forked from len0rd/rockbox
FS#10118 & FS#10165 : lcd_blit_yuv() for Sansa Fuze & Sansa e200v2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20919 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré
parent
f2c18d6922
commit
b1d03ccee7
8 changed files with 681 additions and 51 deletions
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@ -128,7 +128,7 @@ static const struct plugin_api rockbox_api = {
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lcd_bitmap_transparent,
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lcd_bitmap_transparent,
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lcd_blit_yuv,
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lcd_blit_yuv,
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630)
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630) || defined(SANSA_FUZE) || defined(SANSA_E200V2)
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lcd_yuv_set_options,
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lcd_yuv_set_options,
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#endif
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#endif
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#elif (LCD_DEPTH < 4) && !defined(SIMULATOR)
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#elif (LCD_DEPTH < 4) && !defined(SIMULATOR)
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@ -210,7 +210,7 @@ struct plugin_api {
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int src_x, int src_y, int stride,
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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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int x, int y, int width, int height);
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630)
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630) || defined(SANSA_FUZE) || defined(SANSA_E200V2)
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void (*lcd_yuv_set_options)(unsigned options);
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void (*lcd_yuv_set_options)(unsigned options);
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#endif
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#endif
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#elif (LCD_DEPTH < 4) && !defined(SIMULATOR)
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#elif (LCD_DEPTH < 4) && !defined(SIMULATOR)
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@ -205,7 +205,7 @@ static struct configdata config[] =
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NULL},
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NULL},
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{TYPE_INT, 0, MPEG_RESUME_NUM_OPTIONS,
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{TYPE_INT, 0, MPEG_RESUME_NUM_OPTIONS,
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{ .int_p = &settings.resume_options }, "Resume options", NULL},
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{ .int_p = &settings.resume_options }, "Resume options", NULL},
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200)
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) || defined(SANSA_FUZE) || defined(SANSA_E200V2)
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{TYPE_INT, 0, INT_MAX, { .int_p = &settings.displayoptions },
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{TYPE_INT, 0, INT_MAX, { .int_p = &settings.displayoptions },
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"Display options", NULL},
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"Display options", NULL},
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#endif
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#endif
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@ -6,7 +6,8 @@
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#define SETTINGS_FILENAME "mpegplayer.cfg"
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#define SETTINGS_FILENAME "mpegplayer.cfg"
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630)
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|| defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630) \
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|| defined(SANSA_FUZE) || defined(SANSA_E200V2)
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#define MPEG_OPTION_DITHERING_ENABLED 1
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#define MPEG_OPTION_DITHERING_ENABLED 1
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#endif
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#endif
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@ -1108,6 +1108,7 @@ target/arm/as3525/sansa-clip/powermgmt-clip.c
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#ifdef SANSA_E200V2
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#ifdef SANSA_E200V2
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#ifndef SIMULATOR
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#ifndef SIMULATOR
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target/arm/as3525/sansa-e200v2/lcd-e200v2.c
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target/arm/as3525/sansa-e200v2/lcd-e200v2.c
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target/arm/as3525/lcd-as-e200v2-fuze.S
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target/arm/as3525/sansa-e200v2/button-e200v2.c
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target/arm/as3525/sansa-e200v2/button-e200v2.c
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target/arm/as3525/backlight-e200v2-fuze.c
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target/arm/as3525/backlight-e200v2-fuze.c
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#ifndef BOOTLOADER
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#ifndef BOOTLOADER
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@ -1142,6 +1143,7 @@ target/arm/as3525/sansa-m200v4/powermgmt-m200v4.c
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#ifndef SIMULATOR
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#ifndef SIMULATOR
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target/arm/as3525/sansa-fuze/button-fuze.c
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target/arm/as3525/sansa-fuze/button-fuze.c
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target/arm/as3525/sansa-fuze/lcd-fuze.c
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target/arm/as3525/sansa-fuze/lcd-fuze.c
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target/arm/as3525/lcd-as-e200v2-fuze.S
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target/arm/as3525/backlight-e200v2-fuze.c
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target/arm/as3525/backlight-e200v2-fuze.c
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#ifndef BOOTLOADER
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#ifndef BOOTLOADER
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target/arm/as3525/powermgmt-as3525.c
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target/arm/as3525/powermgmt-as3525.c
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501
firmware/target/arm/as3525/lcd-as-e200v2-fuze.S
Normal file
501
firmware/target/arm/as3525/lcd-as-e200v2-fuze.S
Normal file
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@ -0,0 +1,501 @@
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/***************************************************************************
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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 Jens Arnold
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* Heavily based on lcd-as-memframe.c by Michael Sevakis
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* Adapted for Sansa Fuze/e200v2 by Rafaël Carré
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#define DBOP_BUSY (1<<10)
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/****************************************************************************
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* void lcd_write_yuv_420_lines(unsigned char const * const src[3],
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* int width,
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* int stride);
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*
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* |R| |1.000000 -0.000001 1.402000| |Y'|
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* |G| = |1.000000 -0.334136 -0.714136| |Pb|
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* |B| |1.000000 1.772000 0.000000| |Pr|
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* Scaled, normalized, rounded and tweaked to yield RGB 565:
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* |R| |74 0 101| |Y' - 16| >> 9
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* |G| = |74 -24 -51| |Cb - 128| >> 8
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* |B| |74 128 0| |Cr - 128| >> 9
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*
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* Write four RGB565 pixels in the following order on each loop:
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* 1 3 + > down
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* 2 4 \/ left
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*/
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.section .icode, "ax", %progbits
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.align 2
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.global lcd_write_yuv420_lines
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.type lcd_write_yuv420_lines, %function
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lcd_write_yuv420_lines:
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@ r0 = yuv_src
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@ r1 = width
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@ r2 = stride
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stmfd sp!, { r4-r12 } @ save non-scratch
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ldmia r0, { r4, r5, r6 } @ r4 = yuv_src[0] = Y'_p
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@ r5 = yuv_src[1] = Cb_p
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@ r6 = yuv_src[2] = Cr_p
