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@@ -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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-
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-extern inline void SetGains(const ALCdevice *device, ALfloat ingain, ALfloat gains[MaxChannels]);
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-
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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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+#include "bool.h"
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+
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+
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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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+
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+
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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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+
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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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+
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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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-
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- if(!ConfigValueStr(NULL, name, &str) && !ConfigValueStr(NULL, "layout", &str))
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- return;
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+ ALuint i;
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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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-
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- sep = strchr(confkey, '=');
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- if(!sep || confkey == sep)
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- {
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- ERR("Malformed speaker key: %s\n", confkey);
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- continue;
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- }
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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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-
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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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- {
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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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-
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- *(sep++) = 0;
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- while(isspace(*sep))
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- sep++;
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-
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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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- {
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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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- else
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- ERR("Invalid angle for speaker \"%s\": %ld\n", confkey, angle);
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- break;
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- }
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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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- free(layout_str);
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- layout_str = NULL;
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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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- for(i = 0;i < chans;i++)
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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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+
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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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+
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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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+
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+ for(i = 0;i < device->NumChannels;i++)
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{
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- int min = i;
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- int i2;
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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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- 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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+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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- if(min != i)
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- {
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- ALfloat tmpf;
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- enum Channel tmpc;
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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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- 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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+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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+
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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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+
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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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-void ComputeAngleGains(const ALCdevice *device, ALfloat angle, ALfloat hwidth, ALfloat ingain, ALfloat gains[MaxChannels])
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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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+
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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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- 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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+ size_t j, k;
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ALuint 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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-
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- /* Some easy special-cases first... */
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- if(device->NumChan <= 1 || hwidth >= F_PI)
