mirror of
https://github.com/love2d/megasource.git
synced 2026-08-19 12:14:41 +02:00
Added missing changes to the OpenAL-Soft update.
This commit is contained in:
Alex Szpakowski
+484
-377
@@ -13,8 +13,8 @@
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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@@ -30,421 +30,528 @@
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "alu.h"
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#include "bool.h"
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extern inline void SetGains(const ALCdevice *device, ALfloat ingain, ALfloat gains[MaxChannels]);
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static void SetSpeakerArrangement(const char *name, ALfloat SpeakerAngle[MaxChannels],
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enum Channel Speaker2Chan[MaxChannels], ALint chans)
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#define ZERO_ORDER_SCALE 0.0f
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#define FIRST_ORDER_SCALE 1.0f
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#define SECOND_ORDER_SCALE (1.0f / 1.22474f)
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#define THIRD_ORDER_SCALE (1.0f / 1.30657f)
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static const ALuint FuMa2ACN[MAX_AMBI_COEFFS] = {
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0, /* W */
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3, /* X */
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1, /* Y */
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2, /* Z */
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6, /* R */
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7, /* S */
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5, /* T */
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8, /* U */
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4, /* V */
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12, /* K */
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13, /* L */
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11, /* M */
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14, /* N */
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10, /* O */
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15, /* P */
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9, /* Q */
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};
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/* NOTE: These are scale factors as applied to Ambisonics content. FuMa
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* decoder coefficients should be divided by these values to get N3D decoder
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* coefficients.
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*/
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static const ALfloat FuMa2N3DScale[MAX_AMBI_COEFFS] = {
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1.414213562f, /* ACN 0 (W), sqrt(2) */
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1.732050808f, /* ACN 1 (Y), sqrt(3) */
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1.732050808f, /* ACN 2 (Z), sqrt(3) */
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1.732050808f, /* ACN 3 (X), sqrt(3) */
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1.936491673f, /* ACN 4 (V), sqrt(15)/2 */
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1.936491673f, /* ACN 5 (T), sqrt(15)/2 */
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2.236067978f, /* ACN 6 (R), sqrt(5) */
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1.936491673f, /* ACN 7 (S), sqrt(15)/2 */
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1.936491673f, /* ACN 8 (U), sqrt(15)/2 */
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2.091650066f, /* ACN 9 (Q), sqrt(35/8) */
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1.972026594f, /* ACN 10 (O), sqrt(35)/3 */
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2.231093404f, /* ACN 11 (M), sqrt(224/45) */
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2.645751311f, /* ACN 12 (K), sqrt(7) */
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2.231093404f, /* ACN 13 (L), sqrt(224/45) */
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1.972026594f, /* ACN 14 (N), sqrt(35)/3 */
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2.091650066f, /* ACN 15 (P), sqrt(35/8) */
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};
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void ComputeAmbientGains(const ALCdevice *device, ALfloat ingain, ALfloat gains[MAX_OUTPUT_CHANNELS])
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{
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char *confkey, *next;
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char *layout_str;
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char *sep, *end;
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enum Channel val;
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const char *str;
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int i;
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ALuint i;
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if(!ConfigValueStr(NULL, name, &str) && !ConfigValueStr(NULL, "layout", &str))
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return;
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layout_str = strdup(str);
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next = confkey = layout_str;
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while(next && *next)
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for(i = 0;i < device->NumChannels;i++)
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{
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confkey = next;
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next = strchr(confkey, ',');
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if(next)
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{
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*next = 0;
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do {
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next++;
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} while(isspace(*next) || *next == ',');
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}
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// The W coefficients are based on a mathematical average of the
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// output. The square root of the base average provides for a more
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// perceptual average volume, better suited to non-directional gains.
