mirror of
https://github.com/ZDoom/raze-gles.git
synced 2025-03-09 10:11:04 +00:00
polymost.c: factor out 2 x 3x dup'd I/O code for DXT filter functions.
git-svn-id: https://svn.eduke32.com/eduke32@3383 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned
parent
8bb14fa13e
commit
0f72135a04
1 changed files with 98 additions and 183 deletions
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@ -6484,6 +6484,7 @@ void polymost_precache(int32_t dapicnum, int32_t dapalnum, int32_t datype)
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#endif
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}
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#ifdef USE_OPENGL
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static uint16_t hicosub(uint16_t c)
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{
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int32_t r, g, b;
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@ -6502,6 +6503,86 @@ static uint16_t hicoadd(uint16_t c)
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return((r<<11)+(g<<5)+b);
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}
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static void dxt_handle_io(int32_t fil, int32_t len, void *midbuf, char *packbuf)
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{
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void *writebuf;
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int32_t j, cleng;
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if (glusetexcache == 2)
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{
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cleng = qlz_compress(midbuf, packbuf, len, state_compress);
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if (cleng == 0 || cleng > len-1)
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{
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cleng = len;
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writebuf = midbuf;
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}
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else writebuf = packbuf;
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}
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else
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{
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cleng = len;
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writebuf = midbuf;
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}
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j = B_LITTLE32(cleng);
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Bwrite(fil, &j, sizeof(j));
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Bwrite(fil, writebuf, cleng);
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}
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static int32_t dedxt_handle_io(int32_t fil, int32_t j /* TODO: better name */,
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void *midbuf, char *packbuf, int32_t ispacked)
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{
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void *inbuf;
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int32_t cleng;
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(int32_t)))
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{
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cleng = *(int32_t *)(memcachedata + cachepos);
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cachepos += sizeof(int32_t);
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += sizeof(int32_t);
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if (Bread(fil, &cleng, sizeof(int32_t)) < (signed)sizeof(int32_t))
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return -1;
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cleng = B_LITTLE32(cleng);
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}
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inbuf = (ispacked && cleng < j) ? packbuf : midbuf;
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if (memcachedata && memcachesize >= (signed)(cachepos + cleng))
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{
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if (ispacked && cleng < j)
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{
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if (qlz_decompress((const char *)memcachedata + cachepos, midbuf, state_decompress) == 0)
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{
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cachepos += cleng;
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return -1;
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}
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}
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else Bmemcpy(inbuf, memcachedata + cachepos, cleng);
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cachepos += cleng;
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += cleng;
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if (Bread(fil, inbuf, cleng) < cleng)
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return -1;
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if (ispacked && cleng < j)
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if (qlz_decompress(packbuf, midbuf, state_decompress) == 0)
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return -1;
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}
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return 0;
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}
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/*
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Description of Ken's filter to improve LZW compression of DXT1 format by ~15%: (as tested with the HRP)
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@ -6540,11 +6621,9 @@ Description of Ken's filter to improve LZW compression of DXT1 format by ~15%: (
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I think this improved compression by a few % :)
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*/
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#ifdef USE_OPENGL
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int32_t dxtfilter(int32_t fil, const texcachepicture *pict, const char *pic, void *midbuf, char *packbuf, uint32_t miplen)
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{
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void *writebuf;
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uint32_t j, k, offs, stride, cleng;
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uint32_t j, k, offs, stride;
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char *cptr;
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if ((pict->format == (signed) B_LITTLE32(GL_COMPRESSED_RGB_S3TC_DXT1_EXT)) ||
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@ -6560,25 +6639,8 @@ int32_t dxtfilter(int32_t fil, const texcachepicture *pict, const char *pic, voi
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for (k=0; k<8; k++) *cptr++ = pic[k];
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for (j=stride; (unsigned)j<miplen; j+=stride)
