parent f6f689d3d2
commit 1e5fda70b7
2 changed files with 21 additions and 14 deletions
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32
src/devices/video/pc_vga.cpp
View File

@ -335,6 +335,14 @@ void vga_device::device_start()
save_item(NAME(vga.attribute.pel_shift)); save_item(NAME(vga.attribute.pel_shift));
save_item(NAME(vga.attribute.pel_shift_latch)); save_item(NAME(vga.attribute.pel_shift_latch));
save_item(NAME(vga.dac.read_index));
save_item(NAME(vga.dac.write_index));
save_item(NAME(vga.dac.mask));
save_item(NAME(vga.dac.read));
save_item(NAME(vga.dac.state));
save_item(NAME(vga.dac.color));
save_item(NAME(vga.dac.dirty));
m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(vga_device::vblank_timer_cb),this)); m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(vga_device::vblank_timer_cb),this));
} }
@ -924,9 +932,9 @@ uint8_t vga_device::pc_vga_choosevideomode()
for (i=0; i<256;i++) for (i=0; i<256;i++)
{ {
/* TODO: color shifters? */ /* TODO: color shifters? */
m_palette->set_pen_color(i, (vga.dac.color[i & vga.dac.mask].red & 0x3f) << 2, m_palette->set_pen_color(i, (vga.dac.color[3*(i & vga.dac.mask)] & 0x3f) << 2,
(vga.dac.color[i & vga.dac.mask].green & 0x3f) << 2, (vga.dac.color[3*(i & vga.dac.mask) + 1] & 0x3f) << 2,
(vga.dac.color[i & vga.dac.mask].blue & 0x3f) << 2); (vga.dac.color[3*(i & vga.dac.mask) + 2] & 0x3f) << 2);
} }
vga.dac.dirty = 0; vga.dac.dirty = 0;
} }
@ -985,9 +993,9 @@ uint8_t svga_device::pc_vga_choosevideomode()
for (i=0; i<256;i++) for (i=0; i<256;i++)
{ {
/* TODO: color shifters? */ /* TODO: color shifters? */
m_palette->set_pen_color(i, (vga.dac.color[i & vga.dac.mask].red & 0x3f) << 2, m_palette->set_pen_color(i, (vga.dac.color[3*(i & vga.dac.mask)] & 0x3f) << 2,
(vga.dac.color[i & vga.dac.mask].green & 0x3f) << 2, (vga.dac.color[3*(i & vga.dac.mask) + 1] & 0x3f) << 2,
(vga.dac.color[i & vga.dac.mask].blue & 0x3f) << 2); (vga.dac.color[3*(i & vga.dac.mask) + 2] & 0x3f) << 2);
} }
vga.dac.dirty = 0; vga.dac.dirty = 0;
} }
@ -1802,13 +1810,13 @@ READ8_MEMBER(vga_device::port_03c0_r)
switch (vga.dac.state++) switch (vga.dac.state++)
{ {
case 0: case 0:
data = vga.dac.color[vga.dac.read_index].red; data = vga.dac.color[3*vga.dac.read_index];
break; break;
case 1: case 1:
data = vga.dac.color[vga.dac.read_index].green; data = vga.dac.color[3*vga.dac.read_index + 1];
break; break;
case 2: case 2:
data = vga.dac.color[vga.dac.read_index].blue; data = vga.dac.color[3*vga.dac.read_index + 2];
break; break;
} }
@ -1990,13 +1998,13 @@ WRITE8_MEMBER(vga_device::port_03c0_w)
{ {
switch (vga.dac.state++) { switch (vga.dac.state++) {
case 0: case 0:
vga.dac.color[vga.dac.write_index].red=data; vga.dac.color[3*vga.dac.write_index]=data;
break; break;
case 1: case 1:
vga.dac.color[vga.dac.write_index].green=data; vga.dac.color[3*vga.dac.write_index + 1]=data;
break; break;
case 2: case 2:
vga.dac.color[vga.dac.write_index].blue=data; vga.dac.color[3*vga.dac.write_index + 2]=data;
break; break;
} }
vga.dac.dirty=1; vga.dac.dirty=1;

3
src/devices/video/pc_vga.h
View File

@ -215,12 +215,11 @@ protected:
uint8_t pel_shift_latch; uint8_t pel_shift_latch;
} attribute; } attribute;
struct { struct {
uint8_t read_index, write_index, mask; uint8_t read_index, write_index, mask;
int read; int read;
int state; int state;
struct { uint8_t red, green, blue; } color[0x100]; uint8_t color[0x300]; /* flat RGB triplets */
int dirty; int dirty;
} dac; } dac;