breakin a srand usage

Lib/essais.c

@@ -17,6 +17,50 @@
 #include  "../tthimage.h"
 #include  "essais.h"
 
+/*		==============================				*/
+int essai_draw_paint_rect(char *outga)
+{
+Image_Desc		*img;
+Image_Rect		rect;
+int			foo, x, y;
+
+fprintf(stderr, ">>> %s ( '%s' )\n", __func__, outga);
+
+rect.x = 8;		rect.y = 8;
+rect.w = 6;		rect.h = 6;
+
+if (NULL==(img=Image_alloc(64, 32, 3))) {
+	abort();
+	}
+
+for (x=0; x<img->width; x+=2) {
+	for (y=0; y<img->height; y+=2) {
+		Image_plotRGB(img, x, y, 200, 200, 200);
+		}
+	}
+
+foo = Image_draw_rect(img, &rect, 192, 128, 64);
+if (foo) {
+	fprintf(stderr, "%s: err %d draw rect\n", __func__, foo);
+	return foo;
+	}
+
+rect.x = 24;
+foo = Image_paint_rect(img, &rect, 64, 128, 192);
+if (foo) {
+	fprintf(stderr, "%s: err %d paint rect\n", __func__, foo);
+	return foo;
+	}
+
+foo = Image_TGA_save(outga, img, 0);
+if (foo) {
+	fprintf(stderr, "%s: err %d save '%s'\n", __func__, foo, outga);
+	return foo;
+	}
+
+return OLL_KORRECT;
+}
+
 /*::------------------------------------------------------------------::*/
 /* nouveau vacances de fevrier 2010 */
 int Essayer_les_alphas(char *fname, int k)
@@ -946,9 +990,9 @@ return 0;
 }
 /*::------------------------------------------------------------------::*/
 /*
+ *	2023-09-30 this function need more work
  */
-int
-Test_copie_de_rectangles(char *nomsource)
+int Test_copie_de_rectangles(char *nomsource)
 {
 Image_Desc *source, *image, *finale;
 int	foo, w, h, x, y;

Lib/falsecolors.c

@@ -0,0 +1,39 @@
+/*
+ *		FALSECOLORS.C
+ *
+ *	new: Wed Oct  4 07:32:36 UTC 2023
+ *
+ *	see also	calcluts.c
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <unistd.h>
+#include  <stdint.h>
+#include  <string.h>
+#include  <math.h>
+
+#include  "../tthimage.h"
+
+/*::------------------------------------------------------------------::*/
+/*::------------------------------------------------------------------::*/
+int Image_gen_fc_lut(float maxval, int nbslots, RGB_map *plut)
+{
+int		idx, ilut;
+float		fval;
+
+fprintf(stderr, ">>> %s ( %f %d %p )\n", __func__, maxval, nbslots, plut);
+
+/* RAZ de les luts */
+memset(plut, 0, sizeof(RGB_map));
+
+for (idx=0; idx<nbslots; idx++) {
+	fval = (float)idx / (float)nbslots;
+	ilut = (int)(fval*256.0);
+	fprintf(stderr, "    %3d   %8.6f   %3d\n", idx, fval, ilut);
+	}
+
+return FULL_NUCKED;
+}
+/*::------------------------------------------------------------------::*/
+/*::------------------------------------------------------------------::*/

Lib/foo.c

@@ -7,6 +7,20 @@
 #include  "../tthimage.h"
 
 /*		==============================				*/
+
+int essai_false_colors(void)
+{
+int			foo;
+RGB_map			luts;
+
+foo = Image_gen_fc_lut(27e3, 33, &luts);
+fprintf(stderr, "retour gen_fc_lut = %d\n", foo);
+
+return -1;
+}
+
+/*		==============================				*/
+
 int essai_show_t16x24( char *text)
 {
 if (NULL != text)
@@ -28,69 +42,25 @@ foo = Image_plot_V_gradient("foo.tga", 900, 200);
 fprintf(stderr, "plot v gradient -> %d\n", foo);
 }
 /*		==============================				*/
-int essai_draw_paint_rect(char *outga)
-{
-Image_Desc		*img;
-Image_Rect		rect;
-int			foo, x, y;
-
-fprintf(stderr, ">>> %s ( '%s' )\n", __func__, outga);
-
-rect.x = 8;		rect.y = 8;
-rect.w = 6;		rect.h = 6;
-
-if (NULL==(img=Image_alloc(64, 32, 3))) {
-	abort();
-	}
-
-for (x=0; x<img->width; x+=2) {
-	for (y=0; y<img->height; y+=2) {
-		Image_plotRGB(img, x, y, 200, 200, 200);
-		}
-	}
-
-foo = Image_draw_rect(img, &rect, 192, 128, 64);
-if (foo) {
-	fprintf(stderr, "%s: err %d draw rect\n", __func__, foo);
-	return foo;
-	}
-
-rect.x = 24;
-foo = Image_paint_rect(img, &rect, 64, 128, 192);
-if (foo) {
-	fprintf(stderr, "%s: err %d paint rect\n", __func__, foo);
-	return foo;
-	}
-
-foo = Image_TGA_save(outga, img, 0);
-if (foo) {
-	fprintf(stderr, "%s: err %d save '%s'\n", __func__, foo, outga);
-	return foo;
-	}
-
-return OLL_KORRECT;
-}
-/*		==============================				*/
 
