| author | ecalot
<ecalot> 2007-10-27 15:06:08 UTC |
| committer | ecalot
<ecalot> 2007-10-27 15:06:08 UTC |
| parent | 99622a609fb5311735bcf5d1e41d7a6a041eafb5 |
| FP/doc/FormatSpecifications | +16 | -5 |
| FP/doc/FormatSpecifications.tex | +16 | -5 |
diff --git a/FP/doc/FormatSpecifications b/FP/doc/FormatSpecifications index ff6d9b4..8673f6f 100644 --- a/FP/doc/FormatSpecifications +++ b/FP/doc/FormatSpecifications @@ -214,7 +214,8 @@ Table of Contents algorithm specified by those 4 bits. 3.2.2 Algorithms - RAW_LR means that the data was not compressed, it is used for small images. + RAW_LR means that the data has not been compressed in any way, it is used + for small images. The format is saved from left to right (LR) serialising a line to the next integer byte if necessary. In case the image was 16 colours, two pixels per byte (4bpp) will be used. In case the image @@ -780,9 +781,17 @@ Table of Contents Standard midi files 3.7. Internal PC Speaker - We are not so sure about it, but we think it is: - 2 unique bytes for headers - 3 bytes per note (2 for frequency and 1 for duration) + Header: 3 bytes + First byte: 0x00 (or 0x80 sometimes). + Next 2 bytes: how many beats per 2 seconds. + + Body: numberOfNotes*3 + Then, 3 bytes for each note: + - 2 bytes: US for frequency in hertz (0 if no sound, 1 or 2 if marker). + - 1 byte: UC for length in beats. + + Footer: 2 bytes + Last 2 bytes: 0x12 0x00. 3.8. Binary files Some binary files contains relevant information @@ -1313,6 +1322,7 @@ Table of Contents This document: Writing . . . . . . . . . . . . . . . . . . . . . . . . . Enrique Calot Corrections . . . . . . . . . . . . . . . . . . . . . Patrik Jakobsson + Hubai Tamas Reverse Engineering: Indexes . . . . . . . . . . . . . . . . . . . . . . . . . Enrique Calot @@ -1324,6 +1334,7 @@ Table of Contents LZG Compression . . . . . . . . . . . . . . . . . . . . . Anke Balderer Diego Essaya Sounds . . . . . . . . . . . . . . . . . . . . . . . Christian Lundheim + Palettes and Speaker Sounds . . . . . . . . . . . . . . . . . . . David PLV v1.0: Definition . . . . . . . . . . . . . . . . . . . . . . . Brendon James @@ -1332,7 +1343,7 @@ Table of Contents 9. License ~~~~~~~ - Copyright (c) 2004, 2005, 2006,2007 The Princed Project Team + Copyright (c) 2004, 2005, 2006, 2007 The Princed Project Team Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; diff --git a/FP/doc/FormatSpecifications.tex b/FP/doc/FormatSpecifications.tex index ff6d9b4..8673f6f 100644 --- a/FP/doc/FormatSpecifications.tex +++ b/FP/doc/FormatSpecifications.tex @@ -214,7 +214,8 @@ Table of Contents algorithm specified by those 4 bits. 3.2.2 Algorithms - RAW_LR means that the data was not compressed, it is used for small images. + RAW_LR means that the data has not been compressed in any way, it is used + for small images. The format is saved from left to right (LR) serialising a line to the next integer byte if necessary. In case the image was 16 colours, two pixels per byte (4bpp) will be used. In case the image @@ -780,9 +781,17 @@ Table of Contents Standard midi files 3.7. Internal PC Speaker - We are not so sure about it, but we think it is: - 2 unique bytes for headers - 3 bytes per note (2 for frequency and 1 for duration) + Header: 3 bytes + First byte: 0x00 (or 0x80 sometimes). + Next 2 bytes: how many beats per 2 seconds. + + Body: numberOfNotes*3 + Then, 3 bytes for each note: + - 2 bytes: US for frequency in hertz (0 if no sound, 1 or 2 if marker). + - 1 byte: UC for length in beats. + + Footer: 2 bytes + Last 2 bytes: 0x12 0x00. 3.8. Binary files Some binary files contains relevant information @@ -1313,6 +1322,7 @@ Table of Contents This document: Writing . . . . . . . . . . . . . . . . . . . . . . . . . Enrique Calot Corrections . . . . . . . . . . . . . . . . . . . . . Patrik Jakobsson + Hubai Tamas Reverse Engineering: Indexes . . . . . . . . . . . . . . . . . . . . . . . . . Enrique Calot @@ -1324,6 +1334,7 @@ Table of Contents LZG Compression . . . . . . . . . . . . . . . . . . . . . Anke Balderer Diego Essaya Sounds . . . . . . . . . . . . . . . . . . . . . . . Christian Lundheim + Palettes and Speaker Sounds . . . . . . . . . . . . . . . . . . . David PLV v1.0: Definition . . . . . . . . . . . . . . . . . . . . . . . Brendon James @@ -1332,7 +1343,7 @@ Table of Contents 9. License ~~~~~~~ - Copyright (c) 2004, 2005, 2006,2007 The Princed Project Team + Copyright (c) 2004, 2005, 2006, 2007 The Princed Project Team Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation;