Commit 5ae1bad3 authored by David Turner's avatar David Turner
Browse files

added new renderer module

parent 314bf4a1
This diff is collapsed.
/***************************************************************************/
/* */
/* ftraster.h */
/* */
/* The FreeType glyph rasterizer (specification). */
/* */
/* Copyright 1996-2000 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 FTRASTER_H
#define FTRASTER_H
#ifdef __cplusplus
extern "C" {
#endif
#include <freetype/ftimage.h>
/*************************************************************************/
/* */
/* Uncomment the following line if you are using ftraster.c as a */
/* standalone module, fully independent of FreeType. */
/* */
/* #define _STANDALONE_ */
#ifndef FT_EXPORT_VAR
#define FT_EXPORT_VAR(x) extern x
#endif
FT_EXPORT_VAR(FT_Raster_Funcs) ft_standard_raster;
#ifdef __cplusplus
}
#endif
#endif /* FTRASTER_H */
/* END */
#include <freetype/internal/ftobjs.h>
#include <raster1.h>
#include <ftraster.h>
/* initialise renderer - init its raster */
static FT_Error ft_raster1_init( FT_Renderer render )
{
FT_Library library = FT_MODULE_LIBRARY(render);
render->clazz->raster_class->raster_reset( render->raster,
library->raster_pool, library->raster_pool_size );
return 0;
}
/* sets render-specific mode */
static FT_Error ft_raster1_set_mode( FT_Renderer render,
FT_ULong mode_tag,
FT_Pointer data )
{
/* we simply pass it to the raster */
return render->clazz->raster_class->raster_set_mode(
render->raster, mode_tag, data );
}
/* transform a given glyph image */
static FT_Error ft_raster1_transform( FT_Renderer render,
FT_GlyphSlot slot,
FT_Matrix* matrix,
FT_Vector* delta )
{
FT_Error error = FT_Err_Ok;
if (slot->format != render->glyph_format)
{
error = FT_Err_Invalid_Argument;
goto Exit;
}
if (matrix)
FT_Outline_Transform( &slot->outline, matrix );
if (delta)
FT_Outline_Translate( &slot->outline, delta->x, delta->y );
Exit:
return error;
}
/* return the glyph's control box */
static void ft_raster1_get_cbox( FT_Renderer render,
FT_GlyphSlot slot,
FT_BBox *cbox )
{
MEM_Set( cbox, 0, sizeof(*cbox) );
if (slot->format == render->glyph_format)
FT_Outline_Get_CBox( &slot->outline, cbox );
}
/* convert a slot's glyph image into a bitmap */
static FT_Error ft_raster1_render( FT_Renderer render,
FT_GlyphSlot slot,
FT_UInt mode,
FT_Vector* origin )
{
FT_Error error;
FT_Outline* outline;
FT_BBox cbox;
FT_UInt width, height, pitch;
FT_Bitmap* bitmap;
FT_Memory memory;
FT_Raster_Params params;
/* check glyph image format */
if (slot->format != render->glyph_format)
{
error = FT_Err_Invalid_Argument;
goto Exit;
}
/* check rendering mode */
if ( mode & ft_render_mode_antialias )
{
/* raster1 is only capable of producing monochrome bitmaps */
if (render->clazz == &ft_raster1_renderer_class)
return FT_Err_Cannot_Render_Glyph;
}
else
{
/* raster5 is only capable of producing 5-gray-levels bitmaps */
if (render->clazz == &ft_raster5_renderer_class)
return FT_Err_Cannot_Render_Glyph;
}
outline = &slot->outline;
/* translate the outline to the new origin if needed */
if (origin)
FT_Outline_Translate( outline, origin->x, origin->y );
/* compute the control box, and grid fit it */
FT_Outline_Get_CBox( outline, &cbox );
cbox.xMin &= -64;
cbox.yMin &= -64;
cbox.xMax = (cbox.xMax+63) & -64;
cbox.yMax = (cbox.yMax+63) & -64;
width = (cbox.xMax - cbox.xMin) >> 6;
height = (cbox.yMax - cbox.yMin) >> 6;
bitmap = &slot->bitmap;
memory = render->root.memory;
/* release old bitmap buffer */
