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
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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
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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 * Declarations of functions related to marshalling GL calls from a client
27 * thread to a server thread.
33 #include "main/glthread.h"
34 #include "main/context.h"
35 #include "main/macros.h"
36 #include "marshal_generated.h"
38 struct marshal_cmd_base
41 * Type of command. See enum marshal_dispatch_cmd_id.
46 * Size of command, in multiples of 4 bytes, including cmd_base.
51 typedef void (*_mesa_unmarshal_func
)(struct gl_context
*ctx
, const void *cmd
);
52 extern const _mesa_unmarshal_func _mesa_unmarshal_dispatch
[NUM_DISPATCH_CMD
];
55 _mesa_glthread_allocate_command(struct gl_context
*ctx
,
59 struct glthread_state
*glthread
= ctx
->GLThread
;
60 struct glthread_batch
*next
= &glthread
->batches
[glthread
->next
];
61 struct marshal_cmd_base
*cmd_base
;
62 const int aligned_size
= ALIGN(size
, 8);
64 if (unlikely(next
->used
+ size
> MARSHAL_MAX_CMD_SIZE
)) {
65 _mesa_glthread_flush_batch(ctx
);
66 next
= &glthread
->batches
[glthread
->next
];
69 cmd_base
= (struct marshal_cmd_base
*)&next
->buffer
[next
->used
];
70 next
->used
+= aligned_size
;
71 cmd_base
->cmd_id
= cmd_id
;
72 cmd_base
->cmd_size
= aligned_size
;
77 * Instead of conditionally handling marshaling previously-bound user vertex
78 * array data in draw calls (deprecated and removed in GL core), we just
79 * disable threading at the point where the user sets a user vertex array.
82 _mesa_glthread_is_non_vbo_vertex_attrib_pointer(const struct gl_context
*ctx
)
84 struct glthread_state
*glthread
= ctx
->GLThread
;
86 return ctx
->API
!= API_OPENGL_CORE
&& !glthread
->vertex_array_is_vbo
;
90 * Instead of conditionally handling marshaling immediate index data in draw
91 * calls (deprecated and removed in GL core), we just disable threading.
94 _mesa_glthread_is_non_vbo_draw_elements(const struct gl_context
*ctx
)
96 struct glthread_state
*glthread
= ctx
->GLThread
;
98 return ctx
->API
!= API_OPENGL_CORE
&& !glthread
->element_array_is_vbo
;
101 #define DEBUG_MARSHAL_PRINT_CALLS 0
104 * This is printed when we have fallen back to a sync. This can happen when
105 * MARSHAL_MAX_CMD_SIZE is exceeded.
108 debug_print_sync_fallback(const char *func
)
110 #if DEBUG_MARSHAL_PRINT_CALLS
111 printf("fallback to sync: %s\n", func
);
117 debug_print_sync(const char *func
)
119 #if DEBUG_MARSHAL_PRINT_CALLS
120 printf("sync: %s\n", func
);
125 debug_print_marshal(const char *func
)
127 #if DEBUG_MARSHAL_PRINT_CALLS
128 printf("marshal: %s\n", func
);
132 struct _glapi_table
*
133 _mesa_create_marshal_table(const struct gl_context
*ctx
);
137 * Checks whether we're on a compat context for code-generated
138 * glBindVertexArray().
140 * In order to decide whether a draw call uses only VBOs for vertex and index
141 * buffers, we track the current vertex and index buffer bindings by
142 * glBindBuffer(). However, the index buffer binding is stored in the vertex
143 * array as opposed to the context. If we were to accurately track whether
144 * the index buffer was a user pointer ot not, we'd have to track it per
145 * vertex array, which would mean synchronizing with the client thread and
146 * looking into the hash table to find the actual vertex array object. That's
147 * more tracking than we'd like to do in the main thread, if possible.
