Started rewrite

1 files changed, 0 insertions, 326 deletions

diff --git a/src/kernel/graphics/vesa.c b/src/kernel/graphics/vesa.c
deleted file mode 100644
index 7fa4e15..0000000
--- a/src/kernel/graphics/vesa.c
+++ /dev/null
@@ -1,326 +0,0 @@
-#include <fs/load.h>
-#include <graphics/vesa.h>
-#include <lib/stdio.h>
-#include <lib/stdlib.h>
-#include <memory/alloc.h>
-#include <memory/paging.h>
-#include <system.h>
-
-void vbe_error()
-{
-	log("Error in VESA detection script!");
-	warn(RED "Melvix can't work without VESA Support!" RES);
-	halt_loop();
-}
-
-void vbe_set_mode(u16 mode)
-{
-	regs16_t regs;
-	regs.ax = 0x4F02;
-	regs.bx = mode;
-	regs.bx |= 0x4000;
-	v86(0x10, &regs);
-
-	if (regs.ax != 0x004F)
-		vbe_error();
-}
-
-u16 *vbe_get_modes()
-{
-	char *info_address = (char *)0x7E00;
-	strcpy(info_address, "VBE2");
-	for (int i = 4; i < 512; i++)
-		*(info_address + i) = 0;
-
-	regs16_t regs;
-	regs.ax = 0x4F00;
-	regs.es = 0;
-	regs.di = 0x7E00;
-	v86(0x10, &regs);
-
-	struct vbe_info *info = (struct vbe_info *)info_address;
-
-	if (regs.ax != 0x004F || strcmp(info->signature, "VESA") != 0)
-		vbe_error();
-
-	// Get number of modes
-	u16 *mode_ptr = (u16 *)info->video_modes;
-	u32 number_modes = 1;
-	for (u16 *p = mode_ptr; *p != 0xFFFF; p++)
-		number_modes++;
-
-	u16 *ret = (u16 *)malloc(sizeof(u16) * number_modes);
-	for (u32 i = 0; i < number_modes; i++)
-		ret[i] = ((u16 *)info->video_modes)[i];
-
-	return ret;
-}
-
-struct vbe_mode_info *vbe_get_mode_info(u16 mode)
-{
-	regs16_t regs;
-	regs.ax = 0x4F01;
-	regs.cx = mode;
-	regs.es = 0;
-	regs.di = 0x7E00;
-	v86(0x10, &regs);
-	if (regs.ax != 0x004f)
-		return 0;
-
-	struct vbe_mode_info_all *mode_info = (struct vbe_mode_info_all *)0x7E00;
-
-	struct vbe_mode_info *ret = (struct vbe_mode_info *)malloc(sizeof(struct vbe_mode_info));
-	ret->attributes = mode_info->attributes;
-	ret->pitch = mode_info->pitch;
-	ret->width = mode_info->width;
-	ret->height = mode_info->height;
-	ret->bpp = mode_info->bpp;
-	ret->memory_model = mode_info->memory_model;
-	ret->framebuffer = mode_info->framebuffer;
-
-	return ret;
-}
-
-void set_optimal_resolution()
-{
-	log("Switching to graphics mode");
-	log("Trying to detect available modes");
-	u16 *video_modes = vbe_get_modes();
-
-	u16 highest = 0;
-
-	for (u16 *mode = video_modes; *mode != 0xFFFF; mode++) {
-		struct vbe_mode_info *mode_info = vbe_get_mode_info(*mode);
-
-		if (mode_info == 0 || (mode_info->attributes & 0x90) != 0x90 ||
-		    (mode_info->memory_model != 4 && mode_info->memory_model != 6)) {
-			free(mode_info);
-			continue;
-		}
-
-		if (mode_info->width > vbe_width ||
-		    (mode_info->width == vbe_width && (mode_info->bpp >> 3) > vbe_bpl)) {
-			// if (mode_info->bpp == 32) { // Force specific bpp for debugging
-			debug("Found mode: %dx%dx%d", mode_info->width, mode_info->height,
-			      mode_info->bpp);
-			highest = *mode;
-			current_mode_info = mode_info;
-			vbe_width = mode_info->width;
-			vbe_height = mode_info->height;
-			vbe_pitch = mode_info->pitch;
-			vbe_bpl = mode_info->bpp >> 3;
-			fb = (u8 *)mode_info->framebuffer;
-		}
