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Change M_PI to G_PI

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This commit is contained in:
David Schleef 2010-12-30 14:20:52 -08:00
parent d4167c4fee
commit 7b8981766b
13 changed files with 53 additions and 53 deletions
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16
gst/audiofx/audiochebband.c
View file

@ -229,7 +229,7 @@ generate_biquad_coefficients (GstAudioChebBand * filter,
/* Calculate pole location for lowpass at frequency 1 */ /* Calculate pole location for lowpass at frequency 1 */
{ {
gdouble angle = (M_PI / 2.0) * (2.0 * p - 1) / np; gdouble angle = (G_PI / 2.0) * (2.0 * p - 1) / np;
rp = -sin (angle); rp = -sin (angle);
ip = cos (angle); ip = cos (angle);
@ -266,7 +266,7 @@ generate_biquad_coefficients (GstAudioChebBand * filter,
/* Calculate zero location for frequency 1 on the /* Calculate zero location for frequency 1 on the
* unit circle for type 2 */ * unit circle for type 2 */
if (type == 2) { if (type == 2) {
gdouble angle = M_PI / (np * 2.0) + ((p - 1) * M_PI) / (np); gdouble angle = G_PI / (np * 2.0) + ((p - 1) * G_PI) / (np);
gdouble mag2; gdouble mag2;
iz = cos (angle); iz = cos (angle);
@ -339,10 +339,10 @@ generate_biquad_coefficients (GstAudioChebBand * filter,
gdouble a, b, d; gdouble a, b, d;
gdouble alpha, beta; gdouble alpha, beta;
gdouble w0 = gdouble w0 =
2.0 * M_PI * (filter->lower_frequency / 2.0 * G_PI * (filter->lower_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble w1 = gdouble w1 =
2.0 * M_PI * (filter->upper_frequency / 2.0 * G_PI * (filter->upper_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
if (filter->mode == MODE_BAND_PASS) { if (filter->mode == MODE_BAND_PASS) {
@ -498,10 +498,10 @@ generate_coefficients (GstAudioChebBand * filter)
/* gain is H(wc), wc = center frequency */ /* gain is H(wc), wc = center frequency */
gdouble w1 = gdouble w1 =
2.0 * M_PI * (filter->lower_frequency / 2.0 * G_PI * (filter->lower_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble w2 = gdouble w2 =
2.0 * M_PI * (filter->upper_frequency / 2.0 * G_PI * (filter->upper_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble w0 = (w2 + w1) / 2.0; gdouble w0 = (w2 + w1) / 2.0;
gdouble zr = cos (w0), zi = sin (w0); gdouble zr = cos (w0), zi = sin (w0);
@ -530,10 +530,10 @@ generate_coefficients (GstAudioChebBand * filter)
np + 1, 1.0, 0.0))); np + 1, 1.0, 0.0)));
{ {
gdouble w1 = gdouble w1 =
2.0 * M_PI * (filter->lower_frequency / 2.0 * G_PI * (filter->lower_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble w2 = gdouble w2 =
2.0 * M_PI * (filter->upper_frequency / 2.0 * G_PI * (filter->upper_frequency /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble w0 = (w2 + w1) / 2.0; gdouble w0 = (w2 + w1) / 2.0;
gdouble zr, zi; gdouble zr, zi;

8
gst/audiofx/audiocheblimit.c
View file

@ -222,7 +222,7 @@ generate_biquad_coefficients (GstAudioChebLimit * filter,
/* Calculate pole location for lowpass at frequency 1 */ /* Calculate pole location for lowpass at frequency 1 */
{ {
gdouble angle = (M_PI / 2.0) * (2.0 * p - 1) / np; gdouble angle = (G_PI / 2.0) * (2.0 * p - 1) / np;
rp = -sin (angle); rp = -sin (angle);
ip = cos (angle); ip = cos (angle);
@ -259,7 +259,7 @@ generate_biquad_coefficients (GstAudioChebLimit * filter,
/* Calculate zero location for frequency 1 on the /* Calculate zero location for frequency 1 on the
* unit circle for type 2 */ * unit circle for type 2 */
if (type == 2) { if (type == 2) {
gdouble angle = M_PI / (np * 2.0) + ((p - 1) * M_PI) / (np); gdouble angle = G_PI / (np * 2.0) + ((p - 1) * G_PI) / (np);
gdouble mag2; gdouble mag2;
iz = cos (angle); iz = cos (angle);
@ -324,7 +324,7 @@ generate_biquad_coefficients (GstAudioChebLimit * filter,
{ {
gdouble k, d; gdouble k, d;
gdouble omega = gdouble omega =
2.0 * M_PI * (filter->cutoff / GST_AUDIO_FILTER (filter)->format.rate); 2.0 * G_PI * (filter->cutoff / GST_AUDIO_FILTER (filter)->format.rate);
if (filter->mode == MODE_LOW_PASS) if (filter->mode == MODE_LOW_PASS)
k = sin ((1.0 - omega) / 2.0) / sin ((1.0 + omega) / 2.0); k = sin ((1.0 - omega) / 2.0) / sin ((1.0 + omega) / 2.0);
@ -456,7 +456,7 @@ generate_coefficients (GstAudioChebLimit * filter)
#ifndef GST_DISABLE_GST_DEBUG #ifndef GST_DISABLE_GST_DEBUG
{ {
gdouble wc = gdouble wc =
2.0 * M_PI * (filter->cutoff / 2.0 * G_PI * (filter->cutoff /
GST_AUDIO_FILTER (filter)->format.rate); GST_AUDIO_FILTER (filter)->format.rate);
gdouble zr = cos (wc), zi = sin (wc); gdouble zr = cos (wc), zi = sin (wc);

