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Implement the instance surface allocation/freeing.

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Not actually used yet, so it's harmless at this stage.
This commit is contained in:
Bill Currie 2011-12-17 19:42:19 +09:00
parent 87b78e5533
commit a8e354536a
1 changed files with 42 additions and 0 deletions
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42
libs/video/renderer/gl/gl_rsurf.c
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@ -70,6 +70,7 @@ instsurf_t **sky_chain_tail;
#define CHAIN_SURF_F2B(surf,chain) \
do { \
instsurf_t *inst = (surf)->instsurf; \
if (!inst) inst = get_instsurf (); \
inst->surface = (surf); \
*(chain##_tail) = inst; \
(chain##_tail) = &inst->tex_chain; \
@ -79,6 +80,7 @@ instsurf_t **sky_chain_tail;
#define CHAIN_SURF_B2F(surf,chain) \
do { \
instsurf_t *inst = (surf)->instsurf; \
if (!inst) inst = get_instsurf (); \
inst->surface = (surf); \
inst->tex_chain = (chain); \
(chain) = inst; \
@ -92,7 +94,45 @@ extern glRect_t lightmap_rectchange[MAX_LIGHTMAPS];
static texture_t **r_texture_chains;
static int r_num_texture_chains;
static int max_texture_chains;
static instsurf_t *static_chains;
static instsurf_t *free_instsurfs;
static instsurf_t *alloced_instsurfs;
static instsurf_t **alloced_instsurfs_tail = &alloced_instsurfs;
#define NUM_INSTSURFS (64 * 6) // most brush models are simple boxes.
static inline instsurf_t *
get_instsurf (void)
{
instsurf_t *instsurf;
if (!free_instsurfs) {
int i;
free_instsurfs = calloc (NUM_INSTSURFS, sizeof (instsurf_t));
for (i = 0; i < NUM_INSTSURFS - 1; i++)
free_instsurfs[i].next = &free_instsurfs[i + 1];
}
instsurf = free_instsurfs;
free_instsurfs = instsurf->next;
instsurf->next = 0;
//build the chain of allocated instance surfaces so they can all be freed
//in one go
*alloced_instsurfs_tail = instsurf;
alloced_instsurfs_tail = &instsurf->next;
return instsurf;
}
static inline void
release_instsurfs (void)
{
if (alloced_instsurfs) {
*alloced_instsurfs_tail = free_instsurfs;
free_instsurfs = alloced_instsurfs;
alloced_instsurfs = 0;
alloced_instsurfs_tail = &alloced_instsurfs;
}
}
void
R_AddTexture (texture_t *tex)
@ -121,6 +161,7 @@ R_InitSurfaceChains (model_t *model)
for (i = 0; i < model->nummodelsurfaces; i++)
model->surfaces[i].instsurf = static_chains + i;
release_instsurfs ();
}
void
@ -456,6 +497,7 @@ clear_texture_chains (void)
tex = r_notexture_mip;
tex->tex_chain = NULL;
tex->tex_chain_tail = &tex->tex_chain;
release_instsurfs ();
}
static inline void