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TempleOS-Rijn/TempleOS/Adam/Gr/GrScreen.CPP
T
Terry A. Davis 2d2a65d572 TempleOSTS_131005.ISO
2018-09-08 21:45:52 +02:00

867 lines
20 KiB
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#help_index "Graphics/DCs;Graphics/Screen"
public CDC *gr_screen_image; //This is read only
#help_index "Graphics/DCs"
public CDC *gr_dc=NULL, //Persistent
*gr_dc1=NULL,
*gr_dc2=NULL, //Updated every refresh
*gr_dc_cache;
CDC *gr_zoomed_dc;
U16 *gr_win_uncovered_bitmap=NULL,gr_highest_uncovered;
U16 *gr_vga_text_cache;
public U0 DCFill(CDC *dc=NULL,CColorROPU32 val=COLOR_TRANSPARENT)
{
if (!dc) dc=gr_dc;
nobound_switch (dc->type) {
case DCT_COLOR4:
MemSet(dc->body,val,(dc->width_internal*dc->height)>>1);
break;
case DCT_COLOR8:
MemSet(dc->body,val,dc->width_internal*dc->height);
break;
}
}
public U0 DCClear(CDC *dc=NULL)
{
if (!dc) dc=gr_dc;
DCFill(dc,0);
}
#help_index "Graphics/Screen"
public I64 gr_pan_text_x=0,gr_pan_text_y=0; // [-7,7]
public U0 (*fp_final_screen_update)(CDC *dc)=NULL;
public U0 (*fp_wall_paper)(CTask *task)=NULL;
#help_index "Graphics/Screen;Windows"
U0 WinZBufFill(CTask *task)
{ //Not public
I64 y,t,b,l,r,w;
if (!Bt(&task->display_flags,DISPLAYf_NO_BORDER)) {
if (task->win_top-1>0)
t=task->win_top-1;
else
t=0;
if (task->win_bottom+1<TEXT_ROWS)
b=task->win_bottom+1;
else
b=TEXT_ROWS-1;
if (task->win_left-1>0)
l=task->win_left-1;
else
l=0;
if (task->win_right+1<TEXT_COLS)
r=task->win_right+1;
else
r=TEXT_COLS-1;
} else {
if (task->win_top>0)
t=task->win_top;
else
t=0;
if (task->win_bottom<TEXT_ROWS)
b=task->win_bottom;
else
b=TEXT_ROWS-1;
if (task->win_left>0)
l=task->win_left;
else
l=0;
if (task->win_right<TEXT_COLS)
r=task->win_right;
else
r=TEXT_COLS-1;
}
t=LimitI64(t,0,TEXT_ROWS-1);
b=LimitI64(b,t,TEXT_ROWS-1);
l=LimitI64(l,0,TEXT_COLS-1);
r=LimitI64(r,l,TEXT_COLS-1);
if (w=r-l+1)
for (y=t;y<=b;y++)
MemSetU16(gr_win_z_buf(U8 *)+(y*TEXT_COLS+l)*sizeof(U16),
task->win_z_num,w);
}
public U0 WinZBufUpdate()
{ //You might have to call this if you are doing graphics outside
//the window mgr callback routines. Call it if, for example,
//a pop-up window closes and you need to refresh before graphics.
