:: commit a740e84d15dca56ef209d7a55de73d748cc60f8d

mintsuki <mintsuki@protonmail.com> — 2023-05-03 17:36

parents: 5dce921e25

Revert "misc: Revert back to using tinf for all GZ decompression"

This reverts commit 3438b8d235be38850cee46d1950edcebf5ffcd41.
diff --git a/README.md b/README.md
index 827cbde4..28a9e349 100644
--- a/README.md
+++ b/README.md
@@ -229,9 +229,9 @@ An example `limine.cfg` file can be found in [`test/limine.cfg`](https://github.
 More info on the format of `limine.cfg` can be found in [`CONFIG.md`](https://github.com/limine-bootloader/limine/blob/trunk/CONFIG.md).
 
 ## Acknowledgments
-Limine uses a stripped-down version of [tinf](https://github.com/jibsen/tinf) for GZIP decompression.
+Limine uses a stripped-down version of [tinf](https://github.com/jibsen/tinf) for early GZIP decompression.
 
-Limine relies on [stb_image](https://github.com/nothings/stb/blob/master/stb_image.h) for wallpaper image loading.
+Limine relies on [stb_image](https://github.com/nothings/stb/blob/master/stb_image.h) for runtime GZIP decompression and image loading.
 
 ## Discord server
 We have a [Discord server](https://discord.gg/QEeZMz4) if you need support,
diff --git a/common/GNUmakefile b/common/GNUmakefile
index 3f4f3ac8..f1ffbe16 100644
--- a/common/GNUmakefile
+++ b/common/GNUmakefile
@@ -60,7 +60,6 @@ override CFLAGS_FOR_TARGET += \
 
 override CPPFLAGS_FOR_TARGET := \
     -I../freestanding-headers \
-    -I'$(call SHESCAPE,$(BUILDDIR))/tinf' \
     -I'$(call SHESCAPE,$(BUILDDIR))/..' \
     -I. \
     $(CPPFLAGS_FOR_TARGET) \
@@ -212,20 +211,6 @@ else ifeq ($(TARGET),uefi-aarch64)
 all: $(call MKESCAPE,$(BUILDDIR))/BOOTAA64.EFI
 endif
 
-$(call MKESCAPE,$(BUILDDIR))/tinf-copied: ../tinf/*
-	rm -rf '$(call SHESCAPE,$(BUILDDIR))/tinf'
-	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
-	cp -r ../tinf '$(call SHESCAPE,$(BUILDDIR))/'
-	touch '$(call SHESCAPE,$(BUILDDIR))/tinf-copied'
-
-$(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
-	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'
-
-$(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
-	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'
-
 ifeq ($(TARGET),bios)
 
