glsl: move to compiler/

Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Matt Turner <[email protected]>
Acked-by: Jose Fonseca <[email protected]>

1 files changed, 0 insertions, 346 deletions

diff --git a/src/glsl/link_atomics.cpp b/src/glsl/link_atomics.cpp
deleted file mode 100644
index 277d4737ab7..00000000000
--- a/src/glsl/link_atomics.cpp
+++ /dev/null
@@ -1,346 +0,0 @@
-/*
- * Copyright © 2013 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include "glsl_parser_extras.h"
-#include "ir.h"
-#include "ir_uniform.h"
-#include "linker.h"
-#include "program/hash_table.h"
-#include "main/macros.h"
-
-namespace {
-   /*
-    * Atomic counter as seen by the program.
-    */
-   struct active_atomic_counter {
-      unsigned uniform_loc;
-      ir_variable *var;
-   };
-
-   /*
-    * Atomic counter buffer referenced by the program.  There is a one
-    * to one correspondence between these and the objects that can be
-    * queried using glGetActiveAtomicCounterBufferiv().
-    */
-   struct active_atomic_buffer {
-      active_atomic_buffer()
-         : counters(0), num_counters(0), stage_references(), size(0)
-      {}
-
-      ~active_atomic_buffer()
-      {
-         free(counters);
-      }
-
-      void push_back(unsigned uniform_loc, ir_variable *var)
-      {
-         active_atomic_counter *new_counters;
-
-         new_counters = (active_atomic_counter *)
-            realloc(counters, sizeof(active_atomic_counter) *
-                    (num_counters + 1));
-
-         if (new_counters == NULL) {
-            _mesa_error_no_memory(__func__);
-            return;
-         }
-
-         counters = new_counters;
-         counters[num_counters].uniform_loc = uniform_loc;
-         counters[num_counters].var = var;
-         num_counters++;
-      }
-
-      active_atomic_counter *counters;
-      unsigned num_counters;
-      unsigned stage_references[MESA_SHADER_STAGES];
-      unsigned size;
-   };
-
-   int
-   cmp_actives(const void *a, const void *b)
-   {
-      const active_atomic_counter *const first = (active_atomic_counter *) a;
-      const active_atomic_counter *const second = (active_atomic_counter *) b;
-
-      return int(first->var->data.offset) - int(second->var->data.offset);
-   }
-
-   bool
-   check_atomic_counters_overlap(const ir_variable *x, const ir_variable *y)
-   {
-      return ((x->data.offset >= y->data.offset &&
-               x->data.offset < y->data.offset + y->type->atomic_size()) ||
-              (y->data.offset >= x->data.offset &&
-               y->data.offset < x->data.offset + x->type->atomic_size()));
-   }
-
-   void
-   process_atomic_variable(const glsl_type *t, struct gl_shader_program *prog,
-                           unsigned *uniform_loc, ir_variable *var,
-                           active_atomic_buffer *const buffers,
-                           unsigned *num_buffers, int *offset,
-                           const unsigned shader_stage)
-   {
-      /* FIXME: Arrays of arrays get counted separately. For example:
-       * x1[3][3][2] = 9 counters
-       * x2[3][2]    = 3 counters
-       * x3[2]       = 1 counter
-       *
-       * However this code marks all the counters as active even when they
-       * might not be used.
-       */
-      if (t->is_array() && t->fields.array->is_array()) {
-         for (unsigned i = 0; i < t->length; i++) {
-            process_atomic_variable(t->fields.array, prog, uniform_loc,
-                                    var, buffers, num_buffers, offset,
-                                    shader_stage);
-         }
-      } else {
-         active_atomic_buffer *buf = &buffers[var->data.binding];
-         gl_uniform_storage *const storage =
-            &prog->UniformStorage[*uniform_loc];
-
-         /* If this is the first time the buffer is used, increment
-          * the counter of buffers used.
