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sokol_gfx.h wgpu: webgpu specific frame stats
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@floooh
floooh committed Oct 1, 2023
1 parent fcfda2e commit c2a5d97
Showing 1 changed file with 37 additions and 1 deletion.
38 changes: 37 additions & 1 deletion sokol_gfx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2877,8 +2877,25 @@ typedef struct sg_frame_stats_metal {
uint32_t fixme;
} sg_frame_stats_metal;

typedef struct sg_frame_stats_wgpu_bindings {
uint32_t num_set_vertex_buffer;
uint32_t num_redundant_vertex_buffer;
uint32_t num_set_index_buffer;
uint32_t num_redundant_index_buffer;
uint32_t num_create_bindgroup;
uint32_t num_discard_bindgroup;
uint32_t num_set_bindgroup;
uint32_t num_set_empty_bindgroup;
uint32_t num_cache_hits;
uint32_t num_cache_misses;
uint32_t num_cache_collisions;
uint32_t num_hash_vs_key_mismatch;
} sg_frame_stats_wgpu_bindings;

typedef struct sg_frame_stats_wgpu {
uint32_t fixme;
uint32_t num_uniform_set_bindgroup;
uint32_t size_uniform_write_buffer;
sg_frame_stats_wgpu_bindings bindings;
} sg_frame_stats_wgpu;

typedef struct sg_frame_stats {
Expand Down Expand Up @@ -12598,6 +12615,7 @@ _SOKOL_PRIVATE void _sg_wgpu_uniform_buffer_on_begin_pass(void) {

_SOKOL_PRIVATE void _sg_wgpu_uniform_buffer_on_commit(void) {
wgpuQueueWriteBuffer(_sg.wgpu.queue, _sg.wgpu.uniform.buf, 0, _sg.wgpu.uniform.staging, _sg.wgpu.uniform.offset);
_sg.stats.wgpu.size_uniform_write_buffer += _sg.wgpu.uniform.offset;
_sg.wgpu.uniform.offset = 0;
_sg_clear(&_sg.wgpu.uniform.bind.offsets[0][0], sizeof(_sg.wgpu.uniform.bind.offsets));
}
Expand Down Expand Up @@ -12743,6 +12761,7 @@ _SOKOL_PRIVATE bool _sg_wgpu_compare_bindgroups_cache_key(_sg_wgpu_bindgroups_ca
return false;
}
if (memcmp(&k0->items, &k1->items, sizeof(k0->items)) != 0) {
_sg.stats.wgpu.bindings.num_hash_vs_key_mismatch++;
return false;
}
return true;
Expand All @@ -12752,6 +12771,7 @@ _SOKOL_PRIVATE _sg_wgpu_bindgroup_t* _sg_wgpu_create_bindgroup(_sg_bindings_t* b
SOKOL_ASSERT(_sg.wgpu.dev);
SOKOL_ASSERT(bnd->pip);
SOKOL_ASSERT(bnd->pip->shader && (bnd->pip->cmn.shader_id.id == bnd->pip->shader->slot.id));
_sg.stats.wgpu.bindings.num_create_bindgroup++;
_sg_wgpu_bindgroup_handle_t bg_id = _sg_wgpu_alloc_bindgroup();
if (bg_id.id == SG_INVALID_ID) {
return 0;
Expand Down Expand Up @@ -12805,6 +12825,7 @@ _SOKOL_PRIVATE _sg_wgpu_bindgroup_t* _sg_wgpu_create_bindgroup(_sg_bindings_t* b

