void HiZ::greyRGBA(uint8 **pixels) const
{
if (UNLIKELY(pixels == NULL)) return;
if (UNLIKELY(*pixels == NULL)) return;
// Iterate over all pixels, find the tile, find the pixel in the tile and
// output a grey scaled pixel
uint8 *rgba = *pixels;
for (uint32 y = 0; y < this->height; ++y)
for (uint32 x = 0; x < this->width; ++x) {
const uint32 tileX = x / Tile::width;
const uint32 tileY = y / Tile::height;
const uint32 tileID = tileX + tileY * this->tileXNum;
const Tile &tile = this->tiles[tileID];
const float *zptr = &tile.z[0][0];
const uint32 offsetX = x % Tile::width;
const uint32 offsetY = y % Tile::height;
const uint32 offset = offsetX + Tile::width * offsetY;
const uint32 imageOffset = (x + y * this->width) * 4;
const float z = min(zptr[offset] * 32.f, 255.f);
PF_ASSERT(imageOffset < 4*this->pixelNum);
rgba[imageOffset + 0] = uint8(z);
rgba[imageOffset + 1] = uint8(z);
rgba[imageOffset + 2] = uint8(z);
rgba[imageOffset + 3] = 0xff;
}
}
// We create packets and directly fill each zBuffer tile. Note that we
// really store t values
void TaskRayTraceHiZ::run(size_t taskID)
{
const uint32 taskX = taskID % this->taskXNum;
const uint32 taskY = taskID / this->taskXNum;
const uint32 startX = taskX * this->width;
const uint32 startY = taskY * this->height;
const uint32 endX = startX + this->width;
const uint32 endY = startY + this->height;
uint32 tileY = startY / HiZ::Tile::height;
for (uint32 y = startY; y < endY; y += RayPacket::height, ++tileY) {
uint32 tileX = startX / HiZ::Tile::width;
for (uint32 x = startX; x < endX; x += RayPacket::width, ++tileX) {
RayPacket pckt;
PacketHit hit;
gen.generate(pckt, x, y);
intersector->traverse(pckt, hit);
ssef zmin(inf), zmax(neg_inf);
const uint32 tileID = tileX + tileY * zBuffer->tileXNum;
PF_ASSERT(tileID < zBuffer->tileNum);
HiZ::Tile &tile = zBuffer->tiles[tileID];
for (uint32 chunkID = 0; chunkID < HiZ::Tile::chunkNum; ++chunkID) {
//const ssef t = hit.t[chunkID];
const ssef t = hit.t[chunkID] *dot(sse3f(view.x,view.y,view.z), pckt.dir[chunkID]);
tile.z[chunkID] = t;
zmin = min(zmin, t);
zmax = max(zmax, t);
}
tile.zmin = reduce_min(zmin)[0];
tile.zmax = reduce_max(zmax)[0];
}
}
}
void rnContextDelete(RnContext ctx) {
if (ctx == NULL) return;
PF_ASSERT(ctx == renderer);
if (ctx->refDec()) {
Lock<MutexSys> lock(rendererMutex);
PF_DELETE(renderer);
renderer = NULL;
}
}
void rnFrameSetCamera(RnFrame frame,
const float *org,
const float *up,
const float *view,
float fov,
float ratio) {
PF_ASSERT(frame);
frame->setCamera(org, up, view, fov, ratio);
}
void RendererDisplayList::add(RendererObj *obj, const float *m) {
PF_ASSERT(this->isCompiled() == false);
Elem elem;
if (m) {
elem.isIdentity = 0;
elem.model = mat4x4f(m[0], m[1], m[2], m[3],
m[4], m[5], m[6], m[7],
m[8], m[9], m[10],m[11],
m[12],m[13],m[14],m[15]);
} else {
elem.isIdentity = 1;
elem.model = mat4x4f(one);
}
elem.object = obj;
this->objects.push_back(elem);
}
int main(int argc, char *argv[])
{
int32_t mortonX[n];
int32_t mortonY[n];
for (uint32_t i = 0; i < n; ++i) mortonX[i] = mortonY[i] = -1;
for (uint16_t y = 0; y < dim; ++y)
for (uint16_t x = 0; x < dim; ++x) {
uint32_t z = 0;
for (int i = 0; i < sizeof(x) * 8; i++)
z |= (x & 1U << i) << i | (y & 1U << i) << (i + 1);
mortonX[z] = x;
mortonY[z] = y;
}
#ifndef NDEBUG
for (uint32_t i = 0; i < n; ++i) PF_ASSERT(mortonX[i] != -1 && mortonY[i] != -1);
#endif /* NDEBUG */
std::cout << "const int32 ALIGNED(16) RTCameraPacketGen::mortonX[] = {" << std::endl;
for (uint32_t i = 0; i < n; i += 16) {
for (uint32_t j = i; j < i + 16; ++j)
std::cout << std::setw(2) << mortonX[j] << ", ";
std::cout << std::endl;
}
std::cout << "};" << std::endl;
std::cout << std::endl;
std::cout << "const int32 ALIGNED(16) RTCameraPacketGen::mortonY[] = {" << std::endl;
for (uint32_t i = 0; i < n; i += 16) {
for (uint32_t j = i; j < i + 16; ++j)
std::cout << std::setw(2) << mortonY[j] << ", ";
std::cout << std::endl;
}
std::cout << "};" << std::endl;
std::cout << std::endl;
}
INLINE T& operator [](size_t axis) {PF_ASSERT(axis < 2); return (&x)[axis];}
INLINE const T& operator [](size_t axis) const {PF_ASSERT(axis < 2); return (&x)[axis];}
static void RendererObjectCompile(T *object) {
PF_ASSERT(object);
object->compile();
}
RnDisplayList rnDisplayListNew(RnContext ctx) {
PF_ASSERT(ctx);
RnDisplayList list = PF_NEW(RendererDisplayList, *ctx);
RendererObjectNew(list);
return list;
}
/*! Common for all user renderer object deletion */
static void RendererObjectDelete(RendererObject *object) {
PF_ASSERT(object);
object->externalRefDec();
if (object->refDec()) PF_DELETE(object);
}
void rnFrameSetDisplayList(RnFrame frame, RnDisplayList list) {
PF_ASSERT(frame);
frame->setDisplayList(list);
}
RnTask rnFrameDisplay(RnFrame frame) {
PF_ASSERT(frame);
return frame->display();
}
void rnFrameSetScreenDimension(RnFrame frame, uint32 w, uint32 h) {
PF_ASSERT(frame);
frame->setScreenDimension(w, h);
}
RnFrame rnFrameNew(RnContext ctx) {
PF_ASSERT(ctx);
RnFrame frame = PF_NEW(RendererFrame, *ctx);
RendererObjectNew(frame);
return frame;
}
INLINE int32& operator []( const size_t index ) { PF_ASSERT(index < 8); return v[index]; }
/*! Common for all user renderer object retains */
static void RendererObjectRetain(RendererObject *object) {
PF_ASSERT(object);
object->refInc();
object->externalRefInc();
}
void rnObjSetIntersector(RnObj obj, RnIntersector intersector) {
PF_ASSERT(obj && obj->isCompiled() == false);
obj->intersector = intersector;
}