in-kernel bmp loader

1 files changed, 91 insertions, 27 deletions

diff --git a/video/compositor.c b/video/compositor.c
index d7094b1..2b67385 100644
--- a/video/compositor.c
+++ b/video/compositor.c
@@ -17,22 +17,27 @@
 
 ringbuffer bg_invl;
 
-// TODO: int16 int32 mixed nonsense
-//
+// TODO: int16 int32 mixed nonsense !
 struct window
 {
     uint32_t pid;
     ringbuffer *invl;
+
     struct   pdirectory *vmem; // retreive from task manager?
 
     int16_t  posx;
     int16_t  posy;
+
     uint16_t width;
     uint16_t height;
 
     uint16_t active;
+
     bool draw_border;
     bool draw_meat;
+
+    bool borderless; // never show borders
+    bool fixed;      // can not be moved
 };
 
 struct icon
@@ -127,7 +132,6 @@ static uint32_t get_pixel(uint8_t *src, int x,int y)
 static void put_pixel_alpha(uint8_t *dst, int x,int y, uint32_t color)
 {
     // TODO: do not use hardcoded alpha!
-    uint16_t a=0xaa;
 
     uint32_t col=get_pixel(dst,x,y);
 
@@ -139,10 +143,11 @@ static void put_pixel_alpha(uint8_t *dst, int x,int y, uint32_t color)
     uint8_t src_b=color&0xff;
     uint8_t src_g=(color&0xff00)>>8;             
     uint8_t src_r=(color&0xff0000)>>16;             
+    uint8_t src_a=(color&0xff000000)>>24;             
 
-    uint8_t out_r=((src_r*(0xff-a))>>8)+((a*dst_r)>>8);
-    uint8_t out_g=((src_g*(0xff-a))>>8)+((a*dst_g)>>8);
-    uint8_t out_b=((src_b*(0xff-a))>>8)+((a*dst_b)>>8);
+    uint8_t out_r=((src_r*(src_a))>>8)+(((0xff-src_a)*dst_r)>>8);
+    uint8_t out_g=((src_g*(src_a))>>8)+(((0xff-src_a)*dst_g)>>8);
+    uint8_t out_b=((src_b*(src_a))>>8)+(((0xff-src_a)*dst_b)>>8);
 
     put_pixel(dst, x,y,(out_r<<16)+(out_g<<8)+out_b);
 }
@@ -162,7 +167,6 @@ static void cpy_rect(uint8_t *src,    uint16_t src_x,   uint16_t src_y,
             if(transp&&transp_key==val)continue;
             // TODO: quick workaround for arrow black
             if(alpha)
-
             put_pixel_alpha(dst,dst_x+x,dst_y+y,val);
             else put_pixel(dst,dst_x+x,dst_y+y,val);
 
@@ -508,12 +512,20 @@ void compositor_kb_handle(char c)
 void compositor_mouse_handle(int16_t diff_x,int16_t diff_y, uint8_t key)
 {
 //    klog("%d %d %d",diff_x,diff_y,key);
-    static uint8_t lastkey;
+    static uint8_t lastkey=0;
+
+    if(!(key&2)&&(lastkey&2)) // right mouse click
+    {
+        lastkey=key;
+        klog("tell init to spawn new foolshell");
+        fd_write(get_tty(1),'0'); // tell init to spawn new xterm
+    }
 
     mouse_x+=diff_x;
     mouse_y+=diff_y;
     mouse_k=key;
 
+
     if(mouse_x<0)mouse_x=0;
     if(mouse_y<0)mouse_y=0;
 
@@ -642,13 +654,62 @@ void compositor_mouse_handle(int16_t diff_x,int16_t diff_y, uint8_t key)
     lastkey=key;
 }
 
