1 /**************************************************************************
2 *
3 * Copyright 2014 Ilia Mirkin. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27
28 #include "program/prog_parameter.h"
29 #include "program/prog_print.h"
30 #include "compiler/glsl/ir_uniform.h"
31
32 #include "pipe/p_context.h"
33 #include "pipe/p_defines.h"
34 #include "util/u_inlines.h"
35 #include "util/u_surface.h"
36
37 #include "st_debug.h"
38 #include "st_context.h"
39 #include "st_atom.h"
40 #include "st_program.h"
41
42 static void
st_bind_ssbos(struct st_context * st,struct gl_program * prog,enum pipe_shader_type shader_type)43 st_bind_ssbos(struct st_context *st, struct gl_program *prog,
44 enum pipe_shader_type shader_type)
45 {
46 unsigned i;
47 struct pipe_shader_buffer buffers[MAX_SHADER_STORAGE_BUFFERS];
48 if (!prog || !st->pipe->set_shader_buffers)
49 return;
50
51 for (i = 0; i < prog->info.num_ssbos; i++) {
52 struct gl_buffer_binding *binding;
53 struct gl_buffer_object *st_obj;
54 struct pipe_shader_buffer *sb = &buffers[i];
55
56 binding = &st->ctx->ShaderStorageBufferBindings[
57 prog->sh.ShaderStorageBlocks[i]->Binding];
58 st_obj = binding->BufferObject;
59
60 sb->buffer = st_obj ? st_obj->buffer : NULL;
61
62 if (sb->buffer) {
63 sb->buffer_offset = binding->Offset;
64 sb->buffer_size = sb->buffer->width0 - binding->Offset;
65
66 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
67 * Take the minimum just to be sure.
68 */
69 if (!binding->AutomaticSize)
70 sb->buffer_size = MIN2(sb->buffer_size, (unsigned) binding->Size);
71 }
72 else {
73 sb->buffer_offset = 0;
74 sb->buffer_size = 0;
75 }
76 }
77 st->pipe->set_shader_buffers(st->pipe, shader_type, 0,
78 prog->info.num_ssbos, buffers,
79 prog->sh.ShaderStorageBlocksWriteAccess);
80
81 /* Clear out any stale shader buffers (or lowered atomic counters). */
82 int num_ssbos = prog->info.num_ssbos;
83 if (!st->has_hw_atomics)
84 num_ssbos += st->last_used_atomic_bindings[shader_type];
85 if (st->last_num_ssbos[shader_type] > num_ssbos) {
86 st->pipe->set_shader_buffers(
87 st->pipe, shader_type,
88 num_ssbos,
89 st->last_num_ssbos[shader_type] - num_ssbos,
90 NULL, 0);
91 st->last_num_ssbos[shader_type] = num_ssbos;
92 }
93 }
94
st_bind_vs_ssbos(struct st_context * st)95 void st_bind_vs_ssbos(struct st_context *st)
96 {
97 struct gl_program *prog =
98 st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
99
100 st_bind_ssbos(st, prog, PIPE_SHADER_VERTEX);
101 }
102
st_bind_fs_ssbos(struct st_context * st)103 void st_bind_fs_ssbos(struct st_context *st)
104 {
105 struct gl_program *prog =
106 st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
107
108 st_bind_ssbos(st, prog, PIPE_SHADER_FRAGMENT);
109 }
110
st_bind_gs_ssbos(struct st_context * st)111 void st_bind_gs_ssbos(struct st_context *st)
112 {
113 struct gl_program *prog =
114 st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
115
116 st_bind_ssbos(st, prog, PIPE_SHADER_GEOMETRY);
117 }
118
st_bind_tcs_ssbos(struct st_context * st)119 void st_bind_tcs_ssbos(struct st_context *st)
120 {
121 struct gl_program *prog =
122 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL];
123
124 st_bind_ssbos(st, prog, PIPE_SHADER_TESS_CTRL);
125 }
126
st_bind_tes_ssbos(struct st_context * st)127 void st_bind_tes_ssbos(struct st_context *st)
128 {
129 struct gl_program *prog =
130 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
131
132 st_bind_ssbos(st, prog, PIPE_SHADER_TESS_EVAL);
133 }
134
st_bind_cs_ssbos(struct st_context * st)135 void st_bind_cs_ssbos(struct st_context *st)
136 {
137 struct gl_program *prog =
138 st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE];
139
140 st_bind_ssbos(st, prog, PIPE_SHADER_COMPUTE);
141 }
142