-Uint64 BGA_Write(tVFS_Node *node, Uint64 off, Uint64 len, void *Buffer)\r
-{ \r
- ENTER("xoff xlen", off, len);\r
- \r
- // Check Mode\r
- if(giBGA_CurrentMode == -1) {\r
- Log_Notice("BGA", "Setting video mode to #0 (640x480x32)");\r
- BGA_int_UpdateMode(0); // Mode Zero is 640x480\r
- }\r
- \r
- // Text Mode\r
- switch( giBGA_BufferFormat )\r
- {\r
- case VIDEO_BUFFMT_TEXT:\r
- {\r
- tVT_Char *chars = Buffer;\r
- int x, y; // Characters/Rows\r
- int widthInChars = gpBGA_CurrentMode->width/giVT_CharWidth;\r
- Uint32 *dest;\r
- \r
- off /= sizeof(tVT_Char);\r
- len /= sizeof(tVT_Char);\r
- \r
- x = (off % widthInChars);\r
- y = (off / widthInChars);\r
- \r
- // Sanity Check\r
- if(y > gpBGA_CurrentMode->height / giVT_CharHeight) {\r
- LEAVE('i', 0);\r
- return 0;\r
- }\r
- \r
- dest = (Uint32 *)gBGA_Framebuffer;\r
- dest += y * gpBGA_CurrentMode->width * giVT_CharHeight;\r
- while(len--)\r
- {\r
- VT_Font_Render(\r
- chars->Ch,\r
- dest + x*giVT_CharWidth, 32, gpBGA_CurrentMode->width*4,\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 ++; // Why am I keeping track of this?\r
- dest += gpBGA_CurrentMode->width*giVT_CharHeight;\r
- }\r
- }\r
- }\r
- break;\r
- \r
- case VIDEO_BUFFMT_FRAMEBUFFER:\r
- {\r
- Uint8 *destBuf = (Uint8*) ((Uint)gBGA_Framebuffer + (Uint)off);\r
- \r
- if( off + len > gpBGA_CurrentMode->fbSize ) {\r
- LEAVE('i', 0);\r
- return 0;\r
- }\r
- \r
- LOG("buffer = %p", Buffer);\r
- LOG("Updating Framebuffer (%p to %p)", destBuf, destBuf + (Uint)len);\r
- \r
- \r
- // Copy to Frambuffer\r
- memcpy(destBuf, Buffer, len);\r
- \r
- LOG("BGA Framebuffer updated");\r
- }\r
- break;\r
- default:\r
- LEAVE('i', -1);\r
- return -1;\r
- }\r
- \r
- LEAVE('i', len);\r
- return len;\r