tweaking...

Modules/Makefile

@@ -4,7 +4,7 @@
 #	Makefile for the general purpose moduls
 #
 
-GFOPT  = -Wall -Wextra -time -g 
+GFOPT  =  -Wall  -Wextra  -time  -g
 
 all:	chkpixels
 

Modules/README.md

@@ -5,6 +5,10 @@
 
 Write gray level 2d buffer (aka picture) to disk in the NetPNM format.
 
+## pixrgb
+
+Write 8 bits RGB pictures to PNM format.
+
 ## trials
 
 Experimental WIPs from hell.

Modules/chkpixels.f90

@@ -11,8 +11,8 @@ program chkpixels
   implicit none
 
   write(0, *)  "------ CHKPIXELS ------"
-  ! call test_spit_as(3)
-  call test_spit_rgb(256)
+  call test_spit_as(3)
+  call test_spit_rgb(128, 222)
 
   STOP 'BECAUSE NO CPU AVAILABLE'
 
@@ -21,8 +21,8 @@ contains
 !-
 !     exerciser for the 'pixrgb' module
 !-
-  subroutine test_spit_rgb(sz)
-    integer, intent(in)    :: sz
+  subroutine test_spit_rgb(sz, kg)
+    integer, intent(in)    :: sz, kg
 
     type(t_pixrgb), allocatable  :: pixrgb(:,:)
     integer                      :: ix, iy
@@ -33,7 +33,7 @@ contains
     do ix=1, sz
       do iy=1, sz
         pixrgb(ix, iy)%r = ix
-        pixrgb(ix, iy)%g = 0
+        pixrgb(ix, iy)%g = mod(ix*iy, kg)
         pixrgb(ix, iy)%b = iy
       end do
     end do
@@ -50,6 +50,7 @@ contains
   integer, dimension(SZ, SZ)  :: greymap
   integer                     :: ix, iy, value
 
+  print *, "test spit as", sz
   value = 0
   do iy=1, SZ
     do ix=1, SZ
@@ -57,10 +58,10 @@ contains
       value = value + increment
     enddo
   enddo
-  call spit_as_pgm_16 (greymap, 'a.pgm')
-  call spit_as_pgm_eq (greymap, 'b.pgm')
-  call spit_as_pgm_8  (greymap, 'c.pgm')
-  call new_spit_a     (greymap, 'x.pgm')
+  call spit_as_pgm_16 (greymap, 'a.pnm')
+  call spit_as_pgm_eq (greymap, 'b.pnm')
+  call spit_as_pgm_8  (greymap, 'c.pnm')
+  call new_spit_a     (greymap, 'x.pnm')
   end subroutine
 
 end program

Modules/pixrgb.f90

@@ -1,5 +1,5 @@
 !-
-!	This module try to write PGM complient gray level files
+!	This module try to write PNM complient RGB files
 !-
 module pixrgb
     implicit none
@@ -28,6 +28,23 @@ subroutine rgbpix_set_to_zero(pic)
 end subroutine
 !-------------------------------------------------------------------
 !-
+!		NOT TESTED !!!
+!-
+subroutine rgb_pix_clamp_at_8(pic)
+  type(t_pixrgb), intent(inout)     ::  pic(:,:)
+  integer                           ::  ix, iy
+  do iy=1, ubound(pic, 2)
+    do ix=1, ubound(pic, 1)
+      pic(ix, iy)%r = max(0, min(pic(ix, iy)%r, 255))
+      pic(ix, iy)%g = max(0, min(pic(ix, iy)%g, 255))
+      pic(ix, iy)%b = max(0, min(pic(ix, iy)%b, 255))
+    enddo
+  enddo
+end subroutine
+!-------------------------------------------------------------------
+!-
+!          CAUTION: there was NO out-of-bounds check !
+!-
 subroutine rgbpix_spit_as_pnm_8(pic, fname)
   type(t_pixrgb), intent(in)       ::  pic(:,:)
   character (len=*), intent(in)    ::  fname
@@ -42,7 +59,7 @@ subroutine rgbpix_spit_as_pnm_8(pic, fname)
 
