src/mesa/state_tracker/st_atom_atomicbuf.c

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