mirror of https://github.com/ZDoom/raze-gles.git
Make it possible to build a standalone libcache1d.so.
Exporting only (de)compression functions. Also, different reader/writer functions can be set. git-svn-id: https://svn.eduke32.com/eduke32@3153 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned
parent
4b66769bcb
commit
ea5829f36c
|
|
@ -359,6 +359,10 @@ $(OBJ)/%.$o: $(RSRC)/%.c
|
|||
$(COMPILE_STATUS)
|
||||
if $(COMPILER) $(OURCFLAGS) -c $< -o $@; then $(COMPILE_OK); else $(COMPILE_FAILED); fi
|
||||
|
||||
libcache1d.so: $(SRC)/cache1d.c
|
||||
$(COMPILE_STATUS)
|
||||
if $(COMPILER) -Wall -Wextra -DCACHE1D_COMPRESS_ONLY -shared $< -o $@; then $(COMPILE_OK); else $(COMPILE_FAILED); fi
|
||||
|
||||
$(OBJ)/editor_banner.$o: $(RSRC)/editor_banner.c
|
||||
echo "#include <gdk-pixbuf/gdk-pixdata.h>" > $@
|
||||
echo "extern const GdkPixdata startbanner_pixdata;" >> $@
|
||||
|
|
|
|||
|
|
@ -5,6 +5,26 @@
|
|||
// This file has been modified from Ken Silverman's original release
|
||||
// by Jonathon Fowler (jf@jonof.id.au)
|
||||
|
||||
|
||||
#ifdef CACHE1D_COMPRESS_ONLY
|
||||
// Standalone libcache1d.so containing only the compression/decompression
|
||||
// functions.
|
||||
# include <stdint.h>
|
||||
# include <stdio.h>
|
||||
# include <string.h>
|
||||
# include <stddef.h>
|
||||
|
||||
# define BFILE FILE
|
||||
# define C1D_STATIC
|
||||
# define B_LITTLE16(x) (x)
|
||||
# define B_LITTLE32(x) (x)
|
||||
# define Bmemset memset
|
||||
# define Bmemcpy memcpy
|
||||
# define bsize_t size_t
|
||||
#else
|
||||
// cache1d.o for EDuke32
|
||||
# define C1D_STATIC static
|
||||
|
||||
#include "compat.h"
|
||||
#ifdef _WIN32
|
||||
// for FILENAME_CASE_CHECK
|
||||
|
|
@ -1287,6 +1307,10 @@ failure:
|
|||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
#endif // #ifdef CACHE1D_COMPRESS_ONLY / else
|
||||
|
||||
|
||||
//Internal LZW variables
|
||||
#define LZWSIZE 16384 //Watch out for shorts!
|
||||
#define LZWSIZEPAD (LZWSIZE+(LZWSIZE>>4))
|
||||
|
|
@ -1298,7 +1322,43 @@ static int16_t lzwbuf2[LZWSIZEPAD], lzwbuf3[LZWSIZEPAD];
|
|||
static int32_t lzwcompress(const char *lzwinbuf, int32_t uncompleng, char *lzwoutbuf);
|
||||
static int32_t lzwuncompress(const char *lzwinbuf, int32_t compleng, char *lzwoutbuf);
|
||||
|
||||
int32_t kdfread(void *buffer, bsize_t dasizeof, bsize_t count, int32_t fil)
|
||||
#ifndef CACHE1D_COMPRESS_ONLY
|
||||
static int32_t kdfread_func(intptr_t fil, void *outbuf, int32_t length)
|
||||
{
|
||||
return kread((int32_t)fil, outbuf, length);
|
||||
}
|
||||
|
||||
static void dfwrite_func(intptr_t fp, const void *inbuf, int32_t length)
|
||||
{
|
||||
Bfwrite(inbuf, length, 1, (BFILE *)fp);
|
||||
}
|
||||
#else
|
||||
# define kdfread_func NULL
|
||||
# define dfwrite_func NULL
|
||||
#endif
|
||||
|
||||
// These two follow the argument order of the C functions "read" and "write":
|
||||
// handle, buffer, length.