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gains[i] = sqrtf(device->AmbiCoeffs[i][0]) * ingain;
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}
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for(;i < MAX_OUTPUT_CHANNELS;i++)
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gains[i] = 0.0f;
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}
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sep = strchr(confkey, '=');
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if(!sep || confkey == sep)
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void ComputeAngleGains(const ALCdevice *device, ALfloat angle, ALfloat elevation, ALfloat ingain, ALfloat gains[MAX_OUTPUT_CHANNELS])
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{
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ALfloat dir[3] = {
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sinf(angle) * cosf(elevation),
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sinf(elevation),
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-cosf(angle) * cosf(elevation)
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};
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ComputeDirectionalGains(device, dir, ingain, gains);
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}
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void ComputeDirectionalGains(const ALCdevice *device, const ALfloat dir[3], ALfloat ingain, ALfloat gains[MAX_OUTPUT_CHANNELS])
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{
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ALfloat coeffs[MAX_AMBI_COEFFS];
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ALuint i, j;
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/* Convert from OpenAL coords to Ambisonics. */
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ALfloat x = -dir[2];
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ALfloat y = -dir[0];
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ALfloat z = dir[1];
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/* Zeroth-order */
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coeffs[0] = 1.0f; /* ACN 0 = 1 */
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/* First-order */
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coeffs[1] = 1.732050808f * y; /* ACN 1 = sqrt(3) * Y */
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coeffs[2] = 1.732050808f * z; /* ACN 2 = sqrt(3) * Z */
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coeffs[3] = 1.732050808f * x; /* ACN 3 = sqrt(3) * X */
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/* Second-order */
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coeffs[4] = 3.872983346f * x * y; /* ACN 4 = sqrt(15) * X * Y */
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coeffs[5] = 3.872983346f * y * z; /* ACN 5 = sqrt(15) * Y * Z */
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coeffs[6] = 1.118033989f * (3.0f*z*z - 1.0f); /* ACN 6 = sqrt(5)/2 * (3*Z*Z - 1) */
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coeffs[7] = 3.872983346f * x * z; /* ACN 7 = sqrt(15) * X * Z */
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coeffs[8] = 1.936491673f * (x*x - y*y); /* ACN 8 = sqrt(15)/2 * (X*X - Y*Y) */
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/* Third-order */
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coeffs[9] = 2.091650066f * y * (3.0f*x*x - y*y); /* ACN 9 = sqrt(35/8) * Y * (3*X*X - Y*Y) */
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coeffs[10] = 10.246950766f * z * x * y; /* ACN 10 = sqrt(105) * Z * X * Y */
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coeffs[11] = 1.620185175f * y * (5.0f*z*z - 1.0f); /* ACN 11 = sqrt(21/8) * Y * (5*Z*Z - 1) */
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coeffs[12] = 1.322875656f * z * (5.0f*z*z - 3.0f); /* ACN 12 = sqrt(7)/2 * Z * (5*Z*Z - 3) */
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coeffs[13] = 1.620185175f * x * (5.0f*z*z - 1.0f); /* ACN 13 = sqrt(21/8) * X * (5*Z*Z - 1) */
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coeffs[14] = 5.123475383f * z * (x*x - y*y); /* ACN 14 = sqrt(105)/2 * Z * (X*X - Y*Y) */
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coeffs[15] = 2.091650066f * x * (x*x - 3.0f*y*y); /* ACN 15 = sqrt(35/8) * X * (X*X - 3*Y*Y) */
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for(i = 0;i < device->NumChannels;i++)
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{
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float gain = 0.0f;
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for(j = 0;j < MAX_AMBI_COEFFS;j++)
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gain += device->AmbiCoeffs[i][j]*coeffs[j];
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gains[i] = gain * ingain;
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}
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for(;i < MAX_OUTPUT_CHANNELS;i++)
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gains[i] = 0.0f;
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}
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void ComputeBFormatGains(const ALCdevice *device, const ALfloat mtx[4], ALfloat ingain, ALfloat gains[MAX_OUTPUT_CHANNELS])
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{
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ALuint i, j;
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for(i = 0;i < device->NumChannels;i++)
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{
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float gain = 0.0f;
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for(j = 0;j < 4;j++)
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gain += device->AmbiCoeffs[i][j] * mtx[j];
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gains[i] = gain * ingain;
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}