4
gst/audiofx/audiokaraoke.c
View file

@ -179,8 +179,8 @@ update_filter (GstAudioKaraoke * filter, gint rate)
if (rate == 0) if (rate == 0)
return; return;
C = exp (-2 * M_PI * filter->filter_width / rate); C = exp (-2 * G_PI * filter->filter_width / rate);
B = -4 * C / (1 + C) * cos (2 * M_PI * filter->filter_band / rate); B = -4 * C / (1 + C) * cos (2 * G_PI * filter->filter_band / rate);
A = sqrt (1 - B * B / (4 * C)) * (1 - C); A = sqrt (1 - B * B / (4 * C)) * (1 - C);
filter->A = A; filter->A = A;

16
gst/audiofx/audiowsincband.c
View file

@ -255,7 +255,7 @@ gst_audio_wsincband_build_kernel (GstAudioWSincBand * self)
(self->mode == MODE_BAND_PASS) ? "band-pass" : "band-reject"); (self->mode == MODE_BAND_PASS) ? "band-pass" : "band-reject");
/* fill the lp kernel */ /* fill the lp kernel */
w = 2 * M_PI * (self->lower_frequency / GST_AUDIO_FILTER (self)->format.rate); w = 2 * G_PI * (self->lower_frequency / GST_AUDIO_FILTER (self)->format.rate);
kernel_lp = g_new (gdouble, len); kernel_lp = g_new (gdouble, len);
for (i = 0; i < len; ++i) { for (i = 0; i < len; ++i) {
if (i == len / 2) if (i == len / 2)
@ -265,11 +265,11 @@ gst_audio_wsincband_build_kernel (GstAudioWSincBand * self)
/ (i - len / 2); / (i - len / 2);
/* Windowing */ /* Windowing */
if (self->window == WINDOW_HAMMING) if (self->window == WINDOW_HAMMING)
kernel_lp[i] *= (0.54 - 0.46 * cos (2 * M_PI * i / len)); kernel_lp[i] *= (0.54 - 0.46 * cos (2 * G_PI * i / len));
else else
kernel_lp[i] *= kernel_lp[i] *=
(0.42 - 0.5 * cos (2 * M_PI * i / len) + (0.42 - 0.5 * cos (2 * G_PI * i / len) +
0.08 * cos (4 * M_PI * i / len)); 0.08 * cos (4 * G_PI * i / len));
} }
/* normalize for unity gain at DC */ /* normalize for unity gain at DC */
@ -280,7 +280,7 @@ gst_audio_wsincband_build_kernel (GstAudioWSincBand * self)
kernel_lp[i] /= sum; kernel_lp[i] /= sum;
/* fill the hp kernel */ /* fill the hp kernel */
w = 2 * M_PI * (self->upper_frequency / GST_AUDIO_FILTER (self)->format.rate); w = 2 * G_PI * (self->upper_frequency / GST_AUDIO_FILTER (self)->format.rate);
kernel_hp = g_new (gdouble, len); kernel_hp = g_new (gdouble, len);
for (i = 0; i < len; ++i) { for (i = 0; i < len; ++i) {
if (i == len / 2) if (i == len / 2)
@ -290,11 +290,11 @@ gst_audio_wsincband_build_kernel (GstAudioWSincBand * self)
/ (i - len / 2); / (i - len / 2);
/* Windowing */ /* Windowing */
if (self->window == WINDOW_HAMMING) if (self->window == WINDOW_HAMMING)
kernel_hp[i] *= (0.54 - 0.46 * cos (2 * M_PI * i / len)); kernel_hp[i] *= (0.54 - 0.46 * cos (2 * G_PI * i / len));
else else
kernel_hp[i] *= kernel_hp[i] *=
(0.42 - 0.5 * cos (2 * M_PI * i / len) + (0.42 - 0.5 * cos (2 * G_PI * i / len) +
0.08 * cos (4 * M_PI * i / len)); 0.08 * cos (4 * G_PI * i / len));
} }
/* normalize for unity gain at DC */ /* normalize for unity gain at DC */

