988 lines
41 KiB
C
988 lines
41 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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* New greyscale framework
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* Core & miscellaneous functions
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*
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* This is a generic framework to display 129 shades of grey on low-depth
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* bitmap LCDs (Archos b&w, Iriver & Ipod 4-grey) within plugins.
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*
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* Copyright (C) 2008 Jens Arnold
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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 "plugin.h"
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#include "grey.h"
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#include "fixedpoint.h"
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#if defined(HAVE_ADJUSTABLE_CPU_FREQ) && \
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(defined(CPU_PP) || (CONFIG_LCD == LCD_TL0350A))
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#define NEED_BOOST
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#endif
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#ifndef SIMULATOR
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#if defined ARCHOS_RECORDER /* verified */ \
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|| defined ARCHOS_FMRECORDER /* should be identical */ \
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|| defined ARCHOS_RECORDERV2 /* should be identical */ \
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|| defined ARCHOS_ONDIOFM /* verified */ \
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|| defined ARCHOS_ONDIOSP /* verified */
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/* Average measurements of a Recorder v1, an Ondio FM, a backlight-modded
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* Ondio FM, and an Ondio SP. */
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static const unsigned char lcdlinear[256] = {
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5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 29, 31, 33, 35,
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37, 39, 40, 42, 43, 45, 46, 48, 49, 50, 51, 53, 54, 55, 57, 58,
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59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 68, 69, 70, 71, 71, 72,
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73, 74, 74, 75, 76, 77, 77, 78, 79, 79, 80, 80, 81, 81, 82, 82,
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83, 84, 84, 85, 86, 86, 87, 87, 88, 88, 89, 89, 90, 90, 91, 91,
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92, 92, 93, 93, 94, 94, 95, 95, 96, 96, 97, 98, 98, 99, 100, 100,
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101, 101, 102, 103, 103, 104, 105, 105, 106, 106, 107, 107, 108, 108, 109, 109,
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110, 110, 111, 112, 112, 113, 114, 114, 115, 115, 116, 117, 117, 118, 119, 119,
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120, 120, 121, 122, 123, 123, 124, 125, 126, 126, 127, 128, 129, 129, 130, 131,
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132, 132, 133, 134, 135, 135, 136, 137, 138, 138, 139, 140, 140, 141, 141, 142,
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143, 144, 145, 146, 147, 147, 148, 149, 150, 151, 152, 153, 154, 154, 155, 156,
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157, 158, 159, 160, 161, 161, 162, 163, 164, 165, 166, 167, 168, 168, 169, 170,
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171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 184, 185, 186, 187,
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188, 189, 191, 192, 194, 195, 197, 198, 199, 200, 202, 203, 204, 205, 207, 208,
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209, 210, 212, 213, 215, 216, 218, 219, 220, 221, 222, 223, 225, 226, 227, 228,
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229, 230, 232, 233, 234, 235, 237, 238, 239, 240, 242, 243, 244, 246, 247, 248
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};
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/* The actual LCD scanrate varies a lot with temperature on these targets */
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#define LCD_SCANRATE 67 /* Hz */
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#elif defined IAUDIO_M3 /* verified */
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/* Average measurements of 2 iAudio remotes connected to an M3. */
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static const unsigned char lcdlinear[256] = {
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5, 9, 13, 17, 21, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66,
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70, 73, 76, 78, 80, 82, 84, 86, 88, 90, 91, 92, 94, 95, 96, 97,
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98, 99, 99, 100, 101, 102, 102, 103, 104, 104, 105, 105, 106, 107, 107, 108,
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109, 109, 110, 110, 111, 111, 112, 112, 113, 113, 114, 114, 115, 115, 116, 116,
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117, 117, 118, 118, 119, 119, 120, 120, 121, 121, 121, 122, 122, 123, 123, 123,
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124, 124, 124, 125, 125, 126, 126, 126, 127, 127, 127, 128, 128, 129, 129, 129,
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130, 130, 131, 131, 132, 132, 133, 133, 134, 134, 134, 135, 135, 136, 136, 136,
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137, 137, 137, 138, 138, 139, 139, 139, 140, 140, 141, 141, 142, 142, 143, 143,
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144, 144, 145, 145, 146, 147, 147, 148, 149, 149, 150, 150, 151, 151, 152, 152,
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153, 153, 154, 154, 155, 155, 156, 156, 157, 157, 158, 158, 159, 160, 160, 161,
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162, 162, 163, 164, 164, 165, 166, 167, 168, 168, 169, 169, 170, 171, 171, 172,
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173, 173, 174, 175, 176, 176, 177, 178, 179, 179, 180, 181, 182, 182, 183, 184,
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185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 198, 199, 200, 201,
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202, 203, 204, 205, 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219,
