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plan9fox/sys/src/9/omap/screen.h

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Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
typedef struct Cursor Cursor;
typedef struct OScreen OScreen;
typedef struct Omap3fb Omap3fb;
typedef struct Settings Settings;
/* devmouse.c */
kernel: cleanup the software mouse cursor mess The swcursor used a 32x32 image for saving/restoring screen contents for no reason. Add a doflush argument to swcursorhide(), so that disabling software cursor with a double buffered softscreen is properly hidden. The doflush parameter should be set to 0 in all other cases as swcursordraw() will flushes both (current and previours) locations. Make sure swcursorinit() and swcursorhide() clear the visibility flag, even when gscreen is nil. Remove the cursor locking and just do everything within the drawlock. All cursor functions such as curson(), cursoff() and setcursor() will be called drawlock locked. This also means &cursor can be read. Fix devmouse cursor reads and writes. We now have the global cursor variable that is only modified under the drawlock. So copy under drawlock. Move the pc software cursor implementation into vgasoft driver, so screen.c does not need to handle it as a special case. Remove unused functions such as drawhasclients().
2020-04-10 15:12:51 +00:00
extern Cursor cursor;
extern void mousetrack(int, int, int, ulong);
extern void absmousetrack(int, int, int, ulong);
extern Point mousexy(void);
Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
extern void mouseaccelerate(int);
extern void mouseresize(void);
reduce software cursor flickering the software cursor starts flickering and reacts bumby if a process spends most of its time with drawlock acquired because the timer interrupt thats supposed to redraw the cursor fails to acquire the lock at the time the timer fires. instead of trying to draw the cursor on the screen from a timer interrupt 30 times per second, devmouse now creates a process calling cursoron() and cursoroff() when the cursor needs to be redrawn. this allows the swcursor to schedule a redraw while holding the drawlock in swcursoravoid() and cursoron()/cursoroff() are now able to wait for a qlock (drawlock) because they get called from process context. the overall responsiveness is also improved with this change as the cursor redraw rate isnt limited to 30 times a second anymore.
2013-04-14 14:28:54 +00:00
extern void mouseredraw(void);
Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
/* screen.c */
devdraw: get rid of softscreen==0xa110c hack and make attachscreen() return Memdata* all screen implementations use a Memimage* internally for the framebuffer, so we can return a shared reference to its Memdata structure in attachscreen() instead of a framebuffer data pointer. this eleminates the softscreen == 0xa110c hack as we always use shared Memdata* now.
2019-01-30 17:22:52 +00:00
extern Memdata* attachscreen(Rectangle*, ulong*, int*, int*, int*);
Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
extern void flushmemscreen(Rectangle);
reduce software cursor flickering the software cursor starts flickering and reacts bumby if a process spends most of its time with drawlock acquired because the timer interrupt thats supposed to redraw the cursor fails to acquire the lock at the time the timer fires. instead of trying to draw the cursor on the screen from a timer interrupt 30 times per second, devmouse now creates a process calling cursoron() and cursoroff() when the cursor needs to be redrawn. this allows the swcursor to schedule a redraw while holding the drawlock in swcursoravoid() and cursoron()/cursoroff() are now able to wait for a qlock (drawlock) because they get called from process context. the overall responsiveness is also improved with this change as the cursor redraw rate isnt limited to 30 times a second anymore.
