146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
|
|
* NeXT Cube/Station Framebuffer Emulation
|
|
*
|
|
* Copyright (c) 2011 Bryce Lanham
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "ui/console.h"
|
|
#include "hw/hw.h"
|
|
#include "hw/boards.h"
|
|
#include "hw/loader.h"
|
|
#include "framebuffer.h"
|
|
#include "ui/pixel_ops.h"
|
|
#include "hw/m68k/next-cube.h"
|
|
|
|
#define NEXTFB(obj) OBJECT_CHECK(NeXTFbState, (obj), TYPE_NEXTFB)
|
|
|
|
struct NeXTFbState {
|
|
SysBusDevice parent_obj;
|
|
|
|
MemoryRegion fb_mr;
|
|
MemoryRegionSection fbsection;
|
|
QemuConsole *con;
|
|
|
|
uint32_t cols;
|
|
uint32_t rows;
|
|
int invalidate;
|
|
};
|
|
typedef struct NeXTFbState NeXTFbState;
|
|
|
|
static void nextfb_draw_line(void *opaque, uint8_t *d, const uint8_t *s,
|
|
int width, int pitch)
|
|
{
|
|
NeXTFbState *nfbstate = NEXTFB(opaque);
|
|
static const uint32_t pal[4] = {
|
|
0xFFFFFFFF, 0xFFAAAAAA, 0xFF555555, 0xFF000000
|
|
};
|
|
uint32_t *buf = (uint32_t *)d;
|
|
int i = 0;
|
|
|
|
for (i = 0; i < nfbstate->cols / 4; i++) {
|
|
int j = i * 4;
|
|
uint8_t src = s[i];
|
|
buf[j + 3] = pal[src & 0x3];
|
|
src >>= 2;
|
|
buf[j + 2] = pal[src & 0x3];
|
|
src >>= 2;
|
|
buf[j + 1] = pal[src & 0x3];
|
|
src >>= 2;
|
|
buf[j + 0] = pal[src & 0x3];
|
|
}
|
|
}
|
|
|
|
static void nextfb_update(void *opaque)
|
|
{
|
|
NeXTFbState *s = NEXTFB(opaque);
|
|
int dest_width = 4;
|
|
int src_width;
|
|
int first = 0;
|
|
int last = 0;
|
|
DisplaySurface *surface = qemu_console_surface(s->con);
|
|
|
|
src_width = s->cols / 4 + 8;
|
|
dest_width = s->cols * 4;
|
|
|
|
if (s->invalidate) {
|
|
framebuffer_update_memory_section(&s->fbsection, &s->fb_mr, 0,
|
|
s->cols, src_width);
|
|
s->invalidate = 0;
|
|
}
|
|
|
|
framebuffer_update_display(surface, &s->fbsection, s->cols, s->rows,
|
|
src_width, dest_width, 0, 1, nextfb_draw_line,
|
|
s, &first, &last);
|
|
|
|
dpy_gfx_update(s->con, 0, 0, s->cols, s->rows);
|
|
}
|
|
|
|
static void nextfb_invalidate(void *opaque)
|
|
{
|
|
NeXTFbState *s = NEXTFB(opaque);
|
|
s->invalidate = 1;
|
|
}
|
|
|
|
static const GraphicHwOps nextfb_ops = {
|
|
.invalidate = nextfb_invalidate,
|
|
.gfx_update = nextfb_update,
|
|
};
|
|
|
|
static void nextfb_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
NeXTFbState *s = NEXTFB(dev);
|
|
|
|
memory_region_init_ram(&s->fb_mr, OBJECT(dev), "next-video", 0x1CB100,
|
|
&error_fatal);
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->fb_mr);
|
|
|
|
s->invalidate = 1;
|
|
s->cols = 1120;
|
|
s->rows = 832;
|
|
|
|
s->con = graphic_console_init(dev, 0, &nextfb_ops, s);
|
|
qemu_console_resize(s->con, s->cols, s->rows);
|
|
}
|
|
|
|
static void nextfb_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
|
|
dc->realize = nextfb_realize;
|
|
|
|
/* Note: This device does not any state that we have to reset or migrate */
|
|
}
|
|
|
|
static const TypeInfo nextfb_info = {
|
|
.name = TYPE_NEXTFB,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(NeXTFbState),
|
|
.class_init = nextfb_class_init,
|
|
};
|
|
|
|
static void nextfb_register_types(void)
|
|
{
|
|
type_register_static(&nextfb_info);
|
|
}
|
|
|
|
type_init(nextfb_register_types)
|