2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 * Custom functions for marshalling GL calls from the main thread to a worker
27 * thread when automatic code generation isn't appropriate.
32 #include "marshal_generated.h"
34 struct marshal_cmd_Flush
36 struct marshal_cmd_base cmd_base
;
41 _mesa_unmarshal_Flush(struct gl_context
*ctx
,
42 const struct marshal_cmd_Flush
*cmd
)
44 CALL_Flush(ctx
->CurrentServerDispatch
, ());
49 _mesa_marshal_Flush(void)
51 GET_CURRENT_CONTEXT(ctx
);
52 struct marshal_cmd_Flush
*cmd
=
53 _mesa_glthread_allocate_command(ctx
, DISPATCH_CMD_Flush
,
54 sizeof(struct marshal_cmd_Flush
));
56 _mesa_post_marshal_hook(ctx
);
58 /* Flush() needs to be handled specially. In addition to telling the
59 * background thread to flush, we need to ensure that our own buffer is
60 * submitted to the background thread so that it will complete in a finite
63 _mesa_glthread_flush_batch(ctx
);
67 struct marshal_cmd_ShaderSource
69 struct marshal_cmd_base cmd_base
;
72 /* Followed by GLint length[count], then the contents of all strings,
79 _mesa_unmarshal_ShaderSource(struct gl_context
*ctx
,
80 const struct marshal_cmd_ShaderSource
*cmd
)
82 const GLint
*cmd_length
= (const GLint
*) (cmd
+ 1);
83 const GLchar
*cmd_strings
= (const GLchar
*) (cmd_length
+ cmd
->count
);
84 /* TODO: how to deal with malloc failure? */
85 const GLchar
* *string
= malloc(cmd
->count
* sizeof(const GLchar
*));
88 for (i
= 0; i
< cmd
->count
; ++i
) {
89 string
[i
] = cmd_strings
;
90 cmd_strings
+= cmd_length
[i
];
92 CALL_ShaderSource(ctx
->CurrentServerDispatch
,
93 (cmd
->shader
, cmd
->count
, string
, cmd_length
));
99 measure_ShaderSource_strings(GLsizei count
, const GLchar
* const *string
,
100 const GLint
*length_in
, GLint
*length_out
)
103 size_t total_string_length
= 0;
105 for (i
= 0; i
< count
; ++i
) {
106 if (length_in
== NULL
|| length_in
[i
] < 0) {
108 length_out
[i
] = strlen(string
[i
]);
110 length_out
[i
] = length_in
[i
];
112 total_string_length
+= length_out
[i
];
114 return total_string_length
;
119 _mesa_marshal_ShaderSource(GLuint shader
, GLsizei count
,
120 const GLchar
* const *string
, const GLint
*length
)
122 /* TODO: how to report an error if count < 0? */
124 GET_CURRENT_CONTEXT(ctx
);
125 /* TODO: how to deal with malloc failure? */
126 const size_t fixed_cmd_size
= sizeof(struct marshal_cmd_ShaderSource
);
127 STATIC_ASSERT(sizeof(struct marshal_cmd_ShaderSource
) % sizeof(GLint
) == 0);
128 size_t length_size
= count
* sizeof(GLint
);
129 GLint
*length_tmp
= malloc(length_size
);
130 size_t total_string_length
=
131 measure_ShaderSource_strings(count
, string
, length
, length_tmp
);
132 size_t total_cmd_size
= fixed_cmd_size
+ length_size
+ total_string_length
;
134 if (total_cmd_size
<= MARSHAL_MAX_CMD_SIZE
) {
135 struct marshal_cmd_ShaderSource
*cmd
=
136 _mesa_glthread_allocate_command(ctx
, DISPATCH_CMD_ShaderSource
,
138 GLint
*cmd_length
= (GLint
*) (cmd
+ 1);
139 GLchar
*cmd_strings
= (GLchar
*) (cmd_length
+ count
);
142 cmd
->shader
= shader
;
144 memcpy(cmd_length
, length_tmp
, length_size
);
145 for (i
= 0; i
< count
; ++i
) {
146 memcpy(cmd_strings
, string
[i
], cmd_length
[i
]);
147 cmd_strings
+= cmd_length
[i
];
149 _mesa_post_marshal_hook(ctx
);
151 _mesa_glthread_finish(ctx
);
152 CALL_ShaderSource(ctx
->CurrentServerDispatch
,
153 (shader
, count
, string
, length_tmp
));