Basic VBE driver initializes via multiboot info structure, reduced resolution, putPixel function implemented
This commit is contained in:
parent
2eca761edc
commit
006c902200
5
Makefile
5
Makefile
@ -5,7 +5,7 @@ CC = ${HOME}/opt/cross/bin/i686-elf-gcc
|
|||||||
CPP = ${HOME}/opt/cross/bin/i686-elf-g++
|
CPP = ${HOME}/opt/cross/bin/i686-elf-g++
|
||||||
CFLAGS = -ffreestanding -O2 -Wall -Wextra
|
CFLAGS = -ffreestanding -O2 -Wall -Wextra
|
||||||
|
|
||||||
OFILES = $(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
|
OFILES = $(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o $(BUILD_DIR)/vesa.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
|
||||||
|
|
||||||
SRC_DIR = src
|
SRC_DIR = src
|
||||||
BUILD_DIR = build
|
BUILD_DIR = build
|
||||||
@ -87,3 +87,6 @@ $(BUILD_DIR)/string.o:
|
|||||||
|
|
||||||
$(BUILD_DIR)/PhysicalMemoryManager.o:
|
$(BUILD_DIR)/PhysicalMemoryManager.o:
|
||||||
$(CPP) -c $(SRC_DIR)/kernel/memory/PhysicalMemoryManager.cpp -o $(BUILD_DIR)/PhysicalMemoryManager.o $(CFLAGS) -fno-exceptions -fno-rtti
|
$(CPP) -c $(SRC_DIR)/kernel/memory/PhysicalMemoryManager.cpp -o $(BUILD_DIR)/PhysicalMemoryManager.o $(CFLAGS) -fno-exceptions -fno-rtti
|
||||||
|
|
||||||
|
$(BUILD_DIR)/vesa.o:
|
||||||
|
$(CPP) -c $(SRC_DIR)/kernel/vesa.cpp -o $(BUILD_DIR)/vesa.o $(CFLAGS) -fno-exceptions -fno-rtti
|
||||||
|
@ -19,8 +19,8 @@
|
|||||||
.long 0 # .
|
.long 0 # .
|
||||||
.long 0 # unused
|
.long 0 # unused
|
||||||
.long 0 # set graphics mode
|
.long 0 # set graphics mode
|
||||||
.long 1280 # screen witdh
|
.long 800 # screen witdh
|
||||||
.long 720 # screen height
|
.long 600 # screen height
|
||||||
.long 32 # bpp
|
.long 32 # bpp
|
||||||
|
|
||||||
.section .bss
|
.section .bss
|
||||||
|
@ -3,153 +3,84 @@
|
|||||||
#define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit)))
|
#define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit)))
|
||||||
|
|
||||||
#include "tty/kterm.h"
|
#include "tty/kterm.h"
|
||||||
|
#include "vesa.h"
|
||||||
|
|
||||||
|
|
||||||
void CheckMBT ( multiboot_info_t* mbt ){
|
void CheckMBT ( multiboot_info_t* mbt ){
|
||||||
/* Set MBI to the addresss of the multiboot information structure*/
|
/* Set MBI to the addresss of the multiboot information structure*/
|
||||||
multiboot_info_t * mbi = (multiboot_info_t *) mbt;
|
multiboot_info_t * mbi = (multiboot_info_t *) mbt;
|
||||||
|
|
||||||
/* Print out the flags */
|
/* Print out the flags */
|
||||||
printf("flags = 0x%8x\n", (unsigned) mbi->flags);
|
printf("flags = 0x%8x\n", (unsigned) mbi->flags);
|
||||||
|
|
||||||
/* Are mem_* valid? */
|
/* Are mem_* valid? */
|
||||||
if ( CHECK_FLAG(mbi->flags,0)){
|
if ( CHECK_FLAG(mbi->flags,0)){
|
||||||
printf("mem_lower = %uKB, mem_upper = %uKB\n");
|
printf("mem_lower = %uKB, mem_upper = %uKB\n");
|
||||||
}
|
}
|
||||||
|
|
||||||
/* is boot device valid ? */
|
/* is boot device valid ? */
|
||||||
if (CHECK_FLAG (mbi->flags, 1)){
|
if (CHECK_FLAG (mbi->flags, 1)){
|
||||||
printf("boot_device = 0x0%x\n", (unsigned) mbi->boot_device);
|
