diff options
Diffstat (limited to 'src/kernel/graphics/vesa.h')
| -rw-r--r-- | src/kernel/graphics/vesa.h | 45 |
1 files changed, 17 insertions, 28 deletions
diff --git a/src/kernel/graphics/vesa.h b/src/kernel/graphics/vesa.h index 9023029..fb9ff54 100644 --- a/src/kernel/graphics/vesa.h +++ b/src/kernel/graphics/vesa.h @@ -3,33 +3,7 @@ #include <stdint.h> -struct vbe_best { - uint8_t bpp; - uint16_t height; - uint16_t width; - uint32_t framebuffer; - uint32_t bytes_per_line; - uint32_t bytes_per_pixel; - uint32_t x_cur_max; - uint32_t y_cur_max; -} __attribute__ ((packed)); - -struct vbe_info { - char signature[4]; // must be "VESA" to indicate valid VBE support - uint16_t version; // VBE version; high byte is major version, low byte is minor version - uint32_t oem; // segment:offset pointer to OEM - uint32_t capabilities; // bitfield that describes card capabilities - uint32_t video_modes; // segment:offset pointer to list of supported video modes - uint16_t video_memory; // amount of video memory in 64KB blocks - uint16_t software_rev; // software revision - uint32_t vendor; // segment:offset to card vendor string - uint32_t product_name; // segment:offset to card model name - uint32_t product_rev; // segment:offset pointer to product revision - char reserved[222]; // reserved for future expansion - char oem_data[256]; // OEM BIOSes store their strings in this area -} __attribute__ ((packed)); - -struct vbe_mode_info { +typedef struct __attribute__ ((packed)) { uint16_t attributes; // deprecated, only bit 7 should be of interest to you, and it indicates the mode supports a linear frame buffer. uint8_t window_a; // deprecated uint8_t window_b; // deprecated @@ -65,6 +39,21 @@ struct vbe_mode_info { uint32_t off_screen_mem_off; uint16_t off_screen_mem_size; // size of memory in the framebuffer but not being displayed on the screen uint8_t reserved1[206]; -} __attribute__ ((packed)); +} vbe_mode_info; + +vbe_mode_info *vbe_set_mode(unsigned short mode); + +typedef struct __attribute__ ((packed)) { + unsigned short di, si, bp, sp, bx, dx, cx, ax; + unsigned short gs, fs, es, ds, eflags; +} regs16_t; + +extern void int32(unsigned char intnum, regs16_t *regs); + +int vbe_current_mode; +int vbe_width; +int vbe_height; +int vbe_bpp; +int vbe_pitch; #endif |