add utf8, some glyphs, and more font rendering options
This commit is contained in:
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#include "font.h"
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#include "utf8.h"
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#include <stdint.h>
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#define FONT_EXTRAS_START (0x7e - 0x20 + 1)
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const struct FontSymbol font[] = {
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// ASCII from 0x20 to 0x7e are ordered at the beginning for quick access by index
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{.symbol=" ", .graphic = {0x00, 0x00, 0x00, 0x00, 0x00}}, // 0x20
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{.symbol="!", .graphic = {0x00, 0x00, 0x5f, 0x00, 0x00}}, // 0x21
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{.symbol="\"", .graphic = {0x00, 0x07, 0x00, 0x07, 0x00}}, // 0x22
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{.symbol="#", .graphic = {0x14, 0x7f, 0x14, 0x7f, 0x14}}, // 0x23
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{.symbol="$", .graphic = {0x24, 0x2a, 0x7f, 0x2a, 0x12}}, // 0x24
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{.symbol="%", .graphic = {0x23, 0x13, 0x08, 0x64, 0x62}}, // 0x25
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{.symbol="&", .graphic = {0x36, 0x49, 0x55, 0x22, 0x50}}, // 0x26
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{.symbol="'", .graphic = {0x00, 0x05, 0x03, 0x00, 0x00}}, // 0x27
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{.symbol="(", .graphic = {0x00, 0x1c, 0x22, 0x41, 0x00}}, // 0x28
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{.symbol=")", .graphic = {0x00, 0x41, 0x22, 0x1c, 0x00}}, // 0x29
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{.symbol="*", .graphic = {0x14, 0x08, 0x3e, 0x08, 0x14}}, // 0x2a
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{.symbol="+", .graphic = {0x08, 0x08, 0x3e, 0x08, 0x08}}, // 0x2b
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{.symbol=",", .graphic = {0x00, 0x50, 0x30, 0x00, 0x00}}, // 0x2c
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{.symbol="-", .graphic = {0x08, 0x08, 0x08, 0x08, 0x08}}, // 0x2d
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{.symbol=".", .graphic = {0x00, 0x60, 0x60, 0x00, 0x00}}, // 0x2e
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{.symbol="/", .graphic = {0x20, 0x10, 0x08, 0x04, 0x02}}, // 0x2f
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{.symbol="0", .graphic = {0x3e, 0x51, 0x49, 0x45, 0x3e}}, // 0x30
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{.symbol="1", .graphic = {0x00, 0x42, 0x7f, 0x40, 0x00}}, // 0x31
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{.symbol="2", .graphic = {0x42, 0x61, 0x51, 0x49, 0x46}}, // 0x32
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{.symbol="3", .graphic = {0x21, 0x41, 0x45, 0x4b, 0x31}}, // 0x33
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{.symbol="4", .graphic = {0x18, 0x14, 0x12, 0x7f, 0x10}}, // 0x34
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{.symbol="5", .graphic = {0x27, 0x45, 0x45, 0x45, 0x39}}, // 0x35
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{.symbol="6", .graphic = {0x3c, 0x4a, 0x49, 0x49, 0x30}}, // 0x36
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{.symbol="7", .graphic = {0x01, 0x71, 0x09, 0x05, 0x03}}, // 0x37
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{.symbol="8", .graphic = {0x36, 0x49, 0x49, 0x49, 0x36}}, // 0x38
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{.symbol="9", .graphic = {0x06, 0x49, 0x49, 0x29, 0x1e}}, // 0x39
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{.symbol=":", .graphic = {0x00, 0x36, 0x36, 0x00, 0x00}}, // 0x3a
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{.symbol=";", .graphic = {0x00, 0x56, 0x36, 0x00, 0x00}}, // 0x3b
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{.symbol="<", .graphic = {0x08, 0x14, 0x22, 0x41, 0x00}}, // 0x3c
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{.symbol="=", .graphic = {0x14, 0x14, 0x14, 0x14, 0x14}}, // 0x3d
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{.symbol=">", .graphic = {0x00, 0x41, 0x22, 0x14, 0x08}}, // 0x3e
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{.symbol="?", .graphic = {0x02, 0x01, 0x51, 0x09, 0x06}}, // 0x3f
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{.symbol="@", .graphic = {0x32, 0x49, 0x79, 0x41, 0x3e}}, // 0x40
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{.symbol="A", .graphic = {0x7e, 0x11, 0x11, 0x11, 0x7e}}, // 0x41
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{.symbol="B", .graphic = {0x7f, 0x49, 0x49, 0x49, 0x36}}, // 0x42
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{.symbol="C", .graphic = {0x3e, 0x41, 0x41, 0x41, 0x22}}, // 0x43
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{.symbol="D", .graphic = {0x7f, 0x41, 0x41, 0x22, 0x1c}}, // 0x44
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{.symbol="E", .graphic = {0x7f, 0x49, 0x49, 0x49, 0x41}}, // 0x45
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{.symbol="F", .graphic = {0x7f, 0x09, 0x09, 0x09, 0x01}}, // 0x46
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{.symbol="G", .graphic = {0x3e, 0x41, 0x49, 0x49, 0x7a}}, // 0x47
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{.symbol="H", .graphic = {0x7f, 0x08, 0x08, 0x08, 0x7f}}, // 0x48
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{.symbol="I", .graphic = {0x00, 0x41, 0x7f, 0x41, 0x00}}, // 0x49
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{.symbol="J", .graphic = {0x20, 0x40, 0x41, 0x3f, 0x01}}, // 0x4a
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{.symbol="K", .graphic = {0x7f, 0x08, 0x14, 0x22, 0x41}}, // 0x4b
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{.symbol="L", .graphic = {0x7f, 0x40, 0x40, 0x40, 0x40}}, // 0x4c
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{.symbol="M", .graphic = {0x7f, 0x02, 0x0c, 0x02, 0x7f}}, // 0x4d
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{.symbol="N", .graphic = {0x7f, 0x04, 0x08, 0x10, 0x7f}}, // 0x4e
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{.symbol="O", .graphic = {0x3e, 0x41, 0x41, 0x41, 0x3e}}, // 0x4f
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{.symbol="P", .graphic = {0x7f, 0x09, 0x09, 0x09, 0x06}}, // 0x50
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{.symbol="Q", .graphic = {0x3e, 0x41, 0x51, 0x21, 0x5e}}, // 0x51
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{.symbol="R", .graphic = {0x7f, 0x09, 0x19, 0x29, 0x46}}, // 0x52
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{.symbol="S", .graphic = {0x46, 0x49, 0x49, 0x49, 0x31}}, // 0x53
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{.symbol="T", .graphic = {0x01, 0x01, 0x7f, 0x01, 0x01}}, // 0x54
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{.symbol="U", .graphic = {0x3f, 0x40, 0x40, 0x40, 0x3f}}, // 0x55
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{.symbol="V", .graphic = {0x1f, 0x20, 0x40, 0x20, 0x1f}}, // 0x56
