Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
rockbox/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c
Karl Kurbjun bda2e6d675 M:Robe 500 - Improve YUV blit speed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25228 a1c6a512-1295-4272-9138-f99709370657
2010-03-17 01:44:20 +00:00

747 lines
21 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Karl Kurbjun
*
* Some of this is based on the Cowon A2 Firmware release:
* http://www.cowonglobal.com/download/gnu/cowon_pmp_a2_src_1.59_GPL.tar.gz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "string.h"
#include "kernel.h"
#include "memory.h"
#include "mmu-arm.h"
#include "system-target.h"
#include "lcd.h"
#include "lcd-target.h"
#include "dsp-target.h"
#include "dsp/ipc.h"
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#define LCD_USE_DMA
#elif defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
#define LCD_USE_DMA
#endif
/* 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);
#if defined(HAVE_LCD_SLEEP)
static bool lcd_on = true;
#endif
/*
** These are imported from lcd-16bit.c
*/
extern unsigned fg_pattern;
extern unsigned bg_pattern;
#if defined(HAVE_LCD_SLEEP)
bool lcd_active(void)
{
return lcd_on;
}
#endif
#if defined(HAVE_LCD_SLEEP)
void lcd_sleep()
{
if (lcd_on)
{
lcd_on = false;
memset16(FRAME, 0xFFFF, LCD_WIDTH*LCD_HEIGHT);
sleep(HZ/5);
/* Disabling these saves another ~15mA */
IO_OSD_OSDWINMD0 &= ~(0x01);
IO_VID_ENC_VMOD &= ~(0x01);
/* Disabling the LCD saves ~50mA */
IO_GIO_BITCLR2=1<<4; /* pin 36 */
}
}
void lcd_awake(void)
{
/* "enabled" implies "powered" */
if (!lcd_on)
{
lcd_on=true;
IO_OSD_OSDWINMD0 |= 0x01;
IO_VID_ENC_VMOD |= 0x01;
sleep(2);
IO_GIO_BITSET2 = 1<<4;
lcd_update();
/* Wait long enough for a frame to be written */
sleep(HZ/10);
send_event(LCD_EVENT_ACTIVATION, NULL);
}
}
#endif
void lcd_enable_composite(bool enable)
{
/* Pin 39 appears to be related to the composite output */
/* 39: output, non-inverted, no-irq, falling edge, no-chat, normal */
dm320_set_io(39, false, false, false, false, false, 0x00);
short vidtemp = (IO_VID_ENC_VMOD & 0x7E8);
if(enable)
{
IO_GIO_BITSET2 = 0x80;
vidtemp |= 0x0003;
}
else
{
IO_GIO_BITCLR2 = 0x80;
vidtemp |= 0x2015;
IO_VID_ENC_DCLKCTL = 0x0800;
IO_VID_ENC_DCLKPTN0 = 0x0001;
}
IO_VID_ENC_VMOD = vidtemp;
}
/* Note this is expecting a screen size of 480x640 or 240x320, other screen
* sizes need to be considered for fudge factors
*/
#define LCD_FUDGE LCD_NATIVE_WIDTH%32
/* LCD init - based on code from ingenient-bsp/bootloader/board/dm320/splash.c
* and code by Catalin Patulea from the M:Robe 500i linux port
*/
void lcd_init_device(void)
{
unsigned int addr;
/* LCD related pins:
* 32 - LED above LCD
* 34 - R2 for 18 bit output
* 35 - Resolution (MO?)
* 36 - LCD power (INI?)
