piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-29 09:09:52 -06:00
Code Issues Packages Projects Releases Wiki Activity

Video and DSP plugin management: Fixed Stop and Start again, it was necessary to call FreeLibrary() on Start instead of on Stop, I don't know why but that's how it works

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2139 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
2009-02-08 10:09:26 +00:00
parent 54798713a0
commit f610f7e197
8 changed files with 280 additions and 177 deletions
Download Patch File Download Diff File Expand all files Collapse all files

299
Source/Core/Core/Src/PluginManager.cpp
View File

@ -15,6 +15,48 @@
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
//////////////////////////////////////////////////////////////////////////////////////////
// File description
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
This file controls when plugins are loaded and unloaded from memory. Its functions scan for valid
plugins when Dolphin is booted, and open the debugging and config windows. The PluginManager is
created once when Dolphin starts and is closed when Dolphin is closed.
When plugins are freed and loaded:
In an attempt to avoid the crash that occurs when the use LoadLibrary() and FreeLibrary() often
(every tiem a game is stopped and started) these functions will only be used when
1. Dolphin is started
2. A plugin is changed
3. Dolphin is closed
it will not be used when we Start and Stop games. With these exceptions:
1. Video plugin: If FreeLibrary() is not called between Stop and Start it will fail for
several games on the next Start, but not for all games.
2. Sond plugin: If FreeLibrary() is not called between Stop and Start I got the "Tried to
"get pointer for unknown address ffffffff" message for all games I tried.
For some reason the time when the FreeLibrary() is placed produce different results. If it's placed
after ShutDown() I don't get a black screen when I start SSBM (PAL) again, if I have stopped the game
before the first 3D appears (on the start screen), if I show the start screen and then Stop and Start
I get the same error again (a black screen) (with the default OpenGL settings, copy EFB to texture, no
hack). I also get the "Tried to get pointer ..." error then to (if DSP HLE sound has been enabled, if
"Enable HLE Audio" has been disabled I don't get that error message). For this reason I have to place
FreeVideo() and FreeDSP() before it's initialized on the next Start instead, then it works.
If it was not for the crash I always got earlier after several (perhaps as many as twenty) Stop and Start
I would be indifferent about how often FreeLibrary() i used, but since it seems like it can fail
infrequently, at least for nJoy, I'd rather use FreeLibrary() more sparingly. However, I could not
reproduce any crash now after several Stop and Start so maybe it has gone away or I was lucky. In any case
if it works I'd rather be without FreeLibrary() between Start and Stop.
//////////////////////////////////////*/
//////////////////////////////////////////////////////////////////////////////////////////
// Include
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#include <string> // System
#include <vector>
@ -29,9 +71,14 @@
#include "StringUtil.h"
#include "ConsoleWindow.h"
// Create the plugin manager class
CPluginManager CPluginManager::m_Instance;
/////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////
// The Plugin Manager Class
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
CPluginManager::CPluginManager() :
m_params(SConfig::GetInstance().m_LocalCoreStartupParameter)
{
@ -40,34 +87,14 @@ CPluginManager::CPluginManager() :
m_PluginGlobals->config = (void *)&SConfig::GetInstance();
m_PluginGlobals->messageLogger = NULL;
// Set initial values to NULL, this is only done when Dolphin is started
m_video = NULL;
m_dsp = NULL;
for (int i = 0; i < MAXPADS; i++)
m_pad[i] = NULL;
for (int i = 0; i < MAXWIIMOTES; i++)
m_wiimote[i] = NULL;
for (int i = 0; i < MAXPADS; i++) m_pad[i] = NULL;
for (int i = 0; i < MAXWIIMOTES; i++) m_wiimote[i] = NULL;
}
/* Function:
FreeLibrary() Called from: In an attempt to avoid the crash that occurs when
the use LoadLibrary() and FreeLibrary() often (every game a game is stopped
and started) these functions will only be used when
1. Dolphin is started
2. A plugin is changed
3. Dolphin is closed
it will not be used when we Start and Stop games. With these exceptions:
1. Video plugin: If FreeLibrary() is not called between Stop and Start it will fail for
several games on the next Start, but not for all games.