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{.symbol="W", .graphic = {0x3f, 0x40, 0x38, 0x40, 0x3f}}, // 0x57
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{.symbol="X", .graphic = {0x63, 0x14, 0x08, 0x14, 0x63}}, // 0x58
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{.symbol="Y", .graphic = {0x07, 0x08, 0x70, 0x08, 0x07}}, // 0x59
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{.symbol="Z", .graphic = {0x61, 0x51, 0x49, 0x45, 0x43}}, // 0x5a
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{.symbol="[", .graphic = {0x00, 0x7f, 0x41, 0x41, 0x00}}, // 0x5b
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{.symbol="\\", .graphic = {0x02, 0x04, 0x08, 0x10, 0x20}}, // 0x5c
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{.symbol="]", .graphic = {0x00, 0x41, 0x41, 0x7f, 0x00}}, // 0x5d
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{.symbol="^", .graphic = {0x04, 0x02, 0x01, 0x02, 0x04}}, // 0x5e
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{.symbol="_", .graphic = {0x40, 0x40, 0x40, 0x40, 0x40}}, // 0x5f
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{.symbol="`", .graphic = {0x00, 0x01, 0x02, 0x04, 0x00}}, // 0x60
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{.symbol="a", .graphic = {0x20, 0x54, 0x54, 0x54, 0x78}}, // 0x61
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{.symbol="b", .graphic = {0x7f, 0x48, 0x44, 0x44, 0x38}}, // 0x62
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{.symbol="c", .graphic = {0x38, 0x44, 0x44, 0x44, 0x20}}, // 0x63
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{.symbol="d", .graphic = {0x38, 0x44, 0x44, 0x48, 0x7f}}, // 0x64
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{.symbol="e", .graphic = {0x38, 0x54, 0x54, 0x54, 0x18}}, // 0x65
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{.symbol="f", .graphic = {0x08, 0x7e, 0x09, 0x01, 0x02}}, // 0x66
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{.symbol="g", .graphic = {0x0c, 0x52, 0x52, 0x52, 0x3e}}, // 0x67
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{.symbol="h", .graphic = {0x7f, 0x08, 0x04, 0x04, 0x78}}, // 0x68
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{.symbol="i", .graphic = {0x00, 0x44, 0x7d, 0x40, 0x00}}, // 0x69
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{.symbol="j", .graphic = {0x20, 0x40, 0x44, 0x3d, 0x00}}, // 0x6a
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{.symbol="k", .graphic = {0x7f, 0x10, 0x28, 0x44, 0x00}}, // 0x6b
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{.symbol="l", .graphic = {0x00, 0x41, 0x7f, 0x40, 0x00}}, // 0x6c
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{.symbol="m", .graphic = {0x7c, 0x04, 0x18, 0x04, 0x78}}, // 0x6d
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{.symbol="n", .graphic = {0x7c, 0x08, 0x04, 0x04, 0x78}}, // 0x6e
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{.symbol="o", .graphic = {0x38, 0x44, 0x44, 0x44, 0x38}}, // 0x6f
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{.symbol="p", .graphic = {0x7c, 0x14, 0x14, 0x14, 0x08}}, // 0x70
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{.symbol="q", .graphic = {0x08, 0x14, 0x14, 0x18, 0x7c}}, // 0x71
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{.symbol="r", .graphic = {0x7c, 0x08, 0x04, 0x04, 0x08}}, // 0x72
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{.symbol="s", .graphic = {0x48, 0x54, 0x54, 0x54, 0x20}}, // 0x73
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{.symbol="t", .graphic = {0x04, 0x3f, 0x44, 0x40, 0x20}}, // 0x74
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{.symbol="u", .graphic = {0x3c, 0x40, 0x40, 0x20, 0x7c}}, // 0x75
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{.symbol="v", .graphic = {0x1c, 0x20, 0x40, 0x20, 0x1c}}, // 0x76
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{.symbol="w", .graphic = {0x3c, 0x40, 0x30, 0x40, 0x3c}}, // 0x77
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{.symbol="x", .graphic = {0x44, 0x28, 0x10, 0x28, 0x44}}, // 0x78
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{.symbol="y", .graphic = {0x0c, 0x50, 0x50, 0x50, 0x3c}}, // 0x79
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{.symbol="z", .graphic = {0x44, 0x64, 0x54, 0x4c, 0x44}}, // 0x7a
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{.symbol="{", .graphic = {0x00, 0x08, 0x36, 0x41, 0x00}}, // 0x7b
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{.symbol="|", .graphic = {0x00, 0x00, 0x7f, 0x00, 0x00}}, // 0x7c
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{.symbol="}", .graphic = {0x00, 0x41, 0x36, 0x08, 0x00}}, // 0x7d
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{.symbol="~", .graphic = {0x10, 0x08, 0x08, 0x10, 0x08}}, // 0x7e
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// start of UTF8 glyphs. These can include custom graphics mapped to codepoints
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{.symbol="�", .graphic = {0xFF, 0x81, 0x81, 0x81, 0xFF}}, // box
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{.symbol="×", .graphic = { 0x22, 0x14, 0x08, 0x14, 0x22 }}, // cross
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{.symbol="↑", .graphic = { 0x08, 0x04, 0x3e, 0x04, 0x08 }}, // arrow_up
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{.symbol="↓", .graphic = { 0x08, 0x10, 0x3e, 0x10, 0x08 }}, // arrow_down
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{.symbol="←", .graphic = { 0x08, 0x1c, 0x2a, 0x08, 0x08 }}, // arrow_left
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{.symbol="→", .graphic = { 0x08, 0x08, 0x2a, 0x1c, 0x08 }}, // arrow_right
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{.symbol="⏰", .graphic = { 0x1c, 0x22, 0x2e, 0x2a, 0x1c }}, // clock
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{.symbol="⌛", .graphic = { 0x63, 0x55, 0x4d, 0x55, 0x63 }}, // hourglass
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{.symbol="☸", .graphic = { 0x1c, 0x22, 0x2a, 0x22, 0x1c }}, // wheel
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{.symbol="⏎", .graphic = { 0x10, 0x38, 0x54, 0x10, 0x1e }}, // return
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{.symbol="🌡", .graphic = { 0x60, 0x9e, 0x81, 0x9e, 0x6a }}, // thermometer
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{.symbol="°", .graphic = { 0x00, 0x07, 0x05, 0x07, 0x00 }}, // degree
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{.symbol="🔙", .graphic = { 0x04, 0x4e, 0x55, 0x44, 0x38 }}, // back
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{.symbol="▶", .graphic = { 0x7f, 0x3e, 0x1c, 0x08, 0x00 }}, // tri_right
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{.symbol="◀", .graphic = { 0x00, 0x08, 0x1c, 0x3e, 0x7f }}, // tri_left
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// End of the list
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{},
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};
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const struct FontSymbol *Font_GetSymbol(struct Utf8Char ch) {
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if (ch.bytes[0] < ' ') {
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return &font[FONT_EXTRAS_START]; // replacement character
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}