* 37 - Backlight and LCD power
* 38 - B2 for 18 bit output
*/
/* Setup main LCD pins */
/* 32: output, non-inverted, no-irq, falling edge, no-chat, normal */
dm320_set_io(32, false, false, false, false, false, 0x00);
IO_GIO_BITCLR2 = 1; /* Turn the LED off */
/* 34: output, non-inverted, no-irq, falling edge, no-chat, R2 */
dm320_set_io(34, false, false, false, false, false, 0x02);
/* 35: output, non-inverted, no-irq, falling edge, no-chat, normal */
dm320_set_io(35, false, false, false, false, false, 0x00);
#if LCD_NATIVE_HEIGHT > 320
IO_GIO_BITSET2 = 1<<3; /* Set LCD resolution to VGA */
#else
IO_GIO_BITCLR2 = 1<<3; /* Set LCD resolution to QVGA */
#endif
/* 36: output, non-inverted, no-irq, falling edge, no-chat, normal */
dm320_set_io(36, false, false, false, false, false, 0x00);
IO_GIO_BITSET2 = 0x10; /* LCD on */
/* 37: output, non-inverted, no-irq, falling edge, no-chat, normal */
dm320_set_io(37, false, false, false, false, false, 0x00);
IO_GIO_BITCLR2 = (1 << 5); /* output low (backlight/lcd on) */
/* 38: output, non-inverted, no-irq, falling edge, no-chat, B2 */
dm320_set_io(38, false, false, false, false, false, 0x02);
/* Enable clocks for display */
IO_CLK_MOD1 |= (CLK_MOD1_VENC | CLK_MOD1_OSD);
/* Clear the Frame */
memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
IO_OSD_OSDWINMD0 &= ~(0x0001);
IO_OSD_VIDWINMD &= ~(0x0001);
/* Setup the LCD controller */
IO_VID_ENC_VMOD = 0x2014;
IO_VID_ENC_VDCTL = 0x2000;
IO_VID_ENC_VDPRO = 0x0000;
IO_VID_ENC_SYNCTL = 0x100E;
IO_VID_ENC_HSPLS = 1; /* HSYNC pulse width */
IO_VID_ENC_VSPLS = 1; /* VSYNC pulse width */
/* These calculations support 640x480 and 320x240 (based on OF) */
IO_VID_ENC_HINT = LCD_NATIVE_WIDTH+LCD_NATIVE_WIDTH/3;
IO_VID_ENC_HSTART = LCD_NATIVE_WIDTH/6; /* Back porch */
IO_VID_ENC_HVALID = LCD_NATIVE_WIDTH; /* Data valid */
IO_VID_ENC_VINT = LCD_NATIVE_HEIGHT+8;
IO_VID_ENC_VSTART = 2;
IO_VID_ENC_VVALID = LCD_NATIVE_HEIGHT;
IO_VID_ENC_HSDLY = 0x0000;
IO_VID_ENC_VSDLY = 0x0000;
IO_VID_ENC_YCCTL = 0x0000;
IO_VID_ENC_RGBCTL = 0x0000;
IO_VID_ENC_RGBCLP = 0xFF00;
IO_VID_ENC_LNECTL = 0x0000;
IO_VID_ENC_CULLLNE = 0x0000;
IO_VID_ENC_LCDOUT = 0x0000;
IO_VID_ENC_BRTS = 0x0000;
IO_VID_ENC_BRTW = 0x0000;
IO_VID_ENC_ACCTL = 0x0000;
IO_VID_ENC_PWMP = 0x0000;
IO_VID_ENC_PWMW = 0x0000;
/* Setup the display */
IO_OSD_MODE = 0x00ff;
IO_OSD_ATRMD = 0x0000;
IO_OSD_RECTCUR = 0x0000;
IO_OSD_BASEPX = IO_VID_ENC_HSTART;
IO_OSD_BASEPY = IO_VID_ENC_VSTART;
addr = ((int)FRAME-CONFIG_SDRAM_START) / 32;
/* Setup the OSD windows */
/* Used for 565 RGB */
IO_OSD_OSDWINMD0 = 0x30C0;
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH *2 / 32;
IO_OSD_OSDWINADH = addr >> 16;
IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
IO_OSD_OSDWIN0XP = 0;
IO_OSD_OSDWIN0YP = 0;
/* read from OF */
IO_OSD_OSDWIN0XL = LCD_NATIVE_WIDTH;
IO_OSD_OSDWIN0YL = LCD_NATIVE_HEIGHT;
/* Unused */
IO_OSD_OSDWINMD1 = 0x10C0;
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_OSDWIN1OFST = LCD_NATIVE_WIDTH / 32+1;
#else
IO_OSD_OSDWIN1OFST = LCD_NATIVE_WIDTH / 32;
#endif
IO_OSD_OSDWIN1ADL = addr & 0xFFFF;
IO_OSD_OSDWIN1XP = 0;
IO_OSD_OSDWIN1YP = 0;
IO_OSD_OSDWIN1XL = LCD_NATIVE_WIDTH;
IO_OSD_OSDWIN1YL = LCD_NATIVE_HEIGHT;
IO_OSD_VIDWINMD = 0x0000;
addr = ((int)FRAME2-CONFIG_SDRAM_START +
2*(LCD_NATIVE_WIDTH*(LCD_NATIVE_HEIGHT-320)/2+
(LCD_NATIVE_WIDTH-240)/2))/ 32;
