From 797149c5a9ee0c7c70947f72cbaece5efd3dd687 Mon Sep 17 00:00:00 2001 From: Ludovic Pouzenc Date: Sat, 16 Jun 2012 22:29:33 +0000 Subject: Création du source tree princpal. Les routines de maths pour calculer le gain déconnent encore je trouve. Reste à intégrer la partie DMX et a améliorer tout ce qui a été laissé de côté... MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit git-svn-id: file:///var/svn/2012-violon-leds/trunk@20 6be1fa4d-33ac-4c33-becc-79fcb3794bb6 --- src/LICENSE.txt | 342 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ src/Makefile | 29 +++++ src/capture.c | 203 ++++++++++++++++++++++++++++++++ src/capture.h | 9 ++ src/compute.c | 116 ++++++++++++++++++ src/compute.h | 10 ++ src/fft.c | 241 ++++++++++++++++++++++++++++++++++++++ src/fft.h | 19 +++ src/gtkvumeter.c | 263 +++++++++++++++++++++++++++++++++++++++++ src/gtkvumeter.h | 39 +++++++ src/hsv2rgb.c | 59 ++++++++++ src/hsv2rgb.h | 18 +++ src/music2light.c | 80 +++++++++++++ src/win_main.c | 73 ++++++++++++ src/win_main.h | 9 ++ 15 files changed, 1510 insertions(+) create mode 100644 src/LICENSE.txt create mode 100644 src/Makefile create mode 100644 src/capture.c create mode 100644 src/capture.h create mode 100644 src/compute.c create mode 100644 src/compute.h create mode 100644 src/fft.c create mode 100644 src/fft.h create mode 100644 src/gtkvumeter.c create mode 100644 src/gtkvumeter.h create mode 100644 src/hsv2rgb.c create mode 100644 src/hsv2rgb.h create mode 100644 src/music2light.c create mode 100644 src/win_main.c create mode 100644 src/win_main.h (limited to 'src') diff --git a/src/LICENSE.txt b/src/LICENSE.txt new file mode 100644 index 0000000..ec091c1 --- /dev/null +++ b/src/LICENSE.txt @@ -0,0 +1,342 @@ + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. + diff --git a/src/Makefile b/src/Makefile new file mode 100644 index 0000000..67d7035 --- /dev/null +++ b/src/Makefile @@ -0,0 +1,29 @@ +CC=gcc +CFLAGS=-W -Wall -Werror -Wno-error=unused-parameter -g +LDFLAGS=-Werror -g +EXEC=music2light + +CFLAGS+=$(shell pkg-config --cflags gtk+-2.0 gthread-2.0 libpulse) +LDFLAGS+=-lm $(shell pkg-config --libs gtk+-2.0 gthread-2.0 libpulse) + +SRC= $(wildcard *.c) +OBJ= $(SRC:.c=.o) + +all: $(EXEC) + +$(EXEC): $(OBJ) + $(CC) -o $@ $^ $(LDFLAGS) + +#main.o: hello.h + +%.o: %.c + $(CC) -o $@ -c $< $(CFLAGS) + +.PHONY: clean mrproper + +clean: + rm *.o + +mrproper: clean + rm $(EXEC) + diff --git a/src/capture.c b/src/capture.c new file mode 100644 index 0000000..e8ca2fd --- /dev/null +++ b/src/capture.c @@ -0,0 +1,203 @@ +#include "capture.h" +#include +#include + +#define APP_TITLE "Test 5 lpo" +#define BUFSIZE 1024 + +extern void my_process(float *data, size_t nsamples, size_t nchan); + +capture_sound_level_cb_t *capture_sound_level_cb=NULL; + +int capture_init(pa_mainloop **m, pa_context **c); +void context_state_callback(pa_context *c, void *userdata); +void context_get_server_info_callback(pa_context *c, const pa_server_info*si, void *userdata); +void context_get_source_info_callback(pa_context *c, const pa_source_info *si, int is_last, void *userdata); +pa_stream * create_stream(pa_context *c, const pa_source_info *si); +void stream_state_callback(pa_stream *s, void *userdata); +void stream_read_callback(pa_stream *s, size_t nbytes, void *userdata); + +char *device_name=NULL; + +// Main procedure of this thread +void audio_thread(void *args) { + pa_context *c; + pa_mainloop *m; + int res, retval; + + capture_sound_level_cb=(capture_sound_level_cb_t *)args; + + //printf("debug : args==%p capture_sound_level_cb==%p\n", args, capture_sound_level_cb); + + res=capture_init(&m, &c); + g_assert(res==0); + + res=pa_mainloop_run(m,&retval); + g_assert(res==0); + g_assert(retval==0); + +// pa_context_disconnect(pa_ct); + pa_mainloop_free(m); +} + +int capture_init(pa_mainloop **m, pa_context **c) { + int res=0; + + *m=pa_mainloop_new(); + g_assert(*m); + + *c = pa_context_new(pa_mainloop_get_api(*m), APP_TITLE); + g_assert(*c); + + pa_context_set_state_callback(*c, context_state_callback, NULL); + res=pa_context_connect(*c, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL); + + return res; +} + +void context_state_callback(pa_context *c, void *userdata) { + switch (pa_context_get_state(c)) { + case PA_CONTEXT_UNCONNECTED: + printf("PA_CONTEXT_UNCONNECTED\n"); + break; + case PA_CONTEXT_CONNECTING: + printf("PA_CONTEXT_CONNECTING\n"); + break; + case PA_CONTEXT_AUTHORIZING: + printf("PA_CONTEXT_AUTHORIZING\n"); + break; + case PA_CONTEXT_SETTING_NAME: + printf("PA_CONTEXT_SETTING_NAME\n"); + break; + case PA_CONTEXT_READY: + printf("PA_CONTEXT_READY\n"); +// if (!device_name) { + pa_operation_unref(pa_context_get_server_info(c, context_get_server_info_callback, NULL)); +/* } else { + pa_operation_unref(pa_context_get_source_info_by_name(c, device_name, context_get_source_info_callback, NULL)); + } +*/ + break; + + case PA_CONTEXT_FAILED: + printf("PA_CONTEXT_FAILED\n"); + break; + + case PA_CONTEXT_TERMINATED: + printf("PA_CONTEXT_TERMINATED\n"); + break; + } +} + +void context_get_server_info_callback(pa_context *c, const pa_server_info*si, void *userdata) { + if (!si) { + printf("Failed to get server information\n"); + return; + } + + if (!si->default_source_name) { + printf("No default source set\n"); + return; + } + + pa_operation_unref(pa_context_get_source_info_by_name(c, si->default_source_name, context_get_source_info_callback, NULL)); + +} + +void context_get_source_info_callback(pa_context *c, const pa_source_info *si, int is_last, void *userdata) { + + if (is_last < 0) { + printf("Failed to get sink information\n"); + return; + } + + if (!si) { + return; + } + + create_stream(c,si); +} + +pa_stream *create_stream(pa_context *c, const pa_source_info *si) { + static const pa_buffer_attr ba={ + .maxlength=-1, + .tlength=1024, + .prebuf=-1, + .minreq=-1, + // .minreq=256, //For FFT calculus + .fragsize=512 + }; + + pa_sample_spec nss = { + .format = PA_SAMPLE_FLOAT32LE, + .rate = si->sample_spec.rate, + .channels = si->sample_spec.channels + }; + + pa_stream *stream=NULL; + //pa_proplist *pl=NULL; + char t[256]; + +/* + pa_channel_map cmap; + pa_channel_map_init_mono(&cmap); + //pa_channel_map_init_stereo(&cmap); +*/ + + printf("Source : %s (%s)\n", si->name, si->description); + printf("Using sample format: %s\n", pa_sample_spec_snprint(t, sizeof(t), &nss)); + printf("Using channel map: %s\n", pa_channel_map_snprint(t, sizeof(t), &(si->channel_map))); +/* + pl=pa_proplist_new(); + pa_proplist_set(pl, "maxlength", &pl_maxlength, sizeof(pl_maxlength)); + pa_proplist_set(pl, "tlength", &pl_tlength, sizeof(pl_tlength)); + pa_proplist_set(pl, "fragsize", &pl_fragsize, sizeof(pl_fragsize)); +*/ + stream=pa_stream_new(c, APP_TITLE, &nss, &(si->channel_map)); + //stream=pa_stream_new_with_proplist(c, APP_TITLE, &(si->sample_spec), &(si->channel_map), pl); + pa_stream_set_state_callback(stream, stream_state_callback, NULL); + pa_stream_set_read_callback(stream, stream_read_callback, NULL); + //pa_stream_connect_record(stream, APP_TITLE, NULL, (enum pa_stream_flags) 0); + pa_stream_connect_record(stream, si->name, &ba, PA_STREAM_ADJUST_LATENCY); + + return stream; +} + +void stream_state_callback(pa_stream *s, void *userdata) { + switch (pa_stream_get_state(s)) { + case PA_STREAM_UNCONNECTED: + printf("PA_STREAM_UNCONNECTED\n"); + break; + case PA_STREAM_CREATING: + printf("PA_STREAM_CREATING\n"); + break; + case PA_STREAM_READY: + printf("PA_STREAM_READY\n"); + //g_timeout_add(100, latency_func, NULL); + //pa_operation_unref(pa_stream_update_timing_info(stream, stream_update_timing_info_callback, NULL)); + break; + case PA_STREAM_FAILED: + printf("PA_STREAM_FAILED\n"); + break; + case PA_STREAM_TERMINATED: + printf("PA_STREAM_TERMINATED\n"); + break; + } +} + +void stream_read_callback(pa_stream *s, size_t nbytes, void *userdata) { + const void *p; + //printf("stream_read_callback %i\n", nbytes); + + if (pa_stream_peek(s, &p, &nbytes) < 0) { + printf("pa_stream_peek() failed\n");//: %s", pa_strerror(pa_context_errno(context))); + return; + } + +//printf("debug : before call capture_sound_level_cb==%p\n", capture_sound_level_cb); + my_process((float *)p,nbytes/sizeof(float), pa_stream_get_sample_spec(s)->channels); +//printf("debug : after call capture_sound_level_cb==%p\n", capture_sound_level_cb); + + pa_stream_drop(s); +} + diff --git a/src/capture.h b/src/capture.h new file mode 100644 index 0000000..2acbe09 --- /dev/null +++ b/src/capture.h @@ -0,0 +1,9 @@ +#ifndef CAPTURE_H +#define CAPTURE_H +#include + +typedef void(* capture_sound_level_cb_t)(gint sound_level, void *userdata); + +void audio_thread(void *args); + +#endif /*CAPTURE_H*/ diff --git a/src/compute.c b/src/compute.c new file mode 100644 index 0000000..272d6f8 --- /dev/null +++ b/src/compute.c @@ -0,0 +1,116 @@ +#include "compute.h" + +#include "fft.h" +#include + +#define MIN_SAMPLES 256 +#define MAX_SAMPLES 2048 + +//#define MAX(a,b) (a>b?a:b) +//#define MIN(a,b) (a= MAX_SAMPLES) { + printf("WARN : nsamples >= MAX_SAMPLES : %i >= %i\n", nsamples, MAX_SAMPLES); + nsamples=MAX_SAMPLES; + } + if (nsamples < MIN_SAMPLES) { + printf("WARN : nsamples < MIN_SAMPLES : %i >= %i\n", nsamples, MIN_SAMPLES); + // Replicate with symmetry the sound to obtain an input buffer of the minimal len + for (i=0;i 0.0) + output[i] = 10*log10(temp); + else + output[i] = 0; + } +} + +void audio2hsv_1(float audio_level, float *light_h, float *light_s, float *light_v) { + static float hue=0; + + float level_norm=(50.f+audio_level)/30.f; + + if (level_norm<0.f) level_norm=0.f; + if (level_norm>1.f) level_norm=1.f; + hue=(hue+0.0002f); + if (hue>1.f) hue-=1.f; + + printf("%+3.1f %+1.3f\n", audio_level, level_norm); + + // Dummy code + *light_h=hue; + *light_s=1.f; + *light_v=level_norm; +} + diff --git a/src/compute.h b/src/compute.h new file mode 100644 index 0000000..23d5798 --- /dev/null +++ b/src/compute.h @@ -0,0 +1,10 @@ +#ifndef COMPUTE_H +#define COMPUTE_H +#include // for size_t +#include // for printf + +float compute_level(const float *data, size_t nsamples, int rate); +void audio2hsv_1(float audio_level, float *light_h, float *light_s, float *light_v); + +#endif + diff --git a/src/fft.c b/src/fft.c new file mode 100644 index 0000000..dd91d14 --- /dev/null +++ b/src/fft.c @@ -0,0 +1,241 @@ +#include "fft.h" +#include +#include + +/* Everything here comes from Audacity 1.3.13 + (orignally in C++ and with more genericity and functionnality) + Original Author : Dominic Mazzoni + Licenced under GPL 2.0 (see LICENCE) +*/ + +#define MaxFastBits 16 + +int *gFFTBitTable[MaxFastBits]={NULL}; + +void InitFFT(); +int NumberOfBitsNeeded(int PowerOfTwo); +inline int FastReverseBits(int i, int NumBits); +int ReverseBits(int index, int NumBits); + + +void FFT(int NumSamples, + int InverseTransform, + float *RealIn, float *ImagIn, float *RealOut, float *ImagOut) +{ + int NumBits; /* Number of bits needed to store indices */ + int i, j, k, n; + int BlockSize, BlockEnd; + + double angle_numerator = 2.0 * M_PI; + double tr, ti; /* temp real, temp imaginary */ +/* + if (!IsPowerOfTwo(NumSamples)) { + fprintf(stderr, "%d is not a power of two\n", NumSamples); + exit(1); + } +*/ + if (!gFFTBitTable[0]) + InitFFT(); + + if (!InverseTransform) + angle_numerator = -angle_numerator; + + NumBits = NumberOfBitsNeeded(NumSamples); + + /* + ** Do simultaneous data copy and bit-reversal ordering into outputs... + */ + for (i = 0; i < NumSamples; i++) { + j = FastReverseBits(i, NumBits); + RealOut[j] = RealIn[i]; + ImagOut[j] = (ImagIn == NULL) ? 