int VideoColourSpace::SetPictureAttribute(PictureAttribute attribute, int value)
{
if (!(m_supported_attributes & toMask(attribute)))
return -1;
value = std::min(std::max(value, 0), 100);
switch (attribute)
{
case kPictureAttribute_Brightness:
SetBrightness(value);
break;
case kPictureAttribute_Contrast:
SetContrast(value);
break;
case kPictureAttribute_Colour:
SetSaturation(value);
break;
case kPictureAttribute_Hue:
SetHue(value);
break;
case kPictureAttribute_StudioLevels:
value = std::min(std::max(value, 0), 1);
SetStudioLevels(value > 0);
break;
default:
value = -1;
}
if (value >= 0)
SaveValue(attribute, value);
return value;
}
void move(const FUNC& func) const
{
static_assert(std::is_convertible<FUNC, std::function<void(const State&)>>::value,
"func must be callable with a 'const State&' parameter.");
const Mask mask = toMask();
for (int i = 0; i < kBlocks; ++i)
{
Block b = blocks_[i];
// move up
if (b.top > 0 && mask.empty(b.top-1, b.left)
&& mask.empty(b.top-1, b.right()))
{
State next = *this;
next.step++;
next.blocks_[i].top--;
func(next);
}
// move down
if (b.bottom() < kRows-1 && mask.empty(b.bottom()+1, b.left)
&& mask.empty(b.bottom()+1, b.right()))
{
State next = *this;
next.step++;
next.blocks_[i].top++;
func(next);
}
// move left
if (b.left > 0 && mask.empty(b.top, b.left-1)
&& mask.empty(b.bottom(), b.left-1))
{
State next = *this;
next.step++;
next.blocks_[i].left--;
func(next);
}
// move right
if (b.right() < kColumns-1 && mask.empty(b.top, b.right()+1)
&& mask.empty(b.bottom(), b.right()+1))
{
State next = *this;
next.step++;
next.blocks_[i].left++;
func(next);
}
}
}
bool ChannelMask::operator>(const ChannelMask& other) const
{
return toMask() > other.toMask();
}
void BVH4mbIntersector16Single::occluded(mic_i* valid_i, BVH4mb* bvh, Ray16& ray16)
{
/* near and node stack */
__align(64) NodeRef stack_node[3*BVH4i::maxDepth+1];
/* setup */
const mic_m m_valid = *(mic_i*)valid_i != mic_i(0);
const mic3f rdir16 = rcp_safe(ray16.dir);
unsigned int terminated = toInt(!m_valid);
const mic_f inf = mic_f(pos_inf);
const mic_f zero = mic_f::zero();
const Node * __restrict__ nodes = (Node *)bvh->nodePtr();
const BVH4mb::Triangle01 * __restrict__ accel = (BVH4mb::Triangle01 *)bvh->triPtr();
stack_node[0] = BVH4i::invalidNode;
long rayIndex = -1;
while((rayIndex = bitscan64(rayIndex,toInt(m_valid))) != BITSCAN_NO_BIT_SET_64)
{
stack_node[1] = bvh->root;
size_t sindex = 2;
const mic_f org_xyz = loadAOS4to16f(rayIndex,ray16.org.x,ray16.org.y,ray16.org.z);
const mic_f dir_xyz = loadAOS4to16f(rayIndex,ray16.dir.x,ray16.dir.y,ray16.dir.z);
const mic_f rdir_xyz = loadAOS4to16f(rayIndex,rdir16.x,rdir16.y,rdir16.z);
const mic_f org_rdir_xyz = org_xyz * rdir_xyz;
const mic_f min_dist_xyz = broadcast1to16f(&ray16.tnear[rayIndex]);
const mic_f max_dist_xyz = broadcast1to16f(&ray16.tfar[rayIndex]);
const mic_f time = broadcast1to16f(&ray16.time[rayIndex]);
const unsigned int leaf_mask = BVH4I_LEAF_MASK;
while (1)
{
NodeRef curNode = stack_node[sindex-1];
sindex--;
const mic_f one_time = (mic_f::one() - time);
while (1)
