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#include <lib/gdi/gfbdc.h>
#include <lib/base/init.h>
#include <lib/base/init_num.h>
#include <lib/gdi/accel.h>
#include <time.h>
gFBDC *gFBDC::instance;
ePtr<gFBDC> NewgFBDCPtr(void)
{
ePtr<gFBDC> ptr;
gFBDC::getInstance(ptr);
return ptr;
}
gFBDC::gFBDC()
{
instance=this;
fb=new fbClass;
if (!fb->Available())
eFatal("no framebuffer available");
surface.clut.data = 0;
setResolution(720, 576); // default res
reloadSettings();
}
gFBDC::~gFBDC()
{
delete fb;
delete[] surface.clut.data;
instance=0;
}
void gFBDC::calcRamp()
{
#if 0
float fgamma=gamma ? gamma : 1;
fgamma/=10.0;
fgamma=1/log(fgamma);
for (int i=0; i<256; i++)
{
float raw=i/255.0; // IIH, float.
float corr=pow(raw, fgamma) * 256.0;
int d=corr * (float)(256-brightness) / 256 + brightness;
if (d < 0)
d=0;
if (d > 255)
d=255;
ramp[i]=d;
rampalpha[i]=i*alpha/256;
}
#endif
for (int i=0; i<256; i++)
{
int d;
d=i;
d=(d-128)*(gamma+64)/(128+64)+128;
d+=brightness-128; // brightness correction
if (d<0)
d=0;
if (d>255)
d=255;
ramp[i]=d;
rampalpha[i]=i*alpha/256;
}
rampalpha[255]=255; // transparent BLEIBT bitte so.
}
void gFBDC::setPalette()
{
if (!surface.clut.data)
return;
for (int i=0; i<256; ++i)
{
fb->CMAP()->red[i]=ramp[surface.clut.data[i].r]<<8;
fb->CMAP()->green[i]=ramp[surface.clut.data[i].g]<<8;
fb->CMAP()->blue[i]=ramp[surface.clut.data[i].b]<<8;
fb->CMAP()->transp[i]=rampalpha[surface.clut.data[i].a]<<8;
}
fb->PutCMAP();
}
void gFBDC::exec(gOpcode *o)
{
switch (o->opcode)
{
case gOpcode::setPalette:
{
gDC::exec(o);
setPalette();
break;
}
case gOpcode::flip:
{
if (m_enable_double_buffering)
{
gSurface s(surface);
surface = surface_back;
surface_back = s;
fb->setOffset(surface_back.offset);
}
break;
}
case gOpcode::waitVSync:
{
static timeval l;
static int t;
timeval now;
if (t == 1000)
{
gettimeofday(&now, 0);
int diff = (now.tv_sec - l.tv_sec) * 1000 + (now.tv_usec - l.tv_usec) / 1000;
eDebug("%d ms latency (%d fps)", diff, t * 1000 / (diff ? diff : 1));
l = now;
t = 0;
}
++t;
fb->waitVSync();
break;
}
case gOpcode::flush:
fb->blit();
break;
default:
gDC::exec(o);
break;
}
}
void gFBDC::setAlpha(int a)
{
alpha=a;
calcRamp();
setPalette();
}
void gFBDC::setBrightness(int b)
{
brightness=b;
calcRamp();
setPalette();
}
void gFBDC::setGamma(int g)
{
gamma=g;
calcRamp();
setPalette();
}
void gFBDC::setResolution(int xres, int yres)
{
if ((m_xres == xres) && (m_yres == yres))
return;
m_xres = xres; m_yres = yres;
fb->SetMode(m_xres, m_yres, 32);
for (int y=0; y<m_yres; y++) // make whole screen transparent
memset(fb->lfb+y*fb->Stride(), 0x00, fb->Stride());
surface.type = 0;
surface.x = m_xres;
surface.y = m_yres;
surface.bpp = 32;
surface.bypp = 4;
surface.stride = fb->Stride();
surface.data = fb->lfb;
surface.offset = 0;
surface.data_phys = 50*1024*1024; // FIXME
int fb_size = surface.stride * surface.y;
if (fb->getNumPages() > 1)
{
m_enable_double_buffering = 1;
surface_back.type = 0;
surface_back.x = m_xres;
surface_back.y = m_yres;
surface_back.bpp = 32;
surface_back.bypp = 4;
surface_back.stride = fb->Stride();
surface_back.offset = surface.y;
surface_back.data = fb->lfb + fb_size;
surface_back.data_phys = surface.data_phys + fb_size;
fb_size *= 2;
} else
m_enable_double_buffering = 0;
eDebug("%dkB available for acceleration surfaces.", (fb->Available() - fb_size)/1024);
eDebug("resolution: %d x %d x %d (stride: %d)", surface.x, surface.y, surface.bpp, fb->Stride());
if (gAccel::getInstance())
gAccel::getInstance()->setAccelMemorySpace(fb->lfb + fb_size, surface.data_phys + fb_size, fb->Available() - fb_size);
if (!surface.clut.data)
{
surface.clut.colors = 256;
surface.clut.data = new gRGB[surface.clut.colors];
memset(surface.clut.data, 0, sizeof(*surface.clut.data)*surface.clut.colors);
}
surface_back.clut = surface.clut;
m_pixmap = new gPixmap(&surface);
}
void gFBDC::saveSettings()
{
}
void gFBDC::reloadSettings()
{
alpha=255;
gamma=128;
brightness=128;
calcRamp();
setPalette();
}
// eAutoInitPtr<gFBDC> init_gFBDC(eAutoInitNumbers::graphic-1, "GFBDC");
#ifndef SDLDC
eAutoInitPtr<gFBDC> init_gFBDC(eAutoInitNumbers::graphic-1, "GFBDC");
#endif
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