From d4ee50199a7a365c6f770e65ce6d0d17f3292f3d Mon Sep 17 00:00:00 2001 From: Franklin Wei Date: Fri, 6 Feb 2015 22:13:55 -0500 Subject: new (working) vga driver --- drivers/vga.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 drivers/vga.c (limited to 'drivers') diff --git a/drivers/vga.c b/drivers/vga.c new file mode 100644 index 0000000..cfcd287 --- /dev/null +++ b/drivers/vga.c @@ -0,0 +1,20 @@ +#include +#include +#include "multiboot.h" +#include "vga.h" + +static uint8_t *framebuffer = NULL; +static uint16_t fb_width; +static uint16_t fb_height; + +void vga_drawpixel(int x, int y, uint32_t pixel) +{ + ((uint32_t*)framebuffer)[y * fb_width + x] = pixel; +} + +void vga_init(struct vbe_info_t *vbe_mode_info) +{ + framebuffer = vbe_mode_info->physbase; + fb_width = vbe_mode_info->Xres; + fb_height = vbe_mode_info->Yres; +} -- cgit v1.1