term: depreciate rt, and switch to flanterm

deprecated/rt.c

@@ -0,0 +1,85 @@
+#include "rt.h"
+#include <font.h>
+#include <stdint.h>
+#include <mm/memop.h>
+
+static rt_context _curctx;
+
+void _rt_drawchar(unsigned char c, int x, int y, int fgcolor, int bgcolor)
+{
+	int cx,cy;
+	int mask[8]={128, 64, 32, 16, 8, 4, 2, 1};
+	unsigned char *glyph=VGA8+(int)c*16;
+
+    uint32_t *buf = _curctx.framebuffer;
+
+	for(cy=0;cy<16;cy++){
+		for(cx=0;cx<8;cx++){
+            buf[((y + cy) * _curctx.framebuffer_width) + (x + cx)] = glyph[cy]&mask[cx]?fgcolor:bgcolor;
+		}
+	}
+}
+void _rt_draw_fillchar(int x, int y, int bgcolor, int fgcolor) {
+	int cx,cy;
+    uint32_t *buf = _curctx.framebuffer;
+	for(cy=0;cy<16;cy++){
+		for(cx=0;cx<8;cx++){
+            buf[((y + cy) * _curctx.framebuffer_width) + (x + cx)] = cy > 12 ? fgcolor : bgcolor;
+		}
+	}
+}
+
+int _rt_strlen(char *str) {
+    int i = 0;
+    while (str[i] != '\0') i++;
+    return i;
+}
+
+void rt_init(rt_context ctx) {
+    // Copy the structure
+    char *src = (char*)&ctx;
+    char *dst = (char*)&_curctx;
+    for (unsigned long i = 0; i < sizeof(rt_context); i++) {
+        dst[i] = src[i];
+    }
+
+    // Fill fields
+    _curctx.term_width = _curctx.framebuffer_width / 8;
+    _curctx.term_height = _curctx.framebuffer_height / 16;
+}
+
+void rt_print(char *str) {
+    _rt_draw_fillchar(_curctx.x * 8, _curctx.y * 16, 0x0, 0x0);
+
+    for (int i = 0; i < _rt_strlen(str); i++) {
+        if (str[i] == '\n' && _curctx.use_crlf_ending)
+            if (_curctx.y * 16 >= (int)_curctx.framebuffer_height) {
+                _curctx.y = 0;
+                memset(
+                    _curctx.framebuffer, _curctx.bg_color,
+                    _curctx.framebuffer_width * _curctx.framebuffer_height * sizeof(uint32_t));
+            } else {
+                _curctx.y++;
+            }
+        else if (str[i] == '\n')
+        {
+            if (_curctx.y * 16 >= (int)_curctx.framebuffer_height) {
+                _curctx.y = 0;
+                memset(
+                    _curctx.framebuffer, _curctx.bg_color,
+                    _curctx.framebuffer_width * _curctx.framebuffer_height * sizeof(uint32_t));
+            } else {
+                _curctx.y++;
+            }
+            _curctx.x = 0;
+        }
+        else if (str[i] == '\r')
+            _curctx.x = 0;
+        else {
+            _rt_drawchar(str[i], _curctx.x * 8, _curctx.y * 16, 0xFFFFFF, 0x0);
+            _curctx.x++;
+        }
+    }
+
+    _rt_draw_fillchar(_curctx.x * 8, _curctx.y * 16, 0x0, 0xFFFFFF);
+}

deprecated/rt.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <stdint.h>
+
+typedef struct _rt_ctx {
+  // A pointer to the framebuffer.
+  void *framebuffer;
+
+  // The framebuffer width, in pixels.
+  uint32_t framebuffer_width;
+
+  // The framebuffer height, in pixels.
+  uint32_t framebuffer_height;
+
+  // Set this to 1 if you prefer using DOS line endings to UNIX line endings.
+  int use_crlf_ending;
+
+  // Do we need to show a cursor after printing text?
+  int show_cursor;
+
+  // The background color
+  uint32_t bg_color;
+
+  // The foreground color
+  uint32_t fg_color;
+
+  /*
+   * Do NOT modify everything below me!
+   */
+  // The terminal's width, in columns of 8 pixels.
+  int term_width;
+  // The terminal's height, in rows of 16 pixels.
+  int term_height;
+  // The X position of the cursor, in columns of 8 pixels.
+  int x;
+  // The Y position of the cursor, in rows of 16 pixels.
+  int y;
+} rt_context;
+
+void rt_init(rt_context ctx);
+void rt_print(char *str);