X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FModules%2FDisplay%2FVESA%2Fmain.c;h=13fe798a902d6503b6e6ebc54c603cb51d683660;hb=e0c2db5162472ab3835ac5ce4da45dc58b41e252;hp=c9e3c84d8455da3e78f4819d6e5b1bd8a61ff140;hpb=533ed3e53b3b16da86c4e792eb52e0570e2cd21f;p=tpg%2Facess2.git

diff --git a/KernelLand/Modules/Display/VESA/main.c b/KernelLand/Modules/Display/VESA/main.c
index c9e3c84d..13fe798a 100644
--- a/KernelLand/Modules/Display/VESA/main.c
+++ b/KernelLand/Modules/Display/VESA/main.c
@@ -67,11 +67,19 @@ tTimer	*gpVesaCursorTimer;
  int	gbVesa_CursorVisible = 0;
 // --- 2D Video Stream Handlers ---
 tDrvUtil_Video_BufInfo	gVesa_BufInfo;
+// --- Settings ---
+// int	gbVesa_DisableFBCache;	// Disables the main-memory framebuffer cache
 
 // === CODE ===
 int Vesa_Install(char **Arguments)
 {
 	 int	rv;
+
+//	for( int i = 0; Arguments[i]; i ++ )
+//	{
+//		if( strcmp(Aguments[i], "nocache") == 0 )
+//			gbVesa_DisableFBCache = 1;
+//	}
 	
 	gpVesa_BiosState = VM8086_Init();
 	
@@ -112,6 +120,8 @@ int VBE_int_GetModeList(void)
 	}
 	
 	modes = (Uint16 *) VM8086_GetPointer(gpVesa_BiosState, info->VideoModes.seg, info->VideoModes.ofs);
+	LOG("Virtual addres of mode list from %04x:%04x is %p",
+		info->VideoModes.seg, info->VideoModes.ofs, modes);
 //	VM8086_Deallocate( gpVesa_BiosState, info );
 	
 	// Count Modes
@@ -155,6 +165,7 @@ void VBE_int_FillMode_Int(int Index, tVesa_CallModeInfo *vbeinfo, tFarPtr *BufPt
 		return ;
 	}
 
+	#if 0
 	#define S_LOG(s, fld, fmt)	LOG(" ."#fld" = "fmt, (s).fld)
 	LOG("vbeinfo[0x%x] = {", mode->code);
 	S_LOG(*vbeinfo, attributes, "0x%02x");
@@ -166,6 +177,7 @@ void VBE_int_FillMode_Int(int Index, tVesa_CallModeInfo *vbeinfo, tFarPtr *BufPt
 	S_LOG(*vbeinfo, segmentB, "0x%04x");
 	LOG(" .realFctPtr = %04x:%04x", vbeinfo->realFctPtr.seg, vbeinfo->realFctPtr.ofs);
 	S_LOG(*vbeinfo, pitch, "0x%04x");
+
 	// -- Extended
 	S_LOG(*vbeinfo, Xres, "%i");
 	S_LOG(*vbeinfo, Yres, "%i");
@@ -194,6 +206,7 @@ void VBE_int_FillMode_Int(int Index, tVesa_CallModeInfo *vbeinfo, tFarPtr *BufPt
 	S_LOG(*vbeinfo, image_count_banked, "%i");
 	S_LOG(*vbeinfo, image_count_lfb, "%i");
 	LOG("}");
+	#endif
 
 	mode->flags = FLAG_POPULATED;
 	if( !(vbeinfo->attributes & 1) ) {
@@ -283,15 +296,11 @@ int Vesa_IOCtl(tVFS_Node *Node, int ID, void *Data)
 		return Vesa_Int_ModeInfo((tVideo_IOCtl_Mode*)Data);
 	
 	case VIDEO_IOCTL_SETBUFFORMAT:
-		LOG("Hide cursor");
 		Vesa_int_HideCursor();
-		LOG("Update internals");
 		ret = gVesa_BufInfo.BufferFormat;
 		if(Data)	gVesa_BufInfo.BufferFormat = *(int*)Data;
-		LOG("Swap back to text mode cursor");
 		if(gVesa_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)
 			DrvUtil_Video_SetCursor( &gVesa_BufInfo, &gDrvUtil_TextModeCursor );
-		LOG("Show again");
 		Vesa_int_ShowCursor();
 		return ret;
 	
@@ -358,6 +367,8 @@ int Vesa_Int_SetMode(int mode)
 	
 	Mutex_Release( &glVesa_Lock );
 
+	gVesa_BufInfo.BackBuffer  = realloc(gVesa_BufInfo.BackBuffer,
+		gVesa_Modes[mode].height * gVesa_Modes[mode].pitch);
 	gVesa_BufInfo.Framebuffer = gpVesa_Framebuffer;
 	gVesa_BufInfo.Pitch = gVesa_Modes[mode].pitch;
 	gVesa_BufInfo.Width = gVesa_Modes[mode].width;
@@ -370,14 +381,14 @@ int Vesa_Int_SetMode(int mode)
 int Vesa_Int_FindMode(tVideo_IOCtl_Mode *data)
 {
 	 int	i;
-	 int	best = -1, bestFactor = 1000;
-	 int	factor, tmp;
+	 int	best = -1, tmp;
+	unsigned int factor, bestFactor = -1;
 	
 	ENTER("idata->width idata->height idata->bpp", data->width, data->height, data->bpp);
 
 	Vesa_int_FillModeList();
 	
-	for(i=0;i<giVesaModeCount;i++)
+	for(i = 0; i < giVesaModeCount; i ++)
 	{
 		LOG("Mode %i (%ix%ix%i)", i, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
 	
@@ -396,7 +407,7 @@ int Vesa_Int_FindMode(tVideo_IOCtl_Mode *data)
 		tmp = gVesa_Modes[i].width * gVesa_Modes[i].height;
 		tmp -= data->width * data->height;
 		tmp = tmp < 0 ? -tmp : tmp;
-		factor = tmp * 1000 / (data->width * data->height);
+		factor = (Uint64)tmp * 1000 / (data->width * data->height);
 		
 		if( data->bpp == 8 && gVesa_Modes[i].bpp != 8 )	continue;
 		if( data->bpp == 16 && gVesa_Modes[i].bpp != 16 )	continue;