{
/* test if this is a leaf node */
if (unlikely(curNode.isLeaf(leaf_mask))) break;
const Node* __restrict__ const node = curNode.node(nodes);
const float* __restrict const plower = (float*)node->lower;
const float* __restrict const pupper = (float*)node->upper;
prefetch<PFHINT_L1>((char*)node + 0*64);
prefetch<PFHINT_L1>((char*)node + 1*64);
prefetch<PFHINT_L1>((char*)node + 2*64);
prefetch<PFHINT_L1>((char*)node + 3*64);
const BVH4mb::Node* __restrict__ const nodeMB = (BVH4mb::Node*)node;
const mic_f lower = one_time * load16f((float*)nodeMB->lower) + time * load16f((float*)nodeMB->lower_t1);
const mic_f upper = one_time * load16f((float*)nodeMB->upper) + time * load16f((float*)nodeMB->upper_t1);
/* intersect single ray with 4 bounding boxes */
const mic_f tLowerXYZ = lower * rdir_xyz - org_rdir_xyz;
const mic_f tUpperXYZ = upper * rdir_xyz - org_rdir_xyz;
const mic_f tLower = mask_min(0x7777,min_dist_xyz,tLowerXYZ,tUpperXYZ);
const mic_f tUpper = mask_max(0x7777,max_dist_xyz,tLowerXYZ,tUpperXYZ);
const Node* __restrict__ const next = curNode.node(nodes);
prefetch<PFHINT_L2>((char*)next + 0);
prefetch<PFHINT_L2>((char*)next + 64);
sindex--;
const mic_f tNear = vreduce_max4(tLower);
const mic_f tFar = vreduce_min4(tUpper);
const mic_m hitm = le(0x8888,tNear,tFar);
const mic_f tNear_pos = select(hitm,tNear,inf);
curNode = stack_node[sindex]; // early pop of next node
/* if no child is hit, continue with early popped child */
if (unlikely(none(hitm))) continue;
sindex++;
const unsigned long hiti = toInt(hitm);
const unsigned long pos_first = bitscan64(hiti);
const unsigned long num_hitm = countbits(hiti);
/* if a single child is hit, continue with that child */
curNode = ((unsigned int *)plower)[pos_first];
if (likely(num_hitm == 1)) continue;
/* if two children are hit, push in correct order */
const unsigned long pos_second = bitscan64(pos_first,hiti);
if (likely(num_hitm == 2))
{
const unsigned int dist_first = ((unsigned int*)&tNear)[pos_first];
const unsigned int dist_second = ((unsigned int*)&tNear)[pos_second];
const unsigned int node_first = curNode;
const unsigned int node_second = ((unsigned int*)plower)[pos_second];
if (dist_first <= dist_second)
{
stack_node[sindex] = node_second;
sindex++;
assert(sindex < 3*BVH4i::maxDepth+1);
continue;
}
else
{
stack_node[sindex] = curNode;
curNode = node_second;
sindex++;
assert(sindex < 3*BVH4i::maxDepth+1);
continue;
}
}
/* continue with closest child and push all others */
const mic_f min_dist = set_min_lanes(tNear_pos);
const unsigned int old_sindex = sindex;
sindex += countbits(hiti) - 1;
assert(sindex < 3*BVH4i::maxDepth+1);
const mic_m closest_child = eq(hitm,min_dist,tNear);
const unsigned long closest_child_pos = bitscan64(closest_child);
const mic_m m_pos = andn(hitm,andn(closest_child,(mic_m)((unsigned int)closest_child - 1)));
const mic_i plower_node = load16i((int*)plower);
curNode = ((unsigned int*)plower)[closest_child_pos];
compactustore16i(m_pos,&stack_node[old_sindex],plower_node);
}
/* return if stack is empty */
if (unlikely(curNode == BVH4i::invalidNode)) break;
