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[host] Added experimental H264 compression to DXGI (disabled by default)

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This is not yet working, the client is yet to be updated to support
decompressing this stream.
This commit is contained in:
Geoffrey McRae
2017-12-29 20:53:52 +11:00
parent 3d9230ac93
commit 03622f61b0
9 changed files with 687 additions and 115 deletions
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24
host/MultiMemcpy.cpp
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@@ -18,7 +18,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "MultiMemcpy.h"
#include "Util.h"
#include "common/memcpySSE.h"
MultiMemcpy::MultiMemcpy()
@@ -27,6 +26,7 @@ MultiMemcpy::MultiMemcpy()
{
m_workers[i].id = (1 << i);
m_workers[i].running = &m_running;
m_workers[i].abort = false;
m_workers[i].start = CreateSemaphore(NULL, 0, 1, NULL);
m_workers[i].thread = CreateThread(0, 0, WorkerFunction, &m_workers[i], 0, NULL);
@@ -44,15 +44,23 @@ MultiMemcpy::~MultiMemcpy()
void MultiMemcpy::Copy(void * dst, void * src, size_t size)
{
if (!m_awake)
Wake();
const size_t block = (size / MULTIMEMCPY_THREADS) & ~0x7F;
if (block == 0)
{
Abort();
memcpySSE(dst, src, size);
return;
}
const size_t block = size / MULTIMEMCPY_THREADS;
Wake();
for (int i = 0; i < MULTIMEMCPY_THREADS; ++i)
{
m_workers[i].dst = (uint8_t *)dst + i * block;
m_workers[i].src = (uint8_t *)src + i * block;
m_workers[i].size = (i + 1) * block - i * block;
if (i == MULTIMEMCPY_THREADS - 1)
m_workers[i].size = size - (block * i);
else
m_workers[i].size = block;
}
INTERLOCKED_OR8(&m_running, (1 << MULTIMEMCPY_THREADS) - 1);
@@ -69,6 +77,12 @@ DWORD WINAPI MultiMemcpy::WorkerFunction(LPVOID param)
{
WaitForSingleObject(w->start, INFINITE);
while(!(*w->running & w->id)) {}
if (w->abort)
{
w->abort = false;
INTERLOCKED_AND8(w->running, ~w->id);
continue;
}
memcpySSE(w->dst, w->src, w->size);
INTERLOCKED_AND8(w->running, ~w->id);