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@ r0 = scratch
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sub r2, r2, #1 @
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mov r3, #0xC8000000 @
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orr r3, r3, #0x120000 @ r3 = DBOP_BASE
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10: @ loop line @
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ldrb r7, [r4], #1 @ r7 = *Y'_p++;
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ldrb r8, [r5], #1 @ r8 = *Cb_p++;
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ldrb r9, [r6], #1 @ r9 = *Cr_p++;
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@
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sub r7, r7, #16 @ r7 = Y = (Y' - 16)*74
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add r12, r7, r7, asl #2 @ actually (Y' - 16)*37 and shift right
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add r7, r12, r7, asl #5 @ by one less when adding - same for all
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@
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sub r8, r8, #128 @ Cb -= 128
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sub r9, r9, #128 @ Cr -= 128
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@
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add r10, r9, r9, asl #1 @ r10 = Cr*51 + Cb*24
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add r10, r10, r10, asl #4 @
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add r10, r10, r8, asl #3 @
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add r10, r10, r8, asl #4 @
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@
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add r11, r9, r9, asl #2 @ r9 = Cr*101
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add r11, r11, r9, asl #5 @
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add r9, r11, r9, asl #6 @
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@
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add r8, r8, #2 @ r8 = bu = (Cb*128 + 128) >> 8
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mov r8, r8, asr #2 @
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add r9, r9, #256 @ r9 = rv = (r9 + 256) >> 9
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mov r9, r9, asr #9 @
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rsb r10, r10, #128 @ r10 = guv = (-r10 + 128) >> 8
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mov r10, r10, asr #8 @
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@ compute R, G, and B
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add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu
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add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
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add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
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@
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orr r12, r0, r11 @ check if clamping is needed...
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orr r12, r12, r7, asr #1 @ ...at all
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cmp r12, #31 @
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bls 15f @ no clamp @
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cmp r0, #31 @ clamp b
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mvnhi r0, r0, asr #31 @
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andhi r0, r0, #31 @
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cmp r11, #31 @ clamp r
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mvnhi r11, r11, asr #31 @
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andhi r11, r11, #31 @
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cmp r7, #63 @ clamp g
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mvnhi r7, r7, asr #31 @
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andhi r7, r7, #63 @
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15: @ no clamp @
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@
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ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
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@
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orr r0, r0, r11, lsl #11 @ r0 = (r << 11) | b
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orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b
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strh r0, [r3, #0x10] @ write pixel
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1: @ busy @
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ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
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tst r7, #DBOP_BUSY @ fifo not empty?
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beq 1b @
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@
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sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
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add r12, r7, r7, asl #2 @
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add r7, r12, r7, asl #5 @
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@ compute R, G, and B
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add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu
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add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
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add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
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@
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orr r12, r0, r11 @ check if clamping is needed...
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orr r12, r12, r7, asr #1 @ ...at all
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cmp r12, #31 @
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bls 15f @ no clamp @
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cmp r0, #31 @ clamp b
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mvnhi r0, r0, asr #31 @
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andhi r0, r0, #31 @
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cmp r11, #31 @ clamp r
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mvnhi r11, r11, asr #31 @
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andhi r11, r11, #31 @
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cmp r7, #63 @ clamp g
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mvnhi r7, r7, asr #31 @
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andhi r7, r7, #63 @
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15: @ no clamp @
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@
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ldrb r12, [r4], #1 @ r12 = Y' = *(Y'_p++)
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@
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orr r0, r0, r11, lsl #11 @ r0 = (r << 11) | b
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orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b
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strh r0, [r3, #0x10] @ write pixel
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1: @ busy @
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ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
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tst r7, #DBOP_BUSY @ fifo not empty?
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beq 1b @
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@
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sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
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add r12, r7, r7, asl #2 @
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add r7, r12, r7, asl #5 @
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@ compute R, G, and B
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add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu
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add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
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add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
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@
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orr r12, r0, r11 @ check if clamping is needed...
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orr r12, r12, r7, asr #1 @ ...at all
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cmp r12, #31 @
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bls 15f @ no clamp @
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cmp r0, #31 @ clamp b
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mvnhi r0, r0, asr #31 @
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andhi r0, r0, #31 @
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cmp r11, #31 @ clamp r
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mvnhi r11, r11, asr #31 @
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andhi r11, r11, #31 @
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cmp r7, #63 @ clamp g
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mvnhi r7, r7, asr #31 @
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andhi r7, r7, #63 @
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15: @ no clamp @
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@
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ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
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@
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@
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orr r0, r0, r11, lsl #11 @ r0 = (r << 11) | b
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orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b
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strh r0, [r3, #0x10] @ write pixel
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1: @ busy @
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ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
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tst r7, #DBOP_BUSY @ fifo not empty?