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if (ch.bytes[0] < 127) {
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return &font[ch.bytes[0] - 0x20];
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}
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const struct FontSymbol *sym = &font[FONT_EXTRAS_START];
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while (sym->symbol[0]) {
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if (sym->uint == ch.uint) {
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return sym;
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}
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sym++;
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}
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return &font[FONT_EXTRAS_START]; // replacement character
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}
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@@ -0,0 +1,24 @@
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/**
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* TODO file description
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*
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* Created on 2020/01/04.
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*/
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#ifndef REFLOWER_FONT_H
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#define REFLOWER_FONT_H
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#include "font.h"
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#include "utf8.h"
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#include <stdint.h>
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struct FontSymbol {
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union {
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const char symbol[4];
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const uint32_t uint;
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};
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uint8_t graphic[5];
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};
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const struct FontSymbol *Font_GetSymbol(struct Utf8Char ch);
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#endif //REFLOWER_FONT_H
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@@ -0,0 +1,486 @@
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#include <driver/gpio.h>
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#include <arch/cc.h>
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#include <driver/spi_master.h>
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#include "nokia.h"
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#include "utf8.h"
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#include "font.h"
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#include <string.h>
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/* Pin definitions:
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Most of these pins can be moved to any digital or analog pin.
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DN(MOSI)and SCLK should be left where they are (SPI pins). The
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LED (backlight) pin should remain on a PWM-capable pin. */
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static const int scePin = 17; // SCE - Chip select, pin 3 on LCD.
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static const int rstPin = 16; // RST - Reset, pin 4 on LCD.
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static const int dcPin = 4; // DC - Data/Command, pin 5 on LCD.
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static const int sdinPin = 15; // DN(MOSI) - Serial data, pin 6 on LCD.
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static const int sclkPin = 13; // SCLK - Serial clock, pin 7 on LCD.
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/* PCD8544-specific defines: */
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#define LCD_COMMAND 0
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#define LCD_DATA 1
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#define DEFAULT_CONTRAST 48
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static spi_device_handle_t hSPI;
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/* The displayMap variable stores a buffer representation of the
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pixels on our display. There are 504 total bits in this array,
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same as how many pixels there are on a 84 x 48 display.
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Each byte in this array covers a 8-pixel vertical block on the
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display. Each successive byte covers the next 8-pixel column over
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until you reach the right-edge of the display and step down 8 rows.
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To update the display, we first have to write to this array, then
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call the updateDisplay() function, which sends this whole array
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to the PCD8544.
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Because the PCD8544 won't let us write individual pixels at a
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time, this is how we can make targeted changes to the display. */
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static uint8_t displayMap[LCD_WIDTH * LCD_HEIGHT / 8];
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// There are two memory banks in the LCD, data/RAM and commands.
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// This function sets the DC pin high or low depending, and then
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// sends the data byte
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static void LCD_SendBytes(bool data_or_command, const uint8_t *data, size_t len)
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{
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esp_err_t ret;
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spi_transaction_t t;
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if (len == 0) return; //no need to send anything
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memset(&t, 0, sizeof(t)); //Zero out the transaction
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t.length = len * 8; //Len is in bytes, transaction length is in bits.
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t.tx_buffer = data; //Data
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t.user = (void *) data_or_command; //D/C
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ret = spi_device_polling_transmit(hSPI, &t); //Transmit!
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assert(ret == ESP_OK); //Should have had no issues.
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}
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// There are two memory banks in the LCD, data/RAM and commands.
