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gl_texmgr.c (TexMgr_ReloadImage): reduced the hunk memory usage during

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reloading of images from the bsp by not loading the whole file but by
opening the file, fseek()ing and allocating only the necessary amount.
This way, I can load and reload a save of ne_ruins with just the default
64 Mb of memory on x86 and with only 68.5 Mb of memory (-heapsize 70000)
on x86_64.

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@633 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
sezero 2012-02-11 14:30:19 +00:00
parent 63f50a3d7e
commit b1d8f204e0
1 changed files with 14 additions and 3 deletions
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17
quakespasm/Quake/gl_texmgr.c
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@ -1235,10 +1235,21 @@ void TexMgr_ReloadImage (gltexture_t *glt, int shirt, int pants)
if (glt->source_file[0] && glt->source_offset)
{
//lump inside file
data = COM_LoadHunkFile (glt->source_file, NULL);
if (!data)
long size;
FILE *f;
COM_FOpenFile(glt->source_file, &f, NULL);
if (!f)
goto invalid;
data += glt->source_offset;
fseek (f, glt->source_offset, SEEK_CUR);
size = (long) (glt->source_width * glt->source_height);
/* should be SRC_INDEXED, but no harm being paranoid: */
if (glt->source_format == SRC_RGBA)
size *= 4;
else if (glt->source_format == SRC_LIGHTMAP)
size *= lightmap_bytes;
data = Hunk_Alloc (size);
fread (data, 1, size, f);
fclose (f);
}
else if (glt->source_file[0] && !glt->source_offset)
data = Image_LoadImage (glt->source_file, (int *)&glt->source_width, (int *)&glt->source_height); //simple file