void compress_compatability_test ()
{
unsigned char *v = (unsigned char *)malloc (16u);
memset (v, 0, 16u);
if (sizeof(char) !=1 || sizeof(unsigned int) != 4 || sizeof(float) != 4)
fail ();
*(float *)(v+1) = 0.123f;
if (*(unsigned int *)v != 4226247936u || *(unsigned int *)(v+1) != 1039918957u)
fail ();
*(float *)(v+1) = -58;
if (*(unsigned int *)v != 1744830464u || *(unsigned int *)(v+1) != 3261595648u)
fail ();
float f[5] = {0.123f, 1.f, 0.f, 0.123f, 0.f};
memset (v, ~0, 16u);
vector_compress (VECTOR24, v, &f[0], &f[1], &f[2]);
float_compress (FLOAT16, v+6, &f[3]);
float_compress (FLOAT16, v+4, &f[4]);
if (((unsigned int *)v)[0] != 4286318595u || ((unsigned int *)v)[1] != 3753771008u)
fail ();
float_decompress (FLOAT16, v+6, &f[3]);
float_decompress (FLOAT16, v+4, &f[4]);
vector_decompress (VECTOR24, v, &f[0], &f[1], &f[2]);
float ans[5] = {0.109375f,1.015625f,0.015625f,0.123001f,0.000000f};
int i;
for (i=0; i<5; ++i)
if (f[i]-ans[i] > 0.00001f || f[i]-ans[i] < -0.00001f)
fail ();
free (v);
}
void MakeScales(const int threadnum)
{
int i;
unsigned j;
vec3_t delta;
vec_t dist;
int count;
float trans;
patch_t* patch;
patch_t* patch2;
vec3_t origin;
vec_t area;
const vec_t* normal1;
const vec_t* normal2;
#ifdef HLRAD_HULLU
#ifdef HLRAD_TRANSPARENCY_CPP
unsigned int fastfind_index = 0;
#endif
#endif
vec_t total;
#ifdef HLRAD_TRANSFERDATA_COMPRESS
transfer_raw_index_t* tIndex;
float* tData;
transfer_raw_index_t* tIndex_All = (transfer_raw_index_t*)AllocBlock(sizeof(transfer_index_t) * MAX_PATCHES);
float* tData_All = (float*)AllocBlock(sizeof(float) * MAX_PATCHES);
#else
transfer_raw_index_t* tIndex;
transfer_data_t* tData;
transfer_raw_index_t* tIndex_All = (transfer_raw_index_t*)AllocBlock(sizeof(transfer_index_t) * MAX_PATCHES);
transfer_data_t* tData_All = (transfer_data_t*)AllocBlock(sizeof(transfer_data_t) * MAX_PATCHES);
#endif
count = 0;
while (1)
{
i = GetThreadWork();
if (i == -1)
break;
patch = g_patches + i;
patch->iIndex = 0;
patch->iData = 0;
#ifndef HLRAD_TRANSNONORMALIZE
total = 0.0;
#endif
tIndex = tIndex_All;
tData = tData_All;
VectorCopy(patch->origin, origin);
normal1 = getPlaneFromFaceNumber(patch->faceNumber)->normal;
area = patch->area;
#ifdef HLRAD_TRANSLUCENT
vec3_t backorigin;
vec3_t backnormal;
if (patch->translucent_b)
{
VectorMA (patch->origin, -(g_translucentdepth + 2*PATCH_HUNT_OFFSET), normal1, backorigin);
VectorSubtract (vec3_origin, normal1, backnormal);
}
#endif
#ifdef HLRAD_DIVERSE_LIGHTING
bool lighting_diversify;
vec_t lighting_power;
vec_t lighting_scale;
int miptex = g_texinfo[g_dfaces[patch->faceNumber].texinfo].miptex;
lighting_power = g_lightingconeinfo[miptex][0];
lighting_scale = g_lightingconeinfo[miptex][1];
lighting_diversify = (lighting_power != 1.0 || lighting_scale != 1.0);
#endif
// find out which patch2's will collect light
// from patch
// HLRAD_NOSWAP: patch collect light from patch2
for (j = 0, patch2 = g_patches; j < g_num_patches; j++, patch2++)
{
vec_t dot1;
vec_t dot2;
#ifdef HLRAD_HULLU
vec3_t transparency = {1.0,1.0,1.0};
#endif
#ifdef HLRAD_TRANSLUCENT
bool useback;
