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wire up pipeline cache

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asrael 2026-02-07 20:08:22 -06:00
parent 1d115f3e71
commit 657b590b6f
2 changed files with 53 additions and 1 deletions
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1
src/core/pxl8.c
View file

@ -283,6 +283,7 @@ pxl8_result pxl8_init(pxl8* sys, i32 argc, char* argv[]) {
}
#ifndef NDEBUG
game->debug_stats = true;
game->debug_replay = pxl8_replay_create_buffer(60, 60);
pxl8_sfx_mixer_set_event_callback(game->mixer, pxl8_audio_event_callback, game);
#endif

53
src/gfx/pxl8_render.c
View file

@ -734,6 +734,27 @@ typedef struct {
bool valid;
} pipeline_cache_entry;
static u32 pipeline_desc_hash(const pxl8_gfx_pipeline_desc* d) {
u32 h = 2166136261u;
h = (h ^ (u32)d->blend.enabled) * 16777619u;
h = (h ^ (u32)d->blend.src) * 16777619u;
h = (h ^ (u32)d->blend.dst) * 16777619u;
h = (h ^ (u32)d->blend.alpha_test) * 16777619u;
h = (h ^ (u32)d->blend.alpha_ref) * 16777619u;
h = (h ^ (u32)d->depth.test) * 16777619u;
h = (h ^ (u32)d->depth.write) * 16777619u;
h = (h ^ (u32)d->depth.compare) * 16777619u;
h = (h ^ (u32)d->dither) * 16777619u;
h = (h ^ (u32)d->double_sided) * 16777619u;
h = (h ^ (u32)d->emissive) * 16777619u;
h = (h ^ (u32)d->rasterizer.cull) * 16777619u;
h = (h ^ (u32)d->rasterizer.fill) * 16777619u;
u64 s = (u64)(uintptr_t)d->shader;
h = (h ^ (u32)s) * 16777619u;
h = (h ^ (u32)(s >> 32)) * 16777619u;
return h;
}
typedef struct {
pxl8_gfx_pipeline_desc desc;
u16 generation;
@ -900,12 +921,39 @@ pxl8_gfx_buffer pxl8_create_buffer(pxl8_renderer* r, const pxl8_gfx_buffer_desc*
}
pxl8_gfx_pipeline pxl8_create_pipeline(pxl8_renderer* r, const pxl8_gfx_pipeline_desc* desc) {
u32 hash = pipeline_desc_hash(desc);
u32 bucket = hash & (PXL8_PIPELINE_CACHE_SIZE - 1);
pipeline_cache_entry* ce = &r->pipeline_cache[bucket];
if (ce->valid && ce->hash == hash) {
pipeline_slot* s = &r->pipelines[ce->slot_idx];
if (s->active && s->cached) {
ce->last_used_frame = r->frame_counter;
return (pxl8_gfx_pipeline){ MAKE_ID(ce->slot_idx, s->generation) };
}
}
for (u32 i = 0; i < PXL8_GFX_MAX_PIPELINES; i++) {
if (!r->pipelines[i].active) {
pipeline_slot* s = &r->pipelines[i];
s->desc = *desc;
s->generation = NEXT_GEN(s->generation);
s->active = true;
if (!ce->valid || ce->last_used_frame != r->frame_counter) {
if (ce->valid && ce->slot_idx < PXL8_GFX_MAX_PIPELINES) {
r->pipelines[ce->slot_idx].cached = false;
r->pipelines[ce->slot_idx].active = false;
}
s->cached = true;
ce->hash = hash;
ce->slot_idx = i;
ce->last_used_frame = r->frame_counter;
ce->valid = true;
} else {
s->cached = false;
}
return (pxl8_gfx_pipeline){ MAKE_ID(i, s->generation) };
}
}
@ -980,7 +1028,8 @@ void pxl8_destroy_buffer(pxl8_renderer* r, pxl8_gfx_buffer buf) {
void pxl8_destroy_pipeline(pxl8_renderer* r, pxl8_gfx_pipeline pip) {
u32 idx = SLOT_INDEX(pip.id);
if (idx < PXL8_GFX_MAX_PIPELINES && r->pipelines[idx].generation == SLOT_GEN(pip.id)) {
r->pipelines[idx].active = false;
if (!r->pipelines[idx].cached)
r->pipelines[idx].active = false;
}
}
@ -1415,6 +1464,8 @@ void pxl8_gfx_submit(pxl8_renderer* r, pxl8_gfx_cmdbuf* cb) {
r->buffers[i].append_pos = 0;
}
}
r->frame_counter++;
}
void pxl8_clear(pxl8_renderer* r, pxl8_gfx_texture target, u8 color) {