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Collect some of the memory frame LCD C code.

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For this commit: Sansa e200v1, Gigabeat F, Gigabeat S and Mini2440 are
changed over. Quite a number of other targets probably can be as well.

General LCD code is moved out of the target drivers into
drivers/lcd-memframe.c.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31311 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2011-12-15 23:07:11 +00:00
parent f53b8ff959
commit 62facd1ff2
9 changed files with 246 additions and 443 deletions
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158
firmware/target/arm/imx31/gigabeat-s/lcd-gigabeat-s.c
View file

@ -18,32 +18,20 @@
* KIND, either express or implied.
*
****************************************************************************/
#include <sys/types.h>
#include "inttypes.h"
#include "config.h"
#include "system.h"
#include "cpu.h"
#include "spi-imx31.h"
#include "mc13783.h"
#include "string.h"
#include "lcd.h"
#include "kernel.h"
#include "lcd-target.h"
#include "backlight-target.h"
#include "spi-imx31.h"
#include "mc13783.h"
extern void lcd_set_active(bool active);
#define MAIN_LCD_IDMAC_CHANNEL 14
#define LCDADDR(x, y) (&lcd_framebuffer[(y)][(x)])
/* Copies a rectangle from one framebuffer to another. Can be used in
single transfer mode with width = num pixels, and height = 1 which
allows a full-width rectangle to be copied more efficiently. */
extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
int width, int height);
static bool lcd_on = true;
static bool lcd_powered = true;
static unsigned lcd_yuv_options = 0;
/* Settings shadow regs */
#ifdef HAVE_LCD_CONTRAST
static uint8_t reg0x0b = 0x2f;
@ -184,44 +172,6 @@ void INIT_ATTR lcd_init_device(void)
lcd_sync_settings();
}
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
{
fb_data *dst, *src;
if (!lcd_on)
return;
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
width += x, x = 0; /* Clip left */
if (width <= 0)
return; /* nothing left to do */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* Clip bottom */
if (y < 0)
height += y, y = 0; /* Clip top */
if (height <= 0)
return; /* nothing left to do */
dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
src = &lcd_framebuffer[y][x];
/* Copy part of the Rockbox framebuffer to the second framebuffer */
if (width < LCD_WIDTH)
{
/* Not full width - do line-by-line */
lcd_copy_buffer_rect(dst, src, width, height);
}
else
{
/* Full width - copy as one line */
lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
}
}
void lcd_sleep(void)
{
if (!lcd_powered)
@ -235,7 +185,7 @@ void lcd_sleep(void)
void lcd_enable(bool state)
{
if (state == lcd_on)
if (state == lcd_active())
return;
if (state)
@ -245,99 +195,13 @@ void lcd_enable(bool state)
IPU_IDMAC_CHA_EN |= 1ul << MAIN_LCD_IDMAC_CHANNEL;
lcd_sync_settings();
sleep(HZ/50);
lcd_on = true;
lcd_set_active(true);
lcd_update();
send_event(LCD_EVENT_ACTIVATION, NULL);
}
else
{
lcd_on = false;
}
}
bool lcd_active(void)
{
return lcd_on;
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void)
{
if (!lcd_on)
return;
lcd_copy_buffer_rect((fb_data *)FRAME, &lcd_framebuffer[0][0],
LCD_WIDTH*LCD_HEIGHT, 1);
}
void lcd_yuv_set_options(unsigned options)
{
lcd_yuv_options = options;
}
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
extern void lcd_write_yuv420_lines(fb_data *dst,
unsigned char const * const src[3],
int width,
int stride);
extern void lcd_write_yuv420_lines_odither(fb_data *dst,
unsigned char const * const src[3],
int width,
int stride,
int x_screen, /* To align dither pattern */
int y_screen);
/* Performance function to blit a YUV bitmap directly to the LCD */
/* For the Gigabeat - show it rotated */
/* So the LCD_WIDTH is now the height */
void lcd_blit_yuv(unsigned char * const src[3],
int src_x, int src_y, int stride,
int x, int y, int width, int height)
{
/* Caches for chroma data so it only need be recaculated every other
line */
unsigned char const * yuv_src[3];
off_t z;
if (!lcd_on)
return;
/* Sorry, but width and height must be >= 2 or else */
width &= ~1;
height >>= 1;
y = LCD_WIDTH - 1 - y;
fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + y;
z = stride*src_y;
yuv_src[0] = src[0] + z + src_x;
yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
if (lcd_yuv_options & LCD_YUV_DITHER)
{
do
{
lcd_write_yuv420_lines_odither(dst, yuv_src, width, stride, y, x);
yuv_src[0] += stride << 1; /* Skip down two luma lines */
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
yuv_src[2] += stride >> 1;
dst -= 2;
y -= 2;
}
while (--height > 0);
}
else
{
do
{
lcd_write_yuv420_lines(dst, yuv_src, width, stride);
yuv_src[0] += stride << 1; /* Skip down two luma lines */
yuv_src[1] += stride >> 1; /* Skip down one chroma line */
yuv_src[2] += stride >> 1;
dst -= 2;
}
while (--height > 0);
lcd_set_active(false);
}
}
@ -346,7 +210,7 @@ void lcd_set_contrast(int val)
{
reg0x0b = val & 0x3f;
if (!lcd_on)
if (!lcd_active())
return;
lcd_write_reg(0x0b, reg0x0b);
@ -363,7 +227,7 @@ void lcd_set_invert_display(bool yesno)
{
reg0x27 = yesno ? 0x10 : 0x00;
if (!lcd_on)
if (!lcd_active())
return;
lcd_write_reg(0x27, reg0x27);
@ -375,7 +239,7 @@ void lcd_set_flip(bool yesno)
{
reg0x06 = yesno ? 0x02 : 0x04;
if (!lcd_on)
if (!lcd_active())
return;
lcd_write_reg(0x06, reg0x06);

4
firmware/target/arm/imx31/gigabeat-s/lcd-target.h
View file

@ -21,8 +21,6 @@
#ifndef LCD_TARGET_H
#define LCD_TARGET_H
#if 0
void lcd_enable(bool state);
#endif
#define LCD_FRAMEBUF_ADDR(col, row) ((fb_data *)FRAME + (row)*LCD_WIDTH + (col))
#endif /* LCD_TARGET_H */