|
||||
C1D_STATIC int32_t (*c1d_readfunc)(intptr_t, void *, int32_t) = kdfread_func;
|
||||
C1D_STATIC void (*c1d_writefunc)(intptr_t, const void *, int32_t) = dfwrite_func;
|
||||
|
||||
|
||||
////////// COMPRESSED READ //////////
|
||||
|
||||
static uint32_t decompress_part(int16_t *lengptr, intptr_t f, uint32_t *kgoalptr)
|
||||
{
|
||||
int32_t leng;
|
||||
if (c1d_readfunc(f, lengptr, 2) != 2)
|
||||
return 1;
|
||||
leng = B_LITTLE16(*lengptr);
|
||||
if (c1d_readfunc(f,lzwcompbuf, leng) != leng)
|
||||
return 1;
|
||||
*kgoalptr = lzwuncompress(lzwcompbuf, *lengptr, lzwrawbuf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Read from 'f' into 'buffer'.
|
||||
C1D_STATIC int32_t c1d_read_compressed(void *buffer, bsize_t dasizeof, bsize_t count, intptr_t f)
|
||||
{
|
||||
uint32_t i, j, k, kgoal;
|
||||
int16_t leng;
|
||||
|
|
@ -1312,20 +1372,18 @@ int32_t kdfread(void *buffer, bsize_t dasizeof, bsize_t count, int32_t fil)
|
|||
|
||||
ptr = (char *)buffer;
|
||||
|
||||
if (kread(fil,&leng,2) != 2) return -1; leng = B_LITTLE16(leng);
|
||||
if (kread(fil,lzwcompbuf,(int32_t)leng) != leng) return -1;
|
||||
k = 0; kgoal = lzwuncompress(lzwcompbuf,(int32_t)leng,lzwrawbuf);
|
||||
k = decompress_part(&leng, f, &kgoal);
|
||||
if (k) return -1;
|
||||
|
||||
copybufbyte(lzwrawbuf,ptr,(int32_t)dasizeof);
|
||||
Bmemcpy(ptr, lzwrawbuf, (int32_t)dasizeof);
|
||||
k += (int32_t)dasizeof;
|
||||
|
||||
for (i=1; i<count; i++)
|
||||
{
|
||||
if (k >= kgoal)
|
||||
{
|
||||
if (kread(fil,&leng,2) != 2) return -1; leng = B_LITTLE16(leng);
|
||||
if (kread(fil,lzwcompbuf,(int32_t)leng) != leng) return -1;
|
||||
k = 0; kgoal = lzwuncompress(lzwcompbuf,(int32_t)leng,lzwrawbuf);
|
||||
k = decompress_part(&leng, f, &kgoal);
|
||||
if (k) return -1;
|
||||
}
|
||||
|
||||
for (j=0; j<dasizeof; j++)
|
||||
|
|
@ -1338,17 +1396,26 @@ int32_t kdfread(void *buffer, bsize_t dasizeof, bsize_t count, int32_t fil)
|
|||
return count;
|
||||
}
|
||||
|
||||
static uint32_t compress_part(uint32_t k, BFILE *fil)
|
||||
int32_t kdfread(void *buffer, bsize_t dasizeof, bsize_t count, int32_t fil)
|
||||
{
|
||||
return c1d_read_compressed(buffer, dasizeof, count, (intptr_t)fil);
|
||||
}
|
||||
|
||||
|
||||
////////// COMPRESSED WRITE //////////
|
||||
|
||||
static uint32_t compress_part(uint32_t k, intptr_t f)
|
||||
{
|
||||
int16_t leng, swleng;
|
||||
|
||||
leng = (int16_t)lzwcompress(lzwrawbuf,k,lzwcompbuf); swleng = B_LITTLE16(leng);
|
||||
Bfwrite(&swleng,2,1,fil); Bfwrite(lzwcompbuf,(int32_t)leng,1,fil);
|
||||
|
||||
leng = (int16_t)lzwcompress(lzwrawbuf,k,lzwcompbuf);
|
||||
swleng = B_LITTLE16(leng);
|
||||
c1d_writefunc(f, &swleng, 2);
|
||||
c1d_writefunc(f, lzwcompbuf, leng);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void dfwrite(const void *buffer, bsize_t dasizeof, bsize_t count, BFILE *fil)
|
||||
// Write from 'buffer' to 'f'.
