Added some Makefile options to build a packaging friendly executable

5 files changed, 56 insertions, 19 deletions

diff --git a/Makefile b/Makefile
index 7b2fc5e..8a5b397 100644
--- a/Makefile
+++ b/Makefile
@@ -47,6 +47,14 @@ endif #USE_GLES
 FONT:=nuklear_ui/font.o
 endif #Darwin
 
+ifdef HOST_ZLIB
+LIBS+= zlib
+LIBZOBJS=
+else
+LIBZOBJS=zlib/adler32.o zlib/compress.o zlib/crc32.o zlib/deflate.o zlib/gzclose.o zlib/gzlib.o zlib/gzread.o\
+	zlib/gzwrite.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/trees.o zlib/uncompr.o zlib/zutil.o
+endif
+
 ifeq ($(OS),Darwin)
 #This should really be based on whether or not the C compiler is clang rather than based on the OS
 CFLAGS+= -Wno-logical-op-parentheses
@@ -156,8 +164,6 @@ AUDIOOBJS=ym2612.o psg.o wave.o
 CONFIGOBJS=config.o tern.o util.o paths.o 
 NUKLEAROBJS=$(FONT) nuklear_ui/blastem_nuklear.o nuklear_ui/sfnt.o controller_info.o
 RENDEROBJS=render_sdl.o ppm.o
-LIBZOBJS=zlib/adler32.o zlib/compress.o zlib/crc32.o zlib/deflate.o zlib/gzclose.o zlib/gzlib.o zlib/gzread.o\
-	zlib/gzwrite.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/trees.o zlib/uncompr.o zlib/zutil.o
 	
 ifdef NOZLIB
 CFLAGS+= -DDISABLE_ZLIB
@@ -202,6 +208,14 @@ ifeq ($(OS),Windows)
 MAINOBJS+= res.o
 endif
 
+ifdef CONFIG_PATH
+CFLAGS+= -DCONFIG_PATH='"'$(CONFIG_PATH)'"'
+endif
+
+ifdef DATA_PATH
+CFLAGS+= -DDATA_PATH='"'$(DATA_PATH)'"'
+endif
+
 ALL=dis$(EXE) zdis$(EXE) stateview$(EXE) vgmplay$(EXE) blastem$(EXE)
 ifneq ($(OS),Windows)
 ALL+= termhelper
diff --git a/config.c b/config.c
index 10238b8..351bff7 100644
--- a/config.c
+++ b/config.c
@@ -205,14 +205,24 @@ uint8_t serialize_config_file(tern_node *config, char *path)
 
 tern_node *parse_bundled_config(char *config_name)
 {
+	tern_node *ret = NULL;
+#ifdef CONFIG_PATH
+	if (!strcmp("default.cfg", config_name) || !strcmp("blastem.cfg", config_name)) {
+		char *confpath = path_append(CONFIG_PATH, config_name);
+		ret = parse_config_file(confpath);
+		free(confpath);
+	} else {
+#endif
 	uint32_t confsize;
 	char *confdata = read_bundled_file(config_name, &confsize);
-	tern_node *ret = NULL;
 	if (confdata) {
 		confdata[confsize] = 0;
 		ret = parse_config(confdata);
 		free(confdata);
 	}
+#ifdef CONFIG_PATH
+	}
+#endif
 	return ret;
 }
 
diff --git a/nuklear_ui/blastem_nuklear.c b/nuklear_ui/blastem_nuklear.c
index d35c184..b2b9fe9 100644
--- a/nuklear_ui/blastem_nuklear.c
+++ b/nuklear_ui/blastem_nuklear.c
@@ -1512,7 +1512,11 @@ shader_prog *get_shader_list(uint32_t *num_out)
 		progs = NULL;
 		prog_storage = 0;
 	}
+#ifdef DATA_PATH
+	shader_dir = path_append(DATA_PATH, "shaders");
+#else
 	shader_dir = path_append(get_exe_dir(), "shaders");
+#endif
 	entries = get_dir_list(shader_dir, &num_entries);
 	progs = get_shader_progs(entries, num_entries, progs, &num_progs, &prog_storage);
 	*num_out = num_progs;
diff --git a/render_sdl.c b/render_sdl.c
index 62bac8f..2f5bfcd 100755
--- a/render_sdl.c
+++ b/render_sdl.c
@@ -13,6 +13,7 @@
 #include "genesis.h"
 #include "bindings.h"
 #include "util.h"
+#include "paths.h"
 #include "ppm.h"
 #include "png.h"
 #include "config.h"
@@ -489,24 +490,28 @@ static GLuint load_shader(char * fname, GLenum shader_type)
 	char * shader_path = alloc_concat_m(3, parts);
 	FILE * f = fopen(shader_path, "rb");
 	free(shader_path);
-	if (!f) {
-		parts[0] = get_exe_dir();
-		parts[1] = "/shaders/";
-		shader_path = alloc_concat_m(3, parts);
-		f = fopen(shader_path, "rb");
+	GLchar * text;
+	long fsize;
+	if (f) {
+		fsize = file_size(f);
+		text = malloc(fsize);
+		if (fread(text, 1, fsize, f) != fsize) {
+			warning("Error reading from shader file %s\n", fname);
+			free(text);
+			return 0;
+		}
+	} else {
+		shader_path = path_append("shaders", fname);
+		uint32_t fsize32;
+		text = read_bundled_file(shader_path, &fsize32);
 		free(shader_path);
-		if (!f) {
+		if (!text) {
 			warning("Failed to open shader file %s for reading\n", fname);
 			return 0;
 		}
+		fsize = fsize32;
 	}
-	long fsize = file_size(f);
-	GLchar * text = malloc(fsize);
-	if (fread(text, 1, fsize, f) != fsize) {
-		warning("Error reading from shader file %s\n", fname);
-		free(text);
-		return 0;
-	}
+	
 	if (strncmp(text, "#version", strlen("#version"))) {
 		GLchar *tmp = text;
 		text = alloc_concat(shader_prefix, tmp);
diff --git a/util.c b/util.c
index e54e8ea..50f79ee 100644
--- a/util.c
+++ b/util.c
@@ -875,14 +875,18 @@ char const *get_userdata_dir()
 
 char *read_bundled_file(char *name, uint32_t *sizeret)
 {
-	char *exe_dir = get_exe_dir();
-	if (!exe_dir) {
+#ifdef DATA_PATH
+	char *data_dir = DATA_PATH;
+#else
+	char *data_dir = get_exe_dir();
+	if (!data_dir) {
 		if (sizeret) {
 			*sizeret = -1;
 		}
 		return NULL;
 	}
-	char const *pieces[] = {exe_dir, PATH_SEP, name};
+#endif
+	char const *pieces[] = {data_dir, PATH_SEP, name};
 	char *path = alloc_concat_m(3, pieces);
 	FILE *f = fopen(path, "rb");
 	free(path);