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for(;i < MAX_OUTPUT_CHANNELS;i++)
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gains[i] = 0.0f;
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}
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DECL_CONST static inline const char *GetLabelFromChannel(enum Channel channel)
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{
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switch(channel)
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{
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case FrontLeft: return "front-left";
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case FrontRight: return "front-right";
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case FrontCenter: return "front-center";
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case LFE: return "lfe";
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case BackLeft: return "back-left";
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case BackRight: return "back-right";
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case BackCenter: return "back-center";
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case SideLeft: return "side-left";
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case SideRight: return "side-right";
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case BFormatW: return "bformat-w";
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case BFormatX: return "bformat-x";
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case BFormatY: return "bformat-y";
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case BFormatZ: return "bformat-z";
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case InvalidChannel: break;
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}
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return "(unknown)";
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}
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typedef struct ChannelMap {
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enum Channel ChanName;
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ChannelConfig Config;
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} ChannelMap;
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static void SetChannelMap(ALCdevice *device, const ChannelMap *chanmap, size_t count, ALfloat ambiscale, ALboolean isfuma)
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{
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size_t j, k;
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ALuint i;
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device->AmbiScale = ambiscale;
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for(i = 0;i < MAX_OUTPUT_CHANNELS && device->ChannelName[i] != InvalidChannel;i++)
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{
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if(device->ChannelName[i] == LFE)
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{
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ERR("Malformed speaker key: %s\n", confkey);
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for(j = 0;j < MAX_AMBI_COEFFS;j++)
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device->AmbiCoeffs[i][j] = 0.0f;
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continue;
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}
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end = sep - 1;
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while(isspace(*end) && end != confkey)
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end--;
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*(++end) = 0;
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if(strcmp(confkey, "fl") == 0 || strcmp(confkey, "front-left") == 0)
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val = FrontLeft;
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else if(strcmp(confkey, "fr") == 0 || strcmp(confkey, "front-right") == 0)
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val = FrontRight;
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else if(strcmp(confkey, "fc") == 0 || strcmp(confkey, "front-center") == 0)
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val = FrontCenter;
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else if(strcmp(confkey, "bl") == 0 || strcmp(confkey, "back-left") == 0)
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val = BackLeft;
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else if(strcmp(confkey, "br") == 0 || strcmp(confkey, "back-right") == 0)
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val = BackRight;
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else if(strcmp(confkey, "bc") == 0 || strcmp(confkey, "back-center") == 0)
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val = BackCenter;
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else if(strcmp(confkey, "sl") == 0 || strcmp(confkey, "side-left") == 0)
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val = SideLeft;
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else if(strcmp(confkey, "sr") == 0 || strcmp(confkey, "side-right") == 0)
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val = SideRight;
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else
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for(j = 0;j < count;j++)
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{
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ERR("Unknown speaker for %s: \"%s\"\n", name, confkey);
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continue;
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}
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*(sep++) = 0;
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while(isspace(*sep))
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sep++;
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for(i = 0;i < chans;i++)
