#include "util.h" // memset_far
#include "vgatables.h" // find_vga_entry
-// XXX
-inline void
-memcpy16_far(u16 d_seg, void *d_far, u16 s_seg, const void *s_far, size_t len)
-{
- memcpy_far(d_seg, d_far, s_seg, s_far, len);
-}
-
/****************************************************************
* Screen scrolling
****************************************************************/
-static void
-vgamem_copy_pl4(u8 xstart, u8 ysrc, u8 ydest, u8 cols, u8 nbcols,
- u8 cheight)
+static inline void *
+memcpy_stride(u16 seg, void *dst, void *src, int copylen, int stride, int lines)
{
- u16 src = ysrc * cheight * nbcols + xstart;
- u16 dest = ydest * cheight * nbcols + xstart;
- outw(0x0105, VGAREG_GRDC_ADDRESS);
- u8 i;
- for (i = 0; i < cheight; i++)
- memcpy_far(SEG_GRAPH, (void*)(dest + i * nbcols)
- , SEG_GRAPH, (void*)(src + i * nbcols), cols);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
+ for (; lines; lines--, dst+=stride, src+=stride)
+ memcpy_far(seg, dst, seg, src, copylen);
+ return dst;
}
-static void
-vgamem_fill_pl4(u8 xstart, u8 ystart, u8 cols, u8 nbcols, u8 cheight,
- u8 attr)
+static inline void
+memset_stride(u16 seg, void *dst, u8 val, int setlen, int stride, int lines)
{
- u16 dest = ystart * cheight * nbcols + xstart;
- outw(0x0205, VGAREG_GRDC_ADDRESS);
- u8 i;
- for (i = 0; i < cheight; i++)
- memset_far(SEG_GRAPH, (void*)(dest + i * nbcols), attr, cols);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
+ for (; lines; lines--, dst+=stride)
+ memset_far(seg, dst, val, setlen);
}
-static void
-vgamem_copy_cga(u8 xstart, u8 ysrc, u8 ydest, u8 cols, u8 nbcols,
- u8 cheight)
+static inline void
+memset16_stride(u16 seg, void *dst, u16 val, int setlen, int stride, int lines)
{
- u16 src = ((ysrc * cheight * nbcols) >> 1) + xstart;
- u16 dest = ((ydest * cheight * nbcols) >> 1) + xstart;
- u8 i;
- for (i = 0; i < cheight; i++)
- if (i & 1)
- memcpy_far(SEG_CTEXT, (void*)(0x2000 + dest + (i >> 1) * nbcols)
- , SEG_CTEXT, (void*)(0x2000 + src + (i >> 1) * nbcols)
- , cols);
- else
- memcpy_far(SEG_CTEXT, (void*)(dest + (i >> 1) * nbcols)
- , SEG_CTEXT, (void*)(src + (i >> 1) * nbcols), cols);
+ for (; lines; lines--, dst+=stride)
+ memset16_far(seg, dst, val, setlen);
}
static void
-vgamem_fill_cga(u8 xstart, u8 ystart, u8 cols, u8 nbcols, u8 cheight,
- u8 attr)
+scroll_pl4(struct vgamode_s *vmode_g, int nblines, int attr
+ , struct cursorpos ul, struct cursorpos lr)
{
- u16 dest = ((ystart * cheight * nbcols) >> 1) + xstart;
- u8 i;
- for (i = 0; i < cheight; i++)
- if (i & 1)
- memset_far(SEG_CTEXT, (void*)(0x2000 + dest + (i >> 1) * nbcols)
- , attr, cols);
- else
- memset_far(SEG_CTEXT, (void*)(dest + (i >> 1) * nbcols), attr, cols);
+ u8 cheight = GET_GLOBAL(vmode_g->cheight);
+ int stride = GET_BDA(video_cols);
+ void *src_far, *dest_far;
+ if (nblines >= 0) {
+ dest_far = (void*)(ul.y * cheight * stride + ul.x);
+ src_far = dest_far + nblines * cheight * stride;
+ } else {
+ // Scroll down
+ nblines = -nblines;
+ dest_far = (void*)(lr.y * cheight * stride + ul.x);