printf("boot_device = 0x0%x\n", (unsigned) mbi->boot_device);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* is the command line passed? */
|
/* is the command line passed? */
|
||||||
if (CHECK_FLAG ( mbi->flags,2)){
|
if (CHECK_FLAG ( mbi->flags,2)){
|
||||||
printf("cmdline = %s\n", (char *) mbi->cmdline);
|
printf("cmdline = %s\n", (char *) mbi->cmdline);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Are mods_* valid? */
|
/* Are mods_* valid? */
|
||||||
if(CHECK_FLAG ( mbi->flags, 3)){
|
if(CHECK_FLAG ( mbi->flags, 3)){
|
||||||
multiboot_module_t *mod;
|
multiboot_module_t *mod;
|
||||||
uint32_t i;
|
uint32_t i;
|
||||||
|
|
||||||
printf("mods count = %d, mods_addr = 0x%x\n", (int) mbi->mods_count, (int) mbi->mods_addr);
|
printf("mods count = %d, mods_addr = 0x%x\n", (int) mbi->mods_count, (int) mbi->mods_addr);
|
||||||
|
|
||||||
for(i = 0, mod = (multiboot_module_t *) mbi->mods_addr; i < mbi->mods_count; i++ , mod++){
|
for(i = 0, mod = (multiboot_module_t *) mbi->mods_addr; i < mbi->mods_count; i++ , mod++){
|
||||||
printf(" mod start = 0x%x, mod_end = 0x%x, cmdline = %s\n", (unsigned) mod->mod_start, (unsigned) mod->mod_end, (char*) mod->cmdline);
|
printf(" mod start = 0x%x, mod_end = 0x%x, cmdline = %s\n", (unsigned) mod->mod_start, (unsigned) mod->mod_end, (char*) mod->cmdline);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Bits 4 and 5 are mutually exclusive! */
|
/* Bits 4 and 5 are mutually exclusive! */
|
||||||
if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG(mbi->flags, 5)){
|
if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG(mbi->flags, 5)){
|
||||||
printf("Both bits 4 and 5 are set.\n");
|
printf("Both bits 4 and 5 are set.\n");
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Is the symbol table of a.out valid? */
|
/* Is the symbol table of a.out valid? */
|
||||||
if (CHECK_FLAG(mbi->flags, 4)){
|
if (CHECK_FLAG(mbi->flags, 4)){
|
||||||
multiboot_aout_symbol_table_t *multiboot_aout_sym = &(mbi->u.aout_sym);
|
multiboot_aout_symbol_table_t *multiboot_aout_sym = &(mbi->u.aout_sym);
|
||||||
|
|
||||||
printf( "multiboot_aout_symbol_table: tabsize = 0x%0x, strsize = 0x%x, addr = 0x%x\n",
|
printf( "multiboot_aout_symbol_table: tabsize = 0x%0x, strsize = 0x%x, addr = 0x%x\n",
|
||||||
(unsigned) multiboot_aout_sym->tabsize,
|
(unsigned) multiboot_aout_sym->tabsize,
|
||||||
(unsigned) multiboot_aout_sym->strsize,
|
(unsigned) multiboot_aout_sym->strsize,
|
||||||
(unsigned) multiboot_aout_sym->addr);
|
(unsigned) multiboot_aout_sym->addr);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Is the section header table of ELF valid? */
|
/* Is the section header table of ELF valid? */
|
||||||
if (CHECK_FLAG(mbi->flags, 5)){
|
if (CHECK_FLAG(mbi->flags, 5)){
|
||||||
multiboot_elf_section_header_table_t *multiboot_elf_sec = &(mbi->u.elf_sec);
|
multiboot_elf_section_header_table_t *multiboot_elf_sec = &(mbi->u.elf_sec);
|
||||||
|
|
||||||
printf("multiboot_elf_sec: num = %u, size = 0x%x, addr = 0x%x, shnd = 0x%x\n",
|
printf("multiboot_elf_sec: num = %u, size = 0x%x, addr = 0x%x, shnd = 0x%x\n",
|
||||||
(unsigned) multiboot_elf_sec->num, (unsigned) multiboot_elf_sec->size,
|
