1/*
2 * Copyright © 2013 Intel Corporation
3 *
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
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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:
10 *
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
13 * Software.
14 *
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
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#include "main/mtypes.h"
25#include "program/prog_parameter.h"
26#include "main/shaderapi.h"
27
28#include "brw_context.h"
29#include "brw_state.h"
30
31
32/* Creates a new TES constant buffer reflecting the current TES program's
33 * constants, if needed by the TES program.
34 *
35 * Otherwise, constants go through the CURBEs using the brw_constant_buffer
36 * state atom.
37 */
38static void
39brw_upload_tes_pull_constants(struct brw_context *brw)
40{
41   struct brw_stage_state *stage_state = &brw->tes.base;
42
43   /* BRW_NEW_TESS_PROGRAMS */
44   struct brw_program *dp = (struct brw_program *) brw->tess_eval_program;
45
46   if (!dp)
47      return;
48
49   /* BRW_NEW_TES_PROG_DATA */
50   const struct brw_stage_prog_data *prog_data = brw->tes.base.prog_data;
51
52   _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_TESS_EVAL);
53   /* _NEW_PROGRAM_CONSTANTS */
54   brw_upload_pull_constants(brw, BRW_NEW_TES_CONSTBUF, &dp->program,
55                             stage_state, prog_data);
56}
57
58const struct brw_tracked_state brw_tes_pull_constants = {
59   .dirty = {
60      .mesa = _NEW_PROGRAM_CONSTANTS,
61      .brw = BRW_NEW_BATCH |
62             BRW_NEW_BLORP |
63             BRW_NEW_TES_PROG_DATA |
64             BRW_NEW_TESS_PROGRAMS,
65   },
66   .emit = brw_upload_tes_pull_constants,
67};
68
69static void
70brw_upload_tes_ubo_surfaces(struct brw_context *brw)
71{
72   struct gl_context *ctx = &brw->ctx;
73
74   /* _NEW_PROGRAM */
75   struct gl_shader_program *prog =
76      ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
77
78   if (!prog || !prog->_LinkedShaders[MESA_SHADER_TESS_EVAL])
79      return;
80
81   /* BRW_NEW_TES_PROG_DATA */
82   struct brw_stage_prog_data *prog_data = brw->tes.base.prog_data;
83
84   brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_TESS_EVAL]->Program,
85			   &brw->tes.base, prog_data);
86}
87
88const struct brw_tracked_state brw_tes_ubo_surfaces = {
89   .dirty = {
90      .mesa = _NEW_PROGRAM,
91      .brw = BRW_NEW_BATCH |
92             BRW_NEW_BLORP |
93             BRW_NEW_TES_PROG_DATA |
94             BRW_NEW_UNIFORM_BUFFER,
95   },
96   .emit = brw_upload_tes_ubo_surfaces,
97};
98
99static void
100brw_upload_tes_abo_surfaces(struct brw_context *brw)
101{
102   /* _NEW_PROGRAM */
103   const struct gl_program *tep = brw->tess_eval_program;
104
105   if (tep) {
106      /* BRW_NEW_TES_PROG_DATA */
107      brw_upload_abo_surfaces(brw, tep, &brw->tes.base,
108                              brw->tes.base.prog_data);
109   }
110}
111
112const struct brw_tracked_state brw_tes_abo_surfaces = {
113   .dirty = {
114      .mesa = _NEW_PROGRAM,
115      .brw = BRW_NEW_ATOMIC_BUFFER |
116             BRW_NEW_BATCH |
117             BRW_NEW_BLORP |
118             BRW_NEW_TES_PROG_DATA,
119   },
120   .emit = brw_upload_tes_abo_surfaces,
121};
122
123static void
124brw_upload_tes_image_surfaces(struct brw_context *brw)
125{
126   /* BRW_NEW_TESS_PROGRAMS */
127   const struct gl_program *tep = brw->tess_eval_program;
128
129   if (tep) {
130      /* BRW_NEW_TES_PROG_DATA, BRW_NEW_IMAGE_UNITS */
131      brw_upload_image_surfaces(brw, tep, &brw->tes.base,
132                                brw->tes.base.prog_data);
133   }
134}
135
136const struct brw_tracked_state brw_tes_image_surfaces = {
137   .dirty = {
138      .brw = BRW_NEW_BATCH |
139             BRW_NEW_BLORP |
140             BRW_NEW_IMAGE_UNITS |
141             BRW_NEW_TESS_PROGRAMS |
142             BRW_NEW_TES_PROG_DATA,
143   },
144   .emit = brw_upload_tes_image_surfaces,
145};
146