1 /**************************************************************************
2 *
3 * Copyright 2011 Marek Olšák <maraeo@gmail.com>
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 THE AUTHORS 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
29 /**
30 * glTextureBarrierNV function
31 *
32 * \author Marek Olšák
33 */
34
35
36 #include "main/imports.h"
37 #include "main/context.h"
38
39 #include "pipe/p_context.h"
40 #include "pipe/p_defines.h"
41 #include "st_context.h"
42 #include "st_cb_texturebarrier.h"
43
44
45 /**
46 * Called via ctx->Driver.TextureBarrier()
47 */
48 static void
st_TextureBarrier(struct gl_context * ctx)49 st_TextureBarrier(struct gl_context *ctx)
50 {
51 struct pipe_context *pipe = st_context(ctx)->pipe;
52
53 pipe->texture_barrier(pipe, PIPE_TEXTURE_BARRIER_SAMPLER);
54 }
55
56
57 /**
58 * Called via ctx->Driver.BlendBarrier()
59 */
60 static void
st_BlendBarrier(struct gl_context * ctx)61 st_BlendBarrier(struct gl_context *ctx)
62 {
63 struct pipe_context *pipe = st_context(ctx)->pipe;
64
65 pipe->texture_barrier(pipe, PIPE_TEXTURE_BARRIER_FRAMEBUFFER);
66 }
67
68
69 /**
70 * Called via ctx->Driver.MemoryBarrier()
71 */
72 static void
st_MemoryBarrier(struct gl_context * ctx,GLbitfield barriers)73 st_MemoryBarrier(struct gl_context *ctx, GLbitfield barriers)
74 {
75 struct pipe_context *pipe = st_context(ctx)->pipe;
76 unsigned flags = 0;
77
78 if (barriers & GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT)
79 flags |= PIPE_BARRIER_VERTEX_BUFFER;
80 if (barriers & GL_ELEMENT_ARRAY_BARRIER_BIT)
81 flags |= PIPE_BARRIER_INDEX_BUFFER;
82 if (barriers & GL_UNIFORM_BARRIER_BIT)
83 flags |= PIPE_BARRIER_CONSTANT_BUFFER;
84 if (barriers & GL_TEXTURE_FETCH_BARRIER_BIT)
85 flags |= PIPE_BARRIER_TEXTURE;
86 if (barriers & GL_SHADER_IMAGE_ACCESS_BARRIER_BIT)
87 flags |= PIPE_BARRIER_IMAGE;
88 if (barriers & GL_COMMAND_BARRIER_BIT)
89 flags |= PIPE_BARRIER_INDIRECT_BUFFER;
90 if (barriers & GL_PIXEL_BUFFER_BARRIER_BIT) {
91 /* The PBO may be
92 * (1) bound as a texture for PBO uploads, or
93 * (2) accessed by the CPU via transfer ops.
94 * For case (2), we assume automatic flushing by the driver.
95 */
96 flags |= PIPE_BARRIER_TEXTURE;
97 }
98 /* GL_TEXTURE_UPDATE_BARRIER_BIT:
99 * Texture updates translate to:
100 * (1) texture transfers to/from the CPU,
101 * (2) texture as blit destination, or
102 * (3) texture as framebuffer.
103 * In all cases, we assume the driver does the required flushing
104 * automatically.
105 */
106 /* GL_BUFFER_UPDATE_BARRIER_BIT:
107 * Buffer updates translate to
108 * (1) buffer transfers to/from the CPU,
109 * (2) resource copies and clears.
110 * In all cases, we assume the driver does the required flushing
111 * automatically.
112 */
113 if (barriers & GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT)
114 flags |= PIPE_BARRIER_MAPPED_BUFFER;
115 if (barriers & GL_QUERY_BUFFER_BARRIER_BIT)
116 flags |= PIPE_BARRIER_QUERY_BUFFER;
117 if (barriers & GL_FRAMEBUFFER_BARRIER_BIT)
118 flags |= PIPE_BARRIER_FRAMEBUFFER;
119 if (barriers & GL_TRANSFORM_FEEDBACK_BARRIER_BIT)
120 flags |= PIPE_BARRIER_STREAMOUT_BUFFER;
121 if (barriers & GL_ATOMIC_COUNTER_BARRIER_BIT)
122 flags |= PIPE_BARRIER_SHADER_BUFFER;
123 if (barriers & GL_SHADER_STORAGE_BARRIER_BIT)
124 flags |= PIPE_BARRIER_SHADER_BUFFER;
125
126 if (flags && pipe->memory_barrier)
127 pipe->memory_barrier(pipe, flags);
128 }
129
st_init_texture_barrier_functions(struct dd_function_table * functions)130 void st_init_texture_barrier_functions(struct dd_function_table *functions)
131 {
132 functions->TextureBarrier = st_TextureBarrier;
133 functions->BlendBarrier = st_BlendBarrier;
134 functions->MemoryBarrier = st_MemoryBarrier;
135 }
136