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// This function sets the DC pin high or low depending, and then
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// sends the data byte
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static void LCD_SendByte(bool data_or_command, uint8_t data)
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{
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esp_err_t ret;
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spi_transaction_t t;
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memset(&t, 0, sizeof(t)); //Zero out the transaction
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t.length = 8; // transaction length is in bits.
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t.tx_data[0] = data; //Data
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t.flags = SPI_TRANS_USE_TXDATA;
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t.user = (void *) data_or_command; //D/C
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ret = spi_device_polling_transmit(hSPI, &t); //Transmit!
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assert(ret == ESP_OK); //Should have had no issues.
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}
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// This function sets a pixel on displayMap to your preferred
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// color. 1=Black, 0= white.
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void LCD_setPixel(int x, int y, bool bw)
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{
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// First, double check that the coordinate is in range.
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if ((x >= 0) && (x < LCD_WIDTH) && (y >= 0) && (y < LCD_HEIGHT)) {
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uint8_t shift = y % 8;
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if (bw) // If black, set the bit.
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displayMap[x + (y / 8) * LCD_WIDTH] |= 1 << shift;
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else // If white clear the bit.
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displayMap[x + (y / 8) * LCD_WIDTH] &= ~(1 << shift);
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}
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}
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// setLine draws a line from x0,y0 to x1,y1 with the set color.
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// This function was grabbed from the SparkFun ColorLCDShield
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// library.
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void LCD_setLine(int x0, int y0, int x1, int y1, bool bw)
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{
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int dy = y1 - y0; // Difference between y0 and y1
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int dx = x1 - x0; // Difference between x0 and x1
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int stepx, stepy;
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if (dy < 0) {
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dy = -dy;
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stepy = -1;
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}
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else
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stepy = 1;
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if (dx < 0) {
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dx = -dx;
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stepx = -1;
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}
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else
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stepx = 1;
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dy <<= 1; // dy is now 2*dy
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dx <<= 1; // dx is now 2*dx
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LCD_setPixel(x0, y0, bw); // Draw the first pixel.
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if (dx > dy) {
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int fraction = dy - (dx >> 1);
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while (x0 != x1) {
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if (fraction >= 0) {
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y0 += stepy;
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fraction -= dx;
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}
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x0 += stepx;
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fraction += dy;
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LCD_setPixel(x0, y0, bw);
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}
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}
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else {
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int fraction = dx - (dy >> 1);
|
||||
while (y0 != y1) {
|
||||
if (fraction >= 0) {
|
||||
x0 += stepx;
|
||||
fraction -= dy;
|
||||
}
|
||||
y0 += stepy;
|
||||
fraction += dx;
|
||||
LCD_setPixel(x0, y0, bw);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// setRect will draw a rectangle from x0,y0 top-left corner to
|
||||
// a x1,y1 bottom-right corner. Can be filled with the fill
|
||||
// parameter, and colored with bw.
|
||||
// This function was grabbed from the SparkFun ColorLCDShield
|
||||
// library.
|
||||
void LCD_setRect(int x0, int y0, int x1, int y1, bool fill, bool bw)
|
||||
{
|
||||
// check if the rectangle is to be filled
|
||||
if (fill == 1) {
|
||||
int xDiff;
|
||||
|
||||
if (x0 > x1)
|
||||
xDiff = x0 - x1; //Find the difference between the x vars
|
||||
else
|
||||
xDiff = x1 - x0;
|
||||
|
||||
while (xDiff > 0) {
|
||||
LCD_setLine(x0, y0, x0, y1, bw);
|
||||
|
||||
if (x0 > x1)
|
||||
x0--;
|
||||
else
|
||||
x0++;
|
||||
|
||||
xDiff--;
|
||||
}
|
||||
}
|
||||
else {
|
||||
// best way to draw an unfilled rectangle is to draw four lines
|
||||
LCD_setLine(x0, y0, x1, y0, bw);
|
||||
LCD_setLine(x0, y1, x1, y1, bw);
|
||||
LCD_setLine(x0, y0, x0, y1, bw);
|
||||
LCD_setLine(x1, y0, x1, y1, bw);
|
||||
}
|
||||
}
|
||||
|
||||
// setCircle draws a circle centered around x0,y0 with a defined
|
||||
// radius. The circle can be black or white. And have a line
|
||||
// thickness ranging from 1 to the radius of the circle.
|
||||
// This function was grabbed from the SparkFun ColorLCDShield
|
||||
// library.
|
||||
void LCD_setCircle(int x0, int y0, int radius, bool bw, int lineThickness)
|
||||
{
|
||||
for (int r = 0; r < lineThickness; r++) {
|
||||
int f = 1 - radius;
|
||||
int ddF_x = 0;
|
||||
int ddF_y = -2 * radius;
|
||||
int x = 0;
|
||||
int y = radius;
|
||||
|
||||
LCD_setPixel(x0, y0 + radius, bw);
|
||||
LCD_setPixel(x0, y0 - radius, bw);
|
||||
LCD_setPixel(x0 + radius, y0, bw);
|
||||
LCD_setPixel(x0 - radius, y0, bw);
|
||||
|
||||
while (x < y) {
|
||||
if (f >= 0) {
|
||||
y--;
|
||||
ddF_y += 2;
|
||||
f += ddF_y;
|
||||
}
|
||||
x++;
|
||||
ddF_x += 2;
|
||||
f += ddF_x + 1;
|
||||
|
||||
LCD_setPixel(x0 + x, y0 + y, bw);
|
||||
LCD_setPixel(x0 - x, y0 + y, bw);
|
||||
LCD_setPixel(x0 + x, y0 - y, bw);
|
||||
LCD_setPixel(x0 - x, y0 - y, bw);
|
||||
LCD_setPixel(x0 + y, y0 + x, bw);
|
||||
LCD_setPixel(x0 - y, y0 + x, bw);
|
||||
LCD_setPixel(x0 + y, y0 - x, bw);
|
||||
LCD_setPixel(x0 - y, y0 - x, bw);
|
||||
}
|
||||
radius--;
|
||||
}
|
||||
}
|
||||
|
||||
// This function will draw a char (defined in the ASCII table
|
||||
// near the beginning of this sketch) at a defined x and y).