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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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- /* 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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+ if(device->ChannelName[i] == LFE)
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{
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- enum Channel chan = Speaker2Chan[i];
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- gains[chan] = ingain;
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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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- 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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+ for(j = 0;j < count;j++)
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{
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- if(angle >= SpeakerAngle[i] && angle < SpeakerAngle[i+1])
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+ if(device->ChannelName[i] == chanmap[j].ChanName)
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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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+ 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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+ {
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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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- /* 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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+ 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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+ device->NumChannels = i;
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+}
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- if(fabsf(angle)+hwidth > F_PI)
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+static bool LoadChannelSetup(ALCdevice *device)
|
|
|
+{
|
|
|
+ static const enum Channel mono_chans[1] = {
|
|
|
+ FrontCenter
|
|
|
+ }, stereo_chans[2] = {
|
|
|
+ FrontLeft, FrontRight
|
|
|
+ }, quad_chans[4] = {
|
|
|
+ FrontLeft, FrontRight,
|
|
|
+ BackLeft, BackRight
|
|
|
+ }, surround51_chans[5] = {
|
|
|
+ FrontLeft, FrontRight, FrontCenter,
|
|
|
+ SideLeft, SideRight
|
|
|
+ }, surround51rear_chans[5] = {
|
|
|
+ FrontLeft, FrontRight, FrontCenter,
|
|
|
+ BackLeft, BackRight
|
|
|
+ }, surround61_chans[6] = {
|
|
|
+ FrontLeft, FrontRight,
|
|
|
+ FrontCenter, BackCenter,
|
|
|
+ SideLeft, SideRight
|
|
|
+ }, surround71_chans[7] = {
|
|
|
+ FrontLeft, FrontRight, FrontCenter,
|
|
|
+ BackLeft, BackRight,
|
|
|
+ SideLeft, SideRight
|
|
|
+ };
|
|
|
+ ChannelMap chanmap[MAX_OUTPUT_CHANNELS];
|
|
|
+ const enum Channel *channels = NULL;
|
|
|
+ const char *layout = NULL;
|
|
|
+ ALfloat ambiscale = 1.0f;
|
|
|
+ size_t count = 0;
|
|
|
+ int isfuma;
|
|
|
+ int order;
|
|
|
+ size_t i;
|
|
|
+
|
|
|
+ switch(device->FmtChans)
|
|
|
{
|
|
|
- /* 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)
|
|
|
- {
|
|
|
- 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;
|
|
|
+ case DevFmtMono:
|
|
|
+ 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;
|
|
|
}
|
|
|
- langle = angle - hwidth;
|
|
|
- rangle = angle + hwidth;
|
|
|
|
|
|
- /* First speaker */
|
|
|
- i = 0;
|
|
|
- do {
|
|
|
- ALuint last = device->NumChan-1;
|
|
|
- enum Channel chan = Speaker2Chan[i];
|
|
|
+ if(!layout)
|
|
|
+ return false;
|
|
|
+ else
|
|
|
+ {
|
|
|
+ char name[32] = {0};
|
|
|
+ const char *type;
|
|
|
+ char eol;
|
|
|
|
|
|
- if(SpeakerAngle[i] >= langle && SpeakerAngle[i] <= rangle)
|
|
|
- {
|
|
|
- tmpgains[chan] = 1.0f;
|
|
|
- continue;
|
|
|
- }
|
|
|
+ snprintf(name, sizeof(name), "%s/type", layout);
|
|
|
+ if(!ConfigValueStr(al_string_get_cstr(device->DeviceName), "layouts", name, &type))
|
|
|
+ return false;
|
|
|
|
|
|
- if(SpeakerAngle[i] < langle && SpeakerAngle[i+1] > langle)
|
|
|
+ if(sscanf(type, " %31[^: ] : %d%c", name, &order, &eol) != 2)
|
|
|
{
|
|
|
- a = (langle-SpeakerAngle[i]) /
|
|
|
- (SpeakerAngle[i+1]-SpeakerAngle[i]);
|
|
|
- tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
|
|
+ ERR("Invalid type value '%s' (expected name:order) for layout %s\n", type, layout);
|
|
|
+ return false;
|
|
|
}
|
|
|
- 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)
|
|
|
+ if(strcasecmp(name, "fuma") == 0)
|
|
|
+ isfuma = 1;
|
|
|
+ else if(strcasecmp(name, "n3d") == 0)
|
|
|
+ isfuma = 0;
|
|
|
+ else
|
|
|
{
|
|
|
- tmpgains[chan] = 1.0f;
|
|
|
- continue;
|
|
|
+ ERR("Unhandled type name '%s' (expected FuMa or N3D) for layout %s\n", name, layout);
|
|
|
+ return false;
|
|
|
}
|
|
|
|
|
|
- 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)
|
|
|
+ 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
|
|
|
{
|
|
|
- a = (rangle-SpeakerAngle[i-1]) /
|
|
|
- (SpeakerAngle[i]-SpeakerAngle[i-1]);
|
|
|
- tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
|
|
+ ERR("Unhandled type order %d (expected 0, 1, 2, or 3) for layout %s\n", order, layout);
|
|
|
+ return false;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
- /* 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)
|
|
|
+ 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))
|
|
|
{
|
|
|
- a = (rangle-SpeakerAngle[i-1]) /
|
|
|
- (SpeakerAngle[i]-SpeakerAngle[i-1]);
|
|
|
- tmpgains[chan] = lerp(tmpgains[chan], 1.0f, a);
|
|
|
+ ERR("Missing channel %s\n", channame);
|
|
|
+ return false;
|
|
|
}
|
|
|
- if(SpeakerAngle[i] < langle)
|
|
|
+ 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)
|
|
|
{
|
|
|
- a = (langle-SpeakerAngle[i]) /
|
|
|
- (F_2PI + SpeakerAngle[0]-SpeakerAngle[i]);
|
|
|
- tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
|
|
+ ERR("Failed to parse option %s properties\n", chanlayout);
|
|
|
+ return false;
|
|
|
}
|
|
|
- else if(SpeakerAngle[0] > langle)
|
|
|
+
|
|
|
+ if(props > (order+1)*(order+1))
|
|
|
{
|
|
|
- a = (F_2PI + langle-SpeakerAngle[i]) /
|
|
|
- (F_2PI + SpeakerAngle[0]-SpeakerAngle[i]);
|
|
|
- tmpgains[chan] = lerp(tmpgains[chan], 1.0f, 1.0f-a);
|
|
|
+ ERR("Excess elements in option %s (expected %d)\n", chanlayout, (order+1)*(order+1));
|
|
|
+ return false;
|
|
|
}
|
|
|
- } while(0);
|
|
|
|
|
|
- for(i = 0;i < device->NumChan;i++)
|
|
|
- {
|
|
|
- enum Channel chan = device->Speaker2Chan[i];
|
|
|
- gains[chan] = sqrtf(tmpgains[chan]) * ingain;
|
|
|
+ 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)
|
|
|
+ALvoid aluInitPanning(ALCdevice *device)
|
|
|
{
|
|
|
- const char *layoutname = NULL;
|
|
|
- enum Channel *Speaker2Chan;
|
|
|
- ALfloat *SpeakerAngle;
|
|
|
+ /* 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;
|
|
|
|
|
|
- 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;
|
|
|
+ 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);
|
|
|
}
|