   do iy=1, ubound(pic, 2)
     do ix=1, ubound(pic, 1)
-      write(io, "(3I12)") pic(ix, iy)%r, pic(ix, iy)%g, pic(ix, iy)%b
+      write(io, "(3I5)") pic(ix, iy)%r, pic(ix, iy)%g, pic(ix, iy)%b
     enddo
   enddo
   close(unit=io)
@@ -50,6 +67,8 @@ subroutine rgbpix_spit_as_pnm_8(pic, fname)
 end subroutine
 !-------------------------------------------------------------------
 !-
+!          CAUTION: there was NO out-of-bounds check !
+!-
 subroutine rgbpix_spit_as_pnm_16(pic, fname)
 
   type(t_pixrgb), intent(in)       ::  pic(:,:)

Modules/spitpgm.f90

@@ -60,7 +60,8 @@ subroutine spit_as_pgm_16(pic, fname)
 
     open(newunit=io, file=fname)
     write (io, '(a2)') "P2"
-    write (io, '("# size:", I9)') size(pic)
+    write (io, '(A)')  "# spit_as_pgm_16"
+    ! write (io, '("# size:", I9)') size(pic)
     write (io, '(i0," ",i0)')  size(pic, 1), size(pic, 2)
     write (io, '(i0)') 65535
 

SoundBrotching/.gitignore

@@ -9,9 +9,9 @@
 text2wav
 wav2text
 text2ao
-essai
 
 panoramix
 genwaves
 soundbrotch
+essai
 

SoundBrotching/README.md

@@ -1,6 +1,6 @@
 # SoundBrotching
 
-Stay tuned, film at 11.
+Stay tuned, film at 440.
 
 ## Cheat Code
 
@@ -10,9 +10,9 @@ de ce sous-projet fortranique sont
 ecrits en C, pour un accès facile à des bibliothèques tierces
 comme `libsndfile` ou `libao`, composants essentiels du SoundBrotching.
 
-## Serious game
+## Not so serious game
 
-Quelques exemples simple, mais bruyants...
+Quelques exemples simple, mais bruyants... `runme.sh`
 
 ### genwaves
 
@@ -20,5 +20,5 @@ Génération de sons qui arrachent les oreilles.
 
 ### panoramix
 
-Conversion de l'entrée en mono, et dépacement en sinus d'un
-coté à l'autre.
+Conversion de l'entrée en mono, et déplacement en sinusoïdale d'un
+coté de l'univers à l'autre.

SoundBrotching/c-tools/support.c

@@ -24,7 +24,17 @@ return 0;
 /* --------------------------------------------------------------- */
 void print_version(char *msg)
 {
-fprintf(stderr, "=== %s compiled %s, %s\n",	\
+fprintf(stderr, "=== %s, support compiled %s, %s\n",	\
 			msg, __DATE__, __TIME__);
 }
 /* --------------------------------------------------------------- */
+int check_textfile_validity(char *filename, int what)
+{
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, filename, what);
+#endif
+
+return -1;
+}
+/* --------------------------------------------------------------- */

SoundBrotching/c-tools/support.h

@@ -10,4 +10,6 @@ int display_sf_info(SF_INFO *psf, char *text);
 
 void print_version(char *title);
 
+int check_textfile_validity(char *filename, int what);
+
 /* --------------------------------------------------------- */

SoundBrotching/c-tools/text2wav.c

@@ -1,5 +1,5 @@
 /*
- *	TEXT TO WAV
+ *	TEXT TO WAV       -       a klugeware from tTh 2023
  */
 
 #include  <stdio.h>
@@ -27,7 +27,7 @@ int			left, right;
 int			nb_lus, idx;
 
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( '%s' )\n", __func__, outf);
+fprintf(stderr, ">>> %s ( '%s' %d %d )\n", __func__, outf, sr, format);
 #endif
 
 if (format) {
@@ -78,11 +78,16 @@ while (2==fscanf(input, "%d %d", &left, &right)) {
 sf_write_short(sndf, buffer, idx);
 sf_close(sndf);
 
-fprintf(stderr, "%s: %d buffers written\n", __func__, nb_lus);
+free(buffer);
+
+fprintf(stderr, "%s: %d samples written\n", __func__, nb_lus);
 
 return 0;
 }
 /* --------------------------------------------------------------- */
+/*
+ *	this is a preview software, so no args parsiong yet...
+ */
 int main(int argc, char *argv[])
 {
 int			foo;

SoundBrotching/c-tools/wav2text.c

@@ -59,10 +59,7 @@ if ( NULL == (samples = malloc(BUFFER_SIZE*sizeof(short))) )
 	abort();
 	}
 
-while ( (lu=sf_read_short(sndf, samples, BUFFER_SIZE)) > 0 )
-	{
-	// fprintf(stderr, "   LU  = %5u\n", lu);
-
+while ( (lu=sf_read_short(sndf, samples, BUFFER_SIZE)) > 0 ) {
 	for (foo=0; foo<lu; foo+=2) {
 		printf("%d %d\n", samples[foo], samples[foo+1]);
 		}

SoundBrotching/essai.f90

@@ -11,11 +11,11 @@ program essai
 
   call soundbrotch_version()
 
-  do n = 20, 85
+  do n = 40, 85
     freq = midi2freq(n)
-    write(0, '(12X, I5, 5X, F9.3)') n, freq
-    call sinw_burst2i(6, 22000, freq, freq, 0.9)
-    call silence_burst2i(800)
+    write(0, '("   midi", I5, "   -> ", F9.3, " Hz")') n, freq
+    call sinw_burst2i(6, 44100, freq, freq, 0.9)
+    call silence_burst2i(2900)
   end do
 
 end program

SoundBrotching/panoramix.f90

@@ -1,4 +1,6 @@
-
+!-
+!		JUST A SMALL EXPERIMENT
+!-
 program panoramix
 
   use soundbrotch
@@ -20,9 +22,8 @@ program panoramix
       exit 
     endif
 
-    !  *** NON WORKING CODE ***
-    phi   = real(nblus) / 44100.0
-    ka    = sin(phi)
+    phi   = real(nblus) / 9500.0
+    ka    = 0.500 + (sin(phi) * 0.4999)
     value = (real(left)+real(right)) / 2.05
     left  = int(value * ka)
     right = int(value * (1.0-ka))

SoundBrotching/runme.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e			# trap on error
+
+DATAFILE="essai.text"
+OUTWAV="essai.wav"
+make essai
+
+./essai | tee $DATAFILE | c-tools/text2wav $OUTWAV
+
+sndfile-spectrogram				\
+	--min-freq=30 --max-freq=2000		\
+	--hann					\
+	$OUTWAV					\
+	1200 600				\
+	spectrogram.png

SoundBrotching/soundbrotch.f90

@@ -11,16 +11,14 @@ module soundbrotch
   
   integer, private               :: samplerate    = 48000
   real, private                  :: diapason      = 440.0
-  contains
+contains
   ! ---------------------------------------------------------
   subroutine soundbrotch_version ()
-    write(0, '(1X,A)') "--- this is soundbrotch version alpha 666"
+    write(0, '(1X,A)') "--- this is soundbrotch version alpha 667"
     write(0, *) "--- samplerate", samplerate
     write(0, *) "--- diapason  ", diapason
   end subroutine
   ! ---------------------------------------------------------
-  ! ---------------------------------------------------------
-
   ! ---------------------------------------------------------
   !        premier essai, le prototype peut changer !
 
@@ -33,8 +31,9 @@ module soundbrotch
     integer                    :: idx, left, right
     real                       :: coef
 
+    ! XXX temporary dirty hack
     if (dst .NE. 6) then
-      STOP '   OUPS!'
+      STOP '   OUPS, NOT ON STDOUT!'
     endif
 
     coef = (3.141592654 * 2.0) / real(samplerate)