|
||||
// The color can be either black (1) or white (0).
|
||||
void LCD_setChar(struct Utf8Char character, int x, int y, bool bw)
|
||||
{
|
||||
LCD_setCharEx(character, x, y, bw, 1);
|
||||
}
|
||||
|
||||
void LCD_setCharEx(struct Utf8Char character, int x, int y, bool bw, uint8_t size)
|
||||
{
|
||||
const struct FontSymbol *symbol = Font_GetSymbol(character);
|
||||
bool backfill = size &0x80;
|
||||
size &= 0x7F;
|
||||
|
||||
uint8_t column; // temp byte to store character's column bitmap
|
||||
for (int i = 0; i < 5; i++) // 5 columns (x) per character
|
||||
{
|
||||
column = symbol->graphic[i];
|
||||
for (int j = 0; j < 8; j++) // 8 rows (y) per character
|
||||
{
|
||||
bool bit = column & (0x01 << j);
|
||||
|
||||
if (size == 1) {
|
||||
if (bit) {// test bits to set pixels
|
||||
LCD_setPixel(x + i, y + j, bw);
|
||||
} else if(backfill) {
|
||||
LCD_setPixel(x + i, y + j, !bw);
|
||||
}
|
||||
} else if (size == 2) {
|
||||
if (bit) {// test bits to set pixels
|
||||
LCD_setPixel(x + i * 2, y + j * 2, bw);
|
||||
LCD_setPixel(x + i * 2 + 1, y + j * 2, bw);
|
||||
LCD_setPixel(x + i * 2, y + j * 2 + 1, bw);
|
||||
LCD_setPixel(x + i * 2 + 1, y + j * 2 + 1, bw);
|
||||
} else if(backfill) {
|
||||
LCD_setPixel(x + i * 2, y + j * 2, !bw);
|
||||
LCD_setPixel(x + i * 2 + 1, y + j * 2, !bw);
|
||||
LCD_setPixel(x + i * 2, y + j * 2 + 1, !bw);
|
||||
LCD_setPixel(x + i * 2 + 1, y + j * 2 + 1, !bw);
|
||||
}
|
||||
} else if (size == 3) {
|
||||
if (bit) {// test bits to set pixels
|
||||
LCD_setPixel(x + i, y + j, bw);
|
||||
LCD_setPixel(x + i + 1, y + j, bw);
|
||||
} else if(backfill) {
|
||||
LCD_setPixel(x + i, y + j, !bw);
|
||||
LCD_setPixel(x + i + 1, y + j, !bw);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// setStr draws a string of characters, calling setChar with
|
||||
// progressive coordinates until it's done.
|
||||
// This function was grabbed from the SparkFun ColorLCDShield
|
||||
// library.
|
||||
void LCD_setStr(const char *dString, int x, int y, bool bw)
|
||||
{
|
||||
LCD_setStrEx(dString, x, y, bw, 1);
|
||||
}
|
||||
|
||||
// setStr draws a string of characters, calling setChar with
|
||||
// progressive coordinates until it's done.
|
||||
// This function was grabbed from the SparkFun ColorLCDShield
|
||||
// library.
|
||||
void LCD_setStrEx(const char *dString, int x, int y, bool bw, uint8_t size)
|
||||
{
|
||||
struct Utf8Iterator iter;
|
||||
Utf8Iterator_Start(&iter, dString);
|
||||
bool backfill = size & 0x80;
|
||||
uint8_t size_real = size & 0x7F;
|
||||
|
||||
struct Utf8Char uchar;
|
||||
while ((uchar = Utf8Iterator_Next(&iter)).uint) {
|
||||
LCD_setCharEx(uchar, x, y, bw, size);
|
||||
|
||||
if (size_real == 1) {
|
||||
x += 5;
|
||||
if (backfill) {
|
||||
for (int i = y; i < y + 8; i++) {
|
||||
LCD_setPixel(x, i, !bw);
|
||||
}
|
||||
}
|
||||
x++;
|
||||
if (x > (LCD_WIDTH - 5)) // Enables wrap around
|
||||
{
|
||||
x = 0;
|
||||
y += 8;
|
||||
}
|
||||
} else if (size_real == 2) {
|
||||
x += 10;
|
||||
if (backfill) {
|
||||
for (int i = y; i < y + 16; i++) {
|
||||
LCD_setPixel(x, i, !bw);
|
||||
LCD_setPixel(x + 1, i, !bw);
|
||||
}
|
||||
}
|
||||
x+=2;
|
||||
if (x > (LCD_WIDTH - 10)) // Enables wrap around
|
||||
{
|
||||
x = 0;
|
||||
y += 16;
|
||||
}
|
||||
} else if (size_real == 3) {
|
||||
x += 6;
|
||||
if (backfill) {
|
||||
for (int i = y; i < y + 8; i++) {
|
||||
LCD_setPixel(x, i, !bw);
|
||||
LCD_setPixel(x + 1, i, !bw);
|
||||
}
|
||||
}
|
||||
x+=1;
|
||||
if (x > (LCD_WIDTH - 6)) // Enables wrap around
|
||||
{
|
||||
x = 0;
|
||||
y += 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// This function will draw an array over the screen. (For now) the
|
||||
// array must be the same size as the screen, covering the entirety
|
||||
// of the display.
|
||||
// Also, the array must reside in FLASH and declared with PROGMEM.
|
||||
void LCD_setBitmap(const char *bitArray)
|
||||
{
|
||||
for (int i = 0; i < (LCD_WIDTH * LCD_HEIGHT / 8); i++) {
|
||||
char c = bitArray[i];
|
||||
displayMap[i] = c;
|
||||
}
|
||||
}
|
||||
|
||||
// This function clears the entire display either white (0) or
|
||||
// black (1).
|
||||
// The screen won't actually clear until you call updateDisplay()!
|
||||
void LCD_clearDisplay(bool bw)
|
||||
{
|
||||
for (int i = 0; i < (LCD_WIDTH * LCD_HEIGHT / 8); i++) {
|
||||
if (bw)
|
||||
displayMap[i] = 0xFF;
|
||||
else
|
||||
displayMap[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
// Helpful function to directly command the LCD to go to a
|
||||
// specific x,y coordinate.
|
||||
static void gotoXY(int x, int y)
|
||||
{
|
||||
const uint8_t cmd[2] = {
|
||||
0x80 | x,
|
||||
0x40 | y,
|
||||
};
|
||||
LCD_SendBytes(LCD_COMMAND, cmd, 2);
|
||||
}
|
||||
|
||||
// This will actually draw on the display, whatever is currently
|
||||
// in the displayMap array.
|
||||
void LCD_updateDisplay()
|
||||
{
|
||||
spi_device_acquire_bus(hSPI, portMAX_DELAY);
|
||||
gotoXY(0, 0);
|
||||
LCD_SendBytes(LCD_DATA, &displayMap[0], LCD_WIDTH * (LCD_HEIGHT / 8));
|
||||
spi_device_release_bus(hSPI);
|
||||
}
|
||||
|
||||
// Set contrast can set the LCD Vop to a value between 0 and 127.
|
||||
// 40-60 is usually a pretty good range.
|
||||
void LCD_setContrast(uint8_t contrast)
|
||||
{
|
||||
spi_device_acquire_bus(hSPI, portMAX_DELAY);
|
||||
const uint8_t cmd[3] = {
|
||||
0x21, //Tell LCD that extended commands follow
|
||||
0x80 | contrast,//Set LCD Vop (Contrast): Try 0xB1(good @ 3.3V) or 0xBF if your display is too dark
|
||||
0x20,//Set display mode
|
||||
};
|
||||
LCD_SendBytes(LCD_COMMAND, cmd, 3);
|
||||
spi_device_release_bus(hSPI);
|
||||
}
|
||||
|
||||
void LCD_invertDisplay(bool invert)
|
||||
{
|
||||
LCD_SendByte(LCD_COMMAND, 0x0C | invert);
|
||||
}
|
||||
|
||||
void LCD_invertDisplayData()
|
||||
{
|
||||
/* Indirect, swap bits in displayMap option: */
|
||||
for (int i = 0; i < (LCD_WIDTH * LCD_HEIGHT / 8); i++) {
|
||||
displayMap[i] ^= 0xFF;
|
||||
}
|
||||
}
|
||||
|
||||
//This function is called (in irq context!) just before a transmission starts. It will
|
||||
//set the D/C line to the value indicated in the user field.
|
||||
void lcd_spi_pre_transfer_callback(spi_transaction_t *t)
|
||||
{
|
||||
int dc = (int) t->user;
|
||||
gpio_set_level(dcPin, dc);
|
||||
}
|
||||
|
||||
//This sends the magical commands to the PCD8544
|
||||
void LCD_setup(void)
|
||||
{
|
||||
// clear the display array
|
||||
LCD_clearDisplay(0);
|
||||
|
||||
gpio_config_t output = {
|
||||
.pin_bit_mask = (1<<scePin) | (1<<rstPin) | (1<<dcPin) | (1<<sdinPin) | (1<<sclkPin),
|
||||
.mode = GPIO_MODE_OUTPUT
|
||||
};
|
||||
gpio_config(&output);
|
||||
|
||||
esp_err_t ret;
|
||||
spi_bus_config_t buscfg = {
|
||||
.miso_io_num=-1,
|
||||
.mosi_io_num=sdinPin,
|
||||
.sclk_io_num=sclkPin,
|
||||
.quadwp_io_num=-1,
|
||||
.quadhd_io_num=-1,
|
||||
.max_transfer_sz=LCD_WIDTH * LCD_HEIGHT, // ??? this doesnt seem to do anything in the driver
|
||||
};
|
||||
spi_device_interface_config_t devcfg = {
|
||||
.clock_speed_hz=4 * 1000 * 1000, // Hz
|
||||
// enable signal lead/lag
|
||||
.cs_ena_pretrans = 0,
|
||||
.cs_ena_posttrans = 0,
|
||||
.mode=0, //SPI mode 0
|
||||
.spics_io_num=scePin, //CS pin
|
||||
.queue_size=1, // we use the polling mode, so this does not matter
|
||||
.pre_cb=lcd_spi_pre_transfer_callback, //Specify pre-transfer callback to handle D/C line
|
||||
};
|
||||
|
||||
//Initialize the SPI bus
|
||||
ret = spi_bus_initialize(HSPI_HOST, &buscfg, 1);
|
||||
ESP_ERROR_CHECK(ret);
|
||||
//Attach the LCD to the SPI bus
|
||||
ret = spi_bus_add_device(HSPI_HOST, &devcfg, &hSPI);
|
||||
ESP_ERROR_CHECK(ret);
|
||||
|
||||
spi_device_acquire_bus(hSPI, portMAX_DELAY);
|
||||
{
|
||||
//Reset the LCD to a known state
|
||||
gpio_set_level(rstPin, 0);
|
||||
gpio_set_level(rstPin, 1);
|
||||
|
||||
const uint8_t magic[6] = {
|
||||
0x21, // Tell LCD extended commands follow
|
||||
0x80 + DEFAULT_CONTRAST, // Set LCD Vop (Contrast)
|
||||
0x04, // Set Temp coefficent
|
||||
0x14, // LCD bias mode 1:48 (try 0x13)
|
||||
//We must send 0x20 before modifying the display control mode
|
||||
0x20, // Clear extended option
|
||||
0x0C, // Set display control, normal mode.