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220, 221, 222, 223, 225, 226, 227, 228, 229, 230, 231, 232, 234, 235, 236, 237,
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238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 249, 250, 251, 252
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};
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/* The actual LCD scanrate is 3x as high, but 150 Hz or 75 Hz cause a too high
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* CPU load (> 50 %). Even at 50Hz, greyscale display is rather smooth. Average
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* from 2 iAudio remotes. */
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#define LCD_SCANRATE 50 /* Hz */
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#elif defined IAUDIO_M5 /* verified */
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/* Measurement of one iAudio M5L */
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static const unsigned char lcdlinear[256] = {
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4, 6, 8, 10, 11, 13, 15, 17, 19, 21, 22, 24, 25, 27, 28, 30,
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32, 33, 35, 36, 37, 39, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51,
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52, 52, 53, 54, 55, 55, 56, 57, 58, 58, 59, 60, 61, 61, 62, 63,
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64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 70, 70, 71, 72, 72,
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73, 73, 74, 75, 75, 76, 77, 77, 78, 78, 79, 79, 80, 80, 81, 81,
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82, 82, 83, 84, 84, 85, 86, 86, 87, 87, 88, 89, 89, 90, 91, 91,
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92, 92, 93, 93, 94, 94, 95, 95, 96, 96, 97, 98, 98, 99, 100, 100,
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101, 101, 102, 102, 103, 103, 104, 104, 105, 105, 106, 106, 107, 107, 108, 108,
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109, 109, 110, 110, 111, 111, 112, 112, 113, 113, 114, 114, 115, 115, 116, 116,
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117, 117, 118, 119, 119, 120, 121, 121, 122, 122, 123, 124, 124, 125, 126, 126,
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127, 127, 128, 129, 130, 130, 131, 132, 133, 133, 134, 135, 135, 136, 137, 137,
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138, 139, 140, 141, 142, 142, 143, 144, 145, 146, 147, 148, 149, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 163, 164, 165, 167, 168, 169,
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170, 172, 173, 175, 177, 179, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198,
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200, 202, 204, 205, 207, 209, 210, 212, 214, 216, 218, 219, 221, 223, 224, 226,
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228, 230, 231, 233, 235, 236, 237, 239, 241, 243, 244, 246, 248, 249, 250, 252
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};
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#define LCD_SCANRATE 73 /* Hz */
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#elif defined IPOD_1G2G /* verified */
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/* Average measurements of an iPod 1st Gen (0x00010001) and an iPod 2nd Gen
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* (0x00020000), measured with both backlight off & backlight on (flipped
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* curves) and medium load (white background when measuring with backlight on),
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* as the curve is load dependent (the controller's step-up converter doesn't
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* provide enough juice). Table is for backlight_off state. */
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static const unsigned char lcdlinear[256] = {
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4, 6, 8, 9, 11, 13, 14, 16, 17, 18, 20, 21, 23, 24, 26, 27,
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29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 41, 42, 43, 44,
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45, 45, 46, 47, 47, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53,
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54, 54, 54, 55, 55, 56, 56, 56, 57, 57, 57, 58, 58, 59, 59, 59,
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60, 60, 60, 61, 61, 62, 62, 62, 63, 63, 63, 64, 64, 65, 65, 65,
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66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71, 72, 72, 73, 73,
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74, 74, 74, 75, 75, 76, 76, 76, 77, 77, 78, 78, 79, 79, 80, 80,
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81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87, 88, 88,
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89, 89, 90, 91, 92, 92, 93, 94, 95, 95, 96, 97, 97, 98, 99, 99,
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100, 100, 101, 102, 102, 103, 104, 104, 105, 105, 106, 107, 107, 108, 109, 109,
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110, 110, 111, 112, 113, 113, 114, 115, 116, 116, 117, 118, 119, 119, 120, 121,
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122, 122, 123, 124, 125, 125, 126, 127, 128, 129, 130, 131, 131, 132, 133, 134,
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135, 137, 138, 139, 141, 142, 144, 145, 146, 147, 149, 150, 151, 152, 154, 155,
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156, 158, 159, 161, 162, 164, 165, 167, 169, 171, 172, 174, 175, 177, 178, 180,
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182, 184, 186, 188, 189, 191, 193, 195, 197, 199, 201, 203, 206, 208, 210, 212,
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214, 217, 219, 221, 224, 226, 229, 231, 233, 236, 238, 240, 243, 245, 247, 250
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};
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/* Average from an iPod 1st Gen and an iPod 2nd Gen */
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#define LCD_SCANRATE 96 /* Hz */
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#elif defined IPOD_MINI2G /* verified */ \
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|| defined IPOD_MINI /* should be identical */ \
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|| defined IPOD_3G /* TODO: verify */ \
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|| defined IPOD_4G /* TODO: verify */
