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Diffstat (limited to 'libavcodec/mips/mpegvideo_mmi.c')
-rw-r--r--libavcodec/mips/mpegvideo_mmi.c303
1 files changed, 303 insertions, 0 deletions
diff --git a/libavcodec/mips/mpegvideo_mmi.c b/libavcodec/mips/mpegvideo_mmi.c
new file mode 100644
index 0000000000..c8b1e168dd
--- /dev/null
+++ b/libavcodec/mips/mpegvideo_mmi.c
@@ -0,0 +1,303 @@
+/*
+ * Loongson SIMD optimized mpegvideo
+ *
+ * Copyright (c) 2015 Loongson Technology Corporation Limited
+ * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
+ * Zhang Shuangshuang <zhangshuangshuang@ict.ac.cn>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "mpegvideo_mips.h"
+
+void ff_dct_unquantize_h263_intra_mmi(MpegEncContext *s, int16_t *block,
+ int n, int qscale)
+{
+ int64_t level, qmul, qadd, nCoeffs;
+
+ qmul = qscale << 1;
+ av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
+
+ if (!s->h263_aic) {
+ if (n<4)
+ level = block[0] * s->y_dc_scale;
+ else
+ level = block[0] * s->c_dc_scale;
+ qadd = (qscale-1) | 1;
+ } else {
+ qadd = 0;
+ level = block[0];
+ }
+
+ if(s->ac_pred)
+ nCoeffs = 63;
+ else
+ nCoeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
+
+ __asm__ volatile (
+ "xor $f12, $f12, $f12 \r\n"
+ "lwc1 $f12, %1 \n\r"
+ "xor $f10, $f10, $f10 \r\n"
+ "lwc1 $f10, %2 \r\n"
+ "xor $f14, $f14, $f14 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "packsswh $f10, $f10, $f10 \r\n"
+ "packsswh $f10, $f10, $f10 \r\n"
+ "psubh $f14, $f14, $f10 \r\n"
+ "xor $f8, $f8, $f8 \r\n"
+ ".p2align 4 \r\n"
+ "1: \r\n"
+ "daddu $8, %0, %3 \r\n"
+ "gsldlc1 $f0, 7($8) \r\n"
+ "gsldrc1 $f0, 0($8) \r\n"
+ "gsldlc1 $f2, 15($8) \r\n"
+ "gsldrc1 $f2, 8($8) \r\n"
+ "mov.d $f4, $f0 \r\n"
+ "mov.d $f6, $f2 \r\n"
+ "pmullh $f0, $f0, $f12 \r\n"
+ "pmullh $f2, $f2, $f12 \r\n"
+ "pcmpgth $f4, $f4, $f8 \r\n"
+ "pcmpgth $f6, $f6, $f8 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "paddh $f0, $f0, $f14 \r\n"
+ "paddh $f2, $f2, $f14 \r\n"
+ "xor $f4, $f4, $f0 \r\n"
+ "xor $f6, $f6, $f2 \r\n"
+ "pcmpeqh $f0, $f0, $f14 \r\n"
+ "pcmpeqh $f2, $f2, $f14 \r\n"
+ "pandn $f0, $f0, $f4 \r\n"
+ "pandn $f2, $f2, $f6 \r\n"
+ "gssdlc1 $f0, 7($8) \r\n"
+ "gssdrc1 $f0, 0($8) \r\n"
+ "gssdlc1 $f2, 15($8) \r\n"
+ "gssdrc1 $f2, 8($8) \r\n"
+ "addi %3, %3, 16 \r\n"
+ "blez %3, 1b \r\n"
+ ::"r"(block+nCoeffs),"m"(qmul),"m"(qadd),"r"(2*(-nCoeffs))
+ :"$8","memory"
+ );
+
+ block[0] = level;
+}
+
+void ff_dct_unquantize_h263_inter_mmi(MpegEncContext *s, int16_t *block,
+ int n, int qscale)
+{
+ int64_t qmul, qadd, nCoeffs;
+
+ qmul = qscale << 1;
+ qadd = (qscale - 1) | 1;
+ av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
+ nCoeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
+
+ __asm__ volatile (
+ "xor $f12, $f12, $f12 \r\n"
+ "lwc1 $f12, %1 \r\n"
+ "xor $f10, $f10, $f10 \r\n"
+ "lwc1 $f10, %2 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "xor $f14, $f14, $f14 \r\n"
+ "packsswh $f10, $f10, $f10 \r\n"
+ "packsswh $f10, $f10, $f10 \r\n"
+ "psubh $f14, $f14, $f10 \r\n"
+ "xor $f8, $f8, $f8 \r\n"
+ ".p2align 4 \r\n"
+ "1: \r\n"
+ "daddu $8, %0, %3 \r\n"
+ "gsldlc1 $f0, 7($8) \r\n"
+ "gsldrc1 $f0, 0($8) \r\n"
+ "gsldlc1 $f2, 15($8) \r\n"
+ "gsldrc1 $f2, 8($8) \r\n"
+ "mov.d $f4, $f0 \r\n"
+ "mov.d $f6, $f2 \r\n"
+ "pmullh $f0, $f0, $f12 \r\n"
+ "pmullh $f2, $f2, $f12 \r\n"
+ "pcmpgth $f4, $f4, $f8 \r\n"
+ "pcmpgth $f6, $f6, $f8 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "paddh $f0, $f0, $f14 \r\n"
+ "paddh $f2, $f2, $f14 \r\n"
+ "xor $f4, $f4, $f0 \r\n"
+ "xor $f6, $f6, $f2 \r\n"
+ "pcmpeqh $f0, $f0, $f14 \r\n"
+ "pcmpeqh $f2, $f2, $f14 \r\n"
+ "pandn $f0, $f0, $f4 \r\n"
+ "pandn $f2, $f2, $f6 \r\n"
+ "gssdlc1 $f0, 7($8) \r\n"
+ "gssdrc1 $f0, 0($8) \r\n"
+ "gssdlc1 $f2, 15($8) \r\n"
+ "gssdrc1 $f2, 8($8) \r\n"
+ "addi %3, %3, 16 \r\n"
+ "blez %3, 1b \r\n"
+ ::"r"(block+nCoeffs),"m"(qmul),"m"(qadd),"r"(2*(-nCoeffs))
+ : "$8","memory"
+ );
+}
+
+void ff_dct_unquantize_mpeg1_intra_mmi(MpegEncContext *s, int16_t *block,
+ int n, int qscale)
+{
+ int64_t nCoeffs;
+ const uint16_t *quant_matrix;
+ int block0;
+
+ av_assert2(s->block_last_index[n]>=0);
+ nCoeffs = s->intra_scantable.raster_end[s->block_last_index[n]] + 1;
+
+ if (n<4)
+ block0 = block[0] * s->y_dc_scale;
+ else
+ block0 = block[0] * s->c_dc_scale;
+
+ /* XXX: only mpeg1 */
+ quant_matrix = s->intra_matrix;
+
+ __asm__ volatile (
+ "pcmpeqh $f14, $f14, $f14 \r\n"
+ "dli $10, 15 \r\n"
+ "dmtc1 $10, $f16 \r\n"
+ "xor $f12, $f12, $f12 \r\n"
+ "lwc1 $f12, %2 \r\n"
+ "psrlh $f14, $f14, $f16 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "or $8, %3, $0 \r\n"
+ ".p2align 4 \r\n"
+ "1: \r\n"
+ "gsldxc1 $f0, 0($8, %0) \r\n"
+ "gsldxc1 $f2, 8($8, %0) \r\n"
+ "mov.d $f16, $f0 \r\n"
+ "mov.d $f18, $f2 \r\n"
+ "gsldxc1 $f8, 0($8, %1) \r\n"
+ "gsldxc1 $f10, 8($8, %1) \r\n"
+ "pmullh $f8, $f8, $f12 \r\n"
+ "pmullh $f10, $f10, $f12 \r\n"
+ "xor $f4, $f4, $f4 \r\n"
+ "xor $f6, $f6, $f6 \r\n"
+ "pcmpgth $f4, $f4, $f0 \r\n"
+ "pcmpgth $f6, $f6, $f2 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "psubh $f0, $f0, $f4 \r\n"
+ "psubh $f2, $f2, $f6 \r\n"
+ "pmullh $f0, $f0, $f8 \r\n"
+ "pmullh $f2, $f2, $f10 \r\n"
+ "xor $f8, $f8, $f8 \r\n"
+ "xor $f10, $f10, $f10 \r\n"
+ "pcmpeqh $f8, $f8, $f16 \r\n"
+ "pcmpeqh $f10, $f10, $f18 \r\n"
+ "dli $10, 3 \r\n"
+ "dmtc1 $10, $f16 \r\n"
+ "psrah $f0, $f0, $f16 \r\n"
+ "psrah $f2, $f2, $f16 \r\n"
+ "psubh $f0, $f0, $f14 \r\n"
+ "psubh $f2, $f2, $f14 \r\n"
+ "or $f0, $f0, $f14 \r\n"
+ "or $f2, $f2, $f14 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "psubh $f0, $f0, $f4 \r\n"
+ "psubh $f2, $f2, $f6 \r\n"
+ "pandn $f8, $f8, $f0 \r\n"
+ "pandn $f10, $f10, $f2 \r\n"
+ "gssdxc1 $f8, 0($8, %0) \r\n"
+ "gssdxc1 $f10, 8($8, %0) \r\n"
+ "addi $8, $8, 16 \r\n"
+ "bltz $8, 1b \r\n"
+ ::"r"(block+nCoeffs),"r"(quant_matrix+nCoeffs),"m"(qscale),
+ "g"(-2*nCoeffs)
+ : "$8","$10","memory"
+ );
+
+ block[0] = block0;
+}
+
+void ff_dct_unquantize_mpeg1_inter_mmi(MpegEncContext *s, int16_t *block,
+ int n, int qscale)
+{
+ int64_t nCoeffs;
+ const uint16_t *quant_matrix;
+
+ av_assert2(s->block_last_index[n] >= 0);
+ nCoeffs = s->intra_scantable.raster_end[s->block_last_index[n]] + 1;
+ quant_matrix = s->inter_matrix;
+
+ __asm__ volatile (
+ "pcmpeqh $f14, $f14, $f14 \r\n"
+ "dli $10, 15 \r\n"
+ "dmtc1 $10, $f16 \r\n"
+ "xor $f12, $f12, $f12 \r\n"
+ "lwc1 $f12, %2 \r\n"
+ "psrlh $f14, $f14, $f16 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "packsswh $f12, $f12, $f12 \r\n"
+ "or $8, %3, $0 \r\n"
+ ".p2align 4 \r\n"
+ "1: \r\n"
+ "gsldxc1 $f0, 0($8, %0) \r\n"
+ "gsldxc1 $f2, 8($8, %0) \r\n"
+ "mov.d $f16, $f0 \r\n"
+ "mov.d $f18, $f2 \r\n"
+ "gsldxc1 $f8, 0($8, %1) \r\n"
+ "gsldxc1 $f10, 8($8, %1) \r\n"
+ "pmullh $f8, $f8, $f12 \r\n"
+ "pmullh $f10, $f10, $f12 \r\n"
+ "xor $f4, $f4, $f4 \r\n"
+ "xor $f6, $f6, $f6 \r\n"
+ "pcmpgth $f4, $f4, $f0 \r\n"
+ "pcmpgth $f6, $f6, $f2 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "psubh $f0, $f0, $f4 \r\n"
+ "psubh $f2, $f2, $f6 \r\n"
+ "paddh $f0, $f0, $f0 \r\n"
+ "paddh $f2, $f2, $f2 \r\n"
+ "paddh $f0, $f0, $f14 \r\n"
+ "paddh $f2, $f2, $f14 \r\n"
+ "pmullh $f0, $f0, $f8 \r\n"
+ "pmullh $f2, $f2, $f10 \r\n"
+ "xor $f8, $f8, $f8 \r\n"
+ "xor $f10, $f10, $f10 \r\n"
+ "pcmpeqh $f8, $f8, $f16 \r\n"
+ "pcmpeqh $f10, $f10, $f18 \r\n"
+ "dli $10, 4 \r\n"
+ "dmtc1 $10, $f16 \r\n"
+ "psrah $f0, $f0, $f16 \r\n"
+ "psrah $f2, $f2, $f16 \r\n"
+ "psubh $f0, $f0, $f14 \r\n"
+ "psubh $f2, $f2, $f14 \r\n"
+ "or $f0, $f0, $f14 \r\n"
+ "or $f2, $f2, $f14 \r\n"
+ "xor $f0, $f0, $f4 \r\n"
+ "xor $f2, $f2, $f6 \r\n"
+ "psubh $f0, $f0, $f4 \r\n"
+ "psubh $f2, $f2, $f6 \r\n"
+ "pandn $f8, $f8, $f0 \r\n"
+ "pandn $f10, $f10, $f2 \r\n"
+ "gssdxc1 $f8, 0($8, %0) \r\n"
+ "gssdxc1 $f10, 8($8, %0) \r\n"
+ "addi $8, $8, 16 \r\n"
+ "bltz $8, 1b \r\n"
+ ::"r"(block+nCoeffs),"r"(quant_matrix+nCoeffs),"m"(qscale),
+ "g"(-2*nCoeffs)
+ :"$8","$10","memory"
+ );
+}
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