8
gst/audiofx/audiowsinclimit.c
View file

@ -239,7 +239,7 @@ gst_audio_wsinclimit_build_kernel (GstAudioWSincLimit * self)
(self->mode == MODE_LOW_PASS) ? "low-pass" : "high-pass"); (self->mode == MODE_LOW_PASS) ? "low-pass" : "high-pass");
/* fill the kernel */ /* fill the kernel */
w = 2 * M_PI * (self->cutoff / GST_AUDIO_FILTER (self)->format.rate); w = 2 * G_PI * (self->cutoff / GST_AUDIO_FILTER (self)->format.rate);
kernel = g_new (gdouble, len); kernel = g_new (gdouble, len);
@ -250,10 +250,10 @@ gst_audio_wsinclimit_build_kernel (GstAudioWSincLimit * self)
kernel[i] = sin (w * (i - len / 2)) / (i - len / 2); kernel[i] = sin (w * (i - len / 2)) / (i - len / 2);
/* windowing */ /* windowing */
if (self->window == WINDOW_HAMMING) if (self->window == WINDOW_HAMMING)
kernel[i] *= (0.54 - 0.46 * cos (2 * M_PI * i / len)); kernel[i] *= (0.54 - 0.46 * cos (2 * G_PI * i / len));
else else
kernel[i] *= (0.42 - 0.5 * cos (2 * M_PI * i / len) + kernel[i] *= (0.42 - 0.5 * cos (2 * G_PI * i / len) +
0.08 * cos (4 * M_PI * i / len)); 0.08 * cos (4 * G_PI * i / len));
} }
/* normalize for unity gain at DC */ /* normalize for unity gain at DC */

4
gst/effectv/gstop.c
View file

@ -161,14 +161,14 @@ setOpmap (gint8 * opmap[4], gint width, gint height)
#endif #endif
opmap[OP_SPIRAL1][i] = ((guint) opmap[OP_SPIRAL1][i] = ((guint)
((at / M_PI * 256) + (r * 4000))) & 255; ((at / G_PI * 256) + (r * 4000))) & 255;
j = r * 300 / 32; j = r * 300 / 32;
rr = r * 300 - j * 32; rr = r * 300 - j * 32;
j *= 64; j *= 64;
j += (rr > 28) ? (rr - 28) * 16 : 0; j += (rr > 28) ? (rr - 28) * 16 : 0;
opmap[OP_SPIRAL2][i] = ((guint) opmap[OP_SPIRAL2][i] = ((guint)
((at / M_PI * 4096) + (r * 1600) - j)) & 255; ((at / G_PI * 4096) + (r * 1600) - j)) & 255;
opmap[OP_PARABOLA][i] = opmap[OP_PARABOLA][i] =
((guint) (yy / (xx * xx * 0.3 + 0.1) * 400)) & 255; ((guint) (yy / (xx * xx * 0.3 + 0.1) * 400)) & 255;

10
gst/equalizer/gstiirequalizer.c
View file

@ -441,11 +441,11 @@ calculate_omega (gdouble freq, gint rate)
gdouble omega; gdouble omega;
if (freq / rate >= 0.5) if (freq / rate >= 0.5)
omega = M_PI; omega = G_PI;
else if (freq <= 0.0) else if (freq <= 0.0)
omega = 0.0; omega = 0.0;
else else
omega = 2.0 * M_PI * (freq / rate); omega = 2.0 * G_PI * (freq / rate);
return omega; return omega;
} }
@ -456,10 +456,10 @@ calculate_bw (GstIirEqualizerBand * band, gint rate)
gdouble bw = 0.0; gdouble bw = 0.0;
if (band->width / rate >= 0.5) { if (band->width / rate >= 0.5) {
/* If bandwidth == 0.5 the calculation below fails as tan(M_PI/2) /* If bandwidth == 0.5 the calculation below fails as tan(G_PI/2)
* is undefined. So set the bandwidth to a slightly smaller value. * is undefined. So set the bandwidth to a slightly smaller value.
*/ */
bw = M_PI - 0.00000001; bw = G_PI - 0.00000001;
} else if (band->width <= 0.0) { } else if (band->width <= 0.0) {
/* If bandwidth == 0 this band won't change anything so set /* If bandwidth == 0 this band won't change anything so set
* the coefficients accordingly. The coefficient calculation * the coefficients accordingly. The coefficient calculation
@ -472,7 +472,7 @@ calculate_bw (GstIirEqualizerBand * band, gint rate)
band->b1 = 0.0; band->b1 = 0.0;
band->b2 = 0.0; band->b2 = 0.0;
} else { } else {
bw = 2.0 * M_PI * (band->width / rate); bw = 2.0 * G_PI * (band->width / rate);
} }
return bw; return bw;
} }

