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base: studiorailgun:6afbbd7e2a2e03269d968745aba154cd7abf9bf5
Branches Tags
studiorailgun:master
studiorailgun:jenkinsAutoTesting
studiorailgun:migrate-multichunk-to-c
studiorailgun:migration-successful
studiorailgun:multichunking-success
studiorailgun:c-single-thread
..
compare: studiorailgun:fb81cc298299ed6f61ab210de59fb741abf1546d
Branches Tags
studiorailgun:master
studiorailgun:jenkinsAutoTesting
studiorailgun:migrate-multichunk-to-c
studiorailgun:migration-successful
studiorailgun:multichunking-success
studiorailgun:c-single-thread

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6afbbd7e2a ... fb81cc2982

4 changed files with 94 additions and 245 deletions
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8
src/main/c/densitystep.c
View File

@ -40,8 +40,8 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_solveDiffuseDensity
jobject this,
jint N,
jint chunk_mask,
float ** d,
float ** d0,
jobjectArray jrx,
jobjectArray jrx0,
jobjectArray jru,
jobjectArray jrv,
jobjectArray jrw,
@ -51,8 +51,8 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_solveDiffuseDensity
float a=dt*DIFFUSION_CONST*N*N*N;
float c=1+6*a;
int i, j, k, l, m;
float * x = GET_ARR_RAW(env,d,CENTER_LOC);
float * x0 = GET_ARR_RAW(env,d0,CENTER_LOC);
float * x = GET_ARR(env,jrx,CENTER_LOC);
float * x0 = GET_ARR(env,jrx0,CENTER_LOC);
__m256 aScalar = _mm256_set1_ps(a);
__m256 cScalar = _mm256_set1_ps(c);

95
src/main/c/fluidsim.c
View File

@ -700,6 +700,14 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_addDensity(env,chunkJRaw,DIM,chunkMask,currentChunk->d,currentChunk->d0,timestep);
}
}
@ -708,6 +716,23 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
//swap vector fields
for(int i = 0; i < numChunks; i++){
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
setBuffArr(dJId,jd0);
setBuffArr(d0JId,jd);
jobject tmpObj;
tmpObj = currentChunk->jd;
currentChunk->jd = currentChunk->jd0;
currentChunk->jd0 = tmpObj;
float * tmpArr;
for(int j = 0; j < 27; j++){
@ -722,8 +747,14 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
copyNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,0,currentChunk->d);
copyNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,0,currentChunk->d0);
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_copyNeighbors(env,chunkJRaw,DIM,chunkMask,0,0,jd);
Java_electrosphere_FluidSim_copyNeighbors(env,chunkJRaw,DIM,chunkMask,0,0,jd0);
}
}
//diffuse density
@ -733,16 +764,29 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
Java_electrosphere_FluidSim_solveDiffuseDensity(env,chunkJRaw,DIM,chunkMask,currentChunk->d,currentChunk->d0,u,v,w,DIFFUSION_CONSTANT,VISCOSITY_CONSTANT,timestep);
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_solveDiffuseDensity(env,chunkJRaw,DIM,chunkMask,jd,jd0,u,v,w,DIFFUSION_CONSTANT,VISCOSITY_CONSTANT,timestep);
}
for(int i = 0; i < numChunks; i++){
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
setBoundsToNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,currentChunk->d);
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_setBoundsToNeighbors(env,chunkJRaw,DIM,chunkMask,0,jd);
}
}
}
@ -751,6 +795,24 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
//swap vector fields
for(int i = 0; i < numChunks; i++){
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
setBuffArr(dJId,jd0);
setBuffArr(d0JId,jd);
jobject tmpObj;
tmpObj = currentChunk->jd;
currentChunk->jd = currentChunk->jd0;
currentChunk->jd0 = tmpObj;
float * tmpArr;
for(int j = 0; j < 27; j++){
tmpArr = currentChunk->d[j];
@ -762,8 +824,16 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
copyNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,0,currentChunk->d);
copyNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,0,currentChunk->d0);
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_copyNeighbors(env,chunkJRaw,DIM,chunkMask,0,0,jd);
Java_electrosphere_FluidSim_copyNeighbors(env,chunkJRaw,DIM,chunkMask,0,0,jd0);
}
}
//advect density
@ -772,9 +842,14 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
Java_electrosphere_FluidSim_advectDensity(env,chunkJRaw,DIM,chunkMask,currentChunk->d,currentChunk->d0,u,v,w,DIFFUSION_CONSTANT,VISCOSITY_CONSTANT,timestep);
}
}
@ -784,6 +859,14 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
Chunk * currentChunk = chunks[i];
chunkJRaw = currentChunk->jchunk;
chunkMask = currentChunk->chunkMask;
jd = currentChunk->jd;
jd0 = currentChunk->jd0;
u = currentChunk->ju;
v = currentChunk->jv;
w = currentChunk->jw;
u0 = currentChunk->ju0;
v0 = currentChunk->jv0;
w0 = currentChunk->jw0;
setBoundsToNeighborsRaw(env,chunkJRaw,DIM,chunkMask,0,currentChunk->d);
}
}