2. Sond plugin: If FreeLibrary() is not called between Stop and Start I got the "Tried to
"get pointer for unknown address ffffffff" message for all games I tried.
If it was not for the crash I always got earlier after several (perhaps as many as twenty) Stop and Start
I would be indifferent about how often FreeLibrary() i used, but since it seems like it can fail
infrequently, at least for nJoy, I'd rather use FreeLibrary() more sparingly. However, I could not
reproduce any crash now after several Stop and Start so maybe it has gone away or I was lucky. In any case
if it works I'd rather be without FreeLibrary() between Start and Stop.
*/
// This will call FreeLibrary() for all plugins
CPluginManager::~CPluginManager()
{
Console::Print("Delete CPluginManager\n");
@ -90,32 +117,41 @@ CPluginManager::~CPluginManager()
delete m_video;
}
//////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////
// Init and Shutdown Plugins
// Point the m_pad[] and other variables to a certain plugin
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// Function: Point the m_pad[] and other variables to a certain plugin
bool CPluginManager::InitPlugins()
{
if (! GetDSP()) {
PanicAlert("Can't init DSP Plugin");
return false;
}
Console::Print("Before GetVideo\n");
if (! GetVideo()) {
PanicAlert("Can't init Video Plugin");
return false;
}
Console::Print("After GetVideo\n");
// Check if we get at least one pad or wiimote
bool pad = false;
bool wiimote = false;
// Init pad
for (int i = 0; i < MAXPADS; i++) {
if (! m_params.m_strPadPlugin[i].empty())
GetPad(i);
if (m_pad[i] != NULL)
pad = true;
for (int i = 0; i < MAXPADS; i++)
{
// Check that the plugin has a name
if (! m_params.m_strPadPlugin[i].empty()) GetPad(i);
// Check that GetPad succeeded
if (m_pad[i] != NULL) pad = true;
}
if (! pad) {
if (! pad)
{
PanicAlert("Can't init any PAD Plugins");
return false;
}
@ -138,68 +174,120 @@ bool CPluginManager::InitPlugins()
return true;
}
// FreeLibrary() after ShutDown() is disabled for some plugins. See the comment in the file description
// for an explanation about the current LoadLibrary() and FreeLibrary() behavior.
void CPluginManager::ShutdownPlugins()
{
for (int i = 0; i < MAXPADS; i++) {
if (m_pad[i] && OkayToInitPlugin(i)) {
m_pad[i]->Shutdown();
//delete m_pad[i];
}
//m_pad[i] = NULL;
}
for (int i = 0; i < MAXWIIMOTES; i++) {
for (int i = 0; i < MAXWIIMOTES; i++)
{
if (m_wiimote[i]) m_wiimote[i]->Shutdown();
//delete m_wiimote[i];
//m_wiimote[i] = NULL;
}
if (m_video)
{
m_video->Shutdown();
// This is needed for Stop and Start to work
delete m_video;
m_video = NULL;
//delete m_video;
//m_video = NULL;
}
if (m_dsp)
{
m_dsp->Shutdown();
// This is needed for Stop and Start to work
delete m_dsp;
m_dsp = NULL;
//delete m_dsp;
//m_dsp = NULL;
}
}
//////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// The PluginInfo class: Find Valid Plugins
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/* Function: This info is used in ScanForPlugins() to check for valid plugins and and in LoadPlugin() to
check that the filename we want to use is a good DLL. */
CPluginInfo::CPluginInfo(const char *_rFilename)
: m_Filename(_rFilename)
, m_Valid(false)
{
if (! File::Exists(_rFilename))
{
PanicAlert("Can't find plugin %s", _rFilename);
return;
}
// Disabled FreeLibrary() for these plugins. See comment above PluginManager::~CPluginManager()
// for an explanation about the current LoadLibrary() and FreeLibrary() behavior.
