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[gf] Complete stream support and some minor changes for testing.

This commit is contained in:
Parth Wazurkar 2018-06-27 03:15:08 +05:30
parent 2bea8dbd49
commit 0532670c02
2 changed files with 96 additions and 95 deletions
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20
src/gf/gfdrivr.c
View File

@ -142,7 +142,7 @@
memory = FT_FACE_MEMORY( face );
gf_free_font( face->gf_glyph );
gf_free_font( face->gf_glyph, memory );
/* FT_FREE( ); */
}
@ -167,7 +167,7 @@
FT_TRACE2(( "GF driver\n" ));
/* 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");*/
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;
@ -195,14 +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");*/
printf("Hi I am here2\n");
gfface->family_name = NULL;
gfface->num_glyphs = (FT_Long)(go->code_max - go->code_min + 1 );
gfface->num_fixed_sizes = 1;
/*printf("Hi I am here3\n");*/
printf("Hi I am here3\n");
if ( FT_NEW_ARRAY( gfface->available_sizes, 1 ) )
goto Exit;
/*printf("Hi I am here4\n");*/
printf("Hi I am here4\n");
{
FT_Bitmap_Size* bsize = gfface->available_sizes;
FT_UShort x_res, y_res;
@ -218,7 +218,7 @@
bsize->y_ppem = face->gf_glyph->font_bbx_yoff ;
bsize->x_ppem = face->gf_glyph->font_bbx_xoff ;
}
/*printf("Hi I am here5\n");*/
printf("Hi I am here5\n");
/* Charmaps */
@ -236,14 +236,14 @@
if ( error )
goto Fail;
/*printf("Hi I am here completed GF_Face_Init1\n");*/
printf("Hi I am here completed GF_Face_Init1\n");
}
/*printf("Hi I am here6\n");*/
printf("Hi I am here6\n");
Fail:
GF_Face_Done( gfface );
/* GF_Face_Done( gfface ); */
Exit:
/* printf("Hi I am here completed GF_Face_Init2 %ld\n",gfface->num_glyphs);*/
printf("Hi I am here completed GF_Face_Init2 %ld\n",gfface->num_glyphs);
return error;
}