-          */
-         if (buf->size == 0)
-            (*num_buffers)++;
-
-         buf->push_back(*uniform_loc, var);
-
-         buf->stage_references[shader_stage]++;
-         buf->size = MAX2(buf->size, *offset + t->atomic_size());
-
-         storage->offset = *offset;
-         *offset += t->atomic_size();
-
-         (*uniform_loc)++;
-      }
-   }
-
-   active_atomic_buffer *
-   find_active_atomic_counters(struct gl_context *ctx,
-                               struct gl_shader_program *prog,
-                               unsigned *num_buffers)
-   {
-      active_atomic_buffer *const buffers =
-         new active_atomic_buffer[ctx->Const.MaxAtomicBufferBindings];
-
-      *num_buffers = 0;
-
-      for (unsigned i = 0; i < MESA_SHADER_STAGES; ++i) {
-         struct gl_shader *sh = prog->_LinkedShaders[i];
-         if (sh == NULL)
-            continue;
-
-         foreach_in_list(ir_instruction, node, sh->ir) {
-            ir_variable *var = node->as_variable();
-
-            if (var && var->type->contains_atomic()) {
-               int offset = var->data.offset;
-               unsigned uniform_loc = var->data.location;
-               process_atomic_variable(var->type, prog, &uniform_loc,
-                                       var, buffers, num_buffers, &offset, i);
-            }
-         }
-      }
-
-      for (unsigned i = 0; i < ctx->Const.MaxAtomicBufferBindings; i++) {
-         if (buffers[i].size == 0)
-            continue;
-
-         qsort(buffers[i].counters, buffers[i].num_counters,
-               sizeof(active_atomic_counter),
-               cmp_actives);
-
-         for (unsigned j = 1; j < buffers[i].num_counters; j++) {
-            /* If an overlapping counter found, it must be a reference to the
-             * same counter from a different shader stage.
-             */
-            if (check_atomic_counters_overlap(buffers[i].counters[j-1].var,
-                                              buffers[i].counters[j].var)
-                && strcmp(buffers[i].counters[j-1].var->name,
-                          buffers[i].counters[j].var->name) != 0) {
-               linker_error(prog, "Atomic counter %s declared at offset %d "
-                            "which is already in use.",
-                            buffers[i].counters[j].var->name,
-                            buffers[i].counters[j].var->data.offset);
-            }
-         }
-      }
-      return buffers;
-   }
-}
-
-void
-link_assign_atomic_counter_resources(struct gl_context *ctx,
-                                     struct gl_shader_program *prog)
-{
-   unsigned num_buffers;
-   unsigned num_atomic_buffers[MESA_SHADER_STAGES] = {};
-   active_atomic_buffer *abs =
-      find_active_atomic_counters(ctx, prog, &num_buffers);
-
-   prog->AtomicBuffers = rzalloc_array(prog, gl_active_atomic_buffer,
-                                       num_buffers);
-   prog->NumAtomicBuffers = num_buffers;
-
-   unsigned i = 0;
-   for (unsigned binding = 0;
-        binding < ctx->Const.MaxAtomicBufferBindings;
-        binding++) {
-
-      /* If the binding was not used, skip.
-       */
-      if (abs[binding].size == 0)
-         continue;
-
-      active_atomic_buffer &ab = abs[binding];
-      gl_active_atomic_buffer &mab = prog->AtomicBuffers[i];
-
-      /* Assign buffer-specific fields. */
-      mab.Binding = binding;
-      mab.MinimumSize = ab.size;
-      mab.Uniforms = rzalloc_array(prog->AtomicBuffers, GLuint,
-                                   ab.num_counters);
-      mab.NumUniforms = ab.num_counters;
-
-      /* Assign counter-specific fields. */
-      for (unsigned j = 0; j < ab.num_counters; j++) {
-         ir_variable *const var = ab.counters[j].var;
-         gl_uniform_storage *const storage =
-            &prog->UniformStorage[ab.counters[j].uniform_loc];
-
-         mab.Uniforms[j] = ab.counters[j].uniform_loc;
-         if (!var->data.explicit_binding)
-            var->data.binding = i;
-
-         storage->atomic_buffer_index = i;
-         storage->offset = var->data.offset;
-         storage->array_stride = (var->type->is_array() ?
