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"
37 #include "main/shaderapi.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
,
58 gl_shader_stage stage
)
60 enum pipe_shader_type shader_type
= st_shader_stage_to_ptarget(stage
);
62 assert(shader_type
== PIPE_SHADER_VERTEX
||
63 shader_type
== PIPE_SHADER_FRAGMENT
||
64 shader_type
== PIPE_SHADER_GEOMETRY
||
65 shader_type
== PIPE_SHADER_TESS_CTRL
||
66 shader_type
== PIPE_SHADER_TESS_EVAL
||
67 shader_type
== PIPE_SHADER_COMPUTE
);
69 /* update the ATI constants before rendering */
70 if (shader_type
== PIPE_SHADER_FRAGMENT
&& st
->fp
->ati_fs
) {
71 struct ati_fragment_shader
*ati_fs
= st
->fp
->ati_fs
;
74 for (c
= 0; c
< MAX_NUM_FRAGMENT_CONSTANTS_ATI
; c
++) {
75 if (ati_fs
->LocalConstDef
& (1 << c
))
76 memcpy(params
->ParameterValues
[c
],
77 ati_fs
->Constants
[c
], sizeof(GLfloat
) * 4);
79 memcpy(params
->ParameterValues
[c
],
80 st
->ctx
->ATIFragmentShader
.GlobalConstants
[c
], sizeof(GLfloat
) * 4);
84 /* update constants */
85 if (params
&& params
->NumParameters
) {
86 struct pipe_constant_buffer cb
;
87 const uint paramBytes
= params
->NumParameters
* sizeof(GLfloat
) * 4;
89 /* Update the constants which come from fixed-function state, such as
90 * transformation matrices, fog factors, etc. The rest of the values in
91 * the parameters list are explicitly set by the user with glUniform,
92 * glProgramParameter(), etc.
94 if (params
->StateFlags
)
95 _mesa_load_state_parameters(st
->ctx
, params
);
97 _mesa_shader_write_subroutine_indices(st
->ctx
, stage
);
99 /* We always need to get a new buffer, to keep the drivers simple and
100 * avoid gratuitous rendering synchronization.
101 * Let's use a user buffer to avoid an unnecessary copy.
103 if (st
->constbuf_uploader
) {
105 cb
.user_buffer
= NULL
;
106 u_upload_data(st
->constbuf_uploader
, 0, paramBytes
,
107 st
->ctx
->Const
.UniformBufferOffsetAlignment
,
108 params
->ParameterValues
, &cb
.buffer_offset
, &cb
.buffer
);
109 u_upload_unmap(st
->constbuf_uploader
);
112 cb
.user_buffer
= params
->ParameterValues
;
113 cb
.buffer_offset
= 0;
115 cb
.buffer_size
= paramBytes
;
117 if (ST_DEBUG
& DEBUG_CONSTANTS
) {
118 debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n",
119 __func__
, shader_type
, params
->NumParameters
,
121 _mesa_print_parameter_list(params
);
124 cso_set_constant_buffer(st
->cso_context
, shader_type
, 0, &cb
);
125 pipe_resource_reference(&cb
.buffer
, NULL
);
127 st
->state
.constants
[shader_type
].ptr
= params
->ParameterValues
;
128 st
->state
.constants
[shader_type
].size
= paramBytes
;
130 else if (st
->state
.constants
[shader_type
].ptr
) {
132 st
->state
.constants
[shader_type
].ptr
= NULL
;
133 st
->state
.constants
[shader_type
].size
= 0;
134 cso_set_constant_buffer(st
->cso_context
, shader_type
, 0, NULL
);
142 static void update_vs_constants(struct st_context
*st
)
144 struct st_vertex_program
*vp
= st
->vp
;
145 struct gl_program_parameter_list
*params
= vp
->Base
.Base
.Parameters
;
147 st_upload_constants( st
, params
, MESA_SHADER_VERTEX
);
151 const struct st_tracked_state st_update_vs_constants
= {
152 update_vs_constants
/* update */
160 static void update_fs_constants(struct st_context
*st
)
162 struct st_fragment_program
*fp
= st
->fp
;
163 struct gl_program_parameter_list
*params
= fp
->Base
.Base
.Parameters
;
165 st_upload_constants( st
, params
, MESA_SHADER_FRAGMENT
);
169 const struct st_tracked_state st_update_fs_constants
= {
170 update_fs_constants
/* update */
175 static void update_gs_constants(struct st_context
*st
)
177 struct st_geometry_program
*gp
= st
->gp
;
178 struct gl_program_parameter_list
*params
;
181 params
= gp
->Base
.Base
.Parameters
;
182 st_upload_constants( st
, params
, MESA_SHADER_GEOMETRY
);
186 const struct st_tracked_state st_update_gs_constants
= {
187 update_gs_constants
/* update */