+ src_far = dest_far - nblines * cheight * stride;
+ stride = -stride;
+ }
+ int cols = lr.x - ul.x + 1;
+ int rows = lr.y - ul.y + 1;
+ if (nblines < rows) {
+ vgahw_grdc_write(0x05, 0x01);
+ dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols, stride
+ , (rows - nblines) * cheight);
+ }
+ if (attr < 0)
+ attr = 0;
+ vgahw_grdc_write(0x05, 0x02);
+ memset_stride(SEG_GRAPH, dest_far, attr, cols, stride, nblines * cheight);
+ vgahw_grdc_write(0x05, 0x00);
}
-void
-clear_screen(struct vgamode_s *vmode_g)
+static void
+scroll_cga(struct vgamode_s *vmode_g, int nblines, int attr
+ , struct cursorpos ul, struct cursorpos lr)
{
- if (GET_GLOBAL(vmode_g->class) == TEXT) {
- memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0720, 32*1024);
- return;
+ u8 cheight = GET_GLOBAL(vmode_g->cheight);
+ u8 bpp = GET_GLOBAL(vmode_g->pixbits);
+ int stride = GET_BDA(video_cols) * bpp;
+ void *src_far, *dest_far;
+ if (nblines >= 0) {
+ dest_far = (void*)(ul.y * cheight * stride + ul.x * bpp);
+ src_far = dest_far + nblines * cheight * stride;
+ } else {
+ // Scroll down
+ nblines = -nblines;
+ dest_far = (void*)(lr.y * cheight * stride + ul.x * bpp);
+ src_far = dest_far - nblines * cheight * stride;
+ stride = -stride;
}
- if (GET_GLOBAL(vmode_g->svgamode) < 0x0d) {
- memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 32*1024);
- return;
+ int cols = (lr.x - ul.x + 1) * bpp;
+ int rows = lr.y - ul.y + 1;
+ if (nblines < rows) {
+ memcpy_stride(SEG_CTEXT, dest_far + 0x2000, src_far + 0x2000, cols
+ , stride, (rows - nblines) * cheight / 2);
+ dest_far = memcpy_stride(SEG_CTEXT, dest_far, src_far, cols
+ , stride, (rows - nblines) * cheight / 2);
}
- outb(0x02, VGAREG_SEQU_ADDRESS);
- u8 mmask = inb(VGAREG_SEQU_DATA);
- outb(0x0f, VGAREG_SEQU_DATA); // all planes
- memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 64*1024);
- outb(mmask, VGAREG_SEQU_DATA);
+ if (attr < 0)
+ attr = 0;
+ memset_stride(SEG_CTEXT, dest_far + 0x2000, attr, cols
+ , stride, nblines * cheight / 2);
+ memset_stride(SEG_CTEXT, dest_far, attr, cols
+ , stride, nblines * cheight / 2);
}
-void
-biosfn_scroll(u8 nblines, u8 attr, u8 rul, u8 cul, u8 rlr, u8 clr, u8 page,
- u8 dir)
+static void
+scroll_text(struct vgamode_s *vmode_g, int nblines, int attr
+ , struct cursorpos ul, struct cursorpos lr)
{
- // page == 0xFF if current
- if (rul > rlr)
- return;
- if (cul > clr)
- return;
+ u16 nbrows = GET_BDA(video_rows) + 1;
+ u16 nbcols = GET_BDA(video_cols);
+ void *src_far, *dest_far = (void*)SCREEN_MEM_START(nbcols, nbrows, ul.page);
+ int stride = nbcols * 2;
+ if (nblines >= 0) {
+ dest_far += ul.y * stride + ul.x * 2;
+ src_far = dest_far + nblines * stride;
+ } else {
+ // Scroll down
+ nblines = -nblines;
+ dest_far += lr.y * stride + ul.x * 2;
+ src_far = dest_far - nblines * stride;
+ stride = -stride;
+ }
+ int cols = (lr.x - ul.x + 1) * 2;
+ int rows = lr.y - ul.y + 1;
+ u16 seg = GET_GLOBAL(vmode_g->sstart);
+ if (nblines < rows)
+ dest_far = memcpy_stride(seg, dest_far, src_far, cols, stride
