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[host] nvfbc: populate damage rectangles

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Quantum 2021-07-10 19:00:04 -04:00 committed by Geoffrey McRae
parent d7f9afb3ba
commit 6b16bb3ea1
1 changed files with 27 additions and 0 deletions
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27
host/platform/Windows/capture/NVFBC/src/nvfbc.c
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@ -28,6 +28,7 @@
#include "common/event.h"
#include "common/thread.h"
#include "common/dpi.h"
#include "common/KVMFR.h"
#include <assert.h>
#include <stdlib.h>
#include <windows.h>
@ -330,6 +331,32 @@ static CaptureResult nvfbc_waitFrame(CaptureFrame * frame,
frame->stride = this->grabStride;
frame->rotation = CAPTURE_ROT_0;
const unsigned int h = (this->height + 127) / 128;
const unsigned int w = (this->width + 127) / 128;
// TODO: use some algorithm to merge large regions
int rectId = 0;
for (unsigned int y = 0; y < h; ++y)
for (unsigned int x = 0; x < w; ++x)
if (this->diffMap[(y*w)+x])
{
if (rectId >= KVMFR_MAX_DAMAGE_RECTS)
{
rectId = 0;
goto done;
}
frame->damageRects[rectId++] = (FrameDamageRect) {
.x = x * 128,
.y = y * 128,
.width = 128,
.height = 128,
};
}
done:
frame->damageRectsCount = rectId;
#if 0
//NvFBC never sets bIsHDR so instead we check for any data in the alpha channel
//If there is data, it's HDR. This is clearly suboptimal