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picoLCDGraphic: update display regularly using a timer (*much* faster than redrawing the whole display after each changed widget; you may get the old behaviour by setting "Update 0")

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git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1094 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
mzuther
2010-01-24 19:45:27 +00:00
parent f622ea6ee2
commit 76db34b59e
2 changed files with 34 additions and 6 deletions
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30
drv_picoLCDGraphic.c
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@@ -53,6 +53,7 @@
#include "qprintf.h" #include "qprintf.h"
#include "udelay.h" #include "udelay.h"
#include "plugin.h" #include "plugin.h"
#include "timer.h"
#include "widget.h" #include "widget.h"
#include "widget_text.h" #include "widget_text.h"
#include "widget_icon.h" #include "widget_icon.h"
@@ -85,6 +86,11 @@
#define DEBUG(x) #define DEBUG(x)
#endif #endif
/* "dirty" marks the display to be redrawn from frame buffer */
static int dirty = 1;
/* timer for display redraw (set to zero for "direct updates") */
static int update = 0;
static char Name[] = "picoLCDGraphic"; static char Name[] = "picoLCDGraphic";
static unsigned char *pLG_framebuffer; static unsigned char *pLG_framebuffer;
@@ -200,8 +206,14 @@ static void drv_pLG_update_img()
unsigned char cs, line; unsigned char cs, line;
unsigned char pixel; unsigned char pixel;
info("In %s\n", __FUNCTION__); /* do not redraw display if frame buffer has not changed, unless
"direct updates" have been requested (update is zero) */
if ((!dirty) && (update > 0)) {
debug("Skipping %s\n", __FUNCTION__);
return;
}
info("In %s\n", __FUNCTION__);
for (cs = 0; cs < 4; cs++) { for (cs = 0; cs < 4; cs++) {
unsigned char chipsel = (cs << 2); //chipselect unsigned char chipsel = (cs << 2); //chipselect
@@ -259,6 +271,8 @@ static void drv_pLG_update_img()
} }
} }
/* mark display as up-to-date */
dirty = 0;
//drv_pLG_clear(); //drv_pLG_clear();
} }
@@ -286,6 +300,12 @@ static void drv_pLG_blit(const int row, const int col, const int height, const i
fprintf(stderr, "\n"); fprintf(stderr, "\n");
} }
*/ */
/* display needs to be redrawn from frame buffer */
dirty = 1;
/* if "direct updates" have been requested, redraw now */
if (update <= 0)
drv_pLG_update_img(); drv_pLG_update_img();
} }
@@ -442,6 +462,9 @@ static int drv_pLG_start(const char *section, const int quiet)
int value; int value;
char *s; char *s;
/* set display redraw interval (set to zero for "direct updates") */
cfg_number(section, "update", 200, 0, -1, &update);
s = cfg_get(section, "Size", NULL); s = cfg_get(section, "Size", NULL);
if (s == NULL || *s == '\0') { if (s == NULL || *s == '\0') {
error("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); error("%s: no '%s.Size' entry from %s", Name, section, cfg_source());
@@ -503,6 +526,11 @@ static int drv_pLG_start(const char *section, const int quiet)
} }
} }
/* setup a timer that regularly redraws the display from the frame
buffer (unless "direct updates" have been requested */
if (update > 0)
timer_add(drv_pLG_update_img, NULL, update, 0);
return 0; return 0;
} }