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beq 1b @
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@
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sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
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add r12, r7, r7, asl #2 @
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add r7, r12, r7, asl #5 @
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@ compute R, G, and B
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add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu
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add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
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add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
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@
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orr r12, r0, r11 @ check if clamping is needed...
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orr r12, r12, r7, asr #1 @ ...at all
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cmp r12, #31 @
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bls 15f @ no clamp @
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cmp r0, #31 @ clamp b
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mvnhi r0, r0, asr #31 @
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andhi r0, r0, #31 @
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cmp r11, #31 @ clamp r
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mvnhi r11, r11, asr #31 @
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andhi r11, r11, #31 @
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cmp r7, #63 @ clamp g
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mvnhi r7, r7, asr #31 @
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andhi r7, r7, #63 @
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15: @ no clamp @
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@
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orr r0, r0, r11, lsl #11 @ r0 = (r << 11) | b
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orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b
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strh r0, [r3, #0x10] @ write pixel
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1: @ busy @
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ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
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tst r7, #DBOP_BUSY @ fifo not empty?
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beq 1b @
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@
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||||||
|
subs r1, r1, #2 @ subtract block from width
|
||||||
|
bgt 10b @ loop line @
|
||||||
|
@
|
||||||
|
ldmfd sp!, { r4-r12 } @ restore registers and return
|
||||||
|
bx lr @
|
||||||
|
.ltorg @ dump constant pool
|
||||||
|
.size lcd_write_yuv420_lines, .-lcd_write_yuv420_lines
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* void lcd_write_yuv_420_lines_odither(unsigned char const * const src[3],
|
||||||
|
* int width,
|
||||||
|
* int stride,
|
||||||
|
* int x_screen,
|
||||||
|
* int y_screen);
|
||||||
|
*
|
||||||
|
* |R| |1.000000 -0.000001 1.402000| |Y'|
|
||||||
|
* |G| = |1.000000 -0.334136 -0.714136| |Pb|
|
||||||
|
* |B| |1.000000 1.772000 0.000000| |Pr|
|
||||||
|
* Red scaled at twice g & b but at same precision to place it in correct
|
||||||
|
* bit position after multiply and leave instruction count lower.
|
||||||
|
* |R| |258 0 408| |Y' - 16|
|
||||||
|
* |G| = |149 -49 -104| |Cb - 128|
|
||||||
|
* |B| |149 258 0| |Cr - 128|
|
||||||
|
*
|
||||||
|
* Write four RGB565 pixels in the following order on each loop:
|
||||||
|
* 1 3 + > down
|
||||||
|
* 2 4 \/ left
|
||||||
|
*
|
||||||
|
* Kernel pattern (raw|rotated|use order):
|
||||||
|
* 5 3 4 2 2 6 3 7 row0 row2 > down
|
||||||
|
* 1 7 0 6 | 4 0 5 1 | 2 4 6 0 3 5 7 1 col0 left
|
||||||
|
* 4 2 5 3 | 3 7 2 6 | 3 5 7 1 2 4 6 0 col2 \/
|
||||||
|
* 0 6 1 7 5 1 4 0
|
||||||
|
*/
|
||||||
|
.section .icode, "ax", %progbits
|
||||||
|
.align 2
|
||||||
|
.global lcd_write_yuv420_lines_odither
|
||||||
|
.type lcd_write_yuv420_lines_odither, %function
|
||||||
|
lcd_write_yuv420_lines_odither:
|
||||||
|
@ r0 = yuv_src
|
||||||
|
@ r1 = width
|
||||||
|
@ r2 = stride
|
||||||
|
