static void vga_draw_text(VGAState *s, int full_update) { int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr; int cx_min, cx_max, linesize, x_incr; uint32_t offset, fgcol, bgcol, v, cursor_offset; uint8_t *d1, *d, *src, *s1, *dest, *cursor_ptr; const uint8_t *font_ptr, *font_base[2]; int dup9, line_offset, depth_index; uint32_t *palette; uint32_t *ch_attr_ptr; vga_draw_glyph8_func *vga_draw_glyph8; vga_draw_glyph9_func *vga_draw_glyph9; vga_dirty_log_stop(s); /* compute font data address (in plane 2) */ v = s->sr[3]; offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2; if (offset != s->font_offsets[0]) { s->font_offsets[0] = offset; full_update = 1; } font_base[0] = s->vram_ptr + offset; offset = (((v >> 5) & 1) | ((v >> 1) & 6)) * 8192 * 4 + 2; font_base[1] = s->vram_ptr + offset; if (offset != s->font_offsets[1]) { s->font_offsets[1] = offset; full_update = 1; } if (s->plane_updated & (1 << 2)) { /* if the plane 2 was modified since the last display, it indicates the font may have been modified */ s->plane_updated = 0; full_update = 1; } full_update |= update_basic_params(s); line_offset = s->line_offset; s1 = s->vram_ptr + (s->start_addr * 4); vga_get_text_resolution(s, &width, &height, &cw, &cheight); x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3); if ((height * width) > CH_ATTR_SIZE) { /* better than nothing: exit if transient size is too big */ return; } if (width != s->last_width || height != s->last_height || cw != s->last_cw || cheight != s->last_ch || s->last_depth) { s->last_scr_width = width * cw; s->last_scr_height = height * cheight; qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height); s->last_depth = 0; s->last_width = width; s->last_height = height; s->last_ch = cheight; s->last_cw = cw; full_update = 1; } s->rgb_to_pixel = rgb_to_pixel_dup_table[get_depth_index(s->ds)]; full_update |= update_palette16(s); palette = s->last_palette; x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3); cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr; if (cursor_offset != s->cursor_offset || s->cr[0xa] != s->cursor_start || s->cr[0xb] != s->cursor_end) { /* if the cursor position changed, we update the old and new chars */ if (s->cursor_offset < CH_ATTR_SIZE) s->last_ch_attr[s->cursor_offset] = -1; if (cursor_offset < CH_ATTR_SIZE) s->last_ch_attr[cursor_offset] = -1; s->cursor_offset = cursor_offset; s->cursor_start = s->cr[0xa]; s->cursor_end = s->cr[0xb]; } cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4; depth_index = get_depth_index(s->ds); if (cw == 16) vga_draw_glyph8 = vga_draw_glyph16_table[depth_index]; else vga_draw_glyph8 = vga_draw_glyph8_table[depth_index]; vga_draw_glyph9 = vga_draw_glyph9_table[depth_index]; dest = ds_get_data(s->ds); linesize = ds_get_linesize(s->ds); ch_attr_ptr = s->last_ch_attr; for(cy = 0; cy < height; cy++) { d1 = dest; src = s1; cx_min = width; cx_max = -1; for(cx = 0; cx < width; cx++) { ch_attr = *(uint16_t *)src; if (full_update || ch_attr != *ch_attr_ptr) { if (cx < cx_min) cx_min = cx; if (cx > cx_max) cx_max = cx; *ch_attr_ptr = ch_attr; #ifdef WORDS_BIGENDIAN ch = ch_attr >> 8; cattr = ch_attr & 0xff; #else ch = ch_attr & 0xff; cattr = ch_attr >> 8; #endif font_ptr = font_base[(cattr >> 3) & 1]; font_ptr += 32 * 4 * ch; bgcol = palette[cattr >> 4]; fgcol = palette[cattr & 0x0f]; if (cw != 9) { vga_draw_glyph8(d1, linesize, font_ptr, cheight, fgcol, bgcol); } else { dup9 = 0; if (ch >= 0xb0 && ch <= 0xdf && (s->ar[0x10] & 0x04)) dup9 = 1; vga_draw_glyph9(d1, linesize, font_ptr, cheight, fgcol, bgcol, dup9); } if (src == cursor_ptr && !(s->cr[0x0a] & 0x20)) { int line_start, line_last, h; /* draw the cursor */ line_start = s->cr[0x0a] & 0x1f; line_last = s->cr[0x0b] & 0x1f; /* XXX: check that */ if (line_last > cheight - 1) line_last = cheight - 1; if (line_last >= line_start && line_start < cheight) { h = line_last - line_start + 1; d = d1 + linesize * line_start; if (cw != 9) { vga_draw_glyph8(d, linesize, cursor_glyph, h, fgcol, bgcol); } else { vga_draw_glyph9(d, linesize, cursor_glyph, h, fgcol, bgcol, 1); } } } } d1 += x_incr; src += 4; ch_attr_ptr++; } if (cx_max != -1) { dpy_update(s->ds, cx_min * cw, cy * cheight, (cx_max - cx_min + 1) * cw, cheight); } dest += linesize * cheight; s1 += line_offset; } }