/* This is a bit messy, the LCD transfers appear to happen in chunks of 32
* pixels. (based on OF)
*/
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_VIDWIN0OFST = LCD_NATIVE_WIDTH * 2 / 32+1;
#else
IO_OSD_VIDWIN0OFST = LCD_NATIVE_WIDTH * 2 / 32;
#endif
IO_OSD_VIDWINADH = addr >> 16;
IO_OSD_VIDWIN0ADL = addr & 0xFFFF;
IO_OSD_VIDWIN0XP = 0;
IO_OSD_VIDWIN0YP = 0;
IO_OSD_VIDWIN0XL = LCD_NATIVE_WIDTH;
IO_OSD_VIDWIN0YL = LCD_NATIVE_HEIGHT;
IO_OSD_OSDWINMD0 |= 0x01;
lcd_enable_composite(false);
}
#if defined(HAVE_LCD_MODES)
void lcd_set_mode(int mode)
{
if(mode==LCD_MODE_YUV) {
/* Turn off the RGB buffer and enable the YUV buffer with zoom */
IO_OSD_OSDWINMD0 |= 0x04;
IO_OSD_VIDWINMD |= 0x01;
#if LCD_NATIVE_WIDTH > 240
IO_OSD_VIDWINMD |= (0x05<<2); /* This does a 2x zoom */
#endif
memset16(FRAME2, 0x0080, LCD_NATIVE_HEIGHT*(LCD_NATIVE_WIDTH+LCD_FUDGE));
} else if(mode==LCD_MODE_RGB565) {
/* Turn on the RGB window, set it to 16 bit and turn YUV window off */
IO_OSD_VIDWINMD &= ~(0x01);
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 16;
IO_OSD_OSDWINMD0 |= (1<<13);
IO_OSD_OSDWINMD0 &= ~0x04;
lcd_clear_display();
} else if(mode==LCD_MODE_PAL256) {
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 32+1;
#else
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 32;
#endif
IO_OSD_VIDWINMD &= ~(0x01);
IO_OSD_OSDWINMD0 &= ~(1<<13);
IO_OSD_OSDWINMD0 |= 0x01;
}
}
#endif
#if defined(LCD_USE_DMA)
static void dma_start_transfer16( char *src, int src_x, int src_y, int stride,
int x, int y,
int width, int height, int pix_width)
__attribute__ ((section(".icode")));
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
static void dma_start_transfer16( char *src, int src_x, int src_y, int stride,
int x, int y,
int width, int height, int pix_width) {
char *dst;
/* Addresses are relative to start of SDRAM */
src = src + (src_y*LCD_HEIGHT + src_x) * pix_width;
dst = (char *)FRAME + (y * LCD_HEIGHT + x) * pix_width;
/* Flush the area that is being copied from. */
clean_dcache_range(src, (stride*pix_width*width));
/* Addresses are relative to start of SDRAM */
src -= CONFIG_SDRAM_START;
dst -= CONFIG_SDRAM_START;
/* Enable Clocks */
IO_CLK_MOD1 |= 1<<8;
COP_CP_CLKC |= 0x0001;
/* ... */
COP_BUF_MUX1 = 0x0005;
/* Give the DMA access to the buffer */
COP_BUF_MUX0 = 0x0663;
/* Setup buffer offsets and transfer width/height */
COP_BUF_LOFST = width;
COP_DMA_XNUM = width;
COP_DMA_YNUM = 1;
/* ... */
COP_IMG_MODE = 0x0000;
/* Set the start address of buffer */
COP_BUF_ADDR = 0x0000;
/* Setup SDRAM stride */
COP_SDEM_LOFST = stride;
do {
int addr;
addr = (int)src;
addr >>= 1; /* Addresses are in 16-bit words */
/* Setup the registers to initiate the read from SDRAM */
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start */
COP_DMA_CTRL = 0x0001;
COP_DMA_CTRL |= 0x0003;
/* Wait for read to finish */
while(COP_DMA_CTRL & 0x02) {};
addr = (int)dst;
addr >>= 1;
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start transfer */
COP_DMA_CTRL = 0x0000;
COP_DMA_CTRL = 0x0002;
/* Wait for the transfer to complete */
while(COP_DMA_CTRL & 0x02) {};
/* Decrease height, update pointers/counters */
src += (stride*pix_width);
dst += (stride*pix_width);
height--;
} while(height>0);
}
#else
static void dma_start_transfer16( char *src, int src_x, int src_y, int stride,
int x, int y,
int width, int height, int pix_width) {
char *dst;
/* Calculate starting place */