(unsigned) multiboot_elf_sec->num, (unsigned) multiboot_elf_sec->size,
|
||||||
(unsigned) multiboot_elf_sec->addr, (unsigned) multiboot_elf_sec->shndx);
|
(unsigned) multiboot_elf_sec->addr, (unsigned) multiboot_elf_sec->shndx);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Draw diagonal blue line */
|
/* Draw diagonal blue line */
|
||||||
if (CHECK_FLAG (mbt->flags, 11)){
|
if (CHECK_FLAG (mbt->flags, 11)){
|
||||||
printf("Can draw!");
|
printf("Can draw!");
|
||||||
|
|
||||||
multiboot_uint32_t color;
|
|
||||||
unsigned i;
|
|
||||||
void *fb = (void *) (unsigned long) mbt->framebuffer_addr;
|
|
||||||
|
|
||||||
switch (mbt->framebuffer_type)
|
|
||||||
{
|
|
||||||
case MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED:
|
|
||||||
{
|
|
||||||
unsigned best_distance, distance;
|
|
||||||
struct multiboot_color *palette;
|
|
||||||
|
|
||||||
palette = (struct multiboot_color *) mbt->framebuffer_palette_addr;
|
// Init vesa driver
|
||||||
|
initVBEDevice(mbt);
|
||||||
|
|
||||||
color = 0;
|
// Turn pixel on in the middle of the screen;
|
||||||
best_distance = 4*256*256;
|
putPixel( 50, 50 , 0x00FFFFFF);
|
||||||
|
|
||||||
for (i = 0; i < mbi->framebuffer_palette_num_colors; i++)
|
putPixel(VbeModeInfo->width / 2 , VbeModeInfo->height / 2 , 0x00FF0000);
|
||||||
{
|
drawLine(50,10, 150, 8, 0x00FF00FF);
|
||||||
distance = (0xff - palette[i].blue) * (0xff - palette[i].blue)
|
|
||||||
+ palette[i].red * palette[i].red
|
|
||||||
+ palette[i].green * palette[i].green;
|
|
||||||
if (distance < best_distance)
|
|
||||||
{
|
|
||||||
color = i;
|
|
||||||
best_distance = distance;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MULTIBOOT_FRAMEBUFFER_TYPE_RGB:
|
|
||||||
color = ((1 << mbt->framebuffer_blue_mask_size) - 1)
|
|
||||||
<< mbt->framebuffer_blue_field_position;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT:
|
}
|
||||||
color = '\\' | 0x0100;
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
color = 0xffffffff;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
for (i = 0; i < mbt->framebuffer_width
|
|
||||||
&& i < mbt->framebuffer_height; i++)
|
|
||||||
{
|
|
||||||
switch (mbt->framebuffer_bpp)
|
|
||||||
{
|
|
||||||
case 8:
|
|
||||||
{
|
|
||||||
multiboot_uint8_t *pixel = fb + mbt->framebuffer_pitch * i + i;
|
|
||||||
*pixel = color;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case 15:
|
|
||||||
case 16:
|
|
||||||
{
|
|
||||||
multiboot_uint16_t *pixel
|
|
||||||
= fb + mbt->framebuffer_pitch * i + 2 * i;
|
|
||||||
*pixel = color;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case 24:
|
|
||||||
{
|
|
||||||
multiboot_uint32_t *pixel
|
|
||||||
= fb + mbt->framebuffer_pitch * i + 3 * i;
|
|
||||||
*pixel = (color & 0xffffff) | (*pixel & 0xff000000);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 32:
|
|
||||||
{
|
|
||||||
multiboot_uint32_t *pixel
|
|
||||||
= fb + mbt->framebuffer_pitch * i + 4 * i;
|
|
||||||
*pixel = color;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
}
|
}
|
@ -35,11 +35,6 @@ extern "C" void putPixel(int pos_x, int pos_y, unsigned char VGA_COLOR , unsigne
|
|||||||