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{
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if(Speaker2Chan[i] == val)
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if(device->ChannelName[i] == chanmap[j].ChanName)
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{
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long angle = strtol(sep, NULL, 10);
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if(angle >= -180 && angle <= 180)
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SpeakerAngle[i] = DEG2RAD(angle);
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if(isfuma)
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{
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/* Reformat FuMa -> ACN/N3D */
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for(k = 0;k < MAX_AMBI_COEFFS;++k)
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{
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ALuint acn = FuMa2ACN[k];
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device->AmbiCoeffs[i][acn] = chanmap[j].Config[k] / FuMa2N3DScale[acn];
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}
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}
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else
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ERR("Invalid angle for speaker \"%s\": %ld\n", confkey, angle);
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{
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for(k = 0;k < MAX_AMBI_COEFFS;++k)
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device->AmbiCoeffs[i][k] = chanmap[j].Config[k];
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}
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break;
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}
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}
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if(j == count)
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ERR("Failed to match %s channel (%u) in config\n", GetLabelFromChannel(device->ChannelName[i]), i);
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}
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free(layout_str);
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layout_str = NULL;
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for(i = 0;i < chans;i++)
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{
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int min = i;
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int i2;
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for(i2 = i+1;i2 < chans;i2++)
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{
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if(SpeakerAngle[i2] < SpeakerAngle[min])
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min = i2;
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}
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if(min != i)
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{
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ALfloat tmpf;
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enum Channel tmpc;
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tmpf = SpeakerAngle[i];
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SpeakerAngle[i] = SpeakerAngle[min];
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SpeakerAngle[min] = tmpf;
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tmpc = Speaker2Chan[i];
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Speaker2Chan[i] = Speaker2Chan[min];
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Speaker2Chan[min] = tmpc;
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}
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}
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device->NumChannels = i;
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}
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void ComputeAngleGains(const ALCdevice *device, ALfloat angle, ALfloat hwidth, ALfloat ingain, ALfloat gains[MaxChannels])
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static bool LoadChannelSetup(ALCdevice *device)
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{
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ALfloat tmpgains[MaxChannels] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
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enum Channel Speaker2Chan[MaxChannels];
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ALfloat SpeakerAngle[MaxChannels];
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ALfloat langle, rangle;
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ALfloat a;
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ALuint i;
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static const enum Channel mono_chans[1] = {
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FrontCenter
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}, stereo_chans[2] = {
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FrontLeft, FrontRight
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}, quad_chans[4] = {
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FrontLeft, FrontRight,
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BackLeft, BackRight
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}, surround51_chans[5] = {
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FrontLeft, FrontRight, FrontCenter,
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SideLeft, SideRight
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}, surround51rear_chans[5] = {
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FrontLeft, FrontRight, FrontCenter,
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BackLeft, BackRight
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}, surround61_chans[6] = {
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FrontLeft, FrontRight,
