diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/speex/ltp_bfin.h')
| -rw-r--r-- | pjmedia/src/pjmedia-codec/speex/ltp_bfin.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-codec/speex/ltp_bfin.h b/pjmedia/src/pjmedia-codec/speex/ltp_bfin.h new file mode 100644 index 00000000..e92dbe2a --- /dev/null +++ b/pjmedia/src/pjmedia-codec/speex/ltp_bfin.h @@ -0,0 +1,165 @@ +/* Copyright (C) 2005 Analog Devices */ +/** + @file ltp_bfin.h + @author Jean-Marc Valin + @brief Long-Term Prediction functions (Blackfin version) +*/ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + - Neither the name of the Xiph.org Foundation nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#define OVERRIDE_INNER_PROD +static spx_word32_t inner_prod(const spx_word16_t *x, const spx_word16_t *y, int len) +{ + spx_word32_t sum=0; + __asm__ __volatile__ ( + "P0 = %3;\n\t" + "P1 = %1;\n\t" + "P2 = %2;\n\t" + "I0 = P1;\n\t" + "I1 = P2;\n\t" + "L0 = 0;\n\t" + "L1 = 0;\n\t" + "A0 = 0;\n\t" + "R0.L = W[I0++] || R1.L = W[I1++];\n\t" + "LOOP inner%= LC0 = P0;\n\t" + "LOOP_BEGIN inner%=;\n\t" + "A0 += R0.L*R1.L (IS) || R0.L = W[I0++] || R1.L = W[I1++];\n\t" + "LOOP_END inner%=;\n\t" + "A0 += R0.L*R1.L (IS);\n\t" + "A0 = A0 >>> 6;\n\t" + "R0 = A0;\n\t" + "%0 = R0;\n\t" + : "=m" (sum) + : "m" (x), "m" (y), "d" (len-1) + : "P0", "P1", "P2", "R0", "R1", "A0", "I0", "I1", "L0", "L1", "R3" + ); + return sum; +} + +#define OVERRIDE_PITCH_XCORR +static void pitch_xcorr(const spx_word16_t *_x, const spx_word16_t *_y, spx_word32_t *corr, int len, int nb_pitch, char *stack) +{ + corr += nb_pitch - 1; + __asm__ __volatile__ ( + "P2 = %0;\n\t" + "I0 = P2;\n\t" /* x in I0 */ + "B0 = P2;\n\t" /* x in B0 */ + "R0 = %3;\n\t" /* len in R0 */ + "P3 = %3;\n\t" + "P3 += -2;\n\t" /* len in R0 */ + "P4 = %4;\n\t" /* nb_pitch in R0 */ + "R1 = R0 << 1;\n\t" /* number of bytes in x */ + "L0 = R1;\n\t" + "P0 = %1;\n\t" + + "P1 = %2;\n\t" + "B1 = P1;\n\t" + "L1 = 0;\n\t" /*Disable looping on I1*/ + + "r0 = [I0++];\n\t" + "LOOP pitch%= LC0 = P4 >> 1;\n\t" + "LOOP_BEGIN pitch%=;\n\t" + "I1 = P0;\n\t" + "A1 = A0 = 0;\n\t" + "R1 = [I1++];\n\t" + "LOOP inner_prod%= LC1 = P3 >> 1;\n\t" + "LOOP_BEGIN inner_prod%=;\n\t" + "A1 += R0.L*R1.H, A0 += R0.L*R1.L (IS) || R1.L = W[I1++];\n\t" + "A1 += R0.H*R1.L, A0 += R0.H*R1.H (IS) || R1.H = W[I1++] || R0 = [I0++];\n\t" + "LOOP_END inner_prod%=;\n\t" + "A1 += R0.L*R1.H, A0 += R0.L*R1.L (IS) || R1.L = W[I1++];\n\t" + "A1 += R0.H*R1.L, A0 += R0.H*R1.H (IS) || R0 = [I0++];\n\t" + "A0 = A0 >>> 6;\n\t" + "A1 = A1 >>> 6;\n\t" + "R2 = A0, R3 = A1;\n\t" + "[P1--] = r2;\n\t" + "[P1--] = r3;\n\t" + "P0 += 4;\n\t" + "LOOP_END pitch%=;\n\t" + "L0 = 0;\n\t" + : : "m" (_x), "m" (_y), "m" (corr), "m" (len), "m" (nb_pitch) + : "A0", "A1", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "R3", "I0", "I1", "L0", "L1", "B0", "B1", "memory" + ); +} + +#define OVERRIDE_COMPUTE_PITCH_ERROR +static inline spx_word32_t compute_pitch_error(spx_word32_t *C, spx_word16_t *g, spx_word16_t pitch_control) +{ + spx_word32_t sum; + __asm__ __volatile__ + ( + "A1 = A0 = 0;\n\t" + + "R0 = [%1++];\n\t" + "R1.L = %2.L*%5.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 += R1.L*R0.L (M), A0 += R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %3.L*%5.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 += R1.L*R0.L (M), A0 += R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %4.L*%5.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 += R1.L*R0.L (M), A0 += R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %2.L*%3.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %4.L*%3.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %4.L*%2.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %2.L*%2.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %3.L*%3.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS) || R0 = [%1++];\n\t" + + "R1.L = %4.L*%4.L (IS);\n\t" + "R0 <<= 1;\n\t" + "A1 -= R1.L*R0.L (M), A0 -= R1.L*R0.H (IS);\n\t" + + "A1 = A1 >>> 16;\n\t" + "A0 += A1;\n\t" + "%0 = A0;\n\t" + : "=&D" (sum), "=a" (C) + : "d" (g[0]), "d" (g[1]), "d" (g[2]), "d" (pitch_control), "1" (C) + : "R0", "R1", "R2", "A0" + ); + return sum; +} + |