+
+/** THIS CAN LOAD WINDOWS ARGB BITMAPS WITH BITMAPINFOHEADER */
+void load_bmp(uint8_t *dst,char *filename)
+{
+
+    klog("loading bitmap %s",filename);
+    fd dat=mount_file_open(filename);
+    char B=fd_read(&dat); // 0x0
+    char M=fd_read(&dat); // 0x1
+    //klog("id = %c%c",M,B);
+    if(M!='M'||B!='B')kpanic("not a (windows) bitmap!");
+
+    uint32_t size=(fd_read(&dat))+(fd_read(&dat)<<8)+(fd_read(&dat)<<16)+(fd_read(&dat)<<24); //0x02
+    klog("bytes = 0x%08x",size);
+    
+    // skip next 4 reserved bytes
+    fd_read(&dat);
+    fd_read(&dat);
+    fd_read(&dat);
+    fd_read(&dat);
+
+    uint32_t off=(fd_read(&dat))+(fd_read(&dat)<<8)+(fd_read(&dat)<<16)+(fd_read(&dat)<<24); //0x0a
+    //klog("offset = 0x%08X",off);
+
+    // skip next 4 bytes
+    fd_read(&dat);
+    fd_read(&dat);
+    fd_read(&dat);
+    fd_read(&dat);
+
+    uint32_t w=(fd_read(&dat))+(fd_read(&dat)<<8)+(fd_read(&dat)<<16)+(fd_read(&dat)<<24); //0x12
+    uint32_t h=(fd_read(&dat))+(fd_read(&dat)<<8)+(fd_read(&dat)<<16)+(fd_read(&dat)<<24); //0x16
+    klog("width=%d,height=%d",w,h);
+
+    for(int i=0;i<off-0xa;i++)fd_read(&dat); // skip to data
+
+    // read the image from left to right line by line
+    for(int y=0;y<h;y++)
+    for(int x=0;x<w;x++)
+    {
+        {
+            uint32_t val=(fd_read(&dat)<<24)+(fd_read(&dat)<<16)+(fd_read(&dat)<<8)+(fd_read(&dat));
+            if(x>=vesa_width)continue;
+            if(y>=vesa_height)continue;
+            put_pixel_alpha(dst,x,y,val);
+        }
+    }
+
+}
+
 // load background image or generate one if (param == 0)
 void compositor_set_background(char *ppm_raw_filename)
 {
     // TODO: think about funny things to do with timer and update
     // some generated / or modified bg regularly //
     // uint64_t t=timer_get_ms()/333; //
-
     klog("loading theme...");
     fd bg=mount_file_open(ppm_raw_filename);
 
@@ -663,33 +724,36 @@ void compositor_set_background(char *ppm_raw_filename)
             if(x>=vesa_width)continue;
             if(y>=vesa_height)continue;
             put_pixel(icon_data,x,y,val);
+            put_pixel(bgimage,x,y,val);
             i++;
         }
     }
+
     klog("finished");
 
     // generating simple background... 
-        int center_x=vesa_width/2;
-        int center_y=vesa_height/2;
-
-        int max_dist = center_x*center_x+center_y*center_y;
+    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 x=0;x<vesa_width;x++)
+    {
+        for(int y=0;y<vesa_height;y++)
         {
-            for(int y=0;y<vesa_height;y++)
+            uint32_t val;
+            if(y%2)
             {
-                uint32_t val;
-                if(y%2)
-                {
-                int diffx=center_x-x;
-                int diffy=center_y-y;
-                int dist=diffx*diffx+diffy*diffy;
-                val = 0xaa*dist/max_dist;
-                }
-                else val=0x0;
-                val=0x002b36;
-
-                put_pixel(bgimage,x,y,val);
+            int diffx=center_x-x;
+            int diffy=center_y-y;
+            int dist=diffx*diffx+diffy*diffy;
+            val = 0xaa*dist/max_dist;
             }
+            else val=0x0;
+            //val=0x002b36;
+
+//            put_pixel(bgimage,x,y,val);
         }
+    }
+
+    load_bmp(bgimage,"/home/miguel/skin.bmp");
 }