1 /**************************************************************************
2 *
3 * Copyright 2016 Samuel Pitoiset
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * 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, sub license, 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 portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "main/state.h"
29 #include "st_atom.h"
30 #include "st_context.h"
31 #include "st_cb_bitmap.h"
32 #include "st_cb_bufferobjects.h"
33 #include "st_cb_compute.h"
34
35 #include "pipe/p_context.h"
36
st_dispatch_compute_common(struct gl_context * ctx,const GLuint * num_groups,const GLuint * group_size,struct pipe_resource * indirect,GLintptr indirect_offset)37 static void st_dispatch_compute_common(struct gl_context *ctx,
38 const GLuint *num_groups,
39 const GLuint *group_size,
40 struct pipe_resource *indirect,
41 GLintptr indirect_offset)
42 {
43 struct gl_shader_program *prog =
44 ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE];
45 struct st_context *st = st_context(ctx);
46 struct pipe_context *pipe = st->pipe;
47 struct pipe_grid_info info = { 0 };
48
49 st_flush_bitmap_cache(st);
50 st_invalidate_readpix_cache(st);
51
52 if (ctx->NewState)
53 _mesa_update_state(ctx);
54
55 if ((st->dirty | ctx->NewDriverState) & ST_PIPELINE_COMPUTE_STATE_MASK ||
56 st->compute_shader_may_be_dirty)
57 st_validate_state(st, ST_PIPELINE_COMPUTE);
58
59 for (unsigned i = 0; i < 3; i++) {
60 info.block[i] = group_size ? group_size[i] : prog->Comp.LocalSize[i];
61 info.grid[i] = num_groups ? num_groups[i] : 0;
62 }
63
64 if (indirect) {
65 info.indirect = indirect;
66 info.indirect_offset = indirect_offset;
67 }
68
69 pipe->launch_grid(pipe, &info);
70 }
71
st_dispatch_compute(struct gl_context * ctx,const GLuint * num_groups)72 static void st_dispatch_compute(struct gl_context *ctx,
73 const GLuint *num_groups)
74 {
75 st_dispatch_compute_common(ctx, num_groups, NULL, NULL, 0);
76 }
77
st_dispatch_compute_indirect(struct gl_context * ctx,GLintptr indirect_offset)78 static void st_dispatch_compute_indirect(struct gl_context *ctx,
79 GLintptr indirect_offset)
80 {
81 struct gl_buffer_object *indirect_buffer = ctx->DispatchIndirectBuffer;
82 struct pipe_resource *indirect = st_buffer_object(indirect_buffer)->buffer;
83
84 st_dispatch_compute_common(ctx, NULL, NULL, indirect, indirect_offset);
85 }
86
st_dispatch_compute_group_size(struct gl_context * ctx,const GLuint * num_groups,const GLuint * group_size)87 static void st_dispatch_compute_group_size(struct gl_context *ctx,
88 const GLuint *num_groups,
89 const GLuint *group_size)
90 {
91 st_dispatch_compute_common(ctx, num_groups, group_size, NULL, 0);
92 }
93
st_init_compute_functions(struct dd_function_table * functions)94 void st_init_compute_functions(struct dd_function_table *functions)
95 {
96 functions->DispatchCompute = st_dispatch_compute;
97 functions->DispatchComputeIndirect = st_dispatch_compute_indirect;
98 functions->DispatchComputeGroupSize = st_dispatch_compute_group_size;
99 }
100