2
gst/goom/convolve_fx.c
View file

@ -76,7 +76,7 @@ compute_tables (VisualFX * _this, PluginInfo * info)
data->h_height = info->screen.height; data->h_height = info->screen.height;
for (i = 0; i < NB_THETA; i++) { for (i = 0; i < NB_THETA; i++) {
radian = 2 * i * M_PI / NB_THETA; radian = 2 * i * G_PI / NB_THETA;
h = (0.2 + cos (radian) / 15.0 * sin (radian * 2.0 + 12.123)) * screen_coef; h = (0.2 + cos (radian) / 15.0 * sin (radian * 2.0 + 12.123)) * screen_coef;
data->h_cos[i] = 0x10000 * (-h * cos (radian) * cos (radian)); data->h_cos[i] = 0x10000 * (-h * cos (radian) * cos (radian));
data->h_sin[i] = 0x10000 * (h * sin (radian + 1.57) * sin (radian)); data->h_sin[i] = 0x10000 * (h * sin (radian + 1.57) * sin (radian));

4
gst/goom/ifs.c
View file

@ -177,8 +177,8 @@ Random_Simis (PluginInfo * goomInfo, FRACTAL * F, SIMI * Cur, int i)
Cur->c_y = Gauss_Rand (goomInfo, 0.0, .8, 4.0); Cur->c_y = Gauss_Rand (goomInfo, 0.0, .8, 4.0);
Cur->r = Gauss_Rand (goomInfo, F->r_mean, F->dr_mean, 3.0); Cur->r = Gauss_Rand (goomInfo, F->r_mean, F->dr_mean, 3.0);
Cur->r2 = Half_Gauss_Rand (goomInfo, 0.0, F->dr2_mean, 2.0); Cur->r2 = Half_Gauss_Rand (goomInfo, 0.0, F->dr2_mean, 2.0);
Cur->A = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (M_PI / 180.0); Cur->A = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (G_PI / 180.0);
Cur->A2 = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (M_PI / 180.0); Cur->A2 = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (G_PI / 180.0);
Cur++; Cur++;
} }
} }

4
gst/goom/lines.c
View file

@ -70,7 +70,7 @@ genline (int id, float param, GMUnitPointer * l, int rx, int ry)
for (i = 0; i < 512; i++) { for (i = 0; i < 512; i++) {
l[i].x = ((float) i * rx) / 512.0f; l[i].x = ((float) i * rx) / 512.0f;
l[i].y = param; l[i].y = param;
l[i].angle = M_PI / 2.0f; l[i].angle = G_PI / 2.0f;
} }
return; return;
case GML_VLINE: case GML_VLINE:
@ -84,7 +84,7 @@ genline (int id, float param, GMUnitPointer * l, int rx, int ry)
for (i = 0; i < 512; i++) { for (i = 0; i < 512; i++) {
float cosa, sina; float cosa, sina;
l[i].angle = 2.0f * M_PI * (float) i / 512.0f; l[i].angle = 2.0f * G_PI * (float) i / 512.0f;
cosa = param * cos (l[i].angle); cosa = param * cos (l[i].angle);
sina = param * sin (l[i].angle); sina = param * sin (l[i].angle);
l[i].x = ((float) rx / 2.0f) + cosa; l[i].x = ((float) rx / 2.0f) + cosa;

