123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144 |
- /*
- * 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/loader.h"
- #include "framebuffer.h"
- #include "ui/pixel_ops.h"
- #include "hw/m68k/next-cube.h"
- #include "qom/object.h"
- OBJECT_DECLARE_SIMPLE_TYPE(NeXTFbState, NEXTFB)
- struct NeXTFbState {
- SysBusDevice parent_obj;
- MemoryRegion fb_mr;
- MemoryRegionSection fbsection;
- QemuConsole *con;
- uint32_t cols;
- uint32_t rows;
- int invalidate;
- };
- 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 have 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)
|