+ , (rows - nblines));
+ if (attr < 0)
+ attr = 0x07;
+ attr = (attr << 8) | ' ';
+ memset16_stride(seg, dest_far, attr, cols, stride, nblines);
+}
+void
+vgafb_scroll(int nblines, int attr, struct cursorpos ul, struct cursorpos lr)
+{
// Get the mode
struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
if (!vmode_g)
return;
- // Get the dimensions
- u16 nbrows = GET_BDA(video_rows) + 1;
- u16 nbcols = GET_BDA(video_cols);
-
- // Get the current page
- if (page == 0xFF)
- page = GET_BDA(video_page);
-
- if (rlr >= nbrows)
- rlr = nbrows - 1;
- if (clr >= nbcols)
- clr = nbcols - 1;
- if (nblines > nbrows)
- nblines = 0;
- u8 cols = clr - cul + 1;
-
- if (GET_GLOBAL(vmode_g->class) == TEXT) {
- // Compute the address
- void *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, page));
- dprintf(3, "Scroll, address %p (%d %d %02x)\n"
- , address_far, nbrows, nbcols, page);
-
- if (nblines == 0 && rul == 0 && cul == 0 && rlr == nbrows - 1
- && clr == nbcols - 1) {
- memset16_far(GET_GLOBAL(vmode_g->sstart), address_far
- , (u16)attr * 0x100 + ' ', nbrows * nbcols * 2);
- } else { // if Scroll up
- if (dir == SCROLL_UP) {
- u16 i;
- for (i = rul; i <= rlr; i++)
- if ((i + nblines > rlr) || (nblines == 0))
- memset16_far(GET_GLOBAL(vmode_g->sstart)
- , address_far + (i * nbcols + cul) * 2
- , (u16)attr * 0x100 + ' ', cols * 2);
- else
- memcpy16_far(GET_GLOBAL(vmode_g->sstart)
- , address_far + (i * nbcols + cul) * 2
- , GET_GLOBAL(vmode_g->sstart)
- , (void*)(((i + nblines) * nbcols + cul) * 2)
- , cols * 2);
- } else {
- u16 i;
- for (i = rlr; i >= rul; i--) {
- if ((i < rul + nblines) || (nblines == 0))
- memset16_far(GET_GLOBAL(vmode_g->sstart)
- , address_far + (i * nbcols + cul) * 2
- , (u16)attr * 0x100 + ' ', cols * 2);
- else
- memcpy16_far(GET_GLOBAL(vmode_g->sstart)
- , address_far + (i * nbcols + cul) * 2
- , GET_GLOBAL(vmode_g->sstart)
- , (void*)(((i - nblines) * nbcols + cul) * 2)
- , cols * 2);
- if (i > rlr)
- break;
- }
- }
- }
- return;
- }
-
// FIXME gfx mode not complete
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
switch (GET_GLOBAL(vmode_g->memmodel)) {
+ case CTEXT:
+ case MTEXT:
+ scroll_text(vmode_g, nblines, attr, ul, lr);
+ break;
case PLANAR4:
case PLANAR1:
- if (nblines == 0 && rul == 0 && cul == 0 && rlr == nbrows - 1
- && clr == nbcols - 1) {
- outw(0x0205, VGAREG_GRDC_ADDRESS);
- memset_far(GET_GLOBAL(vmode_g->sstart), 0, attr,
- nbrows * nbcols * cheight);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- } else { // if Scroll up
- if (dir == SCROLL_UP) {
- u16 i;
- for (i = rul; i <= rlr; i++)
- if ((i + nblines > rlr) || (nblines == 0))
- vgamem_fill_pl4(cul, i, cols, nbcols, cheight,
- attr);
- else
- vgamem_copy_pl4(cul, i + nblines, i, cols,
- nbcols, cheight);
- } else {
- u16 i;
- for (i = rlr; i >= rul; i--) {
- if ((i < rul + nblines) || (nblines == 0))
- vgamem_fill_pl4(cul, i, cols, nbcols, cheight,
- attr);
- else
- vgamem_copy_pl4(cul, i, i - nblines, cols,
- nbcols, cheight);
- if (i > rlr)
- break;
- }
- }
- }
+ scroll_pl4(vmode_g, nblines, attr, ul, lr);