26
gst/goom/tentacle3d.c
View file

@ -51,7 +51,7 @@ typedef struct _TENTACLE_FX_DATA
/* statics from pretty_move */ /* statics from pretty_move */
float distt; float distt;
float distt2; float distt2;
float rot; /* entre 0 et 2 * M_PI */ float rot; /* entre 0 et 2 * G_PI */
int happens; int happens;
int rotation; int rotation;
int lock; int lock;
@ -85,7 +85,7 @@ tentacle_fx_init (VisualFX * _this, PluginInfo * info)
data->distt = 10.0f; data->distt = 10.0f;
data->distt2 = 0.0f; data->distt2 = 0.0f;
data->rot = 0.0f; /* entre 0 et 2 * M_PI */ data->rot = 0.0f; /* entre 0 et 2 * G_PI */
data->happens = 0; data->happens = 0;
data->rotation = 0; data->rotation = 0;
@ -253,27 +253,27 @@ pretty_move (PluginInfo * goomInfo, float cycle, float *dist, float *dist2,
*dist = fx_data->distt = (tmp + 3.0f * fx_data->distt) / 4.0f; *dist = fx_data->distt = (tmp + 3.0f * fx_data->distt) / 4.0f;
if (!fx_data->happens) { if (!fx_data->happens) {
tmp = M_PI * sin (cycle) / 32 + 3 * M_PI / 2; tmp = G_PI * sin (cycle) / 32 + 3 * G_PI / 2;
} else { } else {
fx_data->rotation = fx_data->rotation =
goom_irand (goomInfo->gRandom, goom_irand (goomInfo->gRandom,
500) ? fx_data->rotation : goom_irand (goomInfo->gRandom, 2); 500) ? fx_data->rotation : goom_irand (goomInfo->gRandom, 2);
if (fx_data->rotation) if (fx_data->rotation)
cycle *= 2.0f * M_PI; cycle *= 2.0f * G_PI;
else else
cycle *= -1.0f * M_PI; cycle *= -1.0f * G_PI;
tmp = cycle - (M_PI * 2.0) * floor (cycle / (M_PI * 2.0)); tmp = cycle - (G_PI * 2.0) * floor (cycle / (G_PI * 2.0));
} }
if (abs (tmp - fx_data->rot) > abs (tmp - (fx_data->rot + 2.0 * M_PI))) { if (abs (tmp - fx_data->rot) > abs (tmp - (fx_data->rot + 2.0 * G_PI))) {
fx_data->rot = (tmp + 15.0f * (fx_data->rot + 2 * M_PI)) / 16.0f; fx_data->rot = (tmp + 15.0f * (fx_data->rot + 2 * G_PI)) / 16.0f;
if (fx_data->rot > 2.0 * M_PI) if (fx_data->rot > 2.0 * G_PI)
fx_data->rot -= 2.0 * M_PI; fx_data->rot -= 2.0 * G_PI;
*rotangle = fx_data->rot; *rotangle = fx_data->rot;
} else if (abs (tmp - fx_data->rot) > abs (tmp - (fx_data->rot - 2.0 * M_PI))) { } else if (abs (tmp - fx_data->rot) > abs (tmp - (fx_data->rot - 2.0 * G_PI))) {
fx_data->rot = (tmp + 15.0f * (fx_data->rot - 2.0 * M_PI)) / 16.0f; fx_data->rot = (tmp + 15.0f * (fx_data->rot - 2.0 * G_PI)) / 16.0f;
if (fx_data->rot < 0.0f) if (fx_data->rot < 0.0f)
fx_data->rot += 2.0 * M_PI; fx_data->rot += 2.0 * G_PI;
*rotangle = fx_data->rot; *rotangle = fx_data->rot;
} else } else
*rotangle = fx_data->rot = (tmp + 15.0f * fx_data->rot) / 16.0f; *rotangle = fx_data->rot = (tmp + 15.0f * fx_data->rot) / 16.0f;

2
tests/examples/audiofx/firfilter-example.c
View file

@ -90,7 +90,7 @@ on_rate_changed (GstElement * element, gint rate, gpointer user_data)
* a better result than given from the rectangular window * a better result than given from the rectangular window
*/ */
for (i = 0; i < 32; i++) for (i = 0; i < 32; i++)
filter_kernel[i] *= (0.54 - 0.46 * cos (2 * M_PI * i / 32)); filter_kernel[i] *= (0.54 - 0.46 * cos (2 * G_PI * i / 32));
va = g_value_array_new (1); va = g_value_array_new (1);

2
tests/examples/audiofx/iirfilter-example.c
View file

@ -63,7 +63,7 @@ on_rate_changed (GstElement * element, gint rate, gpointer user_data)
gdouble x; gdouble x;
if (rate / 2.0 > CUTOFF) if (rate / 2.0 > CUTOFF)
x = exp (-2.0 * M_PI * (CUTOFF / rate)); x = exp (-2.0 * G_PI * (CUTOFF / rate));
else else
x = 0.0; x = 0.0;