if ((slot->flags & ft_glyph_own_bitmap))
{
FREE(bitmap->buffer);
slot->flags &= ~ft_glyph_own_bitmap;
}
/* allocate new one, depends on pixel format */
if ( mode & ft_render_mode_antialias )
{
/* we pad to 32 bits, only for backwards compatibility with FT 1.x */
pitch = (width+3) & -4;
bitmap->pixel_mode = ft_pixel_mode_grays;
bitmap->num_grays = 256;
}
else
{
pitch = (width+7) >> 3;
bitmap->pixel_mode = ft_pixel_mode_mono;
}
bitmap->width = width;
bitmap->rows = height;
bitmap->pitch = pitch;
if (ALLOC( bitmap->buffer, (FT_ULong)pitch * height ))
goto Exit;
slot->flags |= ft_glyph_own_bitmap;
/* translate outline to render it into the bitmap */
FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin );
/* set up parameters */
params.target = bitmap;
params.source = outline;
params.flags = 0;
if ( bitmap->pixel_mode == ft_pixel_mode_grays )
params.flags |= ft_raster_flag_aa;
/* render outline into the bitmap */
error = render->raster_render( render->raster, &params );
if (error) goto Exit;
slot->format = ft_glyph_format_bitmap;
slot->bitmap_left = cbox.xMin >> 6;
slot->bitmap_top = cbox.yMax >> 6;
Exit:
return error;
}
const FT_Renderer_Class ft_raster1_renderer_class =
{
{
ft_module_renderer,
sizeof( FT_RendererRec ),
"raster1",
0x10000,
0x20000,
0, /* module specific interface */
(FT_Module_Constructor) ft_raster1_init,
(FT_Module_Destructor) 0,
(FT_Module_Requester) 0
},
ft_glyph_format_outline,
(FTRenderer_render) ft_raster1_render,
(FTRenderer_transform) ft_raster1_transform,
(FTRenderer_getCBox) ft_raster1_get_cbox,
(FTRenderer_setMode) ft_raster1_set_mode,
(FT_Raster_Funcs*) &ft_standard_raster
};
/* this renderer is _NOT_ part of the default modules, you'll need */
/* to register it by hand in your application. It should only be */
/* used for backwards-compatibility with FT 1.x anyway.. */
const FT_Renderer_Class ft_raster5_renderer_class =
{
{
ft_module_renderer,
sizeof( FT_RendererRec ),
"raster5",
0x10000,
0x20000,
0, /* module specific interface */
(FT_Module_Constructor) ft_raster1_init,
(FT_Module_Destructor) 0,
(FT_Module_Requester) 0
},
ft_glyph_format_outline,
(FTRenderer_render) ft_raster1_render,
(FTRenderer_transform) ft_raster1_transform,
(FTRenderer_getCBox) ft_raster1_get_cbox,
(FTRenderer_setMode) ft_raster1_set_mode,
(FT_Raster_Funcs*) &ft_standard_raster
};
#ifndef FTREND1_H
#define FTREND1_H
#include <freetype/ftrender.h>
FT_EXPORT_VAR(const FT_Renderer_Class) ft_raster1_renderer_class;
/* this renderer is _NOT_ part of the default modules, you'll need */
/* to register it by hand in your application. It should only be */
/* used for backwards-compatibility with FT 1.x anyway.. */
/* */
FT_EXPORT_VAR(const FT_Renderer_Class) ft_raster5_renderer_class;
#endif /* FTREND1_H */
make_module_list: add_raster1_module
add_raster1_module:
$(OPEN_DRIVER)ft_raster1_renderer_class$(CLOSE_DRIVER)
$(ECHO_DRIVER)raster1 $(ECHO_DRIVER_DESC)monochrome bitmap renderer$(ECHO_DRIVER_DONE)
# EOF
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include <ftraster.c>
#include <ftrend1.c>
#ifndef RASTER1_H
#define RASTER1_H
#include <freetype/ftrender.h>
FT_EXPORT_VAR(const FT_Renderer_Class) ft_raster1_renderer_class;
/* this renderer is _NOT_ part of the default modules, you'll need */
/* to register it by hand in your application. It should only be */
/* used for backwards-compatibility with FT 1.x anyway.. */
/* */
FT_EXPORT_VAR(const FT_Renderer_Class) ft_raster5_renderer_class;
