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work in progress for partial area scroll

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This commit is contained in:
Thomas Saunders 2012-06-25 21:29:51 +01:00
parent a51bb1bf5f
commit d96a491d32
2 changed files with 55 additions and 19 deletions
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24
console.c
View File

@ -84,7 +84,7 @@ msg_t lcdConsoleInit(GLCDConsole *console, uint16_t x0, uint16_t y0, uint16_t x1
/* calculate the size of the console in characters */
console->sx = (x1-x0);
console->sy = ((int16_t)((y1-y0)/console->fy))*console->fy;
console->sy = (((int16_t)((y1-y0)/console->fy))-1)*console->fy;
console->cx = 0;
console->cy = 0;
@ -102,13 +102,10 @@ msg_t lcdConsoleInit(GLCDConsole *console, uint16_t x0, uint16_t y0, uint16_t x1
console->font = font;
}
msg_t lcdConsoleUpdate(GLCDConsole *console) {
}
msg_t lcdConsolePut(GLCDConsole *console, char c) {
uint8_t width;
bool_t redraw = FALSE;
bool_t newline = FALSE;
if(c == '\n') {
/* clear the text at the end of the line */
@ -123,19 +120,26 @@ msg_t lcdConsolePut(GLCDConsole *console, char c) {
} else {
width = lcdMeasureChar(c, console->font);
if((console->cx + width) >= console->sx) {
chprintf(&SD1, "[1] ");
console->cx = 0;
console->cy += console->fy;
}
if((console->cy + console->fy) >= console->sy) {
if(
(console->cy > console->sy)) {
chprintf(&SD1, "[2] ");
if(newline)
chprintf(&SD1, "* ");
lcdVerticalScroll(console->x0, console->y0, console->x0 + console->sx,
console->y0 + console->sy, console->fy);
/* reset the cursor */
console->cx = 0;
while((console->cy) >= console->sy)
console->cy -= console->fy;
console->cy = console->sy;
} else if(newline) {
chprintf(&SD1, "[3] ");
console->cy += console->fy;
}
//chprintf(&SD1, "'%c' at [%d, %d]\r\n", c, console->x0 + console->cx, console->y0 + console->cy);
lcdDrawChar(console->x0 + console->cx, console->y0 + console->cy, c,
console->font, console->color, console->bkcolor, solid);

50
drivers/lcd/ssd1289_lld.c
View File

@ -6,6 +6,9 @@ uint8_t orientation;
uint16_t DeviceCode;
extern uint16_t lcd_width, lcd_height;
/* TODO: use max(height, width) */
static uint16_t buf[SCREEN_HEIGHT];
#ifdef LCD_USE_GPIO
static __inline void lld_lcdWriteIndex(uint16_t index) {
Clr_RS;
@ -131,6 +134,21 @@ __inline void lld_lcdWriteStream(uint16_t *buffer, uint16_t size) {
for(i = 0; i < size; i++)
LCD_RAM = buffer[i];
}
__inline void lld_lcdReadStreamStart(void) {
LCD_REG = 0x0022;
}
__inline void lld_lcdReadStreamStop(void) {
}
__inline void lld_lcdReadStream(uint16_t *buffer, size_t size) {
uint16_t i;
for(i = 0; i < size; i++) {
buffer[i] = LCD_RAM;
}
}
#endif
#ifdef LCD_USE_SPI
@ -146,10 +164,10 @@ static __inline void lcdDelay(uint16_t us) {
void lld_lcdSetCursor(uint16_t x, uint16_t y) {
if(PORTRAIT) {
lld_lcdWriteReg(0x004e, x);
lld_lcdWriteReg(0x004f, y);
lld_lcdWriteReg(0x004f, y);
} else if(LANDSCAPE) {
lld_lcdWriteReg(0x004e, y);
lld_lcdWriteReg(0x004f, x);
lld_lcdWriteReg(0x004f, x);
}
}
@ -336,17 +354,31 @@ uint16_t lld_lcdGetWidth(void) {
#include "chprintf.h"
/* a positive lines value shifts the screen up, negative down */
void lld_lcdVerticalScroll(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, int16_t lines) {
uint16_t row0, row1;
uint16_t i;
lld_lcdSetWindow(x0, y0, x1, y1);
/* if negative shift, then subtract from the height of the area */
lines = (lines < 0) ? ((y1-y0) + lines) : lines;
for(i = 0; i < ((y1-y0) - abs(lines)); i++) {
if(lines > 0) {
row0 = y0 + i + lines;
row1 = y0 + i;
} else {
row0 = (y1 - i - 1) + lines;
row1 = (y1 - i - 1);
}
/* read row0 into the buffer and then write at row1*/
lld_lcdSetWindow(x0, row0, x1, row0);
lld_lcdReadStreamStart();
lld_lcdReadStream(buf, x1-x0);
lld_lcdReadStreamStop();
/* driver accepts only 9 bit line value */
lld_lcdWriteReg(0x0041, (uint16_t)lines & 0x01FF);
/* enable the scroll */
lld_lcdWriteReg(0x0007, (0x0001 << 9) | 0x0133);
lld_lcdSetWindow(x0, row1, x1, row1);
lld_lcdWriteStreamStart();
lld_lcdWriteStream(buf, x1-x0);
lld_lcdWriteStreamStop();
}
}
#endif