c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup freestyle
|
|
*/
|
|
|
|
#include "SceneHash.h"
|
|
|
|
#include <sstream>
|
|
|
|
namespace Freestyle {
|
|
|
|
string SceneHash::toString()
|
|
{
|
|
stringstream ss;
|
|
ss << hex << _sum;
|
|
return ss.str();
|
|
}
|
|
|
|
void SceneHash::visitNodeViewLayer(NodeViewLayer &node)
|
|
{
|
|
struct RenderData *r = &node.scene().r;
|
|
adler32((unsigned char *)&r->xsch, sizeof(r->xsch)); // resolution_x
|
|
adler32((unsigned char *)&r->ysch, sizeof(r->ysch)); // resolution_y
|
|
adler32((unsigned char *)&r->size, sizeof(r->size)); // resolution_percentage
|
|
|
|
struct FreestyleConfig *config = &node.sceneLayer().freestyle_config;
|
|
adler32((unsigned char *)&config->flags, sizeof(config->flags));
|
|
adler32((unsigned char *)&config->crease_angle, sizeof(config->crease_angle));
|
|
adler32((unsigned char *)&config->sphere_radius, sizeof(config->sphere_radius));
|
|
adler32((unsigned char *)&config->dkr_epsilon, sizeof(config->dkr_epsilon));
|
|
}
|
|
|
|
void SceneHash::visitNodeCamera(NodeCamera &cam)
|
|
{
|
|
double *proj = cam.projectionMatrix();
|
|
for (int i = 0; i < 16; i++) {
|
|
adler32((unsigned char *)&proj[i], sizeof(double));
|
|
}
|
|
}
|
|
|
|
void SceneHash::visitIndexedFaceSet(IndexedFaceSet &ifs)
|
|
{
|
|
const float *v = ifs.vertices();
|
|
const unsigned n = ifs.vsize();
|
|
|
|
for (unsigned i = 0; i < n; i++) {
|
|
adler32((unsigned char *)&v[i], sizeof(v[i]));
|
|
}
|
|
}
|
|
|
|
static const int MOD_ADLER = 65521;
|
|
|
|
void SceneHash::adler32(const unsigned char *data, int size)
|
|
{
|
|
uint32_t sum1 = _sum & 0xffff;
|
|
uint32_t sum2 = (_sum >> 16) & 0xffff;
|
|
|
|
for (int i = 0; i < size; i++) {
|
|
sum1 = (sum1 + data[i]) % MOD_ADLER;
|
|
sum2 = (sum1 + sum2) % MOD_ADLER;
|
|
}
|
|
_sum = sum1 | (sum2 << 16);
|
|
}
|
|
|
|
} /* namespace Freestyle */
|