 $(call MKESCAPE,$(BUILDDIR))/stage2.bin.gz: $(call MKESCAPE,$(BUILDDIR))/stage2.bin
@@ -263,7 +248,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker_nos2map.ld: linker_bios.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef -DLINKER_NOMAP -DLINKER_NOS2MAP linker_bios.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker_nos2map.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker_nos2map.ld'
 	$(LD_FOR_TARGET) '$(call OBJESCAPE,$^)' $(LDFLAGS_FOR_TARGET) -T'$(call SHESCAPE,$(BUILDDIR))/linker_nos2map.ld' -o '$(call SHESCAPE,$@)'
 	$(OBJCOPY_FOR_TARGET) -O binary --only-section=.note.gnu.build-id '$(call SHESCAPE,$@)' '$(call SHESCAPE,$(BUILDDIR))/build-id.s2.bin'
@@ -278,7 +263,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker_nomap.ld: linker_bios.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef -DLINKER_NOMAP linker_bios.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine_nos3map.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/stage2.map.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine_nos3map.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/stage2.map.o
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 	$(LD_FOR_TARGET) '$(call OBJESCAPE,$^)' $(LDFLAGS_FOR_TARGET) -T'$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld' -o '$(call SHESCAPE,$@)'
 	$(OBJCOPY_FOR_TARGET) -O binary --only-section=.note.gnu.build-id '$(call SHESCAPE,$@)' '$(call SHESCAPE,$(BUILDDIR))/build-id.s2.bin'
@@ -293,7 +278,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker.ld: linker_bios.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef linker_bios.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/stage2.map.o $(call MKESCAPE,$(BUILDDIR))/full.map.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/stage2.map.o $(call MKESCAPE,$(BUILDDIR))/full.map.o
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 	$(LD_FOR_TARGET) '$(call OBJESCAPE,$^)' $(LDFLAGS_FOR_TARGET) -T'$(call SHESCAPE,$(BUILDDIR))/linker.ld' -o '$(call SHESCAPE,$@)'
 	$(OBJCOPY_FOR_TARGET) -O binary --only-section=.note.gnu.build-id '$(call SHESCAPE,$@)' '$(call SHESCAPE,$(BUILDDIR))/build-id.s2.bin'
@@ -332,7 +317,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker_nomap.ld: linker_uefi_x86_64.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef -DLINKER_NOMAP linker_uefi_x86_64.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-x86_64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_x86_64.o $(OBJ) ../libgcc-binaries/libgcc-x86_64-no-red-zone.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-x86_64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_x86_64.o $(OBJ) ../libgcc-binaries/libgcc-x86_64-no-red-zone.a
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld' \
@@ -342,7 +327,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker.ld: linker_uefi_x86_64.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef linker_uefi_x86_64.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-x86_64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_x86_64.o $(OBJ) ../libgcc-binaries/libgcc-x86_64-no-red-zone.a $(call MKESCAPE,$(BUILDDIR))/full.map.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-x86_64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_x86_64.o $(OBJ) ../libgcc-binaries/libgcc-x86_64-no-red-zone.a $(call MKESCAPE,$(BUILDDIR))/full.map.o
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker.ld' \
@@ -372,7 +357,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker_nomap.ld: linker_uefi_aarch64.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef -DLINKER_NOMAP linker_uefi_aarch64.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-aarch64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_aarch64.o $(OBJ) ../libgcc-binaries/libgcc-aarch64.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-aarch64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_aarch64.o $(OBJ) ../libgcc-binaries/libgcc-aarch64.a
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld' \
@@ -382,7 +367,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker.ld: linker_uefi_aarch64.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef linker_uefi_aarch64.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-aarch64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_aarch64.o $(OBJ) ../libgcc-binaries/libgcc-aarch64.a $(call MKESCAPE,$(BUILDDIR))/full.map.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-aarch64.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_aarch64.o $(OBJ) ../libgcc-binaries/libgcc-aarch64.a $(call MKESCAPE,$(BUILDDIR))/full.map.o
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker.ld' \
@@ -411,7 +396,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker_nomap.ld: linker_uefi_ia32.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef -DLINKER_NOMAP linker_uefi_ia32.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-ia32.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_ia32.o $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine_nomap.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-ia32.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_ia32.o $(OBJ) ../libgcc-binaries/libgcc-i686.a
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker_nomap.ld' \
@@ -421,7 +406,7 @@ $(call MKESCAPE,$(BUILDDIR))/linker.ld: linker_uefi_ia32.ld.in
 	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
 	$(CC_FOR_TARGET) -x c -E -P -undef linker_uefi_ia32.ld.in -o '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 
-$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-ia32.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_ia32.o $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/full.map.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/limine.elf: $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/crt0-efi-ia32.o $(call MKESCAPE,$(BUILDDIR))/limine-efi/gnuefi/reloc_ia32.o $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/full.map.o
 	$(MAKE) '$(call SHESCAPE,$(BUILDDIR))/linker.ld'
 	$(LD_FOR_TARGET) \
 		-T'$(call SHESCAPE,$(BUILDDIR))/linker.ld' \
@@ -432,25 +417,25 @@ endif
 -include $(HEADER_DEPS)
 
 ifeq ($(TARGET),uefi-x86-64)
-$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied $(call MKESCAPE,$(BUILDDIR))/limine-efi
+$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/limine-efi
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
 	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
 endif
 
 ifeq ($(TARGET),uefi-aarch64)
-$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied $(call MKESCAPE,$(BUILDDIR))/limine-efi
+$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/limine-efi
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
 	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
 endif
 
 ifeq ($(TARGET),uefi-ia32)
-$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied $(call MKESCAPE,$(BUILDDIR))/limine-efi
+$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/limine-efi
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
 	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
 endif
 