I64 i,z=1;
U16 *ptr;
CTask *task,*task1;
Bool old_preempt=Preempt(OFF);
if (gr_win_z_buf) {
LBtr(&sys_semas[SYS_SEMA_UPDATE_WIN_Z_BUF],0);
task1=task=sys_winmgr_task;
do {
if (!TaskValidate(task)) break;
if (Bt(&task->display_flags,DISPLAYf_SHOW)) {
task->win_z_num=z++;
WinZBufFill(task);
}
task=task->next_task;
} while (task!=task1 && z<0x10000);
MemSet(gr_win_uncovered_bitmap,0,(gr_highest_uncovered+7)>>3+1);
gr_highest_uncovered=z-1;
for (ptr=gr_win_z_buf,i=TEXT_ROWS*TEXT_COLS;i;i--)
Bts(gr_win_uncovered_bitmap,*ptr++);
}
Preempt(old_preempt);
}
#help_index "Graphics/Char;Char"
public U0 WinTextFill(I64 d,CTask *task=NULL)
{
I64 y,w,t,b,l,r;
if (!task) task=Fs;
if (!TaskValidate(task)) return;
if (task->win_top>0)
t=task->win_top;
else
t=0;
if (task->win_bottom<TEXT_ROWS)
b=task->win_bottom;
else
b=TEXT_ROWS-1;
if (task->win_left>0)
l=task->win_left;
else
l=0;
if (task->win_right<TEXT_COLS)
r=task->win_right;
else
r=TEXT_COLS-1;
if (w=r-l+1)
for (y=t;y<=b;y++)
MemSetU32(gr_text_base(U8 *)+(y*TEXT_COLS+l)*sizeof(U32),
d,w);
}
#help_index "Graphics/Color"
public I32 gr_rainbow_10[10]=
{
BLACK,BROWN,RED,LTRED,YELLOW,
GREEN,BLUE,PURPLE,LTGRAY,WHITE
};
DefineLstLoad("ST_RAINBOW_10",
"BLACK\0BROWN\0RED\0LTRED\0YELLOW\0"
"GREEN\0BLUE\0PURPLE\0LTGRAY\0WHITE\0");
U0 SetVGAPalette4Indices()
{//4-bit (16 color)
/*There is a level of indirection we wish to identity map.
This sets the 16-colors to use
the first 16 DAC rgb entries, so
we never need to worry about indexes,
just DAC palette settings.
*/
I64 i;
if (text_mode) return;
PushFD;
Cli;
while (LBts(&sys_semas[SYS_SEMA_VGA],0))
Yield;
InU8(VGA_INPUT_STAT); //Rsts attr index/data
for (i=0;i<16;i++) {
OutU8(VGA_ATTR_INDEX,i);
OutU8(VGA_ATTR_DATA_WRITE,i);
}
OutU8(VGA_ATTR_INDEX,0x20);
OutU8(VGA_ATTR_DATA_WRITE,0); //Dummy write
InU8(VGA_INPUT_STAT); //Rsts attr index/data
LBtr(&sys_semas[SYS_SEMA_VGA],0);
PopFD;
}
public U0 SetVGAPaletteColor(I64 color_num,CBGR bgr)
{ //6-bits per r,dc and g
if (text_mode) return;
PushFD;
Cli;
while (LBts(&sys_semas[SYS_SEMA_VGA],0))
Yield;
OutU8(VGA_PALETTE_MASK,0xFF);
OutU8(VGA_REG_WRITE,color_num);
OutU8(VGA_PALETTE_DATA,bgr.r>>2);
OutU8(VGA_PALETTE_DATA,bgr.g>>2);
OutU8(VGA_PALETTE_DATA,bgr.b>>2);
LBtr(&sys_semas[SYS_SEMA_VGA],0);
PopFD;
}
public CBGR GetVGAPaletteColor(I64 color_num)
{ //6-bits per r,dc and g
CBGR result=0;
if (text_mode) return 0;
PushFD;
Cli;
while (LBts(&sys_semas[SYS_SEMA_VGA],0))
Yield;
OutU8(VGA_PALETTE_MASK,0xFF);
OutU8(VGA_REG_READ,color_num);
result.r=InU8(VGA_PALETTE_DATA)<<2;
result.g=InU8(VGA_PALETTE_DATA)<<2;
result.b=InU8(VGA_PALETTE_DATA)<<2;