_SOKOL_PRIVATE void _sg_wgpu_discard_bindgroup(_sg_wgpu_bindgroup_t* bg) {
SOKOL_ASSERT(bg);
_sg.stats.wgpu.bindings.num_discard_bindgroup++;
if (bg->slot.state == SG_RESOURCESTATE_VALID) {
if (bg->bindgroup) {
wgpuBindGroupRelease(bg->bindgroup);
Expand Down Expand Up @@ -12909,10 +12930,15 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindgroup(_sg_bindings_t* bnd) {
SOKOL_ASSERT(bg && (bg->slot.state == SG_RESOURCESTATE_VALID));
if (!_sg_wgpu_compare_bindgroups_cache_key(&key, &bg->key)) {
// cache collision, need to delete cached bindgroup
_sg.stats.wgpu.bindings.num_cache_collisions++;
_sg_wgpu_discard_bindgroup(bg);
_sg_wgpu_bindgroups_cache_set(key.hash, SG_INVALID_ID);
bg = 0;
} else {
_sg.stats.wgpu.bindings.num_cache_hits++;
}
} else {
_sg.stats.wgpu.bindings.num_cache_misses++;
}
if (bg == 0) {
// either no cache entry yet, or cache collision, create new bindgroup and store in cache
Expand All @@ -12921,6 +12947,7 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindgroup(_sg_bindings_t* bnd) {
}
if (bg && bg->slot.state == SG_RESOURCESTATE_VALID) {
SOKOL_ASSERT(bg->bindgroup);
_sg.stats.wgpu.bindings.num_set_bindgroup++;
wgpuRenderPassEncoderSetBindGroup(_sg.wgpu.pass_enc, _SG_WGPU_IMAGE_SAMPLER_BINDGROUP_INDEX, bg->bindgroup, 0, 0);
} else {
return false;
Expand All @@ -12931,6 +12958,7 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindgroup(_sg_bindings_t* bnd) {
if (bg) {
if (bg->slot.state == SG_RESOURCESTATE_VALID) {
SOKOL_ASSERT(bg->bindgroup);
_sg.stats.wgpu.bindings.num_set_bindgroup++;
wgpuRenderPassEncoderSetBindGroup(_sg.wgpu.pass_enc, _SG_WGPU_IMAGE_SAMPLER_BINDGROUP_INDEX, bg->bindgroup, 0, 0);
}
_sg_wgpu_discard_bindgroup(bg);
Expand All @@ -12939,6 +12967,7 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindgroup(_sg_bindings_t* bnd) {
}
}
} else {
_sg.stats.wgpu.bindings.num_set_empty_bindgroup++;
wgpuRenderPassEncoderSetBindGroup(_sg.wgpu.pass_enc, _SG_WGPU_IMAGE_SAMPLER_BINDGROUP_INDEX, _sg.wgpu.empty_bind_group, 0, 0);
}
return true;
Expand Down Expand Up @@ -13753,6 +13782,9 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindings(_sg_bindings_t* bnd) {
SOKOL_ASSERT(buf_size > offset);
const uint64_t max_bytes = buf_size - offset;
wgpuRenderPassEncoderSetIndexBuffer(_sg.wgpu.pass_enc, bnd->ib->wgpu.buf, format, offset, max_bytes);
_sg.stats.wgpu.bindings.num_set_index_buffer++;
} else {
_sg.stats.wgpu.bindings.num_redundant_index_buffer++;
}
}
// FIXME: else-path should actually set a null index buffer (this was just recently implemented in WebGPU)
Expand All @@ -13766,6 +13798,9 @@ _SOKOL_PRIVATE bool _sg_wgpu_apply_bindings(_sg_bindings_t* bnd) {
SOKOL_ASSERT(buf_size > offset);
const uint64_t max_bytes = buf_size - offset;
wgpuRenderPassEncoderSetVertexBuffer(_sg.wgpu.pass_enc, (uint32_t)slot, bnd->vbs[slot]->wgpu.buf, offset, max_bytes);
_sg.stats.wgpu.bindings.num_set_vertex_buffer++;
} else {
_sg.stats.wgpu.bindings.num_redundant_vertex_buffer++;
}
// FIXME: else-path should actually set a null vertex buffer (this was just recently implemented in WebGPU)
}
Expand All @@ -13789,6 +13824,7 @@ _SOKOL_PRIVATE void _sg_wgpu_apply_uniforms(sg_shader_stage stage_index, int ub_
SOKOL_ASSERT(data->size <= _sg.wgpu.cur_pipeline->shader->cmn.stage[stage_index].uniform_blocks[ub_index].size);
SOKOL_ASSERT(data->size <= _SG_WGPU_MAX_UNIFORM_UPDATE_SIZE);

_sg.stats.wgpu.num_uniform_set_bindgroup++;
memcpy(_sg.wgpu.uniform.staging + _sg.wgpu.uniform.offset, data->ptr, data->size);
_sg.wgpu.uniform.bind.offsets[stage_index][ub_index] = _sg.wgpu.uniform.offset;
_sg.wgpu.uniform.offset = _sg_roundup_u32(_sg.wgpu.uniform.offset + (uint32_t)data->size, alignment);
Expand Down

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