mirror of https://github.com/ZDoom/raze-gles.git
polymost.c: a couple of {tex,mem}cache cleanups / fixes.
- Stop using memcache on some other failure paths, particularly when failing to read from the on-disk texcache. - Factor out cache reading code (3x). - Fix endianness issues affecting big-enadian systems (one introduced by r3382, one existing before). Comment each B_LITTLE32 with whether we're converting from native to on-disk (little) endianness or back. git-svn-id: https://svn.eduke32.com/eduke32@3386 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned
parent
a4cdd62e25
commit
7872c0141f
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@ -55,8 +55,6 @@ int32_t polymost_printext256(int32_t xpos, int32_t ypos, int16_t col, int16_t ba
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extern float curpolygonoffset;
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extern int32_t cachefilehandle;
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extern FILE *cacheindexptr;
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extern int32_t cachepos;
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struct cacheitem_t
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@ -265,12 +265,14 @@ void drawline2d(float x0, float y0, float x1, float y1, char col)
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//
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int32_t cachefilehandle = -1; // texture cache file handle
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FILE *cacheindexptr = NULL;
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static int32_t cachefilehandle = -1; // texture cache file handle
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static FILE *cacheindexptr = NULL;
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static uint8_t *memcachedata = NULL;
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static int32_t memcachesize = -1;
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int32_t cachepos = 0;
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// Set to 1 when we failed (re)allocating space for the memcache:
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// Set to 1 when we failed (re)allocating space for the memcache or failing to
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// read into it (which would presumably generate followup errors spamming the
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// log otherwise):
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static int32_t dont_alloc_memcache = 0;
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static hashtable_t h_texcache = { 1024, NULL };
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@ -604,8 +606,16 @@ static void polymost_cachesync(void)
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{
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initprintf("Syncing memcache to texcache\n");
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Blseek(cachefilehandle, memcachesize, BSEEK_SET);
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Bread(cachefilehandle, memcachedata + memcachesize, len - memcachesize);
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memcachesize = len;
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if (Bread(cachefilehandle, memcachedata + memcachesize, len - memcachesize) != (bssize_t)(len-memcachesize))
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{
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initprintf("polymost_cachesync: Failed reading texcache into memcache!\n");
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clear_memcache();
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dont_alloc_memcache = 1;
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}
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else
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{
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memcachesize = len;
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}
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}
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}
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}
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@ -788,6 +798,7 @@ void polymost_glinit()
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{
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initprintf("Failed reading texcache into memcache!\n");
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clear_memcache();
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dont_alloc_memcache = 1;
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}
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}
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}
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@ -1411,6 +1422,29 @@ static void phex(char v, char *s)
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s[1] = x<10 ? (x+'0') : (x-10+'a');
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}
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// Read from on-disk texcache or its in-memory cache.
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static int32_t read_from_cache(void *dest, int32_t len)
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{
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const int32_t ocachepos = cachepos;
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cachepos += len;
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if (memcachedata && memcachesize >= ocachepos+len)
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{
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// initprintf("using memcache!\n");
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Bmemcpy(dest, memcachedata+ocachepos, len);
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}
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else
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{
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Blseek(cachefilehandle, ocachepos, BSEEK_SET);
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if (Bread(cachefilehandle, dest, len) < len)
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return 1;
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}
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return 0;
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}
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int32_t polymost_trytexcache(const char *fn, int32_t len, int32_t dameth, char effect,
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texcacheheader *head, int32_t modelp)
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{
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@ -1447,26 +1481,16 @@ int32_t polymost_trytexcache(const char *fn, int32_t len, int32_t dameth, char e
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// initprintf("Loading cached tex: %s\n", cachefn);
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(texcacheheader)))
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if (read_from_cache(head, sizeof(texcacheheader)))
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{
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// initprintf("using memcache!\n");
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Bmemcpy(head, memcachedata + cachepos, sizeof(texcacheheader));
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cachepos += sizeof(texcacheheader);
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}
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else
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{
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Blseek(cachefilehandle, cachepos, BSEEK_SET);
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cachepos += sizeof(texcacheheader);
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if (Bread(cachefilehandle, head, sizeof(texcacheheader)) < (int32_t)sizeof(texcacheheader))
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{
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err = 0;
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goto failure;
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}
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err = 0;
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goto failure;
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}
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// checks...
