mirrors/Bochs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Now using WIN32 event / wait functions in the Voodoo2 thread. I noticed a speed

Browse Source 
improvement of around 10 % (tested with donut demo only).
TODO: Use similar functions of the pthread library for improvements on other
platforms.
This commit is contained in:
Volker Ruppert 2017-08-08 18:23:12 +00:00
parent bd39f8c103
commit 3cee1f74ee
3 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
bochs/iodev/display/voodoo.cc
View File

@ -164,10 +164,18 @@ BX_THREAD_FUNC(cmdfifo_thread, indata)
{
UNUSED(indata);
while (1) {
#ifndef WIN32
while (!v->fbi.cmdfifo[0].enable || (v->fbi.cmdfifo[0].depth < v->fbi.cmdfifo[0].depth_needed)) {
BX_MSLEEP(1);
}
cmdfifo_process();
#else
if (WaitForSingleObject(v->fbi.cmdfifo[0].event, 1) == WAIT_OBJECT_0) {
while (v->fbi.cmdfifo[0].enable && (v->fbi.cmdfifo[0].depth >= v->fbi.cmdfifo[0].depth_needed)) {
cmdfifo_process();
}
}
#endif
}
BX_THREAD_EXIT;
}
@ -187,6 +195,9 @@ bx_voodoo_c::~bx_voodoo_c()
if (BX_VOODOO_THIS s.model == VOODOO_2) {
BX_THREAD_KILL(cmdfifo_thread_var);
BX_FINI_MUTEX(cmdfifo_mutex);
#ifdef WIN32
CloseHandle(v->fbi.cmdfifo[0].event);
#endif
}
if (v != NULL) {
free(v->fbi.ram);
@ -245,6 +256,9 @@ void bx_voodoo_c::init(void)
if (BX_VOODOO_THIS s.model == VOODOO_2) {
v->fbi.cmdfifo[0].depth_needed = BX_MAX_BIT32U;
BX_INIT_MUTEX(cmdfifo_mutex);
#ifdef WIN32
v->fbi.cmdfifo[0].event = CreateEvent(NULL, FALSE, FALSE, "cmdfifo_event");
#endif
BX_THREAD_CREATE(cmdfifo_thread, this, cmdfifo_thread_var);
}

3
bochs/iodev/display/voodoo_data.h
View File

@ -1439,6 +1439,9 @@ struct _cmdfifo_info
Bit32u depth; /* current depth */
Bit32u depth_needed; /* depth needed for command */
Bit32u holes; /* number of holes */
#ifdef WIN32
HANDLE event;
#endif
};

5
bochs/iodev/display/voodoo_func.h
View File

@ -2466,6 +2466,11 @@ void cmdfifo_w(Bit32u fbi_offset, Bit32u data)
if (v->fbi.cmdfifo[0].depth_needed == BX_MAX_BIT32U) {
v->fbi.cmdfifo[0].depth_needed = cmdfifo_calc_depth_needed();
}
#ifdef WIN32
if (v->fbi.cmdfifo[0].depth >= v->fbi.cmdfifo[0].depth_needed) {
SetEvent(v->fbi.cmdfifo[0].event);
}
#endif
}
Bit32u cmdfifo_r(void)