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-rw-r--r--mesalib/src/glsl/Makefile.sources1
-rw-r--r--mesalib/src/glsl/ast.h15
-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp63
-rw-r--r--mesalib/src/glsl/ast_type.cpp13
-rw-r--r--mesalib/src/glsl/builtin_functions.cpp3
-rw-r--r--mesalib/src/glsl/glsl_lexer.ll2
-rw-r--r--mesalib/src/glsl/glsl_parser.yy13
-rw-r--r--mesalib/src/glsl/glsl_parser_extras.h3
-rw-r--r--mesalib/src/glsl/link_atomics.cpp277
-rw-r--r--mesalib/src/glsl/linker.cpp21
-rw-r--r--mesalib/src/glsl/linker.h8
11 files changed, 411 insertions, 8 deletions
diff --git a/mesalib/src/glsl/Makefile.sources b/mesalib/src/glsl/Makefile.sources
index 2aabc0585..744b0adcf 100644
--- a/mesalib/src/glsl/Makefile.sources
+++ b/mesalib/src/glsl/Makefile.sources
@@ -47,6 +47,7 @@ LIBGLSL_FILES = \
$(GLSL_SRCDIR)/ir_validate.cpp \
$(GLSL_SRCDIR)/ir_variable_refcount.cpp \
$(GLSL_SRCDIR)/linker.cpp \
+ $(GLSL_SRCDIR)/link_atomics.cpp \
$(GLSL_SRCDIR)/link_functions.cpp \
$(GLSL_SRCDIR)/link_interface_blocks.cpp \
$(GLSL_SRCDIR)/link_uniforms.cpp \
diff --git a/mesalib/src/glsl/ast.h b/mesalib/src/glsl/ast.h
index 97905c6a6..5c214b604 100644
--- a/mesalib/src/glsl/ast.h
+++ b/mesalib/src/glsl/ast.h
@@ -385,6 +385,12 @@ struct ast_type_qualifier {
*/
unsigned explicit_binding:1;
+ /**
+ * Flag set if GL_ARB_shader_atomic counter "offset" layout
+ * qualifier is used.
+ */
+ unsigned explicit_offset:1;
+
/** \name Layout qualifiers for GL_AMD_conservative_depth */
/** \{ */
unsigned depth_any:1;
@@ -448,6 +454,15 @@ struct ast_type_qualifier {
int binding;
/**
+ * Offset specified via GL_ARB_shader_atomic_counter's "offset"
+ * keyword.
+ *
+ * \note
+ * This field is only valid if \c explicit_offset is set.
+ */
+ int offset;
+
+ /**
* Return true if and only if an interpolation qualifier is present.
*/
bool has_interpolation() const;
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index f75e68ce1..76b256c73 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -1997,10 +1997,20 @@ validate_binding_qualifier(struct _mesa_glsl_parse_state *state,
return false;
}
+ } else if (var->type->contains_atomic()) {
+ assert(ctx->Const.MaxAtomicBufferBindings <= MAX_COMBINED_ATOMIC_BUFFERS);
+ if (unsigned(qual->binding) >= ctx->Const.MaxAtomicBufferBindings) {
+ _mesa_glsl_error(loc, state, "layout(binding = %d) exceeds the "
+ " maximum number of atomic counter buffer bindings"
+ "(%d)", qual->binding,
+ ctx->Const.MaxAtomicBufferBindings);
+
+ return false;
+ }
} else {
_mesa_glsl_error(loc, state,
"the \"binding\" qualifier only applies to uniform "
- "blocks, samplers, or arrays of samplers");
+ "blocks, samplers, atomic counters, or arrays thereof");
return false;
}
@@ -2300,6 +2310,29 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
var->binding = qual->binding;
}
+ if (var->type->contains_atomic()) {
+ if (var->mode == ir_var_uniform) {
+ if (var->explicit_binding) {
+ unsigned *offset = &state->atomic_counter_offsets[var->binding];
+
+ if (*offset % ATOMIC_COUNTER_SIZE)
+ _mesa_glsl_error(loc, state,
+ "misaligned atomic counter offset");
+
+ var->atomic.offset = *offset;
+ *offset += var->type->atomic_size();
+
+ } else {
+ _mesa_glsl_error(loc, state,
+ "atomic counters require explicit binding point");
+ }
+ } else if (var->mode != ir_var_function_in) {
+ _mesa_glsl_error(loc, state, "atomic counters may only be declared as "
+ "function parameters or uniform-qualified "
+ "global variables");
+ }
+ }
+
/* Does the declaration use the deprecated 'attribute' or 'varying'
* keywords?