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for (k=0; k<8; k++) *cptr++ = pic[j+k];
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if (glusetexcache == 2)
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{
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j = (miplen/stride)<<3;
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cleng = qlz_compress(midbuf,packbuf,j,state_compress);
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if (cleng == 0 || cleng > j-1)
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{
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cleng = j;
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writebuf = midbuf;
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}
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else writebuf = packbuf;
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}
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else
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{
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cleng = (miplen/stride)<<3;
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writebuf = midbuf;
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}
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j = B_LITTLE32(cleng);
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Bwrite(fil,&j,sizeof(j));
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Bwrite(fil,writebuf,cleng);
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dxt_handle_io(fil, (miplen/stride)<<3, midbuf, packbuf);
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}
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//rgb0,rgb1
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@ -6586,25 +6648,8 @@ int32_t dxtfilter(int32_t fil, const texcachepicture *pict, const char *pic, voi
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for (k=0; k<=2; k+=2)
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for (j=0; (unsigned)j<miplen; j+=stride)
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{ *(int16_t *)cptr = hicosub(*(int16_t *)(&pic[offs+j+k])); cptr += 2; }
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if (glusetexcache == 2)
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{
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j = (miplen/stride)<<2;
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cleng = qlz_compress(midbuf,packbuf,j,state_compress);
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if (cleng == 0 || cleng > j-1)
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{
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cleng = j;
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writebuf = midbuf;
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}
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else writebuf = packbuf;
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}
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else
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{
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cleng = (miplen/stride)<<2;
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writebuf = midbuf;
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}
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j = B_LITTLE32(cleng);
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Bwrite(fil,&j,sizeof(j));
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Bwrite(fil,writebuf,cleng);
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dxt_handle_io(fil, (miplen/stride)<<2, midbuf, packbuf);
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//index_4x4
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cptr = (char *)midbuf;
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@ -6617,86 +6662,29 @@ int32_t dxtfilter(int32_t fil, const texcachepicture *pict, const char *pic, voi
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cptr[3] = ((c2[0]>>6)&3) + (((c2[1]>>6)&3)<<2) + (((c2[2]>>6)&3)<<4) + (((c2[3]>>6)&3)<<6);
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cptr += 4;
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}
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if (glusetexcache == 2)
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{
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j = (miplen/stride)<<2;
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cleng = qlz_compress(midbuf,packbuf,j,state_compress);
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if (cleng == 0 || cleng > j-1)
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{
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cleng = j;
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writebuf = midbuf;
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}
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else writebuf = packbuf;
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}
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else
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{
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cleng = (miplen/stride)<<2;
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writebuf = midbuf;
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}
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j = B_LITTLE32(cleng);
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Bwrite(fil,&j,sizeof(j));
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Bwrite(fil,writebuf,cleng);
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dxt_handle_io(fil, (miplen/stride)<<2, midbuf, packbuf);
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return 0;
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}
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int32_t dedxtfilter(int32_t fil, const texcachepicture *pict, char *pic, void *midbuf, char *packbuf, int32_t ispacked)
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{
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void *inbuf;
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int32_t j, k, offs, stride, cleng;
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int32_t j, k, offs, stride;
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char *cptr;
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if (ispacked) inbuf = packbuf; else inbuf = midbuf;
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if ((pict->format == (signed) B_LITTLE32(GL_COMPRESSED_RGB_S3TC_DXT1_EXT)) ||
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(pict->format == (signed) B_LITTLE32(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT))) { offs = 0; stride = 8; }
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else if ((pict->format == (signed) B_LITTLE32(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT)) ||
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(pict->format == (signed) B_LITTLE32(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT))) { offs = 8; stride = 16; }
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else { offs = 0; stride = 8; }
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if (stride == 16) //If DXT3...
