DIRAC Decoder stable version, MMX support removed.

Look for MMX_DISABLED to find the disabled functions.

Authors of this code are Marco Gerards <marco@gnu.org> and David Conrad <lessen42@gmail.com>
With changes from Jordi Ortiz <nenjordi@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 195 insertions, 0 deletions

diff --git a/libavcodec/x86/dwt.c b/libavcodec/x86/dwt.c
new file mode 100644
index 0000000000..5cfc2bee88
--- /dev/null
+++ b/libavcodec/x86/dwt.c
@@ -0,0 +1,195 @@
+/*
+ * MMX optimized discrete wavelet transform
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2010 David Conrad
+ *
+ * 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 "libavutil/x86_cpu.h"
+#include "dsputil_mmx.h"
+#include "dwt.h"
+
+#define COMPOSE_VERTICAL(ext, align) \
+void ff_vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
+void ff_vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
+void ff_vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
+void ff_vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
+void ff_vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width); \
+\
+static void vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+\
+    for(i=width_align; i<width; i++) \
+        b1[i] = COMPOSE_53iL0(b0[i], b1[i], b2[i]); \
+\
+    ff_vertical_compose53iL0##ext(b0, b1, b2, width_align); \
+} \
+\
+static void vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+\
+    for(i=width_align; i<width; i++) \
+        b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); \
+\
+    ff_vertical_compose_dirac53iH0##ext(b0, b1, b2, width_align); \
+} \
+\
+static void vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
+                                           IDWTELEM *b3, IDWTELEM *b4, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+\
+    for(i=width_align; i<width; i++) \
+        b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
+\
+    ff_vertical_compose_dd137iL0##ext(b0, b1, b2, b3, b4, width_align); \
+} \
+\
+static void vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
+                                          IDWTELEM *b3, IDWTELEM *b4, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+\
+    for(i=width_align; i<width; i++) \
+        b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
+\
+    ff_vertical_compose_dd97iH0##ext(b0, b1, b2, b3, b4, width_align); \
+} \
+static void vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+\
+    for(i=width_align; i<width; i++) { \
+        b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); \
+        b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); \
+    } \
+\
+    ff_vertical_compose_haar##ext(b0, b1, width_align); \
+} \
+\
+
+#if HAVE_YASM
+#if !ARCH_X86_64
+COMPOSE_VERTICAL(_mmx, 4)
+#endif
+COMPOSE_VERTICAL(_sse2, 8)
+#endif
+
+
+void ff_horizontal_compose_dd97i_ssse3(IDWTELEM *b, IDWTELEM *tmp, int w);
+
+void ff_horizontal_compose_haar0i_mmx(IDWTELEM *b, IDWTELEM *tmp, int w);
+void ff_horizontal_compose_haar1i_mmx(IDWTELEM *b, IDWTELEM *tmp, int w);
+void ff_horizontal_compose_haar0i_sse2(IDWTELEM *b, IDWTELEM *tmp, int w);
+void ff_horizontal_compose_haar1i_sse2(IDWTELEM *b, IDWTELEM *tmp, int w);
+
+void ff_horizontal_compose_dd97i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
+{
+    for (; x < w2; x++) {
+        b[2*x  ] = (tmp[x] + 1)>>1;
+        b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
+    }
+}
+
+void ff_horizontal_compose_haar0i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
+{
+    for (; x < w2; x++) {
+        b[2*x  ] = tmp[x];
+        b[2*x+1] = COMPOSE_HAARiH0(b[x+w2], tmp[x]);
+    }
+}
+
+void ff_horizontal_compose_haar1i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
+{
+    for (; x < w2; x++) {
+        b[2*x  ] = (tmp[x] + 1)>>1;
+        b[2*x+1] = (COMPOSE_HAARiH0(b[x+w2], tmp[x]) + 1)>>1;
+    }
+}
+
+void ff_spatial_idwt_init_mmx(DWTContext *d, enum dwt_type type)
+{
+#if HAVE_YASM
+  int mm_flags = av_get_cpu_flags();;
+
+#if !ARCH_X86_64
+    if (!(mm_flags & AV_CPU_FLAG_MMX))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->vertical_compose_l0 = vertical_compose53iL0_mmx;
+        d->vertical_compose_h0 = vertical_compose_dd97iH0_mmx;
+        break;
+    case DWT_DIRAC_LEGALL5_3:
+        d->vertical_compose_l0 = vertical_compose53iL0_mmx;
+        d->vertical_compose_h0 = vertical_compose_dirac53iH0_mmx;
+        break;
+    case DWT_DIRAC_DD13_7:
+        d->vertical_compose_l0 = vertical_compose_dd137iL0_mmx;
+        d->vertical_compose_h0 = vertical_compose_dd97iH0_mmx;
+        break;
+    case DWT_DIRAC_HAAR0:
+        d->vertical_compose   = vertical_compose_haar_mmx;
+        d->horizontal_compose = ff_horizontal_compose_haar0i_mmx;
+        break;
+    case DWT_DIRAC_HAAR1:
+        d->vertical_compose   = vertical_compose_haar_mmx;
+        d->horizontal_compose = ff_horizontal_compose_haar1i_mmx;
+        break;
+    }
+#endif
+
+    if (!(mm_flags & AV_CPU_FLAG_SSE2))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->vertical_compose_l0 = vertical_compose53iL0_sse2;
+        d->vertical_compose_h0 = vertical_compose_dd97iH0_sse2;
+        break;
+    case DWT_DIRAC_LEGALL5_3:
+        d->vertical_compose_l0 = vertical_compose53iL0_sse2;
+        d->vertical_compose_h0 = vertical_compose_dirac53iH0_sse2;
+        break;
+    case DWT_DIRAC_DD13_7:
+        d->vertical_compose_l0 = vertical_compose_dd137iL0_sse2;
+        d->vertical_compose_h0 = vertical_compose_dd97iH0_sse2;
+        break;
+    case DWT_DIRAC_HAAR0:
+        d->vertical_compose   = vertical_compose_haar_sse2;
+        d->horizontal_compose = ff_horizontal_compose_haar0i_sse2;
+        break;
+    case DWT_DIRAC_HAAR1:
+        d->vertical_compose   = vertical_compose_haar_sse2;
+        d->horizontal_compose = ff_horizontal_compose_haar1i_sse2;
+        break;
+    }
+
+    if (!(mm_flags & AV_CPU_FLAG_SSSE3))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->horizontal_compose = ff_horizontal_compose_dd97i_ssse3;
+        break;
+    }
+#endif // HAVE_YASM
+}