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generic hardware cursor support 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@903 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-06 15:17:19 +00:00
parent a5082316e9
commit a8aa669ba4
3 changed files with 115 additions and 12 deletions
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32
hw/vga.c
View File

@ -852,14 +852,6 @@ static inline unsigned int rgb_to_pixel32(unsigned int r, unsigned int g, unsign
#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;
@ -1309,11 +1301,20 @@ static int vga_get_bpp(VGAState *s)
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)
{
@ -1400,7 +1401,9 @@ static void vga_draw_graphic(VGAState *s, int full_update)
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",
@ -1433,6 +1436,8 @@ static void vga_draw_graphic(VGAState *s, int full_update)
/* 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;
@ -1441,6 +1446,8 @@ static void vga_draw_graphic(VGAState *s, int full_update)
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 */
@ -1476,6 +1483,7 @@ static void vga_draw_graphic(VGAState *s, int full_update)
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)

27
hw/vga_int.h
View File

@ -72,6 +72,7 @@
#endif /* !CONFIG_BOCHS_VBE */
#define CH_ATTR_SIZE (160 * 100)
#define VGA_MAX_HEIGHT 1024
#define VGA_STATE_COMMON \
uint8_t *vram_ptr; \
@ -119,6 +120,10 @@
uint32_t cursor_offset; \
unsigned int (*rgb_to_pixel)(unsigned int r, \
unsigned int g, unsigned b); \
/* hardware mouse cursor support */ \
uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \
void (*cursor_invalidate)(struct VGAState *s); \
void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \
/* tell for each page if it has been updated since the last time */ \
uint32_t last_palette[256]; \
uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
@ -128,10 +133,32 @@ typedef struct VGAState {
VGA_STATE_COMMON
} VGAState;
static inline int c6_to_8(int v)
{
int b;
v &= 0x3f;
b = v & 1;
return (v << 2) | (b << 1) | b;
}
void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base,
unsigned long vga_ram_offset, int vga_ram_size);
uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);
void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);
void vga_invalidate_scanlines(VGAState *s, int y1, int y2);
void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1,
int poffset, int w,
unsigned int color0, unsigned int color1,
unsigned int color_xor);
void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1,
int poffset, int w,
unsigned int color0, unsigned int color1,
unsigned int color_xor);
void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1,
int poffset, int w,
unsigned int color0, unsigned int color1,
unsigned int color_xor);
extern const uint8_t sr_mask[8];
extern const uint8_t gr_mask[16];

68
hw/vga_template.h
View File

@ -434,6 +434,74 @@ static void glue(vga_draw_line32_, DEPTH)(VGAState *s1, uint8_t *d,
#endif
}
#if DEPTH != 15
void glue(vga_draw_cursor_line_, DEPTH)(uint8_t *d1,
const uint8_t *src1,
int poffset, int w,
unsigned int color0,
unsigned int color1,
unsigned int color_xor)
{
const uint8_t *plane0, *plane1;
int x, b0, b1;
uint8_t *d;
d = d1;
plane0 = src1;
plane1 = src1 + poffset;
for(x = 0; x < w; x++) {
b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
#if DEPTH == 8
switch(b0 | (b1 << 1)) {
case 0:
break;
case 1:
d[0] ^= color_xor;
break;
case 2:
d[0] = color0;
break;
case 3:
d[0] = color1;
break;
}
#elif DEPTH == 16
switch(b0 | (b1 << 1)) {
case 0:
break;
case 1:
((uint16_t *)d)[0] ^= color_xor;
break;
case 2:
((uint16_t *)d)[0] = color0;
break;
case 3:
((uint16_t *)d)[0] = color1;
break;
}
#elif DEPTH == 32
switch(b0 | (b1 << 1)) {
case 0:
break;
case 1:
((uint32_t *)d)[0] ^= color_xor;
break;
case 2:
((uint32_t *)d)[0] = color0;
break;
case 3:
((uint32_t *)d)[0] = color1;
break;
}
#else
#error unsupported depth
#endif
d += (DEPTH / 8);
}
}
#endif
#undef PUT_PIXEL2
#undef DEPTH
#undef BPP