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Add putarea() method for st7789

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add st7789_putarea()

Signed-off-by: Peter Bee <bijunda1@xiaomi.com>
This commit is contained in:
Peter Bee 2021-07-02 12:19:34 +08:00 committed by Xiang Xiao
parent ec042c3dc7
commit 23746d171f
1 changed files with 38 additions and 0 deletions
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38
drivers/lcd/st7789.c
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@ -197,6 +197,9 @@ static void st7789_fill(FAR struct st7789_dev_s *dev, uint16_t color);
static int st7789_putrun(fb_coord_t row, fb_coord_t col,
FAR const uint8_t *buffer, size_t npixels);
static int st7789_putarea(fb_coord_t row_start, fb_coord_t row_end,
fb_coord_t col_start, fb_coord_t col_end,
FAR const uint8_t *buffer);
#ifndef CONFIG_LCD_NOGETRUN
static int st7789_getrun(fb_coord_t row, fb_coord_t col,
FAR uint8_t *buffer, size_t npixels);
@ -519,6 +522,40 @@ static int st7789_putrun(fb_coord_t row, fb_coord_t col,
return OK;
}
/****************************************************************************
* Name: st7789_putarea
*
* Description:
* This method can be used to write a partial area to the LCD:
*
* row_start - Starting row to write to (range: 0 <= row < yres)
* row_end - Ending row to write to (range: row_start <= row < yres)
* col_start - Starting column to write to (range: 0 <= col <= xres)
* col_end - Ending column to write to
* (range: col_start <= col_end < xres)
* buffer - The buffer containing the area to be written to the LCD
*
****************************************************************************/
static int st7789_putarea(fb_coord_t row_start, fb_coord_t row_end,
fb_coord_t col_start, fb_coord_t col_end,
FAR const uint8_t *buffer)
{
FAR struct st7789_dev_s *priv = &g_lcddev;
FAR const uint16_t *src = (FAR const uint16_t *)buffer;
ginfo("row_start: %d row_end: %d col_start: %d col_end: %d\n",
row_start, row_end, col_start, col_end);
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
st7789_setarea(priv, col_start, row_start, col_end, row_end);
st7789_wrram(priv, src,
(row_end - row_start + 1) * (col_end - col_start + 1));
return OK;
}
/****************************************************************************
* Name: st7789_getrun
*
@ -590,6 +627,7 @@ static int st7789_getplaneinfo(FAR struct lcd_dev_s *dev,
lcdinfo("planeno: %d bpp: %d\n", planeno, ST7789_BPP);
pinfo->putrun = st7789_putrun; /* Put a run into LCD memory */
pinfo->putarea = st7789_putarea; /* Put an area into LCD */
#ifndef CONFIG_LCD_NOGETRUN
pinfo->getrun = st7789_getrun; /* Get a run from LCD memory */
#endif