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[gf] COnverted file functions to FT stream functions. 

* src/gf/gflib.c : Converted all the file functions like getc,
fseek,etc. to FT specific stream functions.
This commit is contained in:
Parth Wazurkar 2018-06-24 19:19:43 +05:30
parent 1338d517c4
commit e7c95039f5
3 changed files with 192 additions and 205 deletions
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97
src/gf/gfdrivr.c
View File

@ -155,21 +155,21 @@
FT_Int num_params,
FT_Parameter* params )
{
GF_Face face = (GF_Face)gfface;
FT_Error error;
FT_Memory memory = FT_FACE_MEMORY( face );
GF_Face face = (GF_Face)gfface;
FT_Error error;
FT_Memory memory = FT_FACE_MEMORY( face );
GF_Glyph go;
face->gf_glyph = &go ;
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_TRACE2(( "GF driver\n" ));
printf("\nHi I am here\n\n");
/* load font */
error = gf_load_font( stream, face );
if ( !error )
goto Exit;
if ( FT_ERR_EQ( error, Unknown_File_Format ) )
/* load font */
error = gf_load_font( stream, memory, &go );/*printf("face->gf_glyph->code_max %d",go->code_max);printf("Hi I am here1\n");*/
if ( error )
goto Exit;
/* we have a gf font: let's construct the face object */
@ -180,13 +180,13 @@
* an invalid argument error when the font could be
* opened by the specified driver.
*/
if ( face_index > 0 && ( face_index & 0xFFFF ) > 0 )
/* if ( face_index > 0 && ( face_index & 0xFFFF ) > 0 )
{
FT_ERROR(( "GF_Face_Init: invalid face index\n" ));
GF_Face_Done( gfface );
return FT_THROW( Invalid_Argument );
}
*/
gfface->num_faces = 1;
gfface->face_index = 0;
gfface->face_flags |= FT_FACE_FLAG_FIXED_SIZES |
@ -195,13 +195,14 @@
* XXX: TO-DO: gfface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
* XXX: I have to check for this.
*/
/*printf("Hi I am here2\n");*/
gfface->family_name = NULL;
gfface->num_glyphs = (FT_Long)( sizeof(face->gf_glyph->bm_table) );
gfface->num_glyphs = (FT_Long)(go->code_max - go->code_min + 1 );
gfface->num_fixed_sizes = 1;
/*printf("Hi I am here3\n");*/
if ( FT_NEW_ARRAY( gfface->available_sizes, 1 ) )
goto Exit;
/*printf("Hi I am here4\n");*/
{
FT_Bitmap_Size* bsize = gfface->available_sizes;
FT_UShort x_res, y_res;
@ -209,14 +210,15 @@
FT_ZERO( bsize );
bsize->width = (FT_Short) face->gf_glyph->font_bbx_w ;
bsize->height = (FT_Short) face->gf_glyph->font_bbx_h ;
bsize->size = face->gf_glyph->font_bbx_xoff ;
bsize->size = (FT_Short) face->gf_glyph->ds ; /* Preliminary to be checked for 26.6 fractional points*/
/*x_res = ;
y_res = ;
/*x_res = ; To be Checked for x_resolution and y_resolution
y_res = ;
*/
bsize->y_ppem = face->gf_glyph->font_bbx_yoff ;
bsize->x_ppem = face->gf_glyph->font_bbx_xoff ;
}
/*printf("Hi I am here5\n");*/
/* Charmaps */
@ -226,7 +228,7 @@
charmap.encoding = FT_ENCODING_NONE;
/* initial platform/encoding should indicate unset status? */
charmap.platform_id = TT_PLATFORM_APPLE_UNICODE;
charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; /*Preliminary */
charmap.encoding_id = TT_APPLE_ID_DEFAULT;
charmap.face = face;
