Usermode/AxWin3 - Fixed dropped messages due to small buffer size

[tpg/acess2.git] / Usermode / Applications / axwin3_src / WM / video.c

diff --git a/Usermode/Applications/axwin3_src/WM/video.c b/Usermode/Applications/axwin3_src/WM/video.c
index b3ce1d7..98c88c8 100644 (file)
--- a/Usermode/Applications/axwin3_src/WM/video.c
+++ b/Usermode/Applications/axwin3_src/WM/video.c
@@ -15,6 +15,7 @@
 #include <video.h>
 #include <wm.h>
 #include <string.h>
+#include "include/lowlevel.h"
 
 // === IMPORTS ===
 extern int     giTerminalFD_Input;
@@ -76,6 +77,12 @@ void Video_Setup(void)
        }
        giScreenWidth = dims.PW;
        giScreenHeight = dims.PH;
+       if( giScreenWidth < 640 || giScreenHeight < 480 ) {
+               Video_int_SetBufFmt(PTYBUFFMT_TEXT);
+               _SysDebug("Resoltion too small, 640x480 reqd but %ix%i avail",
+                       giScreenWidth, giScreenHeight);
+               exit(-1);
+       }
        _SysDebug("AxWin3 running at %ix%i", dims.PW, dims.PH);
 
        giVideo_LastDirtyLine = giScreenHeight;
@@ -84,8 +91,16 @@ void Video_Setup(void)
        gpScreenBuffer = malloc( giScreenWidth*giScreenHeight*4 );
 
        // Set cursor position and bitmap
-       // TODO: This will require using the 2DCMD buffer format
-       //_SysIOCtl(giTerminalFD, TERM_IOCTL_SETCURSORBITMAP, &cCursorBitmap);
+       {
+       Video_int_SetBufFmt(PTYBUFFMT_2DCMD);
+       struct ptycmd_header    hdr = {PTY2D_CMD_SETCURSORBMP,0,0};
+       size_t size = sizeof(hdr) + sizeof(cCursorBitmap) + cCursorBitmap.W*cCursorBitmap.H*4;
+       hdr.len_low = size / 4;
+       hdr.len_hi = size / (256*4);
+       _SysWrite(giTerminalFD, &hdr, sizeof(hdr));
+       _SysDebug("size = %i (%04x:%02x * 4)", size, hdr.len_hi, hdr.len_low);
+       _SysWrite(giTerminalFD, &cCursorBitmap, size-sizeof(hdr));
+       }
        Video_SetCursorPos( giScreenWidth/2, giScreenHeight/2 );
 }
 
@@ -132,7 +147,9 @@ void Video_int_SetBufFmt(int NewFmt)
 void Video_SetCursorPos(short X, short Y)
 {
        struct ptycmd_setcursorpos      cmd;
-       cmd.cmd = PTY2D_CMD_SETCURSORPOS;
+       cmd.hdr.cmd = PTY2D_CMD_SETCURSORPOS;
+       cmd.hdr.len_low = sizeof(cmd)/4;
+       cmd.hdr.len_hi = 0;
        cmd.x = giVideo_CursorX = X;
        cmd.y = giVideo_CursorY = Y;