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/* Measurement of one iPod Mini G2 */
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static const unsigned char lcdlinear[256] = {
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2, 5, 7, 10, 12, 15, 17, 20, 22, 24, 26, 28, 30, 32, 34, 36,
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38, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 50, 51, 52, 52, 53,
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54, 54, 55, 55, 56, 56, 57, 57, 58, 58, 58, 59, 59, 60, 60, 60,
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61, 61, 61, 62, 62, 63, 63, 63, 64, 64, 64, 64, 65, 65, 65, 65,
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66, 66, 66, 66, 67, 67, 67, 67, 68, 68, 68, 68, 69, 69, 69, 69,
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70, 70, 70, 70, 71, 71, 71, 71, 72, 72, 72, 73, 73, 74, 74, 74,
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75, 75, 75, 75, 76, 76, 76, 76, 77, 77, 77, 78, 78, 79, 79, 79,
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80, 80, 80, 81, 81, 82, 82, 82, 83, 83, 83, 84, 84, 85, 85, 85,
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86, 86, 86, 87, 87, 88, 88, 88, 89, 89, 90, 90, 91, 91, 92, 92,
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93, 93, 94, 94, 95, 95, 96, 96, 97, 97, 98, 99, 99, 100, 101, 101,
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102, 102, 103, 104, 104, 105, 106, 106, 107, 108, 109, 110, 110, 111, 112, 113,
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114, 115, 115, 116, 117, 118, 118, 119, 120, 121, 121, 122, 123, 124, 124, 125,
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126, 127, 128, 129, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140,
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141, 142, 143, 144, 146, 147, 148, 149, 150, 151, 153, 154, 155, 156, 158, 159,
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160, 162, 163, 165, 166, 168, 169, 171, 172, 175, 177, 180, 182, 185, 187, 190,
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192, 196, 199, 203, 206, 210, 213, 217, 220, 223, 227, 230, 234, 238, 242, 246
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};
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/* Average of an iPod Mini G2 and 2 3rd Gen iPods. */
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#define LCD_SCANRATE 87 /* Hz */
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#elif defined IRIVER_H100_SERIES /* verified */
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/* Measurement of one Iriver H140 */
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static const unsigned char lcdlinear[256] = {
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5, 8, 12, 15, 18, 22, 25, 28, 31, 34, 36, 39, 42, 44, 47, 50,
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53, 55, 57, 59, 62, 64, 66, 68, 70, 71, 72, 73, 75, 76, 77, 78,
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79, 80, 80, 81, 82, 83, 83, 84, 85, 85, 86, 86, 87, 87, 88, 88,
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89, 89, 90, 90, 91, 91, 92, 92, 93, 93, 93, 94, 94, 95, 95, 95,
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96, 96, 96, 97, 97, 98, 98, 98, 99, 99, 99, 100, 100, 101, 101, 101,
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102, 102, 102, 103, 103, 104, 104, 104, 105, 105, 106, 106, 107, 107, 108, 108,
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109, 109, 109, 110, 110, 111, 111, 111, 112, 112, 113, 113, 114, 114, 115, 115,
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116, 116, 117, 117, 118, 118, 119, 119, 120, 120, 121, 121, 122, 122, 123, 123,
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124, 124, 125, 125, 126, 127, 127, 128, 129, 129, 130, 130, 131, 131, 132, 132,
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133, 133, 134, 135, 135, 136, 137, 137, 138, 138, 139, 139, 140, 140, 141, 141,
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142, 142, 143, 143, 144, 145, 145, 146, 147, 147, 148, 148, 149, 150, 150, 151,
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152, 152, 153, 153, 154, 155, 155, 156, 157, 157, 158, 159, 160, 160, 161, 162,
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163, 164, 165, 166, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177,
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178, 179, 181, 182, 183, 184, 186, 187, 188, 189, 191, 192, 193, 194, 196, 197,
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198, 200, 202, 203, 205, 207, 208, 210, 212, 214, 215, 217, 218, 220, 221, 223,
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224, 226, 228, 229, 231, 233, 235, 236, 238, 240, 241, 242, 244, 245, 246, 248
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};
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#define LCD_SCANRATE 70 /* Hz */
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#elif defined MROBE_100 /* verified */
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/* Average measurements of 2 m:robe 100 s */
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static const unsigned char lcdlinear[256] = {
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10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 49, 53, 56, 60, 63, 67,
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70, 73, 76, 79, 81, 84, 87, 90, 92, 95, 97, 100, 102, 105, 107, 110,
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112, 114, 116, 118, 119, 121, 123, 125, 126, 128, 130, 131, 133, 135, 136, 138,
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139, 141, 142, 143, 144, 146, 147, 148, 149, 150, 151, 152, 154, 155, 156, 157,
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158, 159, 160, 161, 161, 162, 163, 164, 165, 166, 167, 168, 168, 169, 170, 171,
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172, 172, 173, 173, 174, 174, 175, 175, 176, 176, 177, 178, 178, 179, 180, 180,
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181, 181, 182, 182, 183, 183, 184, 184, 185, 185, 186, 186, 187, 187, 188, 188,
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189, 189, 190, 190, 191, 191, 192, 192, 193, 193, 193, 194, 194, 195, 195, 195,
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196, 196, 197, 197, 198, 198, 199, 199, 200, 200, 200, 201, 201, 202, 202, 202,
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203, 203, 204, 204, 205, 205, 206, 206, 207, 207, 207, 208, 208, 209, 209, 209,
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210, 210, 210, 211, 211, 212, 212, 212, 213, 213, 213, 214, 214, 215, 215, 215,
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216, 216, 216, 217, 217, 218, 218, 218, 219, 219, 219, 220, 220, 221, 221, 221,
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222, 222, 222, 223, 223, 224, 224, 224, 225, 225, 225, 226, 226, 227, 227, 227,
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228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 232, 233, 233, 234, 234, 234,
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235, 235, 235, 236, 236, 237, 237, 237, 238, 238, 238, 239, 239, 240, 240, 240,
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241, 241, 242, 242, 243, 243, 244, 244, 247, 248, 248, 249, 250, 250, 251, 252
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};
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#define LCD_SCANRATE 51 /* Hz */
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#elif defined SANSA_CLIP /* TODO: calibrate */
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static const unsigned char lcdlinear[256] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
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};
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#define LCD_SCANRATE 78 /* Hz */
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#elif defined SANSA_CLIPV2 /* TODO: calibrate */
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static const unsigned char lcdlinear[256] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
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};
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#define LCD_SCANRATE 74 /* Hz */
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#elif defined SANSA_CLIPPLUS /* TODO: calibrate */
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static const unsigned char lcdlinear[256] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
|
|
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
|
|
208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
|
|
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
|
|
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
|
|
};
|
|
#define LCD_SCANRATE 80 /* Hz */
|
|
|
|
#elif defined MPIO_HD200
|
|
/* matrix generated in the following way
|
|
* 1) run 5 times test_grey
|
|
* 2) average results (joint points)
|
|
* 3) plot full matrix obtained by natural cubic b-spline interpolation
|
|
* 4) hand tweak joint points to smooth the curve
|
|
* 5) repeat steps 3 and 4 until interpolated curve is smooth
|
|
*/
|
|
static const unsigned char lcdlinear[256] = {
|
|
0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7,
|
|
8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15,
|
|
16, 16, 16, 17, 17, 18, 18, 18, 19, 19, 20, 20, 20, 21, 21, 21,
|
|
22, 22, 22, 22, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 26, 26,
|
|
27, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 33, 33, 34,
|
|
35, 35, 36, 36, 37, 37, 38, 39, 39, 40, 41, 41, 42, 43, 43, 44,
|
|
45, 45, 46, 46, 47, 48, 49, 49, 50, 51, 51, 52, 53, 53, 54, 55,
|
|
56, 56, 57, 58, 58, 59, 60, 61, 61, 62, 63, 64, 64, 65, 66, 67,
|
|
68, 68, 69, 70, 71, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80,
|
|
81, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
|
|
96, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 108, 109, 110, 111,
|
|
113, 114, 115, 117, 118, 120, 121, 123, 125, 126, 128, 130, 131, 133, 135, 137,
|
|
139, 140, 142, 144, 146, 147, 149, 151, 152, 154, 156, 157, 159, 161, 162, 164,
|
|
166, 167, 169, 170, 172, 173, 175, 176, 177, 179, 180, 182, 183, 184, 186, 187,
|
|
189, 190, 191, 193, 194, 195, 197, 198, 199, 201, 202, 203, 205, 206, 207, 208,
|
|
210, 211, 212, 213, 214, 215, 217, 218, 219, 220, 221, 222, 223, 224, 225, 227
|
|
};
|
|
#define LCD_SCANRATE 153 /* Hz */
|
|
|
|
#elif defined MPIO_HD300 /* verified */
|
|
/* Measurement of one iAudio M5L */
|
|
static const unsigned char lcdlinear[256] = {
|
|
4, 6, 8, 10, 11, 13, 15, 17, 19, 21, 22, 24, 25, 27, 28, 30,
|
|
32, 33, 35, 36, 37, 39, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51,
|
|
52, 52, 53, 54, 55, 55, 56, 57, 58, 58, 59, 60, 61, 61, 62, 63,
|
|
64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 70, 70, 71, 72, 72,
|
|
73, 73, 74, 75, 75, 76, 77, 77, 78, 78, 79, 79, 80, 80, 81, 81,
|
|
82, 82, 83, 84, 84, 85, 86, 86, 87, 87, 88, 89, 89, 90, 91, 91,
|
|
92, 92, 93, 93, 94, 94, 95, 95, 96, 96, 97, 98, 98, 99, 100, 100,
|
|
101, 101, 102, 102, 103, 103, 104, 104, 105, 105, 106, 106, 107, 107, 108, 108,
|
|
109, 109, 110, 110, 111, 111, 112, 112, 113, 113, 114, 114, 115, 115, 116, 116,
|
|
117, 117, 118, 119, 119, 120, 121, 121, 122, 122, 123, 124, 124, 125, 126, 126,
|
|
127, 127, 128, 129, 130, 130, 131, 132, 133, 133, 134, 135, 135, 136, 137, 137,
|
|
138, 139, 140, 141, 142, 142, 143, 144, 145, 146, 147, 148, 149, 149, 150, 151,
|
|
152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 163, 164, 165, 167, 168, 169,
|
|
170, 172, 173, 175, 177, 179, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198,
|
|
200, 202, 204, 205, 207, 209, 210, 212, 214, 216, 218, 219, 221, 223, 224, 226,
|
|
228, 230, 231, 233, 235, 236, 237, 239, 241, 243, 244, 246, 248, 249, 250, 252
|
|
};
|
|
#define LCD_SCANRATE 73 /* Hz */
|
|
|
|
#else /* not yet calibrated targets - generic linear mapping */
|
|
/* TODO: calibrate iFP7xx */
|
|
static const unsigned char lcdlinear[256] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
|
|
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
|
|
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
|
|
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
|
|
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
|
|
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
|
|
112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
|
|
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
|
|
144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
|
|
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
|
|
176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
|
|
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
|
|
208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
|
|
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
|
|
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
|
|
};
|
|
/* generic default */
|
|
#define LCD_SCANRATE 70 /* Hz */
|
|
|
|
#endif
|
|
#else /* SIMULATOR */
|
|
/* undo a (generic) PC display gamma of 2.0 to simulate target behaviour */
|
|
static const unsigned char lcdlinear[256] = {
|
|
0, 16, 23, 28, 32, 36, 39, 42, 45, 48, 50, 53, 55, 58, 60, 62,
|
|
64, 66, 68, 70, 71, 73, 75, 77, 78, 80, 81, 83, 84, 86, 87, 89,
|
|
90, 92, 93, 94, 96, 97, 98, 100, 101, 102, 103, 105, 106, 107, 108, 109,
|
|
111, 112, 113, 114, 115, 116, 117, 118, 119, 121, 122, 123, 124, 125, 126, 127,
|
|
128, 129, 130, 131, 132, 133, 134, 135, 135, 136, 137, 138, 139, 140, 141, 142,
|
|
143, 144, 145, 145, 146, 147, 148, 149, 150, 151, 151, 152, 153, 154, 155, 156,
|
|
156, 157, 158, 159, 160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168,
|
|
169, 170, 170, 171, 172, 173, 173, 174, 175, 176, 176, 177, 178, 179, 179, 180,
|
|
181, 181, 182, 183, 183, 184, 185, 186, 186, 187, 188, 188, 189, 190, 190, 191,
|
|
192, 192, 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200, 201, 201,
|
|
202, 203, 203, 204, 204, 205, 206, 206, 207, 208, 208, 209, 209, 210, 211, 211,
|
|
212, 212, 213, 214, 214, 215, 215, 216, 217, 217, 218, 218, 219, 220, 220, 221,
|
|
221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 228, 228, 229, 229, 230,
|
|
230, 231, 231, 232, 233, 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238,
|
|
239, 240, 240, 241, 241, 242, 242, 243, 243, 244, 244, 245, 245, 246, 246, 247,
|
|
247, 248, 248, 249, 249, 250, 250, 251, 251, 252, 252, 253, 253, 254, 254, 255
|
|
};
|
|
#endif /* SIMULATOR */
|
|
|
|
/* Prototypes */
|
|
static inline void _deferred_update(void) __attribute__ ((always_inline));
|
|
static void grey_screendump_hook(int fd);
|
|
static void fill_gvalues(void);
|
|
#ifdef SIMULATOR
|
|
static unsigned long _grey_get_pixel(int x, int y);
|
|
#else
|
|
static void _timer_isr(void);
|
|
#endif
|
|
|
|
|
|
#if defined(HAVE_BACKLIGHT_INVERSION) && !defined(SIMULATOR)
|
|
static void invert_gvalues(void)
|
|
{
|
|
unsigned char *val, *end;
|
|
unsigned char rev_tab[256];
|
|
unsigned i;
|
|
unsigned last_i = 0;
|
|
unsigned x = 0;
|
|
unsigned last_x;
|
|
|
|
/* Step 1: Calculate a transposed table for undoing the old mapping */
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
last_x = x;
|
|
x = _grey_info.gvalue[i];
|
|
if (x > last_x)
|
|
{
|
|
rev_tab[last_x++] = (last_i + i) / 2;
|
|
while (x > last_x)
|
|
rev_tab[last_x++] = i;
|
|
last_i = i;
|
|
}
|
|
}
|
|
rev_tab[last_x++] = (last_i + 255) / 2;
|
|
while (256 > last_x)
|
|
rev_tab[last_x++] = 255;
|
|
|
|
/* Step 2: Calculate new mapping */
|
|
fill_gvalues();
|
|
|
|
/* Step 3: Transpose all pixel values */
|
|
val = _grey_info.values;
|
|
end = val + _GREY_MULUQ(_grey_info.width, _grey_info.height);
|
|
|
|
do
|
|
*val = _grey_info.gvalue[rev_tab[*val]];
|
|
while (++val < end);
|
|
}
|
|
#endif
|
|
|
|
/* Update LCD areas not covered by the greyscale overlay */
|
|
static inline void _deferred_update(void)
|
|
{
|
|
int x1 = MAX(_grey_info.x, 0);
|
|
int x2 = MIN(_grey_info.x + _grey_info.width, LCD_WIDTH);
|
|
int y1 = MAX(_grey_info.y, 0);
|
|
int y2 = MIN(_grey_info.y + _grey_info.height, LCD_HEIGHT);
|
|
|
|
if (y1 > 0) /* refresh part above overlay, full width */
|
|
rb->lcd_update_rect(0, 0, LCD_WIDTH, y1);
|
|
|
|
if (y2 < LCD_HEIGHT) /* refresh part below overlay, full width */
|
|
rb->lcd_update_rect(0, y2, LCD_WIDTH, LCD_HEIGHT - y2);
|
|
|
|
if (x1 > 0) /* refresh part to the left of overlay */
|
|
rb->lcd_update_rect(0, y1, x1, y2 - y1);
|
|
|
|
if (x2 < LCD_WIDTH) /* refresh part to the right of overlay */
|
|
rb->lcd_update_rect(x2, y1, LCD_WIDTH - x2, y2 - y1);
|
|
}
|
|
|
|
#ifdef SIMULATOR
|
|
|
|
/* Callback function for grey_ub_gray_bitmap_part() to read a pixel from the
|
|
* greybuffer. Note that x and y are in LCD coordinates, not greybuffer
|
|
* coordinates! */
|
|
static unsigned long _grey_get_pixel(int x, int y)
|
|
{
|
|
long val;
|
|
int xg = x - _grey_info.x;
|
|
int yg = y - _grey_info.y;
|
|
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
|
|
int idx = _grey_info.width * yg + xg;
|
|
#else /* vertical packing or vertical interleaved */
|
|
int idx = _grey_info.width * (yg & ~_GREY_BMASK)
|
|
+ (xg << _GREY_BSHIFT) + (~yg & _GREY_BMASK);
|
|
#endif
|
|
|
|
val = _grey_info.values[idx];
|
|
#ifdef HAVE_LCD_SPLIT
|
|
val -= val >> 7;
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
#else /* !SIMULATOR */
|
|
|
|
/* Timer interrupt handler: display next frame */
|
|
static void _timer_isr(void)
|
|
{
|
|
#if defined(HAVE_BACKLIGHT_INVERSION) && !defined(SIMULATOR)
|
|
unsigned long check = rb->is_backlight_on(true)
|
|
? 0 : _GREY_BACKLIGHT_ON;
|
|
|
|
if ((_grey_info.flags & (_GREY_BACKLIGHT_ON|GREY_RAWMAPPED)) == check)
|
|
{
|
|
_grey_info.flags ^= _GREY_BACKLIGHT_ON;
|
|
invert_gvalues();
|
|
return; /* don't overload this timer slot */
|
|
}
|
|
#endif
|
|
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
|
|
rb->lcd_blit_grey_phase(_grey_info.values, _grey_info.phases,
|
|
_grey_info.bx, _grey_info.y,
|
|
_grey_info.bwidth, _grey_info.height,
|
|
_grey_info.width);
|
|
#else /* vertical packing or vertical interleaved */
|
|
rb->lcd_blit_grey_phase(_grey_info.values, _grey_info.phases,
|
|
_grey_info.x, _grey_info.by,
|
|
_grey_info.width, _grey_info.bheight,
|
|
_grey_info.width);
|
|
#endif
|
|
|
|
if (_grey_info.flags & _GREY_DEFERRED_UPDATE) /* lcd_update() requested? */
|
|
{
|
|
_deferred_update();
|
|
_grey_info.flags &= ~_GREY_DEFERRED_UPDATE; /* clear request */
|
|
}
|
|
}
|
|
|
|
#endif /* !SIMULATOR */
|
|
|
|
static void fill_gvalues(void)
|
|
{
|
|
int i;
|
|
unsigned data;
|
|
|
|
#if defined(HAVE_BACKLIGHT_INVERSION) && !defined(SIMULATOR)
|
|
unsigned imask = (_grey_info.flags & _GREY_BACKLIGHT_ON) ? 0xff : 0;
|
|
#else
|
|
const unsigned imask = 0;
|
|
#endif
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
data = fp16_exp((_GREY_GAMMA * fp16_log(i * 257 + 1)) >> 8) + 128;
|
|
data = (data - (data >> 8)) >> 8; /* approx. data /= 257 */
|
|
data = ((lcdlinear[data ^ imask] ^ imask) << 7) + 127;
|
|
_grey_info.gvalue[i] = (data + (data >> 8)) >> 8;
|
|
/* approx. data / 255 */
|
|
}
|
|
}
|
|
|
|
/* Initialise the framework and prepare the greyscale display buffer
|
|
|
|
arguments:
|
|
gbuf = pointer to the memory area to use (e.g. plugin buffer)
|
|
gbuf_size = max usable size of the buffer
|
|
features = flags for requesting features
|
|
GREY_BUFFERED: use chunky pixel buffering
|
|
This allows to use all drawing functions, but needs more
|
|
memory. Unbuffered operation provides only a subset of
|
|
drawing functions. (only grey_bitmap drawing and scrolling)
|
|
GREY_RAWMAPPED: no LCD linearisation and gamma correction
|
|
width = width in pixels (1..LCD_WIDTH)
|
|
height = height in pixels (1..LCD_HEIGHT)
|
|
Note that depending on the target LCD, either height or
|
|
width are rounded up to a multiple of 4 or 8.