src = src + (src_x*LCD_HEIGHT + src_y) * pix_width;
dst = (char *)FRAME + (LCD_HEIGHT*(LCD_WIDTH-1) - x * LCD_HEIGHT + y)
* pix_width;
/* Flush the area that is being copied from. */
clean_dcache_range(src, (stride*pix_width*width));
/* Addresses are relative to start of SDRAM */
src -= CONFIG_SDRAM_START;
dst -= CONFIG_SDRAM_START;
/* Enable Clocks */
IO_CLK_MOD1 |= 1<<8;
COP_CP_CLKC |= 0x0001;
/* ... */
COP_BUF_MUX1 = 0x0005;
/* Give the DMA access to the buffer */
COP_BUF_MUX0 = 0x0663;
/* Setup buffer offsets and transfer width/height */
COP_BUF_LOFST = height;
COP_DMA_XNUM = height;
COP_DMA_YNUM = 1;
/* ... */
COP_IMG_MODE = 0x0000;
/* Set the start address of buffer */
COP_BUF_ADDR = 0x0000;
/* Setup SDRAM stride */
COP_SDEM_LOFST = stride;
do {
int addr;
addr = (int)src;
addr >>= 1; /* Addresses are in 16-bit words */
/* Setup the registers to initiate the read from SDRAM */
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start */
COP_DMA_CTRL = 0x0001;
COP_DMA_CTRL |= 0x0003;
/* Wait for read to finish */
while(COP_DMA_CTRL & 0x02) {};
addr = (int)dst;
addr >>= 1;
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start transfer */
COP_DMA_CTRL = 0x0000;
COP_DMA_CTRL = 0x0002;
/* Wait for the transfer to complete */
while(COP_DMA_CTRL & 0x02) {};
/* update the width, update pointers/counters */
src += (stride*pix_width);
dst -= (stride*pix_width);
width--;
} while(width>0);
}
#endif
#endif
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
__attribute__ ((section(".icode")));
void lcd_update_rect(int x, int y, int width, int height)
{
if (!lcd_on)
return;
if ( (width | height) < 0)
return; /* nothing left to do */
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
width += x, x = 0; /* Clip left */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* Clip bottom */
if (y < 0)
height += y, y = 0; /* Clip top */
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#if defined(LCD_USE_DMA)
dma_start_transfer16( (char *)lcd_framebuffer, x, y, LCD_WIDTH,
x, y, width, height, 2);
#else
register fb_data *dst;
dst = (fb_data *)FRAME + LCD_WIDTH*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, &lcd_framebuffer[y][x], width, height);
}
else
{
/* Full width - copy as one line */
lcd_copy_buffer_rect(dst, &lcd_framebuffer[y][x], LCD_WIDTH*height, 1);
}
#endif
#else
#if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
#if defined(LCD_USE_DMA)
dma_start_transfer16( (char *)lcd_framebuffer, x, y, LCD_HEIGHT,
x, y, width, height, 2);
#else
fb_data *src;
fb_data *dst;
src = &lcd_framebuffer[0][0] + (x*LCD_HEIGHT + y);
dst = FRAME + (LCD_HEIGHT*(LCD_WIDTH-1) - x * LCD_HEIGHT + y);
while(width > 0) {
memcpy(src, dst, height);
src += LCD_HEIGHT;
dst -= LCD_HEIGHT;
width--;
}
#endif
#else
register fb_data *dst, *src;
src = &lcd_framebuffer[y][x];
dst=FRAME + (LCD_NATIVE_WIDTH*(LCD_NATIVE_HEIGHT-1))
- LCD_NATIVE_WIDTH*x + y ;
height--;
do {
register int c_width=width-1;
register fb_data *c_dst=dst;
do {
*c_dst=*src++;
c_dst-=LCD_NATIVE_WIDTH;
} while(c_width--);
src+=LCD_WIDTH-width;
dst++;
} while(height--);
#endif
#endif
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void) __attribute__ ((section(".icode")));
void lcd_update(void)
{
if (!lcd_on)
return;
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
#if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
