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re #59 - abuse accelerated masterbrightness processor to crudely implement LCD backlight for DD display methods

This commit is contained in:
zeromus 2017-10-02 14:55:50 -05:00
parent f5c9a36930
commit 3a000b68fd
1 changed files with 23 additions and 4 deletions
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27
desmume/src/frontend/windows/main.cpp
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@ -1639,7 +1639,7 @@ static void OGL_DoDisplay()
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, video.width, video.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, video.finalBuffer());
}
else
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA, video.width,video.height,0,GL_BGRA,GL_UNSIGNED_BYTE,video.finalBuffer());
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, video.width, video.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, video.finalBuffer());
//the ds screen fills the texture entirely, so we dont have garbage at edge to worry about,
//but we need to make sure this is clamped for when filtering is selected
@ -1969,6 +1969,9 @@ static void DoDisplay(bool firstTime)
{
Lock lock (win_backbuffer_sync);
bool ddhw = (GetStyle()&DWS_DDRAW_HW)!=0;
bool ddsw = (GetStyle()&DWS_DDRAW_SW)!=0;
if(displayPostponeType && !displayNoPostponeNext && (displayPostponeType < 0 || timeGetTime() < displayPostponeUntil))
return;
displayNoPostponeNext = false;
@ -1979,6 +1982,23 @@ static void DoDisplay(bool firstTime)
else
ColorspaceConvertBuffer888XTo8888Opaque<true, false>((u32*)video.srcBuffer, video.buffer, video.srcBufferSize / 4);
if(ddhw || ddsw)
{
const NDSDisplayInfo &displayInfo = GPU->GetDisplayInfo();
for(int screen=0;screen<2;screen++)
{
const GLfloat backlightIntensity = displayInfo.backlightIntensity[screen];
if(backlightIntensity == 1.0f) continue;
//abuse accelerated masterbrightness algorithm for this
const int factor = 16-backlightIntensity*16;
const u32 screenSize = 256*video.prescaleHD*192*video.prescaleHD;
u32* dst = video.buffer + screenSize*screen;
GPU->GetEngineMain()->ApplyMasterBrightness<NDSColorFormat_BGR888_Rev,false>(dst,screenSize,GPUMasterBrightMode_Down,(u8)factor);
}
}
if(firstTime)
{
//on single core systems, draw straight to the screen
@ -2016,9 +2036,8 @@ static void DoDisplay(bool firstTime)
aggDraw.hud->clear();
}
bool hw = (GetStyle()&DWS_DDRAW_HW)!=0;
bool sw = (GetStyle()&DWS_DDRAW_SW)!=0;
if(hw || sw)
if(ddhw || ddsw)
{
gldisplay.kill();
DD_DoDisplay();