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 DEALINGS
21  * 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 GS constant buffer reflecting the current GS program's
33  * constants, if needed by the GS program.
34  *
35  * Otherwise, constants go through the CURBEs using the brw_constant_buffer
36  * state atom.
37  */
38 static void
39 brw_upload_gs_pull_constants(struct brw_context *brw)
40 {
41    struct brw_stage_state *stage_state = &brw->gs.base;
42 
43    /* BRW_NEW_GEOMETRY_PROGRAM */
44    struct brw_program *gp = (struct brw_program *) brw->geometry_program;
45 
46    if (!gp)
47       return;
48 
49    /* BRW_NEW_GS_PROG_DATA */
50    const struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
51 
52    _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_GEOMETRY);
53    /* _NEW_PROGRAM_CONSTANTS */
54    brw_upload_pull_constants(brw, BRW_NEW_GS_CONSTBUF, &gp->program,
55                              stage_state, prog_data);
56 }
57 
58 const struct brw_tracked_state brw_gs_pull_constants = {
59    .dirty = {
60       .mesa = _NEW_PROGRAM_CONSTANTS,
61       .brw = BRW_NEW_BATCH |
62              BRW_NEW_BLORP |
63              BRW_NEW_GEOMETRY_PROGRAM |
64              BRW_NEW_GS_PROG_DATA,
65    },
66    .emit = brw_upload_gs_pull_constants,
67 };
68 
69 static void
70 brw_upload_gs_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_GEOMETRY];
77 
78    if (!prog || !prog->_LinkedShaders[MESA_SHADER_GEOMETRY])
79       return;
80 
81    /* BRW_NEW_GS_PROG_DATA */
82    struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
83 
84    brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program,
85 			   &brw->gs.base, prog_data);
86 }
87 
88 const struct brw_tracked_state brw_gs_ubo_surfaces = {
89    .dirty = {
90       .mesa = _NEW_PROGRAM,
91       .brw = BRW_NEW_BATCH |
92              BRW_NEW_BLORP |
93              BRW_NEW_GS_PROG_DATA |
94              BRW_NEW_UNIFORM_BUFFER,
95    },
96    .emit = brw_upload_gs_ubo_surfaces,
97 };
98 
99 static void
100 brw_upload_gs_abo_surfaces(struct brw_context *brw)
101 {
102    /* _NEW_PROGRAM */
103    const struct gl_program *gp = brw->geometry_program;
104 
105    if (gp) {
106       /* BRW_NEW_GS_PROG_DATA */
107       brw_upload_abo_surfaces(brw, gp, &brw->gs.base, brw->gs.base.prog_data);
108    }
109 }
110 
111 const struct brw_tracked_state brw_gs_abo_surfaces = {
112    .dirty = {
113       .mesa = _NEW_PROGRAM,
114       .brw = BRW_NEW_ATOMIC_BUFFER |
115              BRW_NEW_BATCH |
116              BRW_NEW_BLORP |
117              BRW_NEW_GS_PROG_DATA,
118    },
119    .emit = brw_upload_gs_abo_surfaces,
120 };
121 
122 static void
123 brw_upload_gs_image_surfaces(struct brw_context *brw)
124 {
125    /* BRW_NEW_GEOMETRY_PROGRAM */
126    const struct gl_program *gp = brw->geometry_program;
127 
128    if (gp) {
129       /* BRW_NEW_GS_PROG_DATA, BRW_NEW_IMAGE_UNITS, _NEW_TEXTURE */
130       brw_upload_image_surfaces(brw, gp, &brw->gs.base,
131                                 brw->gs.base.prog_data);
132    }
133 }
134 
135 const struct brw_tracked_state brw_gs_image_surfaces = {
136    .dirty = {
137       .mesa = _NEW_TEXTURE,
138       .brw = BRW_NEW_BATCH |
139              BRW_NEW_BLORP |
140              BRW_NEW_GEOMETRY_PROGRAM |
141              BRW_NEW_GS_PROG_DATA |
142              BRW_NEW_IMAGE_UNITS,
143    },
144    .emit = brw_upload_gs_image_surfaces,
145 };
146