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gt: minor cleaning (nw)

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This commit is contained in:
Patrick Mackinlay 2017-10-23 19:40:40 +07:00
parent 65e84a2ea1
commit a020b82a7d
2 changed files with 41 additions and 37 deletions
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38
src/devices/bus/interpro/sr/gt.cpp
View File

@ -53,25 +53,25 @@ DEFINE_DEVICE_TYPE(MPCB963, mpcb963_device, "mpcb963", "2000 Graphics f/1 1Mp Mo
DEFINE_DEVICE_TYPE(MPCBA79, mpcba79_device, "mpcba79", "2000 Graphics f/2 1Mp Monitors")
/*
* The screen data here is just a guess for now. Real values will need to be
* determined to ensure the cursor positions generated by the Bt459 are
* The raw screen data here is just a guess for now. Real values will need to
* be determined to ensure the cursor positions generated by the Bt459 are
* aligned properly on the screen.
*/
MACHINE_CONFIG_MEMBER(mpcb963_device::device_add_mconfig)
MCFG_SCREEN_ADD("screen0", RASTER)
MCFG_SCREEN_RAW_PARAMS(80'000'000, GT_XRES, 0, GT_XRES, GT_YRES, 0, GT_YRES)
MCFG_SCREEN_RAW_PARAMS(GT_PIXCLOCK, GT_XPIXELS, 0, GT_XPIXELS, GT_YPIXELS, 0, GT_YPIXELS)
MCFG_SCREEN_UPDATE_DEVICE("", mpcb963_device, screen_update0)
MCFG_DEVICE_ADD("ramdac0", BT459, 0)
MACHINE_CONFIG_END
MACHINE_CONFIG_MEMBER(mpcba79_device::device_add_mconfig)
MCFG_SCREEN_ADD("screen0", RASTER)
MCFG_SCREEN_RAW_PARAMS(80'000'000, GT_XRES, 0, GT_XRES, GT_YRES, 0, GT_YRES)
MCFG_SCREEN_RAW_PARAMS(GT_PIXCLOCK, GT_XPIXELS, 0, GT_XPIXELS, GT_YPIXELS, 0, GT_YPIXELS)
MCFG_SCREEN_UPDATE_DEVICE("", mpcba79_device, screen_update0)
MCFG_DEVICE_ADD("ramdac0", BT459, 0)
MCFG_SCREEN_ADD("screen1", RASTER)
MCFG_SCREEN_RAW_PARAMS(80'000'000, GT_XRES, 0, GT_XRES, GT_YRES, 0, GT_YRES)
MCFG_SCREEN_RAW_PARAMS(GT_PIXCLOCK, GT_XPIXELS, 0, GT_XPIXELS, GT_YPIXELS, 0, GT_YPIXELS)
MCFG_SCREEN_UPDATE_DEVICE("", mpcba79_device, screen_update1)
MCFG_DEVICE_ADD("ramdac1", BT459, 0)
MACHINE_CONFIG_END
@ -97,10 +97,10 @@ void mpcb963_device::device_start()
gt_device_base::device_start();
// allocate double-buffered vram
m_screen[0].vram.reset(new u8[GT_VRAM * 2]);
m_screen[0].vram.reset(new u8[GT_VRAM_SIZE]);
save_item(NAME(m_control));
save_pointer(NAME(m_screen[0].vram.get()), GT_VRAM * 2);
save_pointer(NAME(m_screen[0].vram.get()), GT_VRAM_SIZE);
}
@ -118,16 +118,16 @@ READ32_MEMBER(mpcb963_device::vram_r) const
WRITE32_MEMBER(mpcb963_device::vram_w)
{
gt_screen_t &gt_screen = m_screen[(offset >> 19) & 1];
const gt_screen_t &gt_screen = m_screen[(offset >> 19) & 1];
((u32 *)gt_screen.vram.get())[offset & 0x7ffff] = (((u32 *)gt_screen.vram.get())[offset & 0x7ffff] & ~mem_mask) | (data & mem_mask);
}
u32 mpcb963_device::screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
gt_screen_t &gt_screen = m_screen[0];
const gt_screen_t &gt_screen = m_screen[0];
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_VRAM]);
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_BUFFER_SIZE]);
return 0;
}
@ -147,12 +147,12 @@ void mpcba79_device::device_start()
{
gt_device_base::device_start();
m_screen[0].vram.reset(new u8[VRAM_SIZE]);
m_screen[1].vram.reset(new u8[VRAM_SIZE]);
m_screen[0].vram.reset(new u8[GT_VRAM_SIZE]);
m_screen[1].vram.reset(new u8[GT_VRAM_SIZE]);
save_item(NAME(m_control));
save_pointer(NAME(m_screen[0].vram.get()), VRAM_SIZE);
save_pointer(NAME(m_screen[1].vram.get()), VRAM_SIZE);
save_pointer(NAME(m_screen[0].vram.get()), GT_VRAM_SIZE);
save_pointer(NAME(m_screen[1].vram.get()), GT_VRAM_SIZE);
}
WRITE16_MEMBER(mpcba79_device::control_w)
@ -169,25 +169,25 @@ READ32_MEMBER(mpcba79_device::vram_r) const
WRITE32_MEMBER(mpcba79_device::vram_w)
{
gt_screen_t &gt_screen = m_screen[(offset >> 19) & 1];
const gt_screen_t &gt_screen = m_screen[(offset >> 19) & 1];
((u32 *)gt_screen.vram.get())[offset & 0x7ffff] = (((u32 *)gt_screen.vram.get())[offset & 0x7ffff] & ~mem_mask) | (data & mem_mask);
}
u32 mpcba79_device::screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
gt_screen_t &gt_screen = m_screen[0];
const gt_screen_t &gt_screen = m_screen[0];
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_VRAM]);
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_BUFFER_SIZE]);
return 0;
}
u32 mpcba79_device::screen_update1(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
gt_screen_t &gt_screen = m_screen[1];
const gt_screen_t &gt_screen = m_screen[1];
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_VRAM]);
gt_screen.ramdac->screen_update(screen, bitmap, cliprect, &gt_screen.vram[gt_screen.primary ? 0x000000 : GT_BUFFER_SIZE]);
return 0;
}