*/
@@ -2835,6 +2868,18 @@ ast_declarator_list::hir(exec_list *instructions,
(void) this->type->specifier->hir(instructions, state);
decl_type = this->type->glsl_type(& type_name, state);
+
+ /* An offset-qualified atomic counter declaration sets the default
+ * offset for the next declaration within the same atomic counter
+ * buffer.
+ */
+ if (decl_type && decl_type->contains_atomic()) {
+ if (type->qualifier.flags.q.explicit_binding &&
+ type->qualifier.flags.q.explicit_offset)
+ state->atomic_counter_offsets[type->qualifier.binding] =
+ type->qualifier.offset;
+ }
+
if (this->declarations.is_empty()) {
/* If there is no structure involved in the program text, there are two
* possible scenarios:
@@ -2864,6 +2909,11 @@ ast_declarator_list::hir(exec_list *instructions,
_mesa_glsl_error(&loc, state,
"invalid type `%s' in empty declaration",
type_name);
+ } else if (decl_type->base_type == GLSL_TYPE_ATOMIC_UINT) {
+ /* Empty atomic counter declarations are allowed and useful
+ * to set the default offset qualifier.
+ */
+ return NULL;
} else if (this->type->qualifier.precision != ast_precision_none) {
if (this->type->specifier->structure != NULL) {
_mesa_glsl_error(&loc, state,
@@ -4565,6 +4615,17 @@ ast_process_structure_or_interface_block(exec_list *instructions,
"uniform in non-default uniform block contains sampler");
}
+ if (field_type->contains_atomic()) {
+ /* FINISHME: Add a spec quotation here once updated spec
+ * FINISHME: language is available. See Khronos bug #10903
+ * FINISHME: on whether atomic counters are allowed in
+ * FINISHME: structures.
+ */
+ YYLTYPE loc = decl_list->get_location();
+ _mesa_glsl_error(&loc, state, "atomic counter in structure or "
+ "uniform block");
+ }
+
const struct ast_type_qualifier *const qual =
& decl_list->type->qualifier;
if (qual->flags.q.std140 ||
diff --git a/mesalib/src/glsl/ast_type.cpp b/mesalib/src/glsl/ast_type.cpp
index 8aabd95f9..2b088bf8b 100644
--- a/mesalib/src/glsl/ast_type.cpp
+++ b/mesalib/src/glsl/ast_type.cpp
@@ -72,7 +72,8 @@ ast_type_qualifier::has_layout() const
|| this->flags.q.packed
|| this->flags.q.explicit_location
|| this->flags.q.explicit_index
- || this->flags.q.explicit_binding;
+ || this->flags.q.explicit_binding
+ || this->flags.q.explicit_offset;
}
bool
@@ -121,13 +122,18 @@ ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
ubo_layout_mask.flags.q.packed = 1;
ubo_layout_mask.flags.q.shared = 1;
+ ast_type_qualifier ubo_binding_mask;
+ ubo_binding_mask.flags.q.explicit_binding = 1;
+ ubo_binding_mask.flags.q.explicit_offset = 1;
+
/* Uniform block layout qualifiers get to overwrite each
* other (rightmost having priority), while all other
* qualifiers currently don't allow duplicates.
*/
if ((this->flags.i & q.flags.i & ~(ubo_mat_mask.flags.i |
- ubo_layout_mask.flags.i)) != 0) {
+ ubo_layout_mask.flags.i |
+ ubo_binding_mask.flags.i)) != 0) {
_mesa_glsl_error(loc, state,
"duplicate layout qualifiers used");
return false;
@@ -168,6 +174,9 @@ ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
if (q.flags.q.explicit_binding)
this->binding = q.binding;
+ if (q.flags.q.explicit_offset)
+ this->offset = q.offset;
+
if (q.precision != ast_precision_none)
this->precision = q.precision;
diff --git a/mesalib/src/glsl/builtin_functions.cpp b/mesalib/src/glsl/builtin_functions.cpp
index 3fa0cb5ad..8cb75e5ad 100644
--- a/mesalib/src/glsl/builtin_functions.cpp
+++ b/mesalib/src/glsl/builtin_functions.cpp
@@ -293,7 +293,8 @@ static bool
fs_oes_derivatives(const _mesa_glsl_parse_state *state)
{
return state->target == fragment_shader &&
- (!state->es_shader || state->OES_standard_derivatives_enable);
+ (state->is_version(110, 300) ||
+ state->OES_standard_derivatives_enable);
}
static bool
diff --git a/mesalib/src/glsl/glsl_lexer.ll b/mesalib/src/glsl/glsl_lexer.ll
index e24df8096..822d70d6b 100644
--- a/mesalib/src/glsl/glsl_lexer.ll
+++ b/mesalib/src/glsl/glsl_lexer.ll
@@ -337,6 +337,7 @@ samplerExternalOES {
return IDENTIFIER;
}
+atomic_uint KEYWORD_WITH_ALT(420, 300, 420, 0, yyextra->ARB_shader_atomic_counters_enable, ATOMIC_UINT);
struct return STRUCT;
void return VOID_TOK;
@@ -518,7 +519,6 @@ restrict KEYWORD(0, 300, 0, 0, RESTRICT);
readonly KEYWORD(0, 300, 0, 0, READONLY);
writeonly KEYWORD(0, 300, 0, 0, WRITEONLY);
resource KEYWORD(0, 300, 0, 0, RESOURCE);
-atomic_uint KEYWORD(0, 300, 0, 0, ATOMIC_UINT);
patch KEYWORD(0, 300, 0, 0, PATCH);
sample KEYWORD(0, 300, 0, 0, SAMPLE);
subroutine KEYWORD(0, 300, 0, 0, SUBROUTINE);
diff --git a/mesalib/src/glsl/glsl_parser.yy b/mesalib/src/glsl/glsl_parser.yy
index 14420f8a3..ada3690f6 100644
--- a/mesalib/src/glsl/glsl_parser.yy
+++ b/mesalib/src/glsl/glsl_parser.yy
@@ -144,6 +144,7 @@ static bool match_layout_qualifier(const char *s1, const char *s2,
%token SAMPLER2DMS ISAMPLER2DMS USAMPLER2DMS
%token SAMPLER2DMSARRAY ISAMPLER2DMSARRAY USAMPLER2DMSARRAY
%token SAMPLEREXTERNALOES
+%token ATOMIC_UINT
%token STRUCT VOID_TOK WHILE
%token <identifier> IDENTIFIER TYPE_IDENTIFIER NEW_IDENTIFIER
%type <identifier> any_identifier
@@ -173,7 +174,7 @@ static bool match_layout_qualifier(const char *s1, const char *s2,
%token HVEC2 HVEC3 HVEC4 DVEC2 DVEC3 DVEC4 FVEC2 FVEC3 FVEC4
%token SAMPLER3DRECT
%token SIZEOF CAST NAMESPACE USING
-%token COHERENT RESTRICT READONLY WRITEONLY RESOURCE ATOMIC_UINT PATCH SAMPLE
+%token COHERENT RESTRICT READONLY WRITEONLY RESOURCE PATCH SAMPLE
%token SUBROUTINE
%token ERROR_TOK
@@ -1324,12 +1325,19 @@ layout_qualifier_id:
}
}
- if (state->ARB_shading_language_420pack_enable &&
+ if ((state->ARB_shading_language_420pack_enable ||
+ state->ARB_shader_atomic_counters_enable) &&
match_layout_qualifier("binding", $1, state) == 0) {
$$.flags.q.explicit_binding = 1;
$$.binding = $3;
}
+ if (state->ARB_shader_atomic_counters_enable &&
+ match_layout_qualifier("offset", $1, state) == 0) {
+ $$.flags.q.explicit_offset = 1;
+ $$.offset = $3;
+ }
+
if (match_layout_qualifier("max_vertices", $1, state) == 0) {
$$.flags.q.max_vertices = 1;
@@ -1703,6 +1711,7 @@ basic_type_specifier_nonarray:
| SAMPLER2DMSARRAY { $$ = "sampler2DMSArray"; }
| ISAMPLER2DMSARRAY { $$ = "isampler2DMSArray"; }
| USAMPLER2DMSARRAY { $$ = "usampler2DMSArray"; }
+ | ATOMIC_UINT { $$ = "atomic_uint"; }
;
precision_qualifier:
diff --git a/mesalib/src/glsl/glsl_parser_extras.h b/mesalib/src/glsl/glsl_parser_extras.h
index 345d7a018..d232bb3f6 100644
--- a/mesalib/src/glsl/glsl_parser_extras.h
+++ b/mesalib/src/glsl/glsl_parser_extras.h
@@ -373,6 +373,9 @@ struct _mesa_glsl_parse_state {
* Unused for other shader types.
