Some dumping improvements

- Add commandline commands to print dumper listings.
- Add option for lsnes-dumpavi to load shared objects.

manual.lyx

@@ -774,6 +774,14 @@ Set number of frames to dump.
 Run specified lua script (lsnes-dumpavi does not have initialization files).
 \end_layout
 
+\begin_layout Subsubsection
+--load-library=<library>
+\end_layout
+
+\begin_layout Standard
+Load the specified shared object / dynamic library / dynamic link library.
+\end_layout
+
 \begin_layout Section
 Startup file lsnes.rc
 \end_layout
@@ -1079,11 +1087,13 @@ INTERNAL-AVI-CSCD: Internal CSCD in .avi dumper.
 
 \begin_deeper
 \begin_layout Itemize
-Does not take mode.
+Mode: uncompressed/pcm: Uncompressed video, PCM audio.
+ Takes prefix.
 \end_layout
 
 \begin_layout Itemize
-Takes a prefix.
+Mode: cscd/pcm: CSCD video, PCM audio.
+ Takes prefix.
 \end_layout
 
 \end_deeper
@@ -1152,6 +1162,14 @@ end-dump <dumper>
 End dumping using <dumper>
 \end_layout
 
+\begin_layout Subsubsection
+show-dumpers [<dumper>]
+\end_layout
+
+\begin_layout Standard
+Show the list of dumpers or list of modes for <dumper>
+\end_layout
+
 \begin_layout Subsection
 Memory manipulation
 \end_layout

manual.txt

@@ -340,6 +340,11 @@ Set number of frames to dump. Mandatory.
 Run specified lua script (lsnes-dumpavi does not have 
 initialization files).
 
+4.4.7 --load-library=<library>
+
+Load the specified shared object / dynamic library / dynamic link 
+library.
+
 5 Startup file lsnes.rc
 
 Upon startup, lsnes (lsnes/SDL only) executes file lsnes.rc as 
@@ -498,9 +503,10 @@ The following dumpers are available:
 
 • INTERNAL-AVI-CSCD: Internal CSCD in .avi dumper.
 
-  – Does not take mode.
+  – Mode: uncompressed/pcm: Uncompressed video, PCM audio. Takes 
+    prefix.
 
-  – Takes a prefix.
+  – Mode: cscd/pcm: CSCD video, PCM audio. Takes prefix.
 
 • INTERNAL-JMD: Internal .jmd dumper.
 
@@ -532,6 +538,10 @@ The following dumpers are available:
 
 End dumping using <dumper>
 
+6.5.3 show-dumpers [<dumper>]
+
+Show the list of dumpers or list of modes for <dumper>
+
 6.6 Memory manipulation
 
 <address> may be decimal or hexadecimal (prefixed with '0x'). 

src/core/advdumper.cpp

@@ -46,6 +46,37 @@ namespace
 				throw std::runtime_error("Command syntax error");
 			d.end();
 		});
+
+	function_ptr_command<const std::string&> dumpersc("show-dumpers", "Show dumpers",
+		"Syntax: show-dumpers\nSyntax: show-dumpers <dumper>\nShow dumpers or dumper modes for <dumper>\n",
+		[](const std::string& x) throw(std::bad_alloc, std::runtime_error) {
+			auto a = adv_dumper::get_dumper_set();
+			if(x == "") {
+				for(auto i : a)
+					messages << i->id() << "\t" << i->name() << std::endl;
+			} else {
+				for(auto i : a) {
+					if(i->id() == x) {
+						//This dumper.
+						auto b = i->list_submodes();
+						if(b.empty()) {
+							messages << "No submodes for '" << x << "'" << std::endl;
+							return;
+						}
+						for(auto j : b) {
+							if(i->wants_prefix(j))
+								messages << "P " << x << "\t" << j << "\t"
+									<< i->modename(j) << std::endl;
+							else
+								messages << "F " << x << "\t" << j << "\t"
+									<< i->modename(j) << std::endl;
+						}
+						return;
+					}
+				}
+				messages << "No such dumper '" << x << "'" << std::endl;
+			}
+		});
 }
 
 const std::string& adv_dumper::id() throw()

src/util/lsnes-dumpavi.cpp

@@ -7,6 +7,7 @@
 #include "core/dispatch.hpp"
 #include "core/framerate.hpp"
 #include "core/keymapper.hpp"
+#include "core/loadlib.hpp"
 #include "lua/lua.hpp"
 #include "core/mainloop.hpp"
 #include "core/misc.hpp"
@@ -146,7 +147,13 @@ namespace
 						<< std::endl;
 					exit(1);
 				}
-			}
+			} else if(a.length() >= 12 && a.substr(0, 15) == "--load-library=")
+				try {
+					load_library(a.substr(15));
+				} catch(std::runtime_error& e) {
+					std::cerr << "Can't load '" << a.substr(15) << "': " << e.what() << std::endl;
+					exit(1);
+				}
 		}
 		if(dumper == "list") {
 			//Help on dumpers.