void lcd_blit_pal256(unsigned char *src, int src_x, int src_y, int x, int y,
int width, int height) __attribute__ ((section(".icode")));
void lcd_blit_pal256(unsigned char *src, int src_x, int src_y, int x, int y,
int width, int height)
{
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#if defined(LCD_USE_DMA)
// char *dst=(char *)FRAME+x+y*(LCD_NATIVE_WIDTH+LCD_FUDGE);
dma_start_transfer16( src, src_x, src_y, LCD_WIDTH,
x, y, width, height, 1);
#else
char *dst=(char *)FRAME+x+y*(LCD_NATIVE_WIDTH+LCD_FUDGE);
src = src+src_x+src_y*LCD_WIDTH;
while(height--)
{
memcpy(dst, src, width);
dst = dst + ((LCD_WIDTH -x +LCD_FUDGE));
src = src + (LCD_WIDTH - x);
}
#endif
#else
char *dst=(char *)FRAME
+ (LCD_NATIVE_WIDTH+LCD_FUDGE)*(LCD_NATIVE_HEIGHT-1)
- (LCD_NATIVE_WIDTH+LCD_FUDGE)*x + y;
src=src+src_x+src_y*width;
while(height--)
{
register char *c_src=src;
register char *c_dst=dst;
register int c_width=width;
while (c_width--)
{
*c_dst = *c_src++;
c_dst -= (LCD_NATIVE_WIDTH+LCD_FUDGE);
}
dst++;
src+=width;
}
#endif
}
void lcd_pal256_update_pal(fb_data *palette)
{
unsigned char i;
for(i=0; i< 255; i++)
{
int y, cb, cr;
unsigned char r=RGB_UNPACK_RED_LCD(palette[i])<<3;
unsigned char g=RGB_UNPACK_GREEN_LCD(palette[i])<<2;
unsigned char b=RGB_UNPACK_BLUE_LCD(palette[i])<<3;
y = ((77 * r + 150 * g + 29 * b) >> 8);
cb = ((-43 * r - 85 * g + 128 * b) >> 8) + 128;
cr = ((128 * r - 107 * g - 21 * b) >> 8) + 128;
while(IO_OSD_MISCCTL&0x08)
{};
/* Write in y and cb */
IO_OSD_CLUTRAMYCB= ((unsigned char)y << 8) | (unsigned char)cb;
/* Write in the index and cr */
IO_OSD_CLUTRAMCR=((unsigned char)cr << 8) | i;
}
}
#endif
/* Performance function to blit a YUV bitmap directly to the LCD */
/* 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)
{
unsigned char const * yuv_src[3];
if (!lcd_on)
return;
/* y has to be on a 16 pixel boundary */
y &= ~0xF;
if( ((y | x | height | width ) < 0)
|| y>LCD_NATIVE_HEIGHT || x>LCD_NATIVE_WIDTH )
return;
if(y+height>LCD_NATIVE_WIDTH)
{
height=LCD_NATIVE_WIDTH-y;
}
if(x+width>LCD_NATIVE_HEIGHT)
{
width=LCD_NATIVE_HEIGHT-x;
}
/* Sorry, but width and height must be >= 2 or else */
width &= ~1;
height>>=1;
fb_data * dst = FRAME2
+ ((LCD_NATIVE_WIDTH+LCD_FUDGE)*(LCD_NATIVE_HEIGHT-1))
- (LCD_NATIVE_WIDTH+LCD_FUDGE)*x + y ;
/* Scope z */
{
off_t z;
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]);
}
int cbcr_remain=(stride>>1)-(width>>1);
int y_remain=(stride<<1)-width;
do
{
register int c_width=width;
register unsigned int *c_dst=(unsigned int*)dst;
do
{
register unsigned short Y=*((unsigned short*)yuv_src[0]);
register unsigned short Yst=*((unsigned short*)(yuv_src[0]+stride));
yuv_src[0]+=2;
register unsigned char Cb=*yuv_src[1]++;
register unsigned char Cr=*yuv_src[2]++;
*c_dst = (Yst<<24) | (Cr << 16) | ((Y&0xFF)<<8) | Cb;
*(c_dst - (LCD_NATIVE_WIDTH+LCD_FUDGE)/2) =
( (Yst&0xFF00)<<16) | (Cr << 16) | (Y&0xFF00) | Cb;
c_dst -= (LCD_NATIVE_WIDTH+LCD_FUDGE);
c_width -= 2;
}
while (c_width > 0);
yuv_src[0] += y_remain; /* Skip down two luma lines-width */
yuv_src[1] += cbcr_remain; /* Skip down one chroma line-width/2 */
yuv_src[2] += cbcr_remain;
dst+=2;
}
while (--height > 0);
}
void lcd_set_contrast(int val) {
(void) val;
// TODO:
}
void lcd_set_invert_display(bool yesno) {
(void) yesno;
// TODO:
}
void lcd_set_flip(bool yesno) {
(void) yesno;
// TODO:
}
Reference in a new issue View git blame Copy permalink