useback = false;
#endif
if (!g_CheckVisBit(i, j
#ifdef HLRAD_HULLU
, transparency
#ifdef HLRAD_TRANSPARENCY_CPP
, fastfind_index
#endif
#endif
) || (i == j))
{
#ifdef HLRAD_TRANSLUCENT
if (patch->translucent_b)
{
if ((i == j) ||
!CheckVisBitBackwards(i, j, backorigin, backnormal
#ifdef HLRAD_HULLU
, transparency
#endif
))
{
continue;
}
useback = true;
}
else
{
continue;
}
#else
continue;
#endif
}
normal2 = getPlaneFromFaceNumber(patch2->faceNumber)->normal;
// calculate transferemnce
VectorSubtract(patch2->origin, origin, delta);
#ifdef HLRAD_TRANSLUCENT
if (useback)
{
VectorSubtract (patch2->origin, backorigin, delta);
}
#endif
#ifdef HLRAD_ACCURATEBOUNCE
// move emitter back to its plane
VectorMA (delta, -PATCH_HUNT_OFFSET, normal2, delta);
#endif
dist = VectorNormalize(delta);
dot1 = DotProduct(delta, normal1);
#ifdef HLRAD_TRANSLUCENT
if (useback)
{
dot1 = DotProduct (delta, backnormal);
}
#endif
dot2 = -DotProduct(delta, normal2);
#ifdef HLRAD_ACCURATEBOUNCE
#ifdef HLRAD_ACCURATEBOUNCE_ALTERNATEORIGIN
bool light_behind_surface = false;
if (dot1 <= NORMAL_EPSILON)
{
light_behind_surface = true;
}
#else
if (dot1 <= NORMAL_EPSILON)
{
continue;
}
#endif
if (dot2 * dist <= MINIMUM_PATCH_DISTANCE)
{
continue;
}
#endif
#ifdef HLRAD_DIVERSE_LIGHTING
if (lighting_diversify
#ifdef HLRAD_ACCURATEBOUNCE_ALTERNATEORIGIN
&& !light_behind_surface
#endif
)
{
dot1 = lighting_scale * pow (dot1, lighting_power);
}
#endif
trans = (dot1 * dot2) / (dist * dist); // Inverse square falloff factoring angle between patch normals
#ifdef HLRAD_TRANSWEIRDFIX
#ifdef HLRAD_NOSWAP
if (trans * patch2->area > 0.8f)
trans = 0.8f / patch2->area;
#else
// HLRAD_TRANSWEIRDFIX:
// we should limit "trans(patch2receive) * patch1area"
// instead of "trans(patch2receive) * patch2area".
// also raise "0.4f" to "0.8f" ( 0.8/Q_PI = 1/4).
if (trans * area > 0.8f)
trans = 0.8f / area;
#endif
#endif
#ifdef HLRAD_ACCURATEBOUNCE
if (dist < patch2->emitter_range - ON_EPSILON)
{
#ifdef HLRAD_ACCURATEBOUNCE_ALTERNATEORIGIN
if (light_behind_surface)
{
trans = 0.0;
}
#endif
vec_t sightarea;
const vec_t *receiver_origin;
const vec_t *receiver_normal;
const Winding *emitter_winding;
receiver_origin = origin;
receiver_normal = normal1;
#ifdef HLRAD_TRANSLUCENT
if (useback)
{
receiver_origin = backorigin;
receiver_normal = backnormal;
}
#endif
emitter_winding = patch2->winding;
sightarea = CalcSightArea (receiver_origin, receiver_normal, emitter_winding, patch2->emitter_skylevel
#ifdef HLRAD_DIVERSE_LIGHTING
, lighting_power, lighting_scale
#endif
);
vec_t frac;
frac = dist / patch2->emitter_range;
frac = (frac - 0.5f) * 2.0f; // make a smooth transition between the two methods
frac = max (0, min (frac, 1));
trans = frac * trans + (1 - frac) * (sightarea / patch2->area); // because later we will multiply this back
}
#ifdef HLRAD_ACCURATEBOUNCE_ALTERNATEORIGIN
else
{
if (light_behind_surface)
{
continue;
}
}
#endif
#endif
#ifdef HLRAD_ACCURATEBOUNCE_REDUCEAREA
trans *= patch2->exposure;
#endif
#ifdef HLRAD_HULLU
trans = trans * VectorAvg(transparency); //hullu: add transparency effect
