[tfm] Initialised TFM driver files.

* src/tfm : Added all the driver source files and makefiles.

9 files changed, 464 insertions, 0 deletions

diff --git a/src/tfm/README b/src/tfm/README
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/src/tfm/README
diff --git a/src/tfm/module.mk b/src/tfm/module.mk
new file mode 100644
index 000000000..00513046d
--- /dev/null
+++ b/src/tfm/module.mk
@@ -0,0 +1,22 @@
+#
+# FreeType 2 GF Font module definition
+#
+
+
+# Copyright 1996-2018 by
+# David Turner, Robert Wilhelm, and Werner Lemberg.
+#
+# This file is part of the FreeType project, and may only be used, modified,
+# and distributed under the terms of the FreeType project license,
+# LICENSE.TXT.  By continuing to use, modify, or distribute this file you
+# indicate that you have read the license and understand and accept it
+# fully.
+
+FTMODULE_H_COMMANDS += TFM_DRIVER
+
+define TFM_DRIVER
+$(OPEN_DRIVER) FT_Driver_ClassRec, tfm_driver_class $(CLOSE_DRIVER)
+$(ECHO_DRIVER)tfm        $(ECHO_DRIVER_DESC)tfm TeX's bitmap fonts$(ECHO_DRIVER_DONE)
+endef
+
+# EOF
diff --git a/src/tfm/rules.mk b/src/tfm/rules.mk
new file mode 100644
index 000000000..4bf58bf41
--- /dev/null
+++ b/src/tfm/rules.mk
@@ -0,0 +1,70 @@
+#
+# FreeType 2 TFM driver configuration rules
+#
+
+
+# Copyright 1996-2018 by
+# David Turner, Robert Wilhelm, and Werner Lemberg.
+#
+# This file is part of the FreeType project, and may only be used, modified,
+# and distributed under the terms of the FreeType project license,
+# LICENSE.TXT.  By continuing to use, modify, or distribute this file you
+# indicate that you have read the license and understand and accept it
+# fully.
+
+
+# tfm driver directory
+#
+TFM_DIR := $(SRC_DIR)/tfm
+
+
+TFM_COMPILE := $(CC) $(ANSIFLAGS)                            \
+                     $I$(subst /,$(COMPILER_SEP),$(TFM_DIR)) \
+                     $(INCLUDE_FLAGS)                        \
+                     $(FT_CFLAGS)
+
+
+# tfm driver sources (i.e., C files)
+#
+TFM_DRV_SRC :=  $(TFM_DIR)/tfmlib.c \
+               $(TFM_DIR)/tfmdrivr.c
+
+
+# tfm driver headers
+#
+TFM_DRV_H :=  $(TFM_DIR)/tfm.h \
+             $(TFM_DIR)/tfmdrivr.h \
+             $(TFM_DIR)/tfmerror.h
+
+# tfm driver object(s)
+#
+#   TFM_DRV_OBJ_M is used during `multi' builds
+#   TFM_DRV_OBJ_S is used during `single' builds
+#
+TFM_DRV_OBJ_M := $(TFM_DRV_SRC:$(TFM_DIR)/%.c=$(OBJ_DIR)/%.$O)
+TFM_DRV_OBJ_S := $(OBJ_DIR)/tfm.$O
+
+# tfm driver source file for single build
+#
+TFM_DRV_SRC_S := $(TFM_DIR)/tfm.c
+
+
+# tfm driver - single object
+#
+$(TFM_DRV_OBJ_S): $(TFM_DRV_SRC_S) $(TFM_DRV_SRC) $(FREETYPE_H) $(TFM_DRV_H)
+	$(TFM_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(TFM_DRV_SRC_S))
+
+
+# tfm driver - multiple objects
+#
+$(OBJ_DIR)/%.$O: $(TFM_DIR)/%.c $(FREETYPE_H) $(TFM_DRV_H)
+	$(TFM_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
+
+
+# update main driver object lists
+#
+DRV_OBJS_S += $(TFM_DRV_OBJ_S)
+DRV_OBJS_M += $(TFM_DRV_OBJ_M)
+
+
+# EOF
diff --git a/src/tfm/tfm.c b/src/tfm/tfm.c
new file mode 100644
index 000000000..26a58d9a7
--- /dev/null
+++ b/src/tfm/tfm.c
@@ -0,0 +1,27 @@
+/****************************************************************************
+ *
+ * tfm.c
+ *
+ *   FreeType font driver for TeX's TFM FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#define FT_MAKE_OPTION_SINGLE_OBJECT
+
+#include <ft2build.h>