LBtr(&sys_semas[SYS_SEMA_VGA],0);
PopFD;
return result;
}
public CBGR vga_palette4_std[16]={
0x000000,0x0000AA,0x00AA00,0x00AAAA,
0xAA0000,0xAA00AA,0xAA5500,0xAAAAAA,
0x555555,0x5555FF,0x55FF55,0x55FFFF,
0xFF5555,0xFF55FF,0xFFFF55,0xFFFFFF};
public CBGR vga_palette4_gray[16]={
0x000000,0x111111,0x222222,0x333333,
0x444444,0x555555,0x666666,0x777777,
0x888888,0x999999,0xAAAAAA,0xBBBBBB,
0xCCCCCC,0xDDDDDD,0xEEEEEE,0xFFFFFF};
public U0 GetVGAPalette4(CBGR *bgr)
{//4-bit (16 color)
I64 i;
for (i=0;i<16;i++)
bgr[i]=GetVGAPaletteColor(i);
}
public U0 SetVGAPalette4(CBGR *bgr)
{//4-bit (16 color)
I64 i;
for (i=0;i<16;i++)
SetVGAPaletteColor(i,bgr[i]);
}
public U0 SetStdPalette()
{
SetVGAPalette4(vga_palette4_std);
}
#help_index "Graphics/Screen"
#define GR_NUM_PEN_BRUSHES 64
CDC *gr_pen_brushes[GR_NUM_PEN_BRUSHES],
*gr_collision_pen_brushes[GR_NUM_PEN_BRUSHES],
*gr_even_pen_brushes[GR_NUM_PEN_BRUSHES],
*gr_odd_pen_brushes[GR_NUM_PEN_BRUSHES];
#define GR_MAX_SCREEN_ZOOM 8
U8 *gr_screen_zoom_tables[GR_MAX_SCREEN_ZOOM+1];
I64 gr_screen_zoom=1,grsx=0,grsy=0;
//When zoomed, this keeps the mouse centered.
public Bool gr_continuous_scroll=FALSE;
#define GR_REFRESH_LOG_CNT 16
F64 gr_refresh_time_stamps[GR_REFRESH_LOG_CNT];
I64 gr_refresh_ts_ptr=0;
U0 GrSetUpTables()
{
CDC *dc;
I64 i,j,k,l,m,x,y,rr;
U8 *dst;
k=0;
for (i=0;i<256;i++)
for (j=0;j<8;j++)
if (Bt(&i,j))
gr_1_to_8_bits(U8 *)[k++]=0xFF;
else
gr_1_to_8_bits(U8 *)[k++]=0x00;
k=0;
for (i=0;i<256;i++)
for (j=0;j<8;j++)
gr_1_to_8_colors(U8 *)[k++]=i;
for (i=0;i<GR_NUM_PEN_BRUSHES;i++) {
k=i+1;
dc=DCNew(DCT_COLOR8,i,i);
gr_pen_brushes[i]=dc;
dc->color=COLOR_MONO;
rr=k*k;
for (y=1;y<k;y++)
for (x=1;x<k;x++)
if (SqrI64(y*2-k)+SqrI64(x*2-k)<rr)
GrPlot0(dc,x-1,y-1);
dc=DCNew(DCT_COLOR8,i,i);
gr_collision_pen_brushes[i]=dc;
dc->color=COLOR_INVALID;
rr=k*k;
for (y=1;y<k;y++)
for (x=1;x<k;x++)
if (SqrI64(y*2-k)+SqrI64(x*2-k)<rr)
GrPlot0(dc,x-1,y-1);
dc=DCNew(DCT_COLOR8,i,i);
gr_even_pen_brushes[i]=dc;
dc->color=COLOR_MONO;
rr=k*k;
for (y=1;y<k;y++)
for (x=1;x<k;x++)
if (!(((x-1)^(y-1))&1) && SqrI64(y*2-k)+SqrI64(x*2-k)<rr)
GrPlot0(dc,x-1,y-1);
dc=DCNew(DCT_COLOR8,i,i);
gr_odd_pen_brushes[i]=dc;
dc->color=COLOR_MONO;
rr=k*k;
for (y=1;y<k;y++)
for (x=1;x<k;x++)
if (((x-1)^(y-1))&1 && SqrI64(y*2-k)+SqrI64(x*2-k)<rr)
GrPlot0(dc,x-1,y-1);
}
if (text_mode) {
MemSet(VGA_TEXT_MEM_BASE,0,TEXT_ROWS*TEXT_COLS*sizeof(U16));
MemSet(gr_vga_text_cache,0,TEXT_ROWS*TEXT_COLS*sizeof(U16));
} else {
OutU8(VGA_SC_INDEX,VGA_MAP_MASK);
OutU8(VGA_SC_DATA,0x0F);
//Virtual Box crashes on the following for some reason.
