#include "biosvar.h" // GET_BDA
#include "util.h" // memset_far
-#include "vgatables.h" // find_vga_entry
-
-// TODO
-// * extract hw code from framebuffer code
+#include "vgabios.h" // find_vga_entry
+#include "stdvga.h" // stdvga_grdc_write
/****************************************************************
scroll_pl4(struct vgamode_s *vmode_g, int nblines, int attr
, struct cursorpos ul, struct cursorpos lr)
{
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
- int stride = GET_BDA(video_cols);
+ int cheight = GET_GLOBAL(vmode_g->cheight);
+ int cwidth = 1;
+ int stride = GET_BDA(video_cols) * cwidth;
void *src_far, *dest_far;
if (nblines >= 0) {
- dest_far = (void*)(ul.y * cheight * stride + ul.x);
+ dest_far = (void*)(ul.y * cheight * stride + ul.x * cwidth);
src_far = dest_far + nblines * cheight * stride;
} else {
// Scroll down
nblines = -nblines;
- dest_far = (void*)(lr.y * cheight * stride + ul.x);
+ dest_far = (void*)(lr.y * cheight * stride + ul.x * cwidth);
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) {
- outw(0x0105, VGAREG_GRDC_ADDRESS);
- dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols, stride
- , (rows - nblines) * cheight);
+ stdvga_grdc_write(0x05, 0x01);
+ dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols * cwidth
+ , stride, (rows - nblines) * cheight);
}
if (attr < 0)
attr = 0;
- outw(0x0205, VGAREG_GRDC_ADDRESS);
- memset_stride(SEG_GRAPH, dest_far, attr, cols, stride, nblines * cheight);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
+ stdvga_grdc_write(0x05, 0x02);
+ memset_stride(SEG_GRAPH, dest_far, attr, cols * cwidth
+ , stride, nblines * cheight);
+ stdvga_grdc_write(0x05, 0x00);
}
static void
scroll_cga(struct vgamode_s *vmode_g, int nblines, int attr
, struct cursorpos ul, struct cursorpos lr)
{
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
- u8 bpp = GET_GLOBAL(vmode_g->pixbits);
- int stride = GET_BDA(video_cols) * bpp;
+ int cheight = GET_GLOBAL(vmode_g->cheight) / 2;
+ int cwidth = GET_GLOBAL(vmode_g->pixbits);
+ int stride = GET_BDA(video_cols) * cwidth;
void *src_far, *dest_far;
if (nblines >= 0) {
- dest_far = (void*)(ul.y * cheight * stride + ul.x * bpp);
+ dest_far = (void*)(ul.y * cheight * stride + ul.x * cwidth);
src_far = dest_far + nblines * cheight * stride;
} else {
// Scroll down
nblines = -nblines;
- dest_far = (void*)(lr.y * cheight * stride + ul.x * bpp);
+ dest_far = (void*)(lr.y * cheight * stride + ul.x * cwidth);
src_far = dest_far - nblines * cheight * stride;
stride = -stride;
}
- int cols = (lr.x - ul.x + 1) * bpp;
+ int cols = lr.x - ul.x + 1;
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);
+ memcpy_stride(SEG_CTEXT, dest_far+0x2000, src_far+0x2000, cols * cwidth
+ , stride, (rows - nblines) * cheight);
+ dest_far = memcpy_stride(SEG_CTEXT, dest_far, src_far, cols * cwidth
+ , stride, (rows - nblines) * cheight);
}
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);
+ memset_stride(SEG_CTEXT, dest_far + 0x2000, attr, cols * cwidth
+ , stride, nblines * cheight);
+ memset_stride(SEG_CTEXT, dest_far, attr, cols * cwidth
+ , stride, nblines * cheight);
+}
+
+static void
+scroll_lin(struct vgamode_s *vmode_g, int nblines, int attr
+ , struct cursorpos ul, struct cursorpos lr)
+{
+ int cheight = 8;
+ int cwidth = 8;
+ int stride = GET_BDA(video_cols) * cwidth;
+ void *src_far, *dest_far;
+ if (nblines >= 0) {
+ dest_far = (void*)(ul.y * cheight * stride + ul.x * cwidth);
+ src_far = dest_far + nblines * cheight * stride;
+ } else {
+ // Scroll down
+ nblines = -nblines;
+ dest_far = (void*)(lr.y * cheight * stride + ul.x * cwidth);
+ 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)
+ dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols * cwidth
+ , stride, (rows - nblines) * cheight);
+ if (attr < 0)
+ attr = 0;