+
+#include "tfmlib.c"
+#include "tfmdrivr.c"
+
+
+/* END */
diff --git a/src/tfm/tfm.h b/src/tfm/tfm.h
new file mode 100644
index 000000000..a783777d3
--- /dev/null
+++ b/src/tfm/tfm.h
@@ -0,0 +1,38 @@
+/****************************************************************************
+ *
+ * tfm.h
+ *
+ *   FreeType font driver for TeX's TFM FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef TFM_H_
+#define TFM_H_
+
+#include <ft2build.h>
+#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_STREAM_H
+#include FT_SYSTEM_H
+
+
+FT_BEGIN_HEADER
+
+/* TO-DO */
+
+FT_END_HEADER
+
+
+#endif /* TFM_H_ */
+
+
+/* END */
diff --git a/src/tfm/tfmdrivr.c b/src/tfm/tfmdrivr.c
new file mode 100644
index 000000000..563d01af4
--- /dev/null
+++ b/src/tfm/tfmdrivr.c
@@ -0,0 +1,176 @@
+/****************************************************************************
+ *
+ * tfmdrivr.c
+ *
+ *   FreeType font driver for TeX's TFM FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+#include <ft2build.h>
+
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_TRUETYPE_IDS_H
+#include FT_SERVICE_FONT_FORMAT_H
+
+
+#include "tfm.h"
+#include "tfmdrivr.h"
+#include "tfmerror.h"
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_tfmdriver
+
+
+  typedef struct  TFM_CMapRec_
+  {
+    FT_CMapRec        cmap;
+    /* TO-DO */
+  } TFM_CMapRec, *TFM_CMap;
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  tfm_cmap_init(  FT_CMap     tfmcmap,
+                  FT_Pointer  init_data )
+  {
+    /* TO-DO */
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  tfm_cmap_done( FT_CMap  tfmcmap )
+  {
+    /* TO-DO */
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt )
+  tfm_cmap_char_index(  FT_CMap    tfmcmap,
+                        FT_UInt32  char_code )
+  {
+    /* TO-DO */
+  }
+
+  FT_CALLBACK_DEF( FT_UInt )
+  tfm_cmap_char_next(  FT_CMap     tfmcmap,
+                       FT_UInt32  *achar_code )
+  {
+    /* TO-DO */
+  }
+
+
+  static
+  const FT_CMap_ClassRec  tfm_cmap_class =
+  {
+    sizeof ( TFM_CMapRec ),
+    tfm_cmap_init,
+    tfm_cmap_done,
+    tfm_cmap_char_index,
+    tfm_cmap_char_next,
+
+    NULL, NULL, NULL, NULL, NULL
+  };
+
+
+  FT_CALLBACK_DEF( void )
+  TFM_Face_Done( FT_Face        tfmface )         /* TFM_Face */
+  {
+    /* TO-DO */
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  TFM_Face_Init(  FT_Stream      stream,
+                  FT_Face        tfmface,         /* TFM_Face */
+                  FT_Int         face_index,
+                  FT_Int         num_params,
+                  FT_Parameter*  params )
+  {
+    /* TO-DO */
+  }
+
+  FT_CALLBACK_DEF( FT_Error )
+  TFM_Size_Select(  FT_Size   size,
+                    FT_ULong  strike_index )
+  {
+    /* TO-DO */
+  }
+
+  FT_CALLBACK_DEF( FT_Error )
+  TFM_Size_Request(  FT_Size          size,
+                     FT_Size_Request  req )
+  {
+    /* TO-DO */
+  }
+
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  TFM_Glyph_Load(  FT_GlyphSlot  slot,
+                   FT_Size       size,
+                   FT_UInt       glyph_index,
+                   FT_Int32      load_flags )
+  {
+    /* TO-DO */
+  }
+
+
+   FT_CALLBACK_TABLE_DEF
+  const FT_Driver_ClassRec  tfm_driver_class =
+  {
+    {
+      FT_MODULE_FONT_DRIVER         |
+      FT_MODULE_DRIVER_NO_OUTLINES,
+      sizeof ( FT_DriverRec ),
+
+      "tfm",