/* intersect one ray against four triangles */
//////////////////////////////////////////////////////////////////////////////////////////////////
const BVH4mb::Triangle01* tptr = (BVH4mb::Triangle01*) curNode.leaf(accel);
prefetch<PFHINT_L1>((mic_f*)tptr + 0);
prefetch<PFHINT_L1>((mic_f*)tptr + 1);
prefetch<PFHINT_L1>((mic_f*)tptr + 2);
prefetch<PFHINT_L1>((mic_f*)tptr + 3);
const mic_i and_mask = broadcast4to16i(zlc4);
const mic_f v0_t0 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t0.v0,
(float*)&tptr[1].t0.v0,
(float*)&tptr[2].t0.v0,
(float*)&tptr[3].t0.v0);
const mic_f v1_t0 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t0.v1,
(float*)&tptr[1].t0.v1,
(float*)&tptr[2].t0.v1,
(float*)&tptr[3].t0.v1);
const mic_f v2_t0 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t0.v2,
(float*)&tptr[1].t0.v2,
(float*)&tptr[2].t0.v2,
(float*)&tptr[3].t0.v2);
prefetch<PFHINT_L2>((mic_f*)tptr + 4);
prefetch<PFHINT_L2>((mic_f*)tptr + 5);
prefetch<PFHINT_L2>((mic_f*)tptr + 6);
prefetch<PFHINT_L2>((mic_f*)tptr + 7);
const mic_f v0_t1 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t1.v0,
(float*)&tptr[1].t1.v0,
(float*)&tptr[2].t1.v0,
(float*)&tptr[3].t1.v0);
const mic_f v1_t1 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t1.v1,
(float*)&tptr[1].t1.v1,
(float*)&tptr[2].t1.v1,
(float*)&tptr[3].t1.v1);
const mic_f v2_t1 = gather_4f_zlc(and_mask,
(float*)&tptr[0].t1.v2,
(float*)&tptr[1].t1.v2,
(float*)&tptr[2].t1.v2,
(float*)&tptr[3].t1.v2);
const mic_f v0 = v0_t0 * one_time + time * v0_t1;
const mic_f v1 = v1_t0 * one_time + time * v1_t1;
const mic_f v2 = v2_t0 * one_time + time * v2_t1;
const mic_f e1 = v1 - v0;
const mic_f e2 = v0 - v2;
const mic_f normal = lcross_zxy(e1,e2);
const mic_f org = v0 - org_xyz;
const mic_f odzxy = msubr231(org * swizzle(dir_xyz,_MM_SWIZ_REG_DACB), dir_xyz, swizzle(org,_MM_SWIZ_REG_DACB));
const mic_f den = ldot3_zxy(dir_xyz,normal);
const mic_f rcp_den = rcp(den);
const mic_f uu = ldot3_zxy(e2,odzxy);
const mic_f vv = ldot3_zxy(e1,odzxy);
const mic_f u = uu * rcp_den;
const mic_f v = vv * rcp_den;
#if defined(__BACKFACE_CULLING__)
const mic_m m_init = (mic_m)0x1111 & (den > zero);
#else
const mic_m m_init = 0x1111;
#endif
const mic_m valid_u = ge((mic_m)m_init,u,zero);
const mic_m valid_v = ge(valid_u,v,zero);
const mic_m m_aperture = le(valid_v,u+v,mic_f::one());
const mic_f nom = ldot3_zxy(org,normal);
const mic_f t = rcp_den*nom;
if (unlikely(none(m_aperture))) continue;
mic_m m_final = lt(lt(m_aperture,min_dist_xyz,t),t,max_dist_xyz);
#if defined(__USE_RAY_MASK__)
const mic_i rayMask(ray16.mask[rayIndex]);
const mic_i triMask = swDDDD(gather16i_4i_align(&tptr[0].t0.v2,&tptr[1].t0.v2,&tptr[2].t0.v2,&tptr[3].t0.v2));
const mic_m m_ray_mask = (rayMask & triMask) != mic_i::zero();
m_final &= m_ray_mask;
#endif
if (unlikely(any(m_final)))
{
terminated |= mic_m::shift1[rayIndex];
break;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
}
if (unlikely(all(toMask(terminated)))) break;
}
store16i(m_valid & toMask(terminated),&ray16.geomID,0);
}
