diff src/video/ps3/SDL_ps3spe_c.h @ 3257:94fb40a4a9a7

Merged Martin's code changes from Google Summer of Code 2009
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Sep 2009 04:51:29 +0000
parents
children f7b03b6838cb
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/ps3/SDL_ps3spe_c.h	Mon Sep 07 04:51:29 2009 +0000
@@ -0,0 +1,87 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2009 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+/* This SPE API basically provides 3 ways to run and control a program
+ * on the SPE:
+ * - Start and stop the program (keepalive=0).
+ *   SPE_Start() will implicitly boot up the program, create a thread and run
+ *   the context.
+ *   SPE_Stop() will join the (terminated) thread (may block) and return.
+ * - Boot the program and run it (keepalive=0).
+ *   SPE_Boot() will create a context and load the program and finally start
+ *   the context with SPE_Start().
+ *   SPE_Stop() will savely end the program.
+ * - Boot, Run and send messages to the program (keepalive=1).
+ *   Start the program by using one of the methods described above. When
+ *   received the READY-message the program is in its infinite loop waiting
+ *   for new messages.
+ *   Every time you run the program, send SPU_START and the address of the
+ *   according struct using SPE_SendMsg().
+ *   SPE_WaitForMsg() will than wait for SPU_FIN and is blocking.
+ *   SPE_Shutdown() sends SPU_EXIT and finally stops the program.
+ *
+ * Therefor the SPE program
+ * - either runs once and returns
+ * - or runs in an infinite loop and is controlled by messages.
+ */
+
+#include "SDL_config.h"
+
+#include "spulibs/spu_common.h"
+
+#include <libspe2.h>
+
+#ifndef _SDL_ps3spe_h
+#define _SDL_ps3spe_h
+
+/* SPU handling data */
+typedef struct spu_data {
+    /* Context to be executed */
+    spe_context_ptr_t ctx;
+    spe_program_handle_t program;
+    /* Thread running the context */
+    pthread_t thread;
+    /* For debugging */
+    char * program_name;
+    /* SPE_Start() or SPE_Boot() called */
+    unsigned int booted;
+    /* Runs the program in an infinite loop? */
+    unsigned int keepalive;
+    unsigned int entry;
+    /* Exit code of the program */
+    int error_code;
+    /* Arguments passed to the program */
+    void * argp;
+} spu_data_t;
+
+/* SPU specific API functions */
+int SPE_Start(spu_data_t * spe_data);
+int SPE_Stop(spu_data_t * spe_data);
+int SPE_Boot(spu_data_t * spe_data);
+int SPE_Shutdown(spu_data_t * spe_data);
+int SPE_SendMsg(spu_data_t * spe_data, unsigned int msg);
+int SPE_WaitForMsg(spu_data_t * spe_data, unsigned int msg);
+void SPE_RunContext(void *thread_argp);
+
+#endif /* _SDL_ps3spe_h */
+
+/* vi: set ts=4 sw=4 expandtab: */