@ r3 = x_screen
|
||||||
|
@ [sp] = y_screen
|
||||||
|
stmfd sp!, { r4-r12, lr } @ save non-scratch
|
||||||
|
ldmia r0, { r4, r5, r6 } @ r4 = yuv_src[0] = Y'_p
|
||||||
|
@ r5 = yuv_src[1] = Cb_p
|
||||||
|
@ r6 = yuv_src[2] = Cr_p
|
||||||
|
@
|
||||||
|
sub r2, r2, #1 @
|
||||||
|
ldr r14, [sp, #40] @ Line up pattern and kernel quadrant
|
||||||
|
eor r14, r14, r3 @
|
||||||
|
and r14, r14, #0x2 @
|
||||||
|
mov r14, r14, lsl #6 @ 0x00 or 0x80
|
||||||
|
mov r3, #0xC8000000 @
|
||||||
|
orr r3, r3, #0x120000 @ r3 = DBOP_BASE
|
||||||
|
10: @ loop line @
|
||||||
|
@
|
||||||
|
ldrb r7, [r4], #1 @ r7 = *Y'_p++;
|
||||||
|
ldrb r8, [r5], #1 @ r8 = *Cb_p++;
|
||||||
|
ldrb r9, [r6], #1 @ r9 = *Cr_p++;
|
||||||
|
@
|
||||||
|
eor r14, r14, #0x80 @ flip pattern quadrant
|
||||||
|
@
|
||||||
|
sub r7, r7, #16 @ r7 = Y = (Y' - 16)*149
|
||||||
|
add r12, r7, r7, asl #2 @
|
||||||
|
add r12, r12, r12, asl #4 @
|
||||||
|
add r7, r12, r7, asl #6 @
|
||||||
|
@
|
||||||
|
sub r8, r8, #128 @ Cb -= 128
|
||||||
|
sub r9, r9, #128 @ Cr -= 128
|
||||||
|
@
|
||||||
|
add r10, r8, r8, asl #4 @ r10 = guv = Cr*104 + Cb*49
|
||||||
|
add r10, r10, r8, asl #5 @
|
||||||
|
add r10, r10, r9, asl #3 @
|
||||||
|
add r10, r10, r9, asl #5 @
|
||||||
|
add r10, r10, r9, asl #6 @
|
||||||
|
@
|
||||||
|
mov r8, r8, asl #1 @ r8 = bu = Cb*258
|
||||||
|
add r8, r8, r8, asl #7 @
|
||||||
|
@
|
||||||
|
add r9, r9, r9, asl #1 @ r9 = rv = Cr*408
|
||||||
|
add r9, r9, r9, asl #4 @
|
||||||
|
mov r9, r9, asl #3 @
|
||||||
|
@
|
||||||
|
@ compute R, G, and B
|
||||||
|
add r0, r8, r7 @ r0 = b' = Y + bu
|
||||||
|
add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
|
||||||
|
rsb r7, r10, r7 @ r7 = g' = Y + guv
|
||||||
|
@
|
||||||
|
@ r8 = bu, r9 = rv, r10 = guv
|
||||||
|
@
|
||||||
|
sub r12, r0, r0, lsr #5 @ r0 = 31/32*b + b/256
|
||||||
|
add r0, r12, r0, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r11, r11, lsr #5 @ r11 = 31/32*r + r/256
|
||||||
|
add r11, r12, r11, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r7, r7, lsr #6 @ r7 = 63/64*g + g/256
|
||||||
|
add r7, r12, r7, lsr #8 @
|
||||||
|
@
|
||||||
|
add r12, r14, #0x100 @
|
||||||
|
@
|
||||||
|
add r0, r0, r12 @ b = r0 + delta
|
||||||
|
add r11, r11, r12, lsl #1 @ r = r11 + delta*2
|
||||||
|
add r7, r7, r12, lsr #1 @ g = r7 + delta/2
|
||||||
|
@
|
||||||
|
orr r12, r0, r11, asr #1 @ check if clamping is needed...
|
||||||
|
orr r12, r12, r7 @ ...at all
|
||||||
|
movs r12, r12, asr #15 @
|
||||||
|
beq 15f @ no clamp @
|
||||||
|
movs r12, r0, asr #15 @ clamp b
|
||||||
|
mvnne r0, r12, lsr #15 @
|
||||||
|
andne r0, r0, #0x7c00 @ mask b only if clamped
|
||||||
|
movs r12, r11, asr #16 @ clamp r
|
||||||
|
mvnne r11, r12, lsr #16 @
|
||||||
|
movs r12, r7, asr #15 @ clamp g
|
||||||
|
mvnne r7, r12, lsr #15 @
|
||||||
|
15: @ no clamp @
|
||||||
|
@
|
||||||
|
ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
|
||||||
|
@
|
||||||
|
and r11, r11, #0xf800 @ pack pixel
|
||||||
|
and r7, r7, #0x7e00 @ r0 = pixel = (r & 0xf800) |
|
||||||
|
orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
|
||||||
|
orr r0, r11, r0, lsr #10 @ (b >> 10)
|
||||||
|
strh r0, [r3, #0x10] @ write pixel
|
||||||
|
1: @ busy @
|
||||||
|
ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
|
||||||
|
tst r7, #DBOP_BUSY @ fifo not empty?
|
||||||
|
beq 1b @
|
||||||
|
@
|
||||||
|
sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
|
||||||
|
add r12, r7, r7, asl #2 @
|
||||||
|
add r12, r12, r12, asl #4 @
|
||||||
|
add r7, r12, r7, asl #6 @
|
||||||
|
@ compute R, G, and B
|
||||||
|
add r0, r8, r7 @ r0 = b' = Y + bu
|
||||||
|
add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
|
||||||
|
rsb r7, r10, r7 @ r7 = g' = Y + guv
|
||||||
|
@
|
||||||
|
sub r12, r0, r0, lsr #5 @ r0 = 31/32*b' + b'/256
|
||||||
|
add r0, r12, r0, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r11, r11, lsr #5 @ r11 = 31/32*r' + r'/256
|
||||||
|
add r11, r12, r11, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r7, r7, lsr #6 @ r7 = 63/64*g' + g'/256
|
||||||
|
add r7, r12, r7, lsr #8 @
|
||||||
|
@
|
||||||
|
add r12, r14, #0x200 @
|
||||||
|
@
|
||||||
|
add r0, r0, r12 @ b = r0 + delta
|
||||||
|
add r11, r11, r12, lsl #1 @ r = r11 + delta*2
|
||||||
|
add r7, r7, r12, lsr #1 @ g = r7 + delta/2
|
||||||
|
@
|
||||||
|
orr r12, r0, r11, asr #1 @ check if clamping is needed...
