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Use more accurate floating point literals

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This commit is contained in:
Chris Robinson
2015-11-06 10:27:28 -08:00
parent 858230f452
commit de74498cd9
3 changed files with 41 additions and 41 deletions
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Alc/ALu.c
+6 -6
View File
@@ -589,12 +589,12 @@ ALvoid CalcNonAttnSourceParams(ALvoice *voice, const ALsource *ALSource, const A
/* Build a rotate + conversion matrix (B-Format -> N3D), and include
* scaling for first-order content. */
scale = Device->AmbiScale * 1.7321f;
scale = Device->AmbiScale * 1.732050808f;
aluMatrixSet(&matrix,
1.4142f, 0.0f, 0.0f, 0.0f,
0.0f, -N[0]*scale, N[1]*scale, -N[2]*scale,
0.0f, U[0]*scale, -U[1]*scale, U[2]*scale,
0.0f, -V[0]*scale, V[1]*scale, -V[2]*scale
1.414213562f, 0.0f, 0.0f, 0.0f,
0.0f, -N[0]*scale, N[1]*scale, -N[2]*scale,
0.0f, U[0]*scale, -U[1]*scale, U[2]*scale,
0.0f, -V[0]*scale, V[1]*scale, -V[2]*scale
);
for(c = 0;c < num_channels;c++)
@@ -617,7 +617,7 @@ ALvoid CalcNonAttnSourceParams(ALvoice *voice, const ALsource *ALSource, const A
* sends. It also needs to be scaled by sqrt(2) to account for the
* signal being scaled by sqrt(1/2).
*/
voice->Send[i].Gains[0].Target = WetGain[i] * 1.4142f;
voice->Send[i].Gains[0].Target = WetGain[i] * 1.414213562f;
for(c = 1;c < num_channels;c++)
voice->Send[i].Gains[c].Target = 0.0f;
UpdateWetStepping(&voice->Send[i], num_channels, (voice->Send[i].Moving ? 64 : 0));
Alc/hrtf.c
+1 -1
View File
@@ -372,7 +372,7 @@ void GetBFormatHrtfCoeffs(const struct Hrtf *Hrtf, const ALuint num_chans, ALflo
y = sinf(-az) * cosf(elev);
z = sinf(elev);
ambi_coeffs[0] = 1.4142f;
ambi_coeffs[0] = 1.414213562f;
ambi_coeffs[1] = x;
ambi_coeffs[2] = y;
ambi_coeffs[3] = z;
Alc/panning.c
+34 -34
View File
@@ -63,22 +63,22 @@ static const ALuint FuMa2ACN[MAX_AMBI_COEFFS] = {
* coefficients.
*/
static const ALfloat FuMa2N3DScale[MAX_AMBI_COEFFS] = {
1.4142f, /* ACN 0 (W), sqrt(2) */
1.7321f, /* ACN 1 (Y), sqrt(3) */
1.7321f, /* ACN 2 (Z), sqrt(3) */
1.7321f, /* ACN 3 (X), sqrt(3) */
1.9365f, /* ACN 4 (V), sqrt(15)/2 */
1.9365f, /* ACN 5 (T), sqrt(15)/2 */
2.2361f, /* ACN 6 (R), sqrt(5) */
1.9365f, /* ACN 7 (S), sqrt(15)/2 */
1.9365f, /* ACN 8 (U), sqrt(15)/2 */
2.0917f, /* ACN 9 (Q), sqrt(35/8) */
1.9720f, /* ACN 10 (O), sqrt(35)/3 */
2.2311f, /* ACN 11 (M), sqrt(224/45) */
2.6458f, /* ACN 12 (K), sqrt(7) */
2.2311f, /* ACN 13 (L), sqrt(224/45) */
1.9720f, /* ACN 14 (N), sqrt(35)/3 */
2.0917f, /* ACN 15 (P), sqrt(35/8) */
1.414213562f, /* ACN 0 (W), sqrt(2) */
1.732050808f, /* ACN 1 (Y), sqrt(3) */
1.732050808f, /* ACN 2 (Z), sqrt(3) */
1.732050808f, /* ACN 3 (X), sqrt(3) */
1.936491673f, /* ACN 4 (V), sqrt(15)/2 */
1.936491673f, /* ACN 5 (T), sqrt(15)/2 */
2.236067978f, /* ACN 6 (R), sqrt(5) */
1.936491673f, /* ACN 7 (S), sqrt(15)/2 */
1.936491673f, /* ACN 8 (U), sqrt(15)/2 */
2.091650066f, /* ACN 9 (Q), sqrt(35/8) */
1.972026594f, /* ACN 10 (O), sqrt(35)/3 */
2.231093404f, /* ACN 11 (M), sqrt(224/45) */
2.645751311f, /* ACN 12 (K), sqrt(7) */
2.231093404f, /* ACN 13 (L), sqrt(224/45) */
1.972026594f, /* ACN 14 (N), sqrt(35)/3 */
