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_cb_bufferobjects.h"
39 #include "st_context.h"
40 #include "st_atom.h"
41 #include "st_program.h"
42
43 static void
st_binding_to_sb(struct gl_buffer_binding * binding,struct pipe_shader_buffer * sb)44 st_binding_to_sb(struct gl_buffer_binding *binding,
45 struct pipe_shader_buffer *sb)
46 {
47 struct st_buffer_object *st_obj =
48 st_buffer_object(binding->BufferObject);
49
50 if (st_obj && st_obj->buffer) {
51 sb->buffer = st_obj->buffer;
52 sb->buffer_offset = binding->Offset;
53 sb->buffer_size = st_obj->buffer->width0 - binding->Offset;
54
55 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
56 * Take the minimum just to be sure.
57 */
58 if (!binding->AutomaticSize)
59 sb->buffer_size = MIN2(sb->buffer_size, (unsigned) binding->Size);
60 } else {
61 sb->buffer = NULL;
62 sb->buffer_offset = 0;
63 sb->buffer_size = 0;
64 }
65 }
66
67 static void
st_bind_atomics(struct st_context * st,struct gl_program * prog,gl_shader_stage stage)68 st_bind_atomics(struct st_context *st, struct gl_program *prog,
69 gl_shader_stage stage)
70 {
71 unsigned i;
72 enum pipe_shader_type shader_type = pipe_shader_type_from_mesa(stage);
73
74 if (!prog || !st->pipe->set_shader_buffers || st->has_hw_atomics)
75 return;
76
77 /* For !has_hw_atomics, the atomic counters have been rewritten to be above
78 * the SSBOs used by the program.
79 */
80 unsigned buffer_base = prog->info.num_ssbos;
81 unsigned used_bindings = 0;
82 for (i = 0; i < prog->sh.data->NumAtomicBuffers; i++) {
83 struct gl_active_atomic_buffer *atomic =
84 &prog->sh.data->AtomicBuffers[i];
85 struct pipe_shader_buffer sb;
86
87 st_binding_to_sb(&st->ctx->AtomicBufferBindings[atomic->Binding], &sb);
88
89 st->pipe->set_shader_buffers(st->pipe, shader_type,
90 buffer_base + atomic->Binding, 1, &sb, 0x1);
91 used_bindings = MAX2(atomic->Binding + 1, used_bindings);
92 }
93 st->last_used_atomic_bindings[shader_type] = used_bindings;
94 }
95
96 void
st_bind_vs_atomics(struct st_context * st)97 st_bind_vs_atomics(struct st_context *st)
98 {
99 struct gl_program *prog =
100 st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
101
102 st_bind_atomics(st, prog, MESA_SHADER_VERTEX);
103 }
104
105 void
st_bind_fs_atomics(struct st_context * st)106 st_bind_fs_atomics(struct st_context *st)
107 {
108 struct gl_program *prog =
109 st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
110
111 st_bind_atomics(st, prog, MESA_SHADER_FRAGMENT);
112 }
113
114 void
st_bind_gs_atomics(struct st_context * st)115 st_bind_gs_atomics(struct st_context *st)
116 {
117 struct gl_program *prog =
118 st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
119
120 st_bind_atomics(st, prog, MESA_SHADER_GEOMETRY);
121 }
122
123 void
st_bind_tcs_atomics(struct st_context * st)124 st_bind_tcs_atomics(struct st_context *st)
125 {
126 struct gl_program *prog =
127 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL];
128
129 st_bind_atomics(st, prog, MESA_SHADER_TESS_CTRL);
130 }
131
132 void
st_bind_tes_atomics(struct st_context * st)133 st_bind_tes_atomics(struct st_context *st)
134 {
135 struct gl_program *prog =
136 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
137
138 st_bind_atomics(st, prog, MESA_SHADER_TESS_EVAL);
139 }
140
141 void
st_bind_cs_atomics(struct st_context * st)142 st_bind_cs_atomics(struct st_context *st)
143 {
144 if (st->has_hw_atomics) {
145 st_bind_hw_atomic_buffers(st);
146 return;
147 }
148 struct gl_program *prog =
149 st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE];
150
151 st_bind_atomics(st, prog, MESA_SHADER_COMPUTE);
152 }
153
154 void
st_bind_hw_atomic_buffers(struct st_context * st)155 st_bind_hw_atomic_buffers(struct st_context *st)
156 {
157 struct pipe_shader_buffer buffers[PIPE_MAX_HW_ATOMIC_BUFFERS];
158 int i;
159
160 if (!st->has_hw_atomics)
161 return;
162
163 for (i = 0; i < st->ctx->Const.MaxAtomicBufferBindings; i++)
164 st_binding_to_sb(&st->ctx->AtomicBufferBindings[i], &buffers[i]);
165
166 st->pipe->set_hw_atomic_buffers(st->pipe, 0, st->ctx->Const.MaxAtomicBufferBindings, buffers);
167 }
168