break;
- case CGA: {
- u8 bpp = GET_GLOBAL(vmode_g->pixbits);
- if (nblines == 0 && rul == 0 && cul == 0 && rlr == nbrows - 1
- && clr == nbcols - 1) {
- memset_far(GET_GLOBAL(vmode_g->sstart), 0, attr,
- nbrows * nbcols * cheight * bpp);
- } else {
- if (bpp == 2) {
- cul <<= 1;
- cols <<= 1;
- nbcols <<= 1;
- }
- // if Scroll up
- if (dir == SCROLL_UP) {
- u16 i;
- for (i = rul; i <= rlr; i++)
- if ((i + nblines > rlr) || (nblines == 0))
- vgamem_fill_cga(cul, i, cols, nbcols, cheight,
- attr);
- else
- vgamem_copy_cga(cul, i + nblines, i, cols,
- nbcols, cheight);
- } else {
- u16 i;
- for (i = rlr; i >= rul; i--) {
- if ((i < rul + nblines) || (nblines == 0))
- vgamem_fill_cga(cul, i, cols, nbcols, cheight,
- attr);
- else
- vgamem_copy_cga(cul, i, i - nblines, cols,
- nbcols, cheight);
- if (i > rlr)
- break;
- }
- }
- }
+ case CGA:
+ scroll_cga(vmode_g, nblines, attr, ul, lr);
break;
- }
default:
dprintf(1, "Scroll in graphics mode\n");
}
}
+void
+clear_screen(struct vgamode_s *vmode_g)
+{
+ switch (GET_GLOBAL(vmode_g->memmodel)) {
+ case CTEXT:
+ case MTEXT:
+ memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0720, 32*1024);
+ break;
+ case CGA:
+ memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 32*1024);
+ break;
+ default:
+ // XXX - old code gets/sets/restores sequ register 2 to 0xf -
+ // but it should always be 0xf anyway.
+ memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 64*1024);
+ }
+}
+
/****************************************************************
* Read/write characters to screen
****************************************************************/
static void
-write_gfx_char_pl4(u8 car, u8 attr, u8 xcurs, u8 ycurs, u8 nbcols,
- u8 cheight)
+write_gfx_char_pl4(struct vgamode_s *vmode_g
+ , struct cursorpos cp, struct carattr ca)
{
+ u16 nbcols = GET_BDA(video_cols);
+ if (cp.x >= nbcols)
+ return;
+
+ u8 cheight = GET_GLOBAL(vmode_g->cheight);
u8 *fdata_g;
switch (cheight) {
case 14:
default:
fdata_g = vgafont8;
}
- u16 addr = xcurs + ycurs * cheight * nbcols;
- u16 src = car * cheight;
- outw(0x0f02, VGAREG_SEQU_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
- if (attr & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
+ u16 addr = cp.x + cp.y * cheight * nbcols;
+ u16 src = ca.car * cheight;
+ vgahw_sequ_write(0x02, 0x0f);
+ vgahw_grdc_write(0x05, 0x02);
+ if (ca.attr & 0x80)
+ vgahw_grdc_write(0x03, 0x18);
else
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x03, 0x00);
u8 i;
for (i = 0; i < cheight; i++) {
u8 *dest_far = (void*)(addr + i * nbcols);
u8 j;
for (j = 0; j < 8; j++) {
u8 mask = 0x80 >> j;
- outw((mask << 8) | 0x08, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, mask);
GET_FARVAR(SEG_GRAPH, *dest_far);
if (GET_GLOBAL(fdata_g[src + i]) & mask)
- SET_FARVAR(SEG_GRAPH, *dest_far, attr & 0x0f);
+ SET_FARVAR(SEG_GRAPH, *dest_far, ca.attr & 0x0f);
else
SET_FARVAR(SEG_GRAPH, *dest_far, 0x00);
}
}
- outw(0xff08, VGAREG_GRDC_ADDRESS);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, 0xff);
