+ case VIDEO_BUFFMT_TEXT:\r
+ {\r
+ tVT_Char *chars = Buffer;\r
+ int pitch = gVesa_Modes[giVesaCurrentMode].width;\r
+ int widthInChars = gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth;\r
+ int heightInChars = gVesa_Modes[giVesaCurrentMode].height/giVT_CharHeight;\r
+ int x, y;\r
+ Uint32 *dest = (void*)gpVesa_Framebuffer;\r
+ int i;\r
+ \r
+ Length /= sizeof(tVT_Char);\r
+ Offset /= sizeof(tVT_Char);\r
+ \r
+ LOG("gVesa_Modes[%i].width = %i", giVesaCurrentMode, gVesa_Modes[giVesaCurrentMode].width);\r
+ x = Offset % widthInChars;\r
+ y = Offset / widthInChars;\r
+ LOG("(x,y) = (%i,%i) = [%i,%i]", x, y, x * giVT_CharWidth, y * giVT_CharHeight * pitch);\r
+ LOG("(w,h) = (%i,%i) = [%i,%i]",\r
+ (int)(Length % widthInChars),\r
+ (int)(Length / widthInChars),\r
+ (int)((Length % widthInChars) * giVT_CharWidth),\r
+ (int)((Length / widthInChars) * giVT_CharHeight * pitch)\r
+ );\r
+ \r
+ // Sanity Check\r
+ if(y > heightInChars) {\r
+ LEAVE('i', 0);\r
+ return 0;\r
+ }\r
+ \r
+ if( Offset + Length > heightInChars*widthInChars ) {\r
+ Log_Debug("VESA", "%i + %i > %i*%i (%i)",\r
+ (int)Offset, (int)Length, heightInChars, widthInChars, heightInChars*widthInChars);\r
+ Length = heightInChars*widthInChars - Offset;\r
+ Log_Notice("VESA", "Clipping write size to %i characters", (int)Length);\r
+ }\r
+ \r
+ dest += y * giVT_CharHeight * pitch;\r
+ dest += x * giVT_CharWidth;\r
+ \r
+ LOG("dest = %p", dest);\r
+ \r
+ for( i = 0; i < Length; i++ )\r
+ {\r
+ VT_Font_Render(\r
+ chars->Ch,\r
+ dest + x*giVT_CharWidth, pitch,\r
+ VT_Colour12to24(chars->BGCol),\r
+ VT_Colour12to24(chars->FGCol)\r
+ );\r
+ \r
+ chars ++;\r
+ x ++;\r
+ if( x >= widthInChars ) {\r
+ x = 0;\r
+ y ++;\r
+ dest += pitch*giVT_CharHeight;\r
+ }\r
+ }\r
+ Length *= sizeof(tVT_Char);\r
+ }\r
+ break;\r
+ \r
+ case VIDEO_BUFFMT_FRAMEBUFFER:\r
+ {\r
+ Uint8 *destBuf = (Uint8*) ((Uint)gpVesa_Framebuffer + (Uint)Offset);\r
+ \r
+ if(gVesa_Modes[giVesaCurrentMode].fbSize < Offset+Length)\r
+ {\r
+ Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");\r
+ LEAVE('i', 0);\r
+ return 0;\r
+ }\r
+ \r
+ LOG("buffer = %p", Buffer);\r
+ LOG("Updating Framebuffer (%p to %p)", destBuf, destBuf + (Uint)Length);\r
+ \r
+ \r
+ // Copy to Frambuffer\r
+ memcpy(destBuf, Buffer, Length);\r
+ \r
+ LOG("BGA Framebuffer updated");\r
+ }\r
+ break;\r
+ \r
+ case VIDEO_BUFFMT_2DSTREAM:\r
+ Length = DrvUtil_Video_2DStream(\r
+ NULL, // Single framebuffer, so Ent is unused\r
+ Buffer, Length, &gVesa_2DFunctions, sizeof(gVesa_2DFunctions)\r
+ );\r
+ break;\r