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-rw-r--r--media/libstagefright/codecs/m4v_h263/enc/src/vlc_encode_inline.h316
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diff --git a/media/libstagefright/codecs/m4v_h263/enc/src/vlc_encode_inline.h b/media/libstagefright/codecs/m4v_h263/enc/src/vlc_encode_inline.h
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+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+#ifndef _VLC_ENCODE_INLINE_H_
+#define _VLC_ENCODE_INLINE_H_
+
+#if !defined(PV_ARM_GCC_V5) && !defined(PV_ARM_GCC_V4)
+
+__inline Int zero_run_search(UInt *bitmapzz, Short *dataBlock, RunLevelBlock *RLB, Int nc)
+{
+ Int idx, run, level, j;
+ UInt end, match;
+
+ idx = 0;
+ j = 0;
+ run = 0;
+ match = 1 << 31;
+ if (nc > 32)
+ end = 1;
+ else
+ end = 1 << (32 - nc);
+
+ while (match >= end)
+ {
+ if ((match&bitmapzz[0]) == 0)
+ {
+ run++;
+ j++;
+ match >>= 1;
+ }
+ else
+ {
+ match >>= 1;
+ level = dataBlock[j];
+ dataBlock[j] = 0; /* reset output */
+ j++;
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ }
+ }
+ nc -= 32;
+ if (nc > 0)
+ {
+ match = 1 << 31;
+ end = 1 << (32 - nc);
+ while (match >= end)
+ {
+ if ((match&bitmapzz[1]) == 0)
+ {
+ run++;
+ j++;
+ match >>= 1;
+ }
+ else
+ {
+ match >>= 1;
+ level = dataBlock[j];
+ dataBlock[j] = 0; /* reset output */
+ j++;
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ }
+ }
+ }
+
+ return idx;
+}
+
+#elif defined(__CC_ARM) /* only work with arm v5 */
+
+__inline Int zero_run_search(UInt *bitmapzz, Short *dataBlock, RunLevelBlock *RLB, Int nc)
+{
+ OSCL_UNUSED_ARG(nc);
+ Int idx, run, level, j;
+ UInt end, match;
+ Int zzorder;
+
+ idx = 0;
+ run = 0;
+ j = -1;
+ __asm
+ {
+ ldr match, [bitmapzz]
+ clz run, match
+ }
+
+ zzorder = 0;
+
+ while (run < 32)
+ {
+ __asm
+ {
+ mov end, #0x80000000
+ mov end, end, lsr run /* mask*/
+ bic match, match, end /* remove it from bitmap */
+ mov run, run, lsl #1 /* 05/09/02 */
+ ldrsh level, [dataBlock, run] /* load data */
+ strh zzorder, [dataBlock, run] /* reset output */
+ add j, j, #1
+ rsb run, j, run, lsr #1 /* delta run */
+ add j, j, run /* current position */
+ }
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ __asm
+ {
+ clz run, match
+ }
+ }
+ __asm
+ {
+ ldr match, [bitmapzz, #4]
+ clz run, match
+ }
+
+ while (run < 32)
+ {
+ __asm
+ {
+ mov end, #0x80000000
+ mov end, end, lsr run /* mask*/
+ bic match, match, end /* remove it from bitmap */
+ add run, run, #32 /* current position */
+ mov run, run, lsl #1 /* 09/02/05 */
+ ldrsh level, [dataBlock, run] /* load data */
+ strh zzorder, [dataBlock, run] /* reset output */
+ add j, j, #1
+ rsb run, j, run, lsr #1 /* delta run */
+ add j, j, run /* current position */
+ }
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ __asm
+ {
+ clz run, match
+ }
+ }
+
+ return idx;
+}
+
+#elif ( defined(PV_ARM_GCC_V4) || defined(PV_ARM_GCC_V5) ) /* ARM GNU COMPILER */
+
+__inline Int m4v_enc_clz(UInt temp)
+{
+ register Int rb;
+ register UInt ra = (UInt)temp;
+
+ asm volatile("clz %0, %1"
+ : "=&r"(rb)
+ : "r"(ra)
+ );
+
+ return (rb);
+}
+
+__inline Int zero_run_search(UInt *bitmapzz, Short *dataBlock, RunLevelBlock *RLB, Int nc)
+{
+ OSCL_UNUSED_ARG(nc);
+ Int idx, run, level = 0, j;
+ UInt end = 0, match;
+ Int zzorder;
+
+ idx = 0;
+ run = 0;
+ j = -1;
+ match = *bitmapzz;
+ run = m4v_enc_clz(match);
+
+ zzorder = 0;
+
+ while (run < 32)
+ {
+ asm volatile("mov %0, #0x80000000\n\t"
+ "mov %0, %0, lsr %1\n\t"
+ "bic %2, %2, %0\n\t"
+ "mov %1, %1, lsl #1\n\t"
+ "ldrsh %3, [%6, %1]\n\t"
+ "strh %5, [%6, %1]\n\t"
+ "add %4, %4, #1\n\t"
+ "rsb %1, %4, %1, lsr #1\n\t"
+ "add %4, %4, %1"
+ : "+r"(end), "+r"(run), "+r"(match), "=r"(level), "+r"(j)
+ : "r"(zzorder), "r"(dataBlock));
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ run = m4v_enc_clz(match);
+ }
+ match = bitmapzz[1];
+ run = m4v_enc_clz(match);
+
+ while (run < 32)
+ {
+ asm volatile("mov %0, #0x80000000\n\t"
+ "mov %0, %0, lsr %1\n\t"
+ "bic %2, %2, %0\n\t"
+ "add %1, %1, #32\n\t"
+ "mov %1, %1, lsl #1\n\t"
+ "ldrsh %3, [%6, %1]\n\t"
+ "strh %5, [%6, %1]\n\t"
+ "add %4, %4, #1\n\t"
+ "rsb %1, %4, %1, lsr #1\n\t"
+ "add %4, %4, %1"
+ : "+r"(end), "+r"(run), "+r"(match), "+r"(level), "+r"(j)
+ : "r"(zzorder), "r"(dataBlock));
+ if (level < 0)
+ {
+ RLB->level[idx] = -level;
+ RLB->s[idx] = 1;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ else
+ {
+ RLB->level[idx] = level;
+ RLB->s[idx] = 0;
+ RLB->run[idx] = run;
+ run = 0;
+ idx++;
+ }
+ run = m4v_enc_clz(match);
+ }
+
+ return idx;
+}
+
+#endif
+
+#endif // _VLC_ENCODE_INLINE_H_
+
+
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