imports/ImHex-Patterns
1
0
Fork 0
mirror of https://github.com/WerWolv/ImHex-Patterns.git synced 2026-03-27 23:37:04 -05:00
Code Issues Packages Projects Releases Wiki Activity

patterns: put author and description inside each pattern (#155)

Browse Source
This commit is contained in:
iTrooz
2023-08-28 12:32:23 +02:00
committed by GitHub
parent ba14dd0cb2
commit b6e0557a1d
84 changed files with 3692 additions and 3482 deletions
Download Patch File Download Diff File Expand all files Collapse all files

245
patterns/jpeg.hexpat
View File

@@ -1,122 +1,125 @@
#include <std/mem.pat>
#pragma endian big
#pragma MIME image/jpeg
enum Marker : u8 {
TEM = 0x01,
SOF0 = 0xC0,
SOF1 = 0xC1,
SOF2 = 0xC2,
SOF3 = 0xC3,
DHT = 0xC4,
SOF5 = 0xC5,
SOF6 = 0xC6,
SOF7 = 0xC7,
SOI = 0xD8,
EOI = 0xD9,
SOS = 0xDA,
DQT = 0xDB,
DNL = 0xDC,
DRI = 0xDD,
DHP = 0xDE,
APP0 = 0xE0,
APP1 = 0xE1,
APP2 = 0xE2,
APP3 = 0xE3,
APP4 = 0xE4,
APP5 = 0xE5,
APP6 = 0xE6,
APP7 = 0xE7,
APP8 = 0xE8,
APP9 = 0xE9,
APP10 = 0xEA,
APP11 = 0xEB,
APP12 = 0xEC,
APP13 = 0xED,
APP14 = 0xEE,
APP15 = 0xEF,
COM = 0xFE
};
enum DensityUnit : u8 {
NoUnit = 0x00,
PixelsPerInch = 0x01,
PixelsPerCm = 0x02
};
struct Pixel {
u8 r, g, b;
} [[sealed, transform("transform_pixel")]];
fn transform_pixel(Pixel pixel) {
return (0xFF << 24) | (pixel.b << 16) | (pixel.g << 8) | (pixel.r << 0);
};
struct APP0 {
char magic[5];
u8 versionMajor, versionMinor;
DensityUnit densityUnit;
u16 densityX, densityY;
u8 thumbnailX, thumbnailY;
Pixel thumbnail[thumbnailX * thumbnailY] [[sealed]];
};
enum ComponentId : u8 {
Y = 1,
CB = 2,
CR = 3,
I = 4,
Q = 5
};
struct SOF0Component {
ComponentId componentId;
u8 samplingFactors;
u8 quantizationTableId;
};
struct SOF0 {
u8 bitsPerSample;
u16 imageHeight, imageWidth;
u8 numComponents;
SOF0Component components[numComponents];
};
struct SOSComponent {
ComponentId componentId;
u8 huffmanTable;
};
struct SOS {
u8 numComponents;
SOSComponent components[numComponents];
u8 startSpectralSelection;
u8 endSpectral;
u8 apprBitPos;
u8 image_data[while(!std::mem::eof())] [[sealed]];
};
struct Segment {
u8 magic;
Marker marker;
if (marker == Marker::SOI || marker == Marker::EOI) {
} else {
u16 length;
if (marker == Marker::APP0) {
APP0 data;
} else if (marker == Marker::SOF0) {
SOF0 data;
} else if (marker == Marker::SOS) {
SOS data;
} else {
u8 data[length - sizeof(length)] [[sealed]];
}
}
};
#pragma author WerWolv
#pragma description JPEG Image Format
#include <std/mem.pat>
#pragma endian big
#pragma MIME image/jpeg
enum Marker : u8 {
TEM = 0x01,
SOF0 = 0xC0,
SOF1 = 0xC1,
SOF2 = 0xC2,
SOF3 = 0xC3,
DHT = 0xC4,
SOF5 = 0xC5,
SOF6 = 0xC6,
SOF7 = 0xC7,
SOI = 0xD8,
EOI = 0xD9,
SOS = 0xDA,
DQT = 0xDB,
DNL = 0xDC,
DRI = 0xDD,
DHP = 0xDE,
APP0 = 0xE0,
APP1 = 0xE1,
APP2 = 0xE2,
APP3 = 0xE3,
APP4 = 0xE4,
APP5 = 0xE5,
APP6 = 0xE6,
APP7 = 0xE7,
APP8 = 0xE8,
APP9 = 0xE9,
APP10 = 0xEA,
APP11 = 0xEB,
APP12 = 0xEC,
APP13 = 0xED,
APP14 = 0xEE,
APP15 = 0xEF,
COM = 0xFE
};
enum DensityUnit : u8 {
NoUnit = 0x00,
PixelsPerInch = 0x01,
PixelsPerCm = 0x02
};
struct Pixel {
u8 r, g, b;
} [[sealed, transform("transform_pixel")]];
fn transform_pixel(Pixel pixel) {
return (0xFF << 24) | (pixel.b << 16) | (pixel.g << 8) | (pixel.r << 0);
};
struct APP0 {
char magic[5];
u8 versionMajor, versionMinor;
DensityUnit densityUnit;
u16 densityX, densityY;
u8 thumbnailX, thumbnailY;
Pixel thumbnail[thumbnailX * thumbnailY] [[sealed]];
};
enum ComponentId : u8 {
Y = 1,
CB = 2,
CR = 3,
I = 4,
Q = 5
};
struct SOF0Component {
ComponentId componentId;
u8 samplingFactors;
u8 quantizationTableId;
};
struct SOF0 {
u8 bitsPerSample;
u16 imageHeight, imageWidth;
u8 numComponents;
SOF0Component components[numComponents];
};
struct SOSComponent {
ComponentId componentId;
u8 huffmanTable;
};
struct SOS {
u8 numComponents;
SOSComponent components[numComponents];
u8 startSpectralSelection;
u8 endSpectral;
u8 apprBitPos;
u8 image_data[while(!std::mem::eof())] [[sealed]];
};
struct Segment {
u8 magic;
Marker marker;
if (marker == Marker::SOI || marker == Marker::EOI) {
} else {
u16 length;
if (marker == Marker::APP0) {
APP0 data;
} else if (marker == Marker::SOF0) {
SOF0 data;
} else if (marker == Marker::SOS) {
SOS data;
} else {
u8 data[length - sizeof(length)] [[sealed]];
}
}
};
Segment segments[while(!std::mem::eof())] @ 0x00 [[hex::visualize("image", this)]];