-                                  var->type->without_array()->atomic_size() : 0);
-         if (!var->type->is_matrix())
-            storage->matrix_stride = 0;
-      }
-
-      /* Assign stage-specific fields. */
-      for (unsigned j = 0; j < MESA_SHADER_STAGES; ++j) {
-         if (ab.stage_references[j]) {
-            mab.StageReferences[j] = GL_TRUE;
-            num_atomic_buffers[j]++;
-         } else {
-            mab.StageReferences[j] = GL_FALSE;
-         }
-      }
-
-      i++;
-   }
-
-   /* Store a list pointers to atomic buffers per stage and store the index
-    * to the intra-stage buffer list in uniform storage.
-    */
-   for (unsigned j = 0; j < MESA_SHADER_STAGES; ++j) {
-      if (prog->_LinkedShaders[j] && num_atomic_buffers[j] > 0) {
-         prog->_LinkedShaders[j]->NumAtomicBuffers = num_atomic_buffers[j];
-         prog->_LinkedShaders[j]->AtomicBuffers =
-            rzalloc_array(prog, gl_active_atomic_buffer *,
-                          num_atomic_buffers[j]);
-
-         unsigned intra_stage_idx = 0;
-         for (unsigned i = 0; i < num_buffers; i++) {
-            struct gl_active_atomic_buffer *atomic_buffer =
-               &prog->AtomicBuffers[i];
-            if (atomic_buffer->StageReferences[j]) {
-               prog->_LinkedShaders[j]->AtomicBuffers[intra_stage_idx] =
-                  atomic_buffer;
-
-               for (unsigned u = 0; u < atomic_buffer->NumUniforms; u++) {
-                  prog->UniformStorage[atomic_buffer->Uniforms[u]].opaque[j].index =
-                     intra_stage_idx;
-                  prog->UniformStorage[atomic_buffer->Uniforms[u]].opaque[j].active =
-                     true;
-               }
-
-               intra_stage_idx++;
-            }
-         }
-      }
-   }
-
-   delete [] abs;
-   assert(i == num_buffers);
-}
-
-void
-link_check_atomic_counter_resources(struct gl_context *ctx,
-                                    struct gl_shader_program *prog)
-{
-   unsigned num_buffers;
-   active_atomic_buffer *const abs =
-      find_active_atomic_counters(ctx, prog, &num_buffers);
-   unsigned atomic_counters[MESA_SHADER_STAGES] = {};
-   unsigned atomic_buffers[MESA_SHADER_STAGES] = {};
-   unsigned total_atomic_counters = 0;
-   unsigned total_atomic_buffers = 0;
-
-   /* Sum the required resources.  Note that this counts buffers and
-    * counters referenced by several shader stages multiple times
-    * against the combined limit -- That's the behavior the spec
-    * requires.
-    */
-   for (unsigned i = 0; i < ctx->Const.MaxAtomicBufferBindings; i++) {
-      if (abs[i].size == 0)
-         continue;
-
-      for (unsigned j = 0; j < MESA_SHADER_STAGES; ++j) {
-         const unsigned n = abs[i].stage_references[j];
-
-         if (n) {
-            atomic_counters[j] += n;
-            total_atomic_counters += n;
-            atomic_buffers[j]++;
-            total_atomic_buffers++;
-         }
-      }
-   }
-
-   /* Check that they are within the supported limits. */
-   for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
-      if (atomic_counters[i] > ctx->Const.Program[i].MaxAtomicCounters)
-         linker_error(prog, "Too many %s shader atomic counters",
-                      _mesa_shader_stage_to_string(i));
-
-      if (atomic_buffers[i] > ctx->Const.Program[i].MaxAtomicBuffers)
-         linker_error(prog, "Too many %s shader atomic counter buffers",
-                      _mesa_shader_stage_to_string(i));
-   }
-
-   if (total_atomic_counters > ctx->Const.MaxCombinedAtomicCounters)
-      linker_error(prog, "Too many combined atomic counters");
-
-   if (total_atomic_buffers > ctx->Const.MaxCombinedAtomicBuffers)
-      linker_error(prog, "Too many combined atomic buffers");
-
-   delete [] abs;
-}