0.0 : ImagIn[i]; + } + + /* + ** Do the FFT itself... + */ + + BlockEnd = 1; + for (BlockSize = 2; BlockSize <= NumSamples; BlockSize <<= 1) { + + double delta_angle = angle_numerator / (double) BlockSize; + + double sm2 = sin(-2 * delta_angle); + double sm1 = sin(-delta_angle); + double cm2 = cos(-2 * delta_angle); + double cm1 = cos(-delta_angle); + double w = 2 * cm1; + double ar0, ar1, ar2, ai0, ai1, ai2; + + for (i = 0; i < NumSamples; i += BlockSize) { + ar2 = cm2; + ar1 = cm1; + + ai2 = sm2; + ai1 = sm1; + + for (j = i, n = 0; n < BlockEnd; j++, n++) { + ar0 = w * ar1 - ar2; + ar2 = ar1; + ar1 = ar0; + + ai0 = w * ai1 - ai2; + ai2 = ai1; + ai1 = ai0; + + k = j + BlockEnd; + tr = ar0 * RealOut[k] - ai0 * ImagOut[k]; + ti = ar0 * ImagOut[k] + ai0 * RealOut[k]; + + RealOut[k] = RealOut[j] - tr; + ImagOut[k] = ImagOut[j] - ti; + + RealOut[j] += tr; + ImagOut[j] += ti; + } + } + BlockEnd = BlockSize; + } + + /* + ** Need to normalize if inverse transform... + */ + + if (InverseTransform) { + float denom = (float) NumSamples; + + for (i = 0; i < NumSamples; i++) { + RealOut[i] /= denom; + ImagOut[i] /= denom; + } + } +} + +void InitFFT() { + int len=2; + int b, i; + for (b=0; b>= 1; + } + + return rev; +} + + +/* + * PowerSpectrum + * + * This function computes the same as RealFFT, above, but + * adds the squares of the real and imaginary part of each + * coefficient, extracting the power and throwing away the + * phase. + * + * For speed, it does not call RealFFT, but duplicates some + * of its code. + */ + +void PowerSpectrum(float In[PSNumS], float Out[PSHalf]) { + int i; + + float theta = M_PI / PSHalf; + + float tmpReal[PSHalf]; + float tmpImag[PSHalf]; + float RealOut[PSHalf]; + float ImagOut[PSHalf]; + + for (i=0; i +#include "gtkvumeter.h" + +#define MIN_HORIZONTAL_VUMETER_WIDTH 40 +#define HORIZONTAL_VUMETER_HEIGHT 20 +#define VERTICAL_VUMETER_WIDTH 20 +#define MIN_VERTICAL_VUMETER_HEIGHT 40 + +G_DEFINE_TYPE (GtkVuMeter, gtk_vu_meter, GTK_TYPE_DRAWING_AREA); + +static GdkColor default_f_gradient_keys[3] = {{0,65535,0,0},{0,65535,65535,0},{0,0,65535,0}}; +static GdkColor default_b_gradient_keys[3] = {{0,49151,0,0},{0,49151,49151,0},{0,0,49151,0}}; + +static gboolean gtk_vu_meter_expose (GtkWidget *vumeter, GdkEventExpose *event); +static void gtk_vu_meter_setup_colors (GtkVuMeter *vumeter); +static void gtk_vu_meter_free_colors (GtkVuMeter *vumeter); +static void free_drawbuf(guchar *pixels, gpointer data); +static void gtk_vu_meter_size_request (GtkWidget *widget, GtkRequisition *requisition); +static void gtk_vu_meter_size_allocate (GtkWidget *widget, GtkAllocation *allocation); +static gint gtk_vu_meter_sound_level_to_draw_level (GtkVuMeter *vumeter); + +static void gtk_vu_meter_class_init (GtkVuMeterClass *class) { + GtkWidgetClass *widget_class; + widget_class = GTK_WIDGET_CLASS (class); + widget_class->expose_event = gtk_vu_meter_expose; + widget_class->size_request = gtk_vu_meter_size_request; + widget_class->size_allocate = gtk_vu_meter_size_allocate; +} + +static void gtk_vu_meter_init (GtkVuMeter *vumeter) { + vumeter->vertical=TRUE; + gtk_vu_meter_set_gradient(vumeter, 3, default_f_gradient_keys, 3, default_b_gradient_keys); + gtk_vu_meter_setup_colors(vumeter); +} + +void gtk_vu_meter_set_gradient (GtkVuMeter *vumeter, gint f_gradient_key_count, GdkColor *f_gradient_keys, gint b_gradient_key_count, GdkColor *b_gradient_keys) { + //XXX : memdup is a bad idea ? + GdkColor *fgk = g_memdup(f_gradient_keys, f_gradient_key_count*sizeof(GdkColor)); + GdkColor *bgk = g_memdup(b_gradient_keys, b_gradient_key_count*sizeof(GdkColor)); + g_return_if_fail (fgk != NULL); + g_return_if_fail (bgk != NULL); + + vumeter->f_gradient_keys = fgk; + vumeter->f_gradient_key_count=f_gradient_key_count; + vumeter->b_gradient_keys = bgk; + vumeter->b_gradient_key_count=b_gradient_key_count; +} +static void gtk_vu_meter_free_colors (GtkVuMeter *vumeter) { + // TODO : free pixmaps +} + +static void gtk_vu_meter_setup_colors (GtkVuMeter *vumeter) { + + gint i,j; + guchar *f_drawbuf, *b_drawbuf, f_r, f_g, f_b, b_r, b_g, b_b; + gint f_key_len, b_key_len; + gint f_key_i, b_key_i; + gdouble f_key_pos, b_key_pos; + GdkColor *fgk, *bgk; + + gint h=GTK_WIDGET(vumeter)->allocation.height; + gint w=GTK_WIDGET(vumeter)->allocation.width; + + // Clean