// MemSet(VGA_GRAPHIC_MEM_BASE,0,GR_HEIGHT*GR_WIDTH>>3);
MemSet(gr_screen_image->body,0,GR_WIDTH*GR_HEIGHT>>1);
}
for (i=1;i<=GR_MAX_SCREEN_ZOOM;i++) {
dst=gr_screen_zoom_tables[i]=MAlloc(256*i);
for (j=0;j<256;j++) {
m=0;
for (k=0;k<8;k++) {
if (Bt(&j,k)) {
for (l=0;l<i;l++)
Bts(&m,l+k*i);
}
}
for (l=0;l<i;l++)
dst[j+l*256]=m.u8[l];
}
}
for (i=0;i<GR_REFRESH_LOG_CNT;i++)
gr_refresh_time_stamps[i]=tT;
}
U0 GrInit4()
{
SetStdPalette;
fp_set_std_palette=&SetStdPalette;
SetVGAPalette4Indices;
gr_1_to_8_bits =MAlloc(256*sizeof(I64));
gr_1_to_8_colors=MAlloc(256*sizeof(I64));
gr_text_base=CAlloc(TEXT_ROWS*TEXT_COLS*sizeof(U32));
gr_vga_text_cache=MAlloc(TEXT_ROWS*TEXT_COLS*sizeof(U16));
gr_win_uncovered_bitmap=CAlloc(65536/8);
gr_highest_uncovered=0;
gr_win_z_buf=MAlloc(TEXT_ROWS*TEXT_COLS*sizeof(U16));
gr_dc2=DCNew(DCT_COLOR8,GR_WIDTH,GR_HEIGHT);
gr_dc2->flags|=DCF_SCREEN_BITMAP;
gr_dc_cache=DCNew(DCT_COLOR8,GR_WIDTH,GR_HEIGHT);
gr_dc=DCNew(DCT_COLOR8,GR_WIDTH,GR_HEIGHT);
gr_dc->flags|=DCF_SCREEN_BITMAP;
DCFill;
gr_dc1=DCNew(DCT_COLOR4,GR_WIDTH,GR_HEIGHT);
gr_dc1->flags|=DCF_SCREEN_BITMAP;
gr_screen_image=DCNew(DCT_COLOR4,GR_WIDTH,GR_HEIGHT);
gr_zoomed_dc =DCNew(DCT_COLOR4,GR_WIDTH,GR_HEIGHT);
gr_zoomed_dc->flags|=DCF_SCREEN_BITMAP;
GrSetUpTables;
WinZBufUpdate;
}
U0 GrUpdateWins()
{ //Only called by WinMgr
I64 i;
CTask *task,*task1;
CD3I64 saved_scroll;
CDC *dc;
Bool old_preempt=Preempt(OFF);
try {
refresh_ode_time=0;
if (Bt(&sys_semas[SYS_SEMA_UPDATE_WIN_Z_BUF],0))
WinZBufUpdate;
task1=task=sys_winmgr_task;
do {
if (!TaskValidate(task))
break;
sys_task_being_screen_updated=task;
Preempt(old_preempt);
ODEsUpdate(task);
Preempt(OFF);
if (!TaskValidate(task))
break;
if (Bt(&task->display_flags,DISPLAYf_SHOW) &&
Bt(gr_win_uncovered_bitmap,task->win_z_num)) {
try {
if (!Bt(&task->display_flags,DISPLAYf_NO_BORDER))
DrawTaskBorder(task);
WinTextFill(task->text_attr<<8,task);
Preempt(old_preempt);
if (task==sys_winmgr_task) {
if (fp_wall_paper)
(*fp_wall_paper)(task);
} else {
if (!(task->win_inhibit&WIF_DOC))
DocUpdateTaskDocs(task);
}
if (TaskValidate(task)) {
if (task->draw_it) {
dc=DCAlias(gr_dc2,task);
(*task->draw_it)(task,dc);
DCDel(dc);
}
if (TaskValidate(task)) {