 int main(int argc, char *argv[])
 {
 
 fprintf(stderr, "*** %s is running\n", argv[0]);
 
-essai_gradients();
-
-#if 0
-Image_print_version(2);
-Image_print_sizeof_structs("foo");
+if (argc > 1) {
+	fprintf(stderr, "argument: %s\n", argv[1]);
+	Image_print_version(0);
+	Image_print_sizeof_structs("foo");
+	}
+else	{
+	essai_false_colors();
+	}
 
+/*
 foo = essai_show_t16x24(NULL);
 fprintf(stderr, "essai show t16x24 --> %d\n", foo);
-
-foo = essai_draw_paint_rect("foo.tga");
-fprintf(stderr, "essai draw rect --> %d\n", foo);
-
-Image_egalise_cos01(NULL, NULL, 0);
-#endif
+*/
 
 return 0;
 }

Lib/op2x2.c

@@ -184,7 +184,7 @@ int	dy[4] = { 0, 0, 1, 1 };
 for (y=0; y<src->height-1; y+=2) {
 	for (x=0; x<src->width-1; x+=2)	{
 		for (foo=0; foo<4; foo++) {
-			bar = (foo+rot)%4;
+			bar = (foo+rot)%4;	/* XXX ? */
 			r = (src->Rpix[y+dy[foo]])[x+dx[foo]];
 			g = (src->Gpix[y+dy[foo]])[x+dx[foo]];
 			b = (src->Bpix[y+dy[foo]])[x+dx[foo]];
@@ -198,25 +198,4 @@ for (y=0; y<src->height-1; y+=2) {
 return FUNC_IS_BETA;
 }
 /*::------------------------------------------------------------------::*/
-int Image_2x2_shiftUL(Image_Desc *src, Image_Desc *dst)
-{
-int		foo;
-
-#if DEBUG_LEVEL
-fprintf(stderr, "this func (%s) is a kluge\n", __func__);
-#endif
-
-if ( (foo=Image_compare_desc(src, dst)) ) {
-	fprintf(stderr, "%s: err compare %d\n", __func__, foo);
-	return foo;
-	}
-
-/* 1er septembre 2008: je n'ai pas la moindre idee de ce que j'ai
- * voulu faire ici :) */
-
-/* 26 novembre 2009: j'arrive pas a me rappeler du pourquoi de
- * ce que doit faire cette fonction */
-
-return FULL_NUCKED;
-}
 /*::------------------------------------------------------------------::*/

Tools/fonctions.c

@@ -450,13 +450,9 @@ int	set_new_seed(int k)
 char		*ptr;
 long		seed;
 
-#if DEBUG_MESSAGE
-if (k)	fprintf(stderr, "%s: k %d\n", __func__, k); 
-#endif
-
 if (NULL==(ptr=getenv("FIXED_SEED"))) {
 	/* no fixed seed in context, doing semi-random */
-	srand(getpid());
+	srand(getpid() + k);
 #if DEBUG_LEVEL
 	fprintf(stderr, "no FIXED_SEED, first rand is number : %d\n", rand());
 #endif
@@ -464,10 +460,6 @@ if (NULL==(ptr=getenv("FIXED_SEED"))) {
 else	{
 	/* try to parse the env var */
 	seed = strtol(ptr, NULL, 0);
-#if DEBUG_LEVEL
-	fprintf(stderr, "%s : strtol(%s) -> %ld\n",
-				__func__, ptr, seed);
-#endif
 	srand(seed);
 	}
 	

Tools/tga_applymap.c

@@ -16,7 +16,7 @@ fprintf(stderr, "* tga_applymap v 0.0.14 [%s] (dwtfywl) Krabulator 1910\n",
 fprintf(stderr, "  compiled %s at %s\n", __DATE__, __TIME__);
 
 fprintf(stderr, "Usage:\n\ttga_applymap M src.tga color.map dst.tga\n");
-fprintf(stderr, "       M is 1 or 2\n");
+fprintf(stderr, "       M is 1 (color mode) or 2 (gray mode)\n");
 if (flag) Image_print_version(0);
 exit(5);
 }