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FrontCenter, BackCenter,
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SideLeft, SideRight
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}, surround71_chans[7] = {
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FrontLeft, FrontRight, FrontCenter,
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BackLeft, BackRight,
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SideLeft, SideRight
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};
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ChannelMap chanmap[MAX_OUTPUT_CHANNELS];
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const enum Channel *channels = NULL;
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const char *layout = NULL;
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ALfloat ambiscale = 1.0f;
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size_t count = 0;
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int isfuma;
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int order;
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size_t i;
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for(i = 0;i < device->NumChan;i++)
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Speaker2Chan[i] = device->Speaker2Chan[i];
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for(i = 0;i < device->NumChan;i++)
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SpeakerAngle[i] = device->SpeakerAngle[i];
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/* Some easy special-cases first... */
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if(device->NumChan <= 1 || hwidth >= F_PI)
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{
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/* Full coverage for all speakers. */
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for(i = 0;i < MaxChannels;i++)
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gains[i] = 0.0f;
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for(i = 0;i < device->NumChan;i++)
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{
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enum Channel chan = Speaker2Chan[i];
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gains[chan] = ingain;
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}
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return;
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}
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if(hwidth <= 0.0f)
|
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{
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/* Infinitely small sound point. */
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for(i = 0;i < MaxChannels;i++)
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gains[i] = 0.0f;
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for(i = 0;i < device->NumChan-1;i++)
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{
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if(angle >= SpeakerAngle[i] && angle < SpeakerAngle[i+1])
|
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{
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/* Sound is between speakers i and i+1 */
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a = (angle-SpeakerAngle[i]) /
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(SpeakerAngle[i+1]-SpeakerAngle[i]);
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gains[Speaker2Chan[i]] = sqrtf(1.0f-a) * ingain;
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gains[Speaker2Chan[i+1]] = sqrtf( a) * ingain;
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return;
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}
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}
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/* Sound is between last and first speakers */
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if(angle < SpeakerAngle[0])
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angle += F_2PI;
|
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a = (angle-SpeakerAngle[i]) /
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(F_2PI + SpeakerAngle[0]-SpeakerAngle[i]);
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gains[Speaker2Chan[i]] = sqrtf(1.0f-a) * ingain;
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gains[Speaker2Chan[0]] = sqrtf( a) * ingain;
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return;
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}
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if(fabsf(angle)+hwidth > F_PI)
|
||||
{
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||||
/* The coverage area would go outside of -pi...+pi. Instead, rotate the
|
||||
* speaker angles so it would be as if angle=0, and keep them wrapped
|
||||
* within -pi...+pi. */
|
||||
if(angle > 0.0f)
|
||||
{
|
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ALuint done;
|
||||
ALuint i = 0;
|
||||
while(i < device->NumChan && device->SpeakerAngle[i]-angle < -F_PI)
|
||||
i++;
|
||||
for(done = 0;i < device->NumChan;done++)
|
||||
{
|
||||
SpeakerAngle[done] = device->SpeakerAngle[i]-angle;
|
||||
Speaker2Chan[done] = device->Speaker2Chan[i];
|
||||
i++;
|
||||
}
|
||||
for(i = 0;done < device->NumChan;i++)
|
||||
{
|
||||
SpeakerAngle[done] = device->SpeakerAngle[i]-angle + F_2PI;
|
||||
Speaker2Chan[done] = device->Speaker2Chan[i];
|
||||
done++;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* NOTE: '< device->NumChan' on the iterators is correct here since
|
||||
* we need to handle index 0. Because the iterators are unsigned,
|
||||
* they'll underflow and wrap to become 0xFFFFFFFF, which will
|
||||
* break as expected. */
|
||||
ALuint done;
|
||||
ALuint i = device->NumChan-1;
|
||||
while(i < device->NumChan && device->SpeakerAngle[i]-angle > F_PI)
|
||||
i--;
|
||||
for(done = device->NumChan-1;i < device->NumChan;done--)