|
||||
};
|
||||
LCD_SendBytes(LCD_COMMAND, &magic[0], 6);
|
||||
}
|
||||
spi_device_release_bus(hSPI);
|
||||
|
||||
// show the blank screen (display is in indefined state after boot)
|
||||
LCD_updateDisplay();
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,83 @@
|
||||
/* Pin definitions:
|
||||
Most of these pins can be moved to any digital or analog pin.
|
||||
DN(MOSI)and SCLK should be left where they are (SPI pins). The
|
||||
LED (backlight) pin should remain on a PWM-capable pin. */
|
||||
// SCE - Chip select, pin 3 on LCD.
|
||||
// RST - Reset, pin 4 on LCD.
|
||||
// DC - Data/Command, pin 5 on LCD.
|
||||
// DN(MOSI) - Serial data, pin 6 on LCD.
|
||||
// SCLK - Serial clock, pin 7 on LCD.
|
||||
// LED - Backlight LED, pin 8 on LCD.
|
||||
|
||||
/* 84x48 LCD Defines: */
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include "utf8.h"
|
||||
|
||||
#define LCD_WIDTH 84 // Note: x-coordinates go wide
|
||||
#define LCD_HEIGHT 48 // Note: y-coordinates go high
|
||||
#define WHITE 0 // For drawing pixels. A 0 draws white.
|
||||
#define BLACK 1 // A 1 draws black.
|
||||
|
||||
// This function sets a pixel on displayMap to your preferred
|
||||
// color. 1=Black, 0= white.
|
||||
void LCD_setPixel(int x, int y, bool bw);
|
||||
|
||||
// setLine draws a line from x0,y0 to x1,y1 with the set color
|
||||
void LCD_setLine(int x0, int y0, int x1, int y1, bool bw);
|
||||
|
||||
// setRect will draw a rectangle from x0,y0 top-left corner to
|
||||
// a x1,y1 bottom-right corner. Can be filled with the fill
|
||||
// parameter, and colored with bw.
|
||||
void LCD_setRect(int x0, int y0, int x1, int y1, bool fill, bool bw);
|
||||
|
||||
// setCircle draws a circle centered around x0,y0 with a defined
|
||||
// radius. The circle can be black or white. And have a line
|
||||
// thickness ranging from 1 to the radius of the circle.
|
||||
void LCD_setCircle (int x0, int y0, int radius, bool bw, int lineThickness);
|
||||
|
||||
/*
|
||||
FONT FUNCTIONS
|
||||
size = 1 ... normal
|
||||
size = 2 ... 2x
|
||||
size = 3 ... normal bold
|
||||
size | 0x80 ... clear background behind characters
|
||||
*/
|
||||
|
||||
|
||||
// This function will draw a char (defined in the ASCII table
|
||||
// near the beginning of this sketch) at a defined x and y).
|
||||
// The color can be either black (1) or white (0).
|
||||
void LCD_setChar(struct Utf8Char character, int x, int y, bool bw);
|
||||
|
||||
void LCD_setCharEx(struct Utf8Char character, int x, int y, bool bw, uint8_t size);
|
||||
|
||||
// setStr draws a string of characters, calling setChar with
|
||||
// progressive coordinates until it's done.
|
||||
// This function was grabbed from the SparkFun ColorLCDShield
|
||||
// library.
|
||||
void LCD_setStr(const char * dString, int x, int y, bool bw);
|
||||
|
||||
void LCD_setStrEx(const char *dString, int x, int y, bool bw, uint8_t size);
|
||||
|
||||
// This function clears the entire display either white (0) or
|
||||
// black (1).
|
||||
// The screen won't actually clear until you call updateDisplay()!
|
||||
void LCD_clearDisplay(bool bw);
|
||||
|
||||
// This will actually draw on the display, whatever is currently
|
||||
// in the displayMap array.
|
||||
void LCD_updateDisplay();
|
||||
|
||||
// Set contrast can set the LCD Vop to a value between 0 and 127.
|
||||
// 40-60 is usually a pretty good range.
|
||||
void LCD_setContrast(uint8_t contrast);
|
||||
|
||||
/* Invert colors */
|
||||
void LCD_invertDisplay(bool in_data);
|
||||
|
||||
/* Invert colors (hard change in data; does NOT send to display immediately) */
|
||||
void LCD_invertDisplayData();
|
||||
|
||||
//This sends the magical commands to the PCD8544
|
||||
void LCD_setup(void);
|
||||
@@ -0,0 +1,116 @@
|
||||
#include <stdint.h>
|
||||
#include "utf8.h"
|
||||
#include <string.h>
|
||||
|
||||
//
|
||||
// Created by MightyPork on 2017/08/20.
|
||||
//
|
||||
// UTF-8 parser - collects bytes of a code point before writing them
|
||||
// into a screen cell.
|
||||
//
|
||||
|
||||
const struct Utf8Char EMPTY_CHAR = (struct Utf8Char) { .uint = 0 };
|
||||
|
||||
// Code Points First Byte Second Byte Third Byte Fourth Byte
|
||||
// U+0000 - U+007F 00 - 7F
|
||||
// U+0080 - U+07FF C2 - DF 80 - BF
|
||||
// U+0800 - U+0FFF E0 *A0 - BF 80 - BF
|
||||
// U+1000 - U+CFFF E1 - EC 80 - BF 80 - BF
|
||||
// U+D000 - U+D7FF ED 80 - *9F 80 - BF
|
||||
// U+E000 - U+FFFF EE - EF 80 - BF 80 - BF
|
||||
// U+10000 - U+3FFFF F0 *90 - BF 80 - BF 80 - BF
|
||||
// U+40000 - U+FFFFF F1 - F3 80 - BF 80 - BF 80 - BF
|
||||
// U+100000 - U+10FFFF F4 80 - *8F 80 - BF 80 - BF
|
||||
|
||||
|
||||
/**
|
||||
* Handle a received character
|
||||
*/
|
||||
struct Utf8Char Utf8Parser_Handle(struct Utf8Parser *self, char c)
|
||||
{
|
||||
uint8_t *bytes = self->buffer.bytes;
|
||||
|
||||
uint8_t uc = (uint8_t)c;
|
||||
// collecting unicode glyphs...