 ifeq ($(TARGET),bios)
-$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied
+$(call MKESCAPE,$(BUILDDIR))/%.o: %.c
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
 	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
 endif
diff --git a/common/compress/gzip.c b/common/compress/gzip.c
new file mode 100644
index 00000000..93703611
--- /dev/null
+++ b/common/compress/gzip.c
@@ -0,0 +1,136 @@
+/*
+ * originally from tinfgzip - tiny gzip decompressor
+ *
+ * Copyright (c) 2003-2019 Joergen Ibsen
+ * Copyright (c) 2023 mintsuki and contributors to the Limine project
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1. The origin of this software must not be misrepresented; you must
+ *      not claim that you wrote the original software. If you use this
+ *      software in a product, an acknowledgment in the product
+ *      documentation would be appreciated but is not required.
+ *
+ *   2. Altered source versions must be plainly marked as such, and must
+ *      not be misrepresented as being the original software.
+ *
+ *   3. This notice may not be removed or altered from any source
+ *      distribution.
+ */
+
+#include <stdint.h>
+#include <stb/stb_image.h>
+
+typedef enum {
+    FTEXT    = 1,
+    FHCRC    = 2,
+    FEXTRA   = 4,
+    FNAME    = 8,
+    FCOMMENT = 16
+} gzip_flag;
+
+void *gzip_uncompress(const void *source, uint64_t sourceLen, uint64_t *outsize) {
+    const uint8_t *src = (const uint8_t *) source;
+    const uint8_t *start;
+    int res;
+    uint8_t flg;
+
+    /* -- Check header -- */
+
+    /* Check room for at least 10 byte header and 8 byte trailer */
+    if (sourceLen < 18) {
+        return NULL;
+    }
+
+    /* Check id bytes */
+    if (src[0] != 0x1F || src[1] != 0x8B) {
+        return NULL;
+    }
+
+    /* Check method is deflate */
+    if (src[2] != 8) {
+        return NULL;
+    }
+
+    /* Get flag byte */
+    flg = src[3];
+
+    /* Check that reserved bits are zero */
+    if (flg & 0xE0) {
+        return NULL;
+    }
+
+    /* -- Find start of compressed data -- */
+
+    /* Skip base header of 10 bytes */
+    start = src + 10;
+
+    /* Skip extra data if present */
+    if (flg & FEXTRA) {
+        uint64_t xlen = *((uint16_t *)start);
+
+        if (xlen > sourceLen - 12) {
+            return NULL;
+        }
+
+        start += xlen + 2;
+    }
+
+    /* Skip file name if present */
+    if (flg & FNAME) {
+        do {
+            if (((uint64_t)(start - src)) >= sourceLen) {
+                return NULL;
+            }
+        } while (*start++);
+    }
+
+    /* Skip file comment if present */
+    if (flg & FCOMMENT) {
+        do {
+            if (((uint64_t)(start - src)) >= sourceLen) {
+                return NULL;
+            }
+        } while (*start++);
+    }
+
+    if (flg & FHCRC) {
+        start += 2;
+    }
+
+    /* -- Get decompressed length -- */
+
+    uint32_t dlen = *((uint32_t *)&src[sourceLen - 4]);
+
+    /* -- Decompress data -- */
+
+    if ((src + sourceLen) - start < 8) {
+        return NULL;
+    }
+
+    void *buf = ext_mem_alloc(dlen);
+
+    // XXX for some reason certain GZ files made by macOS do not properly decompress with stb_image
+    //     unless some skew (19 bytes?) is applied to the buffer. I have no idea why this is the
+    //     case but I'd rather have them load somewhat than not load at all.
+    for (uint64_t skew = 0; skew < 32; skew++) {
+        res = stbi_zlib_decode_noheader_buffer(buf, dlen, (const char *)start + skew, (src + sourceLen) - start - 8 - skew);
+        if (res != -1) {
+            break;
+        }
+    }
+
+    if (res == -1) {
+        pmm_free(buf, dlen);
+        return NULL;
+    }
+
+    *outsize = (uint64_t)dlen;
+    return buf;
+}
diff --git a/common/compress/gzip.h b/common/compress/gzip.h
new file mode 100644
index 00000000..ce9e6a24
--- /dev/null
+++ b/common/compress/gzip.h
@@ -0,0 +1,8 @@
+#ifndef __COMPRESS__GZIP_H__
+#define __COMPRESS__GZIP_H__
+
+#include <stdint.h>
+
+void *gzip_uncompress(const void *source, uint64_t sourceLen, uint64_t *outsize);
+
+#endif
diff --git a/common/lib/uri.c b/common/lib/uri.c
index f9227dba..a4eed0b5 100644
--- a/common/lib/uri.c
+++ b/common/lib/uri.c
@@ -8,7 +8,7 @@
 #include <mm/pmm.h>
 #include <lib/print.h>
 #include <pxe/tftp.h>
-#include <tinf.h>
+#include <compress/gzip.h>
 #include <menu.h>
 #include <lib/readline.h>
 #include <crypt/blake2b.h>
@@ -273,8 +273,8 @@ struct file_handle *uri_open(char *uri) {
     if (compressed && ret != NULL) {
         struct file_handle *compressed_fd = ext_mem_alloc(sizeof(struct file_handle));
         void *src = freadall(ret, MEMMAP_BOOTLOADER_RECLAIMABLE);
-        if (tinf_gzip_uncompress(compressed_fd->fd, src, ret->size)) {
-            panic(true, "tinf error");
+        if ((compressed_fd->fd = gzip_uncompress(src, ret->size, &compressed_fd->size)) == NULL) {
+            panic(true, "GZip error");
         }
         compressed_fd->vol = ret->vol;
         compressed_fd->path = ext_mem_alloc(ret->path_len);
diff --git a/common/stb_image.patch b/common/stb_image.patch
index 23faf05b..b88af848 100644
--- a/common/stb_image.patch
+++ b/common/stb_image.patch
@@ -1,6 +1,6 @@
 --- common/stb/stb_image.h	2023-03-05 18:57:03.930649341 +0100
 +++ common/stb/stb_image.h	2023-03-05 18:55:53.767318782 +0100
-@@ -127,6 +127,52 @@
+@@ -127,6 +127,54 @@
  #ifndef STBI_INCLUDE_STB_IMAGE_H
  #define STBI_INCLUDE_STB_IMAGE_H
  
@@ -46,6 +46,8 @@
 +#define STBI_NO_SIMD
 +#define STBI_NO_LINEAR
 +
++#define STBI_ONLY_ZLIB
++#define STBI_SUPPORT_ZLIB
 +#define STBI_ONLY_JPEG
 +#define STBI_ONLY_PNG
 +#define STBI_ONLY_BMP
diff --git a/decompressor/GNUmakefile b/decompressor/GNUmakefile
index 01362841..071aca08 100644
--- a/decompressor/GNUmakefile
+++ b/decompressor/GNUmakefile
@@ -43,7 +43,7 @@ override CFLAGS_FOR_TARGET += \
 
 override CPPFLAGS_FOR_TARGET := \
     -I../freestanding-headers \
-    -I'$(call SHESCAPE,$(BUILDDIR))/tinf' \
+    -I./tinf \
     -I. \
     $(CPPFLAGS_FOR_TARGET) \
     -MMD \
@@ -68,27 +68,13 @@ override HEADER_DEPS := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(C_FILES:.c=
 .PHONY: all
 all: $(call MKESCAPE,$(BUILDDIR))/decompressor.bin
 
-$(call MKESCAPE,$(BUILDDIR))/decompressor.bin: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
+$(call MKESCAPE,$(BUILDDIR))/decompressor.bin: $(OBJ) ../libgcc-binaries/libgcc-i686.a
 	$(LD_FOR_TARGET) '$(call OBJESCAPE,$^)' $(LDFLAGS_FOR_TARGET) -o '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf'
 	$(OBJCOPY_FOR_TARGET) -O binary '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf' '$(call SHESCAPE,$@)'
 
-$(call MKESCAPE,$(BUILDDIR))/tinf-copied: ../tinf/*
-	rm -rf '$(call SHESCAPE,$(BUILDDIR))/tinf'
-	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
-	cp -r ../tinf '$(call SHESCAPE,$(BUILDDIR))/'
-	touch '$(call SHESCAPE,$(BUILDDIR))/tinf-copied'
-
-$(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
-	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'
-
-$(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
-	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'
-
 -include $(HEADER_DEPS)
 
-$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied
+$(call MKESCAPE,$(BUILDDIR))/%.o: %.c
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
 	$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
 
diff --git a/tinf/tinf.h b/decompressor/tinf/tinf.h
similarity index 100%
rename from tinf/tinf.h
rename to decompressor/tinf/tinf.h
diff --git a/tinf/tinfgzip.c b/decompressor/tinf/tinfgzip.c
similarity index 100%
rename from tinf/tinfgzip.c
rename to decompressor/tinf/tinfgzip.c
diff --git a/tinf/tinflate.c b/decompressor/tinf/tinflate.c
similarity index 100%
rename from tinf/tinflate.c
rename to decompressor/tinf/tinflate.c
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