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if (Bmemcmp(head->magic, TEXCACHEMAGIC, 4)) { err=1; goto failure; }
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// native (little-endian) -> internal
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head->xdim = B_LITTLE32(head->xdim);
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head->ydim = B_LITTLE32(head->ydim);
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head->flags = B_LITTLE32(head->flags);
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@ -1560,6 +1584,7 @@ void writexcache(const char *fn, int32_t len, int32_t dameth, char effect, texca
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if (glusetexcache == 2) head->flags |= 4;
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// native -> external (little-endian)
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head->xdim = B_LITTLE32(head->xdim);
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head->ydim = B_LITTLE32(head->ydim);
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head->flags = B_LITTLE32(head->flags);
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@ -1585,6 +1610,7 @@ void writexcache(const char *fn, int32_t len, int32_t dameth, char effect, texca
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#ifdef __APPLE__
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if (pr_ati_textureformat_one && gi == 1) gi = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
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#endif
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// native -> external (little endian)
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pict.format = B_LITTLE32(gi);
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bglGetTexLevelParameteriv(GL_TEXTURE_2D, level, GL_TEXTURE_WIDTH, &gi);
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if (bglGetError() != GL_NO_ERROR) goto failure;
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@ -1674,7 +1700,7 @@ success:
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static int32_t gloadtile_cached(int32_t fil, const texcacheheader *head, int32_t *doalloc, pthtyp *pth,int32_t dapalnum)
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{
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int32_t level, r;
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int32_t level;
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texcachepicture pict;
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char *pic = NULL, *packbuf = NULL;
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void *midbuf = NULL;
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@ -1703,20 +1729,13 @@ static int32_t gloadtile_cached(int32_t fil, const texcacheheader *head, int32_t
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// load the mipmaps
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for (level = 0; level==0 || (pict.xdim > 1 || pict.ydim > 1); level++)
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{
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if (memcachedata && memcachesize >= (signed)(cachepos + sizeof(texcachepicture)))
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if (read_from_cache(&pict, sizeof(texcachepicture)))
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{
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// initprintf("using memcache!\n");
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Bmemcpy(&pict, memcachedata + cachepos, sizeof(texcachepicture));
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cachepos += sizeof(texcachepicture);
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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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r = Bread(fil, &pict, sizeof(texcachepicture));
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cachepos += sizeof(texcachepicture);
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if (r < (int32_t)sizeof(texcachepicture)) { err=1; goto failure; }
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err=1;
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goto failure;
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}
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// external (little endian) -> native
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pict.size = B_LITTLE32(pict.size);
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pict.format = B_LITTLE32(pict.format);
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pict.xdim = B_LITTLE32(pict.xdim);
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@ -6500,6 +6519,7 @@ static void dxt_handle_io(int32_t fil, int32_t len, void *midbuf, char *packbuf)
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writebuf = midbuf;
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}
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// native -> external (little endian)
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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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@ -6511,24 +6531,15 @@ static int32_t dedxt_handle_io(int32_t fil, int32_t j /* TODO: better name */,
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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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if (read_from_cache(&cleng, 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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// external (little endian) -> native
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cleng = B_LITTLE32(cleng);
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inbuf = (ispacked && cleng < j) ? packbuf : midbuf;
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if (memcachedata && memcachesize >= (signed)(cachepos + cleng))
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if (memcachedata && memcachesize >= cachepos + cleng)
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{
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if (ispacked && cleng < j)
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{
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@ -6596,6 +6607,7 @@ 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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// NOTE: <pict> members are in external (little) endianness.
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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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uint32_t j, k, offs, stride;
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@ -6643,16 +6655,16 @@ int32_t dxtfilter(int32_t fil, const texcachepicture *pict, const char *pic, voi
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return 0;
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}
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// NOTE: <pict> members are in native endianness.
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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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int32_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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(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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if ((pict->format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT) ||
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(pict->format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT)) { offs = 0; stride = 8; }
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else if ((pict->format == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT) ||
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(pict->format == 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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