From 725ccf3c873fa320640e8961bb9cb1c70695b8fd Mon Sep 17 00:00:00 2001
From: tTh <tth@redlady.dinorama.fr>
Date: Fri, 16 Aug 2024 03:22:55 +0200
Subject: [PATCH] tweaking the speedtest

---
 Lib/.gitignore |  2 ++
 Lib/foo.c      | 24 +++++++++++++-----------
 tthimage.h     |  7 ++++++-
 3 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/Lib/.gitignore b/Lib/.gitignore
index 175a57e..ef7863c 100644
--- a/Lib/.gitignore
+++ b/Lib/.gitignore
@@ -1,4 +1,6 @@
 
 *.png
+*.gif
+
 cflow.txt
 
diff --git a/Lib/foo.c b/Lib/foo.c
index d7eebc4..29637e8 100644
--- a/Lib/foo.c
+++ b/Lib/foo.c
@@ -17,14 +17,12 @@
  */
 #define PIXEL_COPY(ip, ix, iy, op, ox, oy)			\
 			do {					\
-			op->Rpix[oy][x] = ip->Rpix[y][x];	\
-			op->Gpix[oy][x] = ip->Gpix[y][x];	\
-			op->Bpix[oy][x] = ip->Bpix[y][x];	\
+			(op->Rpix[oy])[ox] = (ip->Rpix[iy])[ix];	\
+			(op->Gpix[oy])[ox] = (ip->Gpix[iy])[ix];	\
+			(op->Bpix[oy])[ox] = (ip->Bpix[iy])[ix];	\
 			} while (0)
 
-#define SZPIC   5777	
-
-double tthi_dtime(void);
+#define SZPIC   4096
 
 void essai_pixcopy(int usemacro)
 {
@@ -32,11 +30,13 @@ Image_Desc	*alice, *bob;
 int		x, y, foo;
 double		T0, T1, perpix;
 long		count;
+char		*fname;
 
 alice = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
 bob   = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
 
-Image_pattern_000(alice, rand());
+Image_pattern_000(alice, 0);
+Image_TGA_save("alice.tga", alice, 0);
 
 T0 = tthi_dtime();
 count = 0L;
@@ -48,6 +48,7 @@ if (usemacro) {
 			count++;
 			}
 		}
+	fname = "bob1.tga";
 	}
 else {
 	for (y=0; y<SZPIC; y++) {
@@ -56,17 +57,18 @@ else {
 			count++;
 			}
 		}
+	fname = "bob0.tga";
 	}
 
 T1 = tthi_dtime();
 
-foo = Image_TGA_save("bob.tga", bob, 0);
+foo = Image_TGA_save(fname, bob, 0);
 if (foo) {
 	fprintf(stderr, "%s: save -> %d\n", __func__, foo);
 	}
 
-perpix = (T1-T0) / (double)count;
-fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %5.3g µs/ppix\n",
+perpix = ((T1-T0) / (double)count) * 1e6;
+fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %9.6f µs/pix\n",
 			usemacro ? "macro" : "func ",
 			count, T1-T0, perpix);
 
@@ -79,7 +81,7 @@ int main(int argc, char *argv[])
 {
 int	i;
 
-fprintf(stderr, "******** %s is running *********\n", argv[0]);
+fprintf(stderr, "*********** %s ************\n", argv[0]);
 
 if (argc > 1) {
 	fprintf(stderr, "argument: %s\n", argv[1]);
diff --git a/tthimage.h b/tthimage.h
index 344615a..97e9a73 100644
--- a/tthimage.h
+++ b/tthimage.h
@@ -4,7 +4,7 @@
 	http://la.buvette.org/devel/libimage/
 */
 #ifndef IMAGE_VERSION_STRING
-	#define IMAGE_VERSION_STRING "0.4.51 pl 85"
+	#define IMAGE_VERSION_STRING "0.4.51 pl 91"
 
 /*::------------------------------------------------------------------::*/
 /*
@@ -315,10 +315,15 @@ int Image_G_pixel(Image_Desc *img, int x, int y);
 int Image_B_pixel(Image_Desc *img, int x, int y);
 int Image_A_pixel(Image_Desc *img, int x, int y);
 
+/* Mon Aug 12 2024 : this function may be rewrited with a macro ? */
 int Image_pixel_copy(Image_Desc *s, int x, int y, Image_Desc *d, int i, int j);
 
 int Image_compare_desc(Image_Desc *a, Image_Desc *b);
 
+/*::------------------------------------------------------------------::*/
+/*	module functions.c						*/
+
+double tthi_dtime(void);
 
 /*::------------------------------------------------------------------::*/
 /*	module pixels.c							*/