190 /* Tessellation control shader:
192 static void update_tcs_constants(struct st_context
*st
)
194 struct st_tessctrl_program
*tcp
= st
->tcp
;
195 struct gl_program_parameter_list
*params
;
198 params
= tcp
->Base
.Parameters
;
199 st_upload_constants( st
, params
, MESA_SHADER_TESS_CTRL
);
203 const struct st_tracked_state st_update_tcs_constants
= {
204 update_tcs_constants
/* update */
207 /* Tessellation evaluation shader:
209 static void update_tes_constants(struct st_context
*st
)
211 struct st_tesseval_program
*tep
= st
->tep
;
212 struct gl_program_parameter_list
*params
;
215 params
= tep
->Base
.Parameters
;
216 st_upload_constants( st
, params
, MESA_SHADER_TESS_EVAL
);
220 const struct st_tracked_state st_update_tes_constants
= {
221 update_tes_constants
/* update */
226 static void update_cs_constants(struct st_context
*st
)
228 struct st_compute_program
*cp
= st
->cp
;
229 struct gl_program_parameter_list
*params
;
232 params
= cp
->Base
.Base
.Parameters
;
233 st_upload_constants( st
, params
, MESA_SHADER_COMPUTE
);
237 const struct st_tracked_state st_update_cs_constants
= {
238 update_cs_constants
/* update */
241 static void st_bind_ubos(struct st_context
*st
,
242 struct gl_linked_shader
*shader
,
243 unsigned shader_type
)
246 struct pipe_constant_buffer cb
= { 0 };
251 for (i
= 0; i
< shader
->NumUniformBlocks
; i
++) {
252 struct gl_uniform_buffer_binding
*binding
;
253 struct st_buffer_object
*st_obj
;
255 binding
= &st
->ctx
->UniformBufferBindings
[shader
->UniformBlocks
[i
]->Binding
];
256 st_obj
= st_buffer_object(binding
->BufferObject
);
258 cb
.buffer
= st_obj
->buffer
;
261 cb
.buffer_offset
= binding
->Offset
;
262 cb
.buffer_size
= cb
.buffer
->width0
- binding
->Offset
;
264 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
265 * Take the minimum just to be sure.
267 if (!binding
->AutomaticSize
)
268 cb
.buffer_size
= MIN2(cb
.buffer_size
, (unsigned) binding
->Size
);
271 cb
.buffer_offset
= 0;
275 cso_set_constant_buffer(st
->cso_context
, shader_type
, 1 + i
, &cb
);
279 static void bind_vs_ubos(struct st_context
*st
)
281 struct gl_shader_program
*prog
=
282 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_VERTEX
];
287 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_VERTEX
], PIPE_SHADER_VERTEX
);
290 const struct st_tracked_state st_bind_vs_ubos
= {
294 static void bind_fs_ubos(struct st_context
*st
)
296 struct gl_shader_program
*prog
=
297 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_FRAGMENT
];
302 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_FRAGMENT
], PIPE_SHADER_FRAGMENT
);
305 const struct st_tracked_state st_bind_fs_ubos
= {
309 static void bind_gs_ubos(struct st_context
*st
)
311 struct gl_shader_program
*prog
=
312 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_GEOMETRY
];
317 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_GEOMETRY
], PIPE_SHADER_GEOMETRY
);
320 const struct st_tracked_state st_bind_gs_ubos
= {
324 static void bind_tcs_ubos(struct st_context
*st
)
326 struct gl_shader_program
*prog
=
327 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_TESS_CTRL
];
332 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
], PIPE_SHADER_TESS_CTRL
);
335 const struct st_tracked_state st_bind_tcs_ubos
= {
339 static void bind_tes_ubos(struct st_context
*st
)
341 struct gl_shader_program
*prog
=
342 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_TESS_EVAL
];
347 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
], PIPE_SHADER_TESS_EVAL
);
350 const struct st_tracked_state st_bind_tes_ubos
= {
354 static void bind_cs_ubos(struct st_context
*st
)
356 struct gl_shader_program
*prog
=
357 st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_COMPUTE
];
362 st_bind_ubos(st
, prog
->_LinkedShaders
[MESA_SHADER_COMPUTE
],
363 PIPE_SHADER_COMPUTE
);
366 const struct st_tracked_state st_bind_cs_ubos
= {