From b792446cc927866093304463b81b9e29b8d653fc Mon Sep 17 00:00:00 2001
From: James Ketrenos <james_gitlab@ketrenos.com>
Date: Sat, 11 Jan 2020 17:25:36 -0800
Subject: [PATCH] Move from long double to flaot

Signed-off-by: James Ketrenos <james_gitlab@ketrenos.com>
---
 scanner/json2db.c | 18 +++++++++---------
 scanner/scanner.c |  7 +------
 2 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/scanner/json2db.c b/scanner/json2db.c
index 319182a..2d44e42 100644
--- a/scanner/json2db.c
+++ b/scanner/json2db.c
@@ -15,17 +15,17 @@
 #endif
 
 typedef struct Face {
-  long double descriptor[128];
+  float descriptor[128];
   long int clusterId;
   long faceId;
   long photoId;
-  double confidence;
-  double *distances;
+  float confidence;
+  float *distances;
 } Face;
 
 typedef struct FaceLink {
   struct FaceLink *pNext;
-  long double distance;
+  float distance;
   Face *pFace;
 } FaceLink;
 
@@ -56,7 +56,7 @@ Face *readFaceDescriptor(Face *pFace, long id, char *path) {
       break;
     }
     *p++ = 0;
-    sscanf(start, "%Lf", &pFace->descriptor[i]);
+    sscanf(start, "%f", &pFace->descriptor[i]);
   }
 
   if (i != 128) {
@@ -68,7 +68,7 @@ Face *readFaceDescriptor(Face *pFace, long id, char *path) {
   return pFace;
 }
 
-int insert_descriptors(sqlite3 *db, long int faceId, long double descriptor[128]) {
+int insert_descriptors(sqlite3 *db, long int faceId, float descriptor[128]) {
   char sql_buf[1024];
 	int rc;
 
@@ -82,7 +82,7 @@ int insert_descriptors(sqlite3 *db, long int faceId, long double descriptor[128]
 	}
 
 	// Bind a block of zeros the size of the file we're going to insert later
-	sqlite3_bind_zeroblob(insert_stmt, 1, sizeof(long double) * 128);
+	sqlite3_bind_zeroblob(insert_stmt, 1, sizeof(float) * 128);
 	if (SQLITE_DONE != (rc = sqlite3_step(insert_stmt))) {
 		fprintf(stderr, "Insert statement didn't work (%i): %s\n", rc, sqlite3_errmsg(db));
     return rc;
@@ -99,7 +99,7 @@ int insert_descriptors(sqlite3 *db, long int faceId, long double descriptor[128]
     return rc;
 	}
 
-  if(SQLITE_OK != (rc = sqlite3_blob_write(blob, descriptor, 128 * sizeof(*descriptor), 0))) {
+  if(SQLITE_OK != (rc = sqlite3_blob_write(blob, descriptor, 128 * sizeof(float), 0))) {
     fprintf(stderr, "Error writing to blob handle.\n");
     return rc;
   }
@@ -121,7 +121,7 @@ int main(int argc, char *argv[]) {
   long i;
   long entries = 0;
   long int minPts = MIN_PTS;
-  long double maxDistance = MAX_DISTANCE;
+  float maxDistance = MAX_DISTANCE;
   char sqlBuf[1024];
 
   if (argc == 1) {
diff --git a/scanner/scanner.c b/scanner/scanner.c
index 1c797ce..4cfb694 100644
--- a/scanner/scanner.c
+++ b/scanner/scanner.c
@@ -265,16 +265,11 @@ int parseFaceDescriptor(void *data, int argc, char **argv, char **column) {
     return rc;
 	}
 
-  long double vector[128];
-  if (SQLITE_OK != (rc = sqlite3_blob_read(blob, vector, sizeof(vector), 0))) {
+  if (SQLITE_OK != (rc = sqlite3_blob_read(blob, pFace->descriptor, sizeof(pFace->descriptor), 0))) {
     fprintf(stderr, "Error reading from blob handle.\n");
     return rc;
   }
 
-  for (int i = 0; i < 128; i++) {
-    pFace->descriptor[i] = vector[i];
-  }
-
 	sqlite3_blob_close(blob);
 
   return SQLITE_OK;