initGDT();
|
initGDT();
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
print_serial("Video mode enabled!\n");
|
|
||||||
printf_serial("VBE mode: 0x%x\n", mbt->vbe_mode);
|
|
||||||
printf_serial("width: %d height: %d bpp: %d\n" , mbt->framebuffer_width, mbt->framebuffer_height, mbt->framebuffer_bpp);
|
|
||||||
|
|
||||||
kernel_main();
|
kernel_main();
|
||||||
|
|
||||||
|
|
||||||
|
@ -1,9 +1,10 @@
|
|||||||
#pragma once
|
#pragma once
|
||||||
|
|
||||||
#include "tty/kterm.h"
|
#include "tty/kterm.h"
|
||||||
#include "io.h"
|
#include "io.h"
|
||||||
|
|
||||||
#define PORT 0x3f8
|
#define PORT 0x3f8
|
||||||
static int init_serial() {
|
|
||||||
|
inline static int init_serial() {
|
||||||
outb(PORT + 1, 0x00); // Disable all interrupts
|
outb(PORT + 1, 0x00); // Disable all interrupts
|
||||||
outb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
|
outb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
|
||||||
outb(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud
|
outb(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud
|
||||||
@ -25,34 +26,34 @@ static int init_serial() {
|
|||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
int is_transmit_empty() {
|
inline int is_transmit_empty() {
|
||||||
return inb(PORT + 5) & 0x20;
|
return inb(PORT + 5) & 0x20;
|
||||||
}
|
}
|
||||||
|
|
||||||
void write_serial(char a) {
|
inline void write_serial(char a) {
|
||||||
while (is_transmit_empty() == 0);
|
while (is_transmit_empty() == 0);
|
||||||
|
|
||||||
outb(PORT,a);
|
outb(PORT,a);
|
||||||
}
|
}
|
||||||
|
|
||||||
int serial_received() {
|
inline int serial_received() {
|
||||||
return inb(PORT + 5) & 1;
|
return inb(PORT + 5) & 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
char read_serial() {
|
inline char read_serial() {
|
||||||
while (serial_received() == 0);
|
while (serial_received() == 0);
|
||||||
|
|
||||||
return inb(PORT);
|
return inb(PORT);
|
||||||
}
|
}
|
||||||
|
|
||||||
void print_serial(const char* string ){
|
inline void print_serial(const char* string ){
|
||||||
for(size_t i = 0; i < strlen(string); i ++){
|
for(size_t i = 0; i < strlen(string); i ++){
|
||||||
write_serial(string[i]);
|
write_serial(string[i]);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
void printf_serial ( const char *format, ...) {
|
inline void printf_serial ( const char *format, ...) {
|
||||||
|
|
||||||
char **arg = (char **)&format;
|
char **arg = (char **)&format;
|
||||||
int c;
|
int c;
|
||||||
@ -113,7 +114,7 @@ void printf_serial ( const char *format, ...) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
void test_serial(){
|
inline void test_serial(){
|
||||||
/** Serial test **/
|
/** Serial test **/
|
||||||
kterm_writestring("Writing to COM1 serial port:");
|
kterm_writestring("Writing to COM1 serial port:");
|
||||||
init_serial();
|
init_serial();
|
||||||
|
128
src/kernel/vesa.cpp
Normal file
128
src/kernel/vesa.cpp
Normal file
@ -0,0 +1,128 @@
|
|||||||
|
#include "vesa.h"
|
||||||
|
VbeInfoBlock* vbeInfo;
|
||||||
|
vbe_mode_info_structure* VbeModeInfo;
|
||||||
|
|
||||||
|
void initVBEDevice(multiboot_info_t* mbt){