-		free(mode_info);
-	}
-
-	free(video_modes);
-
-	if (highest == 0) {
-		log("Mode detection failed!");
-		log("Trying common modes...");
-		struct vbe_mode_info *mode_info;
-		int modes[] = {
-			322, 287, 286, 285, 284, // 1600x1200
-			356, 355, 354, 353, 352, // 1440x900
-			317, 283, 282, 281, 263, 262, // 1280x1024
-			361, 360, 359, 358, 357, // 1152x720
-			312, 280, 279, 278, 261, 260, // 1024x768
-			366, 365, 364, 363, 362, // 1024x640
-			307, 306, 305, 304, 303, // 896x672
-			302, 277, 267, 275, 259, 258, 106, // 800x600
-			371, 370, 369, 368, 367, // 800x500
-			297, 274, 273, 272, 257, // 640x480
-			292, 291, 290, 289, 256, // 640x400
-			271, 270, 269, // 320x200
-		};
-
-		for (u32 i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) {
-			mode_info = vbe_get_mode_info((u16)modes[i]);
-			if (mode_info == 0 || (mode_info->attributes & 0x90) != 0x90 ||
-			    (mode_info->memory_model != 4 && mode_info->memory_model != 6)) {
-				free(mode_info);
-				continue;
-			}
-
-			if ((mode_info->width > vbe_width ||
-			     (mode_info->width == vbe_width && (mode_info->bpp >> 3) > vbe_bpl))) {
-				highest = (u16)modes[i];
-				vbe_width = mode_info->width;
-				vbe_height = mode_info->height;
-				vbe_pitch = mode_info->pitch;
-				vbe_bpl = mode_info->bpp >> 3;
-				fb = (u8 *)mode_info->framebuffer;
-			}
-			free(mode_info);
-		}
-
-		// Everything else failed :(
-		if (highest == 0)
-			vbe_error();
-	} else {
-		log("Mode detection succeeded");
-	}
-
-	vbe_set_mode(highest);
-
-	/* u32 fb_size = vbe_width * vbe_height * vbe_bpl; */
-	/* cursor_buffer = malloc(fb_size); */
-	/* for (u32 z = 0; z < fb_size; z += PAGE_S) { */
-	/* 	paging_map_user(paging_kernel_directory, (u32)fb + z, (u32)fb + z); */
-	/* } */
-
-	/* dev_make("fb", NULL, (write)fb_write); */
-	/* struct fs_node *node = (struct fs_node *)malloc(sizeof(struct fs_node)); */
-	/* strcpy(node->name, "/dev/fb"); */
-	/* fs_open(node); */
-	/* node->write = (write)fb_write; */
-	/* node->dev->block_size = 0; */
-
-	if (vbe_height > 1440)
-		vesa_set_font(32);
-	else if (vbe_height > 720)
-		vesa_set_font(24);
-	else
-		vesa_set_font(16);
-	//vesa_set_color(default_text_color);
-	//vesa_clear();
-
-	//vesa_set_color(vesa_blue);
-	//vesa_set_color(default_text_color);
-
-	info("Successfully switched to video mode!");
-
-	log("Using mode: (0x%x) %dx%dx%d", highest, vbe_width, vbe_height, vbe_bpl << 3);
-}
-
-const u32 default_text_color = vesa_white;
-const u32 default_background_color = vesa_black;
-u32 terminal_color[3] = { 0xab, 0xb2, 0xbf };
-u32 terminal_background[3] = { 0x1d, 0x1f, 0x24 };
-u16 terminal_x = 0;
-u16 terminal_y = 0;
-int font_width;
-int font_height;
-
-void vesa_set_font(int height)
-{
-	font_width = height / 2;
-	font_height = height;
-}
-
-void vesa_set_pixel(u16 x, u16 y, const u32 color[3])
-{
-	u8 pos = (u8)(x * vbe_bpl + y * vbe_pitch);
-	char *draw = (char *)&fb[pos];
-	draw[pos] = (char)color[2];
-	draw[pos + 1] = (char)color[1];
-	draw[pos + 2] = (char)color[0];
-}
-
-void vesa_draw_rectangle(int x1, int y1, int x2, int y2, const u32 color[3])
-{
-	int pos1 = x1 * vbe_bpl + y1 * vbe_pitch;
