diff options
| -rw-r--r-- | hw/cirrus_vga.c | 11 | ||||
| -rw-r--r-- | hw/vga.c | 275 | ||||
| -rw-r--r-- | hw/vga_int.h | 4 |
3 files changed, 170 insertions, 120 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c index 08fd4c29a6..223008e0f2 100644 --- a/hw/cirrus_vga.c +++ b/hw/cirrus_vga.c @@ -1392,6 +1392,8 @@ cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value) break; } + vga_update_resolution((VGAState *)s); + return CIRRUS_HOOK_HANDLED; } @@ -1419,6 +1421,7 @@ static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value) #endif } s->cirrus_hidden_dac_lockindex = 0; + vga_update_resolution((VGAState *)s); } /*************************************** @@ -1705,6 +1708,8 @@ cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value) break; } + vga_update_resolution((VGAState *)s); + return CIRRUS_HOOK_HANDLED; } @@ -2830,6 +2835,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) if (s->ar_flip_flop == 0) { val &= 0x3f; s->ar_index = val; + vga_update_resolution((VGAState *)s); } else { index = s->ar_index & 0x1f; switch (index) { @@ -2923,6 +2929,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) /* can always write bit 4 of CR7 */ if (s->cr_index == 7) s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10); + vga_update_resolution((VGAState *)s); return; } switch (s->cr_index) { @@ -2951,6 +2958,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) s->update_retrace_info((VGAState *) s); break; } + vga_update_resolution((VGAState *)s); break; case 0x3ba: case 0x3da: @@ -3157,7 +3165,8 @@ static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id) cirrus_update_memory_access(s); /* force refresh */ - s->graphic_mode = -1; + vga_update_resolution((VGAState *)s); + s->want_full_update = 1; cirrus_update_bank_ptr(s, 0); cirrus_update_bank_ptr(s, 1); return 0; @@ -36,6 +36,10 @@ //#define DEBUG_BOCHS_VBE +#define GMODE_TEXT 0 +#define GMODE_GRAPH 1 +#define GMODE_BLANK 2 + /* force some bits to zero */ const uint8_t sr_mask[8] = { 0x03, @@ -393,6 +397,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) if (s->ar_flip_flop == 0) { val &= 0x3f; s->ar_index = val; + vga_update_resolution(s); } else { index = s->ar_index & 0x1f; switch(index) { @@ -433,6 +438,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) #endif s->sr[s->sr_index] = val & sr_mask[s->sr_index]; if (s->sr_index == 1) s->update_retrace_info(s); + vga_update_resolution(s); break; case 0x3c7: s->dac_read_index = val; @@ -460,6 +466,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) printf("vga: write GR%x = 0x%02x\n", s->gr_index, val); #endif s->gr[s->gr_index] = val & gr_mask[s->gr_index]; + vga_update_resolution(s); break; case 0x3b4: case 0x3d4: @@ -475,6 +482,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) /* can always write bit 4 of CR7 */ if (s->cr_index == 7) s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10); + vga_update_resolution(s); return; } switch(s->cr_index) { @@ -502,6 +510,7 @@ static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) s->update_retrace_info(s); break; } + vga_update_resolution(s); break; case 0x3ba: case 0x3da: @@ -581,11 +590,13 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) if ((val <= VBE_DISPI_MAX_XRES) && ((val & 7) == 0)) { s->vbe_regs[s->vbe_index] = val; } + vga_update_resolution(s); break; case VBE_DISPI_INDEX_YRES: if (val <= VBE_DISPI_MAX_YRES) { s->vbe_regs[s->vbe_index] = val; } + vga_update_resolution(s); break; case VBE_DISPI_INDEX_BPP: if (val == 0) @@ -594,6 +605,7 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) val == 16 || val == 24 || val == 