diff options
Diffstat (limited to 'Source/Kernel/Devices/Display/VESADisplay.class.cpp')
| -rw-r--r-- | Source/Kernel/Devices/Display/VESADisplay.class.cpp | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Source/Kernel/Devices/Display/VESADisplay.class.cpp b/Source/Kernel/Devices/Display/VESADisplay.class.cpp index 7c4adca..11b0882 100644 --- a/Source/Kernel/Devices/Display/VESADisplay.class.cpp +++ b/Source/Kernel/Devices/Display/VESADisplay.class.cpp @@ -109,7 +109,7 @@ bool VESADisplay::setMode(mode_t &mode) { regs.ax = 0x4F02; regs.bx = mode.identifier | 0x4000; V86::biosInt(0x10, regs); - if (regs.ax != 0x004F) return false; + if ((regs.ax & 0xFF00) != 0) return false; if (m_currMode.bpp == 8) { //Set palette to 8 bit @@ -300,3 +300,20 @@ void VESADisplay::drawChar(u16int line, u16int col, WChar c, u8int color) { y++; } } + +bool VESADisplay::textScroll(u16int line, u16int col, u16int height, u16int width, u8int color) { + u8int* start = memPos(col * C_FONT_WIDTH, line * C_FONT_HEIGHT); + u32int count = width * C_FONT_WIDTH * m_pixWidth; + u32int diff = C_FONT_HEIGHT * m_currMode.pitch; + putCsrBuff(); + for (int i = 0; i < (height - 1) * C_FONT_HEIGHT; i++) { + memcpy(start, start + diff, count); + start += m_currMode.pitch; + } + for (u32int i = 0; i < width; i++) { + drawChar(line + height - 1, col + i, " ", color); + } + if (m_csrBuff.line == line + height - 1) m_csrBuff.line--; + drawCsr(); + return true; +} |