-	char *draw = (char *)&fb[pos1];
-	for (int i = 0; i <= y2 - y1; i++) {
-		for (int j = 0; j <= x2 - x1; j++) {
-			draw[vbe_bpl * j] = (char)color[2];
-			draw[vbe_bpl * j + 1] = (char)color[1];
-			draw[vbe_bpl * j + 2] = (char)color[0];
-		}
-		draw += vbe_pitch;
-	}
-}
-
-void vesa_clear()
-{
-	log("%dx%dx%d at %x", vbe_width, vbe_height, vbe_bpl << 3, fb);
-	vesa_draw_rectangle(0, 0, vbe_width - 1, vbe_height - 1, terminal_background);
-	terminal_x = 0;
-	terminal_y = 0;
-}
-
-void vesa_draw_char(char ch)
-{
-	if (ch >= ' ') {
-		int pos = terminal_x * vbe_bpl + terminal_y * vbe_pitch;
-		char *draw = (char *)&fb[pos];
-		u16 bitmap = 0;
-
-		for (int cy = 0; cy <= font_height; cy++) {
-			if (font_height == 16)
-				bitmap = font->font_16[ch - 32][cy];
-			else if (font_height == 24)
-				bitmap = font->font_24[ch - 32][cy] >> 4;
-			else if (font_height == 32)
-				bitmap = font->font_32[ch - 32][cy];
-			for (int cx = 0; cx <= font_width + 1; cx++) {
-				if (bitmap &
-				    ((1 << font_width) >> cx)) { // Side effect: Smoothness factor!
-					draw[vbe_bpl * cx] = (char)terminal_color[2];
-					draw[vbe_bpl * cx + 1] = (char)terminal_color[1];
-					draw[vbe_bpl * cx + 2] = (char)terminal_color[0];
-				} else {
-					draw[vbe_bpl * cx] = (char)terminal_background[2];
-					draw[vbe_bpl * cx + 1] = (char)terminal_background[1];
-					draw[vbe_bpl * cx + 2] = (char)terminal_background[0];
-				}
-			}
-			draw += vbe_pitch;
-		}
-
-		terminal_x += font_width;
-	} else if (ch == '\n') {
-		terminal_x = 0;
-		terminal_y += font_height;
-	} else if (ch == '\t') {
-		terminal_x += 4 * font_width;
-	}
-
-	if (terminal_x >= vbe_width) {
-		terminal_x = 0;
-		terminal_y += font_height;
-	}
-}
-
-int prev_coords[2] = {};
-int first = 1; // TODO: Better initial cursor buffer solution
-void vesa_draw_cursor(int x, int y)
-{
-	// Reset previous area
-	char *reset = (char *)&fb[prev_coords[0] * vbe_bpl + prev_coords[1] * vbe_pitch];
-	char *prev = (char *)&cursor_buffer[prev_coords[0] * vbe_bpl + prev_coords[1] * vbe_pitch];
-	if (!first) {
-		for (int cy = 0; cy <= 19; cy++) {
-			for (int cx = 0; cx <= 12; cx++) {
-				reset[vbe_bpl * cx] = prev[vbe_bpl * cx];
-				reset[vbe_bpl * cx + 1] = prev[vbe_bpl * cx + 1];
-				reset[vbe_bpl * cx + 2] = prev[vbe_bpl * cx + 2];
-			}
-			reset += vbe_pitch;
-			prev += vbe_pitch;
-		}
-	}
-	first = 0;
-
-	// Draw cursor
-	prev_coords[0] = x;
-	prev_coords[1] = y;
-	prev = (char *)&cursor_buffer[x * vbe_bpl + y * vbe_pitch];
-	char *draw = (char *)&fb[x * vbe_bpl + y * vbe_pitch];
-	for (int cy = 0; cy <= 19; cy++) {
-		for (int cx = 0; cx <= 12; cx++) {
-			// Performance issue?
-			prev[vbe_bpl * cx] = draw[vbe_bpl * cx];
-			prev[vbe_bpl * cx + 1] = draw[vbe_bpl * cx + 1];
-			prev[vbe_bpl * cx + 2] = draw[vbe_bpl * cx + 2];
-			if (font->cursor[cy] & ((1 << 12) >> cx)) {
-				draw[vbe_bpl * cx] = (char)terminal_color[2];
-				draw[vbe_bpl * cx + 1] = (char)terminal_color[1];
-				draw[vbe_bpl * cx + 2] = (char)terminal_color[0];
-			}
-		}
-		draw += vbe_pitch;
-		prev += vbe_pitch;
-	}
-}
\ No newline at end of file