364 lines
11 KiB
C++
364 lines
11 KiB
C++
/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "ast.h"
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void
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ast_type_specifier::print(void) const
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{
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if (structure) {
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structure->print();
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} else {
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printf("%s ", type_name);
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}
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if (array_specifier) {
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array_specifier->print();
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}
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}
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bool
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ast_fully_specified_type::has_qualifiers() const
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{
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return this->qualifier.flags.i != 0;
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}
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bool ast_type_qualifier::has_interpolation() const
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{
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return this->flags.q.smooth
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|| this->flags.q.flat
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|| this->flags.q.noperspective;
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}
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bool
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ast_type_qualifier::has_layout() const
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{
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return this->flags.q.origin_upper_left
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|| this->flags.q.pixel_center_integer
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|| this->flags.q.depth_any
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|| this->flags.q.depth_greater
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|| this->flags.q.depth_less
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|| this->flags.q.depth_unchanged
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|| this->flags.q.std140
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|| this->flags.q.shared
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|| this->flags.q.column_major
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|| this->flags.q.row_major
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|| this->flags.q.packed
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|| this->flags.q.explicit_location
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|| this->flags.q.explicit_index
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|| this->flags.q.explicit_binding
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|| this->flags.q.explicit_offset;
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}
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bool
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ast_type_qualifier::has_storage() const
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{
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return this->flags.q.constant
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|| this->flags.q.attribute
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|| this->flags.q.varying
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|| this->flags.q.in
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|| this->flags.q.out
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|| this->flags.q.uniform;
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}
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bool
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ast_type_qualifier::has_auxiliary_storage() const
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{
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return this->flags.q.centroid
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|| this->flags.q.sample;
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}
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const char*
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ast_type_qualifier::interpolation_string() const
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{
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if (this->flags.q.smooth)
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return "smooth";
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else if (this->flags.q.flat)
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return "flat";
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else if (this->flags.q.noperspective)
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return "noperspective";
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else
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return NULL;
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}
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bool
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ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
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_mesa_glsl_parse_state *state,
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ast_type_qualifier q)
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{
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ast_type_qualifier ubo_mat_mask;
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ubo_mat_mask.flags.i = 0;
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ubo_mat_mask.flags.q.row_major = 1;
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ubo_mat_mask.flags.q.column_major = 1;
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ast_type_qualifier ubo_layout_mask;
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ubo_layout_mask.flags.i = 0;
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ubo_layout_mask.flags.q.std140 = 1;
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ubo_layout_mask.flags.q.packed = 1;
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ubo_layout_mask.flags.q.shared = 1;
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ast_type_qualifier ubo_binding_mask;
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ubo_binding_mask.flags.i = 0;
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ubo_binding_mask.flags.q.explicit_binding = 1;
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ubo_binding_mask.flags.q.explicit_offset = 1;
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ast_type_qualifier stream_layout_mask;
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stream_layout_mask.flags.i = 0;
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stream_layout_mask.flags.q.stream = 1;
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/* Uniform block layout qualifiers get to overwrite each
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* other (rightmost having priority), while all other
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* qualifiers currently don't allow duplicates.
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*/
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ast_type_qualifier allowed_duplicates_mask;
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allowed_duplicates_mask.flags.i =
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ubo_mat_mask.flags.i |
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ubo_layout_mask.flags.i |
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ubo_binding_mask.flags.i;
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/* Geometry shaders can have several layout qualifiers
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* assigning different stream values.
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*/
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if (state->stage == MESA_SHADER_GEOMETRY)
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allowed_duplicates_mask.flags.i |=
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stream_layout_mask.flags.i;
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if ((this->flags.i & q.flags.i & ~allowed_duplicates_mask.flags.i) != 0) {
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_mesa_glsl_error(loc, state,
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"duplicate layout qualifiers used");
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return false;
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}
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if (q.flags.q.prim_type) {
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if (this->flags.q.prim_type && this->prim_type != q.prim_type) {
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_mesa_glsl_error(loc, state,
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"conflicting primitive type qualifiers used");
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return false;
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}
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this->prim_type = q.prim_type;
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}
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if (q.flags.q.max_vertices) {
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if (this->flags.q.max_vertices && this->max_vertices != q.max_vertices) {
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_mesa_glsl_error(loc, state,
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"geometry shader set conflicting max_vertices "
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"(%d and %d)", this->max_vertices, q.max_vertices);
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return false;
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}
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this->max_vertices = q.max_vertices;
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}
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if (q.flags.q.invocations) {
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if (this->flags.q.invocations && this->invocations != q.invocations) {
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_mesa_glsl_error(loc, state,
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"geometry shader set conflicting invocations "
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"(%d and %d)", this->invocations, q.invocations);
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return false;
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}
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this->invocations = q.invocations;
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}
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if (state->stage == MESA_SHADER_GEOMETRY &&
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state->has_explicit_attrib_stream()) {
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if (q.flags.q.stream && q.stream >= state->ctx->Const.MaxVertexStreams) {
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_mesa_glsl_error(loc, state,
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"`stream' value is larger than MAX_VERTEX_STREAMS - 1 "
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"(%d > %d)",
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q.stream, state->ctx->Const.MaxVertexStreams - 1);
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}
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if (this->flags.q.explicit_stream &&
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this->stream >= state->ctx->Const.MaxVertexStreams) {
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_mesa_glsl_error(loc, state,
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"`stream' value is larger than MAX_VERTEX_STREAMS - 1 "