|
||||
if (uc & 0x80) {
|
||||
if (self->utf_len == 0) {
|
||||
bytes[0] = uc;
|
||||
self->utf_j = 1;
|
||||
|
||||
// start
|
||||
if (uc == 0xC0 || uc == 0xC1 || uc > 0xF4) {
|
||||
// forbidden start codes
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if ((uc & 0xE0) == 0xC0) {
|
||||
self->utf_len = 2;
|
||||
}
|
||||
else if ((uc & 0xF0) == 0xE0) {
|
||||
self->utf_len = 3;
|
||||
}
|
||||
else if ((uc & 0xF8) == 0xF0) {
|
||||
self->utf_len = 4;
|
||||
}
|
||||
else {
|
||||
// chars over 127 that don't start unicode sequences
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
else {
|
||||
if ((uc & 0xC0) != 0x80) {
|
||||
bytes[self->utf_j++] = uc;
|
||||
goto fail;
|
||||
}
|
||||
else {
|
||||
bytes[self->utf_j++] = uc;
|
||||
if (self->utf_j >= self->utf_len) {
|
||||
// check for bad sequences - overlong or some other problem
|
||||
if (bytes[0] == 0xF4 && bytes[1] > 0x8F) goto fail;
|
||||
if (bytes[0] == 0xF0 && bytes[1] < 0x90) goto fail;
|
||||
if (bytes[0] == 0xED && bytes[1] > 0x9F) goto fail;
|
||||
if (bytes[0] == 0xE0 && bytes[1] < 0xA0) goto fail;
|
||||
|
||||
// trap for surrogates - those break javascript
|
||||
if (bytes[0] == 0xED && bytes[1] >= 0xA0 && bytes[1] <= 0xBF) goto fail;
|
||||
|
||||
goto success;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
bytes[0] = uc;
|
||||
goto success;
|
||||
}
|
||||
|
||||
return EMPTY_CHAR;
|
||||
|
||||
success:;
|
||||
struct Utf8Char result = self->buffer;
|
||||
self->buffer.uint = 0; // erase the buffer
|
||||
self->utf_len = 0;
|
||||
return result;
|
||||
|
||||
fail:
|
||||
self->buffer.uint = 0; // erase the buffer
|
||||
self->utf_len = 0;
|
||||
return EMPTY_CHAR;
|
||||
}
|
||||
|
||||
void Utf8Iterator_Start(struct Utf8Iterator *self, const char *source) {
|
||||
memset(self, 0, sizeof(struct Utf8Iterator));
|
||||
self->source = source;
|
||||
}
|
||||
|
||||
struct Utf8Char Utf8Iterator_Next(struct Utf8Iterator *self) {
|
||||
char c;
|
||||
struct Utf8Char uchar;
|
||||
while ((c = *self->source++) != 0) {
|
||||
uchar = Utf8Parser_Handle(&self->parser, c);
|
||||
if (uchar.uint) {
|
||||
return uchar;
|
||||
}
|
||||
}
|
||||
return EMPTY_CHAR;
|
||||
}
|
||||
@@ -0,0 +1,65 @@
|
||||
/**
|
||||
* TODO file description
|
||||
*
|
||||
* Created on 2020/01/04.
|
||||
*/
|
||||
|
||||
#ifndef LIQUIDTYPE_UTF8_H
|
||||
#define LIQUIDTYPE_UTF8_H
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
|
||||
struct Utf8Char {
|
||||
union {
|
||||
uint8_t bytes[4];
|
||||
uint32_t uint;
|
||||
};
|
||||
};
|
||||
|
||||
struct Utf8Parser {
|
||||
struct Utf8Char buffer;
|
||||
uint8_t utf_len;
|
||||
uint8_t utf_j;
|
||||
};
|
||||
|
||||
/**
|
||||
* Utf8 character iterator.
|
||||
*
|
||||
* Usage:
|
||||
* struct Utf8Iterator iter;
|
||||
* Utf8Iterator_Start(&iter, myString);
|
||||
*
|
||||
* union Utf8Char uchar;
|
||||
* while ((uchar = Utf8Iterator_Next(&iter)).uint) {
|
||||
* // do something with the char
|
||||
* }
|
||||
*
|
||||
* // Free myString if needed.
|
||||
* // The iterator does not need any cleanup if it lives on stack.
|
||||
*/
|
||||
struct Utf8Iterator {
|
||||
/* Characters to parse. The pointer is advanced as the iterator progresses. */
|
||||
const char *source;
|
||||
struct Utf8Parser parser;
|
||||
};
|
||||
|
||||
void Utf8Iterator_Start(struct Utf8Iterator *self, const char *source);
|
||||
|
||||
/**
|
||||
* Get the next character from the iterator; Returns empty character if there are no more characters to parse.
|
||||
*
|
||||
* Invalid characters are skipped.
|
||||
*/
|
||||
struct Utf8Char Utf8Iterator_Next(struct Utf8Iterator *self);
|
||||
|
||||
/**
|
||||
* Parse a character.
|
||||
*
|
||||
* The returned struct contains NIL (uint == 0) if no character is yet available.
|
||||
*
|
||||
* ASCII is passed through, utf-8 is collected and returned in one piece.
|
||||
*/
|
||||
struct Utf8Char Utf8Parser_Handle(struct Utf8Parser *self, char c);
|
||||
|
||||
#endif //LIQUIDTYPE_UTF8_H
|
||||
Reference in New Issue
Block a user