1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28 /*
29 * Authors:
30 * Keith Whitwell <keithw@vmware.com>
31 * Brian Paul
32 */
33
34
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"
43
44 #include "st_debug.h"
45 #include "st_context.h"
46 #include "st_atom.h"
47 #include "st_atom_constbuf.h"
48 #include "st_program.h"
49 #include "st_cb_bufferobjects.h"
50
51 /**
52 * Pass the given program parameters to the graphics pipe as a
53 * constant buffer.
54 */
55 void
st_upload_constants(struct st_context * st,struct gl_program * prog)56 st_upload_constants(struct st_context *st, struct gl_program *prog)
57 {
58 gl_shader_stage stage = prog->info.stage;
59 struct gl_program_parameter_list *params = prog->Parameters;
60 enum pipe_shader_type shader_type = pipe_shader_type_from_mesa(stage);
61
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);
68
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;
72 unsigned c;
73
74 for (c = 0; c < MAX_NUM_FRAGMENT_CONSTANTS_ATI; c++) {
75 unsigned offset = params->ParameterValueOffset[c];
76 if (ati_fs->LocalConstDef & (1 << c))
77 memcpy(params->ParameterValues + offset,
78 ati_fs->Constants[c], sizeof(GLfloat) * 4);
79 else
80 memcpy(params->ParameterValues + offset,
81 st->ctx->ATIFragmentShader.GlobalConstants[c],
82 sizeof(GLfloat) * 4);
83 }
84 }
85
86 /* Make all bindless samplers/images bound texture/image units resident in
87 * the context.
88 */
89 st_make_bound_samplers_resident(st, prog);
90 st_make_bound_images_resident(st, prog);
91
92 /* update constants */
93 if (params && params->NumParameters) {
94 struct pipe_constant_buffer cb;
95 const uint paramBytes = params->NumParameterValues * sizeof(GLfloat);
96
97 /* Update the constants which come from fixed-function state, such as
98 * transformation matrices, fog factors, etc. The rest of the values in
99 * the parameters list are explicitly set by the user with glUniform,
100 * glProgramParameter(), etc.
101 */
102 if (params->StateFlags)
103 _mesa_load_state_parameters(st->ctx, params);
104
105 _mesa_shader_write_subroutine_indices(st->ctx, stage);
106
107 cb.buffer = NULL;
108 cb.user_buffer = params->ParameterValues;
109 cb.buffer_offset = 0;
110 cb.buffer_size = paramBytes;
111
112 if (ST_DEBUG & DEBUG_CONSTANTS) {
113 debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n",
114 __func__, shader_type, params->NumParameters,
115 params->StateFlags);
116 _mesa_print_parameter_list(params);
117 }
118
119 cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb);
120 pipe_resource_reference(&cb.buffer, NULL);
121
122 /* Set inlinable constants. */
123 unsigned num_inlinable_uniforms = prog->info.num_inlinable_uniforms;
124 if (num_inlinable_uniforms) {
125 struct pipe_context *pipe = st->pipe;
126 uint32_t values[MAX_INLINABLE_UNIFORMS];
127 gl_constant_value *constbuf = params->ParameterValues;
128
129 for (unsigned i = 0; i < num_inlinable_uniforms; i++)
130 values[i] = constbuf[prog->info.inlinable_uniform_dw_offsets[i]].u;
131
132 pipe->set_inlinable_constants(pipe, shader_type,
133 prog->info.num_inlinable_uniforms,
134 values);
135 }
136
137 st->state.constants[shader_type].ptr = params->ParameterValues;
138 st->state.constants[shader_type].size = paramBytes;
139 }
140 else if (st->state.constants[shader_type].ptr) {
141 /* Unbind. */
142 st->state.constants[shader_type].ptr = NULL;
143 st->state.constants[shader_type].size = 0;
144 cso_set_constant_buffer(st->cso_context, shader_type, 0, NULL);
145 }
146 }
147
148
149 /**
150 * Vertex shader:
151 */
152 void
st_update_vs_constants(struct st_context * st)153 st_update_vs_constants(struct st_context *st)
154 {
155 st_upload_constants(st, &st->vp->Base);
156 }
157
158 /**
159 * Fragment shader:
160 */
161 void
st_update_fs_constants(struct st_context * st)162 st_update_fs_constants(struct st_context *st)
163 {
164 st_upload_constants(st, &st->fp->Base);
165 }
166
167
168 /* Geometry shader:
169 */
170 void
st_update_gs_constants(struct st_context * st)171 st_update_gs_constants(struct st_context *st)
172 {
173 struct st_program *gp = st->gp;
174
175 if (gp)
176 st_upload_constants(st, &gp->Base);
177 }
178
179 /* Tessellation control shader:
180 */
181 void
st_update_tcs_constants(struct st_context * st)182 st_update_tcs_constants(struct st_context *st)
183 {
184 struct st_program *tcp = st->tcp;
185
186 if (tcp)
187 st_upload_constants(st, &tcp->Base);
188 }
189
190 /* Tessellation evaluation shader:
191 */
192 void
st_update_tes_constants(struct st_context * st)193 st_update_tes_constants(struct st_context *st)
194 {
195 struct st_program *tep = st->tep;
196
197 if (tep)
198 st_upload_constants(st, &tep->Base);
199 }
200
201 /* Compute shader:
202 */
203 void
st_update_cs_constants(struct st_context * st)204 st_update_cs_constants(struct st_context *st)
205 {
206 struct st_program *cp = st->cp;
207
208 if (cp)
209 st_upload_constants(st, &cp->Base);
210 }
211
212 static void
st_bind_ubos(struct st_context * st,struct gl_program * prog,enum pipe_shader_type shader_type)213 st_bind_ubos(struct st_context *st, struct gl_program *prog,
214 enum pipe_shader_type shader_type)
215 {
216 unsigned i;
217 struct pipe_constant_buffer cb = { 0 };
218
219 if (!prog)
220 return;
221
222 for (i = 0; i < prog->sh.NumUniformBlocks; i++) {
223 struct gl_buffer_binding *binding;
224 struct st_buffer_object *st_obj;
225
226 binding =
227 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding];
228 st_obj = st_buffer_object(binding->BufferObject);
229
230 cb.buffer = st_obj ? st_obj->buffer : NULL;
231
232 if (cb.buffer) {
233 cb.buffer_offset = binding->Offset;
234 cb.buffer_size = cb.buffer->width0 - binding->Offset;
235
236 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
237 * Take the minimum just to be sure.
238 */
239 if (!binding->AutomaticSize)
240 cb.buffer_size = MIN2(cb.buffer_size, (unsigned) binding->Size);
241 }
242 else {
243 cb.buffer_offset = 0;
244 cb.buffer_size = 0;
245 }
246
247 cso_set_constant_buffer(st->cso_context, shader_type, 1 + i, &cb);
248 }
249 }
250
251 void
st_bind_vs_ubos(struct st_context * st)252 st_bind_vs_ubos(struct st_context *st)
253 {
254 struct gl_program *prog =
255 st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
256
257 st_bind_ubos(st, prog, PIPE_SHADER_VERTEX);
258 }
259
260 void
st_bind_fs_ubos(struct st_context * st)261 st_bind_fs_ubos(struct st_context *st)
262 {
263 struct gl_program *prog =
264 st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
265
266 st_bind_ubos(st, prog, PIPE_SHADER_FRAGMENT);
267 }
268
269 void
st_bind_gs_ubos(struct st_context * st)270 st_bind_gs_ubos(struct st_context *st)
271 {
272 struct gl_program *prog =
273 st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
274
275 st_bind_ubos(st, prog, PIPE_SHADER_GEOMETRY);
276 }
277
278 void
st_bind_tcs_ubos(struct st_context * st)279 st_bind_tcs_ubos(struct st_context *st)
280 {
281 struct gl_program *prog =
282 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL];
283
284 st_bind_ubos(st, prog, PIPE_SHADER_TESS_CTRL);
285 }
286
287 void
st_bind_tes_ubos(struct st_context * st)288 st_bind_tes_ubos(struct st_context *st)
289 {
290 struct gl_program *prog =
291 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
292
293 st_bind_ubos(st, prog, PIPE_SHADER_TESS_EVAL);
294 }
295
296 void
st_bind_cs_ubos(struct st_context * st)297 st_bind_cs_ubos(struct st_context *st)
298 {
299 struct gl_program *prog =
300 st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE];
301
302 st_bind_ubos(st, prog, PIPE_SHADER_COMPUTE);
303 }
304