|
||||||
|
orr r12, r12, r7 @ ...at all
|
||||||
|
movs r12, r12, asr #15 @
|
||||||
|
beq 15f @ no clamp @
|
||||||
|
movs r12, r0, asr #15 @ clamp b
|
||||||
|
mvnne r0, r12, lsr #15 @
|
||||||
|
andne r0, r0, #0x7c00 @ mask b only if clamped
|
||||||
|
movs r12, r11, asr #16 @ clamp r
|
||||||
|
mvnne r11, r12, lsr #16 @
|
||||||
|
movs r12, r7, asr #15 @ clamp g
|
||||||
|
mvnne r7, r12, lsr #15 @
|
||||||
|
15: @ no clamp @
|
||||||
|
@
|
||||||
|
ldrb r12, [r4], #1 @ r12 = Y' = *(Y'_p++)
|
||||||
|
|
||||||
|
and r11, r11, #0xf800 @ pack pixel
|
||||||
|
and r7, r7, #0x7e00 @ r0 = pixel = (r & 0xf800) |
|
||||||
|
orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
|
||||||
|
orr r0, r11, r0, lsr #10 @ (b >> 10)
|
||||||
|
strh r0, [r3, #0x10] @ write pixel
|
||||||
|
1: @ busy @
|
||||||
|
ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
|
||||||
|
tst r7, #DBOP_BUSY @ fifo not empty?
|
||||||
|
beq 1b @
|
||||||
|
@
|
||||||
|
sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
|
||||||
|
add r12, r7, r7, asl #2 @
|
||||||
|
add r12, r12, r12, asl #4 @
|
||||||
|
add r7, r12, r7, asl #6 @
|
||||||
|
@ compute R, G, and B
|
||||||
|
add r0, r8, r7 @ r0 = b' = Y + bu
|
||||||
|
add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
|
||||||
|
rsb r7, r10, r7 @ r7 = g' = Y + guv
|
||||||
|
@
|
||||||
|
@ r8 = bu, r9 = rv, r10 = guv
|
||||||
|
@
|
||||||
|
sub r12, r0, r0, lsr #5 @ r0 = 31/32*b' + b'/256
|
||||||
|
add r0, r12, r0, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r11, r11, lsr #5 @ r11 = 31/32*r' + r'/256
|
||||||
|
add r11, r12, r11, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r7, r7, lsr #6 @ r7 = 63/64*g' + g'/256
|
||||||
|
add r7, r12, r7, lsr #8 @
|
||||||
|
@
|
||||||
|
add r12, r14, #0x300 @
|
||||||
|
@
|
||||||
|
add r0, r0, r12 @ b = r0 + delta
|
||||||
|
add r11, r11, r12, lsl #1 @ r = r11 + delta*2
|
||||||
|
add r7, r7, r12, lsr #1 @ g = r7 + delta/2
|
||||||
|
@
|
||||||
|
orr r12, r0, r11, asr #1 @ check if clamping is needed...
|
||||||
|
orr r12, r12, r7 @ ...at all
|
||||||
|
movs r12, r12, asr #15 @
|
||||||
|
beq 15f @ no clamp @
|
||||||
|
movs r12, r0, asr #15 @ clamp b
|
||||||
|
mvnne r0, r12, lsr #15 @
|
||||||
|
andne r0, r0, #0x7c00 @ mask b only if clamped
|
||||||
|
movs r12, r11, asr #16 @ clamp r
|
||||||
|
mvnne r11, r12, lsr #16 @
|
||||||
|
movs r12, r7, asr #15 @ clamp g
|
||||||
|
mvnne r7, r12, lsr #15 @
|
||||||
|
15: @ no clamp @
|
||||||
|
@
|
||||||
|
ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
|
||||||
|
@
|
||||||
|
and r11, r11, #0xf800 @ pack pixel
|
||||||
|
and r7, r7, #0x7e00 @ r0 = pixel = (r & 0xf800) |
|
||||||
|
orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
|
||||||
|
orr r0, r11, r0, lsr #10 @ (b >> 10)
|
||||||
|
strh r0, [r3, #0x10] @ write pixel
|
||||||
|
1: @ busy @
|
||||||
|
ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
|
||||||
|
tst r7, #DBOP_BUSY @ fifo not empty?
|
||||||
|
beq 1b @
|
||||||
|
@
|
||||||
|
sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
|
||||||
|
add r12, r7, r7, asl #2 @
|
||||||
|
add r12, r12, r12, asl #4 @
|
||||||
|
add r7, r12, r7, asl #6 @
|
||||||
|
@ compute R, G, and B
|
||||||
|
add r0, r8, r7 @ r0 = b' = Y + bu
|
||||||
|
add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
|
||||||
|
rsb r7, r10, r7 @ r7 = g' = Y + guv
|
||||||
|
@
|
||||||
|
sub r12, r0, r0, lsr #5 @ r0 = 31/32*b + b/256
|
||||||
|
add r0, r12, r0, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r11, r11, lsr #5 @ r11 = 31/32*r + r/256
|
||||||
|
add r11, r12, r11, lsr #8 @
|
||||||
|
@
|
||||||
|
sub r12, r7, r7, lsr #6 @ r7 = 63/64*g + g/256
|
||||||
|
add r7, r12, r7, lsr #8 @
|
||||||
|
@
|
||||||
|
@ This element is zero - use r14 @
|
||||||
|
@
|
||||||
|
add r0, r0, r14 @ b = r0 + delta
|
||||||
|
add r11, r11, r14, lsl #1 @ r = r11 + delta*2
|
||||||
|
add r7, r7, r14, lsr #1 @ g = r7 + delta/2
|
||||||
|
@
|
||||||
|
orr r12, r0, r11, asr #1 @ check if clamping is needed...
