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Implement Display::SetBrightness

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This commit is contained in:
Alex 2023-03-16 18:51:35 +02:00
parent 6a492c6b07
commit 51dd8ba6aa
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
2 changed files with 42 additions and 0 deletions
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40
Core/Video/Display.cpp
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@ -48,6 +48,7 @@ namespace Video
buffer->Color = 0xFFFFFF;
buffer->CursorX = 0;
buffer->CursorY = 0;
buffer->Brightness = 100;
this->Buffers[Index] = buffer;
memset(this->Buffers[Index]->Buffer, 0, Size);
this->Buffers[Index]->Checksum = 0xDEAD;
@ -56,6 +57,12 @@ namespace Video
void Display::SetBuffer(int Index)
{
if (this->Buffers[Index]->Brightness != 100)
this->SetBrightness(this->Buffers[Index]->Brightness, Index);
if (this->Buffers[Index]->Brightness == 0) /* Just clear the buffer */
memset(this->Buffers[Index]->Buffer, 0, this->Buffers[Index]->Size);
memcpy(this->framebuffer.BaseAddress, this->Buffers[Index]->Buffer, this->Buffers[Index]->Size);
}
@ -79,6 +86,39 @@ namespace Video
delete this->Buffers[Index], this->Buffers[Index] = nullptr;
}
void Display::SetBrightness(int Value, int Index)
{
if (this->Buffers[Index] == nullptr)
return;
if (Value > 100)
Value = 100;
else if (Value < 0)
Value = 0;
ScreenBuffer *buffer = this->Buffers[Index];
uint32_t *pixel = (uint32_t *)buffer->Buffer;
for (uint32_t y = 0; y < buffer->Height; y++)
{
for (uint32_t x = 0; x < buffer->Width; x++)
{
uint32_t color = pixel[y * buffer->Width + x];
uint8_t r = color & 0xff;
uint8_t g = (color >> 8) & 0xff;
uint8_t b = (color >> 16) & 0xff;
r = (r * Value) / 100;
g = (g * Value) / 100;
b = (b * Value) / 100;
pixel[y * buffer->Width + x] = (b << 16) | (g << 8) | r;
}
}
buffer->Brightness = Value;
}
void Display::SetBufferCursor(int Index, uint32_t X, uint32_t Y)
{
this->Buffers[Index]->CursorX = X;

2
include/display.hpp
View File

@ -83,6 +83,7 @@ namespace Video
size_t Size;
uint32_t Color;
uint32_t CursorX, CursorY;
char Brightness;
long Checksum;
};
@ -103,6 +104,7 @@ namespace Video
ScreenBuffer *GetBuffer(int Index);
void ClearBuffer(int Index);
void DeleteBuffer(int Index);
void SetBrightness(int Value, int Index);
void SetBufferCursor(int Index, uint32_t X, uint32_t Y);
void GetBufferCursor(int Index, uint32_t *X, uint32_t *Y);
void SetPixel(uint32_t X, uint32_t Y, uint32_t Color, int Index);