Preempt(OFF);
WinScrollNull(task,&saved_scroll);
DrawCtrls(task);
WinScrollRestore(task,&saved_scroll);
}
}
} catch {
if (task!=Fs && TaskValidate(task)) {
LBtr(&task->display_flags,DISPLAYf_SHOW);
"Exception in WinMgr: DrawIt\n";
PutExcept;
Sleep(3000);
VGAFlush;
Fs->catch_except=TRUE;
}
}
}
if (!TaskValidate(task))
break;
task=task->next_task;
} while (task!=task1);
for (i=1;i<mp_cnt;i++) {
task1=task=cpu_structs[i].seth_task;
do {
if (!TaskValidate(task))
break;
try {
sys_task_being_screen_updated=task;
Preempt(old_preempt);
ODEsUpdate(task);
Preempt(OFF);
} catch {
LBts(&task->win_inhibit,WIf_ODE);
"Exception in WinMgr: ODE\n";
PutExcept;
Sleep(3000);
VGAFlush;
Fs->catch_except=TRUE;
}
if (!TaskValidate(task))
break;
task=task->next_task;
} while (task!=task1);
}
} catch {
PutExcept;
Dbg("Exception in WinMgr");
}
last_refresh_ode_time=refresh_ode_time;
ode_allocated_factor=LowPass1(0.1,ode_allocated_factor,
Limit(Gs->idle_factor-0.1,0.2,0.8),1/win_actual_refresh);
sys_task_being_screen_updated=NULL;
gr_refresh_time_stamps[gr_refresh_ts_ptr++&(GR_REFRESH_LOG_CNT-1)]=tT;
win_actual_refresh=(GR_REFRESH_LOG_CNT-1)/
(gr_refresh_time_stamps[(gr_refresh_ts_ptr-1)&(GR_REFRESH_LOG_CNT-1)]-
gr_refresh_time_stamps[gr_refresh_ts_ptr&(GR_REFRESH_LOG_CNT-1)]);
Preempt(old_preempt);
}
U0 GrFixZoomScale()
{
gr_screen_zoom=LimitI64(gr_screen_zoom,1,GR_MAX_SCREEN_ZOOM);
if (gr_screen_zoom==1) {
grsx=0;
grsy=0;
} else {
grsx=LimitI64(grsx,0,GR_WIDTH-GR_WIDTH/gr_screen_zoom)&~7;
grsy=LimitI64(grsy,0,GR_HEIGHT-GR_HEIGHT/gr_screen_zoom);
}
}
public U0 GrScaleZoom(F64 scale)
{
Bool old_preempt=Preempt(OFF);
F64 s=gr_screen_zoom;
gr_screen_zoom=gr_screen_zoom*scale;
GrFixZoomScale;
s/=gr_screen_zoom;
ipx_scale*=s;
ipy_scale*=s;
ipz_scale*=s;
ipx_offset=ipx-(ipx-ipx_offset)*s;
ipy_offset=ipy-(ipy-ipy_offset)*s;
ipz_offset=ipz-(ipz-ipz_offset)*s;
grsx=ipx-gr_zoomed_dc->width >>1/gr_screen_zoom;
grsy=ipy-gr_zoomed_dc->height>>1/gr_screen_zoom;
GrFixZoomScale;
Preempt(old_preempt);
}
public U0 GrZoomIn()
{
GrScaleZoom(2.0);
}
public U0 GrZoomOut()
{
GrScaleZoom(0.5);
}
U0 CtrlAltZ(I64 sc)
{
if (sc&SCF_SHIFT)
GrZoomOut;
else
GrZoomIn;
}
SetCtrlAltLetCB('Z',&CtrlAltZ,"Sys/Zoom In or Out");
