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Make some things clearer here.

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This commit is contained in:
Jaime Passos 2019-12-08 01:54:03 -03:00
parent 40b862967d
commit bc60a0a887
1 changed files with 28 additions and 15 deletions
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43
src/hardware/hw_cache.c
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@ -760,15 +760,15 @@ void HWR_MakePatch (const patch_t *patch, GLPatch_t *grPatch, GLMipmap_t *grMipm
// CACHING HANDLING
// =================================================
static size_t gr_numtextures;
static GLTexture_t *gr_textures; // for ALL Doom textures
static GLTexture_t *gr_textures2;
static size_t gr_numtextures; // Texture count
static GLTexture_t *gr_textures; // For all textures
static GLTexture_t *gr_flats; // For all (texture) flats, as normal flats don't need to be cached
void HWR_InitTextureCache(void)
{
gr_numtextures = 0;
gr_textures = NULL;
gr_textures2 = NULL;
gr_flats = NULL;
}
// Callback function for HWR_FreeTextureCache.
@ -831,10 +831,10 @@ void HWR_FreeTextureCache(void)
// texturecache info, we can free it
if (gr_textures)
free(gr_textures);
if (gr_textures2)
free(gr_textures2);
if (gr_flats)
free(gr_flats);
gr_textures = NULL;
gr_textures2 = NULL;
gr_flats = NULL;
gr_numtextures = 0;
}
@ -848,13 +848,15 @@ void HWR_PrepLevelCache(size_t pnumtextures)
// we must free it since numtextures changed
HWR_FreeTextureCache();
// Why not Z_Malloc?
gr_numtextures = pnumtextures;
gr_textures = calloc(pnumtextures, sizeof (*gr_textures));
if (gr_textures == NULL)
I_Error("3D can't alloc gr_textures");
gr_textures2 = calloc(pnumtextures, sizeof (*gr_textures2));
if (gr_textures2 == NULL)
I_Error("3D can't alloc gr_textures2");
gr_textures = calloc(gr_numtextures, sizeof(*gr_textures));
gr_flats = calloc(gr_numtextures, sizeof(*gr_flats));
// Doesn't tell you which it _is_, but hopefully
// should never ever happen (right?!)
if ((gr_textures == NULL) || (gr_flats == NULL))
I_Error("HWR_PrepLevelCache: ran out of memory for OpenGL textures. Sad!");
}
void HWR_SetPalette(RGBA_t *palette)
@ -887,11 +889,16 @@ GLTexture_t *HWR_GetTexture(INT32 tex)
if ((unsigned)tex >= gr_numtextures)
I_Error("HWR_GetTexture: tex >= numtextures\n");
#endif
// Every texture in memory, stored in the
// hardware renderer's bit depth format. Wow!
grtex = &gr_textures[tex];
// Generate texture if missing from the cache
if (!grtex->mipmap.grInfo.data && !grtex->mipmap.downloaded)
HWR_GenerateTexture(tex, grtex);
// Tell the hardware driver to bind the current texture to the flat's mipmap
HWD.pfnSetTexture(&grtex->mipmap);
// The system-memory data can be purged now.
@ -1003,13 +1010,19 @@ void HWR_GetLevelFlat(levelflat_t *levelflat)
if ((unsigned)texturenum >= gr_numtextures)
I_Error("HWR_GetLevelFlat: texturenum >= numtextures\n");
#endif
// Who knows?
if (texturenum == 0 || texturenum == -1)
return;
grtex = &gr_textures2[texturenum];
// Every texture in memory, stored as a 8-bit flat. Wow!
grtex = &gr_flats[texturenum];
// Generate flat if missing from the cache
if (!grtex->mipmap.grInfo.data && !grtex->mipmap.downloaded)
HWR_CacheTextureAsFlat(&grtex->mipmap, texturenum);
// Tell the hardware driver to bind the current texture to the flat's mipmap
HWD.pfnSetTexture(&grtex->mipmap);
// The system-memory data can be purged now.
@ -1033,6 +1046,7 @@ static void HWR_LoadMappedPatch(GLMipmap_t *grmip, GLPatch_t *gpatch)
HWR_MakePatch(patch, gpatch, grmip, true);
// You can't free rawpatch for some reason?
// (Obviously I can't, sprite rotation needs that...)
if (!gpatch->rawpatch)
Z_Free(patch);
}
@ -1060,7 +1074,6 @@ void HWR_GetPatch(GLPatch_t *gpatch)
// this is inefficient.. but the hardware patch in heap is purgeable so it should
// not fragment memory, and besides the REAL cache here is the hardware memory
// You can't free rawpatch for some reason?
if (!gpatch->rawpatch)
Z_Free(ptr);
}