/*
for (int i = 0; i < MAXPADS; i++)
// Check if the functions that are common to all plugins are present
Common::CPlugin *plugin = new Common::CPlugin(_rFilename);
if (plugin->IsValid())
{
if (m_pad[i] && OkayToInitPlugin(i)) {
Console::Print("Delete: %i\n", i);
delete m_pad[i];
if (plugin->GetInfo(m_PluginInfo))
m_Valid = true;
else
PanicAlert("Could not get info about plugin %s", _rFilename);
// We are now done with this plugin and will call FreeLibrary()
delete plugin;
}
}
///////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////
// Supporting functions
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/* Return the plugin info we saved when Dolphin was started. We don't even add a function to try load a
plugin name that was not found because in that case it must have been deleted while Dolphin was running.
If the user has done that he will instead get the "Can't open %s, it's missing" message. */
void CPluginManager::GetPluginInfo(CPluginInfo *&info, std::string Filename)
{
for (int i = 0; i < m_PluginInfos.size(); i++)
{
if (m_PluginInfos.at(i).GetFilename() == Filename)
{
info = &m_PluginInfos.at(i);
return;
}
m_pad[i] = NULL;
}
for (int i = 0; i < MAXWIIMOTES; i++)
{
delete m_wiimote[i];
m_wiimote[i] = NULL;
}*/
}
// Supporting functions
/* Called from: Get__() functions in this file only (not from anywhere else),
therefore we can leave all condition checks in the Get__() functions
below. */
void *CPluginManager::LoadPlugin(const char *_rFilename, int Number)
{
CPluginInfo info(_rFilename);
PLUGIN_TYPE type = info.GetPluginInfo().Type;
// Create a string of the filename
std::string Filename = _rFilename;
/* Avoid calling LoadLibrary() again and instead point to the plugin info that we found when
Dolphin was started */
CPluginInfo *info = NULL;
GetPluginInfo(info, Filename);
if (info == NULL)
{
PanicAlert("Can't open %s, it's missing", _rFilename);
return NULL;
}
PLUGIN_TYPE type = info->GetPluginInfo().Type;
Common::CPlugin *plugin = NULL;
if (! File::Exists(_rFilename))
return NULL;
// Check again that the file exists, the first check is when CPluginInfo info is created
if (! File::Exists(_rFilename)) return NULL;
switch (type) {
switch (type)
{
case PLUGIN_TYPE_VIDEO:
plugin = new Common::PluginVideo(_rFilename);
break;
@ -220,11 +308,14 @@ void *CPluginManager::LoadPlugin(const char *_rFilename, int Number)
PanicAlert("Trying to load unsupported type %d", type);
}
if (!plugin->IsValid()) {
PanicAlert("Can't open %s", _rFilename);
// Check that the plugin has both all the common and all the type specific functions
if (!plugin->IsValid())
{
PanicAlert("Can't open %s, it has a missing function", _rFilename);
return NULL;
}
// Call the DLL function SetGlobals
plugin->SetGlobals(m_PluginGlobals);
return plugin;
}
@ -253,18 +344,20 @@ PLUGIN_GLOBALS* CPluginManager::GetGlobals()
void CPluginManager::ScanForPlugins()
{
m_PluginInfos.clear();
// Get plugins dir
CFileSearch::XStringVector Directories;
Directories.push_back(std::string(PLUGINS_DIR));
CFileSearch::XStringVector Extensions;
Extensions.push_back("*" PLUGIN_SUFFIX);
// Get all DLL files in the plugins dir
CFileSearch FileSearch(Extensions, Directories);
const CFileSearch::XStringVector& rFilenames = FileSearch.GetFileNames();
if (rFilenames.size() > 0) {
for (size_t i = 0; i < rFilenames.size(); i++) {
if (rFilenames.size() > 0)
{
for (size_t i = 0; i < rFilenames.size(); i++)
{
std::string orig_name = rFilenames[i];
std::string Filename;
@ -274,16 +367,26 @@ void CPluginManager::ScanForPlugins()
}
CPluginInfo PluginInfo(orig_name.c_str());
if (PluginInfo.IsValid()) {
if (PluginInfo.IsValid())
{
// Save the PluginInfo
m_PluginInfos.push_back(PluginInfo);
}
}
}
}
/////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////
/* Create or return the already created plugin pointers. This will be called
often for the Pad and Wiimote from the SI_.cpp files. And often for the DSP
from the DSP files. */
from the DSP files.