|
||||
{
|
||||
SpeakerAngle[done] = device->SpeakerAngle[i]-angle;
|
||||
Speaker2Chan[done] = device->Speaker2Chan[i];
|
||||
i--;
|
||||
}
|
||||
for(i = device->NumChan-1;done < device->NumChan;i--)
|
||||
{
|
||||
SpeakerAngle[done] = device->SpeakerAngle[i]-angle - F_2PI;
|
||||
Speaker2Chan[done] = device->Speaker2Chan[i];
|
||||
done--;
|
||||
}
|
||||
}
|
||||
angle = 0.0f;
|
||||
}
|
||||
langle = angle - hwidth;
|
||||
rangle = angle + hwidth;
|
||||
|
||||
/* First speaker */
|
||||
i = 0;
|
||||
do {
|
||||
ALuint last = device->NumChan-1;
|
||||
enum Channel chan = Speaker2Chan[i];
|
||||
|
||||
if(SpeakerAngle[i] >= langle && SpeakerAngle[i] <= rangle)
|
||||
{
|
||||
tmpgains[chan] = 1.0f;
|
||||
continue;
|
||||
}
|
||||
|
||||
if(SpeakerAngle[i] < langle && SpeakerAngle[i+1] > langle)
|
||||
{
|
||||
a = (langle-SpeakerAngle[i]) /
|
||||
(SpeakerAngle[i+1]-SpeakerAngle[i]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
||||
}
|
||||
if(SpeakerAngle[i] > rangle)
|
||||
{
|
||||
a = (F_2PI + rangle-SpeakerAngle[last]) /
|
||||
(F_2PI + SpeakerAngle[i]-SpeakerAngle[last]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
||||
}
|
||||
else if(SpeakerAngle[last] < rangle)
|
||||
{
|
||||
a = (rangle-SpeakerAngle[last]) /
|
||||
(F_2PI + SpeakerAngle[i]-SpeakerAngle[last]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
||||
}
|
||||
} while(0);
|
||||
|
||||
for(i = 1;i < device->NumChan-1;i++)
|
||||
{
|
||||
enum Channel chan = Speaker2Chan[i];
|
||||
if(SpeakerAngle[i] >= langle && SpeakerAngle[i] <= rangle)
|
||||
{
|
||||
tmpgains[chan] = 1.0f;
|
||||
continue;
|
||||
}
|
||||
|
||||
if(SpeakerAngle[i] < langle && SpeakerAngle[i+1] > langle)
|
||||
{
|
||||
a = (langle-SpeakerAngle[i]) /
|
||||
(SpeakerAngle[i+1]-SpeakerAngle[i]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
||||
}
|
||||
if(SpeakerAngle[i] > rangle && SpeakerAngle[i-1] < rangle)
|
||||
{
|
||||
a = (rangle-SpeakerAngle[i-1]) /
|
||||
(SpeakerAngle[i]-SpeakerAngle[i-1]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
||||
}
|
||||
}
|
||||
|
||||
/* Last speaker */
|
||||
i = device->NumChan-1;
|
||||
do {
|
||||
enum Channel chan = Speaker2Chan[i];
|
||||
if(SpeakerAngle[i] >= langle && SpeakerAngle[i] <= rangle)
|
||||
{
|
||||
tmpgains[Speaker2Chan[i]] = 1.0f;
|
||||
continue;
|
||||
}
|
||||
if(SpeakerAngle[i] > rangle && SpeakerAngle[i-1] < rangle)
|
||||
{
|
||||
a = (rangle-SpeakerAngle[i-1]) /
|
||||
(SpeakerAngle[i]-SpeakerAngle[i-1]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
||||
}
|
||||
if(SpeakerAngle[i] < langle)
|
||||
{
|
||||
a = (langle-SpeakerAngle[i]) /
|
||||
(F_2PI + SpeakerAngle[0]-SpeakerAngle[i]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
||||
}
|
||||
else if(SpeakerAngle[0] > langle)
|
||||
{
|
||||
a = (F_2PI + langle-SpeakerAngle[i]) /
|
||||
(F_2PI + SpeakerAngle[0]-SpeakerAngle[i]);
|
||||
tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
||||
}
|
||||
} while(0);
|
||||
|
||||
for(i = 0;i < device->NumChan;i++)
|
||||
{
|
||||
enum Channel chan = device->Speaker2Chan[i];
|
||||
gains[chan] = sqrtf(tmpgains[chan]) * ingain;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
ALvoid aluInitPanning(ALCdevice *Device)
|
||||
{
|
||||
const char *layoutname = NULL;
|
||||
enum Channel *Speaker2Chan;
|
||||
ALfloat *SpeakerAngle;
|
||||
|
||||
Speaker2Chan = Device->Speaker2Chan;
|
||||
SpeakerAngle = Device->SpeakerAngle;
|
||||
switch(Device->FmtChans)
|
||||
switch(device->FmtChans)
|
||||
{
|
||||
case DevFmtMono:
|
||||
Device->NumChan = 1;
|
||||
Speaker2Chan[0] = FrontCenter;
|
||||
SpeakerAngle[0] = DEG2RAD(0.0f);
|
||||
layoutname = NULL;
|
||||
layout = "mono";
|
||||
channels = mono_chans;
|
||||
count = COUNTOF(mono_chans);
|
||||
break;
|
||||
case DevFmtStereo:
|
||||
layout = "stereo";
|
||||
channels = stereo_chans;
|
||||
count = COUNTOF(stereo_chans);
|
||||
break;
|
||||
case DevFmtQuad:
|
||||
layout = "quad";
|
||||
channels = quad_chans;
|
||||
count = COUNTOF(quad_chans);
|
||||
break;
|
||||
case DevFmtX51:
|
||||
layout = "surround51";
|
||||
channels = surround51_chans;
|
||||
count = COUNTOF(surround51_chans);
|
||||
break;
|
||||
case DevFmtX51Rear:
|
||||
layout = "surround51rear";
|
||||
channels = surround51rear_chans;
|
||||
count = COUNTOF(surround51rear_chans);
|
||||
break;
|
||||
case DevFmtX61:
|
||||
layout = "surround61";
|
||||
channels = surround61_chans;
|
||||
count = COUNTOF(surround61_chans);
|
||||
break;
|
||||
case DevFmtX71:
|
||||
layout = "surround71";
|
||||
channels = surround71_chans;
|
||||
count = COUNTOF(surround71_chans);
|
||||
break;
|
||||
case DevFmtBFormat3D:
|
||||
break;
|
||||
}
|
||||
|
||||
if(!layout)
|
||||
return false;
|
||||
else
|
||||
{
|
||||
char name[32] = {0};
|
||||
const char *type;
|
||||
char eol;
|
||||
|
||||
snprintf(name, sizeof(name), "%s/type", layout);
|
||||
if(!ConfigValueStr(al_string_get_cstr(device->DeviceName), "layouts", name, &type))
|
||||
return false;
|
||||
|
||||
if(sscanf(type, " %31[^: ] : %d%c", name, &order, &eol) != 2)
|
||||
{
|
||||
ERR("Invalid type value '%s' (expected name:order) for layout %s\n", type, layout);
|
||||
return false;
|
||||
}
|
||||
|
||||
if(strcasecmp(name, "fuma") == 0)
|
||||
isfuma = 1;
|
||||
else if(strcasecmp(name, "n3d") == 0)
|
||||
isfuma = 0;
|
||||
else
|
||||
{
|
||||
ERR("Unhandled type name '%s' (expected FuMa or N3D) for layout %s\n", name, layout);
|
||||
return false;
|
||||
}
|
||||
|
||||
if(order == 3)
|
||||
ambiscale = THIRD_ORDER_SCALE;
|
||||
else if(order == 2)
|
||||
ambiscale = SECOND_ORDER_SCALE;
|
||||
else if(order == 1)
|
||||
ambiscale = FIRST_ORDER_SCALE;
|
||||
else if(order == 0)
|
||||
ambiscale = ZERO_ORDER_SCALE;
|
||||
else
|
||||
{
|
||||
ERR("Unhandled type order %d (expected 0, 1, 2, or 3) for layout %s\n", order, layout);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
for(i = 0;i < count;i++)
