s->graphic_mode = -1; /* force full update */
}
+#define TEXTMODE_X(x) ((x) % width)
+#define TEXTMODE_Y(x) ((x) / width)
+#define VMEM2CHTYPE(v) ((v & 0xff0007ff) | \
+ ((v & 0x00000800) << 10) | ((v & 0x00007000) >> 1))
+/* relay text rendering to the display driver
+ * instead of doing a full vga_update_display() */
+static void vga_update_text(void *opaque, console_ch_t *chardata)
+{
+ VGAState *s = (VGAState *) opaque;
+ int graphic_mode, i, cursor_offset, cursor_visible;
+ int cw, cheight, width, height, size, c_min, c_max;
+ uint32_t *src;
+ console_ch_t *dst, val;
+ char msg_buffer[80];
+ int full_update;
+ full_update = 0;
+
+ if (!(s->ar_index & 0x20)) {
+ graphic_mode = GMODE_BLANK;
+ } else {
+ graphic_mode = s->gr[6] & 1;
+ }
+ if (graphic_mode != s->graphic_mode) {
+ s->graphic_mode = graphic_mode;
+ full_update = 1;
+ }
+ if (s->last_width == -1) {
+ s->last_width = 0;
+ full_update = 1;
+ }
+
+ switch (graphic_mode) {
+ case GMODE_TEXT:
+ /* TODO: update palette */
+ full_update |= update_basic_params(s);
+
+ /* total width & height */
+ cheight = (s->cr[9] & 0x1f) + 1;
+ cw = 8;
+ if (!(s->sr[1] & 0x01))
+ cw = 9;
+ if (s->sr[1] & 0x08)
+ cw = 16; /* NOTE: no 18 pixel wide */
+ width = (s->cr[0x01] + 1);
+ if (s->cr[0x06] == 100) {
+ /* ugly hack for CGA 160x100x16 - explain me the logic */
+ height = 100;
+ } else {
+ height = s->cr[0x12] |
+ ((s->cr[0x07] & 0x02) << 7) |
+ ((s->cr[0x07] & 0x40) << 3);
+ height = (height + 1) / cheight;
+ }
+
+ size = (height * width);
+ if (size > CH_ATTR_SIZE) {
+ if (!full_update)
+ return;
+
+ sprintf(msg_buffer, "%i x %i Text mode", width, height);
+ break;
+ }
+
+ if (width != s->last_width || height != s->last_height ||
+ cw != s->last_cw || cheight != s->last_ch) {
+ s->last_scr_width = width * cw;
+ s->last_scr_height = height * cheight;
+ dpy_resize(s->ds, width, height);
+ s->last_width = width;
+ s->last_height = height;
+ s->last_ch = cheight;
+ s->last_cw = cw;
+ full_update = 1;
+ }
+
+ /* Update "hardware" cursor */
+ 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 || full_update) {
+ cursor_visible = !(s->cr[0xa] & 0x20);
+ if (cursor_visible && cursor_offset < size && cursor_offset >= 0)
+ dpy_cursor(s->ds,
+ TEXTMODE_X(cursor_offset),
+ TEXTMODE_Y(cursor_offset));
+ else
+ dpy_cursor(s->ds, -1, -1);
+ s->cursor_offset = cursor_offset;
+ s->cursor_start = s->cr[0xa];
+ s->cursor_end = s->cr[0xb];
+ }
+
+ src = (uint32_t *) s->vram_ptr + s->start_addr;
+ dst = chardata;
+
+ if (full_update) {
+ for (i = 0; i < size; src ++, dst ++, i ++)
+ console_write_ch(dst, VMEM2CHTYPE(*src));
+
+ dpy_update(s->ds, 0, 0, width, height);
+ } else {
+ c_max = 0;
+
+ for (i = 0; i < size; src ++, dst ++, i ++) {
+ console_write_ch(&val, VMEM2CHTYPE(*src));
+ if (*dst != val) {
+ *dst = val;
+ c_max = i;
+ break;
+ }
+ }
+ c_min = i;
+ for (; i < size; src ++, dst ++, i ++) {
+ console_write_ch(&val, VMEM2CHTYPE(*src));
+ if (*dst != val) {
+ *dst = val;
+ c_max = i;
+ }
+ }
+
+ if (c_min <= c_max) {
+ i = TEXTMODE_Y(c_min);
+ dpy_update(s->ds, 0, i, width, TEXTMODE_Y(c_max) - i + 1);
+ }
+ }
+
+ return;
+ case GMODE_GRAPH:
+ if (!full_update)
+ return;
+
+ s->get_resolution(s, &width, &height);
+ sprintf(msg_buffer, "%i x %i Graphic mode", width, height);
+ break;
+ case GMODE_BLANK:
+ default:
+ if (!full_update)
+ return;
+
+ sprintf(msg_buffer, "VGA Blank mode");
+ break;
+ }
+
+ /* Display a message */
+ dpy_cursor(s->ds, -1, -1);
+ dpy_resize(s->ds, 60, 3);
+
+ for (dst = chardata, i = 0; i < 60 * 3; i ++)
+ console_write_ch(dst ++, ' ');
+
+ size = strlen(msg_buffer);
+ width = (60 - size) / 2;
+ dst = chardata + 60 + width;
+ for (i = 0; i < size; i ++)
+ console_write_ch(dst ++, 0x00200100 | msg_buffer[i]);
+
+ dpy_update(s->ds, 0, 0, 60, 3);
+}
+
static CPUReadMemoryFunc *vga_mem_read[3] = {
vga_mem_readb,
vga_mem_readw,
s->update = vga_update_display;
s->invalidate = vga_invalidate_display;
s->screen_dump = vga_screen_dump;
+ s->text_update = vga_update_text;
}
/* used by both ISA and PCI */
vga_common_init(s, ds, vga_ram_base, vga_ram_offset, vga_ram_size);
vga_init(s);
- graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump, s);
+ graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump,
+ s->text_update, s);
#ifdef CONFIG_BOCHS_VBE
/* XXX: use optimized standard vga accesses */
vga_common_init(s, ds, vga_ram_base, vga_ram_offset, vga_ram_size);
vga_mm_init(s, vram_base, ctrl_base, it_shift);
- graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump, s);
+ graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump,
+ s->text_update, s);
#ifdef CONFIG_BOCHS_VBE
/* XXX: use optimized standard vga accesses */
vga_common_init(s, ds, vga_ram_base, vga_ram_offset, vga_ram_size);
vga_init(s);
- graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump, s);
+ graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump,
+ s->text_update, s);
s->pci_dev = &d->dev;
projects / mirror_qemu.git / blobdiff