|
|
|
|
result:
|
|
true on success, false on failure
|
|
|
|
If you need info about the memory taken by the greyscale buffer, supply a
|
|
long* as the last parameter. This long will then contain the number of bytes
|
|
used. The total memory needed can be calculated as follows:
|
|
total_mem =
|
|
width * height * 2 [grey display data]
|
|
+ buffered ? (width * height) : 0 [chunky buffer]
|
|
+ 0..3 [alignment]
|
|
|
|
The function is authentic regarding memory usage on the simulator, even
|
|
if it doesn't use all of the allocated memory. */
|
|
bool grey_init(unsigned char *gbuf, long gbuf_size,
|
|
unsigned features, int width, int height, long *buf_taken)
|
|
{
|
|
int bdim, i;
|
|
long plane_size, buftaken;
|
|
unsigned data;
|
|
#ifndef SIMULATOR
|
|
unsigned *dst, *end;
|
|
#endif
|
|
|
|
if ((unsigned) width > LCD_WIDTH
|
|
|| (unsigned) height > LCD_HEIGHT)
|
|
return false;
|
|
|
|
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
|
|
bdim = (width + 7) >> 3;
|
|
width = bdim << 3;
|
|
#else /* vertical packing or vertical interleaved */
|
|
#if (LCD_DEPTH == 1) || (LCD_PIXELFORMAT == VERTICAL_INTERLEAVED)
|
|
bdim = (height + 7) >> 3;
|
|
height = bdim << 3;
|
|
#elif LCD_DEPTH == 2
|
|
bdim = (height + 3) >> 2;
|
|
height = bdim << 2;
|
|
#endif
|
|
#endif
|
|
|
|
plane_size = _GREY_MULUQ(width, height);
|
|
#if defined(CPU_COLDFIRE) /* Buffers should be line aligned */ \
|
|
|| defined(CPU_PP) && (NUM_CORES > 1) /* Buffers must be cache line aligned */
|
|
plane_size += (-plane_size) & 0xf;
|
|
buftaken = (-(long)gbuf) & 0xf;
|
|
#else /* Buffers must be 32 bit aligned. */
|
|
buftaken = (-(long)gbuf) & 3;
|
|
#endif
|
|
gbuf += buftaken;
|
|
|
|
if (features & GREY_BUFFERED) /* chunky buffer */
|
|
{
|
|
_grey_info.buffer = gbuf;
|
|
gbuf += plane_size;
|
|
buftaken += plane_size;
|
|
}
|
|
#if NUM_CORES > 1 /* Values and phases must be uncached when running on COP */
|
|
if (features & GREY_ON_COP)
|
|
gbuf = UNCACHED_ADDR(gbuf);
|
|
#endif
|
|
_grey_info.values = gbuf;
|
|
gbuf += plane_size;
|
|
_grey_info.phases = gbuf;
|
|
buftaken += 2 * plane_size;
|
|
|
|
if (buftaken > gbuf_size)
|
|
return false;
|
|
|
|
/* Init to white */
|
|
rb->memset(_grey_info.values, 0x80, plane_size);
|
|
|
|
#ifndef SIMULATOR
|
|
/* Init phases with random bits */
|
|
dst = (unsigned*)(_grey_info.phases);
|
|
end = (unsigned*)(_grey_info.phases + plane_size);
|
|
|
|
do
|
|
*dst++ = rb->rand();
|
|
while (dst < end);
|
|
#endif
|
|
|
|
_grey_info.x = 0;
|
|
_grey_info.y = 0;
|
|
_grey_info.width = width;
|
|
_grey_info.height = height;
|
|
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
|
|
_grey_info.bx = 0;
|
|
_grey_info.bwidth = bdim;
|
|
#else /* vertical packing or vertical interleaved */
|
|
_grey_info.by = 0;
|
|
_grey_info.bheight = bdim;
|
|
#endif
|
|
_grey_info.flags = features & 0xff;
|
|
|
|
/* default viewport and settings */
|
|
grey_set_viewport(NULL);
|
|
grey_viewport_set_fullscreen(NULL, SCREEN_MAIN);
|
|
grey_set_framebuffer(NULL);
|
|
|
|
/* precalculate the value -> pattern index conversion table, taking
|
|
linearisation and gamma correction into account */
|
|
if (features & GREY_RAWMAPPED)
|
|
{
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
data = i << 7;
|
|
_grey_info.gvalue[i] = (data + (data >> 8)) >> 8;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#if defined(HAVE_BACKLIGHT_INVERSION) && !defined(SIMULATOR)
|
|
if (rb->is_backlight_on(true))
|
|
_grey_info.flags |= _GREY_BACKLIGHT_ON;
|
|
#endif
|
|
fill_gvalues();
|
|
}
|
|
|
|
if (buf_taken) /* caller requested info about space taken */
|
|
*buf_taken = buftaken;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Release the greyscale display buffer and the library
|
|
DO CALL either this function or at least grey_show_display(false)
|
|
before you exit, otherwise nasty things may happen. */
|
|
void grey_release(void)
|
|
{
|
|
grey_show(false);
|
|
}
|
|
|
|
/* Switch the greyscale overlay on or off
|
|
DO NOT call lcd_update() or any other api function that directly accesses
|
|
the lcd while the greyscale overlay is running! If you need to do
|
|
lcd_update() to update something outside the greyscale overlay area, use
|
|
grey_deferred_update() instead.
|
|
|
|
Other functions to avoid are:
|
|
lcd_blit_mono(), lcd_update_rect(), lcd_set_contrast(),