149 * Instead, just punt for now and disable threading on apps using vertex
150 * arrays and compat contexts. Apps using vertex arrays can probably use a
154 _mesa_glthread_is_compat_bind_vertex_array(const struct gl_context
*ctx
)
156 return ctx
->API
!= API_OPENGL_CORE
;
159 struct marshal_cmd_Enable
;
160 struct marshal_cmd_ShaderSource
;
161 struct marshal_cmd_Flush
;
162 struct marshal_cmd_BindBuffer
;
163 struct marshal_cmd_BufferData
;
164 struct marshal_cmd_BufferSubData
;
165 struct marshal_cmd_NamedBufferData
;
166 struct marshal_cmd_NamedBufferSubData
;
167 struct marshal_cmd_ClearBuffer
;
168 #define marshal_cmd_ClearBufferfv marshal_cmd_ClearBuffer
169 #define marshal_cmd_ClearBufferiv marshal_cmd_ClearBuffer
170 #define marshal_cmd_ClearBufferuiv marshal_cmd_ClearBuffer
171 #define marshal_cmd_ClearBufferfi marshal_cmd_ClearBuffer
174 _mesa_unmarshal_Enable(struct gl_context
*ctx
,
175 const struct marshal_cmd_Enable
*cmd
);
178 _mesa_marshal_Enable(GLenum cap
);
181 _mesa_marshal_ShaderSource(GLuint shader
, GLsizei count
,
182 const GLchar
* const *string
, const GLint
*length
);
185 _mesa_unmarshal_ShaderSource(struct gl_context
*ctx
,
186 const struct marshal_cmd_ShaderSource
*cmd
);
189 _mesa_marshal_Flush(void);
192 _mesa_unmarshal_Flush(struct gl_context
*ctx
,
193 const struct marshal_cmd_Flush
*cmd
);
196 _mesa_marshal_BindBuffer(GLenum target
, GLuint buffer
);
199 _mesa_unmarshal_BindBuffer(struct gl_context
*ctx
,
200 const struct marshal_cmd_BindBuffer
*cmd
);
203 _mesa_unmarshal_BufferData(struct gl_context
*ctx
,
204 const struct marshal_cmd_BufferData
*cmd
);
207 _mesa_marshal_BufferData(GLenum target
, GLsizeiptr size
, const GLvoid
* data
,
211 _mesa_unmarshal_BufferSubData(struct gl_context
*ctx
,
212 const struct marshal_cmd_BufferSubData
*cmd
);
215 _mesa_marshal_BufferSubData(GLenum target
, GLintptr offset
, GLsizeiptr size
,
216 const GLvoid
* data
);
219 _mesa_unmarshal_NamedBufferData(struct gl_context
*ctx
,
220 const struct marshal_cmd_NamedBufferData
*cmd
);
223 _mesa_marshal_NamedBufferData(GLuint buffer
, GLsizeiptr size
,
224 const GLvoid
* data
, GLenum usage
);
227 _mesa_unmarshal_NamedBufferSubData(struct gl_context
*ctx
,
228 const struct marshal_cmd_NamedBufferSubData
*cmd
);
231 _mesa_marshal_NamedBufferSubData(GLuint buffer
, GLintptr offset
, GLsizeiptr size
,
232 const GLvoid
* data
);
235 _mesa_unmarshal_ClearBufferfv(struct gl_context
*ctx
,
236 const struct marshal_cmd_ClearBuffer
*cmd
);
239 _mesa_marshal_ClearBufferfv(GLenum buffer
, GLint drawbuffer
,
240 const GLfloat
*value
);
243 _mesa_unmarshal_ClearBufferiv(struct gl_context
*ctx
,
244 const struct marshal_cmd_ClearBuffer
*cmd
);
247 _mesa_marshal_ClearBufferiv(GLenum buffer
, GLint drawbuffer
,
251 _mesa_unmarshal_ClearBufferuiv(struct gl_context
*ctx
,
252 const struct marshal_cmd_ClearBuffer
*cmd
);
255 _mesa_marshal_ClearBufferuiv(GLenum buffer
, GLint drawbuffer
,
256 const GLuint
*value
);
259 _mesa_unmarshal_ClearBufferfi(struct gl_context
*ctx
,
260 const struct marshal_cmd_ClearBuffer
*cmd
);
263 _mesa_marshal_ClearBufferfi(GLenum buffer
, GLint drawbuffer
,
264 const GLfloat depth
, const GLint stencil
);
266 #endif /* MARSHAL_H */