U0 GrZoomInScreen()
{
GrFixZoomScale;
I64 plane,row,col,k,l,
d2=gr_zoomed_dc->width>>3/gr_screen_zoom,
d4=gr_zoomed_dc->width_internal>>3,
d5=d4-d2*gr_screen_zoom,
d3=gr_zoomed_dc->height/gr_screen_zoom,
d6=(gr_zoomed_dc->height-d3)*gr_dc1->width_internal>>3,
d7=gr_zoomed_dc->height%gr_screen_zoom*d4;
U8 *src,*src2,*dst,*src3,*map=gr_screen_zoom_tables[gr_screen_zoom];
src=gr_dc1->body+grsx>>3+grsy*gr_dc1->width_internal>>3;
dst=gr_zoomed_dc->body;
for (plane=1;plane<0x10;plane<<=1) {
row=d3;
while (row--) {
k=gr_screen_zoom;
while (k--) {
src2=src;
col=d2;
while (col--) {
src3=&map[*src2++];
l=gr_screen_zoom;
while (l--) {
*dst++=*src3;
src3+=256;
}
}
l=d5;
while (l--)
*dst++=0;
}
src+=d4;
}
l=d7;
while (l--)
*dst++=0;
src+=d6;
}
}
U0 GrUpdateBackgroundOfText()
{
I64 reg RSI *dst=gr_dc2->body,reg R13 c,row,col,
num_rows=TEXT_ROWS,num_cols=TEXT_COLS,i,j,cur_ch,
reg R12 w1=gr_dc2->width_internal,w2=-7*w1+8,w3=7*w1,w4=0;
U32 *src=gr_text_base;
Bool blink_flag=Blink;
U8 *dst2=dst;
if (gr_pan_text_x) {
gr_pan_text_x=LimitI64(gr_pan_text_x,-7,7);
j=AbsI64(gr_pan_text_x)/FONT_WIDTH+1;
num_cols-=j;
if (gr_pan_text_x<0) {
src+=j;
i=FONT_WIDTH*j+gr_pan_text_x;
} else
i=gr_pan_text_x;
dst2=dst(U8 *)+i;
w4=j;
w3+=j*FONT_WIDTH;
j*=FONT_WIDTH;
dst(U8 *)=gr_dc2->body;
for (row=num_rows*FONT_HEIGHT;row--;) {
for (col=i;col--;)
*dst(U8 *)++=0;
dst(U8 *)+=w1-i-j;
for (col=j;col--;)
*dst(U8 *)++=0;
}
}
dst=dst2;
if (gr_pan_text_y) {
gr_pan_text_y=LimitI64(gr_pan_text_y,-7,7);
j=AbsI64(gr_pan_text_y)/FONT_HEIGHT+1;
num_rows-=j;
if (gr_pan_text_y<0) {
src+=w1/FONT_WIDTH*j;
i=w1*(FONT_HEIGHT*j+gr_pan_text_y);
} else
i=w1*gr_pan_text_y;
dst2=dst(U8 *)+i;
j*=w1*FONT_HEIGHT;
dst(U8 *)=gr_dc2->body;
for (row=i;row--;)
*dst(U8 *)++=0;
dst(U8 *)=gr_dc2->body+TEXT_ROWS*TEXT_COLS*FONT_HEIGHT*FONT_WIDTH-j;
for (row=j;row--;)
*dst(U8 *)++=0;
}
dst=dst2;
for (row=num_rows;row--;) {
for (col=num_cols;col--;) {
cur_ch=*src++;
if (cur_ch & (DOCET_SELECTED | DOCET_INVERT | DOCET_BLINK)) {
if (cur_ch & DOCET_SELECTED)
cur_ch.u8[1]=cur_ch.u8[1]^0xFF;
if (cur_ch & DOCET_INVERT)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
