#include "biosvar.h" // GET_BDA
#include "util.h" // memset_far
-#include "vgabios.h" // find_vga_entry
-#include "stdvga.h" // stdvga_grdc_write
+#include "stdvga.h" // stdvga_planar4_plane
/****************************************************************
src_far = dest_far - nblines * cheight * stride;
stride = -stride;
}
+ if (attr < 0)
+ attr = 0;
int cols = lr.x - ul.x + 1;
int rows = lr.y - ul.y + 1;
- if (nblines < rows) {
- stdvga_grdc_write(0x05, 0x01);
- dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols * cwidth
+ int i;
+ for (i=0; i<4; i++) {
+ stdvga_planar4_plane(i);
+ void *dest = dest_far;
+ if (nblines < rows)
+ dest = memcpy_stride(SEG_GRAPH, dest, src_far, cols * cwidth
, stride, (rows - nblines) * cheight);
+ u8 pixels = (attr & (1<<i)) ? 0xff : 0x00;
+ memset_stride(SEG_GRAPH, dest, pixels, cols * cwidth
+ , stride, nblines * cheight);
}
- if (attr < 0)
- attr = 0;
- stdvga_grdc_write(0x05, 0x02);
- memset_stride(SEG_GRAPH, dest_far, attr, cols * cwidth
- , stride, nblines * cheight);
- stdvga_grdc_write(0x05, 0x00);
+ stdvga_planar4_plane(-1);
}
static void
, struct cursorpos ul, struct cursorpos lr)
{
int cheight = GET_GLOBAL(vmode_g->cheight) / 2;
- int cwidth = GET_GLOBAL(vmode_g->pixbits);
+ int cwidth = GET_GLOBAL(vmode_g->depth);
int stride = GET_BDA(video_cols) * cwidth;
void *src_far, *dest_far;
if (nblines >= 0) {
src_far = dest_far - nblines * cheight * stride;
stride = -stride;
}
+ if (attr < 0)
+ attr = 0;
int cols = lr.x - ul.x + 1;
int rows = lr.y - ul.y + 1;
if (nblines < rows) {
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 * 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;
+ }
+ if (attr < 0)
+ attr = 0;
+ 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);
+ 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 = GET_BDA(video_cols) * cwidth;
+ void *src_far, *dest_far = (void*)(GET_BDA(video_pagesize) * ul.page);
if (nblines >= 0) {
dest_far += ul.y * cheight * stride + ul.x * cwidth;
src_far = dest_far + nblines * cheight * stride;
src_far = dest_far - nblines * cheight * stride;
stride = -stride;
}
+ if (attr < 0)
+ attr = 0x07;
+ attr = (attr << 8) | ' ';
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 * cwidth
, stride, (rows - nblines) * cheight);
- if (attr < 0)
- attr = 0x07;
- attr = (attr << 8) | ' ';
memset16_stride(seg, dest_far, attr, cols * cwidth
, stride, nblines * cheight);
}
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));
+ struct vgamode_s *vmode_g = get_current_mode();
if (!vmode_g)
return;
// FIXME gfx mode not complete
switch (GET_GLOBAL(vmode_g->memmodel)) {
- case CTEXT:
- case MTEXT:
+ case MM_TEXT:
scroll_text(vmode_g, nblines, attr, ul, lr);
break;
- case PLANAR4:
- case PLANAR1:
+ case MM_PLANAR:
scroll_pl4(vmode_g, nblines, attr, ul, lr);
break;
- case CGA:
+ case MM_CGA:
scroll_cga(vmode_g, nblines, attr, ul, lr);
break;
- default:
- dprintf(1, "Scroll in graphics mode\n");
+ case MM_DIRECT:
+ case MM_PACKED:
+ scroll_lin(vmode_g, nblines, attr, ul, lr);
+ break;
}
}
}
u16 addr = cp.x + cp.y * cheight * nbcols;
u16 src = ca.car * cheight;
- stdvga_sequ_write(0x02, 0x0f);
- stdvga_grdc_write(0x05, 0x02);
- if (ca.attr & 0x80)
- stdvga_grdc_write(0x03, 0x18);
- else
- 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;
- 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);
+ int i;
+ for (i=0; i<4; i++) {
+ stdvga_planar4_plane(i);
+ u8 colors = ((ca.attr & (1<<i)) ? 0xff : 0x00);
+ int j;
+ for (j = 0; j < cheight; j++) {
+ u8 *dest_far = (void*)(addr + j * nbcols);
+ u8 pixels = colors & GET_GLOBAL(fdata_g[src + j]);
+ if (ca.attr & 0x80)
+ pixels ^= GET_FARVAR(SEG_GRAPH, *dest_far);
+ SET_FARVAR(SEG_GRAPH, *dest_far, pixels);
}
}
- stdvga_grdc_write(0x08, 0xff);
- stdvga_grdc_write(0x05, 0x00);
- stdvga_grdc_write(0x03, 0x00);
+ stdvga_planar4_plane(-1);
}
static void
return;
u8 *fdata_g = vgafont8;
- u8 bpp = GET_GLOBAL(vmode_g->pixbits);
+ u8 bpp = GET_GLOBAL(vmode_g->depth);
u16 addr = (cp.x * bpp) + cp.y * 320;
u16 src = ca.car * 8;
u8 i;
write_text_char(struct vgamode_s *vmode_g
, struct cursorpos cp, struct carattr ca)
{
- // Get the dimensions
- u16 nbrows = GET_BDA(video_rows) + 1;