@ -234,12 +236,14 @@
if ( error )
goto Fail;
/*printf("Hi I am here completed GF_Face_Init1\n");*/
}
/*printf("Hi I am here6\n");*/
Fail:
GF_Face_Done( gfface );
Exit:
/* printf("Hi I am here completed GF_Face_Init2 %ld\n",gfface->num_glyphs);*/
return error;
}
@ -247,16 +251,16 @@
GF_Size_Select( FT_Size size,
FT_ULong strike_index )
{
GF_Face face = (GF_Face)size->face;
FT_UNUSED( strike_index );
FT_Select_Metrics( size->face, 0 );
/*
size->metrics.ascender = ;
size->metrics.descender = ;
size->metrics.max_advance = ;
*/
size->metrics.ascender = face->gf_glyph->font_bbx_xoff * 64 ;
size->metrics.descender = face->gf_glyph->font_bbx_yoff * 64 ;
size->metrics.max_advance = face->gf_glyph->font_bbx_w * 64 ;
return FT_Err_Ok;
}
@ -307,10 +311,11 @@
FT_Face face = FT_FACE( gf );
FT_Error error = FT_Err_Ok;
FT_Bitmap* bitmap = &slot->bitmap;
GF_BitmapRec glyph ;
GF_BitmapRec bm ;
FT_UNUSED( load_flags );
printf("Hi I am here in gf_load_glyphs");
if ( !face )
{
@ -326,34 +331,38 @@
FT_TRACE1(( "GF_Glyph_Load: glyph index %d\n", glyph_index ));
if ( glyph_index > 0 )
glyph_index--; /* revert to real index */
/*if ( glyph_index > 0 )
glyph_index--;
else
glyph_index = 0; /* the `.notdef' glyph */
glyph_index = 0;
*/
if ( glyph_index < 0 )
glyph_index = 0;
/* slot, bitmap => freetype, glyph => gflib */
glyph = gf->gf_glyph->bm_table[glyph_index];
/*
bitmap->rows = ;
bitmap->width = ;
bitmap->pitch = ; *//* (In BDF) same as FT_Bitmap.pitch */
bm = gf->gf_glyph->bm_table[glyph_index];
bitmap->rows = bm.mv_y ; /* Prelimiary */
bitmap->width = bm.mv_x ; /* Prelimiary */
/*bitmap->pitch = bm ; *//* Prelimiary */
/* note: we don't allocate a new array to hold the bitmap; */
/* we can simply point to it */
ft_glyphslot_set_bitmap( slot, glyph.bitmap );
ft_glyphslot_set_bitmap( slot, bm.bitmap );
slot->format = FT_GLYPH_FORMAT_BITMAP;
/*slot->bitmap_left = ;
slot->bitmap_top = ;
slot->bitmap_left = bm.off_x ; /* Prelimiary */
slot->bitmap_top = bm.off_y ; /* Prelimiary */
slot->metrics.horiAdvance = (FT_Pos) ;
slot->metrics.horiBearingX = (FT_Pos) ;
slot->metrics.horiBearingY = (FT_Pos) ;
slot->metrics.width = (FT_Pos) ;
slot->metrics.height = (FT_Pos) ;
slot->metrics.horiAdvance = (FT_Pos) bm.bbx_width - bm.off_x ; /* Prelimiary */
slot->metrics.horiBearingX = (FT_Pos) bm.off_x ; /* Prelimiary */
slot->metrics.horiBearingY = (FT_Pos) bm.off_y ; /* Prelimiary */
slot->metrics.width = (FT_Pos) ( bitmap->width * 64 ) ; /* Prelimiary */
slot->metrics.height = (FT_Pos) ( bitmap->rows * 64 ) ; /* Prelimiary */
ft_synthesize_vertical_metrics( &slot->metrics, bm.bbx_height * 64 );
ft_synthesize_vertical_metrics( &slot->metrics, );
*/
Exit:
return error;
}

2
src/gf/gfdrivr.h
View File

@ -33,7 +33,7 @@ FT_BEGIN_HEADER
FT_UInt bbx_width, bbx_height;
FT_UInt off_x, off_y;
FT_UInt mv_x, mv_y;
unsigned char *bitmap;
FT_Byte *bitmap;
FT_UInt raster;
} GF_BitmapRec, *GF_Bitmap;

298
src/gf/gflib.c
View File

@ -49,104 +49,87 @@ unsigned char bit_table[] = {
*
*/
long gf_read_intn(FILE*,int);
