dr_flac library

git-svn-id: svn://kolibrios.org@8035 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/media/dr_flac/Tupfile.lua

@@ -0,0 +1,10 @@
+if tup.getconfig("NO_GCC") ~= "" then return end
+if tup.getconfig("HELPERDIR") == ""
+then
+  HELPERDIR = "../../../programs"
+end
+tup.include(HELPERDIR .. "/use_gcc.lua")
+NEWLIB_INCLUDE = "../../sdk/sources/newlib/libc/include"
+INCLUDES = INCLUDES .. " -I" .. NEWLIB_INCLUDE
+CFLAGS = CFLAGS_OPTIMIZE_SPEED .. " -nostdlib -fwhole-program"
+compile_gcc("dr_flac.c", "dr_flac.obj")

contrib/media/dr_flac/compile kolibrios lib.bat

@@ -0,0 +1,3 @@
+@echo off
+gcc -c dr_flac.c -o dr_flac.obj -O3 -march=i586 -mfpmath=387 -ffast-math -fwhole-program -nostdlib
+pause

contrib/media/dr_flac/dr_flac.c

@@ -0,0 +1,101 @@
+// FLAC decoder for KolibriOS in native shared COFF library format.
+
+// https://github.com/mackron/dr_libs/blob/master/dr_flac.h
+
+// Some functions to allow us building without any external libs
+
+#include <stddef.h>
+
+void* memset(void *base, int val, size_t len)
+{
+   int i;
+   for (i=0; i < len; ++i) ((char *) base)[i] = val;
+}
+
+int memcmp(const void *p1, const void *p2, size_t len)
+{
+   unsigned char *q1 = (unsigned char *) p1;
+   unsigned char *q2 = (unsigned char *) p2;
+   int i;
+   for (i=0; i < len; ++i)
+      if (q1[i] < q2[i]) return -1;
+      else if (q1[i] > q2[i]) return 1;
+   return 0;
+}
+
+void* memcpy(void *dest, const void *src, size_t num)
+{
+   int i;
+   for (i=0; i < num; ++i)
+      ((char *)dest)[i] = ((char *) src)[i];
+}
+
+// For building with mingw compiler
+__attribute__((externally_visible)) void __chkstk_ms(){
+	return;
+}
+
+void* malloc(size_t size) {
+	asm("int3");
+	return 0;
+}
+
+void* realloc(void *ptr, size_t size) {
+	asm("int3");
+	return 0;
+}
+
+void free(void *ptr) {
+	asm("int3");
+	return;
+}
+
+#define DRFLAC_ASSERT(expr)					((void) (0))
+#define DRFLAC_MALLOC(sz)                   malloc((sz))
+#define DRFLAC_REALLOC(p, sz)               realloc((p), (sz))
+#define DRFLAC_FREE(p)                      free((p))
+
+// Actual dr_flac related stuff starts here
+
+#define DRFLAC_IMPLEMENTATION
+
+#define DR_FLAC_NO_STDIO
+//#define DR_FLAC_NO_OGG
+//#define DR_FLAC_BUFFER_SIZE 4096
+//#define DR_FLAC_NO_CRC
+#define DR_FLAC_NO_SIMD
+
+#include "dr_flac.h"
+
+// KolibriOS type EXPORTS header
+ 
+int __stdcall libInit(){
+      return 1;
+}
+
+typedef struct{
+  char *name;
+  void *f;
+}export_t;
+
+char szLibInit[]   			="lib_init";
+char szVersion[]			="version";
+char szClose[]   			="close";
+char szOpen[]   			="open";
+char szOpenRelaxed[]   		="open_relaxed";
+char szReadPCMS16[]			="read_pcm_frames_s16";
+
+
+__attribute__((externally_visible))  export_t EXPORTS[] __asm__("EXPORTS") =
+  {
+	{ szLibInit,		libInit },
+	{ szVersion,		(void*)0x00010001 },	
+	{ szClose,			drflac_close },
+	{ szOpen,			drflac_open },
+    { szOpenRelaxed,	drflac_open_relaxed },
+	{ szReadPCMS16,		drflac_read_pcm_frames_s16},
+
+    { NULL, NULL },
+  };
+
+// End of file