|
||||||
|
print_serial("initVBEDevice");
|
||||||
|
|
||||||
|
vbeInfo = (VbeInfoBlock*) mbt->vbe_control_info;
|
||||||
|
printf_serial("Signature: %s, V0x%x\n", vbeInfo->VbeSignature, vbeInfo->VbeVersion);
|
||||||
|
|
||||||
|
VbeModeInfo = (vbe_mode_info_structure*) mbt->vbe_mode_info;
|
||||||
|
|
||||||
|
printf_serial("VESA video mode info: Width: %d Height: %d BPP: %d\n", VbeModeInfo->width, VbeModeInfo->height , VbeModeInfo->bpp);
|
||||||
|
printf_serial("VideoMemory Location: 0x%x \n", VbeModeInfo->framebuffer );
|
||||||
|
}
|
||||||
|
|
||||||
|
void putPixel( int x, int y , uint32_t colour){
|
||||||
|
printf_serial("putPixel x: %d, y: %d\n", x, y);
|
||||||
|
///fb + mbt->framebuffer_pitch * y + 4 * x ,NOTE: this calculation is very important
|
||||||
|
*(uint32_t*) ( VbeModeInfo->framebuffer + VbeModeInfo->pitch * y + 4 * x ) = colour;
|
||||||
|
}
|
||||||
|
void drawLine(int x1, int y1, int x2, int y2, uint32_t colour ){
|
||||||
|
print_serial("drawline\n");
|
||||||
|
// Bresenham's line algorithm??
|
||||||
|
int deltaX = x2 - x1;
|
||||||
|
int deltaY = y2 - y1;
|
||||||
|
int D = 2 * deltaY - deltaX;
|
||||||
|
int y = y1;
|
||||||
|
|
||||||
|
for ( int x = x1; x < x2; x++){
|
||||||
|
putPixel(x,y, colour);
|
||||||
|
if( D > 0){
|
||||||
|
y +=1;
|
||||||
|
D = D - 2 * deltaX;
|
||||||
|
}
|
||||||
|
D = D + 2 * deltaY;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
void drawRect ( int x, int y, int width, int height, uint32_t colour ){
|
||||||
|
print_serial("drawRect\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void blueDiagnalLineTest(multiboot_info_t* mbt){
|
||||||
|
multiboot_uint32_t color;
|
||||||
|
unsigned i;
|
||||||
|
void *fb = (void *) (unsigned long) mbt->framebuffer_addr;
|
||||||
|
|
||||||
|
switch (mbt->framebuffer_type)
|
||||||
|
{
|
||||||
|
case MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED:
|
||||||
|
{
|
||||||
|
unsigned best_distance, distance;
|
||||||
|
struct multiboot_color *palette;
|
||||||
|
|
||||||
|
palette = (struct multiboot_color *) mbt->framebuffer_palette_addr;
|
||||||
|
|
||||||
|
color = 0;
|
||||||
|
best_distance = 4*256*256;
|
||||||
|
|
||||||
|
for (i = 0; i < mbt->framebuffer_palette_num_colors; i++)
|
||||||
|
{
|
||||||
|
distance = (0xff - palette[i].blue) * (0xff - palette[i].blue)
|
||||||
|
+ palette[i].red * palette[i].red
|
||||||
|
+ palette[i].green * palette[i].green;
|
||||||
|
if (distance < best_distance)
|
||||||
|
{
|
||||||
|
color = i;
|
||||||
|
best_distance = distance;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MULTIBOOT_FRAMEBUFFER_TYPE_RGB:
|
||||||
|
color = ((1 << mbt->framebuffer_blue_mask_size) - 1)
|
||||||
|
<< mbt->framebuffer_blue_field_position;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT:
|
||||||
|
color = '\\' | 0x0100;
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
color = 0xffffffff;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
for (i = 0; i < mbt->framebuffer_width
|
||||||
|
&& i < mbt->framebuffer_height; i++)
|
||||||
|
{
|
||||||
|
switch (mbt->framebuffer_bpp)
|
||||||
|
{
|
||||||
|
case 8:
