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authorBertrik Sikken <bertrik@sikken.nl>2011-10-30 20:35:03 +0000
committerBertrik Sikken <bertrik@sikken.nl>2011-10-30 20:35:03 +0000
commitd11e5201dccfb74f2c445500958b47d9ddcee741 (patch)
tree1d8142b01f6c700ca0dff743aa9a0f6fa2b1b6ef /firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
parenteb7cf73dcbc7fff1a17aee93656e30c4a9f3f9f3 (diff)
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Sansa clip zip: implement lcd_write_data function
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30872 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c')
-rw-r--r--firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
index 49a8014005..cc30e19fcf 100644
--- a/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
+++ b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
@@ -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);
}
}