+      0x10000L,
+      0x20000L,
+
+      NULL,    									/* module-specific interface */
+
+      NULL,                     /* FT_Module_Constructor  module_init   */
+      NULL,                     /* FT_Module_Destructor   module_done   */
+      NULL      								/* FT_Module_Requester    get_interface */
+    },
+
+    sizeof ( TFM_FaceRec ),
+    sizeof ( FT_SizeRec ),
+    sizeof ( FT_GlyphSlotRec ),
+
+    TFM_Face_Init,               /* FT_Face_InitFunc  init_face */
+    TFM_Face_Done,               /* FT_Face_DoneFunc  done_face */
+    NULL,                       /* FT_Size_InitFunc  init_size */
+    NULL,                       /* FT_Size_DoneFunc  done_size */
+    NULL,                       /* FT_Slot_InitFunc  init_slot */
+    NULL,                       /* FT_Slot_DoneFunc  done_slot */
+
+    TFM_Glyph_Load,              /* FT_Slot_LoadFunc  load_glyph */
+
+    NULL,                       /* FT_Face_GetKerningFunc   get_kerning  */
+    NULL,                       /* FT_Face_AttachFunc       attach_file  */
+    NULL,                       /* FT_Face_GetAdvancesFunc  get_advances */
+
+    TFM_Size_Request,           /* FT_Size_RequestFunc  request_size */
+    TFM_Size_Select             /* FT_Size_SelectFunc   select_size  */
+  };
+
+
+/* END */
diff --git a/src/tfm/tfmdrivr.h b/src/tfm/tfmdrivr.h
new file mode 100644
index 000000000..07b76283d
--- /dev/null
+++ b/src/tfm/tfmdrivr.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+ *
+ * tfmdrivr.h
+ *
+ *   FreeType font driver for TeX's TFM FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef TFMDRIVR_H_
+#define TFMDRIVR_H_
+
+#include <ft2build.h>
+#include FT_INTERNAL_DRIVER_H
+
+#include "tfm.h"
+
+
+FT_BEGIN_HEADER
+
+  typedef struct  TFM_FaceRec_
+  {
+    FT_FaceRec        root;
+    /* TO-DO */
+  } TFM_FaceRec, *TFM_Face;
+
+
+  FT_EXPORT_VAR( const FT_Driver_ClassRec )  tfm_driver_class;
+
+
+FT_END_HEADER
+
+
+#endif /* TFMDRIVR_H_ */
+
+
+/* END */
diff --git a/src/tfm/tfmerror.h b/src/tfm/tfmerror.h
new file mode 100644
index 000000000..f2df33e93
--- /dev/null
+++ b/src/tfm/tfmerror.h
@@ -0,0 +1,40 @@
+/****************************************************************************
+ *
+ * gferror.h
+ *
+ *   FreeType font driver for TeX's GF FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This file is used to define the GF error enumeration constants.
+   *
+   */
+
+#ifndef GFERROR_H_
+#define GFERROR_H_
+
+#include FT_MODULE_ERRORS_H
+
+#undef FTERRORS_H_
+
+#undef  FT_ERR_PREFIX
+#define FT_ERR_PREFIX  GF_Err_
+#define FT_ERR_BASE    FT_Mod_Err_GF
+
+#include FT_ERRORS_H
+
+#endif /* GFERROR_H_ */
+
+
+/* END */
diff --git a/src/tfm/tfmlib.c b/src/tfm/tfmlib.c
new file mode 100644
index 000000000..4d4709976
--- /dev/null
+++ b/src/tfm/tfmlib.c
@@ -0,0 +1,45 @@
+/****************************************************************************
+ *
+ * tfmlib.c
+ *
+ *   FreeType font driver for TeX's TFM FONT files
+ *
+ * Copyright 1996-2018 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+#include <ft2build.h>
+
+#include FT_FREETYPE_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_SYSTEM_H
+#include FT_CONFIG_CONFIG_H
+#include FT_ERRORS_H
+#include FT_TYPES_H
+
+#include "tfm.h"
+#include "tfmdrivr.h"
+#include "tfmerror.h"
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_tfmlib
+
+/* TO-DO */
+
+/* END */