fdbc01c6e2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15254 a1c6a512-1295-4272-9138-f99709370657
224 lines
6.1 KiB
C
224 lines
6.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 by Karl Kurbjun
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*
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* Some of this is based on the Cowon A2 Firmware release:
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* http://www.cowonglobal.com/download/gnu/cowon_pmp_a2_src_1.59_GPL.tar.gz
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "cpu.h"
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#include "string.h"
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#include "lcd.h"
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#include "kernel.h"
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#include "memory.h"
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#include "system-target.h"
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/* Copies a rectangle from one framebuffer to another. Can be used in
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single transfer mode with width = num pixels, and height = 1 which
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allows a full-width rectangle to be copied more efficiently. */
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extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
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int width, int height);
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static volatile bool lcd_on = true;
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volatile bool lcd_poweroff = false;
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/*
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** These are imported from lcd-16bit.c
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*/
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extern unsigned fg_pattern;
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extern unsigned bg_pattern;
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bool lcd_enabled(void)
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{
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return lcd_on;
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}
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/* LCD init - based on code from ingenient-bsp/bootloader/board/dm320/splash.c
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* and code by Catalin Patulea from the M:Robe 500i linux port
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*/
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void lcd_init_device(void)
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{
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unsigned int addr;
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/* Clear the Frame */
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memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
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outw(0x00ff, IO_OSD_MODE);
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outw(0x0002, IO_OSD_VIDWINMD);
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outw(0x2001, IO_OSD_OSDWINMD0);
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outw(0x0002, IO_OSD_OSDWINMD1);
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outw(0x0000, IO_OSD_ATRMD);
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outw(0x0000, IO_OSD_RECTCUR);
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outw((480*2) / 32, IO_OSD_OSDWIN0OFST);
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addr = ((int)FRAME-CONFIG_SDRAM_START) / 32;
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outw(addr >> 16, IO_OSD_OSDWINADH);
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outw(addr & 0xFFFF, IO_OSD_OSDWIN0ADL);
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outw(80, IO_OSD_BASEPX);
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outw(2, IO_OSD_BASEPY);
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outw(0, IO_OSD_OSDWIN0XP);
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outw(0, IO_OSD_OSDWIN0YP);
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outw(480, IO_OSD_OSDWIN0XL);
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outw(640, IO_OSD_OSDWIN0YL);
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}
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/* Update a fraction of the display. */
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void lcd_update_rect(int x, int y, int width, int height)
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{
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fb_data *dst, *src;
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int yc;
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if (!lcd_on)
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return;
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if (x + width > LCD_WIDTH)
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width = LCD_WIDTH - x; /* Clip right */
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if (x < 0)
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width += x, x = 0; /* Clip left */
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if (width <= 0)
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return; /* nothing left to do */
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if (y + height > LCD_HEIGHT)
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height = LCD_HEIGHT - y; /* Clip bottom */
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if (y < 0)
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height += y, y = 0; /* Clip top */
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if (height <= 0)
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return; /* nothing left to do */
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dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
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src = &lcd_framebuffer[y][x];
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/* Copy part of the Rockbox framebuffer to the second framebuffer */
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if (width < LCD_WIDTH)
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{
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/* Not full width - do line-by-line */
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lcd_copy_buffer_rect(dst, src, width, height);
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}
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else
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{
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/* Full width - copy as one line */
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lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
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}
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}
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void lcd_enable(bool state)
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{
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(void)state;
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}
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/* Update the display.
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This must be called after all other LCD functions that change the display. */
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void lcd_update(void)
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{
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if (!lcd_on)
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return;
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#if defined(SCREEN_ROTATE)
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lcd_copy_buffer_rect((fb_data *)FRAME, &lcd_framebuffer[0][0],
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LCD_WIDTH*LCD_HEIGHT, 1);
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#else
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register fb_data *dst, *src=&lcd_framebuffer[0][0];
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register unsigned int x, y;
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register short *start=FRAME + LCD_HEIGHT*(LCD_WIDTH-1)+1;
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for(y=0; y<LCD_HEIGHT;y++)
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{
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dst=start+y;
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for(x=0; x<LCD_WIDTH; x++)
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{
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*dst=*src++;
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dst-=LCD_HEIGHT;
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}
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}
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#endif
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}
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/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
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extern void lcd_write_yuv420_lines(fb_data *dst,
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unsigned char chroma_buf[LCD_HEIGHT/2*3],
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unsigned char const * const src[3],
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int width,
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int stride);
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/* Performance function to blit a YUV bitmap directly to the LCD */
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/* For the Gigabeat - show it rotated */
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/* So the LCD_WIDTH is now the height */
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void lcd_yuv_blit(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height)
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{
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/* Caches for chroma data so it only need be recaculated every other
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line */
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/* unsigned char chroma_buf[LCD_HEIGHT/2*3];*/ /* 480 bytes */
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unsigned char const * yuv_src[3];
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off_t z;
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if (!lcd_on)
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return;
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/* Sorry, but width and height must be >= 2 or else */
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width &= ~1;
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height >>= 1;
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fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + (LCD_WIDTH - y) - 1;
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z = stride*src_y;
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yuv_src[0] = src[0] + z + src_x;
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yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
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yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
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do
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{
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/* lcd_write_yuv420_lines(dst, chroma_buf, yuv_src, width,
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stride);
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*/
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yuv_src[0] += stride << 1; /* Skip down two luma lines */
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yuv_src[1] += stride >> 1; /* Skip down one chroma line */
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yuv_src[2] += stride >> 1;
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dst -= 2;
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}
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while (--height > 0);
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}
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void lcd_set_contrast(int val) {
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(void) val;
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// TODO:
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}
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void lcd_set_invert_display(bool yesno) {
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(void) yesno;
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// TODO:
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}
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void lcd_blit(const fb_data* data, int bx, int y, int bwidth,
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int height, int stride)
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{
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(void) data;
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(void) bx;
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(void) y;
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(void) bwidth;
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(void) height;
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(void) stride;
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//TODO:
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}
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void lcd_set_flip(bool yesno) {
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(void) yesno;
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// TODO:
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}
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