2013-04-14 14:28:54 +00:00
extern void cursoron(void);
extern void cursoroff(void);
Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
extern void setcursor(Cursor*);
extern int screensize(int, int, int, ulong);
extern int screenaperture(int, int);
extern Rectangle physgscreenr; /* actual monitor size */
extern void blankscreen(int);
/* devdraw.c */
extern void deletescreenimage(void);
extern void resetscreenimage(void);
extern void setscreenimageclipr(Rectangle);
extern void drawflush(void);
extern QLock drawlock;
#define ishwimage(i) 0 /* for ../port/devdraw.c */
reduce software cursor flickering the software cursor starts flickering and reacts bumby if a process spends most of its time with drawlock acquired because the timer interrupt thats supposed to redraw the cursor fails to acquire the lock at the time the timer fires. instead of trying to draw the cursor on the screen from a timer interrupt 30 times per second, devmouse now creates a process calling cursoron() and cursoroff() when the cursor needs to be redrawn. this allows the swcursor to schedule a redraw while holding the drawlock in swcursoravoid() and cursoron()/cursoroff() are now able to wait for a qlock (drawlock) because they get called from process context. the overall responsiveness is also improved with this change as the cursor redraw rate isnt limited to 30 times a second anymore.
2013-04-14 14:28:54 +00:00
/* swcursor.c */
kernel: cleanup the software mouse cursor mess The swcursor used a 32x32 image for saving/restoring screen contents for no reason. Add a doflush argument to swcursorhide(), so that disabling software cursor with a double buffered softscreen is properly hidden. The doflush parameter should be set to 0 in all other cases as swcursordraw() will flushes both (current and previours) locations. Make sure swcursorinit() and swcursorhide() clear the visibility flag, even when gscreen is nil. Remove the cursor locking and just do everything within the drawlock. All cursor functions such as curson(), cursoff() and setcursor() will be called drawlock locked. This also means &cursor can be read. Fix devmouse cursor reads and writes. We now have the global cursor variable that is only modified under the drawlock. So copy under drawlock. Move the pc software cursor implementation into vgasoft driver, so screen.c does not need to handle it as a special case. Remove unused functions such as drawhasclients().
2020-04-10 15:12:51 +00:00
void swcursorhide(int);
reduce software cursor flickering the software cursor starts flickering and reacts bumby if a process spends most of its time with drawlock acquired because the timer interrupt thats supposed to redraw the cursor fails to acquire the lock at the time the timer fires. instead of trying to draw the cursor on the screen from a timer interrupt 30 times per second, devmouse now creates a process calling cursoron() and cursoroff() when the cursor needs to be redrawn. this allows the swcursor to schedule a redraw while holding the drawlock in swcursoravoid() and cursoron()/cursoroff() are now able to wait for a qlock (drawlock) because they get called from process context. the overall responsiveness is also improved with this change as the cursor redraw rate isnt limited to 30 times a second anymore.
2013-04-14 14:28:54 +00:00
void swcursoravoid(Rectangle);
void swcursordraw(Point);
void swcursorload(Cursor *);
void swcursorinit(void);
Import sources from 2011-03-30 iso image
2011-03-30 12:46:40 +00:00
/* for communication between devdss.c and screen.c */
enum {
/* maxima */
Wid = 1280,
Ht = 1024,
Depth = 16, /* bits per pixel */
Pcolours = 256, /* Palette */
Pred = 0,
Pgreen = 1,
Pblue = 2,
Pblack = 0x00,
Pwhite = 0xFF,
/* settings indices */
Res800x600 = 0,
Res1024x768,
Res1280x1024,
Res1400x1050,
};
struct Settings {
uint wid; /* width in pixels */
uint ht; /* height in pixels */
uint freq; /* refresh frequency; only printed */
uint chan; /* draw chan */
/* shouldn't be needed? */
uint pixelclock;
/* horizontal timing */
uint hbp; /* back porch: pixel clocks before scan line */
uint hfp; /* front porch: pixel clocks after scan line */
uint hsw; /* sync pulse width: more hfp */
/* vertical timing */
uint vbp; /* back porch: line clocks before frame */
uint vfp; /* front porch: line clocks after frame */
uint vsw; /* sync pulse width: more vfp */
};
struct OScreen {
Cursor;
Settings *settings;
int open;
};
struct Omap3fb { /* frame buffer for 24-bit active color */
// short palette[256];
/* pixel data, even; base type's width must match Depth */
ushort pixel[Wid*Ht];
};
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