#endif /* RASTER1_H */
#
# FreeType 2 renderer module build rules
#
# Copyright 1996-2000 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.
# renderer driver directory
#
RAS1_DIR := $(SRC_)raster1
RAS1_DIR_ := $(RAS1_DIR)$(SEP)
# additional include flags used when compiling the driver
#
RAS1_INCLUDE := $(RAS1_DIR)
# compilation flags for the driver
#
RAS1_CFLAGS := $(RAS1_INCLUDE:%=$I%)
RAS1_COMPILE := $(FT_COMPILE) $(RAS1_CFLAGS)
# RASTER1 driver sources (i.e., C files)
#
RAS1_DRV_SRC := $(RAS1_DIR_)ftraster.c \
$(RAS1_DIR_)ftrend1.c
# RASTER1 driver headers
#
RAS1_DRV_H := $(RAS1_DRV_SRC:%c=%h)
# RASTER1 driver object(s)
#
# RAS1_DRV_OBJ_M is used during `multi' builds.
# RAS1_DRV_OBJ_S is used during `single' builds.
#
RAS1_DRV_OBJ_M := $(RAS1_DRV_SRC:$(RAS1_DIR_)%.c=$(OBJ_)%.$O)
RAS1_DRV_OBJ_S := $(OBJ_)raster1.$O
# RASTER1 driver source file for single build
#
RAS1_DRV_SRC_S := $(RAS1_DIR_)raster1.c
# RASTER1 driver - single object
#
$(RAS1_DRV_OBJ_S): $(RAS1_DRV_SRC_S) $(RAS1_DRV_SRC) \
$(FREETYPE_H) $(RAS1_DRV_H)
$(RAS1_COMPILE) $T$@ $(RAS1_DRV_SRC_S)
# RASTER1 driver - multiple objects
#
$(OBJ_)%.$O: $(RAS1_DIR_)%.c $(FREETYPE_H) $(RAS1_DRV_H)
$(RAS1_COMPILE) $T$@ $<
# update main driver object lists
#
DRV_OBJS_S += $(RAS1_DRV_OBJ_S)
DRV_OBJS_M += $(RAS1_DRV_OBJ_M)
# EOF
This diff is collapsed.
/***************************************************************************/
/* */
/* ftgrays.h */
/* */
/* FreeType smooth renderer declaration */
/* */
/* Copyright 1996-2000 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 FTGRAYS_H
#define FTGRAYS_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _STANDALONE_
#include "ftimage.h"
#else
#include <freetype/ftimage.h>
#endif
/*************************************************************************/
/* */
/* To make ftgrays.h independent from configuration files we check */
/* whether FT_EXPORT_DEF has been defined already. */
/* */
/* On some systems and compilers (Win32 mostly), an extra keyword is */
/* necessary to compile the library as a DLL. */
/* */
#ifndef FT_EXPORT_VAR
#define FT_EXPORT_VAR(x) extern x
#endif
FT_EXPORT_VAR(FT_Raster_Funcs) ft_grays_raster;
#ifdef __cplusplus
}
#endif
#endif
#include <freetype/internal/ftobjs.h>
#include <ftsmooth.h>
#include <ftgrays.h>
/* initialise renderer - init its raster */
static FT_Error ft_smooth_init( FT_Renderer render )
{
FT_Library library = FT_MODULE_LIBRARY(render);
render->clazz->raster_class->raster_reset( render->raster,
library->raster_pool, library->raster_pool_size );
return 0;
}
/* sets render-specific mode */
static FT_Error ft_smooth_set_mode( FT_Renderer render,
FT_ULong mode_tag,
FT_Pointer data )
{
/* we simply pass it to the raster */
return render->clazz->raster_class->raster_set_mode(
render->raster, mode_tag, data );
}
/* transform a given glyph image */
static FT_Error ft_smooth_transform( FT_Renderer render,
FT_GlyphSlot slot,
