1 files changed, 166 insertions, 0 deletions
diff --git a/lib/gdi/gfbdc.cpp b/lib/gdi/gfbdc.cpp
new file mode 100644
index 00000000..83f681d7
--- /dev/null
+++ b/lib/gdi/gfbdc.cpp
@@ -0,0 +1,166 @@
+#include <lib/gdi/gfbdc.h>
+
+#include <lib/base/init.h>
+#include <lib/base/init_num.h>
+#include <lib/base/econfig.h>
+
+gFBDC *gFBDC::instance;
+
+gFBDC::gFBDC()
+{
+	instance=this;
+	fb=new fbClass;
+
+	if (!fb->Available())
+		eFatal("no framebuffer available");
+
+	fb->SetMode(720, 576, 8);
+	for (int y=0; y<576; y++)																		 // make whole screen transparent
+		memset(fb->lfb+y*fb->Stride(), 0x00, fb->Stride());
+
+	pixmap=new gPixmap();
+	pixmap->x=720;
+	pixmap->y=576;
+	pixmap->bpp=8;
+	pixmap->bypp=1;
+	pixmap->stride=fb->Stride();
+	pixmap->data=fb->lfb;
+	
+	pixmap->clut.colors=256;
+	pixmap->clut.data=new gRGB[pixmap->clut.colors];
+	memset(pixmap->clut.data, 0, sizeof(*pixmap->clut.data)*pixmap->clut.colors);
+	reloadSettings();
+}
+
+gFBDC::~gFBDC()
+{
+	delete pixmap;
+	delete fb;
+	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;
+
+/*		if ( eDVB::getInstance()->getmID == 1 )
+			rampalpha[i]=i*alpha/65535;
+		else*/
+			rampalpha[i]=i*alpha/256;
+	}
+
+	rampalpha[255]=255; // transparent BLEIBT bitte so.
+}
+
+void gFBDC::setPalette()
+{
+	if (!pixmap->clut.data)
+		return;
+	
+	for (int i=0; i<256; ++i)
+	{
+		fb->CMAP()->red[i]=ramp[pixmap->clut.data[i].r]<<8;
+		fb->CMAP()->green[i]=ramp[pixmap->clut.data[i].g]<<8;
+		fb->CMAP()->blue[i]=ramp[pixmap->clut.data[i].b]<<8;
+		fb->CMAP()->transp[i]=rampalpha[pixmap->clut.data[i].a]<<8;
+		if (!fb->CMAP()->red[i])
+			fb->CMAP()->red[i]=0x100;
+	}
+	fb->PutCMAP();
+}
+
+void gFBDC::exec(gOpcode *o)
+{
+	switch (o->opcode)
+	{
+	case gOpcode::setPalette:
+	{
+		gPixmapDC::exec(o);
+		setPalette();
+		break;
+	}
+	default:
+		gPixmapDC::exec(o);
+		break;
+	}
+}
+
+gFBDC *gFBDC::getInstance()
+{
+	return instance;
+}
+
+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::saveSettings()
+{
+	eConfig::getInstance()->setKey("/ezap/osd/alpha", alpha);
+	eConfig::getInstance()->setKey("/ezap/osd/gamma", gamma);
+	eConfig::getInstance()->setKey("/ezap/osd/brightness", brightness);
+}
+
+void gFBDC::reloadSettings()
+{
+	if (eConfig::getInstance()->getKey("/ezap/osd/alpha", alpha))
+		alpha=255;
+	if (eConfig::getInstance()->getKey("/ezap/osd/gamma", gamma))
+		gamma=128;
+	if (eConfig::getInstance()->getKey("/ezap/osd/brightness", brightness))
+		brightness=128;
+
+	calcRamp();
+	setPalette();
+}
+
+eAutoInitP0<gFBDC> init_gFBDC(eAutoInitNumbers::graphic+1, "GFBDC");