32) { s->vbe_regs[s->vbe_index] = val; } + vga_update_resolution(s); break; case VBE_DISPI_INDEX_BANK: if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { @@ -662,6 +674,7 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) } s->dac_8bit = (val & VBE_DISPI_8BIT_DAC) > 0; s->vbe_regs[s->vbe_index] = val; + vga_update_resolution(s); break; case VBE_DISPI_INDEX_VIRT_WIDTH: { @@ -682,6 +695,7 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = h; s->vbe_line_offset = line_offset; } + vga_update_resolution(s); break; case VBE_DISPI_INDEX_X_OFFSET: case VBE_DISPI_INDEX_Y_OFFSET: @@ -696,6 +710,7 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) s->vbe_start_addr += x * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); s->vbe_start_addr >>= 2; } + vga_update_resolution(s); break; default: break; @@ -1302,7 +1317,6 @@ static void vga_draw_text(VGAState *s, int full_update) 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); @@ -1314,18 +1328,6 @@ static void vga_draw_text(VGAState *s, int full_update) 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); @@ -1582,39 +1584,21 @@ static void vga_sync_dirty_bitmap(VGAState *s) vga_dirty_log_start(s); } -/* - * graphic modes - */ -static void vga_draw_graphic(VGAState *s, int full_update) +static void vga_update_resolution_graphics(VGAState *s) { - int y1, y, update, page_min, page_max, linesize, y_start, double_scan, mask, depth; - int width, height, shift_control, line_offset, page0, page1, bwidth, bits; + int depth = s->get_bpp(s); + int width, height, shift_control, double_scan; int disp_width, multi_scan, multi_run; - uint8_t *d; - uint32_t v, addr1, addr; - vga_draw_line_func *vga_draw_line; - - full_update |= update_basic_params(s); - - if (!full_update) - vga_sync_dirty_bitmap(s); s->get_resolution(s, &width, &height); disp_width = width; shift_control = (s->gr[0x05] >> 5) & 3; double_scan = (s->cr[0x09] >> 7); - if (shift_control != 1) { - multi_scan = (((s->cr[0x09] & 0x1f) + 1) << double_scan) - 1; - } else { - /* in CGA modes, multi_scan is ignored */ - /* XXX: is it correct ? */ - multi_scan = double_scan; - } - multi_run = multi_scan; + if (shift_control != s->shift_control || double_scan != s->double_scan) { - full_update = 1; + s->want_full_update = 1; s->shift_control = shift_control; s->double_scan = double_scan; } @@ -1628,12 +1612,28 @@ static void vga_draw_graphic(VGAState *s, int full_update) disp_width <<= 1; } } + disp_width = width; + + if (shift_control != 1) { + multi_scan = (((s->cr[0x09] & 0x1f) + 1) << double_scan) - 1; + } else { + /* in CGA modes, multi_scan is ignored */ + /* XXX: is it correct ? */ + multi_scan = double_scan; + } + + multi_run = multi_scan; - depth = s->get_bpp(s); if (s->line_offset != s->last_line_offset || disp_width != s->last_width || height != s->last_height || - s->last_depth != depth) { + s->last_depth != depth || + s->multi_run != multi_run || + s->multi_scan != multi_scan || + s->want_full_update) { + if (s->ds->surface->pf.depth == 0) { + goto dont_touch_display_surface; + } #if defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) if (depth == 16 || depth == 32) { #else @@ -1650,14 +1650,91 @@ static void vga_draw_graphic(VGAState *s, int full_update) } else { qemu_console_resize(s->ds, disp_width, height); } + dont_touch_display_surface: s->last_scr_width = disp_width; s->last_scr_height = height; s->last_width = disp_width; s->last_height = height; s->last_line_offset = s->line_offset; s->last_depth = depth; - full_update = 1; - } else if (is_buffer_shared(s->ds->surface) && + s->multi_run = multi_run; + s->multi_scan = multi_scan; + s->want_full_update = 1; + } +} + +static void vga_update_resolution_text(VGAState *s) +{ + int width, height, cw, cheight; + + vga_get_text_resolution(s, &width, &height, &cw, &cheight); + 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; + if (s->ds->surface->pf.depth != 0) { + qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height); + } else { + /* + * curses expects width and height to be in character cell + * dimensions, not pixels. + */ + s->ds->surface->width = width; + s->ds->surface->height = height; + dpy_resize(s->ds); + } + s->last_depth = 0; + s->last_width = width; + s->last_height = height; + s->last_ch = cheight; + s->last_cw = cw; + s->want_full_update = 1; + } +} + +void vga_update_resolution(VGAState *s) +{ + int graphic_mode; + + 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; + s->want_full_update = 1; + } + s->want_full_update |= update_basic_params(s); + switch (graphic_mode) { + case GMODE_TEXT: + vga_update_resolution_text(s); + break; + case GMODE_GRAPH: + vga_update_resolution_graphics(s); + break; + } +} + +/* + * graphic modes + */ +static void vga_draw_graphic(VGAState *s, int full_update) +{ + int y1, y, update, linesize, y_start, mask; + int width, height, line_offset, bwidth, bits; + int multi_run; + uint8_t *d; + uint32_t v, addr1, addr; + long page0, page1, page_min, page_max; + vga_draw_line_func *vga_draw_line; + + if (!full_update) + vga_sync_dirty_bitmap(s); + + s->get_resolution(s, &width, &height); + multi_run = s->multi_run; + if (is_buffer_shared(s->ds->surface) && (full_update || s->ds->surface->data != s->vram_ptr + (s->start_addr * 4))) { s->ds->surface->data = s->vram_ptr + (s->start_addr * 4); dpy_setdata(s->ds); @@ -1666,7 +1743,7 @@ static void vga_draw_graphic(VGAState *s, int full_update) s->rgb_to_pixel = rgb_to_pixel_dup_table[get_depth_index(s->ds)]; - if (shift_control == 0) { + if (s->shift_control == 0) { full_update |= update_palette16(s); if (s->sr[0x01] & 8) { v = VGA_DRAW_LINE4D2; @@ -1674,7 +1751,7 @@ static void vga_draw_graphic(VGAState *s, int full_update) v = VGA_DRAW_LINE4; } bits = 4; - } else if (shift_control == 1) { + } else if (s->shift_control == 1) { full_update |= update_palette16(s); if (s->sr[0x01] & 8) { v = VGA_DRAW_LINE2D2; @@ -1770,7 +1847,7 @@ static void vga_draw_graphic(VGAState *s, int full_update) if (y_start >= 0) { /* flush to display */ dpy_update(s->ds, 0, y_start, - disp_width, y - y_start); + s->last_width, y - y_start); y_start = -1; } } @@ -1779,7 +1856,7 @@ static void vga_draw_graphic(VGAState *s, int full_update) if ((y1 & mask) == mask) addr1 += line_offset; y1++; - multi_run = multi_scan; + multi_run = s->multi_scan; } else { multi_run--; } @@ -1791,7 +1868,7 @@ static void vga_draw_graphic(VGAState *s, int full_update) if (y_start >= 0) { /* flush to display */ dpy_update(s->ds, 0, y_start, - disp_width, y - y_start); + s->last_width, y - y_start); } /* reset modified pages */ if (page_max != -1) { @@ -1828,29 +1905,17 @@ static void vga_draw_blank(VGAState *s, int full_update) s->last_scr_width, s->last_scr_height); } -#define GMODE_TEXT 0 -#define GMODE_GRAPH 1 -#define GMODE_BLANK 2 - static void vga_update_display(void *opaque) { VGAState *s = (VGAState *)opaque; - int full_update, graphic_mode; + int full_update; if (ds_get_bits_per_pixel(s->ds) == 0) { /* nothing to do */ } else { - 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; - } - switch(graphic_mode) { + full_update = s->want_full_update; + s->want_full_update = 0; + switch(s->graphic_mode) { case GMODE_TEXT: vga_draw_text(s, full_update); break; @@ -1870,8 +1935,8 @@ static void vga_invalidate_display(void *opaque) { VGAState *s = (VGAState *)opaque; - s->last_width = -1; - s->last_height = -1; + vga_update_resolution(s); + s->want_full_update = 1; } void vga_reset(void *opaque) @@ -1915,7 +1980,6 @@ void vga_reset(void *opaque) s->vbe_bank_mask = (s->vram_size >> 16) - 1; #endif memset(s->font_offsets, '\0', sizeof(s->font_offsets)); - s->graphic_mode = -1; /* force full update */ s->shift_control = 0; s->double_scan = 0; s->line_offset = 0; @@ -1941,6 +2005,7 @@ void vga_reset(void *opaque) memset(&s->retrace_info, 0, sizeof (s->retrace_info)); break; } + vga_update_resolution(s); } #define TEXTMODE_X(x) ((x) % width) @@ -1952,50 +2017,28 @@ void vga_reset(void *opaque) static void vga_update_text(void *opaque, console_ch_t *chardata) { VGAState *s = (VGAState *) opaque; - int graphic_mode, i, cursor_offset, cursor_visible; + int 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 = 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; - } + int full_update = s->want_full_update; - switch (graphic_mode) { + s->want_full_update = 0; + switch (s->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; + vga_get_text_resolution(s, &width, &height, &cw, &cheight); + + if (s->ds->surface->width != width + || s->ds->surface->height != height) { + s->ds->surface->width = width; + s->ds->surface->height = height; + dpy_resize(s->ds); } + /* total width & height */ size = (height * width); if (size > CH_ATTR_SIZE) { if (!full_update) @@ -2006,20 +2049,6 @@ static void vga_update_text(void *opaque, console_ch_t *chardata) 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; - s->ds->surface->width = width; - s->ds->surface->height = height; - dpy_resize(s->ds); - 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 || @@ -2218,7 +2247,8 @@ static int vga_load(QEMUFile *f, void *opaque, int version_id) #endif /* force refresh */ - s->graphic_mode = -1; + vga_update_resolution(s); + s->want_full_update = 1; return 0; } @@ -2641,7 +2671,8 @@ static void vga_screen_dump_common(VGAState *s, const char *filename, ds->surface = qemu_create_displaysurface(ds, w, h); s->ds = ds; - s->graphic_mode = -1; + vga_update_resolution(s); + s->want_full_update = 1; vga_update_display(s); ppm_save(filename, ds->surface); @@ -2672,10 +2703,16 @@ static void vga_screen_dump(void *opaque, const char *filename) { VGAState *s = (VGAState *)opaque; - if (!(s->ar_index & 0x20)) - vga_screen_dump_blank(s, filename); - else if (s->gr[6] & 1) - vga_screen_dump_graphic(s, filename); - else + switch (s->graphic_mode) { + case GMODE_TEXT: vga_screen_dump_text(s, filename); + break; + case GMODE_GRAPH: + vga_screen_dump_graphic(s, filename); + break; + case GMODE_BLANK: + default: + vga_screen_dump_blank(s, filename); + break; + } } diff --git a/hw/vga_int.h b/hw/vga_int.h index f97e98fc97..6ab9742672 100644 --- a/hw/vga_int.h +++ b/hw/vga_int.h @@ -147,8 +147,11 @@ typedef void (* vga_update_retrace_info_fn)(struct VGAState *s); DisplayState *ds; \ uint32_t font_offsets[2]; \ int graphic_mode; \ + int want_full_update; \ uint8_t shift_control; \ uint8_t double_scan; \ + uint8_t multi_run; \ + uint8_t multi_scan; \ uint32_t line_offset; \ uint32_t line_compare; \ uint32_t start_addr; \ @@ -195,6 +198,7 @@ void vga_common_init(VGAState *s, uint8_t *vga_ram_base, ram_addr_t vga_ram_offset, int vga_ram_size); void vga_init(VGAState *s); void vga_reset(void *s); +void vga_update_resolution(VGAState *s); void vga_dirty_log_start(VGAState *s); void vga_dirty_log_stop(VGAState *s); |