Changeset 83b1d61 in mainline for fb/fb.c

Timestamp:

2006-06-02T13:30:37Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

bb51e9a8

Parents:

bd929cfb

Message:

Added mmap, munmap calls.
Added possibility to access framebuffer using shared memory.

File:

• fb/fb.c (modified) (4 diffs)

fb/fb.c

@@ -41 +41 @@
 #include <kernel/errno.h>
 #include <async.h>
+
 #include "font-8x16.h"
 #include "helenos.xbm"
 #include "fb.h"
+#include "main.h"
+#include "../console/screenbuffer.h"
 
 #define DEFAULT_BGCOLOR                0x000080
@@ -459 +462 @@
 }
 
+static void draw_text_data(int vp, keyfield_t *data)
+{
+        viewport_t *vport = &viewports[vp];
+        int i;
+        char c;
+
+        clear_port(vp);
+        for (i=0; i < vport->cols * vport->rows; i++) {
+                if (data[i].character == ' ') /* TODO: && data[i].style==vport->style */
+                        continue;
+                draw_char(vp, data[i].character, i/vport->rows, i % vport->cols);
+        }
+        cursor_print(vp);
+}
+
+
 /** Function for handling connections to FB
  *
@@ -470 +489 @@
         unsigned int row,col;
         char c;
+        keyfield_t *interbuffer = NULL;
+        size_t intersize = 0;
 
         int vp = 0;
@@ -495 +516 @@
                         ipc_answer_fast(callid,0,0,0);
                         return; /* Exit thread */
+                case IPC_M_AS_AREA_SEND:
+                        /* We accept one area for data interchange */
+                        intersize = IPC_GET_ARG2(call);
+                        receive_comm_area(callid,&call,(void **)&interbuffer,
+                                          sizeof(*interbuffer)*viewports[0].cols*viewports[0].rows);
+                        continue;
+
+                case FB_DRAW_TEXT_DATA:
+                        if (!interbuffer) {
+                                retval = EINVAL;
+                                break;
+                        }
+                        if (intersize < vport->cols*vport->rows*sizeof(*interbuffer)) {
+                                retval = EINVAL;
+                                break;
+                        }
+                        draw_text_data(vp, interbuffer);
+                        retval = 0;
+                        break;
                 case FB_PUTCHAR:
                         c = IPC_GET_ARG1(call);