1 files changed, 145 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/demac/libdemac/demac_config.h b/lib/rbcodec/codecs/demac/libdemac/demac_config.h
new file mode 100644
index 0000000000..fa4f008036
--- /dev/null
+++ b/lib/rbcodec/codecs/demac/libdemac/demac_config.h
@@ -0,0 +1,145 @@
+/*
+
+libdemac - A Monkey's Audio decoder
+
+$Id$
+
+Copyright (C) Dave Chapman 2007
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
+
+*/
+
+#ifndef _DEMAC_CONFIG_H
+#define _DEMAC_CONFIG_H
+
+/* Build-time choices for libdemac.
+ * Note that this file is included by both .c and .S files. */
+
+#ifdef ROCKBOX
+
+#include "config.h"
+
+#ifndef __ASSEMBLER__
+#include "codeclib.h"
+#include <codecs.h>
+#endif
+
+#define APE_OUTPUT_DEPTH 29
+
+/* On ARMv4, using 32 bit ints for the filters is faster. */
+#if defined(CPU_ARM) && (ARM_ARCH == 4)
+#define FILTER_BITS 32
+#endif
+
+#if !defined(CPU_PP) && !defined(CPU_S5L870X)
+#define FILTER256_IRAM
+#endif
+
+#if CONFIG_CPU == PP5002 || defined(CPU_S5L870X)
+/* Code and data IRAM for speed (PP5002 has a broken cache), not enough IRAM
+ * for the insane filter buffer. Reciprocal table for division in IRAM. */
+#define ICODE_SECTION_DEMAC_ARM   .icode
+#define ICODE_ATTR_DEMAC          ICODE_ATTR
+#define ICONST_ATTR_DEMAC         ICONST_ATTR
+#define IBSS_ATTR_DEMAC           IBSS_ATTR
+#define IBSS_ATTR_DEMAC_INSANEBUF
+
+#elif CONFIG_CPU == PP5020
+/* Code and small data in DRAM for speed (PP5020 IRAM isn't completely single
+ * cycle). Insane filter buffer not in IRAM in favour of reciprocal table for
+ * divison. Decoded data buffers should be in IRAM (defined by the caller). */
+#define ICODE_SECTION_DEMAC_ARM   .text
+#define ICODE_ATTR_DEMAC
+#define ICONST_ATTR_DEMAC
+#define IBSS_ATTR_DEMAC
+#define IBSS_ATTR_DEMAC_INSANEBUF
+
+#elif CONFIG_CPU == PP5022
+/* Code in DRAM, data in IRAM. Insane filter buffer not in IRAM in favour of
+ * reciprocal table for divison */
+#define ICODE_SECTION_DEMAC_ARM   .text
+#define ICODE_ATTR_DEMAC
+#define ICONST_ATTR_DEMAC         ICONST_ATTR
+#define IBSS_ATTR_DEMAC           IBSS_ATTR
+#define IBSS_ATTR_DEMAC_INSANEBUF
+
+#else
+/* Code in DRAM, data in IRAM, including insane filter buffer. */
+#define ICODE_SECTION_DEMAC_ARM   .text
+#define ICODE_ATTR_DEMAC
+#define ICONST_ATTR_DEMAC         ICONST_ATTR
+#define IBSS_ATTR_DEMAC           IBSS_ATTR
+#define IBSS_ATTR_DEMAC_INSANEBUF IBSS_ATTR
+#endif
+
+#else /* !ROCKBOX */
+
+#define APE_OUTPUT_DEPTH (ape_ctx->bps)
+
+#define MEM_ALIGN_ATTR __attribute__((aligned(16)))
+        /* adjust to target architecture for best performance */
+
+#define ICODE_ATTR_DEMAC
+#define ICONST_ATTR_DEMAC
+#define IBSS_ATTR_DEMAC
+#define IBSS_ATTR_DEMAC_INSANEBUF
+
+/* Use to give gcc hints on which branch is most likely taken */
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define LIKELY(x)   __builtin_expect(!!(x), 1)
+#define UNLIKELY(x) __builtin_expect(!!(x), 0)
+#else
+#define LIKELY(x)   (x)
+#define UNLIKELY(x) (x)
+#endif
+
+#endif /* !ROCKBOX */
+
+/* Defaults */
+
+#ifndef FILTER_HISTORY_SIZE
+#define FILTER_HISTORY_SIZE 512
+#endif
+
+#ifndef PREDICTOR_HISTORY_SIZE
+#define PREDICTOR_HISTORY_SIZE 512
+#endif     
+
+#ifndef FILTER_BITS
+#define FILTER_BITS 16
+#endif
+
+
+#ifndef __ASSEMBLER__
+
+#if defined(CPU_ARM) && (ARM_ARCH < 5 || defined(USE_IRAM))
+/* optimised unsigned integer division for ARMv4, in IRAM */
+unsigned udiv32_arm(unsigned a, unsigned b);
+#define UDIV32(a, b) udiv32_arm(a, b)
+#else
+/* default */
+#define UDIV32(a, b) (a / b)
+#endif
+
+#include <inttypes.h>
+#if FILTER_BITS == 32
+typedef int32_t filter_int;
+#elif FILTER_BITS == 16
+typedef int16_t filter_int;
+#endif
+#endif
+
+#endif /* _DEMAC_CONFIG_H */