|
||||||
|
orr r12, r12, r7 @ ...at all
|
||||||
|
movs r12, r12, asr #15 @
|
||||||
|
beq 15f @ no clamp @
|
||||||
|
movs r12, r0, asr #15 @ clamp b
|
||||||
|
mvnne r0, r12, lsr #15 @
|
||||||
|
andne r0, r0, #0x7c00 @ mask b only if clamped
|
||||||
|
movs r12, r11, asr #16 @ clamp r
|
||||||
|
mvnne r11, r12, lsr #16 @
|
||||||
|
movs r12, r7, asr #15 @ clamp g
|
||||||
|
mvnne r7, r12, lsr #15 @
|
||||||
|
15: @ no clamp @
|
||||||
|
@
|
||||||
|
and r11, r11, #0xf800 @ pack pixel
|
||||||
|
and r7, r7, #0x7e00 @ r0 = pixel = (r & 0xf800) |
|
||||||
|
orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
|
||||||
|
orr r0, r11, r0, lsr #10 @ (b >> 10)
|
||||||
|
strh r0, [r3, #0x10] @ write pixel
|
||||||
|
1: @ busy @
|
||||||
|
ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS
|
||||||
|
tst r7, #DBOP_BUSY @ fifo not empty?
|
||||||
|
beq 1b @
|
||||||
|
@
|
||||||
|
subs r1, r1, #2 @ subtract block from width
|
||||||
|
bgt 10b @ loop line @
|
||||||
|
@
|
||||||
|
ldmfd sp!, { r4-r12, pc } @ restore registers and return
|
||||||
|
.ltorg @ dump constant pool
|
||||||
|
.size lcd_write_yuv420_lines_odither, .-lcd_write_yuv420_lines_odither
|
||||||
|
|
@ -74,7 +74,7 @@ static volatile bool lcd_busy = false;
|
||||||
#define R_GAMMA_GRAD_ADJ_NEG 0x37
|
#define R_GAMMA_GRAD_ADJ_NEG 0x37
|
||||||
|
|
||||||
#define R_GAMMA_AMP_ADJ_RES_POS 0x38
|
#define R_GAMMA_AMP_ADJ_RES_POS 0x38
|
||||||
#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
|
#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
|
||||||
|
|
||||||
#define R_GATE_SCAN_POS 0x40
|
#define R_GATE_SCAN_POS 0x40
|
||||||
#define R_VERT_SCROLL_CONTROL 0x41
|
#define R_VERT_SCROLL_CONTROL 0x41
|
||||||
|
|
@ -89,6 +89,7 @@ static volatile bool lcd_busy = false;
|
||||||
static unsigned short r_entry_mode = R_ENTRY_MODE_HORZ_NORMAL;
|
static unsigned short r_entry_mode = R_ENTRY_MODE_HORZ_NORMAL;
|
||||||
#define R_ENTRY_MODE_VERT 0x7038
|
#define R_ENTRY_MODE_VERT 0x7038
|
||||||
#define R_ENTRY_MODE_SOLID_VERT 0x1038
|
#define R_ENTRY_MODE_SOLID_VERT 0x1038
|
||||||
|
#define R_ENTRY_MODE_VIDEO 0x7020
|
||||||
|
|
||||||
|
|
||||||
/* Reverse Flag */
|
/* Reverse Flag */
|
||||||
|
|
@ -182,7 +183,7 @@ void lcd_set_invert_display(bool yesno)
|
||||||
void lcd_set_flip(bool yesno)
|
void lcd_set_flip(bool yesno)
|
||||||
{
|
{
|
||||||
display_flipped = yesno;
|
display_flipped = yesno;
|
||||||
|
|
||||||
r_entry_mode = yesno ? R_ENTRY_MODE_HORZ_FLIPPED :
|
r_entry_mode = yesno ? R_ENTRY_MODE_HORZ_FLIPPED :
|
||||||
R_ENTRY_MODE_HORZ_NORMAL;
|
R_ENTRY_MODE_HORZ_NORMAL;
|
||||||
}
|
}
|
||||||
|
|
@ -253,13 +254,13 @@ static void _display_on(void)
|
||||||
/* DC12-10 = 000b: Step-up1 = clock/8,
|
/* DC12-10 = 000b: Step-up1 = clock/8,
|
||||||
* DC02-00 = 000b: Step-up2 = clock/16,
|
* DC02-00 = 000b: Step-up2 = clock/16,
|
||||||
* VC2-0 = 010b: VciOUT = 0.87 * VciLVL */
|
* VC2-0 = 010b: VciOUT = 0.87 * VciLVL */
|
||||||
lcd_write_reg(R_POWER_CONTROL2, 0x0002);
|
lcd_write_reg(R_POWER_CONTROL2, 0x0002);
|
||||||
|
|
||||||
/* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
|
/* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
|
||||||
lcd_write_reg(R_POWER_CONTROL3, 0x0008);
|
lcd_write_reg(R_POWER_CONTROL3, 0x0008);
|
||||||
|
|
||||||
lcd_delay(40);
|
lcd_delay(40);
|
||||||
|
|
||||||
lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
|
lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
|
||||||
|
|
||||||
/* This register is unknown */
|
/* This register is unknown */
|
||||||
|
|
@ -270,8 +271,8 @@ static void _display_on(void)
|
||||||
|
|
||||||
lcd_delay(10);
|
lcd_delay(10);
|
||||||
|
|
||||||
lcd_write_reg(R_POWER_CONTROL2, 0x0000);
|
lcd_write_reg(R_POWER_CONTROL2, 0x0000);
|
||||||
lcd_write_reg(R_POWER_CONTROL3, 0x0013);
|