40
src/devices/bus/interpro/sr/gt.h
View File

@ -14,9 +14,11 @@ protected:
gt_device_base(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
public:
const int GT_XRES = 1184;
const int GT_YRES = 884;
const int GT_VRAM = 0x100000; // 1 megabyte
static const u32 GT_PIXCLOCK = 80'000'000; // just a guess
static const int GT_XPIXELS = 1184;
static const int GT_YPIXELS = 884;
static const int GT_BUFFER_SIZE = 0x100000; // 1 megabyte
static const int GT_VRAM_SIZE = 0x200000; // 1 megabyte double buffered
enum control_mask
{
@ -24,6 +26,12 @@ public:
CONTROL_BUSY = 0x8000
};
virtual DECLARE_READ16_MEMBER(control_r) const = 0;
virtual DECLARE_WRITE16_MEMBER(control_w) = 0;
virtual DECLARE_READ32_MEMBER(vram_r) const = 0;
virtual DECLARE_WRITE32_MEMBER(vram_w) = 0;
protected:
typedef struct
{
required_device<bt459_device> ramdac;
@ -31,12 +39,6 @@ public:
bool primary;
} gt_screen_t;
virtual DECLARE_READ16_MEMBER(control_r) const = 0;
virtual DECLARE_WRITE16_MEMBER(control_w) = 0;
virtual DECLARE_READ32_MEMBER(vram_r) const = 0;
virtual DECLARE_WRITE32_MEMBER(vram_w) = 0;
};
class mpcb963_device : public gt_device_base
@ -44,25 +46,26 @@ class mpcb963_device : public gt_device_base
public:
mpcb963_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
static const int GT_SCREEN_COUNT = 1;
virtual DECLARE_ADDRESS_MAP(map, 32) override;
virtual DECLARE_READ16_MEMBER(control_r) const override { return m_control; }
virtual DECLARE_WRITE16_MEMBER(control_w) override;
virtual DECLARE_READ32_MEMBER(vram_r) const override;
virtual DECLARE_WRITE32_MEMBER(vram_w) override;
u32 screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
protected:
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
u32 screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
private:
u16 m_control;
gt_screen_t m_screen[1];
gt_screen_t m_screen[GT_SCREEN_COUNT];
};
class mpcba79_device : public gt_device_base
@ -70,25 +73,26 @@ class mpcba79_device : public gt_device_base
public:
mpcba79_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
static const int GT_SCREEN_COUNT = 2;
virtual DECLARE_ADDRESS_MAP(map, 32) override;
virtual DECLARE_READ16_MEMBER(control_r) const override { return m_control; }
virtual DECLARE_WRITE16_MEMBER(control_w) override;
virtual DECLARE_READ32_MEMBER(vram_r) const override;
virtual DECLARE_WRITE32_MEMBER(vram_w) override;
u32 screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
u32 screen_update1(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
protected:
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
u32 screen_update0(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
u32 screen_update1(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
private:
u16 m_control;
gt_screen_t m_screen[2];
gt_screen_t m_screen[GT_SCREEN_COUNT];
};
// device type definition