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Sansa clip zip: implement lcd_write_data function

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30872 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2011-10-30 20:35:03 +00:00
parent eb7cf73dcb
commit d11e5201dc
1 changed files with 15 additions and 9 deletions
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24
firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
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@ -365,12 +365,22 @@ void oled_brightness(int brightness)
}
}
/* Writes framebuffer data */
void lcd_write_data(const fb_data *data, int count)
{
fb_data pixel;
while (count--) {
pixel = *data++;
lcd_write_dat((pixel >> 0) & 0xFF);
lcd_write_dat((pixel >> 8) & 0xFF);
}
}
/* Updates a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
{
fb_data *ptr;
fb_data pixel;
int row, col;
int row;
int x_end = x + width;
int y_end = y + height;
@ -393,6 +403,7 @@ void lcd_update_rect(int x, int y, int width, int height)
if (y_end > LCD_HEIGHT) {
y_end = LCD_HEIGHT;
}
width = x_end - x;
/* setup GRAM write window */
lcd_setup_rect(x, x_end - 1, y, y_end - 1);
@ -400,12 +411,7 @@ void lcd_update_rect(int x, int y, int width, int height)
/* write to GRAM */
lcd_write_cmd((lcd_type == 0) ? 0x08 : 0x0C); /* DDRAM_DATA_ACCESS_PORT */
for (row = y; row < y_end; row++) {
ptr = &lcd_framebuffer[row][x];
for (col = x; col < x_end; col++) {
pixel = *ptr++;
lcd_write_dat((pixel >> 0) & 0xFF);
lcd_write_dat((pixel >> 8) & 0xFF);
}
lcd_write_data(&lcd_framebuffer[row][x], width);
}
}