every previous colors and buffers + gtk_vu_meter_free_colors (vumeter); + + if (vumeter->vertical == TRUE) { + vumeter->colors = MAX(h, 0); + } else { + vumeter->colors = MAX(w, 0); + } + + // Allocate a memory buffers to hold the gradients + f_drawbuf=g_malloc(h*w*3); + b_drawbuf=g_malloc(h*w*3); + g_return_if_fail (f_drawbuf != NULL); + g_return_if_fail (b_drawbuf != NULL); + + // Compute some values before looping for gradient generation + f_key_len = vumeter->colors / (vumeter->f_gradient_key_count-1) + 1; + b_key_len = vumeter->colors / (vumeter->b_gradient_key_count-1) + 1; + fgk=vumeter->f_gradient_keys; + bgk=vumeter->b_gradient_keys; + + for (i=0; icolors; i++) { + // Compute the current position in the gradient keys + f_key_i=i/f_key_len; + f_key_pos=((gdouble) (i%f_key_len)/f_key_len); + b_key_i=i/f_key_len; + b_key_pos=((gdouble) (i%b_key_len)/b_key_len); + + /* Generate the Colours */ + /* foreground */ + f_r = ( fgk[f_key_i].red*(1.0-f_key_pos) + fgk[f_key_i+1].red*f_key_pos ) / 256; + f_g = ( fgk[f_key_i].green*(1.0-f_key_pos) + fgk[f_key_i+1].green*f_key_pos ) / 256; + f_b = ( fgk[f_key_i].blue*(1.0-f_key_pos) + fgk[f_key_i+1].blue*f_key_pos ) / 256; + /* background */ + b_r = ( bgk[b_key_i].red*(1.0-b_key_pos) + bgk[b_key_i+1].red*b_key_pos ) / 256; + b_g = ( bgk[b_key_i].green*(1.0-b_key_pos) + bgk[b_key_i+1].green*b_key_pos ) / 256; + b_b = ( bgk[b_key_i].blue*(1.0-b_key_pos) + bgk[b_key_i+1].blue*b_key_pos ) / 256; + + /* Apply the color in the drawbufs */ + if (vumeter->vertical == TRUE) { + // Vertical mode : draw directly the whole line of identical color + for (j=3*w*i; j<3*w*(i+1); ) { + f_drawbuf[j++]=f_r; + f_drawbuf[j++]=f_g; + f_drawbuf[j++]=f_b; + } + for (j=3*w*i; j<3*w*(i+1); ) { + b_drawbuf[j++]=b_r; + b_drawbuf[j++]=b_g; + b_drawbuf[j++]=b_b; + } + } else { + // Horiziontal mode : draw only the first line (color change at each pixel) + // Others line will be duplicated at the end + f_drawbuf[i]=f_r; + f_drawbuf[i+1]=f_g; + f_drawbuf[i+2]=f_b; + b_drawbuf[i]=b_r; + b_drawbuf[i+1]=b_g; + b_drawbuf[i+2]=b_b; + } + } + if (vumeter->vertical != TRUE) { + // Duplicate the first line over the others + for (j=1; jf_pixbuf = gdk_pixbuf_new_from_data(f_drawbuf, GDK_COLORSPACE_RGB, FALSE, 8, w, h, w*3, free_drawbuf, NULL); + vumeter->b_pixbuf = gdk_pixbuf_new_from_data(b_drawbuf, GDK_COLORSPACE_RGB, FALSE, 8, w, h, w*3, free_drawbuf, NULL); +} + +static void gtk_vu_meter_size_request (GtkWidget *widget, GtkRequisition *requisition) +{ + GtkVuMeter *vumeter; + + g_return_if_fail (GTK_IS_VU_METER (widget)); + g_return_if_fail (requisition != NULL); + + vumeter = GTK_VU_METER (widget); + + if (vumeter->vertical == TRUE) { + requisition->width = VERTICAL_VUMETER_WIDTH; + requisition->height = MIN_VERTICAL_VUMETER_HEIGHT; + } else { + requisition->width = MIN_HORIZONTAL_VUMETER_WIDTH; + requisition->height = HORIZONTAL_VUMETER_HEIGHT; + } +} + +static void gtk_vu_meter_size_allocate (GtkWidget *widget, GtkAllocation *allocation) +{ + GtkVuMeter *vumeter; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_VU_METER (widget)); + g_return_if_fail (allocation != NULL); + + widget->allocation = *allocation; + vumeter = GTK_VU_METER (widget); + + if (GTK_WIDGET_REALIZED (widget)) { + if (vumeter->vertical == TRUE) { /* veritcal */ + gdk_window_move_resize (widget->window, allocation->x, allocation->y, + VERTICAL_VUMETER_WIDTH, MAX(allocation->height, MIN_VERTICAL_VUMETER_HEIGHT)); + } else { /* horizontal */ + gdk_window_move_resize (widget->window, allocation->x, allocation->y, + MAX(allocation->width, MIN_HORIZONTAL_VUMETER_WIDTH), HORIZONTAL_VUMETER_HEIGHT); + } + /* Fix the colours */ + gtk_vu_meter_setup_colors (vumeter); + } +} + +static void free_drawbuf(guchar *pixels, gpointer data) { + g_free(pixels); +} + +static gboolean gtk_vu_meter_expose (GtkWidget *vumeter, GdkEventExpose *event) { + //gdk_pixbuf_render_to_drawable(pixbuf, dbuf_pixmap, app->style->fg_gc[GTK_STATE_NORMAL], 