unsigned long gf_read_uintn(FILE*,int);
void gf_skip_n(FILE*,int);
long gf_read_intn(FT_Stream,int);
unsigned long gf_read_uintn(FT_Stream,int);
void gf_skip_n(FT_Stream,int);
#define READ_INT1(fp) (INT1)gf_read_intn((fp), 1)
#define READ_UINT1(fp) (UINT1)gf_read_uintn((fp), 1)
#define READ_INT2(fp) (INT2)gf_read_intn((fp), 2)
#define READ_UINT2(fp) (UINT2)gf_read_uintn((fp), 2)
#define READ_INT3(fp) (INT3)gf_read_intn((fp), 3)
#define READ_UINT3(fp) (UINT3)gf_read_uintn((fp), 3)
#define READ_INT4(fp) (INT4)gf_read_intn((fp), 4)
#define READ_UINT4(fp) (UINT4)gf_read_uintn((fp), 4)
#define READ_INTN(fp,n) (INT4)gf_read_intn((fp), (n))
#define READ_UINTN(fp,n) (UINT4)gf_read_uintn((fp), (n))
#define SKIP_N(fp,k) gf_skip_n((fp), (k))
#define READ_INT1( stream ) (INT1)gf_read_intn(( stream ), 1)
#define READ_UINT1( stream ) (UINT1)gf_read_uintn(( stream ), 1)
#define READ_INT2( stream ) (INT2)gf_read_intn(( stream ), 2)
#define READ_UINT2( stream ) (UINT2)gf_read_uintn(( stream ), 2)
#define READ_INT3( stream ) (INT3)gf_read_intn(( stream ), 3)
#define READ_UINT3( stream ) (UINT3)gf_read_uintn(( stream ), 3)
#define READ_INT4( stream ) (INT4)gf_read_intn(( stream ), 4)
#define READ_UINT4( stream ) (UINT4)gf_read_uintn(( stream ), 4)
#define READ_INTN( stream ,n) (INT4)gf_read_intn(( stream ), (n))
#define READ_UINTN( stream ,n) (UINT4)gf_read_uintn(( stream ), (n))
#define SKIP_N( stream ,k) gf_skip_n(( stream ), (k))
/*
* Reading a Number from file
* Reading a Number from stream
*/
unsigned long
gf_read_uintn(FILE* fp, int size)
gf_read_uintn(FT_Stream stream, int size)
{
unsigned long v;
FT_Error error = FT_Err_Ok;
v = 0L;
while (size >= 1)
{
v = v*256L + (unsigned long)getc(fp);
v = v*256L + (unsigned long)FT_Stream_ReadULong(stream, &error);
stream->pos-=3;
--size;
}
return v;
}
/* Preliminary */
unsigned long
gf_read_uint4(FT_Stream stream, int size)
{
unsigned long v;
FT_Error error = FT_Err_Ok;
v = 0L;
while (size >= 1)
{
v = v*256L + (unsigned long)FT_Stream_ReadULong(stream, &error);
--size;
}
return v;
}
long
gf_read_intn(FILE* fp, int size)
gf_read_intn(FT_Stream stream, int size)
{
long v;
v = (long)getc(fp) & 0xffL;
FT_Error error = FT_Err_Ok;
v = (long)FT_Stream_ReadULong(stream, &error) & 0xffL;
if (v & 0x80L)
v = v - 256L;
--size;
while (size >= 1)
{
v = v*256L + (unsigned long)getc(fp);
v = v*256L + (unsigned long)FT_Stream_ReadULong(stream, &error);
--size;
}
return v;
}
void
gf_skip_n(FILE* fp, int size)
gf_skip_n(FT_Stream stream, int size)
{
FT_Stream_Skip(stream, (FT_Long)size );
#if 0
while (size > 0)
{
(void)getc(fp);
--size;
}
#endif
}
unsigned long
gf_get_uintn(unsigned char *p, int size)
{
unsigned long v;
v = 0L;
while (size >= 1)
{
v = v*256L + (unsigned long) *(p++);
--size;
}
return v;
}
long
gf_get_intn(unsigned char *p, int size)
{
long v;
v = (long)*(p++) & 0xffL;
if (v & 0x80L)
v = v - 256L;
--size;
while (size >= 1)
{
v = v*256L + (unsigned long) *(p++);
--size;
}
return v;
}
/**************************************************************************
*
* API.
@ -154,7 +137,7 @@ unsigned char bit_table[] = {
*/
FT_LOCAL_DEF( FT_Error )
gf_read_glyph(FT_FILE* fp, GF_Bitmap bm)
gf_read_glyph(FT_Stream stream, GF_Bitmap bm)
{
long m, n;
int paint_sw;
@ -165,22 +148,22 @@ unsigned char bit_table[] = {
unsigned char *ptr;
FT_Error error = FT_Err_Ok;
switch (READ_UINT1(fp))
switch (READ_UINT1( stream ))
{
case GF_BOC:
SKIP_N(fp, 4);
SKIP_N(fp, 4);
min_m = READ_INT4(fp);
max_m = READ_INT4(fp);
min_n = READ_INT4(fp);
max_n = READ_INT4(fp);
SKIP_N( stream , 4);
SKIP_N( stream , 4);
min_m = READ_INT4( stream );
max_m = READ_INT4( stream );
min_n = READ_INT4( stream );
max_n = READ_INT4( stream );
break;
case GF_BOC1:
SKIP_N(fp, 1);
del_m = (INT4)READ_UINT1(fp);
max_m = (INT4)READ_UINT1(fp);
del_n = (INT4)READ_UINT1(fp);
max_n = (INT4)READ_UINT1(fp);
SKIP_N( stream , 1);
del_m = (INT4)READ_UINT1( stream );
max_m = (INT4)READ_UINT1( stream );
del_n = (INT4)READ_UINT1( stream );
max_n = (INT4)READ_UINT1( stream );
min_m = max_m - del_m;
min_n = max_n - del_n;
break;
@ -216,7 +199,7 @@ unsigned char bit_table[] = {
m = min_m;
n = max_n;
paint_sw = 0;
while ((instr = (int)READ_UINT1(fp)) != GF_EOC)
while ((instr = (int)READ_UINT1( stream )) != GF_EOC)
{
if (instr == GF_PAINT_0)
{
@ -240,7 +223,7 @@ unsigned char bit_table[] = {
case GF_PAINT1:
case GF_PAINT2:
case GF_PAINT3:
d = (UINT4)READ_UINTN(fp, (instr - GF_PAINT1 + 1));
d = (UINT4)READ_UINTN( stream, (instr - GF_PAINT1 + 1));
Paint:
if (paint_sw == 0)
{
@ -273,18 +256,18 @@ unsigned char bit_table[] = {
case GF_SKIP2:
case GF_SKIP3:
m = min_m;
n = n - (UINT4)READ_UINTN(fp, (instr - GF_SKIP1 + 1)) - 1;
n = n - (UINT4)READ_UINTN( stream, (instr - GF_SKIP1 + 1)) - 1;
paint_sw = 0;
break;
case GF_XXX1:
case GF_XXX2:
case GF_XXX3:
case GF_XXX4:
k = READ_UINTN(fp, instr - GF_XXX1 + 1);
SKIP_N(fp, k);
k = READ_UINTN( stream, instr - GF_XXX1 + 1);
SKIP_N( stream, k);
break;
case GF_YYY:
SKIP_N(fp, 4);
SKIP_N( stream, 4);
break;
case GF_NO_OP:
break;
@ -304,7 +287,8 @@ unsigned char bit_table[] = {
FT_LOCAL_DEF( FT_Error )
gf_load_font( FT_Stream stream,
GF_Face face )
FT_Memory extmemory,
GF_Glyph *goptr )
{
GF_Glyph go;
GF_Bitmap bm;
@ -314,83 +298,78 @@ unsigned char bit_table[] = {
INT4 w;
UINT4 code;
double dx, dy;
long ptr_post, ptr_p, ptr, optr, gptr;
long ptr_post, ptr_p, ptr, optr, gptr,tp;
int bc, ec, nchars, i;
FT_Error error = FT_Err_Ok;
FT_FILE *fp = (FT_FILE*)stream->descriptor.pointer ;/* Errors with STREAM_FILE( stream )
stream->descriptor.pointer is not allocating the file pointer properly*/
go = face->gf_glyph;
char* st = (char*)stream->pathname.pointer;
fp=fopen(st,"rb");
printf("\nHi I am here in gf_load_font 1 stream->pathname: %s %p\n\n", stream->pathname.pointer, *fp);
FT_Memory memory = extmemory; /* needed for FT_NEW */
FT_ULong offset;
go = NULL;
nchars = -1;
/* seek to post_post instr. */
fseek(fp, -5, SEEK_END);
printf("\nHi I am here in gf_load_font -1\n\n");
while ((d = READ_UINT1(fp)) == 223)
fseek(fp, -2, SEEK_CUR);
/* seek to post_post instr. */
/* fseek(fp, -5, SEEK_END); */
FT_STREAM_SEEK( stream->size - 5 );
printf("\nHi I am here in gf_load_font 0\n\n");
printf("\nHi I am here in gf_load_font d instr is %d\n\n",d);
if (d != GF_ID)
while ((d = READ_UINT1( stream )) == 223)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
FT_STREAM_SEEK( stream->pos -2 );
/* fseek(fp, -2, SEEK_CUR); */
}
printf("\nHi I am here in gf_load_font 1\n\n");
fseek(fp, -6, SEEK_CUR);
/* check if the code is post_post */
if (READ_UINT1(fp) != GF_POST_POST)
printf("\nHi I am here in gf_load_font 1\n\n");
if (d != GF_ID)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 2\n\n");
/* read pointer to post instr. */
if ((ptr_post = READ_UINT4(fp)) == -1)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
/* fseek(fp, -6, SEEK_CUR); */
FT_STREAM_SEEK( stream->pos -6 );
printf("\nHi I am here in gf_load_font 3\n\n");
/* goto post instr. and read it */
fseek(fp, ptr_post, SEEK_SET);
if (READ_UINT1(fp) != GF_POST)
/* check if the code is post_post */
if (READ_UINT1( stream ) != GF_POST_POST)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 4\n\n");
ptr_p = READ_UINT4(fp);
ds = READ_UINT4(fp);
check_sum = READ_UINT4(fp);
hppp = READ_UINT4(fp);
vppp = READ_UINT4(fp);
min_m = READ_INT4(fp);
max_m = READ_INT4(fp);
min_n = READ_INT4(fp);
max_n = READ_INT4(fp);
/* read pointer to post instr. */
if ((ptr_post = gf_read_uint4( stream,4 )) == -1)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 5\n\n");
gptr = ftell(fp);
/* goto post instr. and read it */
/* fseek(fp, ptr_post, SEEK_SET); */
FT_STREAM_SEEK( ptr_post );
if (d=READ_UINT1( stream ) != GF_POST)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 6\n\n");
ptr_p = READ_UINT4( stream );
ds = READ_UINT4( stream );
check_sum = READ_UINT4( stream );
hppp = READ_UINT4( stream );
vppp = READ_UINT4( stream );
min_m = READ_INT4( stream );
max_m = READ_INT4( stream );
min_n = READ_INT4( stream );
max_n = READ_INT4( stream );
printf("\nHi I am here in gf_load_font 7\n\n");
#if 0
gptr = ftell(fp);
#endif
#if 0
/* read min & max char code */
@ -429,19 +408,14 @@ printf("\nHi I am here in gf_load_font 6\n\n");
#endif
nchars = ec - bc + 1;
go= (GF_Glyph)malloc(sizeof(GF_GlyphRec)); /* FT_ALLOC(go, sizeof(GF_GlyphRec)); goto ErrExit; */
go= malloc(sizeof(GF_GlyphRec)); /* FT_ALLOC(go, sizeof(GF_GlyphRec)); goto ErrExit; */
/* Returning unnecessary errors TO BE CHECKED */