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"(%d > %d)",
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this->stream, state->ctx->Const.MaxVertexStreams - 1);
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}
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if (!this->flags.q.explicit_stream) {
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if (q.flags.q.stream) {
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this->flags.q.stream = 1;
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this->stream = q.stream;
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} else if (!this->flags.q.stream && this->flags.q.out) {
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/* Assign default global stream value */
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this->flags.q.stream = 1;
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this->stream = state->out_qualifier->stream;
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}
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} else {
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if (q.flags.q.explicit_stream) {
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_mesa_glsl_error(loc, state,
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"duplicate layout `stream' qualifier");
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}
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}
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}
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if ((q.flags.i & ubo_mat_mask.flags.i) != 0)
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this->flags.i &= ~ubo_mat_mask.flags.i;
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if ((q.flags.i & ubo_layout_mask.flags.i) != 0)
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this->flags.i &= ~ubo_layout_mask.flags.i;
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for (int i = 0; i < 3; i++) {
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if (q.flags.q.local_size & (1 << i)) {
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if ((this->flags.q.local_size & (1 << i)) &&
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this->local_size[i] != q.local_size[i]) {
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_mesa_glsl_error(loc, state,
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"compute shader set conflicting values for "
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"local_size_%c (%d and %d)", 'x' + i,
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this->local_size[i], q.local_size[i]);
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return false;
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}
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this->local_size[i] = q.local_size[i];
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}
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}
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this->flags.i |= q.flags.i;
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if (q.flags.q.explicit_location)
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this->location = q.location;
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if (q.flags.q.explicit_index)
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this->index = q.index;
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if (q.flags.q.explicit_binding)
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this->binding = q.binding;
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if (q.flags.q.explicit_offset)
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this->offset = q.offset;
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if (q.precision != ast_precision_none)
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this->precision = q.precision;
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if (q.flags.q.explicit_image_format) {
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this->image_format = q.image_format;
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this->image_base_type = q.image_base_type;
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}
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return true;
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}
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bool
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ast_type_qualifier::merge_in_qualifier(YYLTYPE *loc,
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_mesa_glsl_parse_state *state,
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ast_type_qualifier q,
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ast_node* &node)
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{
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void *mem_ctx = state;
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bool create_gs_ast = false;
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bool create_cs_ast = false;
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ast_type_qualifier valid_in_mask;
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valid_in_mask.flags.i = 0;
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switch (state->stage) {
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case MESA_SHADER_GEOMETRY:
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if (q.flags.q.prim_type) {
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/* Make sure this is a valid input primitive type. */
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switch (q.prim_type) {
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case GL_POINTS:
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case GL_LINES:
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case GL_LINES_ADJACENCY:
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case GL_TRIANGLES:
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case GL_TRIANGLES_ADJACENCY:
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break;
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default:
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_mesa_glsl_error(loc, state,
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"invalid geometry shader input primitive type");
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break;
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}
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}
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create_gs_ast |=
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q.flags.q.prim_type &&
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!state->in_qualifier->flags.q.prim_type;
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valid_in_mask.flags.q.prim_type = 1;
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valid_in_mask.flags.q.invocations = 1;
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break;
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case MESA_SHADER_FRAGMENT:
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if (q.flags.q.early_fragment_tests) {
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state->early_fragment_tests = true;
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} else {
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_mesa_glsl_error(loc, state, "invalid input layout qualifier");
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}
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break;
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case MESA_SHADER_COMPUTE:
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create_cs_ast |=
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q.flags.q.local_size != 0 &&
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state->in_qualifier->flags.q.local_size == 0;
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valid_in_mask.flags.q.local_size = 7;
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break;
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default:
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_mesa_glsl_error(loc, state,
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"input layout qualifiers only valid in "
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"geometry, fragment and compute shaders");
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break;
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}
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/* Generate an error when invalid input layout qualifiers are used. */
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if ((q.flags.i & ~valid_in_mask.flags.i) != 0) {
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_mesa_glsl_error(loc, state,
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"invalid input layout qualifiers used");
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return false;
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}
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/* Input layout qualifiers can be specified multiple
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* times in separate declarations, as long as they match.
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*/
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if (this->flags.q.prim_type) {
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if (q.flags.q.prim_type &&
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this->prim_type != q.prim_type) {
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_mesa_glsl_error(loc, state,
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"conflicting input primitive types specified");
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}
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} else if (q.flags.q.prim_type) {
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state->in_qualifier->flags.q.prim_type = 1;
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state->in_qualifier->prim_type = q.prim_type;
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}
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if (this->flags.q.invocations &&
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q.flags.q.invocations &&
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this->invocations != q.invocations) {
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_mesa_glsl_error(loc, state,
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"conflicting invocations counts specified");
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return false;
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} else if (q.flags.q.invocations) {
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this->flags.q.invocations = 1;
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this->invocations = q.invocations;
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}
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if (create_gs_ast) {
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node = new(mem_ctx) ast_gs_input_layout(*loc, q.prim_type);
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} else if (create_cs_ast) {
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/* Infer a local_size of 1 for every unspecified dimension */
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unsigned local_size[3];
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for (int i = 0; i < 3; i++) {
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if (q.flags.q.local_size & (1 << i))
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local_size[i] = q.local_size[i];
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else
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local_size[i] = 1;
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}
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node = new(mem_ctx) ast_cs_input_layout(*loc, local_size);
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}
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return true;
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}
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