patterns/pif: Add PIF image pattern (#76)

* Added PIF pattern

* tests/patterns: Added test file for pif pattern

* Added pif pattern to list

* Delete pif.hexpat.pif

* patterns: Added pif image format pattern

README.md

@@ -69,6 +69,7 @@ Hex patterns, include patterns and magic files for the use with the ImHex Hex Ed
 | CCHVA | | [`patterns/cchva.hexpat`](patterns/cchva.hexpat) | Command and Conquer Voxel Animation |
 | CCVXL | | [`patterns/ccvxl.hexpat`](patterns/ccvxl.hexpat) | Command and Conquer Voxel Model |
 | CCPAL | | [`patterns/ccpal.hexpat`](patterns/ccpal.hexpat) | Command and Conquer Voxel Palette |
+| PIF | `image/pif` | [`patterns/pif.hexpat`](patterns/pif.hexpat) | PIF Image Format |
 
 ### Scripts
 

patterns/pif.hexpat

@@ -0,0 +1,76 @@
+/* PIF - Portable Image Format
+ *
+ * Basic decoder for the PIF file structure
+ * https://github.com/gfcwfzkm/PIF-Image-Format
+ */
+
+#pragma MIME image/pif
+#pragma endian little
+
+enum imageType_t : u16 {
+	RGB888 = 0x433C,
+	RGB565 = 0xE5C5,
+	RGB332 = 0x1E53,
+	RGB16C = 0xB895,
+	BLWH   = 0x7DAA,
+	IND24  = 0x4952,
+	IND16  = 0x4947,
+	IND8   = 0x4942
+};
+
+enum compression_t : u16 {
+	NO_COMPRESSION  = 0,
+	RLE_COMPRESSION = 0x7DDE
+};
+
+struct PIFFileHeader {
+	char  Signature[4];
+	u32 FileSize;
+	u32 ImageOffset;
+};
+
+struct PIFInfoHeader {
+	imageType_t ImageType;
+	u16 BitsPerPixel;
+	u16 ImageWidth;
+	u16 ImageHeight;
+	u32 ImageSize;
+	u16 ColorTableSize;
+	compression_t Compression;
+};
+
+struct PIF {
+	PIFFileHeader PIF_FileHeader;
+	PIFInfoHeader PIF_ImageHeader;
+
+	if (PIF_ImageHeader.ImageType == imageType_t::IND24)
+	{
+		u24 ColorTable[PIF_ImageHeader.ColorTableSize/3];
+	}
+	else if (PIF_ImageHeader.ImageType == imageType_t::IND16)
+	{
+		u16 ColorTable[PIF_ImageHeader.ColorTableSize/2];
+	}
+	else if (PIF_ImageHeader.ImageType == imageType_t::IND8)
+	{
+		u8 ColorTable[PIF_ImageHeader.ColorTableSize];
+	}
+
+	if ((PIF_ImageHeader.ImageType == imageType_t::RGB888) ||
+		(PIF_ImageHeader.ImageType == imageType_t::IND24))
+	{
+		u24 ImageData[(PIF_FileHeader.FileSize - PIF_FileHeader.ImageOffset)/3];
+	}
+	else if ((PIF_ImageHeader.ImageType == imageType_t::RGB565) ||
+			 (PIF_ImageHeader.ImageType == imageType_t::IND16))
+	{
+		u16 ImageData[(PIF_FileHeader.FileSize - PIF_FileHeader.ImageOffset)/2];
+	}
+	else if ((PIF_ImageHeader.ImageType == imageType_t::RGB332) ||
+			 (PIF_ImageHeader.ImageType == imageType_t::IND8))
+	{
+		u8 ImageData[(PIF_FileHeader.FileSize - PIF_FileHeader.ImageOffset)/1];
+	}
+};
+
+PIF pif @ 0x00;