|
||||
C1D_STATIC void c1d_write_compressed(const void *buffer, bsize_t dasizeof, bsize_t count, intptr_t f)
|
||||
{
|
||||
uint32_t i, j, k;
|
||||
const char *ptr;
|
||||
|
|
@ -1365,7 +1432,7 @@ void dfwrite(const void *buffer, bsize_t dasizeof, bsize_t count, BFILE *fil)
|
|||
|
||||
k = dasizeof;
|
||||
if (k > LZWSIZE-dasizeof)
|
||||
k = compress_part(k, fil);
|
||||
k = compress_part(k, f);
|
||||
|
||||
for (i=1; i<count; i++)
|
||||
{
|
||||
|
|
@ -1374,15 +1441,22 @@ void dfwrite(const void *buffer, bsize_t dasizeof, bsize_t count, BFILE *fil)
|
|||
|
||||
k += dasizeof;
|
||||
if (k > LZWSIZE-dasizeof)
|
||||
k = compress_part(k, fil);
|
||||
k = compress_part(k, f);
|
||||
|
||||
ptr += dasizeof;
|
||||
}
|
||||
|
||||
if (k > 0)
|
||||
compress_part(k, fil);
|
||||
compress_part(k, f);
|
||||
}
|
||||
|
||||
void dfwrite(const void *buffer, bsize_t dasizeof, bsize_t count, BFILE *fil)
|
||||
{
|
||||
c1d_write_compressed(buffer, dasizeof, count, (intptr_t)fil);
|
||||
}
|
||||
|
||||
////////// CORE COMPRESSION FUNCTIONS //////////
|
||||
|
||||
static int32_t lzwcompress(const char *lzwinbuf, int32_t uncompleng, char *lzwoutbuf)
|
||||
{
|
||||
int32_t i, addr, addrcnt, *intptr;
|
||||
|
|
@ -1486,7 +1560,7 @@ static int32_t lzwuncompress(const char *lzwinbuf, int32_t compleng, char *lzwou
|
|||
|
||||
if (strtot == 0)
|
||||
{
|
||||
copybuf(lzwinbuf+4,lzwoutbuf,((compleng-4)+3)>>2);
|
||||
Bmemcpy(lzwoutbuf, lzwinbuf+4, (compleng-4)+3);
|
||||
return uncompleng;
|
||||
}
|
||||
|
||||
|
|
@ -1526,27 +1600,6 @@ static int32_t lzwuncompress(const char *lzwinbuf, int32_t compleng, char *lzwou
|
|||
return uncompleng;
|
||||
}
|
||||
|
||||
|
||||
#if 0
|
||||
int32_t dfread(void *buffer, bsize_t dasizeof, bsize_t count, BFILE *fil)
|
||||
{
|
||||
// recipe to get dfread from kdfread: e.g.
|
||||
// kread(fil,&leng,2) != 2
|
||||
// -->
|
||||
// Bfread(&leng,2,1,fil) != 1
|
||||
// (take care!)
|
||||
}
|
||||
|
||||
void kdfwrite(const void *buffer, bsize_t dasizeof, bsize_t count, int32_t fil)
|
||||
{
|
||||
// recipe to get kdfwrite from dfwrite: e.g.
|
||||
// Bfwrite(&swleng,2,1,fil);
|
||||
// -->
|
||||
// Bwrite(fil,&swleng,2);
|
||||
// (take care!)
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* vim:ts=4:sw=4:
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue