shithub: freetype+ttf2subf

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[sdf] Add build infrastructure.

* src/sdf/module.mk, src/sfd/rules.mk: New files.

* src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.

* include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition
for the 'sdf' module.

* include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace
definition for the `sdf' module.

* modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of
rasterizers.

git/fs: mount .git/fs: mount/attach disallowed

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,5 +1,22 @@

 2020-08-19  Anuj Verma  <anujv@iitbhilai.ac.in>

+	[sdf] Add build infrastructure.

+

+	* src/sdf/module.mk, src/sfd/rules.mk: New files.

+

+	* src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.

+

+	* include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition

+	for the 'sdf' module.

+

+	* include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace

+	definition for the `sdf' module.

+

+	* modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of

+	rasterizers.

+

+2020-08-19  Anuj Verma  <anujv@iitbhilai.ac.in>

+

 	[sdf] Add interface functions for the 'sdf' rasterizer.

 	* src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset,

--- a/include/freetype/ftmoderr.h

+++ b/include/freetype/ftmoderr.h

@@ -171,6 +171,7 @@

   FT_MODERRDEF( Type42,   0x1400, "Type 42 module" )

   FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )

   FT_MODERRDEF( GXvalid,  0x1600, "GX validation module" )

+  FT_MODERRDEF( Sdf,      0x1700, "Signed distance field raster module" )

 #ifdef FT_MODERR_END_LIST

--- a/include/freetype/internal/fttrace.h

+++ b/include/freetype/internal/fttrace.h

@@ -44,6 +44,7 @@

 FT_TRACE_DEF( raccess )   /* resource fork accessor  (ftrfork.c)  */

 FT_TRACE_DEF( raster )    /* monochrome rasterizer   (ftraster.c) */

 FT_TRACE_DEF( smooth )    /* anti-aliasing raster    (ftgrays.c)  */

+FT_TRACE_DEF( sdf )       /* signed distance raster  (ftsdf.c)    */

 FT_TRACE_DEF( synth )     /* bold/slant synthesizer  (ftsynth.c)  */

   /* Cache sub-system */

--- a/modules.cfg

+++ b/modules.cfg

@@ -99,6 +99,9 @@

 # Anti-aliasing rasterizer.

 RASTER_MODULES += smooth

+# Signed distance field rasterizer.

+RASTER_MODULES += sdf

+

 ####

 #### auxiliary modules

--- a/src/sdf/ftsdf.h

+++ b/src/sdf/ftsdf.h

@@ -63,6 +63,10 @@

   } SDF_Raster_Params;

+

+  /* rasterizer to convert outline to SDF */

+  FT_EXPORT_VAR( const FT_Raster_Funcs )  ft_sdf_raster;

+

 FT_END_HEADER

 #endif /* FTSDF_H_ */

--- /dev/null

+++ b/src/sdf/module.mk

@@ -1,0 +1,16 @@

+

+

+FTMODULE_H_COMMANDS += SDF_RENDERER

+FTMODULE_H_COMMANDS += BSDF_RENDERER

+

+define SDF_RENDERER

+$(OPEN_DRIVER) FT_Renderer_Class, ft_sdf_renderer_class $(CLOSE_DRIVER)

+$(ECHO_DRIVER)sdf       $(ECHO_DRIVER_DESC)signed distance field renderer$(ECHO_DRIVER_DONE)

+endef

+

+define BSDF_RENDERER

+$(OPEN_DRIVER) FT_Renderer_Class, ft_bitmap_sdf_renderer_class $(CLOSE_DRIVER)

+$(ECHO_DRIVER)bsdf      $(ECHO_DRIVER_DESC)bitmap to signed distance field converter$(ECHO_DRIVER_DONE)

+endef

+

+#EOF

--- /dev/null

+++ b/src/sdf/rules.mk

@@ -1,0 +1,64 @@

+

+

+# sdf driver directory

+#

+SDF_DIR := $(SRC_DIR)/sdf

+

+

+# compilation flags for the driver

+#

+SDF_COMPILE := $(CC) $(ANSIFLAGS)                            \

+                     $I$(subst /,$(COMPILER_SEP),$(SDF_DIR)) \

+                     $(INCLUDE_FLAGS)                        \

+                     $(FT_CFLAGS)

+

+

+# sdf driver sources (i.e., C files)

+#

+SDF_DRV_SRC := $(SDF_DIR)/ftsdfrend.c \

+               $(SDF_DIR)/ftsdf.c     \

+               $(SDF_DIR)/ftbsdf.c

+

+

+# sdf driver headers

+#

+SDF_DRV_H := $(SDF_DIR)/ftsdfrend.h   \

+             $(SDF_DIR)/ftsdf.h       \

+             $(SDF_DIR)/ftsdferrs.h   \

+             $(SDF_DIR)/ftsdfcommon.h

+

+

+# sdf driver object(s)

+#

+#   SDF_DRV_OBJ_M is used during `multi' builds.

+#   SDF_DRV_OBJ_S is used during `single' builds.

+#

+SDF_DRV_OBJ_M := $(SDF_DRV_SRC:$(SDF_DIR)/%.c=$(OBJ_DIR)/%.$O)

+SDF_DRV_OBJ_S := $(OBJ_DIR)/sdf.$O

+

+

+# sdf driver source file for single build

+#

+SDF_DRV_SRC_S := $(SDF_DIR)/sdf.c

+

+

+# sdf driver - single object

+#

+$(SDF_DRV_OBJ_S): $(SDF_DRV_SRC_S) $(SDF_DRV_SRC) \

+                  $(FREETYPE_H) $(SDF_DRV_H)

+	$(SDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SDF_DRV_SRC_S))

+

+

+# sdf driver - multiple objects

+#

+$(OBJ_DIR)/%.$O: $(SDF_DIR)/%.c $(FREETYPE_H) $(SDF_DRV_H)

+	$(SDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)

+

+

+# update main driver list

+#

+DRV_OBJS_S += $(SDF_DRV_OBJ_S)

+DRV_OBJS_M += $(SDF_DRV_OBJ_M)

+

+

+# EOF