|
||||||
|
{
|
||||||
|
multiboot_uint8_t *pixel = (multiboot_uint8_t*)fb + mbt->framebuffer_pitch * i + i;
|
||||||
|
*pixel = color;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 15:
|
||||||
|
case 16:
|
||||||
|
{
|
||||||
|
multiboot_uint16_t *pixel
|
||||||
|
= (multiboot_uint16_t*)fb + mbt->framebuffer_pitch * i + 2 * i;
|
||||||
|
*pixel = color;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 24:
|
||||||
|
{
|
||||||
|
multiboot_uint32_t *pixel
|
||||||
|
= (multiboot_uint32_t*)fb + mbt->framebuffer_pitch * i + 3 * i;
|
||||||
|
*pixel = (color & 0xffffff) | (*pixel & 0xff000000);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 32:
|
||||||
|
{
|
||||||
|
multiboot_uint32_t *pixel
|
||||||
|
= (multiboot_uint32_t*)fb + mbt->framebuffer_pitch * i + 4 * i;
|
||||||
|
*pixel = color;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
66
src/kernel/vesa.h
Normal file
66
src/kernel/vesa.h
Normal file
@ -0,0 +1,66 @@
|
|||||||
|
#pragma once
|
||||||
|
#include <stdint.h>
|
||||||
|
#include "bootloader/multiboot.h"
|
||||||
|
#include "serial.h"
|
||||||
|
|
||||||
|
struct vbe_mode_info_structure{
|
||||||
|
uint16_t attributes;
|
||||||
|
uint8_t window_a;
|
||||||
|
uint8_t window_b;
|
||||||
|
uint16_t granularity;
|
||||||
|
uint16_t window_size;
|
||||||
|
uint16_t segment_a;
|
||||||
|
uint16_t segment_b;
|
||||||
|
uint32_t win_func_ptr;
|
||||||
|
uint16_t pitch;
|
||||||
|
uint16_t width;
|
||||||
|
uint16_t height;
|
||||||
|
uint8_t w_char;
|
||||||
|
uint8_t y_char;
|
||||||
|
uint8_t planes;
|
||||||
|
uint8_t bpp;
|
||||||
|
uint8_t banks;
|
||||||
|
uint8_t memory_model;
|
||||||
|
uint8_t bank_size;
|
||||||
|
uint8_t image_pages;
|
||||||
|
uint8_t reserved0;
|
||||||
|
|
||||||
|
uint8_t red_mask;
|
||||||
|
uint8_t red_position;
|
||||||
|
uint8_t green_mask;
|
||||||
|
uint8_t green_position;
|
||||||
|
uint8_t blue_mask;
|
||||||
|
uint8_t blue_position;
|
||||||
|
uint8_t reserved_mask;
|
||||||
|
uint8_t reserved_position;
|
||||||
|
uint8_t direct_color_attributes;
|
||||||
|
|
||||||
|
uint32_t framebuffer;
|
||||||
|
uint32_t off_screen_mem_off;
|
||||||
|
uint16_t off_screen_mem_size;
|
||||||
|
uint8_t reserved1[206];
|
||||||
|
}__attribute__((packed));
|
||||||
|
|
||||||
|
struct VbeInfoBlock {
|
||||||
|
char VbeSignature[4];
|
||||||
|
uint16_t VbeVersion;
|
||||||
|
uint16_t OemStringPtr;
|
||||||
|
uint8_t Capabilities;
|
||||||
|
uint16_t VideoModePtr;
|
||||||
|
uint16_t TotalMemory;
|
||||||
|
}__attribute__((packed));
|
||||||
|
|
||||||
|
extern VbeInfoBlock* vbeInfo;
|
||||||
|
extern vbe_mode_info_structure* VbeModeInfo;
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
void initVBEDevice(multiboot_info_t* mbt);
|
||||||
|
|
||||||
|
void blueDiagnalLineTest(multiboot_info_t* mbt);
|
||||||
|
|
||||||
|
|
||||||
|
// Primitive drawing functions
|
||||||
|
void putPixel( int x, int y , uint32_t colour);
|
||||||
|
void drawLine(int x1, int y1, int x2, int y2, uint32_t colour );
|
||||||
|
void drawRect ( int x, int y, int width, int height, uint32_t colour );
|
Loading…
Reference in New Issue
Block a user