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{
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//alpha_4x4
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(int32_t)))
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{
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cleng = *(int32_t *)(memcachedata + cachepos);
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cachepos += sizeof(int32_t);
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += sizeof(int32_t);
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if (Bread(fil,&cleng,sizeof(int32_t)) < (signed)sizeof(int32_t)) return -1;
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cleng = B_LITTLE32(cleng);
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}
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j = (pict->size/stride)*8;
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if (ispacked && cleng < j) inbuf = packbuf; else inbuf = midbuf;
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if (memcachedata && memcachesize >= (signed)(cachepos + cleng))
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{
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if (ispacked && cleng < j)
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{
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if (qlz_decompress((const char *)memcachedata + cachepos,midbuf,state_decompress) == 0)
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{
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cachepos += cleng;
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if (dedxt_handle_io(fil, (pict->size/stride)*8, midbuf, packbuf, ispacked))
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return -1;
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}
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}
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else Bmemcpy(inbuf, memcachedata + cachepos, cleng);
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cachepos += cleng;
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += cleng;
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if (Bread(fil,inbuf,cleng) < cleng) return -1;
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if (ispacked && cleng < j)
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if (qlz_decompress(packbuf,midbuf,state_decompress) == 0) return -1;
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}
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cptr = (char *)midbuf;
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for (k=0; k<8; k++) pic[k] = *cptr++;
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@ -6705,45 +6693,8 @@ int32_t dedxtfilter(int32_t fil, const texcachepicture *pict, char *pic, void *m
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}
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//rgb0,rgb1
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(int32_t)))
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{
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cleng = *(int32_t *)(memcachedata + cachepos);
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cachepos += sizeof(int32_t);
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += sizeof(int32_t);
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if (Bread(fil,&cleng,sizeof(int32_t)) < (signed)sizeof(int32_t)) return -1;
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cleng = B_LITTLE32(cleng);
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}
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j = (pict->size/stride)*4;
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if (ispacked && cleng < j) inbuf = packbuf; else inbuf = midbuf;
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if (memcachedata && memcachesize >= (signed)(cachepos + cleng))
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{
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if (ispacked && cleng < j)
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{
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if (qlz_decompress((const char *)memcachedata + cachepos,midbuf,state_decompress) == 0)
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{
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cachepos += cleng;
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if (dedxt_handle_io(fil, (pict->size/stride)*4, midbuf, packbuf, ispacked))
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return -1;
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}
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}
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else Bmemcpy(inbuf, memcachedata + cachepos, cleng);
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cachepos += cleng;
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += cleng;
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if (Bread(fil,inbuf,cleng) < cleng) return -1;
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if (ispacked && cleng < j)
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if (qlz_decompress(packbuf,midbuf,state_decompress) == 0) return -1;
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}
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cptr = (char *)midbuf;
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for (k=0; k<=2; k+=2)
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@ -6756,45 +6707,8 @@ int32_t dedxtfilter(int32_t fil, const texcachepicture *pict, char *pic, void *m
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}
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//index_4x4:
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(int32_t)))
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{
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cleng = *(int32_t *)(memcachedata + cachepos);
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cachepos += sizeof(int32_t);
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += sizeof(int32_t);
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if (Bread(fil,&cleng,sizeof(int32_t)) < (signed)sizeof(int32_t)) return -1;
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cleng = B_LITTLE32(cleng);
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}
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j = (pict->size/stride)*4;
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if (ispacked && cleng < j) inbuf = packbuf; else inbuf = midbuf;
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if (memcachedata && memcachesize >= (signed)(cachepos + cleng))
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{
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if (ispacked && cleng < j)
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{
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if (qlz_decompress((const char *)memcachedata + cachepos,midbuf,state_decompress) == 0)
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{
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cachepos += cleng;
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if (dedxt_handle_io(fil, (pict->size/stride)*4, midbuf, packbuf, ispacked))
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return -1;
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}
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}
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else Bmemcpy(inbuf, memcachedata + cachepos, cleng);
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cachepos += cleng;
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}
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else
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{
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Blseek(fil, cachepos, BSEEK_SET);
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cachepos += cleng;
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if (Bread(fil,inbuf,cleng) < cleng) return -1;
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if (ispacked && cleng < j)
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if (qlz_decompress(packbuf,midbuf,state_decompress) == 0) return -1;
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}
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cptr = (char *)midbuf;
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for (j=0; j<pict->size; j+=stride)
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@ -6805,6 +6719,7 @@ int32_t dedxtfilter(int32_t fil, const texcachepicture *pict, char *pic, void *m
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pic[j+offs+7] = ((cptr[0]>>6)&3) + (((cptr[1]>>6)&3)<<2) + (((cptr[2]>>6)&3)<<4) + (((cptr[3]>>6)&3)<<6);
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cptr += 4;
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}
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return 0;
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}
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#endif
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