0, 0, 0, 0, WIDTH, HEIGHT, GDK_RGB_DITHER_NORMAL, 0, 0); + cairo_t *cr; + gint draw_level = gtk_vu_meter_sound_level_to_draw_level(GTK_VU_METER(vumeter)); + + cr = gdk_cairo_create (vumeter->window); + + // set a clip region for the expose event + cairo_rectangle (cr,event->area.x, event->area.y, event->area.width, event->area.height); + cairo_clip(cr); + + // Paint from the stored gradient + gdk_cairo_set_source_pixbuf(cr, GTK_VU_METER(vumeter)->b_pixbuf,0,0); + cairo_paint(cr); + + // set a clip region for the expose event + if (GTK_VU_METER(vumeter)->vertical==TRUE) { + cairo_rectangle (cr,event->area.x, event->area.y+draw_level, event->area.width, event->area.height-draw_level); + } else { + //TODO + cairo_rectangle (cr,event->area.x, event->area.y, event->area.width, 12/*event->area.height*/); + } + cairo_clip(cr); + + // Paint from the stored gradient + gdk_cairo_set_source_pixbuf(cr, GTK_VU_METER(vumeter)->f_pixbuf,0,0); + cairo_paint(cr); + + cairo_destroy(cr); + + return FALSE; +} + +static gint gtk_vu_meter_sound_level_to_draw_level (GtkVuMeter *vumeter) { + gint draw_level; + gdouble level, min, max, height; + + level = (gdouble)vumeter->level; + min = (gdouble)vumeter->min; + max = (gdouble)vumeter->max; + height = (gdouble)vumeter->colors; + + draw_level = (1.0 - (level - min)/(max - min)) * height; + + //printf("1.0 - (%lf - %lf)/(%lf - %lf)) * %lf => %i\n", level, min, max, min, height, draw_level); + + return draw_level; +} + +GtkWidget * gtk_vu_meter_new (gboolean vertical) { + GtkWidget *vumeter = g_object_new (GTK_TYPE_VU_METER, NULL); + GTK_VU_METER(vumeter)->vertical=vertical; + GTK_VU_METER(vumeter)->level=0; + GTK_VU_METER(vumeter)->min=-32767; + GTK_VU_METER(vumeter)->max=32767; + + return vumeter; +} + + +void gtk_vu_meter_set_min_max (GtkVuMeter *vumeter, gint min, gint max) +{ + g_return_if_fail (vumeter != NULL); + + vumeter->max = MAX(max, min); + vumeter->min = MIN(min, max); + if (vumeter->max == vumeter->min) { + vumeter->max++; + } + vumeter->level = CLAMP (vumeter->level, vumeter->min, vumeter->max); + gtk_widget_queue_draw (GTK_WIDGET(vumeter)); +} + +void gtk_vu_meter_set_level(GtkVuMeter *vumeter, gint level) +{ + g_return_if_fail (vumeter != NULL); + + vumeter->level = CLAMP (level, vumeter->min, vumeter->max); + gtk_widget_queue_draw (GTK_WIDGET(vumeter)); +} + diff --git a/src/gtkvumeter.h b/src/gtkvumeter.h new file mode 100644 index 0000000..07eb7c5 --- /dev/null +++ b/src/gtkvumeter.h @@ -0,0 +1,39 @@ +#ifndef GTKVUMETER_H +#define GTKVUMETER_H +#include + +#define GTK_TYPE_VU_METER (gtk_vu_meter_get_type ()) +#define GTK_VU_METER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_VU_METER, GtkVuMeter)) +#define GTK_VU_METER_CLASS(obj) (G_TYPE_CHECK_CLASS_CAST ((obj), GTK_VU_METER, GtkVuMeterClass)) +#define GTK_IS_VU_METER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_VU_METER)) +#define GTK_IS_VU_METER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((obj), GTK_TYPE_VU_METER)) +#define GTK_VU_METER_GET_CLASS (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_VU_METER, GtkVuMeterClass)) + +typedef struct _GtkVuMeter GtkVuMeter; +typedef struct _GtkVuMeterClass GtkVuMeterClass; + +struct _GtkVuMeter { + GtkDrawingArea parent; + + /* private */ + gboolean vertical; + gint level, min, max; + + gint f_gradient_key_count, b_gradient_key_count; + GdkColor *f_gradient_keys, *b_gradient_keys; + + gint colors; + GdkPixbuf *f_pixbuf, *b_pixbuf; +}; + +struct _GtkVuMeterClass { + GtkDrawingAreaClass parent_class; +}; + +GtkType gtk_vu_meter_get_type (void) G_GNUC_CONST; +GtkWidget * gtk_vu_meter_new (gboolean vertical); +void gtk_vu_meter_set_gradient (GtkVuMeter *vumeter, gint f_gradient_key_count, GdkColor *f_gradient_keys, gint b_gradient_key_count, GdkColor *b_gradient_keys); +void gtk_vu_meter_set_min_max (GtkVuMeter *vumeter, gint min, gint max); +void gtk_vu_meter_set_level(GtkVuMeter *vumeter, gint level); + +#endif /*GTKVUMETER_H*/ diff --git a/src/hsv2rgb.c b/src/hsv2rgb.c new file mode 100644 index 0000000..9f445e9 --- /dev/null +++ b/src/hsv2rgb.c @@ -0,0 +1,59 @@ +/* hsv2rgb.c + * Convert Hue Saturation Value to Red Green Blue + * + * P.J. 08-Aug-98 + * + * Reference: + * D. F. Rogers + * Procedural Elements for Computer Graphics + * McGraw Hill 1985 + */ + +#include "hsv2rgb.h" + +int hsv2rgb( struct hsv_colour *hsv, struct rgb_colour *rgb ) { + /* + * Purpose: + * Convert HSV values to RGB values + * All values are in the range [0.0 .. 