- u16 nbcols = GET_BDA(video_cols);
-
// Compute the address
- void *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, cp.page)
+ u16 nbcols = GET_BDA(video_cols);
+ void *address_far = (void*)(GET_BDA(video_pagesize) * cp.page
+ (cp.x + cp.y * nbcols) * 2);
if (ca.use_attr) {
vgafb_write_char(struct cursorpos cp, struct carattr ca)
{
// Get the mode
- struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
+ struct vgamode_s *vmode_g = get_current_mode();
if (!vmode_g)
return;
// FIXME gfx mode not complete
switch (GET_GLOBAL(vmode_g->memmodel)) {
- case CTEXT:
- case MTEXT:
+ case MM_TEXT:
write_text_char(vmode_g, cp, ca);
break;
- case PLANAR4:
- case PLANAR1:
+ case MM_PLANAR:
write_gfx_char_pl4(vmode_g, cp, ca);
break;
- case CGA:
+ case MM_CGA:
write_gfx_char_cga(vmode_g, cp, ca);
break;
- case LINEAR8:
+ case MM_DIRECT:
+ case MM_PACKED:
write_gfx_char_lin(vmode_g, cp, ca);
break;
}
vgafb_read_char(struct cursorpos cp)
{
// Get the mode
- struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
+ struct vgamode_s *vmode_g = get_current_mode();
if (!vmode_g)
goto fail;
- if (!(GET_GLOBAL(vmode_g->memmodel) & TEXT)) {
+ if (GET_GLOBAL(vmode_g->memmodel) != MM_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);
-
// Compute the address
- u16 *address_far = (void*)(SCREEN_MEM_START(nbcols, nbrows, cp.page)
+ u16 nbcols = GET_BDA(video_cols);
+ u16 *address_far = (void*)(GET_BDA(video_pagesize) * 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};
vgafb_write_pixel(u8 color, u16 x, u16 y)
{
// Get the mode
- struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
+ struct vgamode_s *vmode_g = get_current_mode();
if (!vmode_g)
return;
- if (GET_GLOBAL(vmode_g->memmodel) & TEXT)
- return;
- u8 *addr_far, mask, attr, data;
+ u8 *addr_far, mask, attr, data, i;
switch (GET_GLOBAL(vmode_g->memmodel)) {
- case PLANAR4:
- case PLANAR1:
+ case MM_PLANAR:
addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
mask = 0x80 >> (x & 0x07);
- stdvga_grdc_write(0x08, mask);
- stdvga_grdc_write(0x05, 0x02);
- GET_FARVAR(SEG_GRAPH, *(volatile u8*)addr_far);
- if (color & 0x80)
- stdvga_grdc_write(0x03, 0x18);
- SET_FARVAR(SEG_GRAPH, *addr_far, color);
- stdvga_grdc_write(0x08, 0xff);
- stdvga_grdc_write(0x05, 0x00);
- stdvga_grdc_write(0x03, 0x00);
+ for (i=0; i<4; i++) {
+ stdvga_planar4_plane(i);
+ u8 colors = (color & (1<<i)) ? 0xff : 0x00;
+ u8 orig = GET_FARVAR(SEG_GRAPH, *addr_far);
+ if (color & 0x80)
+ colors ^= orig;
+ SET_FARVAR(SEG_GRAPH, *addr_far, (colors & mask) | (orig & ~mask));
+ }
+ stdvga_planar4_plane(-1);
break;
- case CGA:
- if (GET_GLOBAL(vmode_g->pixbits) == 2)
+ case MM_CGA:
+ if (GET_GLOBAL(vmode_g->depth) == 2)
addr_far = (void*)((x >> 2) + (y >> 1) * 80);
else
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) {
+ if (GET_GLOBAL(vmode_g->depth) == 2) {
attr = (color & 0x03) << ((3 - (x & 0x03)) * 2);
mask = 0x03 << ((3 - (x & 0x03)) * 2);
} else {
}
SET_FARVAR(SEG_CTEXT, *addr_far, data);
break;
- case LINEAR8:
+ case MM_DIRECT:
+ case MM_PACKED:
addr_far = (void*)(x + y * (GET_BDA(video_cols) * 8));
SET_FARVAR(SEG_GRAPH, *addr_far, color);
break;
+ case MM_TEXT:
+ return;
}
}
vgafb_read_pixel(u16 x, u16 y)
{
// Get the mode
- struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode));
+ struct vgamode_s *vmode_g = get_current_mode();
if (!vmode_g)
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:
+ case MM_PLANAR:
addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
mask = 0x80 >> (x & 0x07);
attr = 0x00;
for (i = 0; i < 4; i++) {
- stdvga_grdc_write(0x04, i);
+ stdvga_planar4_plane(i);
data = GET_FARVAR(SEG_GRAPH, *addr_far) & mask;
if (data > 0)
attr |= (0x01 << i);
}
+ stdvga_planar4_plane(-1);
break;
- case CGA:
+ case MM_CGA:
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)
+ if (GET_GLOBAL(vmode_g->depth) == 2)
attr = (data >> ((3 - (x & 0x03)) * 2)) & 0x03;
else
attr = (data >> (7 - (x & 0x07))) & 0x01;
break;
- case LINEAR8:
+ case MM_DIRECT:
+ case MM_PACKED:
addr_far = (void*)(x + y * (GET_BDA(video_cols) * 8));
attr = GET_FARVAR(SEG_GRAPH, *addr_far);
break;
+ case MM_TEXT:
+ return 0;
}
return attr;
}
projects / seabios.git / blobdiff