1 files changed, 252 insertions, 0 deletions
diff --git a/im/src/lua5/imlua.c b/im/src/lua5/imlua.c
new file mode 100755
index 0000000..7e5c328
--- /dev/null
+++ b/im/src/lua5/imlua.c
@@ -0,0 +1,252 @@
+/** \file
+ * \brief IM Lua 5 Binding
+ *
+ * See Copyright Notice in im_lib.h
+ * $Id: imlua.c,v 1.2 2008/12/11 19:02:49 scuri Exp $
+ */
+
+#include <string.h>
+#include <memory.h>
+#include <stdlib.h>
+
+#include "im.h"
+#include "im_lib.h"
+#include "im_image.h"
+#include "im_convert.h"
+
+#include <lua.h>
+#include <lauxlib.h>
+
+#include "imlua.h"
+#include "imlua_aux.h"
+#include "imlua_image.h"
+#include "imlua_palette.h"
+
+/*****************************************************************************\
+ im.Version()
+\*****************************************************************************/
+static int imluaVersion (lua_State *L)
+{
+  lua_pushstring(L, imVersion());
+  return 1;
+}
+
+/*****************************************************************************\
+ im.VersionDate()
+\*****************************************************************************/
+static int imluaVersionDate (lua_State *L)
+{
+  lua_pushstring(L, imVersionDate());
+  return 1;
+}
+
+/*****************************************************************************\
+ im.VersionNumber()
+\*****************************************************************************/
+static int imluaVersionNumber (lua_State *L)
+{
+  lua_pushnumber(L, imVersionNumber());
+  return 1;
+}
+
+/*****************************************************************************\
+ im.FormatList()
+\*****************************************************************************/
+static int imluaFormatList (lua_State *L)
+{
+  int i, format_count;
+  char *format_list[50];
+
+  imFormatList(format_list, &format_count);
+
+  lua_newtable(L);
+  for (i = 0; i < format_count; i++)
+  {
+    lua_pushstring(L, format_list[i]);
+    lua_settable(L, -2);
+  }
+
+  return 1;
+}
+
+/*****************************************************************************\
+ im.FormatInfo(format)
+\*****************************************************************************/
+static int imluaFormatInfo (lua_State *L)
+{
+  char desc[50];
+  char ext[50];
+  int can_sequence;
+  int error;
+
+  error = imFormatInfo(luaL_checkstring(L, 1), desc, ext, &can_sequence);
+
+  imlua_pusherror(L, error);
+  if (error)
+    return 1;
+
+  lua_pushstring(L, desc);
+  lua_pushstring(L, ext);
+  lua_pushboolean(L, can_sequence);
+
+  return 4;
+}
+
+/*****************************************************************************\
+ im.FormatCompressions(format)
+\*****************************************************************************/
+static int imluaFormatCompressions (lua_State *L)
+{
+  int i, comp_count;
+  int error;
+  char *comp[50];
+
+  int color_mode = luaL_optint(L, 2, -1);
+  int data_type = luaL_optint(L, 3, -1);
+
+  error = imFormatCompressions(luaL_checkstring(L, 1), comp, &comp_count, color_mode, data_type);
+
+  imlua_pusherror(L, error);
+  if (error)
+    return 1;
+
+  lua_newtable(L);
+  for (i = 0; i < comp_count; i++)
+  {
+    lua_pushstring(L, comp[i]);
+    lua_settable(L, -2);
+  }
+
+  return 2;
+}
+
+/*****************************************************************************\
+ im.FormatCanWriteImage(format, compression, color_mode, data_type)
+\*****************************************************************************/
