mirror of
https://github.com/godotengine/godot.git
synced 2025-10-30 21:21:10 +00:00
767e374dce
Since Embree v3.13.0 supports AARCH64, switch back to the official repo instead of using Embree-aarch64. `thirdparty/embree/patches/godot-changes.patch` should now contain an accurate diff of the changes done to the library.
179 lines
4.6 KiB
C++
179 lines
4.6 KiB
C++
// Copyright 2009-2021 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#pragma once
|
|
|
|
#include "rtcore.h"
|
|
|
|
namespace embree {
|
|
namespace instance_id_stack {
|
|
|
|
static_assert(RTC_MAX_INSTANCE_LEVEL_COUNT > 0,
|
|
"RTC_MAX_INSTANCE_LEVEL_COUNT must be greater than 0.");
|
|
|
|
/*******************************************************************************
|
|
* Instance ID stack manipulation.
|
|
* This is used from the instance intersector.
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* Push an instance to the stack.
|
|
*/
|
|
RTC_FORCEINLINE bool push(RTCIntersectContext* context,
|
|
unsigned instanceId)
|
|
{
|
|
#if RTC_MAX_INSTANCE_LEVEL_COUNT > 1
|
|
const bool spaceAvailable = context->instStackSize < RTC_MAX_INSTANCE_LEVEL_COUNT;
|
|
/* We assert here because instances are silently dropped when the stack is full.
|
|
This might be quite hard to find in production. */
|
|
assert(spaceAvailable);
|
|
if (likely(spaceAvailable))
|
|
context->instID[context->instStackSize++] = instanceId;
|
|
return spaceAvailable;
|
|
#else
|
|
const bool spaceAvailable = (context->instID[0] == RTC_INVALID_GEOMETRY_ID);
|
|
assert(spaceAvailable);
|
|
if (likely(spaceAvailable))
|
|
context->instID[0] = instanceId;
|
|
return spaceAvailable;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Pop the last instance pushed to the stack.
|
|
* Do not call on an empty stack.
|
|
*/
|
|
RTC_FORCEINLINE void pop(RTCIntersectContext* context)
|
|
{
|
|
assert(context);
|
|
#if RTC_MAX_INSTANCE_LEVEL_COUNT > 1
|
|
assert(context->instStackSize > 0);
|
|
context->instID[--context->instStackSize] = RTC_INVALID_GEOMETRY_ID;
|
|
#else
|
|
assert(context->instID[0] != RTC_INVALID_GEOMETRY_ID);
|
|
context->instID[0] = RTC_INVALID_GEOMETRY_ID;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Optimized instance id stack copy.
|
|
* The copy() functions will either copy full
|
|
* stacks or copy only until the last valid element has been copied, depending
|
|
* on RTC_MAX_INSTANCE_LEVEL_COUNT.
|
|
*/
|
|
RTC_FORCEINLINE void copy_UU(const unsigned* src, unsigned* tgt)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
tgt[0] = src[0];
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
tgt[l] = src[l];
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_UV(const unsigned* src, vuint<K>* tgt)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
tgt[0] = src[0];
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
tgt[l] = src[l];
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_UV(const unsigned* src, vuint<K>* tgt, size_t j)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
tgt[0][j] = src[0];
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
tgt[l][j] = src[l];
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_UV(const unsigned* src, vuint<K>* tgt, const vbool<K>& mask)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
vuint<K>::store(mask, tgt, src[0]);
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
vuint<K>::store(mask, tgt + l, src[l]);
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_VU(const vuint<K>* src, unsigned* tgt, size_t i)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
tgt[0] = src[0][i];
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
tgt[l] = src[l][i];
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l][i] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_VV(const vuint<K>* src, vuint<K>* tgt, size_t i, size_t j)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
tgt[0][j] = src[0][i];
|
|
|
|
#else
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
tgt[l][j] = src[l][i];
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4)
|
|
if (src[l][i] == RTC_INVALID_GEOMETRY_ID)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <int K>
|
|
RTC_FORCEINLINE void copy_VV(const vuint<K>* src, vuint<K>* tgt, const vbool<K>& mask)
|
|
{
|
|
#if (RTC_MAX_INSTANCE_LEVEL_COUNT == 1)
|
|
vuint<K>::store(mask, tgt, src[0]);
|
|
|
|
#else
|
|
vbool<K> done = !mask;
|
|
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
|
|
vuint<K>::store(mask, tgt + l, src[l]);
|
|
if (RTC_MAX_INSTANCE_LEVEL_COUNT > 4) {
|
|
done |= src[l] == RTC_INVALID_GEOMETRY_ID;
|
|
if (all(done)) break;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
} // namespace instance_id_stack
|
|
} // namespace embree
|