void BenchmarkScale(unsigned int in_w, unsigned int in_h, unsigned int out_w, unsigned int out_h) {
std::mt19937 rng(12345);
bool use_ssse3 = (CPUFeatures::HasMMX() && CPUFeatures::HasSSE() && CPUFeatures::HasSSE2() && CPUFeatures::HasSSE3() && CPUFeatures::HasSSSE3());
// the queue needs to use enough memory to make sure that the CPU cache is flushed
unsigned int pixels = std::max(in_w * in_h, out_w * out_h);
unsigned int queue_size = 1 + 20000000 / pixels;
unsigned int run_size = queue_size * 20;
// create queue
std::vector<std::unique_ptr<ImageGeneric> > queue_in(queue_size);
std::vector<std::unique_ptr<ImageGeneric> > queue_out(queue_size);
for(unsigned int i = 0; i < queue_size; ++i) {
queue_in[i] = NewImageBGRA(in_w, in_h, rng);
queue_out[i] = NewImageBGRA(out_w, out_h, rng);
}
// run test
unsigned int time_fallback = 0, time_ssse3 = 0;
{
int64_t t1 = hrt_time_micro();
for(unsigned int i = 0; i < run_size; ++i) {
unsigned int ii = i % queue_size;
Scale_BGRA_Fallback(in_w, in_h, queue_in[ii]->m_data[0], queue_in[ii]->m_stride[0],
out_w, out_h, queue_out[ii]->m_data[0], queue_out[ii]->m_stride[0]);
}
int64_t t2 = hrt_time_micro();
time_fallback = (t2 - t1) / run_size;
}
if(use_ssse3) {
int64_t t1 = hrt_time_micro();
for(unsigned int i = 0; i < run_size; ++i) {
unsigned int ii = i % queue_size;
Scale_BGRA_SSSE3(in_w, in_h, queue_in[ii]->m_data[0], queue_in[ii]->m_stride[0],
out_w, out_h, queue_out[ii]->m_data[0], queue_out[ii]->m_stride[0]);
}
int64_t t2 = hrt_time_micro();
time_ssse3 = (t2 - t1) / run_size;
}
// print result
QString in_size = QString("%1x%2").arg(in_w).arg(in_h);
QString out_size = QString("%1x%2").arg(out_w).arg(out_h);
Logger::LogInfo("[BenchmarkScale] " + Logger::tr("BGRA %1 to BGRA %2 | Fallback %3 ms | SSSE3 %4 ms | %5%")
.arg(in_size, 9).arg(out_size, 9).arg(time_fallback, 6).arg(time_ssse3, 6).arg(100 * time_ssse3 / time_fallback, 3));
}
void BenchmarkScale(unsigned int in_w, unsigned int in_h, unsigned int out_w, unsigned int out_h) {
std::mt19937 rng(12345);
#if SSR_USE_X86_ASM
bool use_ssse3 = (CPUFeatures::HasMMX() && CPUFeatures::HasSSE() && CPUFeatures::HasSSE2() && CPUFeatures::HasSSE3() && CPUFeatures::HasSSSE3());
#endif
// the queue needs to use enough memory to make sure that the CPU cache is flushed
unsigned int pixels = std::max(in_w * in_h, out_w * out_h);
unsigned int queue_size = 1 + 20000000 / pixels;
unsigned int run_size = queue_size * 20;
// create queue
std::vector<std::unique_ptr<ImageGeneric> > queue_in(queue_size);
std::vector<std::unique_ptr<ImageGeneric> > queue_out(queue_size);
for(unsigned int i = 0; i < queue_size; ++i) {
queue_in[i] = NewImageBGRA(in_w, in_h, rng);
queue_out[i] = NewImageBGRA(out_w, out_h, rng);
}
// run test
unsigned int time_swscale = 0, time_fallback = 0, time_ssse3 = 0;
{
SwsContext *sws = sws_getCachedContext(NULL,
in_w, in_h, AV_PIX_FMT_BGRA,
out_w, out_h, AV_PIX_FMT_BGRA,
SWS_BILINEAR, NULL, NULL, NULL);
if(sws == NULL) {
Logger::LogError("[BenchmarkScale] " + Logger::tr("Error: Can't get swscale context!", "Don't translate 'swscale'"));
throw LibavException();
}
sws_setColorspaceDetails(sws,
sws_getCoefficients(SWS_CS_ITU709), 0,
sws_getCoefficients(SWS_CS_DEFAULT), 0,
0, 1 << 16, 1 << 16);
int64_t t1 = hrt_time_micro();
for(unsigned int i = 0; i < run_size / 2; ++i) {
unsigned int ii = i % queue_size;
sws_scale(sws, queue_in[ii]->m_data.data(), queue_in[ii]->m_stride.data(), 0, in_h, queue_out[ii]->m_data.data(), queue_out[ii]->m_stride.data());
}
int64_t t2 = hrt_time_micro();
time_swscale = (t2 - t1) / (run_size / 2);
}
{
int64_t t1 = hrt_time_micro();
for(unsigned int i = 0; i < run_size; ++i) {
unsigned int ii = i % queue_size;
Scale_BGRA_Fallback(in_w, in_h, queue_in[ii]->m_data[0], queue_in[ii]->m_stride[0],
out_w, out_h, queue_out[ii]->m_data[0], queue_out[ii]->m_stride[0]);
}
int64_t t2 = hrt_time_micro();
time_fallback = (t2 - t1) / run_size;
}
#if SSR_USE_X86_ASM
if(use_ssse3) {
int64_t t1 = hrt_time_micro();
for(unsigned int i = 0; i < run_size; ++i) {
unsigned int ii = i % queue_size;
Scale_BGRA_SSSE3(in_w, in_h, queue_in[ii]->m_data[0], queue_in[ii]->m_stride[0],
out_w, out_h, queue_out[ii]->m_data[0], queue_out[ii]->m_stride[0]);
}
int64_t t2 = hrt_time_micro();
time_ssse3 = (t2 - t1) / run_size;
}
#endif
// print result
QString in_size = QString("%1x%2").arg(in_w).arg(in_h);
QString out_size = QString("%1x%2").arg(out_w).arg(out_h);
Logger::LogInfo("[BenchmarkScale] " + Logger::tr("BGRA %1 to BGRA %2 | SWScale %3 us | Fallback %4 us (%5%) | SSSE3 %6 us (%7%)")
.arg(in_size, 9).arg(out_size, 9)
.arg(time_swscale, 6)
.arg(time_fallback, 6).arg(100 * time_fallback / time_swscale, 3)
.arg(time_ssse3, 6).arg(100 * time_ssse3 / time_fallback, 3));
}