--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/ps3/SDL_ps3spe.c	Mon Sep 07 04:51:29 2009 +0000
@@ -0,0 +1,166 @@
+/*
+    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
+*/
+#include "SDL_config.h"
+
+#include "SDL_video.h"
+#include "SDL_ps3spe_c.h"
+
+#include "SDL_ps3video.h"
+#include "SDL_ps3render_c.h"
+
+/* Start the SPE thread */
+int SPE_Start(spu_data_t * spe_data)
+{
+  deprintf(2, "[PS3->SPU] Start SPE: %s\n", spe_data->program_name);
+  if (!(spe_data->booted))
+    SPE_Boot(spe_data);
+
+  /* To allow re-running of context, spe_ctx_entry has to be set before each call */
+  spe_data->entry = SPE_DEFAULT_ENTRY;
+  spe_data->error_code = 0;
+
+  /* Create SPE thread and run */
+  deprintf(2, "[PS3->SPU] Create Thread: %s\n", spe_data->program_name);
+  if (pthread_create
+      (&spe_data->thread, NULL, (void *)&SPE_RunContext, (void *)spe_data)) {
+    deprintf(2, "[PS3->SPU] Could not create pthread for spe: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Could not create pthread for spe");
+    return -1;
+  }
+
+  if (spe_data->keepalive)
+    SPE_WaitForMsg(spe_data, SPU_READY);
+}
+
+/* Stop the SPE thread */
+int SPE_Stop(spu_data_t * spe_data)
+{
+  deprintf(2, "[PS3->SPU] Stop SPE: %s\n", spe_data->program_name);
+  /* Wait for SPE thread to complete */
+  deprintf(2, "[PS3->SPU] Wait for SPE thread to complete: %s\n", spe_data->program_name);
+  if (pthread_join(spe_data->thread, NULL)) {
+    deprintf(2, "[PS3->SPU] Failed joining the thread: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed joining the thread");
+    return -1;
+  }
+
+  return 0;
+}
+
+/* Create SPE context and load program */
+int SPE_Boot(spu_data_t * spe_data)
+{
+  /* Create SPE context */
+  deprintf(2, "[PS3->SPU] Create SPE Context: %s\n", spe_data->program_name);
+  spe_data->ctx = spe_context_create(0, NULL);
+  if (spe_data->ctx == NULL) {
+    deprintf(2, "[PS3->SPU] Failed creating SPE context: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed creating SPE context");
+    return -1;
+  }
+
+  /* Load SPE object into SPE local store */
+  deprintf(2, "[PS3->SPU] Load Program into SPE: %s\n", spe_data->program_name);
+  if (spe_program_load(spe_data->ctx, &spe_data->program)) {
+    deprintf(2, "[PS3->SPU] Failed loading program into SPE context: %s\n", spe_data->program_name);
+    SDL_SetError
+        ("[PS3->SPU] Failed loading program into SPE context");
+    return -1;
+  }
+  spe_data->booted = 1;
+  deprintf(2, "[PS3->SPU] SPE boot successful\n");
+
+  return 0;
+}
+
+/* (Stop and) shutdown the SPE */
+int SPE_Shutdown(spu_data_t * spe_data)
+{
+  if (spe_data->keepalive && spe_data->booted) {
+    SPE_SendMsg(spe_data, SPU_EXIT);
+    SPE_Stop(spe_data);
+  }
+
+  /* Destroy SPE context */
+  deprintf(2, "[PS3->SPU] Destroy SPE context: %s\n", spe_data->program_name);
+  if (spe_context_destroy(spe_data->ctx)) {
+    deprintf(2, "[PS3->SPU] Failed destroying context: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed destroying context");
+    return -1;
+  }
+  deprintf(2, "[PS3->SPU] SPE shutdown successful: %s\n", spe_data->program_name);
+  return 0;
+}
+
+/* Send message to the SPE via mailboxe */
+int SPE_SendMsg(spu_data_t * spe_data, unsigned int msg)
+{
+  deprintf(2, "[PS3->SPU] Sending message %u to %s\n", msg, spe_data->program_name);
+  /* Send one message, block until message was sent */
+  unsigned int spe_in_mbox_msgs[1];
+  spe_in_mbox_msgs[0] = msg;
+  int in_mbox_write = spe_in_mbox_write(spe_data->ctx, spe_in_mbox_msgs, 1, SPE_MBOX_ALL_BLOCKING);
+
+  if (1 > in_mbox_write) {
+    deprintf(2, "[PS3->SPU] No message could be written to %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] No message could be written");
+    return -1;
+  }
+  return 0;
+}
+
+
+/* Read 1 message from SPE, block until at least 1 message was received */
+int SPE_WaitForMsg(spu_data_t * spe_data, unsigned int msg)
+{
+  deprintf(2, "[PS3->SPU] Waiting for message from %s\n", spe_data->program_name);
+  unsigned int out_messages[1];
+  while (!spe_out_mbox_status(spe_data->ctx));
+  int mbox_read = spe_out_mbox_read(spe_data->ctx, out_messages, 1);
+  deprintf(2, "[PS3->SPU] Got message from %s, message was %u\n", spe_data->program_name, out_messages[0]);
+  if (out_messages[0] == msg)
+    return 0;
+  else
+    return -1;
+}
+
+/* Re-runnable invocation of the spe_context_run call */
+void SPE_RunContext(void *thread_argp)
+{
+  /* argp is the pointer to argument to be passed to the SPE program */
+  spu_data_t *args = (spu_data_t *) thread_argp;
+  deprintf(3, "[PS3->SPU] void* argp=0x%x\n", (unsigned int)args->argp);
+
+  /* Run it.. */
+  deprintf(2, "[PS3->SPU] Run SPE program: %s\n", args->program_name);
+  if (spe_context_run
+      (args->ctx, &args->entry, 0, (void *)args->argp, NULL,
+       NULL) < 0) {
+    deprintf(2, "[PS3->SPU] Failed running SPE context: %s\n", args->program_name);
+    SDL_SetError("[PS3->SPU] Failed running SPE context: %s", args->program_name);
+    exit(1);
+  }
+
+  pthread_exit(NULL);
+}
+
+/* vi: set ts=4 sw=4 expandtab: */