|
|
lcd_set_invert_display(), lcd_set_flip() */
|
|
void grey_show(bool enable)
|
|
{
|
|
if (enable && !(_grey_info.flags & _GREY_RUNNING))
|
|
{
|
|
_grey_info.flags |= _GREY_RUNNING;
|
|
#ifdef SIMULATOR
|
|
rb->sim_lcd_ex_init(_grey_get_pixel);
|
|
rb->sim_lcd_ex_update_rect(_grey_info.x, _grey_info.y,
|
|
_grey_info.width, _grey_info.height);
|
|
#else /* !SIMULATOR */
|
|
#ifdef NEED_BOOST
|
|
rb->cpu_boost(true);
|
|
#endif
|
|
#if NUM_CORES > 1
|
|
rb->timer_register(1, NULL, TIMER_FREQ / LCD_SCANRATE,
|
|
_timer_isr,
|
|
(_grey_info.flags & GREY_ON_COP) ? COP : CPU);
|
|
#else
|
|
rb->timer_register(1, NULL, TIMER_FREQ / LCD_SCANRATE, _timer_isr);
|
|
#endif
|
|
#endif /* !SIMULATOR */
|
|
rb->screen_dump_set_hook(grey_screendump_hook);
|
|
}
|
|
else if (!enable && (_grey_info.flags & _GREY_RUNNING))
|
|
{
|
|
#ifdef SIMULATOR
|
|
rb->sim_lcd_ex_init(NULL);
|
|
#else /* !SIMULATOR */
|
|
rb->timer_unregister();
|
|
#if NUM_CORES > 1 /* Make sure the ISR has finished before calling lcd_update() */
|
|
rb->sleep(HZ/100);
|
|
#endif
|
|
#ifdef NEED_BOOST
|
|
rb->cpu_boost(false);
|
|
#endif
|
|
#endif /* !SIMULATOR */
|
|
_grey_info.flags &= ~_GREY_RUNNING;
|
|
rb->screen_dump_set_hook(NULL);
|
|
rb->lcd_update(); /* restore whatever there was before */
|
|
}
|
|
}
|
|
|
|
void grey_update_rect(int x, int y, int width, int height)
|
|
{
|
|
grey_ub_gray_bitmap_part(_grey_info.buffer, x, y, _grey_info.width,
|
|
x, y, width, height);
|
|
}
|
|
|
|
/* Update the whole greyscale overlay */
|
|
void grey_update(void)
|
|
{
|
|
grey_ub_gray_bitmap_part(_grey_info.buffer, 0, 0, _grey_info.width,
|
|
0, 0, _grey_info.width, _grey_info.height);
|
|
}
|
|
|
|
/* Do an lcd_update() to show changes done by rb->lcd_xxx() functions
|
|
(in areas of the screen not covered by the greyscale overlay). */
|
|
void grey_deferred_lcd_update(void)
|
|
{
|
|
if (_grey_info.flags & _GREY_RUNNING)
|
|
{
|
|
#ifdef SIMULATOR
|
|
_deferred_update();
|
|
#else
|
|
_grey_info.flags |= _GREY_DEFERRED_UPDATE;
|
|
#endif
|
|
}
|
|
else
|
|
rb->lcd_update();
|
|
}
|
|
|
|
/*** Screenshot ***/
|
|
|
|
#ifdef HAVE_LCD_SPLIT
|
|
#define NUM_SHADES 128
|
|
#define BMP_NUMCOLORS 256
|
|
#else
|
|
#define NUM_SHADES 129
|
|
#define BMP_NUMCOLORS 129
|
|
#endif
|
|
|
|
#define BMP_BPP 8
|
|
#define BMP_LINESIZE ((LCD_WIDTH + 3) & ~3)
|
|
#define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS)
|
|
#define BMP_DATASIZE (BMP_LINESIZE * (LCD_HEIGHT+LCD_SPLIT_LINES))
|
|
#define BMP_TOTALSIZE (BMP_HEADERSIZE + BMP_DATASIZE)
|
|
|
|
static const unsigned char bmpheader[] =
|
|
{
|
|
0x42, 0x4d, /* 'BM' */
|
|
LE32_CONST(BMP_TOTALSIZE), /* Total file size */
|
|
0x00, 0x00, 0x00, 0x00, /* Reserved */
|
|
LE32_CONST(BMP_HEADERSIZE), /* Offset to start of pixel data */
|
|
|
|
0x28, 0x00, 0x00, 0x00, /* Size of (2nd) header */
|
|
LE32_CONST(LCD_WIDTH), /* Width in pixels */
|
|
LE32_CONST(LCD_HEIGHT+LCD_SPLIT_LINES), /* Height in pixels */
|
|
0x01, 0x00, /* Number of planes (always 1) */
|
|
LE16_CONST(BMP_BPP), /* Bits per pixel 1/4/8/16/24 */
|
|
0x00, 0x00, 0x00, 0x00, /* Compression mode, 0 = none */
|
|
LE32_CONST(BMP_DATASIZE), /* Size of bitmap data */
|
|
0xc4, 0x0e, 0x00, 0x00, /* Horizontal resolution (pixels/meter) */
|
|
0xc4, 0x0e, 0x00, 0x00, /* Vertical resolution (pixels/meter) */
|
|
LE32_CONST(BMP_NUMCOLORS), /* Number of used colours */
|
|
LE32_CONST(BMP_NUMCOLORS), /* Number of important colours */
|
|
};
|
|
|
|
#if LCD_DEPTH == 2
|
|
/* Only defined for positive, non-split LCD for now */
|
|
static const unsigned char colorindex[4] = {128, 85, 43, 0};
|
|
#endif
|
|
|
|
/* Hook function for core screen_dump() to save the current display
|
|
content (b&w and greyscale overlay) to an 8-bit BMP file. */
|
|
static void grey_screendump_hook(int fd)
|
|
{
|
|
int i;
|
|
int y, gx, gy;
|
|
#if LCD_PIXELFORMAT == VERTICAL_PACKING
|
|
#if LCD_DEPTH == 1
|
|
unsigned val;
|
|
unsigned mask;
|
|
#elif LCD_DEPTH == 2
|
|
int shift;
|
|
#endif
|
|
#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
|
|
unsigned data;
|
|
int shift;
|
|
#endif /* LCD_PIXELFORMAT */
|
|
fb_data *src;
|
|
unsigned char *gsrc;
|
|
unsigned char *dst, *dst_end;
|
|
unsigned char linebuf[MAX(4*NUM_SHADES,BMP_LINESIZE)];
|
|
|
|
rb->write(fd, bmpheader, sizeof(bmpheader)); /* write header */