+ vgahw_grdc_write(0x05, 0x00);
+ vgahw_grdc_write(0x03, 0x00);
}
static void
-write_gfx_char_cga(u8 car, u8 attr, u8 xcurs, u8 ycurs, u8 nbcols, u8 bpp)
+write_gfx_char_cga(struct vgamode_s *vmode_g
+ , struct cursorpos cp, struct carattr ca)
{
+ u16 nbcols = GET_BDA(video_cols);
+ if (cp.x >= nbcols)
+ return;
+
u8 *fdata_g = vgafont8;
- u16 addr = (xcurs * bpp) + ycurs * 320;
- u16 src = car * 8;
+ u8 bpp = GET_GLOBAL(vmode_g->pixbits);
+ u16 addr = (cp.x * bpp) + cp.y * 320;
+ u16 src = ca.car * 8;
u8 i;
for (i = 0; i < 8; i++) {
u8 *dest_far = (void*)(addr + (i >> 1) * 80);
u8 mask = 0x80;
if (bpp == 1) {
u8 data = 0;
- if (attr & 0x80)
+ if (ca.attr & 0x80)
data = GET_FARVAR(SEG_CTEXT, *dest_far);
u8 j;
for (j = 0; j < 8; j++) {
if (GET_GLOBAL(fdata_g[src + i]) & mask) {
- if (attr & 0x80)
- data ^= (attr & 0x01) << (7 - j);
+ if (ca.attr & 0x80)
+ data ^= (ca.attr & 0x01) << (7 - j);
else
- data |= (attr & 0x01) << (7 - j);
+ data |= (ca.attr & 0x01) << (7 - j);
}
mask >>= 1;
}
} else {
while (mask > 0) {
u8 data = 0;
- if (attr & 0x80)
+ if (ca.attr & 0x80)
data = GET_FARVAR(SEG_CTEXT, *dest_far);
u8 j;
for (j = 0; j < 4; j++) {
if (GET_GLOBAL(fdata_g[src + i]) & mask) {
- if (attr & 0x80)
- data ^= (attr & 0x03) << ((3 - j) * 2);
+ if (ca.attr & 0x80)
+ data ^= (ca.attr & 0x03) << ((3 - j) * 2);
else
- data |= (attr & 0x03) << ((3 - j) * 2);
+ data |= (ca.attr & 0x03) << ((3 - j) * 2);
}
mask >>= 1;
}
}
static void
-write_gfx_char_lin(u8 car, u8 attr, u8 xcurs, u8 ycurs, u8 nbcols)
+write_gfx_char_lin(struct vgamode_s *vmode_g
+ , struct cursorpos cp, struct carattr ca)
{
+ // Get the dimensions
+ u16 nbcols = GET_BDA(video_cols);
+ if (cp.x >= nbcols)
+ return;
+
u8 *fdata_g = vgafont8;
- u16 addr = xcurs * 8 + ycurs * nbcols * 64;
- u16 src = car * 8;
+ u16 addr = cp.x * 8 + cp.y * nbcols * 64;
+ u16 src = ca.car * 8;
u8 i;
for (i = 0; i < 8; i++) {
u8 *dest_far = (void*)(addr + i * nbcols * 8);
for (j = 0; j < 8; j++) {
u8 data = 0x00;
if (GET_GLOBAL(fdata_g[src + i]) & mask)
- data = attr;
+ data = ca.attr;
SET_FARVAR(SEG_GRAPH, dest_far[j], data);
mask >>= 1;
}
}
}
-void
-biosfn_write_char_attr(u8 car, u8 page, u8 attr, u16 count)
+static void
+write_text_char(struct vgamode_s *vmode_g
+ , struct cursorpos cp, struct carattr ca)
{
- // Get the mode
- struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
- if (!vmode_g)
- return;
-
- // Get the cursor pos for the page
- u16 cursor = biosfn_get_cursor_pos(page);
- u8 xcurs = cursor & 0x00ff;
- u8 ycurs = (cursor & 0xff00) >> 8;
-
// Get the dimensions
u16 nbrows = GET_BDA(video_rows) + 1;
u16 nbcols = GET_BDA(video_cols);
- if (GET_GLOBAL(vmode_g->class) == TEXT) {
- // Compute the address
- void *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, page)
- + (xcurs + ycurs * nbcols) * 2);
+ // Compute the address
+ void *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, cp.page)
+ + (cp.x + cp.y * nbcols) * 2);
- u16 dummy = ((u16)attr << 8) + car;
- memset16_far(GET_GLOBAL(vmode_g->sstart), address_far, dummy, count * 2);