FT_Matrix* matrix,
FT_Vector* delta )
{
FT_Error error = FT_Err_Ok;
if (slot->format != render->glyph_format)
{
error = FT_Err_Invalid_Argument;
goto Exit;
}
if (matrix)
FT_Outline_Transform( &slot->outline, matrix );
if (delta)
FT_Outline_Translate( &slot->outline, delta->x, delta->y );
Exit:
return error;
}
/* return the glyph's control box */
static void ft_smooth_get_cbox( FT_Renderer render,
FT_GlyphSlot slot,
FT_BBox *cbox )
{
MEM_Set( cbox, 0, sizeof(*cbox) );
if (slot->format == render->glyph_format)
FT_Outline_Get_CBox( &slot->outline, cbox );
}
/* convert a slot's glyph image into a bitmap */
static FT_Error ft_smooth_render( FT_Renderer render,
FT_GlyphSlot slot,
FT_UInt mode,
FT_Vector* origin )
{
FT_Error error;
FT_Outline* outline;
FT_BBox cbox;
FT_UInt width, height, pitch;
FT_Bitmap* bitmap;
FT_Memory memory;
FT_Raster_Params params;
/* check glyph image format */
if (slot->format != render->glyph_format)
{
error = FT_Err_Invalid_Argument;
goto Exit;
}
/* check mode */
if ( !(mode & ft_render_mode_antialias) )
return FT_Err_Cannot_Render_Glyph;
outline = &slot->outline;
/* translate the outline to the new origin if needed */
if (origin)
FT_Outline_Translate( outline, origin->x, origin->y );
/* compute the control box, and grid fit it */
FT_Outline_Get_CBox( outline, &cbox );
cbox.xMin &= -64;
cbox.yMin &= -64;
cbox.xMax = (cbox.xMax+63) & -64;
cbox.yMax = (cbox.yMax+63) & -64;
width = (cbox.xMax - cbox.xMin) >> 6;
height = (cbox.yMax - cbox.yMin) >> 6;
bitmap = &slot->bitmap;
memory = slot->face->memory;
/* release old bitmap buffer */
if ((slot->flags & ft_glyph_own_bitmap))
{
FREE(bitmap->buffer);
slot->flags &= ~ft_glyph_own_bitmap;
}
/* allocate new one, depends on pixel format */
pitch = width;
bitmap->pixel_mode = ft_pixel_mode_grays;
bitmap->num_grays = 256;
bitmap->width = width;
bitmap->rows = height;
bitmap->pitch = pitch;
if (ALLOC( bitmap->buffer, (FT_ULong)pitch * height ))
goto Exit;
slot->flags |= ft_glyph_own_bitmap;
/* translate outline to render it into the bitmap */
FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin );
/* set up parameters */
params.target = bitmap;
params.source = outline;
params.flags = ft_raster_flag_aa;
/* render outline into the bitmap */
error = render->raster_render( render->raster, &params );
if (error) goto Exit;
slot->format = ft_glyph_format_bitmap;
slot->bitmap_left = cbox.xMin >> 6;
slot->bitmap_top = cbox.yMax >> 6;
Exit:
return error;
}
const FT_Renderer_Class ft_smooth_renderer_class =
{
{
ft_module_renderer,
sizeof( FT_RendererRec ),
"smooth",
0x10000,
0x20000,
0, /* module specific interface */
(FT_Module_Constructor) ft_smooth_init,
(FT_Module_Destructor) 0,
(FT_Module_Requester) 0
},
ft_glyph_format_outline,
(FTRenderer_render) ft_smooth_render,
(FTRenderer_transform) ft_smooth_transform,
(FTRenderer_getCBox) ft_smooth_get_cbox,
(FTRenderer_setMode) ft_smooth_set_mode,
(FT_Raster_Funcs*) &ft_grays_raster
};