#endif
#ifdef HLRAD_TRANSLUCENT
if (patch->translucent_b)
{
if (useback)
{
trans *= VectorAvg (patch->translucent_v);
}
else
{
trans *= 1 - VectorAvg (patch->translucent_v);
}
}
#endif
#ifndef HLRAD_ACCURATEBOUNCE
if (trans >= 0)
#endif
{
#ifndef HLRAD_TRANSWEIRDFIX
#ifdef HLRAD_NOSWAP
send = trans * area;
#else
send = trans * patch2->area;
#endif
// Caps light from getting weird
if (send > 0.4f)
{
#ifdef HLRAD_NOSWAP
trans = 0.4f / area;
#else
trans = 0.4f / patch2->area;
#endif
send = 0.4f;
}
#endif /*HLRAD_TRANSWEIRDFIX*/
#ifndef HLRAD_TRANSNONORMALIZE
total += send;
#endif
#ifdef HLRAD_TRANSFERDATA_COMPRESS
trans = trans * patch2->area;
#else
// scale to 16 bit (black magic)
// BUG: (in MakeRGBScales) convert to integer will lose data. --vluzacn
#ifdef HLRAD_NOSWAP
trans = trans * patch2->area * INVERSE_TRANSFER_SCALE;
#else
trans = trans * area * INVERSE_TRANSFER_SCALE;
#endif /*HLRAD_NOSWAP*/
if (trans >= TRANSFER_SCALE_MAX)
{
trans = TRANSFER_SCALE_MAX;
}
#endif
}
#ifndef HLRAD_ACCURATEBOUNCE
else
{
#if 0
Warning("transfer < 0 (%f): dist=(%f)\n"
" dot1=(%f) patch@(%4.3f %4.3f %4.3f) normal(%4.3f %4.3f %4.3f)\n"
" dot2=(%f) patch@(%4.3f %4.3f %4.3f) normal(%4.3f %4.3f %4.3f)\n",
trans, dist,
dot1, patch->origin[0], patch->origin[1], patch->origin[2], patch->normal[0], patch->normal[1],
patch->normal[2], dot2, patch2->origin[0], patch2->origin[1], patch2->origin[2],
patch2->normal[0], patch2->normal[1], patch2->normal[2]);
#endif
trans = 0.0;
}
#endif
#ifdef HLRAD_ACCURATEBOUNCE
if (trans <= 0.0)
{
continue;
}
#endif
*tData = trans;
*tIndex = j;
tData++;
tIndex++;
patch->iData++;
count++;
}
// copy the transfers out
if (patch->iData)
{
#ifdef HLRAD_TRANSFERDATA_COMPRESS
unsigned data_size = patch->iData * float_size[g_transfer_compress_type] + unused_size;
#else
unsigned data_size = patch->iData * sizeof(transfer_data_t);
#endif
patch->tData = (transfer_data_t*)AllocBlock(data_size);
patch->tIndex = CompressTransferIndicies(tIndex_All, patch->iData, &patch->iIndex);
hlassume(patch->tData != NULL, assume_NoMemory);
hlassume(patch->tIndex != NULL, assume_NoMemory);
ThreadLock();
g_transfer_data_bytes += data_size;
ThreadUnlock();
#ifdef HLRAD_REFLECTIVITY
total = 1 / Q_PI;
#else
#ifdef HLRAD_TRANSNONORMALIZE
#ifdef HLRAD_TRANSTOTAL_HACK
total = g_transtotal_hack / Q_PI;
#else
total = 0.5 / Q_PI;
#endif
#else // BAD assumption when there is SKY.
//
// normalize all transfers so exactly 50% of the light
// is transfered to the surroundings
//
total = 0.5 / total;
#endif
#endif
{
#ifdef HLRAD_TRANSFERDATA_COMPRESS
unsigned x;
transfer_data_t* t1 = patch->tData;
float* t2 = tData_All;
float f;
for (x = 0; x < patch->iData; x++, t1+=float_size[g_transfer_compress_type], t2++)
{
f = (*t2) * total;
float_compress (g_transfer_compress_type, t1, &f);
}
#else
unsigned x;
transfer_data_t* t1 = patch->tData;
transfer_data_t* t2 = tData_All;
for (x = 0; x < patch->iData; x++, t1++, t2++)
{
(*t1) = (*t2) * total;
}
#endif
}
}
}
FreeBlock(tIndex_All);
FreeBlock(tData_All);
ThreadLock();
g_total_transfer += count;
ThreadUnlock();
}