lcd_write_reg(R_POWER_CONTROL3, 0x0013);
|
||||||
|
|
||||||
lcd_delay(20);
|
lcd_delay(20);
|
||||||
|
|
||||||
|
|
@ -296,7 +297,7 @@ static void _display_on(void)
|
||||||
lcd_write_reg(R_GATE_SCAN_POS, 0);
|
lcd_write_reg(R_GATE_SCAN_POS, 0);
|
||||||
lcd_write_reg(R_VERT_SCROLL_CONTROL, 0);
|
lcd_write_reg(R_VERT_SCROLL_CONTROL, 0);
|
||||||
|
|
||||||
lcd_window(0, 0, LCD_WIDTH-1, LCD_HEIGHT-1);
|
lcd_window(0, 0, LCD_WIDTH-1, LCD_HEIGHT-1);
|
||||||
lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
||||||
lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
|
||||||
|
|
||||||
|
|
@ -356,6 +357,30 @@ bool lcd_active(void)
|
||||||
|
|
||||||
/*** update functions ***/
|
/*** update functions ***/
|
||||||
|
|
||||||
|
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
|
||||||
|
|
||||||
|
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
|
||||||
|
extern void lcd_write_yuv420_lines(unsigned char const * const src[3],
|
||||||
|
int width,
|
||||||
|
int stride);
|
||||||
|
extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3],
|
||||||
|
int width,
|
||||||
|
int stride,
|
||||||
|
int x_screen, /* To align dither pattern */
|
||||||
|
int y_screen);
|
||||||
|
|
||||||
|
void lcd_yuv_set_options(unsigned options)
|
||||||
|
{
|
||||||
|
lcd_yuv_options = options;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void lcd_window_blit(int xmin, int ymin, int xmax, int ymax)
|
||||||
|
{
|
||||||
|
lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((LCD_WIDTH-1 - xmin) << 8) | (LCD_WIDTH-1 - xmax));
|
||||||
|
lcd_write_reg(R_VERT_RAM_ADDR_POS, (ymax << 8) | ymin);
|
||||||
|
lcd_write_reg(R_RAM_ADDR_SET, (ymin << 8) | (LCD_WIDTH-1 - xmin));
|
||||||
|
}
|
||||||
|
|
||||||
/* Performance function to blit a YUV bitmap directly to the LCD
|
/* Performance function to blit a YUV bitmap directly to the LCD
|
||||||
* src_x, src_y, width and height should be even
|
* src_x, src_y, width and height should be even
|
||||||
* x, y, width and height have to be within LCD bounds
|
* x, y, width and height have to be within LCD bounds
|
||||||
|
|
@ -364,14 +389,58 @@ void lcd_blit_yuv(unsigned char * const src[3],
|
||||||
int src_x, int src_y, int stride,
|
int src_x, int src_y, int stride,
|
||||||
int x, int y, int width, int height)
|
int x, int y, int width, int height)
|
||||||
{
|
{
|
||||||
(void)src;
|
unsigned char const * yuv_src[3];
|
||||||
(void)src_x;
|
off_t z;
|
||||||
(void)src_y;
|
|
||||||
(void)stride;
|
lcd_busy = true;
|
||||||
(void)x;
|
|
||||||
(void)y;
|
/* Sorry, but width and height must be >= 2 or else */
|
||||||
(void)width;
|
width &= ~1;
|
||||||
(void)height;
|
height >>= 1;
|
||||||
|
|
||||||
|
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]);
|
||||||
|
|
||||||
|
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VIDEO);
|
||||||
|
|
||||||
|
if (lcd_yuv_options & LCD_YUV_DITHER)
|
||||||
|
{
|
||||||
|
do
|
||||||
|
{
|
||||||
|
lcd_window_blit(y, x, y+1, x+width-1);
|
||||||
|
|
||||||
|
/* Start write to GRAM */
|
||||||
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
|
lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
|
||||||
|
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;
|
||||||
|
y+=2;
|
||||||
|
}
|
||||||
|
while (--height > 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
do
|
||||||
|
{
|
||||||
|
lcd_window_blit(y, x, y+1, x+width-1);
|
||||||
|
|
||||||
|
/* Start write to GRAM */
|
||||||
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
|
lcd_write_yuv420_lines(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;
|
||||||
|
y+=2;
|
||||||
|
}
|
||||||
|
while (--height > 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
lcd_busy = false;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Update the display.
|
/* Update the display.