- return;
- }
-
- // FIXME gfx mode not complete
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
- u8 bpp = GET_GLOBAL(vmode_g->pixbits);
- while ((count-- > 0) && (xcurs < nbcols)) {
- switch (GET_GLOBAL(vmode_g->memmodel)) {
- case PLANAR4:
- case PLANAR1:
- write_gfx_char_pl4(car, attr, xcurs, ycurs, nbcols, cheight);
- break;
- case CGA:
- write_gfx_char_cga(car, attr, xcurs, ycurs, nbcols, bpp);
- break;
- case LINEAR8:
- write_gfx_char_lin(car, attr, xcurs, ycurs, nbcols);
- break;
- }
- xcurs++;
+ if (ca.use_attr) {
+ u16 dummy = (ca.attr << 8) | ca.car;
+ SET_FARVAR(GET_GLOBAL(vmode_g->sstart), *(u16*)address_far, dummy);
+ } else {
+ SET_FARVAR(GET_GLOBAL(vmode_g->sstart), *(u8*)address_far, ca.car);
}
}
void
-biosfn_write_char_only(u8 car, u8 page, u8 attr, u16 count)
+vgafb_write_char(struct cursorpos cp, struct carattr ca)
{
// Get the mode
struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
if (!vmode_g)
return;
- // Get the cursor pos for the page
- u16 cursor = biosfn_get_cursor_pos(page);
- u8 xcurs = cursor & 0x00ff;
- u8 ycurs = (cursor & 0xff00) >> 8;
-
- // Get the dimensions
- u16 nbrows = GET_BDA(video_rows) + 1;
- u16 nbcols = GET_BDA(video_cols);
-
- if (GET_GLOBAL(vmode_g->class) == TEXT) {
- // Compute the address
- u8 *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, page)
- + (xcurs + ycurs * nbcols) * 2);
- while (count-- > 0) {
- SET_FARVAR(GET_GLOBAL(vmode_g->sstart), *address_far, car);
- address_far += 2;
- }
- return;
- }
-
// FIXME gfx mode not complete
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
- u8 bpp = GET_GLOBAL(vmode_g->pixbits);
- while ((count-- > 0) && (xcurs < nbcols)) {
- switch (GET_GLOBAL(vmode_g->memmodel)) {
- case PLANAR4:
- case PLANAR1:
- write_gfx_char_pl4(car, attr, xcurs, ycurs, nbcols, cheight);
- break;
- case CGA:
- write_gfx_char_cga(car, attr, xcurs, ycurs, nbcols, bpp);
- break;
- case LINEAR8:
- write_gfx_char_lin(car, attr, xcurs, ycurs, nbcols);
- break;
- }
- xcurs++;
+ switch (GET_GLOBAL(vmode_g->memmodel)) {
+ case CTEXT:
+ case MTEXT:
+ write_text_char(vmode_g, cp, ca);
+ break;
+ case PLANAR4:
+ case PLANAR1:
+ write_gfx_char_pl4(vmode_g, cp, ca);
+ break;
+ case CGA:
+ write_gfx_char_cga(vmode_g, cp, ca);
+ break;
+ case LINEAR8:
+ write_gfx_char_lin(vmode_g, cp, ca);
+ break;
}
}
-void
-biosfn_read_char_attr(u8 page, u16 *car)
+struct carattr
+vgafb_read_char(struct cursorpos cp)
{
// Get the mode
struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
if (!vmode_g)
- return;
+ goto fail;
- // Get the cursor pos for the page
- u16 cursor = biosfn_get_cursor_pos(page);
- u8 xcurs = cursor & 0x00ff;
- u8 ycurs = (cursor & 0xff00) >> 8;
+ if (!(GET_GLOBAL(vmode_g->memmodel) & TEXT)) {
+ // FIXME gfx mode
+ dprintf(1, "Read char in graphics mode\n");
+ goto fail;
+ }
// Get the dimensions
u16 nbrows = GET_BDA(video_rows) + 1;
u16 nbcols = GET_BDA(video_cols);
- if (GET_GLOBAL(vmode_g->class) == TEXT) {
- // Compute the address
- u16 *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, page)
