- \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 * giVT_CharWidth;\r
- int x, y;\r
- Uint32 *dest;\r
- int rem;\r
- \r
- Offset /= sizeof(tVT_Char);\r
- dest = (void*)gVesaFramebuffer;\r
- LOG("gVesa_Modes[%i].width = %i", giVesaCurrentMode, gVesa_Modes[giVesaCurrentMode].width);\r
- x = (Offset % (gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth)) * giVT_CharWidth;\r
- y = (Offset / (gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth)) * giVT_CharHeight;\r
- LOG("(x,y) = (%i,%i)", x, y);\r
- \r
- // Sanity Check\r
- if(y > gVesa_Modes[giVesaCurrentMode].height) {\r
- LEAVE('i', 0);\r
- return 0;\r
- }\r
- \r
- dest += y * pitch;\r
- dest += x * giVT_CharWidth;\r
- for( rem = Length / sizeof(tVT_Char); rem--; )\r
- {\r
- VT_Font_Render(\r
- chars->Ch,\r
- dest, pitch,\r
- VT_Colour12to24(chars->BGCol),\r
- VT_Colour12to24(chars->FGCol)\r
- );\r
- \r
- dest += giVT_CharWidth;\r
- \r
- chars ++;\r
- x += giVT_CharWidth;\r
- if( x >= pitch ) {\r
- x = 0;\r
- y += giVT_CharHeight;\r
- dest += pitch*(giVT_CharHeight-1);\r
- }\r
- }\r
- Length /= sizeof(tVT_Char);\r
- Length *= sizeof(tVT_Char);\r
- }\r
- break;\r
- \r
- case VIDEO_BUFFMT_FRAMEBUFFER:\r
- {\r
- Uint8 *destBuf = (Uint8*) ((Uint)gVesaFramebuffer + (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
- default:\r
- LEAVE('i', -1);\r
- return -1;\r
- }\r
- \r
- LEAVE('X', Length);\r
- return Length;\r