2.091650066f, /* ACN 15 (P), sqrt(35/8) */
};
@@ -119,23 +119,23 @@ void ComputeDirectionalGains(const ALCdevice *device, const ALfloat dir[3], ALfl
/* Zeroth-order */
coeffs[0] = 1.0f; /* ACN 0 = 1 */
/* First-order */
coeffs[1] = 1.7321f * y; /* ACN 1 = sqrt(3) * Y */
coeffs[2] = 1.7321f * z; /* ACN 2 = sqrt(3) * Z */
coeffs[3] = 1.7321f * x; /* ACN 3 = sqrt(3) * X */
coeffs[1] = 1.732050808f * y; /* ACN 1 = sqrt(3) * Y */
coeffs[2] = 1.732050808f * z; /* ACN 2 = sqrt(3) * Z */
coeffs[3] = 1.732050808f * x; /* ACN 3 = sqrt(3) * X */
/* Second-order */
coeffs[4] = 3.8730f * x * y; /* ACN 4 = sqrt(15) * X * Y */
coeffs[5] = 3.8730f * y * z; /* ACN 5 = sqrt(15) * Y * Z */
coeffs[6] = 1.1180f * (3.0f*z*z - 1.0f); /* ACN 6 = sqrt(5)/2 * (3*Z*Z - 1) */
coeffs[7] = 3.8730f * x * z; /* ACN 7 = sqrt(15) * X * Z */
coeffs[8] = 1.9365f * (x*x - y*y); /* ACN 8 = sqrt(15)/2 * (X*X - Y*Y) */
coeffs[4] = 3.872983346f * x * y; /* ACN 4 = sqrt(15) * X * Y */
coeffs[5] = 3.872983346f * y * z; /* ACN 5 = sqrt(15) * Y * Z */
coeffs[6] = 1.118033989f * (3.0f*z*z - 1.0f); /* ACN 6 = sqrt(5)/2 * (3*Z*Z - 1) */
coeffs[7] = 3.872983346f * x * z; /* ACN 7 = sqrt(15) * X * Z */
coeffs[8] = 1.936491673f * (x*x - y*y); /* ACN 8 = sqrt(15)/2 * (X*X - Y*Y) */
/* Third-order */
coeffs[9] = 2.0917f * y * (3.0f*x*x - y*y); /* ACN 9 = sqrt(35/8) * Y * (3*X*X - Y*Y) */
coeffs[10] = 10.2470f * z * x * y; /* ACN 10 = sqrt(105) * Z * X * Y */
coeffs[11] = 1.6292f * y * (5.0f*z*z - 1.0f); /* ACN 11 = sqrt(21/8) * Y * (5*Z*Z - 1) */
coeffs[12] = 1.3229f * z * (5.0f*z*z - 3.0f); /* ACN 12 = sqrt(7)/2 * Z * (5*Z*Z - 3) */
coeffs[13] = 1.6292f * x * (5.0f*z*z - 1.0f); /* ACN 13 = sqrt(21/8) * X * (5*Z*Z - 1) */
coeffs[14] = 5.1235f * z * (x*x - y*y); /* ACN 14 = sqrt(105)/2 * Z * (X*X - Y*Y) */
coeffs[15] = 2.0917f * x * (x*x - 3.0f*y*y); /* ACN 15 = sqrt(35/8) * X * (X*X - 3*Y*Y) */
coeffs[9] = 2.091650066f * y * (3.0f*x*x - y*y); /* ACN 9 = sqrt(35/8) * Y * (3*X*X - Y*Y) */
coeffs[10] = 10.246950766f * z * x * y; /* ACN 10 = sqrt(105) * Z * X * Y */
coeffs[11] = 1.620185175f * y * (5.0f*z*z - 1.0f); /* ACN 11 = sqrt(21/8) * Y * (5*Z*Z - 1) */
coeffs[12] = 1.322875656f * z * (5.0f*z*z - 3.0f); /* ACN 12 = sqrt(7)/2 * Z * (5*Z*Z - 3) */
coeffs[13] = 1.620185175f * x * (5.0f*z*z - 1.0f); /* ACN 13 = sqrt(21/8) * X * (5*Z*Z - 1) */
coeffs[14] = 5.123475383f * z * (x*x - y*y); /* ACN 14 = sqrt(105)/2 * Z * (X*X - Y*Y) */
coeffs[15] = 2.091650066f * x * (x*x - 3.0f*y*y); /* ACN 15 = sqrt(35/8) * X * (X*X - 3*Y*Y) */
for(i = 0;i < device->NumChannels;i++)
{
@@ -421,10 +421,10 @@ ALvoid aluInitPanning(ALCdevice *device)
* Toolbox. SetChannelMap will convert them to N3D.
*/
static const ChannelMap MonoCfg[1] = {
{ FrontCenter, { 1.4142f } },
{ FrontCenter, { 1.414213562f } },
}, StereoCfg[2] = {
{ FrontLeft, { 0.7071f, 0.0f, 0.5f, 0.0f } },
{ FrontRight, { 0.7071f, 0.0f, -0.5f, 0.0f } },
{ FrontLeft, { 0.707106781f, 0.0f, 0.5f, 0.0f } },
{ FrontRight, { 0.707106781f, 0.0f, -0.5f, 0.0f } },
}, QuadCfg[4] = {
{ FrontLeft, { 0.353553f, 0.306184f, 0.306184f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.117186f } },
{ FrontRight, { 0.353553f, 0.306184f, -0.306184f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.117186f } },