20060303a

1 files changed, 168 insertions, 0 deletions

diff --git a/libfreetype/pfrdrivr.c b/libfreetype/pfrdrivr.c
new file mode 100644
index 00000000..07ba9b4c
--- /dev/null
+++ b/libfreetype/pfrdrivr.c
@@ -0,0 +1,168 @@
+/***************************************************************************/
+/*                                                                         */
+/*  pfrdrivr.c                                                             */
+/*                                                                         */
+/*    FreeType PFR driver interface (body).                                */
+/*                                                                         */
+/*  Copyright 2002 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_PFR_H
+#include "pfrdrivr.h"
+#include "pfrobjs.h"
+
+
+  static FT_Error
+  pfr_get_kerning( PFR_Face    face,
+                   FT_UInt     left,
+                   FT_UInt     right,
+                   FT_Vector  *avector )
+  {
+    FT_Error  error;
+
+    error = pfr_face_get_kerning( face, left, right, avector );
+    if ( !error )
+    {
+      PFR_PhyFont  phys = &face->phy_font;
+
+      /* convert from metrics to outline units when necessary */
+      if ( phys->outline_resolution != phys->metrics_resolution )
+      {
+        if ( avector->x != 0 )
+          avector->x = FT_MulDiv( avector->x, phys->outline_resolution,
+                                              phys->metrics_resolution );
+
+        if ( avector->y != 0 )
+          avector->y = FT_MulDiv( avector->x, phys->outline_resolution,
+                                              phys->metrics_resolution );
+      }
+    }
+    return error;
+  }
+
+
+  static FT_Error
+  pfr_get_advance( PFR_Face   face,
+                   FT_UInt    gindex,
+                   FT_Pos    *aadvance )
+  {
+    FT_Error     error = FT_Err_Bad_Argument;
+
+    *aadvance = 0;
+    if ( face )
+    {
+      PFR_PhyFont  phys  = &face->phy_font;
+
+      if ( gindex < phys->num_chars )
+      {
+        *aadvance = phys->chars[ gindex ].advance;
+        error = 0;
+      }
+    }
+
+    return error;
+  }
+
+
+  static FT_Error
+  pfr_get_metrics( PFR_Face   face,
+                   FT_UInt   *aoutline_resolution,
+                   FT_UInt   *ametrics_resolution,
+                   FT_Fixed  *ametrics_x_scale,
+                   FT_Fixed  *ametrics_y_scale )
+  {
+    PFR_PhyFont  phys  = &face->phy_font;
+    FT_Fixed     x_scale, y_scale;
+    FT_Size      size = face->root.size;
+
+    if ( aoutline_resolution )
+      *aoutline_resolution = phys->outline_resolution;
+
+    if ( ametrics_resolution )
+      *ametrics_resolution = phys->metrics_resolution;
+
+    x_scale = 0x10000L;
+    y_scale = 0x10000L;
+
+    if ( size )
+    {
+      x_scale = FT_DivFix( size->metrics.x_ppem << 6,
+                           phys->metrics_resolution );
+
+      y_scale = FT_DivFix( size->metrics.y_ppem << 6,
+                           phys->metrics_resolution );
+    }
+
+    if ( ametrics_x_scale )
+      *ametrics_x_scale = x_scale;
+
+    if ( ametrics_y_scale )
+      *ametrics_y_scale = y_scale;
+
+    return 0;
+  }
+
+
+  FT_CALLBACK_TABLE_DEF
+  const FT_PFR_ServiceRec  pfr_service_rec =
+  {
+    (FT_PFR_GetMetricsFunc)  pfr_get_metrics,
+    (FT_PFR_GetKerningFunc)  pfr_get_kerning,
+    (FT_PFR_GetAdvanceFunc)  pfr_get_advance
+  };
+
+
+  FT_CALLBACK_TABLE_DEF
+  const FT_Driver_ClassRec  pfr_driver_class =
+  {
+    {
+      ft_module_font_driver      |
+      ft_module_driver_scalable,
+
+      sizeof( FT_DriverRec ),
+
+      "pfr",
+      0x10000L,
+      0x20000L,
+
+      (FT_PFR_Service)  &pfr_service_rec,   /* format interface */
+
+      (FT_Module_Constructor)NULL,
+      (FT_Module_Destructor) NULL,
+      (FT_Module_Requester)  NULL
+    },
+
+    sizeof( PFR_FaceRec ),
+    sizeof( PFR_SizeRec ),
+    sizeof( PFR_SlotRec ),
+
+    (FT_Face_InitFunc)        pfr_face_init,
+    (FT_Face_DoneFunc)        pfr_face_done,
+    (FT_Size_InitFunc)        NULL,
+    (FT_Size_DoneFunc)        NULL,
+    (FT_Slot_InitFunc)        pfr_slot_init,
+    (FT_Slot_DoneFunc)        pfr_slot_done,
+
+    (FT_Size_ResetPointsFunc) NULL,
+    (FT_Size_ResetPixelsFunc) NULL,
+    (FT_Slot_LoadFunc)        pfr_slot_load,
+
+    (FT_Face_GetKerningFunc)  pfr_get_kerning,
+    (FT_Face_AttachFunc)      0,
+    (FT_Face_GetAdvancesFunc) 0
+  };
+
+
+/* END */