if (cur_ch & DOCET_BLINK && blink_flag)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
}
c=gr_1_to_8_colors[cur_ch.u8[1]>>4];
asm {
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
ADD RSI,R12
MOV U64 [RSI],R13
}
dst(U8 *)+=w2;
}
src+=w4;
dst(U8 *)+=w3;
}
}
//$AN,"ExtScreenCodes","ExtScreenCodes"$
// Bits 0-7 ASCII (Screen Code)
// Bits 8-11 Foreground color
// Bits 12-15 Background color
// Bits 16-20 Signed X pos shift val
// Bits 21-25 Signed Y pos shift val
// Bit 28 Blink
// Bit 29 Inverted (Swap foreground and background)
// Bit 30 Selected (XOR colors with FF)
// Bit 31 Underline
U0 GrUpdateForegroundOfText()
{
U32 *src=gr_text_base;
I64 i,j,cur_ch,*dst=gr_dc2->body,
w1=gr_dc2->width_internal,w2=7*w1,w4=0,
num_rows=TEXT_ROWS,num_cols=TEXT_COLS,row,col;
U8 *dst_start=gr_dc2->body,*dst_end=dst_start+w1*gr_dc2->height-7*w1-8;
Bool blink_flag=Blink;
if (gr_pan_text_x) {
gr_pan_text_x=LimitI64(gr_pan_text_x,-7,7);
j=AbsI64(gr_pan_text_x)/FONT_WIDTH+1;
num_cols-=j;
if (gr_pan_text_x<0) {
src+=j;
dst(U8 *)+=FONT_WIDTH*j;
}
w4=j;
w2+=j*FONT_WIDTH;
}
if (gr_pan_text_y) {
gr_pan_text_y=LimitI64(gr_pan_text_y,-7,7);
j=AbsI64(gr_pan_text_y)/FONT_HEIGHT+1;
num_rows-=j;
if (gr_pan_text_y<0) {
src+=w1/FONT_WIDTH*j;
dst(U8 *)+=w1*FONT_HEIGHT*j;
}
}
for (row=num_rows;row--;) {
for (col=num_cols;col--;) {
cur_ch=*src++;
if (cur_ch & (DOCET_UNDERLINE | DOCET_SELECTED | DOCET_INVERT | DOCET_BLINK)) {
if (cur_ch & DOCET_SELECTED)
cur_ch.u8[1]=cur_ch.u8[1]^0xFF;
if (cur_ch & DOCET_INVERT)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
if (cur_ch & DOCET_BLINK && blink_flag)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
}
if (i=cur_ch.u16[1]&0x3FF+gr_pan_text_x+gr_pan_text_y<<5) {
j=i&0x1F;
if (j&0x10) j|=~0x1F;
i>>=5;
if (i&0x10) i|=~0x1F;
i=w1*i+j;
if (dst_start<=dst(U8 *)+i<dst_end)
GrRopEquU8NoClipping(cur_ch&(DOCET_UNDERLINE+0xFFF),dst(U8 *)+i,w1);
} else
GrRopEquU8NoClipping(cur_ch&(DOCET_UNDERLINE+0xFFF),dst,w1);
dst(U8 *)+=8;
}
src+=w4;
dst(U8 *)+=w2;
}
}
U0 DCBlotColor8(CDC *dc,CDC *img)
{
U8 reg *src=img->body,*b0=dc->body;
I64 reg j,reg k,reg d0=img->width_internal*img->height;
for (k=0;k<d0;k++) {
j=*src++;
if (j!=COLOR_TRANSPARENT)
*b0++=j;
else
b0++;
}
}
U0 GrUpdateTextModeText()