*/
unsigned gs_input_size;
+
+ /** Atomic counter offsets by binding */
+ unsigned atomic_counter_offsets[MAX_COMBINED_ATOMIC_BUFFERS];
};
# define YYLLOC_DEFAULT(Current, Rhs, N) \
diff --git a/mesalib/src/glsl/link_atomics.cpp b/mesalib/src/glsl/link_atomics.cpp
new file mode 100644
index 000000000..2466bbd79
--- /dev/null
+++ b/mesalib/src/glsl/link_atomics.cpp
@@ -0,0 +1,277 @@
+/*
+ * 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 "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 id;
+ 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 id, ir_variable *var)
+ {
+ counters = (active_atomic_counter *)
+ realloc(counters, sizeof(active_atomic_counter) * (num_counters + 1));
+
+ counters[num_counters].id = id;
+ counters[num_counters].var = var;
+ num_counters++;
+ }
+
+ active_atomic_counter *counters;
+ unsigned num_counters;
+ unsigned stage_references[MESA_SHADER_TYPES];
+ 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->atomic.offset) - int(second->var->atomic.offset);
+ }
+
+ bool
+ check_atomic_counters_overlap(const ir_variable *x, const ir_variable *y)
+ {
+ return ((x->atomic.offset >= y->atomic.offset &&
+ x->atomic.offset < y->atomic.offset + y->type->atomic_size()) ||
+ (y->atomic.offset >= x->atomic.offset &&
+ y->atomic.offset < x->atomic.offset + x->type->atomic_size()));
+ }
+
+ 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_TYPES; ++i) {
+ struct gl_shader *sh = prog->_LinkedShaders[i];
+ if (sh == NULL)
+ continue;
+
+ foreach_list(node, sh->ir) {
+ ir_variable *var = ((ir_instruction *)node)->as_variable();
+
+ if (var && var->type->contains_atomic()) {
+ unsigned id;
+ bool found = prog->UniformHash->get(id, var->name);
+ assert(found);
+ active_atomic_buffer *buf = &buffers[var->binding];
+
+ /* 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(id, var);
+
+ buf->stage_references[i]++;
+ buf->size = MAX2(buf->size, var->atomic.offset +
+ var->type->atomic_size());
+ }
+ }
+ }
+
+ 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->atomic.offset);
+ }
+ }
+ }
+ return buffers;
+ }
+}
+
+void
+link_assign_atomic_counter_resources(struct gl_context *ctx,
+ struct gl_shader_program *prog)
+{
+ unsigned num_buffers;
+ 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;
+ const unsigned id = ab.counters[j].id;
+ gl_uniform_storage *const storage = &prog->UniformStorage[id];
+
+ mab.Uniforms[j] = id;
+ var->atomic.buffer_index = i;
+ storage->atomic_buffer_index = i;
+ storage->offset = var->atomic.offset;
+ storage->array_stride = (var->type->is_array() ?