We don't need to check if [Plugin]->IsValid() here because it will not be set by LoadPlugin()
if it's not valid.
*/
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Common::PluginPAD *CPluginManager::GetPad(int controller)
{
if (m_pad[controller] != NULL)
@ -325,14 +428,19 @@ Common::PluginDSP *CPluginManager::GetDSP()
Common::PluginVideo *CPluginManager::GetVideo()
{
if (m_video != NULL && m_video->IsValid()) {
/* We don't need to check if m_video->IsValid() here, because m_video will not be set by LoadPlugin()
if it's not valid */
if (m_video != NULL)
{
// Check if the video plugin has been changed
if (m_video->GetFilename() == m_params.m_strVideoPlugin)
return m_video;
// Then free the current video plugin,
else
FreeVideo();
}
// Else load a new plugin
// and load a new plugin
m_video = (Common::PluginVideo*)LoadPlugin(m_params.m_strVideoPlugin.c_str());
return m_video;
}
@ -344,7 +452,11 @@ void CPluginManager::FreeVideo()
delete m_video;
m_video = NULL;
}
void CPluginManager::FreeDSP()
{
delete m_dsp;
m_dsp = NULL;
}
void CPluginManager::FreePad(u32 pad)
{
if (pad < MAXPADS) {
@ -352,9 +464,12 @@ void CPluginManager::FreePad(u32 pad)
m_pad[pad] = NULL;
}
}
///////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
// Call DLL functions
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// Open config window. Input: _rFilename = Plugin filename , Type = Plugin type
void CPluginManager::OpenConfig(void* _Parent, const char *_rFilename, PLUGIN_TYPE Type)
@ -364,7 +479,8 @@ void CPluginManager::OpenConfig(void* _Parent, const char *_rFilename, PLUGIN_TY
return;
}
switch(Type) {
switch(Type)
{
case PLUGIN_TYPE_VIDEO:
GetVideo()->Config((HWND)_Parent);
break;
@ -385,41 +501,22 @@ void CPluginManager::OpenConfig(void* _Parent, const char *_rFilename, PLUGIN_TY
// Open debugging window. Type = Video or DSP. Show = Show or hide window.
void CPluginManager::OpenDebug(void* _Parent, const char *_rFilename, PLUGIN_TYPE Type, bool Show)
{
if (! File::Exists(_rFilename)) {
PanicAlert("Can't find plugin %s", _rFilename);
return;
}
switch(Type) {
case PLUGIN_TYPE_VIDEO:
GetVideo()->Debug((HWND)_Parent, Show);
break;
case PLUGIN_TYPE_DSP:
GetDSP()->Debug((HWND)_Parent, Show);
break;
default:
PanicAlert("Type %d debug not supported in plugin %s", Type, _rFilename);
}
}
// Get dll info
CPluginInfo::CPluginInfo(const char *_rFilename)
: m_Filename(_rFilename)
, m_Valid(false)
{
if (! File::Exists(_rFilename)) {
if (! File::Exists(_rFilename))
{
PanicAlert("Can't find plugin %s", _rFilename);
return;
}
Common::CPlugin *plugin = new Common::CPlugin(_rFilename);
if (plugin->IsValid()) {
if (plugin->GetInfo(m_PluginInfo))
m_Valid = true;
else
PanicAlert("Could not get info about plugin %s", _rFilename);
delete plugin;
switch(Type)
{
case PLUGIN_TYPE_VIDEO:
GetVideo()->Debug((HWND)_Parent, Show);
break;
case PLUGIN_TYPE_DSP:
GetDSP()->Debug((HWND)_Parent, Show);
break;
default:
PanicAlert("Type %d debug not supported in plugin %s", Type, _rFilename);
}
}
///////////////////////////////////////////