mirror of
https://github.com/WerWolv/ImHex-Patterns.git
synced 2026-03-27 23:37:04 -05:00
c533017d0b
* repo-wide: trim trailing spaces Note: This doesn't touch the .tbl files in encodings/ since they include meaningful trailing spaces (`20= `) * patterns: clean up duplicate semicolons * ELF: add header magic check * glTF: use type::Magic for magic value * glTF: check that the file size in the header matches * xgstexture: fix generics syntax for magic value * JPEG: define hex enum with 0x00 instead of 0X00 * CI: update deprecated actions --------- Co-authored-by: Nik <werwolv98@gmail.com>
123 lines
2.5 KiB
Rust
123 lines
2.5 KiB
Rust
#pragma author applecuckoo
|
|
#pragma description Google WebP
|
|
|
|
#pragma endian little
|
|
#pragma MIME image/webp
|
|
|
|
// based off of ttf.hexpat by Rebuild and wav.hexpat by WerWolv
|
|
|
|
import std.mem;
|
|
import std.core;
|
|
import type.magic;
|
|
|
|
struct RiffHeader {
|
|
char ckID[4] [[comment("Container Signature"), name("RIFF Header Signature")]];
|
|
u32 ckSize [[comment("Size of RIFF Header"), name("RIFF Chunk Size")]];
|
|
char format[4] [[comment("RIFF format"), name("WAVE Header Signature")]];
|
|
};
|
|
|
|
struct WebPChunk {
|
|
char chunkId[4];
|
|
u32 chunkSize;
|
|
};
|
|
|
|
bitfield VP8XFlags {
|
|
padding : 1;
|
|
A : 1;
|
|
X : 1;
|
|
E : 1;
|
|
L : 1;
|
|
I : 1;
|
|
padding : 2;
|
|
};
|
|
|
|
struct OneBase {
|
|
u24 value;
|
|
} [[sealed, format("format_onebase")]];
|
|
|
|
fn format_onebase(OneBase onebase) {
|
|
return onebase.value + 1;
|
|
};
|
|
|
|
struct WebPVP8XData {
|
|
VP8XFlags flags;
|
|
padding[3];
|
|
OneBase canvasWidth;
|
|
OneBase canvasHeight;
|
|
};
|
|
|
|
struct WebPANIMData {
|
|
u32 backgroundColor;
|
|
u16 loopCount;
|
|
};
|
|
|
|
bitfield ANMFFlags {
|
|
D : 1;
|
|
B : 1;
|
|
padding : 6;
|
|
};
|
|
|
|
bitfield WebPVP8LHeader {
|
|
widthMinusOne : 14;
|
|
heightMinusOne : 14;
|
|
alphaUsed : 1;
|
|
version : 3;
|
|
};
|
|
|
|
struct WebPVP8LData {
|
|
type::Magic<"\x2f"> id;
|
|
WebPVP8LHeader header;
|
|
};
|
|
|
|
u32 frameSize;
|
|
|
|
struct WebPANMFData {
|
|
u24 frameX;
|
|
u24 frameY;
|
|
OneBase frameWidth;
|
|
OneBase frameHeight;
|
|
u24 frameDuration;
|
|
ANMFFlags flags;
|
|
u8 data[parent.chunkHeader.chunkSize - 16]; // lazy fix - can't be bothered implementing subchunks
|
|
|
|
};
|
|
|
|
bitfield ALPHFlags {
|
|
C : 2;
|
|
F : 2;
|
|
P : 2;
|
|
padding : 2;
|
|
};
|
|
|
|
u32 paddedChunkSize;
|
|
|
|
struct WebPData {
|
|
WebPChunk chunkHeader;
|
|
paddedChunkSize = (chunkHeader.chunkSize + 1) >> 1 << 1;
|
|
match (chunkHeader.chunkId) {
|
|
("VP8X"): WebPVP8XData VP8XData;
|
|
("ANIM"): WebPANIMData ANIMData;
|
|
("ANMF"): {
|
|
WebPANMFData ANMFData;
|
|
padding[paddedChunkSize - sizeof(ANMFData)];
|
|
}
|
|
("VP8L"): {
|
|
WebPVP8LHeader VP8LData;
|
|
u8 image[chunkHeader.chunkSize-3];
|
|
padding[paddedChunkSize - sizeof(VP8LData) - sizeof(image)];
|
|
}
|
|
("ALPH"): {
|
|
ALPHFlags flags;
|
|
u8 ALPHData[chunkHeader.chunkSize-1];
|
|
padding[paddedChunkSize - sizeof(ALPHData) - sizeof(flags)];
|
|
}
|
|
(_): {
|
|
u8 data[chunkHeader.chunkSize];
|
|
padding[paddedChunkSize - sizeof(data)];
|
|
}
|
|
}
|
|
} [[name(std::format("Chunk ({})", chunkHeader.chunkId))]];
|
|
|
|
RiffHeader header @0x00;
|
|
WebPData data[while (!std::mem::eof())] @ $;
|