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-rw-r--r--apps/codecs/libwma/wmafixed.c131
1 files changed, 125 insertions, 6 deletions
diff --git a/apps/codecs/libwma/wmafixed.c b/apps/codecs/libwma/wmafixed.c
index 3c96700076..5569309145 100644
--- a/apps/codecs/libwma/wmafixed.c
+++ b/apps/codecs/libwma/wmafixed.c
@@ -63,20 +63,139 @@ fixed64 Fixed32To64(fixed32 x)
return (fixed64)x;
}
+
/*
- Not performance senstitive code here
+ * Helper functions for wma_window.
+ *
+ *
+ */
-*/
+#ifdef CPU_ARM
+inline void vector_fmul_add_add(fixed32 *dst, const fixed32 *data,
+ const fixed32 *window, int n)
+{
+ /* Block sizes are always power of two */
+ asm volatile (
+ "0:"
+ "ldmia %[d]!, {r0, r1};"
+ "ldmia %[w]!, {r4, r5};"
+ /* consume the first data and window value so we can use those
+ * registers again */
+ "smull r8, r9, r0, r4;"
+ "ldmia %[dst], {r0, r4};"
+ "add r0, r0, r9, lsl #1;" /* *dst=*dst+(r9<<1)*/
+ "smull r8, r9, r1, r5;"
+ "add r1, r4, r9, lsl #1;"
+ "stmia %[dst]!, {r0, r1};"
+ "subs %[n], %[n], #2;"
+ "bne 0b;"
+ : [d] "+r" (data), [w] "+r" (window), [dst] "+r" (dst), [n] "+r" (n)
+ : : "r0", "r1", "r4", "r5", "r8", "r9", "memory", "cc");
+}
+
+inline void vector_fmul_reverse(fixed32 *dst, const fixed32 *src0, const fixed32 *src1,
+ int len)
+{
+ /* Block sizes are always power of two */
+ asm volatile (
+ "add %[s1], %[s1], %[n], lsl #2;"
+ "0:"
+ "ldmia %[s0]!, {r0, r1};"
+ "ldmdb %[s1]!, {r4, r5};"
+ "smull r8, r9, r0, r5;"
+ "mov r0, r9, lsl #1;"
+ "smull r8, r9, r1, r4;"
+ "mov r1, r9, lsl #1;"
+ "stmia %[dst]!, {r0, r1};"
+ "subs %[n], %[n], #2;"
+ "bne 0b;"
+ : [s0] "+r" (src0), [s1] "+r" (src1), [dst] "+r" (dst), [n] "+r" (len)
+ : : "r0", "r1", "r4", "r5", "r8", "r9", "memory", "cc");
+}
+#elif defined(CPU_COLDFIRE)
-fixed64 fixmul64byfixed(fixed64 x, fixed32 y)
+inline void vector_fmul_add_add(fixed32 *dst, const fixed32 *data,
+ const fixed32 *window, int n)
{
+ /* Block sizes are always power of two. Smallest block is always way bigger
+ * than four too.*/
+ asm volatile (
+ "0:"
+ "movem.l (%[d]), %%d0-%%d3;"
+ "movem.l (%[w]), %%d4-%%d5/%%a0-%%a1;"
+ "mac.l %%d0, %%d4, %%acc0;"
+ "mac.l %%d1, %%d5, %%acc1;"
+ "mac.l %%d2, %%a0, %%acc2;"
+ "mac.l %%d3, %%a1, %%acc3;"
+ "lea.l (16, %[d]), %[d];"
+ "lea.l (16, %[w]), %[w];"
+ "movclr.l %%acc0, %%d0;"
+ "movclr.l %%acc1, %%d1;"
+ "movclr.l %%acc2, %%d2;"
+ "movclr.l %%acc3, %%d3;"
+ "movem.l (%[dst]), %%d4-%%d5/%%a0-%%a1;"
+ "add.l %%d4, %%d0;"
+ "add.l %%d5, %%d1;"
+ "add.l %%a0, %%d2;"
+ "add.l %%a1, %%d3;"
+ "movem.l %%d0-%%d3, (%[dst]);"
+ "lea.l (16, %[dst]), %[dst];"
+ "subq.l #4, %[n];"
+ "jne 0b;"
+ : [d] "+a" (data), [w] "+a" (window), [dst] "+a" (dst), [n] "+d" (n)
+ : : "d0", "d1", "d2", "d3", "d4", "d5", "a0", "a1", "memory", "cc");
+}
- //return x * y;
- return (x * y);
- // return (fixed64) fixmul32(Fixed32From64(x),y);
+inline void vector_fmul_reverse(fixed32 *dst, const fixed32 *src0, const fixed32 *src1,
+ int len)
+{
+ /* Block sizes are always power of two. Smallest block is always way bigger
+ * than four too.*/
+ asm volatile (
+ "lea.l (-16, %[s1], %[n]*4), %[s1];"
+ "0:"
+ "movem.l (%[s0]), %%d0-%%d3;"
+ "movem.l (%[s1]), %%d4-%%d5/%%a0-%%a1;"
+ "mac.l %%d0, %%a1, %%acc0;"
+ "mac.l %%d1, %%a0, %%acc1;"
+ "mac.l %%d2, %%d5, %%acc2;"
+ "mac.l %%d3, %%d4, %%acc3;"
+ "lea.l (16, %[s0]), %[s0];"
+ "lea.l (-16, %[s1]), %[s1];"
+ "movclr.l %%acc0, %%d0;"
+ "movclr.l %%acc1, %%d1;"
+ "movclr.l %%acc2, %%d2;"
+ "movclr.l %%acc3, %%d3;"
+ "movem.l %%d0-%%d3, (%[dst]);"
+ "lea.l (16, %[dst]), %[dst];"
+ "subq.l #4, %[n];"
+ "jne 0b;"
+ : [s0] "+a" (src0), [s1] "+a" (src1), [dst] "+a" (dst), [n] "+d" (len)
+ : : "d0", "d1", "d2", "d3", "d4", "d5", "a0", "a1", "memory", "cc");
}
+#else
+
+inline void vector_fmul_add_add(fixed32 *dst, const fixed32 *src0, const fixed32 *src1, int len){
+ int i;
+ for(i=0; i<len; i++)
+ dst[i] = fixmul32b(src0[i], src1[i]) + dst[i];
+}
+
+inline void vector_fmul_reverse(fixed32 *dst, const fixed32 *src0, const fixed32 *src1, int len){
+ int i;
+ src1 += len-1;
+ for(i=0; i<len; i++)
+ dst[i] = fixmul32b(src0[i], src1[-i]);
+}
+
+#endif
+
+/*
+ Not performance senstitive code here
+
+*/
fixed32 fixdiv32(fixed32 x, fixed32 y)
{