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| author | Aidan MacDonald <amachronic@protonmail.com> | 2022-10-03 10:17:41 +0100 |
|---|---|---|
| committer | Aidan MacDonald <amachronic@protonmail.com> | 2022-10-03 13:30:01 +0100 |
| commit | fe6aa21e9eb88f49005863efd2003d0982920048 (patch) | |
| tree | 11ffde0fdde131f39145542506cf9020dcf384d3 /firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S | |
| parent | b371ff1f4758f6781e2b89f86bd8e65b8585f56e (diff) | |
| download | rockbox-fe6aa21e9e.tar.gz rockbox-fe6aa21e9e.zip | |
Remove YUV blitting functions and LCD modes
None of this is needed now that mpegplayer is gone.
Change-Id: I360366db8513e4d988021e8d7b7d8eb09930efb8
Diffstat (limited to 'firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S')
| -rw-r--r-- | firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S b/firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S deleted file mode 100644 index feffe6fb96..0000000000 --- a/firmware/target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S +++ /dev/null @@ -1,550 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2007 by Jens Arnold - * Heavily based on lcd-as-memframe.c by Michael Sevakis - * Adapted for Sansa Fuze/e200v2 by Rafaël Carré - * - * 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" - -#define DBOP_BUSY (1<<10) - -/**************************************************************************** - * void lcd_write_yuv420_lines(unsigned char const * const src[3], - * int width, - * int stride); - * - * |R| |1.000000 -0.000001 1.402000| |Y'| - * |G| = |1.000000 -0.334136 -0.714136| |Pb| - * |B| |1.000000 1.772000 0.000000| |Pr| - * Scaled, normalized, rounded and tweaked to yield RGB 565: - * |R| |74 0 101| |Y' - 16| >> 9 - * |G| = |74 -24 -51| |Cb - 128| >> 8 - * |B| |74 128 0| |Cr - 128| >> 9 - * - * Write four RGB565 pixels in the following order on each loop: - * 1 3 + > down - * 2 4 \/ left - */ - .section .icode, "ax", %progbits - .align 2 - .global lcd_write_yuv420_lines - .type lcd_write_yuv420_lines, %function -lcd_write_yuv420_lines: - @ r0 = yuv_src - @ r1 = width - @ r2 = stride - stmfd sp!, { r4-r11, lr } @ save non-scratch - - mov r3, #0xC8000000 @ - orr r3, r3, #0x120000 @ r3 = DBOP_BASE - - ldmia r0, { r4, r5, r6 } @ r4 = yuv_src[0] = Y'_p - @ r5 = yuv_src[1] = Cb_p - @ r6 = yuv_src[2] = Cr_p - @ r0 = scratch - ldr r12, [r3, #8] @ - sub r2, r2, #1 @ stride -= 1 - orr r12, r12, #3<<13 @ DBOP_CTRL |= (1<<13|1<<14) (32bit mode) -#ifdef SANSA_FUZEV2 - bic r12, r12, #1<<13 @ DBOP_CTRL &= ~(1<<13),still 32bit mode -#endif - str r12, [r3, #8] @ -10: @ loop line @ - ldrb r7, [r4], #1 @ r7 = *Y'_p++; - ldrb r8, [r5], #1 @ r8 = *Cb_p++; - ldrb r9, [r6], #1 @ r9 = *Cr_p++; - @ - sub r7, r7, #16 @ r7 = Y = (Y' - 16)*74 - add r12, r7, r7, asl #2 @ actually (Y' - 16)*37 and shift right - add r7, r12, r7, asl #5 @ by one less when adding - same for all - @ - sub r8, r8, #128 @ Cb -= 128 - sub r9, r9, #128 @ Cr -= 128 - @ - add r10, r9, r9, asl #1 @ r10 = Cr*51 + Cb*24 - add r10, r10, r10, asl #4 @ - add r10, r10, r8, asl #3 @ - add r10, r10, r8, asl #4 @ - @ - add lr, r9, r9, asl #2 @ r9 = Cr*101 - add lr, lr, r9, asl #5 @ - add r9, lr, r9, asl #6 @ - @ - add r8, r8, #2 @ r8 = bu = (Cb*128 + 128) >> 8 - mov r8, r8, asr #2 @ - add r9, r9, #256 @ r9 = rv = (r9 + 256) >> 9 - mov r9, r9, asr #9 @ - rsb r10, r10, #128 @ r10 = guv = (-r10 + 128) >> 8 - mov r10, r10, asr #8 @ - @ compute R, G, and B - add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu - add lr, r9, r7, asr #8 @ lr = r = (Y >> 9) + rv - add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv - @ - orr r12, r0, lr @ check if clamping is needed... - orr r12, r12, r7, asr #1 @ ...at all - cmp r12, #31 @ - bls 15f @ no clamp @ - cmp r0, #31 @ clamp b - mvnhi r0, r0, asr #31 @ - andhi r0, r0, #31 @ - cmp lr, #31 @ clamp r - mvnhi lr, lr, asr #31 @ - andhi lr, lr, #31 @ - cmp r7, #63 @ clamp g - mvnhi r7, r7, asr #31 @ - andhi r7, r7, #63 @ -15: @ no clamp @ - @ - ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride) - @ - orr r0, r0, lr, lsl #11 @ r0 = (r << 11) | b - orr r11, r0, r7, lsl #5 @ r11 = (r << 11) | (g << 5) | b - orr r11, r0, r7, lsl #5 @ r11 = (r << 11) | (g << 5) | b -#ifdef SANSA_FUZEV2 - mov r0, r11, lsr #8 @ - bic r11, r11, #0xff00 @ - orr r11, r0, r11, lsl #8 @ swap bytes -#endif - sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74 - add r12, r7, r7, asl #2 @ - add r7, r12, r7, asl #5 @ - @ compute R, G, and B - add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu - add lr, r9, r7, asr #8 @ lr = r = (Y >> 9) + rv - add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv - @ - orr r12, r0, lr @ check if clamping is needed... - orr r12, r12, r7, asr #1 @ ...at all - cmp r12, #31 @ - bls 15f @ no clamp @ - cmp r0, #31 @ clamp b - mvnhi r0, r0, asr #31 @ - andhi r0, r0, #31 @ - cmp lr, #31 @ clamp r - mvnhi lr, lr, asr #31 @ - andhi lr, lr, #31 @ - cmp r7, #63 @ clamp g - mvnhi r7, r7, asr #31 @ - andhi r7, r7, #63 @ -15: @ no clamp @ - @ - ldrb r12, [r4], #1 @ r12 = Y' = *(Y'_p++) - @ - orr r0, r0, lr, lsl #11 @ r0 = (r << 11) | b - orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b - -#ifdef SANSA_FUZEV2 - mov r7, r0, lsr #8 @ - bic r7, r7, #0xff00 @ - orr r0, r7, r0, lsl #8 @ swap bytes -#endif - - orr r0, r11, r0, lsl#16 @ pack with 2nd pixel - str r0, [r3, #0x10] @ write pixel - @ - sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74 - add r12, r7, r7, asl #2 @ - add r7, r12, r7, asl #5 @ - @ compute R, G, and B - add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu - add lr, r9, r7, asr #8 @ lr = r = (Y >> 9) + rv - add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv - @ - orr r12, r0, lr @ check if clamping is needed... - orr r12, r12, r7, asr #1 @ ...at all - cmp r12, #31 @ - bls 15f @ no clamp @ - cmp r0, #31 @ clamp b - mvnhi r0, r0, asr #31 @ - andhi r0, r0, #31 @ - cmp lr, #31 @ clamp r - mvnhi lr, lr, asr #31 @ - andhi lr, lr, #31 @ - cmp r7, #63 @ clamp g - mvnhi r7, r7, asr #31 @ - andhi r7, r7, #63 @ -15: @ no clamp @ - @ - ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride) - @ - @ - orr r0, r0, lr, lsl #11 @ r0 = (r << 11) | b - orr r11, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b - -#ifdef SANSA_FUZEV2 - mov r0, r11, lsr #8 @ - bic r11, r11, #0xff00 @ - orr r11, r0, r11, lsl #8 @ swap byte -#endif - - sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74 - add r12, r7, r7, asl #2 @ - add r7, r12, r7, asl #5 @ - @ compute R, G, and B - add r0, r8, r7, asr #8 @ r0 = b = (Y >> 9) + bu - add lr, r9, r7, asr #8 @ lr = r = (Y >> 9) + rv - add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv - @ - orr r12, r0, lr @ check if clamping is needed... - orr r12, r12, r7, asr #1 @ ...at all - cmp r12, #31 @ - bls 15f @ no clamp @ - cmp r0, #31 @ clamp b - mvnhi r0, r0, asr #31 @ - andhi r0, r0, #31 @ - cmp lr, #31 @ clamp r - mvnhi lr, lr, asr #31 @ - andhi lr, lr, #31 @ - cmp r7, #63 @ clamp g - mvnhi r7, r7, asr #31 @ - andhi r7, r7, #63 @ -15: @ no clamp @ - @ - orr r0, r0, lr, lsl #11 @ r0 = (r << 11) | b - orr r0, r0, r7, lsl #5 @ r0 = (r << 11) | (g << 5) | b - -#ifdef SANSA_FUZEV2 - mov r7, r0, lsr #8 @ - bic r7, r7, #0xff00 @ - orr r0, r7, r0, lsl #8 @ swap bytes -#endif - - orr r0, r11, r0, lsl#16 @ pack with 2nd pixel - str r0, [r3, #0x10] @ write pixel - @ - subs r1, r1, #2 @ subtract block from width - bgt 10b @ loop line @ - @ -1: @ busy - @ writing at max 110*32 (LCD_WIDTH/2), the fifo is bigger - @ so polling fifo empty only after each line is save - ldr r7, [r3,#0xc] @ r7 = DBOP_STATUS - tst r7, #DBOP_BUSY @ fifo not empty? - beq 1b @ - - ldmpc regs=r4-r11 @ restore registers and return - .ltorg @ dump constant pool - .size lcd_write_yuv420_lines, .-lcd_write_yuv420_lines - -/**************************************************************************** - * void lcd_write_yuv420_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-r11, 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 - @ - ldr r14, [sp, #36] @ Line up pattern and kernel quadrant - sub r2, r2, #1 @ stride =- 1 - 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, need to be redone - @ due to lack of registers - ldr r12, [r3, #8] @ - orr r12, r12, #3<<13 @ DBOP_CTRL |= (1<<13|1<<14) -#ifdef SANSA_FUZEV2 - bic r12, r12, #1<<13 @ DBOP_CTRL &= ~(1<<13), still 32bit mode -#endif - str r12, [r3, #8] @ (32bit mode) -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 r3, r11, r0, lsr #10 @ (b >> 10) -#ifdef SANSA_FUZEV2 - mov r7, r3, lsr #8 @ - bic r3, r3, #0xff00 @ - orr r3, r7, r3, lsl #8 @ swap pixel -#endif - @ save pixel - 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) -#ifdef SANSA_FUZEV2 - mov r7, r0, lsr #8 @ - bic r0, r0, #0xff00 @ - orr r0, r7, r0, lsl #8 @ swap pixel -#endif - orr r3, r3, r0, lsl#16 @ pack with 2nd pixel - mov r0, #0xC8000000 @ - orr r0, r0, #0x120000 @ r3 = DBOP_BASE - - str r3, [r0, #0x10] @ write pixel - @ - 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 r3, r11, r0, lsr #10 @ (b >> 10) -#ifdef SANSA_FUZEV2 - mov r7, r3, lsr #8 @ - bic r3, r3, #0xff00 @ - orr r3, r7, r3, lsl #8 @ swap pixel -#endif - @ save pixel - @ - 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) -#ifdef SANSA_FUZEV2 - mov r7, r0, lsr #8 @ - bic r0, r0, #0xff00 @ - orr r0, r7, r0, lsl #8 @ swap pixel -#endif - orr r3, r3, r0, lsl#16 @ pack with 2nd pixel - mov r0, #0xC8000000 @ - orr r0, r0, #0x120000 @ r3 = DBOP_BASE - - str r3, [r0, #0x10] @ write pixel - @ - subs r1, r1, #2 @ subtract block from width - bgt 10b @ loop line @ - @ -1: @ busy @ - @ writing at max 110*32 (LCD_WIDTH/2), the fifo is bigger (128*32) - @ so polling fifo empty only after each line is save - ldr r7, [r0,#0xc] @ r7 = DBOP_STATUS - tst r7, #DBOP_BUSY @ fifo not empty? - beq 1b @ - - ldmpc regs=r4-r11 @ restore registers and return - .ltorg @ dump constant pool - .size lcd_write_yuv420_lines_odither, .-lcd_write_yuv420_lines_odither |