1.0] + */ + float S, H, V, F, M, N, K; + int I; + + S = hsv->s; /* Saturation */ + H = hsv->h; /* Hue */ + V = hsv->v; /* value or brightness */ + + if ( S == 0.0 ) { + /* + * Achromatic case, set level of grey + */ + rgb->r = V; + rgb->g = V; + rgb->b = V; + } else { + /* + * Determine levels of primary colours. + */ + if (H >= 1.0) { + H = 0.0; + } else { + H = H * 6; + } /* end if */ + I = (int) H; /* should be in the range 0..5 */ + F = H - I; /* fractional part */ + + M = V * (1 - S); + N = V * (1 - S * F); + K = V * (1 - S * (1 - F)); + + if (I == 0) { rgb->r = V; rgb->g = K; rgb->b = M; } + if (I == 1) { rgb->r = N; rgb->g = V; rgb->b = M; } + if (I == 2) { rgb->r = M; rgb->g = V; rgb->b = K; } + if (I == 3) { rgb->r = M; rgb->g = N; rgb->b = V; } + if (I == 4) { rgb->r = K; rgb->g = M; rgb->b = V; } + if (I == 5) { rgb->r = V; rgb->g = M; rgb->b = N; } + } /* end if */ + + return 0; +} /* end function hsv2rgb */ diff --git a/src/hsv2rgb.h b/src/hsv2rgb.h new file mode 100644 index 0000000..bd880ff --- /dev/null +++ b/src/hsv2rgb.h @@ -0,0 +1,18 @@ +#ifndef HSV2RGB_H +#define HSV2RGB_H + +struct hsv_colour { + float h; + float s; + float v; +}; /* end struct */ + +struct rgb_colour { + float r; + float g; + float b; +}; /* end struct */ + +int hsv2rgb( struct hsv_colour *hsv, struct rgb_colour *rgb ); + +#endif /* HSV2RGB_H */ diff --git a/src/music2light.c b/src/music2light.c new file mode 100644 index 0000000..fd58d03 --- /dev/null +++ b/src/music2light.c @@ -0,0 +1,80 @@ +#include +#include +#include +#include "gtkvumeter.h" +#include "win_main.h" +#include "compute.h" +#include "capture.h" +#include "hsv2rgb.h" + +gint *audio_vumeter_val, *light_h, *light_s, *light_v, *light_r, *light_g, *light_b; +void my_process(float *data, size_t nsamples, size_t nchan); + +int main (int argc, char **argv) { + GtkWidget *mainwin; + gint vals_for_vumeters[7]={0,0,0,0,0,0,0}; //sound,h,s,v,r,g,b + //Some handy references to the previous array items to make things clear whenever possible + audio_vumeter_val=vals_for_vumeters+0; + light_h=vals_for_vumeters+1; + light_s=vals_for_vumeters+2; + light_v=vals_for_vumeters+3; + light_r=vals_for_vumeters+4; + light_g=vals_for_vumeters+5; + light_b=vals_for_vumeters+6; + + pthread_t audio_analyzer; + + g_thread_init(NULL); + gdk_threads_init(); + gdk_threads_enter(); + gtk_init (&argc, &argv); + + mainwin=win_main_build(); + gtk_widget_show_all (mainwin); + + printf("debug : main my_process==%p\n", my_process); + printf("debug : main (void *)my_process==%p\n", (void *)my_process); + pthread_create (&audio_analyzer, (void *)NULL, (void *)audio_thread, (void *)my_process); + g_timeout_add (25, win_main_update_vumeters, (gpointer)vals_for_vumeters); + + gtk_main (); + gdk_threads_leave(); + + return 0; +} + +void my_process(float *data, size_t nsamples, size_t nchan) { + + float sound_level; + struct hsv_colour hsv; + struct rgb_colour rgb; + + //FIXME : rate should came from PulseAudio + sound_level=compute_level(data, nsamples, 44100); + +// printf("sound_level==%f\n", sound_level); + + // Update sound vumeter value (refreshed asynchronously) + *audio_vumeter_val=(int)sound_level; + + // Transfert Function + audio2hsv_1(sound_level,&(hsv.h),&(hsv.s),&(hsv.v)); + + // Conversion + hsv2rgb(&hsv, &rgb); +// printf("hsv %+.3f %+.3f %+.3f\n", hsv.h, hsv.s, hsv.v); +// printf("rgb %+.3f %+.3f %+.3f\n", rgb.r, rgb.g, rgb.b); + + //Update vu-meters + *light_h=hsv.h*255; + *light_s=hsv.s*255; + *light_v=hsv.v*255; + + *light_r=rgb.r*255; + *light_g=rgb.g*255; + *light_b=rgb.b*255; + + // Send to DMX + //TODO +} + diff --git a/src/win_main.c b/src/win_main.c new file mode 100644 index 0000000..daa0a34 --- /dev/null +++ b/src/win_main.c @@ -0,0 +1,73 @@ +#include "win_main.h" +#include "gtkvumeter.h" + +GtkWidget *vumeter_sound, *vumeter_r, *vumeter_g, *vumeter_b, *vumeter_h, *vumeter_s, *vumeter_v; + +GtkWidget *win_main_build() { + GtkWidget *win, *hbox1; + + GdkColor f_gradient_red[2] = {{0,65535,0,0},{0,0,0,0}}; + GdkColor b_gradient_red[2] = {{0,49151,0,0},{0,0,0,0}}; + GdkColor f_gradient_green[2] = {{0,0,65535,0},{0,0,0,0}}; + GdkColor b_gradient_green[2] = {{0,0,49151,0},{0,0,0,0}}; + GdkColor f_gradient_blue[2] = {{0,0,0,65535},{0,0,0,0}}; + GdkColor b_gradient_blue[2] = {{0,0,0,49151},{0,0,0,0}}; + GdkColor f_gradient_hue[7] = {{0,65535,0,0},{0,65535,0,65535},{0,0,0,65535},{0,0,65535,65535},{0,0,65535,0},{0,65535,65535,0},{0,65535,0,0}}; + GdkColor b_gradient_hue[7] = {{0,49151,0,0},{0,49151,0,49151},{0,0,0,49151},{0,0,49151,49151},{0,0,49151,0},{0,49151,49151,0},{0,49151,0,0}}; + + win = gtk_window_new (GTK_WINDOW_TOPLEVEL); + + hbox1 = gtk_hbox_new(FALSE, 0); + gtk_container_add(GTK_CONTAINER(win), hbox1); + gtk_container_set_border_width(GTK_CONTAINER(hbox1), 5); + +//TODO : gtk_vumeter_set_min_max (GTK_VU_METER(vumeter), min, max); + vumeter_sound = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_sound), -50, 0); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_sound, FALSE, FALSE, 0); + + vumeter_h = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_h), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_h), 7, f_gradient_hue, 7, b_gradient_hue); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_h, FALSE, FALSE, 0); + + vumeter_s = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_s), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_s), 2, f_gradient_red, 2, b_gradient_red); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_s, FALSE, FALSE, 0); + + vumeter_v = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_v), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_v), 2, f_gradient_red, 2, b_gradient_red); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_v, FALSE, FALSE, 0); + + + vumeter_r = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_r), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_r), 2, f_gradient_red, 2, b_gradient_red); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_r, FALSE, FALSE, 0); + + vumeter_g = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_g), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_g), 2, f_gradient_green, 2, b_gradient_green); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_g, FALSE, FALSE, 0); + + vumeter_b = gtk_vu_meter_new (TRUE); + gtk_vu_meter_set_min_max(GTK_VU_METER(vumeter_b), 0, 255); + gtk_vu_meter_set_gradient(GTK_VU_METER(vumeter_b), 2, f_gradient_blue, 2, b_gradient_blue); + gtk_box_pack_start(GTK_BOX(hbox1), vumeter_b, FALSE, FALSE, 0); + + return win; +} + +gboolean win_main_update_vumeters(gpointer vals) { + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_sound), ((gint*)vals)[0]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_h), ((gint*)vals)[1]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_s), ((gint*)vals)[2]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_v), ((gint*)vals)[3]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_r), ((gint*)vals)[4]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_g), ((gint*)vals)[5]); + gtk_vu_meter_set_level(GTK_VU_METER(vumeter_b), ((gint*)vals)[6]); + return TRUE; +} + diff --git a/src/win_main.h b/src/win_main.h new file mode 100644 index 0000000..5068c89 --- /dev/null +++ b/src/win_main.h @@ -0,0 +1,9 @@ +#ifndef WIN_MAIN_H +#define WIN_MAIN_H +#include + +GtkWidget *win_main_build(); +gboolean win_main_update_vumeters(gpointer vals); + +#endif + -- cgit v1.2.3