+static int imluaFormatCanWriteImage (lua_State *L)
+{
+  const char *format = luaL_checkstring(L, 1);
+  const char *compression = luaL_checkstring(L, 2);
+  int color_mode = luaL_checkint(L, 3);
+  int data_type = luaL_checkint(L, 4);
+
+  lua_pushboolean(L, imFormatCanWriteImage(format, compression, color_mode, data_type));
+  return 1;
+}
+
+/*****************************************************************************\
+ Constants
+\*****************************************************************************/
+static const imlua_constant im_constants[] = {
+
+  { "BYTE", IM_BYTE, NULL },
+  { "USHORT", IM_USHORT, NULL },
+  { "INT", IM_INT, NULL },
+  { "FLOAT", IM_FLOAT, NULL },
+  { "CFLOAT", IM_CFLOAT, NULL },
+
+  { "RGB", IM_RGB, NULL },
+  { "MAP", IM_MAP, NULL },
+  { "GRAY", IM_GRAY, NULL },
+  { "BINARY", IM_BINARY, NULL },
+  { "CMYK", IM_CMYK, NULL },
+  { "YCBCR", IM_YCBCR, NULL },
+  { "LAB", IM_LAB, NULL },
+  { "LUV", IM_LUV, NULL },
+  { "XYZ", IM_XYZ, NULL },
+
+  { "ALPHA", IM_ALPHA, NULL },
+  { "PACKED", IM_PACKED, NULL },
+  { "TOPDOWN", IM_TOPDOWN, NULL },
+
+  { "ERR_NONE", IM_ERR_NONE, NULL },
+  { "ERR_OPEN", IM_ERR_OPEN, NULL }, 
+  { "ERR_ACCESS", IM_ERR_ACCESS, NULL }, 
+  { "ERR_FORMAT", IM_ERR_FORMAT, NULL }, 
+  { "ERR_DATA", IM_ERR_DATA, NULL }, 
+  { "ERR_COMPRESS", IM_ERR_COMPRESS, NULL }, 
+  { "ERR_MEM", IM_ERR_MEM, NULL }, 
+  { "ERR_COUNTER", IM_ERR_COUNTER, NULL }, 
+
+  { "CPX_REAL", IM_CPX_REAL, NULL },
+  { "CPX_IMAG", IM_CPX_IMAG, NULL },
+  { "CPX_MAG", IM_CPX_MAG, NULL },
+  { "CPX_PHASE", IM_CPX_PHASE, NULL },
+
+  { "GAMMA_LINEAR", IM_GAMMA_LINEAR, NULL },
+  { "GAMMA_LOGLITE", IM_GAMMA_LOGLITE, NULL },
+  { "GAMMA_LOGHEAVY", IM_GAMMA_LOGHEAVY, NULL },
+  { "GAMMA_EXPLITE", IM_GAMMA_EXPLITE, NULL },
+  { "GAMMA_EXPHEAVY", IM_GAMMA_EXPHEAVY, NULL },
+
+  { "CAST_MINMAX", IM_CAST_MINMAX, NULL },
+  { "CAST_FIXED", IM_CAST_FIXED, NULL },
+  { "CAST_DIRECT", IM_CAST_DIRECT, NULL },
+
+  { "_AUTHOR",  0, IM_AUTHOR },
+  { "_COPYRIGHT",  0, IM_COPYRIGHT },
+  { "_VERSION_DATE",  0, IM_VERSION_DATE },
+  { "_DESCRIPTION",  0, IM_DESCRIPTION },
+  { "_NAME",  0, IM_NAME },
+
+  { NULL, -1, NULL },
+};
+
+void imlua_regconstants (lua_State *L, const imlua_constant *imconst)
+{
+  const imlua_constant *l = imconst;
+  for (; l->name; l++) 
+  {
+    lua_pushstring(L, l->name);
+    if (l->str_value)
+      lua_pushstring(L, l->str_value);
+    else
+      lua_pushnumber(L, l->value);
+    lua_settable(L, -3);
+  }
+
+  lua_pushstring(L, "_VERSION");
+  lua_pushstring(L, imVersion());
+  lua_settable(L, -3);
+
+  lua_pushstring(L, "_VERSION_NUMBER");
+  lua_pushnumber(L, imVersionNumber());
+  lua_settable(L, -3);
+}
+
+static const luaL_reg im_lib[] = {
+  {"Version", imluaVersion},
+  {"VersionDate", imluaVersionDate},
+  {"VersionNumber", imluaVersionNumber},
+
+  {"FormatList", imluaFormatList},
+  {"FormatInfo", imluaFormatInfo},
+  {"FormatCompressions", imluaFormatCompressions},
+  {"FormatCanWriteImage", imluaFormatCanWriteImage},
+
+  {NULL, NULL}
+};
+
+int imlua_open (lua_State *L)
+{
+  luaL_register(L, "im", im_lib);   /* leave "im" table at the top of the stack */
+  imlua_regconstants(L, im_constants);
+
+  imlua_open_file(L);
+  imlua_open_image(L);
+  imlua_open_convert(L);
+  imlua_open_util(L);
+  imlua_open_palette(L);
+
+  return 1;
+}
+
+int luaopen_imlua(lua_State *L)
+{
+  return imlua_open(L);
+}
+
+int luaopen_imlua51(lua_State *L)
+{
+  return imlua_open(L);
+}