* THE SOFTWARE.
*/
#include "vl.h"
+#include "vga_int.h"
//#define DEBUG_VGA
//#define DEBUG_VGA_MEM
/* S3 VGA is deprecated - another graphic card will be emulated */
//#define CONFIG_S3VGA
-#define MSR_COLOR_EMULATION 0x01
-#define MSR_PAGE_SELECT 0x20
-
-#define ST01_V_RETRACE 0x08
-#define ST01_DISP_ENABLE 0x01
-
-/* bochs VBE support */
-#define CONFIG_BOCHS_VBE
-
-#define VBE_DISPI_MAX_XRES 1024
-#define VBE_DISPI_MAX_YRES 768
-
-#define VBE_DISPI_INDEX_ID 0x0
-#define VBE_DISPI_INDEX_XRES 0x1
-#define VBE_DISPI_INDEX_YRES 0x2
-#define VBE_DISPI_INDEX_BPP 0x3
-#define VBE_DISPI_INDEX_ENABLE 0x4
-#define VBE_DISPI_INDEX_BANK 0x5
-#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
-#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
-#define VBE_DISPI_INDEX_X_OFFSET 0x8
-#define VBE_DISPI_INDEX_Y_OFFSET 0x9
-#define VBE_DISPI_INDEX_NB 0xa
-
-#define VBE_DISPI_ID0 0xB0C0
-#define VBE_DISPI_ID1 0xB0C1
-#define VBE_DISPI_ID2 0xB0C2
-
-#define VBE_DISPI_DISABLED 0x00
-#define VBE_DISPI_ENABLED 0x01
-#define VBE_DISPI_LFB_ENABLED 0x40
-#define VBE_DISPI_NOCLEARMEM 0x80
-
-#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
-
-typedef struct VGAState {
- uint8_t *vram_ptr;
- unsigned long vram_offset;
- unsigned int vram_size;
- uint32_t latch;
- uint8_t sr_index;
- uint8_t sr[8];
- uint8_t gr_index;
- uint8_t gr[16];
- uint8_t ar_index;
- uint8_t ar[21];
- int ar_flip_flop;
- uint8_t cr_index;
- uint8_t cr[256]; /* CRT registers */
- uint8_t msr; /* Misc Output Register */
- uint8_t fcr; /* Feature Control Register */
- uint8_t st00; /* status 0 */
- uint8_t st01; /* status 1 */
- uint8_t dac_state;
- uint8_t dac_sub_index;
- uint8_t dac_read_index;
- uint8_t dac_write_index;
- uint8_t dac_cache[3]; /* used when writing */
- uint8_t palette[768];
- int32_t bank_offset;
-#ifdef CONFIG_BOCHS_VBE
- uint16_t vbe_index;
- uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
- uint32_t vbe_start_addr;
- uint32_t vbe_line_offset;
- uint32_t vbe_bank_mask;
-#endif
- /* display refresh support */
- DisplayState *ds;
- uint32_t font_offsets[2];
- int graphic_mode;
- uint8_t shift_control;
- uint8_t double_scan;
- uint32_t line_offset;
- uint32_t line_compare;
- uint32_t start_addr;
- uint8_t last_cw, last_ch;
- uint32_t last_width, last_height; /* in chars or pixels */
- uint32_t last_scr_width, last_scr_height; /* in pixels */
- uint8_t cursor_start, cursor_end;
- uint32_t cursor_offset;
- unsigned int (*rgb_to_pixel)(unsigned int r, unsigned int g, unsigned b);
- /* tell for each page if it has been updated since the last time */
- uint32_t last_palette[256];
-#define CH_ATTR_SIZE (160 * 100)
- uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
-} VGAState;
-
/* force some bits to zero */
-static const uint8_t sr_mask[8] = {
+const uint8_t sr_mask[8] = {
(uint8_t)~0xfc,
(uint8_t)~0xc2,
(uint8_t)~0xf0,
(uint8_t)~0x00,
};
-static const uint8_t gr_mask[16] = {
+const uint8_t gr_mask[16] = {
(uint8_t)~0xf0, /* 0x00 */
(uint8_t)~0xf0, /* 0x01 */
(uint8_t)~0xf0, /* 0x02 */
static uint16_t expand2[256];
static uint8_t expand4to8[16];
-VGAState vga_state;
+VGAState *vga_state;
int vga_io_memory;
static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
#endif
/* called for accesses between 0xa0000 and 0xc0000 */
-static uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr)
+uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr)
{
VGAState *s = opaque;
int memory_map_mode, plane;
}
/* called for accesses between 0xa0000 and 0xc0000 */
-static void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
VGAState *s = opaque;
int memory_map_mode, plane, write_mode, b, func_select;
#define DEPTH 32
#include "vga_template.h"
-static inline int c6_to_8(int v)
-{
- int b;
- v &= 0x3f;
- b = v & 1;
- return (v << 2) | (b << 1) | b;
-}
-
static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b)
{
unsigned int col;
return full_update;
}
-/* update start_addr and line_offset. Return TRUE if modified */
-static int update_basic_params(VGAState *s)
+static void vga_get_offsets(VGAState *s,
+ uint32_t *pline_offset,
+ uint32_t *pstart_addr)
{
- int full_update;
- uint32_t start_addr, line_offset, line_compare;
-
- full_update = 0;
-
+ uint32_t start_addr, line_offset;
#ifdef CONFIG_BOCHS_VBE
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
line_offset = s->vbe_line_offset;