+ var->type->element_type()->atomic_size() : 0);
+ }
+
+ /* Assign stage-specific fields. */
+ for (unsigned j = 0; j < MESA_SHADER_TYPES; ++j)
+ mab.StageReferences[j] =
+ (ab.stage_references[j] ? GL_TRUE : GL_FALSE);
+
+ i++;
+ }
+
+ delete [] abs;
+ assert(i == num_buffers);
+}
+
+void
+link_check_atomic_counter_resources(struct gl_context *ctx,
+ struct gl_shader_program *prog)
+{
+ STATIC_ASSERT(MESA_SHADER_TYPES == 3);
+ static const char *shader_names[MESA_SHADER_TYPES] = {
+ "vertex", "geometry", "fragment"
+ };
+ const unsigned max_atomic_counters[MESA_SHADER_TYPES] = {
+ ctx->Const.VertexProgram.MaxAtomicCounters,
+ ctx->Const.GeometryProgram.MaxAtomicCounters,
+ ctx->Const.FragmentProgram.MaxAtomicCounters
+ };
+ const unsigned max_atomic_buffers[MESA_SHADER_TYPES] = {
+ ctx->Const.VertexProgram.MaxAtomicBuffers,
+ ctx->Const.GeometryProgram.MaxAtomicBuffers,
+ ctx->Const.FragmentProgram.MaxAtomicBuffers
+ };
+ unsigned num_buffers;
+ active_atomic_buffer *const abs =
+ find_active_atomic_counters(ctx, prog, &num_buffers);
+ unsigned atomic_counters[MESA_SHADER_TYPES] = {};
+ unsigned atomic_buffers[MESA_SHADER_TYPES] = {};
+ 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_TYPES; ++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_TYPES; i++) {
+ if (atomic_counters[i] > max_atomic_counters[i])
+ linker_error(prog, "Too many %s shader atomic counters",
+ shader_names[i]);
+
+ if (atomic_buffers[i] > max_atomic_buffers[i])
+ linker_error(prog, "Too many %s shader atomic counter buffers",
+ shader_names[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;
+}
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index 49bb142a8..1d53b6599 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -651,6 +651,14 @@ cross_validate_globals(struct gl_shader_program *prog,
existing->explicit_binding = true;
}
+ if (var->type->contains_atomic() &&
+ var->atomic.offset != existing->atomic.offset) {
+ linker_error(prog, "offset specifications for %s "
+ "`%s' have differing values\n",
+ mode_string(var), var->name);
+ return;
+ }
+
/* Validate layout qualifiers for gl_FragDepth.
*
* From the AMD/ARB_conservative_depth specs:
@@ -1485,8 +1493,12 @@ update_array_sizes(struct gl_shader_program *prog)
/* GL_ARB_uniform_buffer_object says that std140 uniforms
* will not be eliminated. Since we always do std140, just
* don't resize arrays in UBOs.
+ *
+ * Atomic counters are supposed to get deterministic
+ * locations assigned based on the declaration ordering and
+ * sizes, array compaction would mess that up.
*/
- if (var->is_in_uniform_block())
+ if (var->is_in_uniform_block() || var->type->contains_atomic())
continue;
unsigned int size = var->max_array_access;
@@ -1991,6 +2003,10 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
prog->UniformBlockStageIndex[i] = NULL;
}
+ ralloc_free(prog->AtomicBuffers);
+ prog->AtomicBuffers = NULL;
+ prog->NumAtomicBuffers = 0;
+
/* Separate the shaders into groups based on their type.
*/
struct gl_shader **vert_shader_list;
@@ -2342,9 +2358,12 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
update_array_sizes(prog);
link_assign_uniform_locations(prog);
+ link_assign_atomic_counter_resources(ctx, prog);
store_fragdepth_layout(prog);
check_resources(ctx, prog);
+ link_check_atomic_counter_resources(ctx, prog);
+
if (!prog->LinkStatus)
goto done;
diff --git a/mesalib/src/glsl/linker.h b/mesalib/src/glsl/linker.h
index 887cd33d1..7b1f6f9c5 100644
--- a/mesalib/src/glsl/linker.h
+++ b/mesalib/src/glsl/linker.h
@@ -69,6 +69,14 @@ validate_interstage_interface_blocks(struct gl_shader_program *prog,
const gl_shader *producer,
const gl_shader *consumer);
+extern void
+link_assign_atomic_counter_resources(struct gl_context *ctx,
+ struct gl_shader_program *prog);
+
+extern void
+link_check_atomic_counter_resources(struct gl_context *ctx,
+ struct gl_shader_program *prog);
+
/**
* Class for processing all of the leaf fields of a variable that corresponds
* to a program resource.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 23:08:42 +0000