|
||||
{
|
||||
float coeffs[MAX_AMBI_COEFFS] = {0.0f};
|
||||
const char *channame;
|
||||
char chanlayout[32];
|
||||
const char *value;
|
||||
int props = 0;
|
||||
char eol = 0;
|
||||
int j;
|
||||
|
||||
chanmap[i].ChanName = channels[i];
|
||||
channame = GetLabelFromChannel(channels[i]);
|
||||
|
||||
snprintf(chanlayout, sizeof(chanlayout), "%s/%s", layout, channame);
|
||||
if(!ConfigValueStr(al_string_get_cstr(device->DeviceName), "layouts", chanlayout, &value))
|
||||
{
|
||||
ERR("Missing channel %s\n", channame);
|
||||
return false;
|
||||
}
|
||||
if(order == 3)
|
||||
props = sscanf(value, " %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %c",
|
||||
&coeffs[0], &coeffs[1], &coeffs[2], &coeffs[3],
|
||||
&coeffs[4], &coeffs[5], &coeffs[6], &coeffs[7],
|
||||
&coeffs[8], &coeffs[9], &coeffs[10], &coeffs[11],
|
||||
&coeffs[12], &coeffs[13], &coeffs[14], &coeffs[15],
|
||||
&eol
|
||||
);
|
||||
else if(order == 2)
|
||||
props = sscanf(value, " %f %f %f %f %f %f %f %f %f %c",
|
||||
&coeffs[0], &coeffs[1], &coeffs[2],
|
||||
&coeffs[3], &coeffs[4], &coeffs[5],
|
||||
&coeffs[6], &coeffs[7], &coeffs[8],
|
||||
&eol
|
||||
);
|
||||
else if(order == 1)
|
||||
props = sscanf(value, " %f %f %f %f %c",
|
||||
&coeffs[0], &coeffs[1],
|
||||
&coeffs[2], &coeffs[3],
|
||||
&eol
|
||||
);
|
||||
else if(order == 0)
|
||||
props = sscanf(value, " %f %c", &coeffs[0], &eol);
|
||||
if(props == 0)
|
||||
{
|
||||
ERR("Failed to parse option %s properties\n", chanlayout);
|
||||
return false;
|
||||
}
|
||||
|
||||
if(props > (order+1)*(order+1))
|
||||
{
|
||||
ERR("Excess elements in option %s (expected %d)\n", chanlayout, (order+1)*(order+1));
|
||||
return false;
|
||||
}
|
||||
|
||||
for(j = 0;j < MAX_AMBI_COEFFS;++j)
|
||||
chanmap[i].Config[j] = coeffs[j];
|
||||
}
|
||||
SetChannelMap(device, chanmap, count, ambiscale, isfuma);
|
||||
return true;
|
||||
}
|
||||
|
||||
ALvoid aluInitPanning(ALCdevice *device)
|
||||
{
|
||||
/* NOTE: These decoder coefficients are using FuMa channel ordering and
|
||||
* normalization, since that's what was produced by the Ambisonic Decoder
|
||||
* Toolbox. SetChannelMap will convert them to N3D.
|
||||
*/
|
||||
static const ChannelMap MonoCfg[1] = {
|
||||
{ FrontCenter, { 1.414213562f } },
|
||||
}, StereoCfg[2] = {
|
||||
{ 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 } },
|
||||
{ BackLeft, { 0.353553f, -0.306184f, 0.306184f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.117186f } },
|
||||
{ BackRight, { 0.353553f, -0.306184f, -0.306184f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.117186f } },
|
||||
}, X51SideCfg[5] = {
|
||||
{ FrontLeft, { 0.208954f, 0.212846f, 0.238350f, 0.0f, 0.0f, 0.0f, 0.0f, -0.017738f, 0.204014f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.051023f, 0.047490f } },
|
||||
{ FrontRight, { 0.208954f, 0.212846f, -0.238350f, 0.0f, 0.0f, 0.0f, 0.0f, -0.017738f, -0.204014f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.051023f, -0.047490f } },
|
||||
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
|
||||
{ SideLeft, { 0.470936f, -0.369626f, 0.349386f, 0.0f, 0.0f, 0.0f, 0.0f, -0.031375f, -0.058144f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.007119f, -0.043968f } },
|
||||
{ SideRight, { 0.470936f, -0.369626f, -0.349386f, 0.0f, 0.0f, 0.0f, 0.0f, -0.031375f, 0.058144f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.007119f, 0.043968f } },
|
||||
}, X51RearCfg[5] = {
|
||||
{ FrontLeft, { 0.208954f, 0.212846f, 0.238350f, 0.0f, 0.0f, 0.0f, 0.0f, -0.017738f, 0.204014f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.051023f, 0.047490f } },
|
||||
{ FrontRight, { 0.208954f, 0.212846f, -0.238350f, 0.0f, 0.0f, 0.0f, 0.0f, -0.017738f, -0.204014f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.051023f, -0.047490f } },
|
||||
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
|
||||
{ BackLeft, { 0.470936f, -0.369626f, 0.349386f, 0.0f, 0.0f, 0.0f, 0.0f, -0.031375f, -0.058144f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.007119f, -0.043968f } },
|
||||
{ BackRight, { 0.470936f, -0.369626f, -0.349386f, 0.0f, 0.0f, 0.0f, 0.0f, -0.031375f, 0.058144f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.007119f, 0.043968f } },
|
||||
}, X61Cfg[6] = {
|
||||
{ FrontLeft, { 0.167065f, 0.200583f, 0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, 0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, 0.068910f } },
|
||||
{ FrontRight, { 0.167065f, 0.200583f, -0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, -0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, -0.068910f } },
|
||||
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
|
||||
{ BackCenter, { 0.353556f, -0.461940f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.165723f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.000000f } },
|
||||
{ SideLeft, { 0.289151f, -0.081301f, 0.401292f, 0.0f, 0.0f, 0.0f, 0.0f, -0.188208f, -0.071420f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.010099f, -0.032897f } },
|
||||
{ SideRight, { 0.289151f, -0.081301f, -0.401292f, 0.0f, 0.0f, 0.0f, 0.0f, -0.188208f, 0.071420f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.010099f, 0.032897f } },
|
||||
}, X71Cfg[7] = {
|
||||
{ FrontLeft, { 0.167065f, 0.200583f, 0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, 0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, 0.068910f } },
|
||||
{ FrontRight, { 0.167065f, 0.200583f, -0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, -0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, -0.068910f } },
|
||||
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
|
||||
{ BackLeft, { 0.224752f, -0.295009f, 0.170325f, 0.0f, 0.0f, 0.0f, 0.0f, 0.105349f, -0.182473f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.065799f } },
|
||||
{ BackRight, { 0.224752f, -0.295009f, -0.170325f, 0.0f, 0.0f, 0.0f, 0.0f, 0.105349f, 0.182473f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.065799f } },