11
src/main/c/includes/mainFunctions.h
View File

@ -73,7 +73,7 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_addDensity
* Signature: (II[Ljava/nio/ByteBuffer;[Ljava/nio/ByteBuffer;[Ljava/nio/ByteBuffer;[Ljava/nio/ByteBuffer;[Ljava/nio/ByteBuffer;FFF)V
*/
JNIEXPORT void JNICALL Java_electrosphere_FluidSim_solveDiffuseDensity
(JNIEnv *, jobject, jint, jint, float **, float **, jobjectArray, jobjectArray, jobjectArray, jfloat, jfloat, jfloat);
(JNIEnv *, jobject, jint, jint, jobjectArray, jobjectArray, jobjectArray, jobjectArray, jobjectArray, jfloat, jfloat, jfloat);
/*
* Class: electrosphere_FluidSim
@ -107,13 +107,4 @@ JNIEXPORT void JNICALL setBoundsToNeighborsRaw
JNIEXPORT void JNICALL Java_electrosphere_FluidSim_copyNeighbors
(JNIEnv *, jobject, jint, jint, jint, jint, jobjectArray);
JNIEXPORT void JNICALL copyNeighborsRaw
(JNIEnv * env,
jobject this,
jint N,
jint chunk_mask,
jint cx,
jint vector_dir,
float ** neighborArray);
#endif

