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Optimize Scroll() function

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This commit is contained in:
Alex 2023-02-16 03:00:00 +02:00
parent 5ae9cbf27b
commit 78e1748233
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 5 additions and 10 deletions
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15
Core/Video/Display.cpp
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@ -125,16 +125,11 @@ namespace Video
if (Lines > 0)
{
for (uint32_t i = 0; i < this->CurrentFont->GetInfo().Height; i++) // TODO: Make this more efficient.
{
memmove(this->Buffers[Index]->Buffer,
(uint8_t *)this->Buffers[Index]->Buffer + (this->Buffers[Index]->Width * (this->framebuffer.BitsPerPixel / 8) * Lines),
this->Buffers[Index]->Size - (this->Buffers[Index]->Width * (this->framebuffer.BitsPerPixel / 8) * Lines));
memset((uint8_t *)this->Buffers[Index]->Buffer + (this->Buffers[Index]->Size - (this->Buffers[Index]->Width * (this->framebuffer.BitsPerPixel / 8) * Lines)),
0,
this->Buffers[Index]->Width * (this->framebuffer.BitsPerPixel / 8) * Lines);
}
uint32_t LineSize = this->Buffers[Index]->Width * (this->framebuffer.BitsPerPixel / 8);
uint32_t BytesToMove = LineSize * Lines * this->CurrentFont->GetInfo().Height;
uint32_t BytesToClear = this->Buffers[Index]->Size - BytesToMove;
memmove(this->Buffers[Index]->Buffer, (uint8_t *)this->Buffers[Index]->Buffer + BytesToMove, BytesToClear);
memset((uint8_t *)this->Buffers[Index]->Buffer + BytesToClear, 0, BytesToMove);
}
}