- \r
- // Text Mode\r
- switch( giVesaCurrentFormat )\r
- {\r
- 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
- \r
- default:\r
- LEAVE('i', -1);\r
- return -1;\r
- }\r
- \r
- LEAVE('X', Length);\r
- return Length;\r