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comparison src/video/ps3/SDL_ps3spe.c @ 3257:94fb40a4a9a7

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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
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children f7b03b6838cb
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3256:83c87f2b2aab 3257:94fb40a4a9a7
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 #include "SDL_video.h"
25 #include "SDL_ps3spe_c.h"
26
27 #include "SDL_ps3video.h"
28 #include "SDL_ps3render_c.h"
29
30 /* Start the SPE thread */
31 int SPE_Start(spu_data_t * spe_data)
32 {
33 deprintf(2, "[PS3->SPU] Start SPE: %s\n", spe_data->program_name);
34 if (!(spe_data->booted))
35 SPE_Boot(spe_data);
36
37 /* To allow re-running of context, spe_ctx_entry has to be set before each call */
38 spe_data->entry = SPE_DEFAULT_ENTRY;
39 spe_data->error_code = 0;
40
41 /* Create SPE thread and run */
42 deprintf(2, "[PS3->SPU] Create Thread: %s\n", spe_data->program_name);
43 if (pthread_create
44 (&spe_data->thread, NULL, (void *)&SPE_RunContext, (void *)spe_data)) {
45 deprintf(2, "[PS3->SPU] Could not create pthread for spe: %s\n", spe_data->program_name);
46 SDL_SetError("[PS3->SPU] Could not create pthread for spe");
47 return -1;
48 }
49
50 if (spe_data->keepalive)
51 SPE_WaitForMsg(spe_data, SPU_READY);
52 }
53
54 /* Stop the SPE thread */
55 int SPE_Stop(spu_data_t * spe_data)
56 {
57 deprintf(2, "[PS3->SPU] Stop SPE: %s\n", spe_data->program_name);
58 /* Wait for SPE thread to complete */
59 deprintf(2, "[PS3->SPU] Wait for SPE thread to complete: %s\n", spe_data->program_name);
60 if (pthread_join(spe_data->thread, NULL)) {
61 deprintf(2, "[PS3->SPU] Failed joining the thread: %s\n", spe_data->program_name);
62 SDL_SetError("[PS3->SPU] Failed joining the thread");
63 return -1;
64 }
65
66 return 0;
67 }
68
69 /* Create SPE context and load program */
70 int SPE_Boot(spu_data_t * spe_data)
71 {
72 /* Create SPE context */
73 deprintf(2, "[PS3->SPU] Create SPE Context: %s\n", spe_data->program_name);
74 spe_data->ctx = spe_context_create(0, NULL);
75 if (spe_data->ctx == NULL) {
76 deprintf(2, "[PS3->SPU] Failed creating SPE context: %s\n", spe_data->program_name);
77 SDL_SetError("[PS3->SPU] Failed creating SPE context");
78 return -1;
79 }
80
81 /* Load SPE object into SPE local store */
82 deprintf(2, "[PS3->SPU] Load Program into SPE: %s\n", spe_data->program_name);
83 if (spe_program_load(spe_data->ctx, &spe_data->program)) {
84 deprintf(2, "[PS3->SPU] Failed loading program into SPE context: %s\n", spe_data->program_name);
85 SDL_SetError
86 ("[PS3->SPU] Failed loading program into SPE context");
87 return -1;
88 }
89 spe_data->booted = 1;
90 deprintf(2, "[PS3->SPU] SPE boot successful\n");
91
92 return 0;
93 }
94
95 /* (Stop and) shutdown the SPE */
96 int SPE_Shutdown(spu_data_t * spe_data)
97 {
98 if (spe_data->keepalive && spe_data->booted) {
99 SPE_SendMsg(spe_data, SPU_EXIT);
100 SPE_Stop(spe_data);
101 }
102
103 /* Destroy SPE context */
104 deprintf(2, "[PS3->SPU] Destroy SPE context: %s\n", spe_data->program_name);
105 if (spe_context_destroy(spe_data->ctx)) {
106 deprintf(2, "[PS3->SPU] Failed destroying context: %s\n", spe_data->program_name);
107 SDL_SetError("[PS3->SPU] Failed destroying context");
108 return -1;
109 }
110 deprintf(2, "[PS3->SPU] SPE shutdown successful: %s\n", spe_data->program_name);
111 return 0;
112 }
113
114 /* Send message to the SPE via mailboxe */
115 int SPE_SendMsg(spu_data_t * spe_data, unsigned int msg)
116 {
117 deprintf(2, "[PS3->SPU] Sending message %u to %s\n", msg, spe_data->program_name);
118 /* Send one message, block until message was sent */
119 unsigned int spe_in_mbox_msgs[1];
120 spe_in_mbox_msgs[0] = msg;
121 int in_mbox_write = spe_in_mbox_write(spe_data->ctx, spe_in_mbox_msgs, 1, SPE_MBOX_ALL_BLOCKING);
122
123 if (1 > in_mbox_write) {
124 deprintf(2, "[PS3->SPU] No message could be written to %s\n", spe_data->program_name);
125 SDL_SetError("[PS3->SPU] No message could be written");
126 return -1;
127 }
128 return 0;
129 }
130
131
132 /* Read 1 message from SPE, block until at least 1 message was received */
133 int SPE_WaitForMsg(spu_data_t * spe_data, unsigned int msg)
134 {
135 deprintf(2, "[PS3->SPU] Waiting for message from %s\n", spe_data->program_name);
136 unsigned int out_messages[1];
137 while (!spe_out_mbox_status(spe_data->ctx));
138 int mbox_read = spe_out_mbox_read(spe_data->ctx, out_messages, 1);
139 deprintf(2, "[PS3->SPU] Got message from %s, message was %u\n", spe_data->program_name, out_messages[0]);
140 if (out_messages[0] == msg)
141 return 0;
142 else
143 return -1;
144 }
145
146 /* Re-runnable invocation of the spe_context_run call */
147 void SPE_RunContext(void *thread_argp)
148 {
149 /* argp is the pointer to argument to be passed to the SPE program */
150 spu_data_t *args = (spu_data_t *) thread_argp;
151 deprintf(3, "[PS3->SPU] void* argp=0x%x\n", (unsigned int)args->argp);
152
153 /* Run it.. */
154 deprintf(2, "[PS3->SPU] Run SPE program: %s\n", args->program_name);
155 if (spe_context_run
156 (args->ctx, &args->entry, 0, (void *)args->argp, NULL,
157 NULL) < 0) {
158 deprintf(2, "[PS3->SPU] Failed running SPE context: %s\n", args->program_name);
159 SDL_SetError("[PS3->SPU] Failed running SPE context: %s", args->program_name);
160 exit(1);
161 }
162
163 pthread_exit(NULL);
164 }
165
166 /* vi: set ts=4 sw=4 expandtab: */