|
||||
{ SideLeft, { 0.224739f, 0.000000f, 0.340644f, 0.0f, 0.0f, 0.0f, 0.0f, -0.210697f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.065795f } },
|
||||
{ SideRight, { 0.224739f, 0.000000f, -0.340644f, 0.0f, 0.0f, 0.0f, 0.0f, -0.210697f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.065795f } },
|
||||
}, BFormat3D[4] = {
|
||||
{ BFormatW, { 1.0f, 0.0f, 0.0f, 0.0f } },
|
||||
{ BFormatX, { 0.0f, 1.0f, 0.0f, 0.0f } },
|
||||
{ BFormatY, { 0.0f, 0.0f, 1.0f, 0.0f } },
|
||||
{ BFormatZ, { 0.0f, 0.0f, 0.0f, 1.0f } },
|
||||
};
|
||||
const ChannelMap *chanmap = NULL;
|
||||
ALfloat ambiscale = 1.0f;
|
||||
size_t count = 0;
|
||||
|
||||
device->AmbiScale = 1.0f;
|
||||
memset(device->AmbiCoeffs, 0, sizeof(device->AmbiCoeffs));
|
||||
device->NumChannels = 0;
|
||||
|
||||
if(device->Hrtf)
|
||||
{
|
||||
ALfloat (*coeffs_list[4])[2];
|
||||
ALuint *delay_list[4];
|
||||
ALuint i;
|
||||
|
||||
count = COUNTOF(BFormat3D);
|
||||
chanmap = BFormat3D;
|
||||
ambiscale = 1.0f;
|
||||
|
||||
for(i = 0;i < count;i++)
|
||||
device->ChannelName[i] = chanmap[i].ChanName;
|
||||
for(;i < MAX_OUTPUT_CHANNELS;i++)
|
||||
device->ChannelName[i] = InvalidChannel;
|
||||
SetChannelMap(device, chanmap, count, ambiscale, AL_TRUE);
|
||||
|
||||
for(i = 0;i < 4;++i)
|
||||
{
|
||||
static const enum Channel inputs[4] = { BFormatW, BFormatX, BFormatY, BFormatZ };
|
||||
int chan = GetChannelIdxByName(device, inputs[i]);
|
||||
coeffs_list[i] = device->Hrtf_Params[chan].Coeffs;
|
||||
delay_list[i] = device->Hrtf_Params[chan].Delay;
|
||||
}
|
||||
GetBFormatHrtfCoeffs(device->Hrtf, 4, coeffs_list, delay_list);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
if(LoadChannelSetup(device))
|
||||
return;
|
||||
|
||||
switch(device->FmtChans)
|
||||
{
|
||||
case DevFmtMono:
|
||||
count = COUNTOF(MonoCfg);
|
||||
chanmap = MonoCfg;
|
||||
ambiscale = ZERO_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtStereo:
|
||||
Device->NumChan = 2;
|
||||
Speaker2Chan[0] = FrontLeft;
|
||||
Speaker2Chan[1] = FrontRight;
|
||||
SpeakerAngle[0] = DEG2RAD(-90.0f);
|
||||
SpeakerAngle[1] = DEG2RAD( 90.0f);
|
||||
layoutname = "layout_stereo";
|
||||
count = COUNTOF(StereoCfg);
|
||||
chanmap = StereoCfg;
|
||||
ambiscale = FIRST_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtQuad:
|
||||
Device->NumChan = 4;
|
||||
Speaker2Chan[0] = BackLeft;
|
||||
Speaker2Chan[1] = FrontLeft;
|
||||
Speaker2Chan[2] = FrontRight;
|
||||
Speaker2Chan[3] = BackRight;
|
||||
SpeakerAngle[0] = DEG2RAD(-135.0f);
|
||||
SpeakerAngle[1] = DEG2RAD( -45.0f);
|
||||
SpeakerAngle[2] = DEG2RAD( 45.0f);
|
||||
SpeakerAngle[3] = DEG2RAD( 135.0f);
|
||||
layoutname = "layout_quad";
|
||||
count = COUNTOF(QuadCfg);
|
||||
chanmap = QuadCfg;
|
||||
ambiscale = SECOND_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtX51:
|
||||
Device->NumChan = 5;
|
||||
Speaker2Chan[0] = BackLeft;
|
||||
Speaker2Chan[1] = FrontLeft;
|
||||
Speaker2Chan[2] = FrontCenter;
|
||||
Speaker2Chan[3] = FrontRight;
|
||||
Speaker2Chan[4] = BackRight;
|
||||
SpeakerAngle[0] = DEG2RAD(-110.0f);
|
||||
SpeakerAngle[1] = DEG2RAD( -30.0f);
|
||||
SpeakerAngle[2] = DEG2RAD( 0.0f);
|
||||
SpeakerAngle[3] = DEG2RAD( 30.0f);
|
||||
SpeakerAngle[4] = DEG2RAD( 110.0f);
|
||||
layoutname = "layout_surround51";
|
||||
count = COUNTOF(X51SideCfg);
|
||||
chanmap = X51SideCfg;
|
||||
ambiscale = THIRD_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtX51Side:
|
||||
Device->NumChan = 5;
|
||||
Speaker2Chan[0] = SideLeft;
|
||||
Speaker2Chan[1] = FrontLeft;
|
||||
Speaker2Chan[2] = FrontCenter;
|
||||
Speaker2Chan[3] = FrontRight;
|
||||
Speaker2Chan[4] = SideRight;
|
||||
SpeakerAngle[0] = DEG2RAD(-90.0f);
|
||||
SpeakerAngle[1] = DEG2RAD(-30.0f);
|
||||
SpeakerAngle[2] = DEG2RAD( 0.0f);
|
||||
SpeakerAngle[3] = DEG2RAD( 30.0f);
|
||||
SpeakerAngle[4] = DEG2RAD( 90.0f);
|
||||
layoutname = "layout_side51";
|
||||
case DevFmtX51Rear:
|
||||
count = COUNTOF(X51RearCfg);
|
||||
chanmap = X51RearCfg;
|
||||
ambiscale = THIRD_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtX61:
|
||||
Device->NumChan = 6;
|
||||
Speaker2Chan[0] = SideLeft;
|
||||
Speaker2Chan[1] = FrontLeft;
|
||||
Speaker2Chan[2] = FrontCenter;
|
||||
Speaker2Chan[3] = FrontRight;
|
||||
Speaker2Chan[4] = SideRight;
|
||||
Speaker2Chan[5] = BackCenter;
|
||||
SpeakerAngle[0] = DEG2RAD(-90.0f);
|
||||
SpeakerAngle[1] = DEG2RAD(-30.0f);
|
||||
SpeakerAngle[2] = DEG2RAD( 0.0f);
|
||||
SpeakerAngle[3] = DEG2RAD( 30.0f);
|
||||
SpeakerAngle[4] = DEG2RAD( 90.0f);
|
||||
SpeakerAngle[5] = DEG2RAD(180.0f);
|
||||
layoutname = "layout_surround61";
|
||||
count = COUNTOF(X61Cfg);
|
||||
chanmap = X61Cfg;
|
||||
ambiscale = THIRD_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtX71:
|
||||
Device->NumChan = 7;
|
||||
Speaker2Chan[0] = BackLeft;
|
||||
Speaker2Chan[1] = SideLeft;
|
||||
Speaker2Chan[2] = FrontLeft;
|
||||
Speaker2Chan[3] = FrontCenter;
|
||||
Speaker2Chan[4] = FrontRight;
|
||||
Speaker2Chan[5] = SideRight;
|
||||
Speaker2Chan[6] = BackRight;
|
||||
SpeakerAngle[0] = DEG2RAD(-150.0f);
|
||||
SpeakerAngle[1] = DEG2RAD( -90.0f);
|
||||
SpeakerAngle[2] = DEG2RAD( -30.0f);
|
||||
SpeakerAngle[3] = DEG2RAD( 0.0f);
|
||||
SpeakerAngle[4] = DEG2RAD( 30.0f);
|
||||
SpeakerAngle[5] = DEG2RAD( 90.0f);
|
||||
SpeakerAngle[6] = DEG2RAD( 150.0f);
|
||||
layoutname = "layout_surround71";
|
||||
count = COUNTOF(X71Cfg);
|
||||
chanmap = X71Cfg;
|
||||
ambiscale = THIRD_ORDER_SCALE;
|
||||
break;
|
||||
|
||||
case DevFmtBFormat3D:
|
||||
count = COUNTOF(BFormat3D);
|
||||
chanmap = BFormat3D;
|
||||
ambiscale = 1.0f;
|
||||
break;
|
||||
}
|
||||
if(layoutname && Device->Type != Loopback)
|
||||
SetSpeakerArrangement(layoutname, SpeakerAngle, Speaker2Chan, Device->NumChan);
|
||||
|
||||
SetChannelMap(device, chanmap, count, ambiscale, AL_TRUE);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user