1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
34 #include "main/imports.h"
35 #include "program/prog_parameter.h"
36 #include "program/prog_print.h"
38 #include "pipe/p_context.h"
39 #include "pipe/p_defines.h"
40 #include "util/u_inlines.h"
41 #include "util/u_upload_mgr.h"
42 #include "cso_cache/cso_context.h"
45 #include "st_context.h"
47 #include "st_atom_constbuf.h"
48 #include "st_program.h"
49 #include "st_cb_bufferobjects.h"
52 * Pass the given program parameters to the graphics pipe as a
54 * \param shader_type either PIPE_SHADER_VERTEX or PIPE_SHADER_FRAGMENT
56 void st_upload_constants( struct st_context
*st
,
57 struct gl_program_parameter_list
*params
,
60 assert(shader_type
== PIPE_SHADER_VERTEX
||
61 shader_type
== PIPE_SHADER_FRAGMENT
||
62 shader_type
== PIPE_SHADER_GEOMETRY
||
63 shader_type
== PIPE_SHADER_TESS_CTRL
||
64 shader_type
== PIPE_SHADER_TESS_EVAL
);
66 /* update constants */
67 if (params
&& params
->NumParameters
) {
68 struct pipe_constant_buffer cb
;
69 const uint paramBytes
= params
->NumParameters
* sizeof(GLfloat
) * 4;
71 /* Update the constants which come from fixed-function state, such as
72 * transformation matrices, fog factors, etc. The rest of the values in
73 * the parameters list are explicitly set by the user with glUniform,
74 * glProgramParameter(), etc.
76 _mesa_load_state_parameters(st
->ctx
, params
);
78 /* We always need to get a new buffer, to keep the drivers simple and
79 * avoid gratuitous rendering synchronization.
80 * Let's use a user buffer to avoid an unnecessary copy.
82 if (st
->constbuf_uploader
) {
84 cb
.user_buffer
= NULL
;
85 u_upload_data(st
->constbuf_uploader
, 0, paramBytes
,
86 params
->ParameterValues
, &cb
.buffer_offset
, &cb
.buffer
);
87 u_upload_unmap(st
->constbuf_uploader
);
90 cb
.user_buffer
= params
->ParameterValues
;
93 cb
.buffer_size
= paramBytes
;
95 if (ST_DEBUG
& DEBUG_CONSTANTS
) {
96 debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n",
97 __func__
, shader_type
, params
->NumParameters
,
99 _mesa_print_parameter_list(params
);
102 cso_set_constant_buffer(st
->cso_context
, shader_type
, 0, &cb
);
103 pipe_resource_reference(&cb
.buffer
, NULL
);
105 st
->state
.constants
[shader_type
].ptr
= params
->ParameterValues
;
106 st
->state
.constants
[shader_type
].size
= paramBytes
;
108 else if (st
->state
.constants
[shader_type
].ptr
) {
110 st
->state
.constants
[shader_type
].ptr
= NULL
;
111 st
->state
.constants
[shader_type
].size
= 0;
112 cso_set_constant_buffer(st
->cso_context
, shader_type
, 0, NULL
);
120 static void update_vs_constants(struct st_context
*st
)
122 struct st_vertex_program
*vp
= st
->vp
;
123 struct gl_program_parameter_list
*params
= vp
->Base
.Base
.Parameters
;
125 st_upload_constants( st
, params
, PIPE_SHADER_VERTEX
);
129 const struct st_tracked_state st_update_vs_constants
= {
130 "st_update_vs_constants", /* name */
132 _NEW_PROGRAM_CONSTANTS
, /* mesa */
133 ST_NEW_VERTEX_PROGRAM
, /* st */
135 update_vs_constants
/* update */
143 static void update_fs_constants(struct st_context
*st
)
145 struct st_fragment_program
*fp
= st
->fp
;
146 struct gl_program_parameter_list
*params
= fp
->Base
.Base
.Parameters
;
148 st_upload_constants( st
, params
, PIPE_SHADER_FRAGMENT
);
152 const struct st_tracked_state st_update_fs_constants
= {
153 "st_update_fs_constants", /* name */
155 _NEW_PROGRAM_CONSTANTS
, /* mesa */
156 ST_NEW_FRAGMENT_PROGRAM
, /* st */
158 update_fs_constants
/* update */
163 static void update_gs_constants(struct st_context
*st
)
165 struct st_geometry_program
*gp
= st
->gp
;
166 struct gl_program_parameter_list
*params
;
169 params
= gp
->Base
.Base
.Parameters
;
170 st_upload_constants( st
, params
, PIPE_SHADER_GEOMETRY
);
174 const struct st_tracked_state st_update_gs_constants
= {
175 "st_update_gs_constants", /* name */
177 _NEW_PROGRAM_CONSTANTS
, /* mesa */
178 ST_NEW_GEOMETRY_PROGRAM
, /* st */
180 update_gs_constants
/* update */
183 /* Tessellation control shader:
185 static void update_tcs_constants(struct st_context
*st
)
187 struct st_tessctrl_program
*tcp
= st
->tcp
;
188 struct gl_program_parameter_list
*params
;
191 params
= tcp
->Base
.Base
.Parameters
;
192 st_upload_constants( st
, params
, PIPE_SHADER_TESS_CTRL
);
196 const struct st_tracked_state st_update_tcs_constants
= {
197 "st_update_tcs_constants", /* name */
199 _NEW_PROGRAM_CONSTANTS
, /* mesa */
200 ST_NEW_TESSCTRL_PROGRAM
, /* st */
202 update_tcs_constants
/* update */
205 /* Tessellation evaluation shader:
207 static void update_tes_constants(struct st_context
*st
)
209 struct st_tesseval_program
*tep
= st
->tep
;
210 struct gl_program_parameter_list
*params
;
213 params
= tep
->Base
.Base
.Parameters
;
214 st_upload_constants( st
, params
, PIPE_SHADER_TESS_EVAL
);
218 const struct st_tracked_state st_update_tes_constants
= {
219 "st_update_tes_constants", /* name */
221 _NEW_PROGRAM_CONSTANTS
, /* mesa */
222 ST_NEW_TESSEVAL_PROGRAM
, /* st */
224 update_tes_constants
/* update */
227 static void st_bind_ubos(struct st_context
*st
,
228 struct gl_shader
*shader
,
229 unsigned shader_type
)
232 struct pipe_constant_buffer cb
= { 0 };
237 for (i
= 0; i
< shader
->NumUniformBlocks
; i
++) {
238 struct gl_uniform_buffer_binding
*binding
;
239 struct st_buffer_object
*st_obj
;
241 binding
= &st
->ctx
->UniformBufferBindings
[shader
->UniformBlocks
[i
].Binding
];
242 st_obj
= st_buffer_object(binding
->BufferObject
);
244 cb
.buffer
= st_obj
->buffer
;
247 cb
.buffer_offset
= binding
->Offset
;
248 cb
.buffer_size
= cb
.buffer
->width0
- binding
->Offset
;
250 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
251 * Take the minimum just to be sure.
253 if (!binding
->AutomaticSize
)
254 cb
.buffer_size
= MIN2(cb
.buffer_size
, (unsigned) binding
->Size
);
257 cb
.buffer_offset
= 0;
261 cso_set_constant_buffer(st
->cso_context
, shader_type
, 1 + i
, &cb
);
265 static void bind_vs_ubos(struct st_context
*st
)
267 struct gl_shader_program
*prog
=
268 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_VERTEX
];
273 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_VERTEX
], PIPE_SHADER_VERTEX
);
276 const struct st_tracked_state st_bind_vs_ubos
= {
280 ST_NEW_VERTEX_PROGRAM
| ST_NEW_UNIFORM_BUFFER
,
285 static void bind_fs_ubos(struct st_context
*st
)
287 struct gl_shader_program
*prog
=
288 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_FRAGMENT
];
293 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_FRAGMENT
], PIPE_SHADER_FRAGMENT
);
296 const struct st_tracked_state st_bind_fs_ubos
= {
300 ST_NEW_FRAGMENT_PROGRAM
| ST_NEW_UNIFORM_BUFFER
,
305 static void bind_gs_ubos(struct st_context
*st
)
307 struct gl_shader_program
*prog
=
308 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_GEOMETRY
];
313 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_GEOMETRY
], PIPE_SHADER_GEOMETRY
);
316 const struct st_tracked_state st_bind_gs_ubos
= {
320 ST_NEW_GEOMETRY_PROGRAM
| ST_NEW_UNIFORM_BUFFER
,
325 static void bind_tcs_ubos(struct st_context
*st
)
327 struct gl_shader_program
*prog
=
328 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_TESS_CTRL
];
333 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
], PIPE_SHADER_TESS_CTRL
);
336 const struct st_tracked_state st_bind_tcs_ubos
= {
340 ST_NEW_TESSCTRL_PROGRAM
| ST_NEW_UNIFORM_BUFFER
,
345 static void bind_tes_ubos(struct st_context
*st
)
347 struct gl_shader_program
*prog
=
348 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_TESS_EVAL
];
353 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
], PIPE_SHADER_TESS_EVAL
);
356 const struct st_tracked_state st_bind_tes_ubos
= {
360 ST_NEW_TESSEVAL_PROGRAM
| ST_NEW_UNIFORM_BUFFER
,