- + (xcurs + ycurs * nbcols) * 2);
+ // Compute the address
+ u16 *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, cp.page)
+ + (cp.x + cp.y * nbcols) * 2);
+ u16 v = GET_FARVAR(GET_GLOBAL(vmode_g->sstart), *address_far);
+ struct carattr ca = {v, v>>8, 0};
+ return ca;
- *car = GET_FARVAR(GET_GLOBAL(vmode_g->sstart), *address_far);
- } else {
- // FIXME gfx mode
- dprintf(1, "Read char in graphics mode\n");
- }
+fail: ;
+ struct carattr ca2 = {0, 0, 0};
+ return ca2;
}
****************************************************************/
void
-biosfn_write_pixel(u8 BH, u8 AL, u16 CX, u16 DX)
+vgafb_write_pixel(u8 color, u16 x, u16 y)
{
// Get the mode
struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
if (!vmode_g)
return;
- if (GET_GLOBAL(vmode_g->class) == TEXT)
+ if (GET_GLOBAL(vmode_g->memmodel) & TEXT)
return;
u8 *addr_far, mask, attr, data;
switch (GET_GLOBAL(vmode_g->memmodel)) {
case PLANAR4:
case PLANAR1:
- addr_far = (void*)(CX / 8 + DX * GET_BDA(video_cols));
- mask = 0x80 >> (CX & 0x07);
- outw((mask << 8) | 0x08, VGAREG_GRDC_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
+ addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
+ mask = 0x80 >> (x & 0x07);
+ vgahw_grdc_write(0x08, mask);
+ vgahw_grdc_write(0x05, 0x02);
data = GET_FARVAR(SEG_GRAPH, *addr_far);
- if (AL & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
- SET_FARVAR(SEG_GRAPH, *addr_far, AL);
- outw(0xff08, VGAREG_GRDC_ADDRESS);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ if (color & 0x80)
+ vgahw_grdc_write(0x03, 0x18);
+ SET_FARVAR(SEG_GRAPH, *addr_far, color);
+ vgahw_grdc_write(0x08, 0xff);
+ vgahw_grdc_write(0x05, 0x00);
+ vgahw_grdc_write(0x03, 0x00);
break;
case CGA:
if (GET_GLOBAL(vmode_g->pixbits) == 2)
- addr_far = (void*)((CX >> 2) + (DX >> 1) * 80);
+ addr_far = (void*)((x >> 2) + (y >> 1) * 80);
else
- addr_far = (void*)((CX >> 3) + (DX >> 1) * 80);
- if (DX & 1)
+ addr_far = (void*)((x >> 3) + (y >> 1) * 80);
+ if (y & 1)
addr_far += 0x2000;
data = GET_FARVAR(SEG_CTEXT, *addr_far);
if (GET_GLOBAL(vmode_g->pixbits) == 2) {
- attr = (AL & 0x03) << ((3 - (CX & 0x03)) * 2);
- mask = 0x03 << ((3 - (CX & 0x03)) * 2);
+ attr = (color & 0x03) << ((3 - (x & 0x03)) * 2);
+ mask = 0x03 << ((3 - (x & 0x03)) * 2);
} else {
- attr = (AL & 0x01) << (7 - (CX & 0x07));
- mask = 0x01 << (7 - (CX & 0x07));
+ attr = (color & 0x01) << (7 - (x & 0x07));
+ mask = 0x01 << (7 - (x & 0x07));
}
- if (AL & 0x80) {
+ if (color & 0x80) {
data ^= attr;
} else {
data &= ~mask;
SET_FARVAR(SEG_CTEXT, *addr_far, data);
break;
case LINEAR8:
- addr_far = (void*)(CX + DX * (GET_BDA(video_cols) * 8));
- SET_FARVAR(SEG_GRAPH, *addr_far, AL);
+ addr_far = (void*)(x + y * (GET_BDA(video_cols) * 8));
+ SET_FARVAR(SEG_GRAPH, *addr_far, color);
break;
}
}
-void
-biosfn_read_pixel(u8 BH, u16 CX, u16 DX, u16 *AX)
+u8
+vgafb_read_pixel(u16 x, u16 y)
{
// Get the mode
struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
if (!vmode_g)
- return;
- if (GET_GLOBAL(vmode_g->class) == TEXT)
- return;
+ return 0;