225
src/main/c/velocitystep.c
View File

@ -782,231 +782,6 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_setBoundsToNeighbors
target[IX(DIM-1,DIM-1,DIM-1)] = (float)((target[IX(DIM-1,DIM-1,DIM-2)]+target[IX(DIM-1,DIM-2,DIM-1)]+target[IX(DIM-1,DIM-1,DIM-2)])/3.0);
}
/**
* This exclusively copies neighbors to make sure zeroing out stuff doesn't break sim
*/
JNIEXPORT void JNICALL copyNeighborsRaw
(JNIEnv * env,
jobject this,
jint N,
jint chunk_mask,
jint cx,
jint vector_dir,
float ** neighborArray){
int DIM = N;
float * target = GET_ARR_RAW(env,neighborArray,CENTER_LOC);
float * source;
//
//
// PLANES
//
//
if(ARR_EXISTS(chunk_mask,0,1,1)){
source = GET_ARR_RAW(env,neighborArray,CK(0,1,1));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(0,x,y)] = source[IX(DIM-2,x,y)];
}
}
}
if(ARR_EXISTS(chunk_mask,2,1,1)){
source = GET_ARR_RAW(env,neighborArray,CK(2,1,1));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(DIM-1,x,y)] = source[IX(1,x,y)];
}
}
}
if(ARR_EXISTS(chunk_mask,1,0,1)){
source = GET_ARR_RAW(env,neighborArray,CK(1,0,1));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(x,0,y)] = source[IX(x,DIM-2,y)];
}
}
}
if(ARR_EXISTS(chunk_mask,1,2,1)){
source = GET_ARR_RAW(env,neighborArray,CK(1,2,1));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(x,DIM-1,y)] = source[IX(x,1,y)];
}
}
}
if(ARR_EXISTS(chunk_mask,1,1,0)){
source = GET_ARR_RAW(env,neighborArray,CK(1,1,0));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(x,y,0)] = source[IX(x,y,DIM-2)];
}
}
}
if(ARR_EXISTS(chunk_mask,1,1,2)){
source = GET_ARR_RAW(env,neighborArray,CK(1,1,2));
for(int x=1; x < DIM-1; x++){
for(int y = 1; y < DIM-1; y++){
target[IX(x,y,DIM-1)] = source[IX(x,y,1)];
}
}
}
//
//
// EDGES
//
//
if(ARR_EXISTS(chunk_mask,0,0,1)){
source = GET_ARR_RAW(env,neighborArray,CK(0,0,1));
for(int x=1; x < DIM-1; x++){
target[IX(0,0,x)] = source[IX(DIM-2,DIM-2,x)];
}
}
if(ARR_EXISTS(chunk_mask,2,0,1)){
source = GET_ARR_RAW(env,neighborArray,CK(2,0,1));
for(int x=1; x < DIM-1; x++){
target[IX(DIM-1,0,x)] = source[IX(1,DIM-2,x)];
}
}
if(ARR_EXISTS(chunk_mask,0,2,1)){
source = GET_ARR_RAW(env,neighborArray,CK(0,2,1));
for(int x=1; x < DIM-1; x++){
target[IX(0,DIM-1,x)] = source[IX(DIM-2,1,x)];
}
}
if(ARR_EXISTS(chunk_mask,2,2,1)){
source = GET_ARR_RAW(env,neighborArray,CK(2,2,1));
for(int x=1; x < DIM-1; x++){
target[IX(DIM-1,DIM-1,x)] = source[IX(1,1,x)];
}
}
//
//
if(ARR_EXISTS(chunk_mask,0,1,0)){
source = GET_ARR_RAW(env,neighborArray,CK(0,1,0));
for(int x=1; x < DIM-1; x++){
target[IX(0,x,0)] = source[IX(DIM-2,x,DIM-2)];
}
}
if(ARR_EXISTS(chunk_mask,2,1,0)){
source = GET_ARR_RAW(env,neighborArray,CK(2,1,0));
for(int x=1; x < DIM-1; x++){
target[IX(DIM-1,x,0)] = source[IX(1,x,DIM-2)];
}
}
if(ARR_EXISTS(chunk_mask,0,1,2)){
source = GET_ARR_RAW(env,neighborArray,CK(0,1,2));
for(int x=1; x < DIM-1; x++){
target[IX(0,x,DIM-1)] = source[IX(DIM-2,x,1)];
}
}
if(ARR_EXISTS(chunk_mask,2,1,2)){
source = GET_ARR_RAW(env,neighborArray,CK(2,1,2));
for(int x=1; x < DIM-1; x++){
target[IX(DIM-1,x,DIM-1)] = source[IX(1,x,1)];
}
}
//
//
if(ARR_EXISTS(chunk_mask,1,0,0)){
source = GET_ARR_RAW(env,neighborArray,CK(1,0,0));
for(int x=1; x < DIM-1; x++){
target[IX(x,0,0)] = source[IX(x,DIM-2,DIM-2)];
}
}
if(ARR_EXISTS(chunk_mask,1,2,0)){
source = GET_ARR_RAW(env,neighborArray,CK(1,2,0));
for(int x=1; x < DIM-1; x++){
target[IX(x,DIM-1,0)] = source[IX(x,1,DIM-2)];
}
}
if(ARR_EXISTS(chunk_mask,1,0,2)){
source = GET_ARR_RAW(env,neighborArray,CK(1,0,2));
for(int x=1; x < DIM-1; x++){
target[IX(x,0,DIM-1)] = source[IX(x,DIM-2,1)];
}
}
if(ARR_EXISTS(chunk_mask,1,2,2)){
source = GET_ARR_RAW(env,neighborArray,CK(1,2,2));
for(int x=1; x < DIM-1; x++){
target[IX(x,DIM-1,DIM-1)] = source[IX(x,1,1)];
}
}
//
//
// CORNERS
//
//
if(ARR_EXISTS(chunk_mask,0,0,0)){
source = GET_ARR_RAW(env,neighborArray,CK(0,0,0));
target[IX(0,0,0)] = source[IX(DIM-2,DIM-2,DIM-2)];
}
if(ARR_EXISTS(chunk_mask,2,0,0)){
source = GET_ARR_RAW(env,neighborArray,CK(2,0,0));
target[IX(DIM-1,0,0)] = source[IX(1,DIM-2,DIM-2)];
}
if(ARR_EXISTS(chunk_mask,0,2,0)){
source = GET_ARR_RAW(env,neighborArray,CK(0,2,0));
target[IX(0,DIM-1,0)] = source[IX(DIM-2,1,DIM-2)];
}
if(ARR_EXISTS(chunk_mask,2,2,0)){
source = GET_ARR_RAW(env,neighborArray,CK(2,2,0));
target[IX(DIM-1,DIM-1,0)] = source[IX(1,1,DIM-2)];
}
//
//
if(ARR_EXISTS(chunk_mask,0,0,2)){
source = GET_ARR_RAW(env,neighborArray,CK(0,0,2));
target[IX(0,0,DIM-1)] = source[IX(DIM-2,DIM-2,1)];
}
if(ARR_EXISTS(chunk_mask,2,0,2)){
source = GET_ARR_RAW(env,neighborArray,CK(2,0,2));
target[IX(DIM-1,0,DIM-1)] = source[IX(1,DIM-2,1)];
}
if(ARR_EXISTS(chunk_mask,0,2,2)){
source = GET_ARR_RAW(env,neighborArray,CK(0,2,2));
target[IX(0,DIM-1,DIM-1)] = source[IX(DIM-2,1,1)];
}
if(ARR_EXISTS(chunk_mask,2,2,2)){
source = GET_ARR_RAW(env,neighborArray,CK(2,2,2));
target[IX(DIM-1,DIM-1,DIM-1)] = source[IX(1,1,1)];
}
}
/**
* This exclusively copies neighbors to make sure zeroing out stuff doesn't break sim
*/