+ memset_stride(SEG_GRAPH, dest_far, attr, cols * cwidth
+ , stride, nblines * cheight);
}
static void
scroll_text(struct vgamode_s *vmode_g, int nblines, int attr
, struct cursorpos ul, struct cursorpos lr)
{
+ int cheight = 1;
+ int cwidth = 2;
u16 nbrows = GET_BDA(video_rows) + 1;
u16 nbcols = GET_BDA(video_cols);
+ int stride = nbcols * cwidth;
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;
+ dest_far += ul.y * cheight * stride + ul.x * cwidth;
+ src_far = dest_far + nblines * cheight * stride;
} else {
// Scroll down
nblines = -nblines;
- dest_far += lr.y * stride + ul.x * 2;
- src_far = dest_far - nblines * stride;
+ dest_far += lr.y * cheight * stride + ul.x * cwidth;
+ src_far = dest_far - nblines * cheight * stride;
stride = -stride;
}
- int cols = (lr.x - ul.x + 1) * 2;
+ int cols = lr.x - ul.x + 1;
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));
+ dest_far = memcpy_stride(seg, dest_far, src_far, cols * cwidth
+ , stride, (rows - nblines) * cheight);
if (attr < 0)
attr = 0x07;
attr = (attr << 8) | ' ';
- memset16_stride(seg, dest_far, attr, cols, stride, nblines);
+ memset16_stride(seg, dest_far, attr, cols * cwidth
+ , stride, nblines * cheight);
}
void
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);
+ case LINEAR8:
+ scroll_lin(vmode_g, nblines, attr, ul, lr);
break;
- default: {
- 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 (cp.x >= nbcols)
return;
- struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam);
- u8 cheight = GET_GLOBAL(vparam_g->cheight);
+ u8 cheight = GET_GLOBAL(vmode_g->cheight);
u8 *fdata_g;
switch (cheight) {
case 14:
}
u16 addr = cp.x + cp.y * cheight * nbcols;
u16 src = ca.car * cheight;
- outw(0x0f02, VGAREG_SEQU_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
+ stdvga_sequ_write(0x02, 0x0f);
+ stdvga_grdc_write(0x05, 0x02);
if (ca.attr & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
+ stdvga_grdc_write(0x03, 0x18);
else
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ stdvga_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);
- GET_FARVAR(SEG_GRAPH, *dest_far);
+ stdvga_grdc_write(0x08, mask);
+ GET_FARVAR(SEG_GRAPH, *(volatile u8*)dest_far);
if (GET_GLOBAL(fdata_g[src + i]) & mask)
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);
+ stdvga_grdc_write(0x08, 0xff);
+ stdvga_grdc_write(0x05, 0x00);
+ stdvga_grdc_write(0x03, 0x00);
}
static void
case PLANAR1:
addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
mask = 0x80 >> (x & 0x07);
- outw((mask << 8) | 0x08, VGAREG_GRDC_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
- data = GET_FARVAR(SEG_GRAPH, *addr_far);
+ stdvga_grdc_write(0x08, mask);
+ stdvga_grdc_write(0x05, 0x02);
+ GET_FARVAR(SEG_GRAPH, *(volatile u8*)addr_far);
if (color & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
+ stdvga_grdc_write(0x03, 0x18);
SET_FARVAR(SEG_GRAPH, *addr_far, color);
- outw(0xff08, VGAREG_GRDC_ADDRESS);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ stdvga_grdc_write(0x08, 0xff);
+ stdvga_grdc_write(0x05, 0x00);
+ stdvga_grdc_write(0x03, 0x00);
break;
case CGA:
if (GET_GLOBAL(vmode_g->pixbits) == 2)
mask = 0x80 >> (x & 0x07);
attr = 0x00;
for (i = 0; i < 4; i++) {
- outw((i << 8) | 0x04, VGAREG_GRDC_ADDRESS);
+ stdvga_grdc_write(0x04, i);
data = GET_FARVAR(SEG_GRAPH, *addr_far) & mask;
if (data > 0)
attr |= (0x01 << i);
}
return attr;
}
-
-
-/****************************************************************
- * Font loading
- ****************************************************************/
-
-void
-vgafb_load_font(u16 seg, void *src_far, u16 count
- , u16 start, u8 destflags, u8 fontsize)
-{
- get_font_access();
- u16 blockaddr = ((destflags & 0x03) << 14) + ((destflags & 0x04) << 11);
- void *dest_far = (void*)(blockaddr + start*32);
- u16 i;
- 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