+ if (GET_GLOBAL(vmode_g->memmodel) & TEXT)
+ return 0;
u8 *addr_far, mask, attr=0, data, i;
switch (GET_GLOBAL(vmode_g->memmodel)) {
case PLANAR4:
case PLANAR1:
- addr_far = (void*)(CX / 8 + DX * GET_BDA(video_cols));
- mask = 0x80 >> (CX & 0x07);
+ addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
+ mask = 0x80 >> (x & 0x07);
attr = 0x00;
for (i = 0; i < 4; i++) {
- outw((i << 8) | 0x04, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x04, i);
data = GET_FARVAR(SEG_GRAPH, *addr_far) & mask;
if (data > 0)
attr |= (0x01 << i);
}
break;
case CGA:
- addr_far = (void*)((CX >> 2) + (DX >> 1) * 80);
- if (DX & 1)
+ addr_far = (void*)((x >> 2) + (y >> 1) * 80);
+ if (y & 1)
addr_far += 0x2000;
data = GET_FARVAR(SEG_CTEXT, *addr_far);
if (GET_GLOBAL(vmode_g->pixbits) == 2)
- attr = (data >> ((3 - (CX & 0x03)) * 2)) & 0x03;
+ attr = (data >> ((3 - (x & 0x03)) * 2)) & 0x03;
else
- attr = (data >> (7 - (CX & 0x07))) & 0x01;
+ attr = (data >> (7 - (x & 0x07))) & 0x01;
break;
case LINEAR8:
- addr_far = (void*)(CX + DX * (GET_BDA(video_cols) * 8));
+ addr_far = (void*)(x + y * (GET_BDA(video_cols) * 8));
attr = GET_FARVAR(SEG_GRAPH, *addr_far);
break;
}
- *AX = (*AX & 0xff00) | attr;
+ return attr;
}
****************************************************************/
void
-biosfn_load_text_user_pat(u16 ES, u16 BP, u16 CX, u16 DX, u8 BL, u8 BH)
-{
- get_font_access();
- u16 blockaddr = ((BL & 0x03) << 14) + ((BL & 0x04) << 11);
- u16 i;
- for (i = 0; i < CX; i++) {
- void *src_far = (void*)(BP + i * BH);
- void *dest_far = (void*)(blockaddr + (DX + i) * 32);
- memcpy_far(SEG_GRAPH, dest_far, ES, src_far, BH);
- }
- release_font_access();
-}
-
-void
-biosfn_load_text_8_14_pat(u8 BL)
-{
- get_font_access();
- u16 blockaddr = ((BL & 0x03) << 14) + ((BL & 0x04) << 11);
- u16 i;
- for (i = 0; i < 0x100; i++) {
- u16 src = i * 14;
- void *dest_far = (void*)(blockaddr + i * 32);
- memcpy_far(SEG_GRAPH, dest_far, get_global_seg(), &vgafont14[src], 14);
- }
- release_font_access();
-}
-
-void
-biosfn_load_text_8_8_pat(u8 BL)
-{
- get_font_access();
- u16 blockaddr = ((BL & 0x03) << 14) + ((BL & 0x04) << 11);
- u16 i;
- for (i = 0; i < 0x100; i++) {
- u16 src = i * 8;
- void *dest_far = (void*)(blockaddr + i * 32);
- memcpy_far(SEG_GRAPH, dest_far, get_global_seg(), &vgafont8[src], 8);
- }
- release_font_access();
-}
-
-void
-biosfn_load_text_8_16_pat(u8 BL)
+vgafb_load_font(u16 seg, void *src_far, u16 count
+ , u16 start, u8 destflags, u8 fontsize)
{
get_font_access();
- u16 blockaddr = ((BL & 0x03) << 14) + ((BL & 0x04) << 11);
+ u16 blockaddr = ((destflags & 0x03) << 14) + ((destflags & 0x04) << 11);
+ void *dest_far = (void*)(blockaddr + start*32);
u16 i;
- for (i = 0; i < 0x100; i++) {
- u16 src = i * 16;
- void *dest_far = (void*)(blockaddr + i * 32);
- memcpy_far(SEG_GRAPH, dest_far, get_global_seg(), &vgafont16[src], 16);
- }
+ for (i = 0; i < count; i++)
+ memcpy_far(SEG_GRAPH, dest_far + i*32
+ , seg, src_far + i*fontsize, fontsize);
release_font_access();
}
projects / seabios.git / blobdiff