Initial commit

1 files changed, 120 insertions, 0 deletions

diff --git a/config.c b/config.c
new file mode 100644
index 0000000..ba6041c
--- /dev/null
+++ b/config.c
@@ -0,0 +1,120 @@
+#include <stdlib.h>
+#include <string.h>
+#include "config.h"
+#include "main.h"
+#include "options.h"
+#include "scale.h"
+
+typedef enum {
+	CE_TYPE_STR = 0,
+	CE_TYPE_NUM = 4,
+} config_entry_type;
+
+#define CE_STR(val)	                                                  \
+	{ #val, CE_TYPE_STRING, val }
+
+#define CE_NUM(val)	                                                  \
+	{ #val, CE_TYPE_NUM, &val }
+
+static const struct {
+	const char *name;
+	config_entry_type type;
+	void *val;
+} config_data[] = {
+	CE_NUM(show_fps),
+	CE_NUM(limit_frames),
+	CE_NUM(audio_buffer_size),
+	CE_NUM(scale_size),
+	CE_NUM(scale_filter),
+};
+
+void config_write(FILE *f)
+{
+	for (int i = 0; i < array_size(config_data); i++) {
+		switch (config_data[i].type)
+		{
+		case CE_TYPE_STR:
+			fprintf(f, "%s = %s\n", config_data[i].name, (char *)config_data[i].val);
+			break;
+		case CE_TYPE_NUM:
+			fprintf(f, "%s = %u\n", config_data[i].name, *(uint32_t *)config_data[i].val);
+			break;
+		default:
+			PA_WARN("unhandled type %d for %s\n", config_data[i].type, (char *)config_data[i].val);
+			break;
+		}
+	}
+
+	for (int i = 0; i < core_options.len; i++) {
+		const char* k = options_get_key(i);
+		if (!options_is_blocked(k))
+			fprintf(f, "%s = %s\n", k, options_get_value(k));
+	}
+}
+
+static void parse_str_val(char *cval, const char *src)
+{
+	char *tmp;
+	strncpy(cval, src, 256);
+	cval[256 - 1] = 0;
+	tmp = strchr(cval, '\n');
+	if (tmp == NULL)
+		tmp = strchr(cval, '\r');
+	if (tmp != NULL)
+		*tmp = 0;
+}
+
+static void parse_num_val(uint32_t *cval, const char *src)
+{
+	char *tmp = NULL;
+	uint32_t val;
+	val = strtoul(src, &tmp, 10);
+	if (tmp == NULL || src == tmp)
+		return; // parse failed
+
+	*cval = val;
+}
+
+static char *config_find_value(const char* cfg, const char *key) {
+	char *tmp;
+
+	tmp = strstr(cfg, key);
+	if (tmp == NULL)
+		return NULL;
+	tmp += strlen(key);
+	if (strncmp(tmp, " = ", 3) != 0)
+		return NULL;
+	tmp += 3;
+
+	return tmp;
+}
+
+void config_read(const char* cfg)
+{
+	for (int i = 0; i < array_size(config_data); i++) {
+		char *tmp = config_find_value(cfg, config_data[i].name);
+		if (!tmp)
+			continue;
+
+		if (config_data[i].type == CE_TYPE_STR) {
+			parse_str_val(config_data[i].val, tmp);
+			continue;
+		}
+
+		parse_num_val(config_data[i].val, tmp);
+	}
+
+	for (int i = 0; i < core_options.len; i++) {
+		char value[256] = {0};
+		const char *key = options_get_key(i);
+		if (options_is_blocked(key))
+			continue;
+
+		char *tmp = config_find_value(cfg, key);
+		if (!tmp)
+			continue;
+
+		parse_str_val(value, tmp);
+		options_set_value(key, value);
+	}
+}