start_addr |= (s->cr[0x69] & 0x1f) << 16; /* S3 extension */
#endif
}
+ *pline_offset = line_offset;
+ *pstart_addr = start_addr;
+}
+
+/* update start_addr and line_offset. Return TRUE if modified */
+static int update_basic_params(VGAState *s)
+{
+ int full_update;
+ uint32_t start_addr, line_offset, line_compare;
+ full_update = 0;
+
+ s->get_offsets(s, &line_offset, &start_addr);
/* line compare */
line_compare = s->cr[0x18] |
((s->cr[0x07] & 0x10) << 4) |
vga_draw_line32_32,
};
+static int vga_get_bpp(VGAState *s)
+{
+ int ret;
+#ifdef CONFIG_BOCHS_VBE
+ if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
+ ret = s->vbe_regs[VBE_DISPI_INDEX_BPP];
+ } else
+#endif
+ {
+ ret = 0;
+ }
+ return ret;
+}
+
+void vga_invalidate_scanlines(VGAState *s, int y1, int y2)
+{
+ int y;
+ if (y1 >= VGA_MAX_HEIGHT)
+ return;
+ if (y2 >= VGA_MAX_HEIGHT)
+ y2 = VGA_MAX_HEIGHT;
+ for(y = y1; y < y2; y++) {
+ s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f);
+ }
+}
+
/*
* graphic modes
- * Missing:
- * - double scan
- * - double width
*/
static void vga_draw_graphic(VGAState *s, int full_update)
{
v = VGA_DRAW_LINE2;
}
} else {
-#ifdef CONFIG_BOCHS_VBE
- if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
- switch(s->vbe_regs[VBE_DISPI_INDEX_BPP]) {
- default:
- case 8:
- full_update |= update_palette256(s);
- v = VGA_DRAW_LINE8;
- break;
- case 15:
- v = VGA_DRAW_LINE15;
- break;
- case 16:
- v = VGA_DRAW_LINE16;
- break;
- case 24:
- v = VGA_DRAW_LINE24;
- break;
- case 32:
- v = VGA_DRAW_LINE32;
- break;
- }
- } else
-#endif
- {
+ switch(s->get_bpp(s)) {
+ default:
+ case 0:
full_update |= update_palette256(s);
v = VGA_DRAW_LINE8D2;
+ break;
+ case 8:
+ full_update |= update_palette256(s);
+ v = VGA_DRAW_LINE8;
+ break;
+ case 15:
+ v = VGA_DRAW_LINE15;
+ break;
+ case 16:
+ v = VGA_DRAW_LINE16;
+ break;
+ case 24:
+ v = VGA_DRAW_LINE24;
+ break;
+ case 32:
+ v = VGA_DRAW_LINE32;
+ break;
}
}
vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(s->ds->depth)];
s->last_height = height;
full_update = 1;
}
-
+ if (s->cursor_invalidate)
+ s->cursor_invalidate(s);
+
line_offset = s->line_offset;
#if 0
printf("w=%d h=%d v=%d line_offset=%d double_scan=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=%02x\n",
/* if wide line, can use another page */
update |= cpu_physical_memory_is_dirty(page0 + TARGET_PAGE_SIZE);
}
+ /* explicit invalidation for the hardware cursor */
+ update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
if (update) {
if (y_start < 0)
y_start = y;
if (page1 > page_max)
page_max = page1;
vga_draw_line(s, d, s->vram_ptr + addr, width);
+ if (s->cursor_draw_line)
+ s->cursor_draw_line(s, d, y);
} else {
if (y_start >= 0) {
/* flush to display */
if (page_max != -1) {
cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE);
}
+ memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4);
}
static void vga_draw_blank(VGAState *s, int full_update)
void vga_update_display(void)
{
- VGAState *s = &vga_state;
+ VGAState *s = vga_state;
int full_update, graphic_mode;
if (s->ds->depth == 0) {
static void vga_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type)
{
- VGAState *s = &vga_state;
+ VGAState *s = vga_state;
cpu_register_physical_memory(addr, s->vram_size, s->vram_offset);
}
-int vga_initialize(DisplayState *ds, uint8_t *vga_ram_base,
- unsigned long vga_ram_offset, int vga_ram_size,
- int is_pci)
+void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base,
+ unsigned long vga_ram_offset, int vga_ram_size)
{
- VGAState *s = &vga_state;
int i, j, v, b;
for(i = 0;i < 256; i++) {
s->vram_offset = vga_ram_offset;
s->vram_size = vga_ram_size;
s->ds = ds;
+ s->get_bpp = vga_get_bpp;
+ s->get_offsets = vga_get_offsets;
+ /* XXX: currently needed for display */
+ vga_state = s;
+}
+
+
+int vga_initialize(DisplayState *ds, uint8_t *vga_ram_base,
+ unsigned long vga_ram_offset, int vga_ram_size,
+ int is_pci)
+{
+ VGAState *s;
+
+ s = qemu_mallocz(sizeof(VGAState));
+ if (!s)
+ return -1;
+
+ vga_common_init(s, ds, vga_ram_base, vga_ram_offset, vga_ram_size);
register_savevm("vga", 0, 1, vga_save, vga_load, s);
available */
void vga_screen_dump(const char *filename)
{
- VGAState *s = &vga_state;
+ VGAState *s = vga_state;
DisplayState *saved_ds, ds1, *ds = &ds1;
/* XXX: this is a little hackish */
projects / qemu.git / blobdiff