From b0ec2e6d0719603212373bcdaaedd5b7b5e43121 Mon Sep 17 00:00:00 2001
From: retro-wertz <retro-wertz@users.noreply.github.com>
Date: Thu, 16 May 2019 09:56:54 +0800
Subject: [PATCH] Allow building without CHD, disable CHD for 3DS - all
 platforms compiles with CHD support. - compile with HAVE_CHD=0 for no chd
 support. - CHD fails building for 3DS, not sure its even fast enough for the
 device. I tried asking in discord channel but haven't got reply. Disabling it
 till someone familiar with 3ds can fix it. http://p.0bl.net/123458

---
 Makefile             |  4 +++-
 Makefile.libretro    |  3 ++-
 libpcsxcore/cdriso.c | 15 ++++++++++++++-
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 98498c87..5732c14a 100644
--- a/Makefile
+++ b/Makefile
@@ -159,6 +159,7 @@ endif
 OBJS += plugins/cdrcimg/cdrcimg.o
 
 # libchdr
+ifeq "$(HAVE_CHD)" "1"
 CFLAGS += -Ideps/libchdr
 OBJS += deps/crypto/md5.o
 OBJS += deps/crypto/sha1.o
@@ -208,8 +209,9 @@ else
 endif
 
 CFLAGS += -Ideps/crypto -Ideps/flac-1.3.2/include -Ideps/flac-1.3.2/src/libFLAC/include -Ideps/flac-1.3.2/src/libFLAC/include -Ideps/lzma-16.04/C
-CFLAGS += -D'PACKAGE_VERSION="1.3.2"' -DFLAC__HAS_OGG=0 -DFLAC__NO_DLL -DHAVE_LROUND -DHAVE_STDINT_H -DHAVE_STDLIB_H -DFLAC__NO_DLL -D_7ZIP_ST
+CFLAGS += -DHAVE_CHD -D'PACKAGE_VERSION="1.3.2"' -DFLAC__HAS_OGG=0 -DFLAC__NO_DLL -DHAVE_LROUND -DHAVE_STDINT_H -DHAVE_STDLIB_H -DFLAC__NO_DLL -D_7ZIP_ST
 LDFLAGS += -lm
+endif
 
 # dfinput
 OBJS += plugins/dfinput/main.o plugins/dfinput/pad.o plugins/dfinput/guncon.o
diff --git a/Makefile.libretro b/Makefile.libretro
index 5d380b65..f58f2844 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -2,6 +2,7 @@
 
 DEBUG ?= 0
 WANT_ZLIB ?= 1
+HAVE_CHD ?= 1
 
 ifeq ($(platform),)
 	platform = unix
@@ -188,7 +189,7 @@ else ifeq ($(platform), ctr)
 	DRC_CACHE_BASE = 0
 	ARCH = arm
 	HAVE_NEON = 0
-
+	HAVE_CHD = 0
 	STATIC_LINKING = 1
 
 # Xbox 360
diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c
index 7007f551..975105ed 100644
--- a/libpcsxcore/cdriso.c
+++ b/libpcsxcore/cdriso.c
@@ -27,7 +27,9 @@
 
 #include <errno.h>
 #include <zlib.h>
+#ifdef HAVE_CHD
 #include <chd.h>
+#endif
 
 #ifdef _WIN32
 #define WIN32_LEAN_AND_MEAN
@@ -94,6 +96,7 @@ static struct {
 	unsigned int sector_in_blk;
 } *compr_img;
 
+#ifdef HAVE_CHD
 static struct {
 	unsigned char (*buffer)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE];
 	chd_file* chd;
@@ -102,6 +105,7 @@ static struct {
 	unsigned int current_hunk;
 	unsigned int sector_in_hunk;
 } *chd_img;
+#endif
 
 int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector);
 
@@ -1039,6 +1043,7 @@ fail_io:
 	return -1;
 }
 
+#ifdef HAVE_CHD
 static int handlechd(const char *isofile) {
 	chd_img = calloc(1, sizeof(*chd_img));
 	if (chd_img == NULL)
@@ -1110,6 +1115,7 @@ fail_io:
 	}
 	return -1;
 }
+#endif
 
 // this function tries to get the .sub file of the given .img
 static int opensubfile(const char *isoname) {
@@ -1272,6 +1278,7 @@ finish:
 	return CD_FRAMESIZE_RAW;
 }
 
+#ifdef HAVE_CHD
 static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector)
 {
 	int hunk;
@@ -1295,7 +1302,7 @@ finish:
 			CD_FRAMESIZE_RAW);
 	return CD_FRAMESIZE_RAW;
 }
-
+#endif
 static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector)
 {
 	int ret;
@@ -1315,9 +1322,11 @@ static unsigned char * CALLBACK ISOgetBuffer_compr(void) {
 	return compr_img->buff_raw[compr_img->sector_in_blk] + 12;
 }
 
+#ifdef HAVE_CHD
 static unsigned char * CALLBACK ISOgetBuffer_chd(void) {
 	return chd_img->buffer[chd_img->sector_in_hunk] + 12;
 }
+#endif
 
 static unsigned char * CALLBACK ISOgetBuffer(void) {
 	return cdbuffer + 12;
@@ -1386,11 +1395,13 @@ static long CALLBACK ISOopen(void) {
 		CDR_getBuffer = ISOgetBuffer_compr;
 		cdimg_read_func = cdread_compressed;
 	}
+#ifdef HAVE_CHD
 	else if (handlechd(GetIsoFile()) == 0) {
 		SysPrintf("[chd]");
 		CDR_getBuffer = ISOgetBuffer_chd;
 		cdimg_read_func = cdread_chd;
 	}
+#endif
 
 	if (!subChanMixed && opensubfile(GetIsoFile()) == 0) {
 		SysPrintf("[+sub]");
@@ -1479,12 +1490,14 @@ static long CALLBACK ISOclose(void) {
 		compr_img = NULL;
 	}
 
+#ifdef HAVE_CHD
 	if (chd_img != NULL) {
 		chd_close(chd_img->chd);
 		free(chd_img->buffer);
 		free(chd_img);
 		chd_img = NULL;
 	}
+#endif
 
 	for (i = 1; i <= numtracks; i++) {
 		if (ti[i].handle != NULL) {
-- 
2.39.2