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Wizard
Posts: 3,821
Karma: 19162882
Join Date: Nov 2012
Location: Te Riu-a-Māui
Device: Kobo Glo
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Extended line spacing patch for fw 3.0.0 and 3.0.1
Recent firmware has 15 positions on the line spacing slider. 5 positions are set from immediate values in code which the original line spacing patch bypasses, and the other 10 positions are set from a table of values which can be changed with the patch. The result is that after applying the original patch there are only 10 positions on the line spacing slider.
I have extended the patch to allow 4 of the code-injected values to be modified rather than bypassed. This gives a slider with 14 positions, although to simplify the patch the 4 code injected values must be chosen from a limited table of values.
This is the extended line spacing patch patch for firmware 3.0.1 (644485e229) (tested on my Glo).
Spoiler:
Code:
<Patch>
# For firmware 3.0.1 (644485e229)
patch_name = `My 14 line spacing values`
patch_enable = `yes`
# Bypass code-injected values 1.0, 1.2, 1.5, 2.0, 3.0
#replace_bytes = 7493AE, 26 F6 AE EA, 00 46 00 46
#replace_bytes = 7493FC, 26 F6 86 EA, 00 46 00 46
#replace_bytes = 749422, 26 F6 74 EA, 00 46 00 46
replace_bytes = 749458, 26 F6 58 EA, 00 46 00 46
#replace_bytes = 7494B4, 26 F6 2A EA, 00 46 00 46
# Table A
# E0 = 0.50, E1 = 0.53125, E2 = 0.5625, E3 = 0.59375
# E4 = 0.625, E5 = 0.65625, E6 = 0.6875, E7 = 0.71875
# E8 = 0.75, E9 = 0.78125, EA = 0.8125, EB = 0.84375
# EC = 0.875, ED = 0.90625, EE = 0.9375, EF = 0.96875
# F0 = 1.0, F1 = 1.0625, F2 = 1.125, F3 = 1.1875
# F4 = 1.25, F5 = 1.3125, F6 = 1.375, F7 = 1.4375
# F8 = 1.5 ...
#
# Table B ... E7=0.725
# E8 = 0.75625, E9 = 0.7875, EA = 0.81875, EB = 0.85
# EC = 0.88125, ED = 0.9125, EE = 0.94375, EF = 0.975
# F0 = 1.0125, F1 = 1.075, F2 = 1.1375, F3 = 1.2
# F4 = 1.2625 F5 = 1.325 F6 = 1.3875, F7 = 1.45
# F8 = 1.5125 ...
# First code-injected value 1.0
# Replace byte with a value from table A:
replace_bytes = 7493A2, F0, E8
# Second code-injected value 1.2
# Replace byte with a value from table B:
replace_bytes = 7493F2, F3, EB
# Third code-injected value 1.5
# Replace byte with a value from table A:
replace_bytes = 749418, F8, ED
# Last code-injected value 3.0
# Select Table A:
replace_bytes = 7494A8, C4 F2, C3 F6
replace_bytes = 7494AB, 03, 73
# Replace byte with a value from table A.
replace_bytes = 7494AA, 08, F4
# Other values for replace
# 1.0 0.75
replace_float = 7494F8, 1.05, 0.765
replace_float = 749500, 1.07, 0.8
replace_float = 749508, 1.1, 0.83
# 1.2 0.85
replace_float = 749510, 1.35, 0.865
# 1.5 0.90625
replace_float = 749518, 1.7, 0.925
replace_float = 749520, 1.8, 0.95
# 2.0 ----
replace_float = 749528, 2.2, 1.0
replace_float = 749530, 2.4, 1.05
replace_float = 749538, 2.6, 1.1
replace_float = 749540, 2.8, 1.175
# 3.0 1.25
</Patch>
This is the extended line spacing patch patch for firmware 3.0.0 (0cbc3626b3) (not tested).
Spoiler:
Code:
<Patch>
# For firmware 3.0.0 (0cbc3626b3)
patch_name = `My 14 line spacing values`
patch_enable = `yes`
# Bypass code-injected values 1.0, 1.2, 1.5, 2.0, 3.0
#replace_bytes = 817CEE, 57 F5 16 EE, 00 46 00 46
#replace_bytes = 817D3C, 57 F5 EE ED, 00 46 00 46
#replace_bytes = 817D62, 57 F5 DC ED, 00 46 00 46
replace_bytes = 817D98, 57 F5 C0 ED, 00 46 00 46
#replace_bytes = 817DF4, 57 F5 92 ED, 00 46 00 46
# Table A
# E0 = 0.50, E1 = 0.53125, E2 = 0.5625, E3 = 0.59375
# E4 = 0.625, E5 = 0.65625, E6 = 0.6875, E7 = 0.71875
# E8 = 0.75, E9 = 0.78125, EA = 0.8125, EB = 0.84375
# EC = 0.875, ED = 0.90625, EE = 0.9375, EF = 0.96875
# F0 = 1.0, F1 = 1.0625, F2 = 1.125, F3 = 1.1875
# F4 = 1.25, F5 = 1.3125, F6 = 1.375, F7 = 1.4375
# F8 = 1.5 ...
#
# Table B ... E7=0.725
# E8 = 0.75625, E9 = 0.7875, EA = 0.81875, EB = 0.85
# EC = 0.88125, ED = 0.9125, EE = 0.94375, EF = 0.975
# F0 = 1.0125, F1 = 1.075, F2 = 1.1375, F3 = 1.2
# F4 = 1.2625 F5 = 1.325 F6 = 1.3875, F7 = 1.45
# F8 = 1.5125 ...
# First code-injected value 1.0
# Replace byte with a value from table A:
replace_bytes = 817CE2, F0, E8
# Second code-injected value 1.2
# Replace byte with a value from table B:
replace_bytes = 817D32, F3, EB
# Third code-injected value 1.5
# Replace byte with a value from table A:
replace_bytes = 817D58, F8, ED
# Last code-injected value 3.0
# Select Table A:
replace_bytes = 817DE8, C4 F2, C3 F6
replace_bytes = 817DEB, 03, 73
# Replace byte with a value from table A.
replace_bytes = 817DEA, 08, F4
# Other values for replace
# 1.0 0.75
replace_float = 817E38, 1.05, 0.765
replace_float = 817E40, 1.07, 0.8
replace_float = 817E48, 1.1, 0.83
# 1.2 0.85
replace_float = 817E50, 1.35, 0.865
# 1.5 0.90625
replace_float = 817E58, 1.7, 0.925
replace_float = 817E60, 1.8, 0.95
# 2.0 ----
replace_float = 817E68, 2.2, 1.0
replace_float = 817E70, 2.4, 1.05
replace_float = 817E78, 2.6, 1.1
replace_float = 817E80, 2.8, 1.175
# 3.0 1.25
</Patch>
To change the code injected values just choose a value from the appropriate table and replace the byte at the end of the line after the "# Replace byte with value from table ..." comments. If you don't modify the patch you will get the following 14 line spacing values: {0.75, 0.765, 0.8, 0.83, 0.85, 0.865, 0.90625, 0.925, 0.95, 1.0, 1.05. 1.1, 1.175. 1.25}
Last edited by GeoffR; 11-29-2013 at 01:14 AM.
Reason: update to 14 value patch for 3.0.0 and 3.0.1
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