1 /*
2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
5
6 Permission is hereby granted, free of charge, to any person obtaining
7 a 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, sublicense, 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
16 portions of the Software.
17
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25
26 **********************************************************************/
27 /*
28 * Authors:
29 * Keith Whitwell <keith@tungstengraphics.com>
30 */
31
32 #include "main/mtypes.h"
33 #include "program/prog_parameter.h"
34
35 #include "brw_context.h"
36 #include "brw_state.h"
37
38 /* Creates a new VS constant buffer reflecting the current VS program's
39 * constants, if needed by the VS program.
40 *
41 * Otherwise, constants go through the CURBEs using the brw_constant_buffer
42 * state atom.
43 */
44 static void
brw_upload_vs_pull_constants(struct brw_context * brw)45 brw_upload_vs_pull_constants(struct brw_context *brw)
46 {
47 struct gl_context *ctx = &brw->intel.ctx;
48 struct intel_context *intel = &brw->intel;
49 /* BRW_NEW_VERTEX_PROGRAM */
50 struct brw_vertex_program *vp =
51 (struct brw_vertex_program *) brw->vertex_program;
52 const struct gl_program_parameter_list *params = vp->program.Base.Parameters;
53 int i;
54
55 if (vp->program.IsNVProgram)
56 _mesa_load_tracked_matrices(ctx);
57
58 /* Updates the ParamaterValues[i] pointers for all parameters of the
59 * basic type of PROGRAM_STATE_VAR.
60 */
61 _mesa_load_state_parameters(&brw->intel.ctx, vp->program.Base.Parameters);
62
63 /* CACHE_NEW_VS_PROG */
64 if (!brw->vs.prog_data->nr_pull_params) {
65 if (brw->vs.const_bo) {
66 drm_intel_bo_unreference(brw->vs.const_bo);
67 brw->vs.const_bo = NULL;
68 brw->vs.surf_offset[SURF_INDEX_VERT_CONST_BUFFER] = 0;
69 brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
70 }
71 return;
72 }
73
74 /* _NEW_PROGRAM_CONSTANTS */
75 drm_intel_bo_unreference(brw->vs.const_bo);
76 brw->vs.const_bo = drm_intel_bo_alloc(intel->bufmgr, "vp_const_buffer",
77 brw->vs.prog_data->nr_pull_params * 4,
78 64);
79
80 drm_intel_gem_bo_map_gtt(brw->vs.const_bo);
81 for (i = 0; i < brw->vs.prog_data->nr_pull_params; i++) {
82 memcpy(brw->vs.const_bo->virtual + i * 4,
83 brw->vs.prog_data->pull_param[i],
84 4);
85 }
86
87 if (0) {
88 for (i = 0; i < params->NumParameters; i++) {
89 float *row = (float *)brw->vs.const_bo->virtual + i * 4;
90 printf("vs const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
91 i, row[0], row[1], row[2], row[3]);
92 }
93 }
94
95 drm_intel_gem_bo_unmap_gtt(brw->vs.const_bo);
96
97 const int surf = SURF_INDEX_VERT_CONST_BUFFER;
98 intel->vtbl.create_constant_surface(brw, brw->vs.const_bo, 0,
99 params->NumParameters,
100 &brw->vs.surf_offset[surf]);
101
102 brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
103 }
104
105 const struct brw_tracked_state brw_vs_pull_constants = {
106 .dirty = {
107 .mesa = (_NEW_PROGRAM_CONSTANTS),
108 .brw = (BRW_NEW_BATCH | BRW_NEW_VERTEX_PROGRAM),
109 .cache = CACHE_NEW_VS_PROG,
110 },
111 .emit = brw_upload_vs_pull_constants,
112 };
113
114 static void
brw_upload_vs_ubo_surfaces(struct brw_context * brw)115 brw_upload_vs_ubo_surfaces(struct brw_context *brw)
116 {
117 struct gl_context *ctx = &brw->intel.ctx;
118 /* _NEW_PROGRAM */
119 struct gl_shader_program *prog = ctx->Shader.CurrentVertexProgram;
120
121 if (!prog)
122 return;
123
124 brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_VERTEX],
125 &brw->vs.surf_offset[SURF_INDEX_VS_UBO(0)]);
126 }
127
128 const struct brw_tracked_state brw_vs_ubo_surfaces = {
129 .dirty = {
130 .mesa = (_NEW_PROGRAM |
131 _NEW_BUFFER_OBJECT),
132 .brw = BRW_NEW_BATCH,
133 .cache = 0,
134 },
135 .emit = brw_upload_vs_ubo_surfaces,
136 };
137
138 /**
139 * Constructs the binding table for the WM surface state, which maps unit
140 * numbers to surface state objects.
141 */
142 static void
brw_vs_upload_binding_table(struct brw_context * brw)143 brw_vs_upload_binding_table(struct brw_context *brw)
144 {
145 uint32_t *bind;
146 int i;
147
148 /* CACHE_NEW_VS_PROG: Skip making a binding table if we don't use textures or
149 * pull constants.
150 */
151 if (brw->vs.prog_data->num_surfaces == 0) {
152 if (brw->vs.bind_bo_offset != 0) {
153 brw->state.dirty.brw |= BRW_NEW_VS_BINDING_TABLE;
154 brw->vs.bind_bo_offset = 0;
155 }
156 return;
157 }
158
159 /* Might want to calculate nr_surfaces first, to avoid taking up so much
160 * space for the binding table.
161 */
162 bind = brw_state_batch(brw, AUB_TRACE_BINDING_TABLE,
163 sizeof(uint32_t) * BRW_MAX_VS_SURFACES,
164 32, &brw->vs.bind_bo_offset);
165
166 /* BRW_NEW_SURFACES and BRW_NEW_VS_CONSTBUF */
167 for (i = 0; i < BRW_MAX_VS_SURFACES; i++) {
168 bind[i] = brw->vs.surf_offset[i];
169 }
170
171 brw->state.dirty.brw |= BRW_NEW_VS_BINDING_TABLE;
172 }
173
174 const struct brw_tracked_state brw_vs_binding_table = {
175 .dirty = {
176 .mesa = 0,
177 .brw = (BRW_NEW_BATCH |
178 BRW_NEW_VS_CONSTBUF |
179 BRW_NEW_SURFACES),
180 .cache = CACHE_NEW_VS_PROG
181 },
182 .emit = brw_vs_upload_binding_table,
183 };
184