{
U32 *src=gr_text_base;
I64 cur_ch,i,d0=TEXT_COLS*TEXT_ROWS;
U16 *dst=VGA_TEXT_MEM_BASE,*dst2=gr_vga_text_cache;
Bool blink_flag=Blink;
if (LBtr(&sys_semas[SYS_SEMA_FLUSH_VGA_IMAGE],0)) {
i=d0;
while (i--) {
cur_ch=*src++;
if (cur_ch & DOCET_SELECTED)
cur_ch.u8[1]=cur_ch.u8[1]^0xFF;
if (cur_ch & DOCET_INVERT)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
if (cur_ch & DOCET_BLINK)
if (blink_flag)
cur_ch.u8[1]= cur_ch.u8[1]<<4+ cur_ch.u8[1]>>4;
cur_ch&=0x7FFF;
*dst++=*dst2++=cur_ch;
}
} else {
i=d0;
while (i--) {
cur_ch=*src++;
if (cur_ch & DOCET_SELECTED)
cur_ch.u8[1]=cur_ch.u8[1]^0xFF;
if (cur_ch & DOCET_INVERT)
cur_ch.u8[1]=cur_ch.u8[1]<<4+cur_ch.u8[1]>>4;
if (cur_ch & DOCET_BLINK)
if (blink_flag)
cur_ch.u8[1]= cur_ch.u8[1]<<4+ cur_ch.u8[1]>>4;
cur_ch&=0x7FFF;
if (*dst2!=cur_ch)
*dst++=*dst2++=cur_ch;
else {
dst++;
dst2++;
}
}
}
}
U0 GrUpdateVGAGraphics()
{
I64 row,plane,d2=gr_zoomed_dc->width_internal>>5;
U32 *src,*dst,*dst2;
//Update Graphic Card
if (gr_screen_zoom==1)
src=gr_dc1->body;
else {
GrZoomInScreen;
src=gr_zoomed_dc->body;
}
dst2=gr_screen_image->body;
if (LBtr(&sys_semas[SYS_SEMA_FLUSH_VGA_IMAGE],0)) {
for (plane=1;plane<0x10;plane<<=1) {
OutU8(VGA_SC_INDEX,VGA_MAP_MASK);
OutU8(VGA_SC_DATA,plane);
dst=VGA_GRAPHIC_MEM_BASE;
row=gr_zoomed_dc->height;
while (row--)
GrUpdateLine32FlushCache(&dst,&src,d2,&dst2);
}
} else {
for (plane=1;plane<0x10;plane<<=1) {
OutU8(VGA_SC_INDEX,VGA_MAP_MASK);
OutU8(VGA_SC_DATA,plane);
dst=VGA_GRAPHIC_MEM_BASE;
row=gr_zoomed_dc->height;
while (row--)
GrUpdateLine32(&dst,&src,d2,&dst2);
}
}
}
U0 GrUpdateScreen()
{
CDC *dc;
Bool old_preempt=IsPreempt;
if (!IsSysDeterministic)
Preempt(ON);
if (text_mode)
GrUpdateWins;
else {
GrUpdateBackgroundOfText;
GrUpdateForegroundOfText;
GrUpdateWins;
DCBlotColor8(gr_dc2,gr_dc);
}
dc=DCAlias(gr_dc2,Fs);
dc->flags|=DCF_ON_TOP;
if (fp_final_screen_update)
(*fp_final_screen_update)(dc);
DCDel(dc);
if (text_mode)
GrUpdateTextModeText;
else {
DCBlotColor4(gr_dc1->body,gr_dc2->body,gr_dc_cache->body,
gr_dc2->height*gr_dc2->width_internal>>3);
GrUpdateVGAGraphics;
}
Preempt(old_preempt);
}
#help_index "Graphics"
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