From 5aeab1c853e487aa0042d5c32200d623efe908d3 Mon Sep 17 00:00:00 2001
From: Miguel <m.i@gmx.at>
Date: Sat, 13 Oct 2018 17:18:49 +0200
Subject: fontstuff et al.

---
 video/compositor.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 59 insertions(+), 6 deletions(-)

(limited to 'video')

diff --git a/video/compositor.c b/video/compositor.c
index 4debe9a..d6689a7 100644
--- a/video/compositor.c
+++ b/video/compositor.c
@@ -5,6 +5,7 @@
 #include "kmalloc.h"
 #include "log.h"
 #include "vmem.h"
+#include "timer.h"
 #include "asm_x86.h"
 
 #include "mount.h"
@@ -32,6 +33,9 @@ struct window
 
 struct window windows[MAX_WINDOWS];
 
+static uint32_t display_width=1920;
+static uint32_t display_height=1080;
+
 static uint16_t next_window=0;
 static uint16_t next_x=50;
 static uint16_t next_y=50;
@@ -156,15 +160,27 @@ static void put_mouse()
 {
     if(mouse_k&1)
     {
-        for(int i=-5;i<5;i++)
-        for(int j=-5;j<5;j++)
-        backbuffer[(mouse_y+j)*vesa_width+mouse_x+i]=0x00ff00;
+        for(int i=0;i<1;i++)
+        for(int j=0;j<display_height;j++)
+//        backbuffer[(mouse_y+j)*vesa_width+mouse_x+i]=0x00ff00;
+        backbuffer[(j)*vesa_width+mouse_x+i]=0x0044ee;
+
+        for(int i=0;i<display_width;i++)
+        for(int j=0;j<1;j++)
+//      backbuffer[(mouse_y+j)*vesa_width+mouse_x+i]=0x00ff00;
+        backbuffer[(mouse_y+j)*vesa_width+i]=0x0044ee;
     }
     else
     {
-        for(int i=-5;i<5;i++)
-        for(int j=-5;j<5;j++)
-        backbuffer[(mouse_y+i)*vesa_width+mouse_x+j]=0xff0000;
+        for(int i=0;i<1;i++)
+        for(int j=0;j<display_height;j++)
+//        backbuffer[(mouse_y+j)*vesa_width+mouse_x+i]=0x00ff00;
+        backbuffer[(j)*vesa_width+mouse_x+i]=0x000099;
+
+        for(int i=0;i<display_width;i++)
+        for(int j=0;j<1;j++)
+//      backbuffer[(mouse_y+j)*vesa_width+mouse_x+i]=0x00ff00;
+        backbuffer[(mouse_y+j)*vesa_width+i]=0x000099;
     }
 }
 
@@ -236,6 +252,8 @@ void compositor_swap_buffers()
 //    klog("swap");
 // background    
     memcpy(backbuffer,bgimage,vesa_height*vesa_width*4);// TODO optimize? rects only too?
+   // compositor_set_background(0);
+
     
     for(int i=next_window-1;i>=0;i--)
     {
@@ -316,8 +334,22 @@ void compositor_mouse_handle(uint16_t x,uint16_t y, uint8_t key)
     }
 }
 
+// https://stackoverflow.com/questions/3581528/how-is-the-square-root-function-implemented
+double sqroot(double n){
+  double lo = 0, hi = n, mid;
+  for(int i = 0 ; i < 10 ; i++){
+      mid = (lo+hi)/2;
+      if(mid*mid == n) return mid;
+      if(mid*mid > n) hi = mid;
+      else lo = mid;
+  }
+  return mid;
+}
+
 void compositor_set_background(char *ppm_raw_filename)
 {
+//  uint64_t t=timer_get_ms()/333;
+    /*
     klog("loading bg...");
     fd bg=mount_file_open(ppm_raw_filename);
 
@@ -334,4 +366,25 @@ void compositor_set_background(char *ppm_raw_filename)
     }
 
     klog("finished");
+    */
+
+    int center_x=vesa_width/2;
+    int center_y=vesa_height/2;
+
+    int max_dist = center_x*center_x+center_y*center_y;
+
+    for(int x=0;x<vesa_width;x++)
+    {
+        for(int y=0;y<vesa_height;y++)
+        {
+            int diffx=center_x-x;
+            int diffy=center_y-y;
+            int dist=diffx*diffx+diffy*diffy;
+            int val = 0xff*dist/max_dist;
+
+            bgimage[x+y*vesa_width]=val;
+            //backbuffer[x+y*vesa_width]=valr<<16;
+        }
+    }
+
 }
-- 
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