printf("\nHi I am here in gf_load_font 7\n\n");
go->bm_table = (GF_Bitmap)malloc(nchars* sizeof(GF_BitmapRec));/* FT_ALLOC_MULT(go->bm_table, sizeof(GF_BitmapRec), nchars); goto ErrExit; */
/* Returning unnecessary errors TO BE CHECKED */
printf("\nHi I am here in gf_load_font 8\n\n");
/*for (i = 0; i < nchars; i++)
go->bm_table[i] = NULL;*/
printf("\nHi I am here in gf_load_font 9\n\n");
for (i = 0; i < nchars; i++)
go->bm_table[i].bitmap = NULL;
go->ds = (double)ds/(1<<20);
go->hppp = (double)hppp/(1<<16);
@ -458,47 +432,51 @@ printf("\nHi I am here in gf_load_font 9\n\n");
fseek(fp, gptr, SEEK_SET);
#endif
printf("\nHi I am here in gf_load_font 9.5\n");
for ( ; ; )
{
if ((instr = READ_UINT1(fp)) == GF_POST_POST)
if ((instr = READ_UINT1( stream )) == GF_POST_POST)
break;
printf("\nHi I am here in gf_load_font 9.6 instr is %d\n\n", instr);
switch ((int)instr)
{
case GF_CHAR_LOC:
code = READ_UINT1(fp);
dx = (double)READ_INT4(fp)/(double)(1<<16);
dy = (double)READ_INT4(fp)/(double)(1<<16);
w = READ_INT4(fp);
ptr = READ_INT4(fp);
code = READ_UINT1( stream );
dx = (double)READ_INT4( stream )/(double)(1<<16);
dy = (double)READ_INT4( stream )/(double)(1<<16);
w = READ_INT4( stream );
ptr = READ_INT4( stream );
break;
printf("\nHi I am here in gf_load_font 9.7\n\n");
case GF_CHAR_LOC0:
code = READ_UINT1(fp);
dx = (double)READ_INT1(fp);
code = READ_UINT1( stream );
dx = (double)READ_INT1( stream );
dy = (double)0;
w = READ_INT4(fp);
ptr = READ_INT4(fp);
w = READ_INT4( stream );
ptr = READ_INT4( stream );
break;
default:
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 10\n\n");
optr = ft_ftell(fp);
ft_fseek(fp, ptr, SEEK_SET);
/* optr = ft_ftell(fp); */
optr = stream->pos;
/* ft_fseek(fp, ptr, SEEK_SET); */
FT_STREAM_SEEK( ptr );
bm = &go->bm_table[code - bc];
if (gf_read_glyph(fp, bm) < 0)
if (gf_read_glyph( stream, bm ) < 0)
goto ErrExit;
printf("\nHi I am here in gf_load_font 11\n\n");
bm->mv_x = dx;
bm->mv_y = dy;
ft_fseek(fp, optr, SEEK_SET);
/* ft_fseek(fp, optr, SEEK_SET); */
FT_STREAM_SEEK( ptr );
}
*goptr = go;
tp = ( go->code_max );
printf("tp go->code_max %d\n",go->code_max);
return error;
ErrExit:
printf("*ERROR\n");
if (go != NULL)
@ -506,11 +484,11 @@ printf("\nHi I am here in gf_load_font 11\n\n");
if (go->bm_table != NULL)
{
for (i = 0; i < nchars; i++){}
/* FT_FREE(go->bm_table[i].bitmap); */
/* FT_FREE(go->bm_table[i].bitmap);*/
}
/* FT_FREE(go->bm_table); */ /* Returning unnecessary errors TO BE CHECKED */
/* FT_FREE(go->bm_table);*/ /* Returning unnecessary errors TO BE CHECKED */
}
/* FT_FREE(go); */ /* Returning unnecessary errors TO BE CHECKED */
/* FT_FREE(go); *//* Returning unnecessary errors TO BE CHECKED */
}