|
|
|
|
/* build clut */
|
|
rb->memset(linebuf, 0, 4*NUM_SHADES);
|
|
dst = linebuf;
|
|
|
|
for (i = 0; i < NUM_SHADES; i++)
|
|
{
|
|
*dst++ = (_GREY_MULUQ(BLUE_CMP(LCD_BL_BRIGHTCOLOR)
|
|
-BLUE_CMP(LCD_BL_DARKCOLOR), i) >> 7)
|
|
+ BLUE_CMP(LCD_BL_DARKCOLOR);
|
|
*dst++ = (_GREY_MULUQ(GREEN_CMP(LCD_BL_BRIGHTCOLOR)
|
|
-GREEN_CMP(LCD_BL_DARKCOLOR), i) >> 7)
|
|
+ GREEN_CMP(LCD_BL_DARKCOLOR);
|
|
*dst++ = (_GREY_MULUQ(RED_CMP(LCD_BL_BRIGHTCOLOR)
|
|
-RED_CMP(LCD_BL_DARKCOLOR), i) >> 7)
|
|
+ RED_CMP(LCD_BL_DARKCOLOR);
|
|
dst++;
|
|
}
|
|
rb->write(fd, linebuf, 4*NUM_SHADES);
|
|
|
|
#ifdef HAVE_LCD_SPLIT
|
|
dst = linebuf;
|
|
|
|
for (i = 0; i <= NUM_SHADES; i++)
|
|
{
|
|
*dst++ = (_GREY_MULUQ(BLUE_CMP(LCD_BL_BRIGHTCOLOR_2)
|
|
-BLUE_CMP(LCD_BL_DARKCOLOR_2), i) >> 7)
|
|
+ BLUE_CMP(LCD_BL_DARKCOLOR_2);
|
|
*dst++ = (_GREY_MULUQ(GREEN_CMP(LCD_BL_BRIGHTCOLOR_2)
|
|
-GREEN_CMP(LCD_BL_DARKCOLOR_2), i) >> 7)
|
|
+ GREEN_CMP(LCD_BL_DARKCOLOR_2);
|
|
*dst++ = (_GREY_MULUQ(RED_CMP(LCD_BL_BRIGHTCOLOR_2)
|
|
-RED_CMP(LCD_BL_DARKCOLOR_2), i) >> 7)
|
|
+ RED_CMP(LCD_BL_DARKCOLOR_2);
|
|
dst++;
|
|
}
|
|
rb->write(fd, linebuf, 4*NUM_SHADES);
|
|
#endif
|
|
|
|
/* BMP image goes bottom -> top */
|
|
for (y = LCD_HEIGHT - 1; y >= 0; y--)
|
|
{
|
|
rb->memset(linebuf, 0, BMP_LINESIZE);
|
|
|
|
#if defined(HAVE_LCD_SPLIT) && (LCD_SPLIT_LINES == 2)
|
|
if (y == LCD_SPLIT_POS - 1)
|
|
{
|
|
rb->write(fd, linebuf, BMP_LINESIZE);
|
|
rb->write(fd, linebuf, BMP_LINESIZE);
|
|
}
|
|
#endif
|
|
|
|
dst = linebuf;
|
|
dst_end = dst + LCD_WIDTH;
|
|
gy = y - _grey_info.y;
|
|
gx = -_grey_info.x;
|
|
|
|
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
|
|
gsrc = _grey_info.values + _GREY_MULUQ(_grey_info.width, gy);
|
|
|
|
#if LCD_DEPTH == 2
|
|
src = rb->lcd_framebuffer + _GREY_MULUQ(LCD_FBWIDTH, y);
|
|
|
|
do
|
|
{
|
|
if (((unsigned)gy < (unsigned)_grey_info.height)
|
|
&& ((unsigned)gx < (unsigned)_grey_info.width))
|
|
{
|
|
*dst++ = *gsrc++;
|
|
*dst++ = *gsrc++;
|
|
*dst++ = *gsrc++;
|
|
*dst++ = *gsrc++;
|
|
}
|
|
else
|
|
{
|
|
unsigned data = *src;
|
|
*dst++ = colorindex[(data >> 6) & 3];
|
|
*dst++ = colorindex[(data >> 4) & 3];
|
|
*dst++ = colorindex[(data >> 2) & 3];
|
|
*dst++ = colorindex[data & 3];
|
|
}
|
|
gx++, src++;
|
|
}
|
|
while (dst < dst_end);
|
|
|
|
#endif /* LCD_DEPTH */
|
|
#elif LCD_PIXELFORMAT == VERTICAL_PACKING
|
|
gsrc = _grey_info.values + (~gy & _GREY_BMASK)
|
|
+ _GREY_MULUQ(_grey_info.width, gy & ~_GREY_BMASK);
|
|
|
|
#if LCD_DEPTH == 1
|
|
mask = BIT_N(y & 7);
|
|
src = rb->lcd_framebuffer + _GREY_MULUQ(LCD_WIDTH, y >> 3);
|
|
|
|
do
|
|
{
|
|
if (((unsigned)gy < (unsigned)_grey_info.height)
|
|
&& ((unsigned)gx < (unsigned)_grey_info.width))
|
|
{
|
|
val = *gsrc;
|
|
#ifdef HAVE_LCD_SPLIT
|
|
val -= val >> 7;
|
|
#endif
|
|
gsrc += _GREY_BSIZE;
|
|
}
|
|
else
|
|
{
|
|
#ifdef HAVE_NEGATIVE_LCD
|
|
val = (*src & mask) ? (NUM_SHADES-1) : 0;
|
|
#else
|
|
val = (*src & mask) ? 0 : (NUM_SHADES-1);
|
|
#endif
|
|
}
|
|
#ifdef HAVE_LCD_SPLIT
|
|
if (y < LCD_SPLIT_POS)
|
|
val |= 0x80;
|
|
#endif
|
|
*dst++ = val;
|
|
gx++, src++;
|
|
}
|
|
while (dst < dst_end);
|
|
|
|
#elif LCD_DEPTH == 2
|
|
shift = 2 * (y & 3);
|
|
src = rb->lcd_framebuffer + _GREY_MULUQ(LCD_WIDTH, y >> 2);
|
|
|
|
do
|
|
{
|
|
if (((unsigned)gy < (unsigned)_grey_info.height)
|
|
&& ((unsigned)gx < (unsigned)_grey_info.width))
|
|
{
|
|
*dst++ = *gsrc;
|
|
gsrc += _GREY_BSIZE;
|
|
}
|
|
else
|
|
{
|
|
*dst++ = colorindex[(*src >> shift) & 3];
|
|
}
|
|
gx++, src++;
|
|
}
|
|
while (dst < dst_end);
|
|
|
|
#endif /* LCD_DEPTH */
|
|
#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
|
|
gsrc = _grey_info.values + (~gy & _GREY_BMASK)
|
|
+ _GREY_MULUQ(_grey_info.width, gy & ~_GREY_BMASK);
|
|
|
|
#if LCD_DEPTH == 2
|
|
shift = y & 7;
|
|
src = rb->lcd_framebuffer + _GREY_MULUQ(LCD_WIDTH, y >> 3);
|
|
|
|
do
|
|
{
|
|
if (((unsigned)gy < (unsigned)_grey_info.height)
|
|
&& ((unsigned)gx < (unsigned)_grey_info.width))
|
|
{
|
|
*dst++ = *gsrc;
|
|
gsrc += _GREY_BSIZE;
|
|
}
|
|
else
|
|
{
|
|
data = (*src >> shift) & 0x0101;
|
|
*dst++ = colorindex[((data >> 7) | data) & 3];
|
|
}
|
|
gx++, src++;
|
|
}
|
|
while (dst < dst_end);
|
|
|
|
#endif /* LCD_DEPTH */
|
|
#endif /* LCD_PIXELFORMAT */
|
|
|
|
rb->write(fd, linebuf, BMP_LINESIZE);
|
|
}
|
|
}
|