|
||||||
|
|
|
||||||
|
|
@ -37,7 +37,9 @@
|
||||||
#define R_WRITE_DATA_2_GRAM 0x22
|
#define R_WRITE_DATA_2_GRAM 0x22
|
||||||
|
|
||||||
#define R_ENTRY_MODE_HORZ 0x7030
|
#define R_ENTRY_MODE_HORZ 0x7030
|
||||||
|
#define R_ENTRY_MODE_VERT 0x7038
|
||||||
|
|
||||||
|
static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
|
||||||
static bool display_on = false; /* is the display turned on? */
|
static bool display_on = false; /* is the display turned on? */
|
||||||
static bool display_flipped = false;
|
static bool display_flipped = false;
|
||||||
static int xoffset = 20; /* needed for flip */
|
static int xoffset = 20; /* needed for flip */
|
||||||
|
|
@ -189,7 +191,7 @@ void lcd_enable(bool on)
|
||||||
* avoid irritating flash on backlight on */
|
* avoid irritating flash on backlight on */
|
||||||
while(delay--);
|
while(delay--);
|
||||||
lcd_activation_call_hook();
|
lcd_activation_call_hook();
|
||||||
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
|
|
@ -210,22 +212,94 @@ bool lcd_active(void)
|
||||||
|
|
||||||
/*** update functions ***/
|
/*** update functions ***/
|
||||||
|
|
||||||
/* Performance function to blit a YUV bitmap directly to the LCD
|
/* Set horizontal window addresses */
|
||||||
* src_x, src_y, width and height should be even
|
static void lcd_window_x(int xmin, int xmax)
|
||||||
* x, y, width and height have to be within LCD bounds
|
{
|
||||||
*/
|
xmin += xoffset;
|
||||||
|
xmax += xoffset;
|
||||||
|
lcd_write_reg(0x46, (xmax << 8) | xmin);
|
||||||
|
lcd_write_reg(0x20, xmin);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Set vertical window addresses */
|
||||||
|
static void lcd_window_y(int ymin, int ymax)
|
||||||
|
{
|
||||||
|
lcd_write_reg(0x47, ymax);
|
||||||
|
lcd_write_reg(0x48, ymin);
|
||||||
|
lcd_write_reg(0x21, ymin);
|
||||||
|
}
|
||||||
|
|
||||||
|
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(unsigned char const * const src[3],
|
||||||
|
int width,
|
||||||
|
int stride);
|
||||||
|
extern void lcd_write_yuv420_lines_odither(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 */
|
||||||
void lcd_blit_yuv(unsigned char * const src[3],
|
void lcd_blit_yuv(unsigned char * const src[3],
|
||||||
int src_x, int src_y, int stride,
|
int src_x, int src_y, int stride,
|
||||||
int x, int y, int width, int height)
|
int x, int y, int width, int height)
|
||||||
{
|
{
|
||||||
(void)src;
|
unsigned char const * yuv_src[3];
|
||||||
(void)src_x;
|
off_t z;
|
||||||
(void)src_y;
|
|
||||||
(void)stride;
|
lcd_busy = true;
|
||||||
(void)x;
|
|
||||||
(void)y;
|
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VERT);
|
||||||
(void)width;
|
|
||||||
(void)height;
|
/* Sorry, but width and height must be >= 2 or else */
|
||||||
|
width &= ~1;
|
||||||
|
height >>= 1;
|
||||||
|
|
||||||
|
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]);
|
||||||
|
|
||||||
|
lcd_window_x(x, x + width - 1);
|
||||||
|
|
||||||
|
if (lcd_yuv_options & LCD_YUV_DITHER)
|
||||||
|
{
|
||||||
|
do
|
||||||
|
{
|
||||||
|
lcd_window_y(y, y + 1);
|
||||||
|
/* Start write to GRAM */
|
||||||
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
|
lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
|
||||||
|
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;
|
||||||
|
y += 2;
|
||||||
|
}
|
||||||
|
while (--height > 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
do
|
||||||
|
{
|
||||||
|
lcd_window_y(y, y + 1);
|
||||||
|
/* Start write to GRAM */
|
||||||
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
|
lcd_write_yuv420_lines(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;
|
||||||
|
y += 2;
|
||||||
|
}
|
||||||
|
while (--height > 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
lcd_busy = false;
|
||||||
}
|
}
|
||||||
|
|
||||||
void lcd_init_device()
|
void lcd_init_device()
|
||||||
|
|
@ -242,23 +316,6 @@ void lcd_init_device()
|
||||||
_display_on();
|
_display_on();
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Set horizontal window addresses */
|
|
||||||
void lcd_window_x(int xmin, int xmax)
|
|
||||||
{
|
|
||||||
xmin += xoffset;
|
|
||||||
xmax += xoffset;
|
|
||||||
lcd_write_reg(0x46, (xmax << 8) | xmin);
|
|
||||||
lcd_write_reg(0x20, xmin);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Set vertical window addresses */
|
|
||||||
void lcd_window_y(int ymin, int ymax)
|
|
||||||
{
|
|
||||||
lcd_write_reg(0x47, ymax);
|
|
||||||
lcd_write_reg(0x48, ymin);
|
|
||||||
lcd_write_reg(0x21, ymin);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Update the display.
|
/* Update the display.
|
||||||
This must be called after all other LCD functions that change the display. */
|
This must be called after all other LCD functions that change the display. */
|
||||||
void lcd_update(void)
|
void lcd_update(void)
|
||||||
|
|
@ -272,7 +329,7 @@ void lcd_update(void)
|
||||||
lcd_window_x(0, LCD_WIDTH - 1);
|
lcd_window_x(0, LCD_WIDTH - 1);
|
||||||
lcd_window_y(0, LCD_HEIGHT - 1);
|
lcd_window_y(0, LCD_HEIGHT - 1);
|
||||||
|
|
||||||
/* Start write to GRAM */
|
/* Start write to GRAM */
|
||||||
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
/* Write data */
|
/* Write data */
|
||||||
|
|
@ -313,7 +370,7 @@ void lcd_update_rect(int x, int y, int width, int height)
|
||||||
lcd_window_x(x, xmax);
|
lcd_window_x(x, xmax);
|
||||||
lcd_window_y(y, ymax);
|
lcd_window_y(y, ymax);
|
||||||
|
|
||||||
/* Start write to GRAM */
|
/* Start write to GRAM */
|
||||||
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
|
||||||
|
|
||||||
ptr = (unsigned short *)&lcd_framebuffer[y][x];
|
ptr = (unsigned short *)&lcd_framebuffer[y][x];
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue