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pmac6100: fix boot video [R. Belmont]

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This commit is contained in:
arbee 2021-02-25 20:15:50 -05:00
parent 5df0d9a59c
commit bca7fead9f
3 changed files with 34 additions and 2 deletions
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4
src/mame/drivers/mac.cpp
View File

@ -646,7 +646,7 @@ void mac_state::maciifx_map(address_map &map)
void mac_state::pwrmac_map(address_map &map)
{
map(0x00000000, 0x007fffff).ram(); // 8 MB standard
map(0x00000000, 0x007fffff).ram().share("vram64"); // 8 MB standard
map(0x40000000, 0x403fffff).rom().region("bootrom", 0).mirror(0x0fc00000);
@ -1244,7 +1244,7 @@ void mac_state::pwrmac(machine_config &config)
m_screen->set_video_attributes(VIDEO_UPDATE_BEFORE_VBLANK);
m_screen->set_size(1024, 768);
m_screen->set_visarea(0, 640-1, 0, 480-1);
m_screen->set_screen_update(FUNC(mac_state::screen_update_macrbv));
m_screen->set_screen_update(FUNC(mac_state::screen_update_pwrmac));
PALETTE(config, m_palette).set_entries(256);

3
src/mame/includes/mac.h
View File

@ -81,6 +81,7 @@ public:
m_main_buffer(true),
m_vram(*this,"vram"),
m_vram16(*this,"vram16"),
m_vram64(*this,"vram64"),
m_via2_ca1_hack(0),
m_screen(*this, "screen"),
m_palette(*this, "palette")
@ -291,6 +292,7 @@ private:
// this is shared among all video setups with vram
optional_shared_ptr<uint32_t> m_vram;
optional_shared_ptr<uint16_t> m_vram16;
optional_shared_ptr<uint64_t> m_vram64;
// interrupts
int m_scc_interrupt, m_via_interrupt, m_via2_interrupt, m_scsi_interrupt, m_asc_interrupt, m_last_taken_interrupt;
@ -415,6 +417,7 @@ private:
uint32_t screen_update_mac(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_macse30(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_macrbv(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t screen_update_pwrmac(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t screen_update_macrbvvram(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t screen_update_macv8(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t screen_update_macsonora(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);

29
src/mame/video/mac.cpp
View File

@ -367,6 +367,35 @@ uint32_t mac_state::screen_update_macrbv(screen_device &screen, bitmap_rgb32 &bi
return 0;
}
uint32_t mac_state::screen_update_pwrmac(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
uint8_t const *const vram8 = (uint8_t *)m_vram64.target();
int hres, vres;
hres = 640;
vres = 480;
for (int y = 0; y < vres; y++)
{
uint32_t *scanline = &bitmap.pix(y);
for (int x = 0; x < hres; x += 8)
{
uint8_t const pixels = vram8[(y * (hres / 8)) + ((x / 8) ^ 3)];
*scanline++ = m_rbv_palette[0x7f | (pixels & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 1) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 2) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 3) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 4) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 5) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 6) & 0x80)];
*scanline++ = m_rbv_palette[0x7f | ((pixels << 7) & 0x80)];
}
}
return 0;
}
uint32_t mac_state::screen_update_macrbvvram(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
int hres, vres;