/* * QEMU Sun4m System Emulator * * Copyright (c) 2003-2004 Fabrice Bellard * * 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 "vl.h" #define MAXX 1024 #define MAXY 768 /* * Proll uses only small part of display, we need to switch to full * display when we get linux framebuffer console or X11 running. For * now it's just slower and awkward. */ #if 1 #define XSZ (8*80) #define YSZ (24*11) #define XOFF (MAXX-XSZ) #define YOFF (MAXY-YSZ) #else #define XSZ MAXX #define YSZ MAXY #define XOFF 0 #define YOFF 0 #endif typedef struct TCXState { uint32_t addr; DisplayState *ds; uint8_t *vram; unsigned long vram_offset; uint8_t r[256], g[256], b[256]; } TCXState; static void tcx_draw_line32(TCXState *s1, uint8_t *d, const uint8_t *s, int width) { int x; uint8_t val; for(x = 0; x < width; x++) { val = *s++; *d++ = s1->r[val]; *d++ = s1->g[val]; *d++ = s1->b[val]; d++; } } static void tcx_draw_line24(TCXState *s1, uint8_t *d, const uint8_t *s, int width) { int x; uint8_t val; for(x = 0; x < width; x++) { val = *s++; *d++ = s1->r[val]; *d++ = s1->g[val]; *d++ = s1->b[val]; } } static void tcx_draw_line8(TCXState *s1, uint8_t *d, const uint8_t *s, int width) { int x; uint8_t val; for(x = 0; x < width; x++) { val = *s++; /* XXX translate between palettes? */ *d++ = val; } } /* Fixed line length 1024 allows us to do nice tricks not possible on VGA... */ void tcx_update_display(void *opaque) { TCXState *ts = opaque; uint32_t page; int y, page_min, page_max, y_start, dd, ds; uint8_t *d, *s; void (*f)(TCXState *s1, uint8_t *d, const uint8_t *s, int width); if (ts->ds->depth == 0) return; #ifdef LD_BYPASS_OK page = ts->vram_offset + YOFF*MAXX; #else page = ts->addr + YOFF*MAXX; #endif y_start = -1; page_min = 0x7fffffff; page_max = -1; d = ts->ds->data; s = ts->vram + YOFF*MAXX + XOFF; dd = ts->ds->linesize; ds = 1024; switch (ts->ds->depth) { case 32: f = tcx_draw_line32; break; case 24: f = tcx_draw_line24; break; default: case 8: f = tcx_draw_line8; break; case 0: return; } for(y = 0; y < YSZ; y += 4, page += TARGET_PAGE_SIZE) { if (cpu_physical_memory_is_dirty(page)) { if (y_start < 0) y_start = y; if (page < page_min) page_min = page; if (page > page_max) page_max = page; f(ts, d, s, XSZ); d += dd; s += ds; f(ts, d, s, XSZ); d += dd; s += ds; f(ts, d, s, XSZ); d += dd; s += ds; f(ts, d, s, XSZ); d += dd; s += ds; } else { if (y_start >= 0) { /* flush to display */ dpy_update(ts->ds, 0, y_start, XSZ, y - y_start); y_start = -1; } d += dd * 4; s += ds * 4; } } if (y_start >= 0) { /* flush to display */ dpy_update(ts->ds, 0, y_start, XSZ, y - y_start); } /* reset modified pages */ if (page_max != -1) { cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE); } } void tcx_invalidate_display(void *opaque) { TCXState *s = opaque; int i; for (i = 0; i < MAXX*MAXY; i += TARGET_PAGE_SIZE) { #ifdef LD_BYPASS_OK cpu_physical_memory_set_dirty(s->vram_offset + i); #else cpu_physical_memory_set_dirty(s->addr + i); #endif } } static void tcx_save(QEMUFile *f, void *opaque) { TCXState *s = opaque; qemu_put_be32s(f, (uint32_t *)&s->addr); qemu_put_be32s(f, (uint32_t *)&s->vram); qemu_put_buffer(f, s->r, 256); qemu_put_buffer(f, s->g, 256); qemu_put_buffer(f, s->b, 256); } static int tcx_load(QEMUFile *f, void *opaque, int version_id) { TCXState *s = opaque; if (version_id != 1) return -EINVAL; qemu_get_be32s(f, (uint32_t *)&s->addr); qemu_get_be32s(f, (uint32_t *)&s->vram); qemu_get_buffer(f, s->r, 256); qemu_get_buffer(f, s->g, 256); qemu_get_buffer(f, s->b, 256); return 0; } static void tcx_reset(void *opaque) { TCXState *s = opaque; /* Initialize palette */ memset(s->r, 0, 256); memset(s->g, 0, 256); memset(s->b, 0, 256); s->r[255] = s->g[255] = s->b[255] = 255; memset(s->vram, 0, MAXX*MAXY); #ifdef LD_BYPASS_OK cpu_physical_memory_reset_dirty(s->vram_offset, s->vram_offset + MAXX*MAXY - 1); #endif } void *tcx_init(DisplayState *ds, uint32_t addr, uint8_t *vram_base, unsigned long vram_offset, int vram_size) { TCXState *s; s = qemu_mallocz(sizeof(TCXState)); if (!s) return NULL; s->ds = ds; s->addr = addr; s->vram = vram_base; s->vram_offset = vram_offset; cpu_register_physical_memory(addr, vram_size, vram_offset); register_savevm("tcx", addr, 1, tcx_save, tcx_load, s); qemu_register_reset(tcx_reset, s); tcx_reset(s); dpy_resize(s->ds, XSZ, YSZ); return s; } void tcx_screen_dump(void *opaque, const char *filename) { TCXState *s = opaque; FILE *f; uint8_t *d, *d1, v; int y, x; f = fopen(filename, "wb"); if (!f) return; fprintf(f, "P6\n%d %d\n%d\n", XSZ, YSZ, 255); d1 = s->vram + YOFF*MAXX + XOFF; for(y = 0; y < YSZ; y++) { d = d1; for(x = 0; x < XSZ; x++) { v = *d; fputc(s->r[v], f); fputc(s->g[v], f); fputc(s->b[v], f); d++; } d1 += MAXX; } fclose(f); return; }