171
src/gf/gflib.c
View File

@ -43,80 +43,71 @@
unsigned char bit_table[] = {
0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
/**************************************************************************
*
* GF font utility functions.
*
*/
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( 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 SKIP_N( stream ,k) gf_skip_n(( stream ), (k))
#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 stream
*/
unsigned long
gf_read_uintn(FT_Stream stream, int size)
READ_UINT1(FT_Stream stream)
{
unsigned long v;
FT_Error error = FT_Err_Ok;
v = 0L;
while (size >= 1)
{
v = v*256L + (unsigned long)FT_Stream_ReadULong(stream, &error);
stream->pos-=3;
--size;
}
unsigned long v,k;
FT_Error error= FT_Err_Ok;
FT_Byte tp;
FT_READ_BYTE(tp);
v =(unsigned long)tp;
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(FT_Stream stream, int size)
{
long v;
FT_Error error = FT_Err_Ok;
v = (long)FT_Stream_ReadULong(stream, &error) & 0xffL;
FT_Byte tp;
FT_Error error= FT_Err_Ok;
unsigned long z ;
FT_READ_BYTE(tp);
z= (unsigned long)tp;
v = (long)z & 0xffL;
if (v & 0x80L)
v = v - 256L;
--size;
while (size >= 1)
{
v = v*256L + (unsigned long)FT_Stream_ReadULong(stream, &error);
FT_READ_BYTE(tp);
z= (unsigned long)tp;
v = v*256L + z;
--size;
}
return v;
}
unsigned long
gf_read_uintn(FT_Stream stream, int size)
{
unsigned long v,k;
FT_Error error = FT_Err_Ok;
FT_Byte tp;
v = 0L;
while (size >= 1)
{
FT_READ_BYTE(tp);
k =(unsigned long)tp;
v = v*256L + (unsigned long)k;
--size;
}
return v;
}
void
gf_skip_n(FT_Stream stream, int size)
{
@ -157,6 +148,7 @@ unsigned char bit_table[] = {
max_m = READ_INT4( stream );
min_n = READ_INT4( stream );
max_n = READ_INT4( stream );
break;
case GF_BOC1:
SKIP_N( stream , 1);
@ -166,9 +158,10 @@ unsigned char bit_table[] = {
max_n = (INT4)READ_UINT1( stream );
min_m = max_m - del_m;
min_n = max_n - del_n;
break;
default:
goto Exit;
return -1;
}
w = max_m - min_m + 1;
@ -176,13 +169,13 @@ unsigned char bit_table[] = {
if ((w < 0) || (h < 0))
{
error = FT_THROW( Invalid_File_Format );
goto Exit;
return -1;
}
if ((bm->bitmap = (unsigned char*)malloc(h*((w+7)/8))) == NULL)
{
error = FT_THROW( Invalid_File_Format );
goto Exit;
return -1;
}
memset(bm->bitmap, 0, h*((w+7)/8));
@ -275,13 +268,12 @@ unsigned char bit_table[] = {
/* FT_FREE(bm->bitmap); */ /* Returning unnecessary errors TO BE CHECKED */
bm->bitmap = NULL;
error = FT_THROW( Invalid_File_Format );
goto Exit;
return -1;
}
}
}
Exit:
return error;
return 0;
}
@ -298,75 +290,82 @@ unsigned char bit_table[] = {
INT4 w;
UINT4 code;
double dx, dy;
long ptr_post, ptr_p, ptr, optr, gptr,tp;
long ptr_post, ptr_p, ptr, optr, gptr;
int bc, ec, nchars, i;
FT_Error error = FT_Err_Ok;
FT_Error error = FT_Err_Ok, error1;
FT_Memory memory = extmemory; /* needed for FT_NEW */
FT_ULong offset;
FT_Byte tp;
go = NULL;
nchars = -1;
printf("\nHi I am here in gf_load_font -1\n\n");
/* seek to post_post instr. */
/* fseek(fp, -5, SEEK_END); */
FT_STREAM_SEEK( stream->size - 5 );
FT_STREAM_SEEK( stream->size - 1 );
printf("\nHi I am here in gf_load_font 0\n\n");
while ((d = READ_UINT1( stream )) == 223)
while ( d= READ_UINT1( stream ) == 223)
{
FT_STREAM_SEEK( stream->pos -2 );
/* fseek(fp, -2, SEEK_CUR); */
}
FT_STREAM_SEEK( stream->pos -1 );
d= READ_UINT1( stream );
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");
/* fseek(fp, -6, SEEK_CUR); */
FT_STREAM_SEEK( stream->pos -6 );
printf("\nHi I am here in gf_load_font 3\n\n");
/* 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");
/* read pointer to post instr. */
if ((ptr_post = gf_read_uint4( stream,4 )) == -1)
FT_READ_ULONG( ptr_post );
if (ptr_post == -1)
{
error = FT_THROW( Invalid_File_Format );
goto ErrExit;
}
printf("\nHi I am here in gf_load_font 5\n\n");
/* goto post instr. and read it */
/* fseek(fp, ptr_post, SEEK_SET); */
FT_STREAM_SEEK( ptr_post );
if (d=READ_UINT1( stream ) != GF_POST)
if (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 );
FT_READ_ULONG( ptr_p ) ;
FT_READ_ULONG( ds ) ;
FT_READ_ULONG( check_sum );
FT_READ_ULONG( hppp ) ;
FT_READ_ULONG( vppp ) ;
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
@ -408,11 +407,15 @@ printf("\nHi I am here in gf_load_font 7\n\n");
#endif
nchars = ec - bc + 1;
go= malloc(sizeof(GF_GlyphRec)); /* FT_ALLOC(go, sizeof(GF_GlyphRec)); goto ErrExit; */
/* Returning unnecessary errors TO BE CHECKED */
/*go= malloc(sizeof(GF_GlyphRec));*/
if( FT_ALLOC(go, sizeof(GF_GlyphRec)) )
goto ErrExit;
/*go->bm_table = (GF_Bitmap)malloc(nchars* sizeof(GF_BitmapRec));*/
if( FT_ALLOC_MULT(go->bm_table, sizeof(GF_BitmapRec), nchars) )
goto ErrExit;
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 */
for (i = 0; i < nchars; i++)
go->bm_table[i].bitmap = NULL;
@ -469,12 +472,10 @@ printf("\nHi I am here in gf_load_font 7\n\n");
bm->mv_x = dx;
bm->mv_y = dy;
/* ft_fseek(fp, optr, SEEK_SET); */
FT_STREAM_SEEK( ptr );
FT_STREAM_SEEK( optr );
}
*goptr = go;
tp = ( go->code_max );
printf("tp go->code_max %d\n",go->code_max);
return error;
ErrExit:
@ -483,29 +484,29 @@ printf("\nHi I am here in gf_load_font 7\n\n");
{
if (go->bm_table != NULL)
{
for (i = 0; i < nchars; i++){}
/* FT_FREE(go->bm_table[i].bitmap);*/
for (i = 0; i < nchars; i++)
FT_FREE(go->bm_table[i].bitmap);
}
/* FT_FREE(go->bm_table);*/ /* Returning unnecessary errors TO BE CHECKED */
FT_FREE(go->bm_table);
}
/* FT_FREE(go); *//* Returning unnecessary errors TO BE CHECKED */
FT_FREE(go);
}
FT_LOCAL_DEF( void )
gf_free_font( GF_Glyph go )
gf_free_font( GF_Glyph go, FT_Memory memory)
{
int i=0, nchars =sizeof(go->bm_table);
if (go != NULL)
{
if (go->bm_table != NULL)
{
for (i = 0; i < nchars; i++){}
/* FT_FREE(go->bm_table[i].bitmap); */ /* To be verified from Vflib */
for (i = 0; i < nchars; i++)
FT_FREE(go->bm_table[i].bitmap); /* To be verified from Vflib */
}
/* FT_FREE(go->bm_table); */ /* Returning unnecessary errors TO BE CHECKED */
FT_FREE(go->bm_table);
}
/* FT_FREE(go); */ /* Returning unnecessary errors TO BE CHECKED */
FT_FREE(go);
}