| /* |
| * Copyright © 2010 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 "ast.h" |
| |
| void |
| ast_type_specifier::print(void) const |
| { |
| if (structure) { |
| structure->print(); |
| } else { |
| printf("%s ", type_name); |
| } |
| |
| if (array_specifier) { |
| array_specifier->print(); |
| } |
| } |
| |
| bool |
| ast_fully_specified_type::has_qualifiers() const |
| { |
| return this->qualifier.flags.i != 0; |
| } |
| |
| bool ast_type_qualifier::has_interpolation() const |
| { |
| return this->flags.q.smooth |
| || this->flags.q.flat |
| || this->flags.q.noperspective; |
| } |
| |
| bool |
| ast_type_qualifier::has_layout() const |
| { |
| return this->flags.q.origin_upper_left |
| || this->flags.q.pixel_center_integer |
| || this->flags.q.depth_any |
| || this->flags.q.depth_greater |
| || this->flags.q.depth_less |
| || this->flags.q.depth_unchanged |
| || this->flags.q.std140 |
| || this->flags.q.shared |
| || this->flags.q.column_major |
| || this->flags.q.row_major |
| || this->flags.q.packed |
| || this->flags.q.explicit_location |
| || this->flags.q.explicit_index |
| || this->flags.q.explicit_binding |
| || this->flags.q.explicit_offset; |
| } |
| |
| bool |
| ast_type_qualifier::has_storage() const |
| { |
| return this->flags.q.constant |
| || this->flags.q.attribute |
| || this->flags.q.varying |
| || this->flags.q.in |
| || this->flags.q.out |
| || this->flags.q.uniform; |
| } |
| |
| bool |
| ast_type_qualifier::has_auxiliary_storage() const |
| { |
| return this->flags.q.centroid |
| || this->flags.q.sample; |
| } |
| |
| const char* |
| ast_type_qualifier::interpolation_string() const |
| { |
| if (this->flags.q.smooth) |
| return "smooth"; |
| else if (this->flags.q.flat) |
| return "flat"; |
| else if (this->flags.q.noperspective) |
| return "noperspective"; |
| else |
| return NULL; |
| } |
| |
| bool |
| ast_type_qualifier::merge_qualifier(YYLTYPE *loc, |
| _mesa_glsl_parse_state *state, |
| ast_type_qualifier q) |
| { |
| ast_type_qualifier ubo_mat_mask; |
| ubo_mat_mask.flags.i = 0; |
| ubo_mat_mask.flags.q.row_major = 1; |
| ubo_mat_mask.flags.q.column_major = 1; |
| |
| ast_type_qualifier ubo_layout_mask; |
| ubo_layout_mask.flags.i = 0; |
| ubo_layout_mask.flags.q.std140 = 1; |
| ubo_layout_mask.flags.q.packed = 1; |
| ubo_layout_mask.flags.q.shared = 1; |
| |
| ast_type_qualifier ubo_binding_mask; |
| ubo_binding_mask.flags.i = 0; |
| ubo_binding_mask.flags.q.explicit_binding = 1; |
| ubo_binding_mask.flags.q.explicit_offset = 1; |
| |
| ast_type_qualifier stream_layout_mask; |
| stream_layout_mask.flags.i = 0; |
| stream_layout_mask.flags.q.stream = 1; |
| |
| /* Uniform block layout qualifiers get to overwrite each |
| * other (rightmost having priority), while all other |
| * qualifiers currently don't allow duplicates. |
| */ |
| ast_type_qualifier allowed_duplicates_mask; |
| allowed_duplicates_mask.flags.i = |
| ubo_mat_mask.flags.i | |
| ubo_layout_mask.flags.i | |
| ubo_binding_mask.flags.i; |
| |
| /* Geometry shaders can have several layout qualifiers |
| * assigning different stream values. |
| */ |
| if (state->stage == MESA_SHADER_GEOMETRY) |
| allowed_duplicates_mask.flags.i |= |
| stream_layout_mask.flags.i; |
| |
| if ((this->flags.i & q.flags.i & ~allowed_duplicates_mask.flags.i) != 0) { |
| _mesa_glsl_error(loc, state, |
| "duplicate layout qualifiers used"); |
| return false; |
| } |
| |
| if (q.flags.q.prim_type) { |
| if (this->flags.q.prim_type && this->prim_type != q.prim_type) { |
| _mesa_glsl_error(loc, state, |
| "conflicting primitive type qualifiers used"); |
| return false; |
| } |
| this->prim_type = q.prim_type; |
| } |
| |
| if (q.flags.q.max_vertices) { |
| if (this->flags.q.max_vertices && this->max_vertices != q.max_vertices) { |
| _mesa_glsl_error(loc, state, |
| "geometry shader set conflicting max_vertices " |
| "(%d and %d)", this->max_vertices, q.max_vertices); |
| return false; |
| } |
| this->max_vertices = q.max_vertices; |
| } |
| |
| if (q.flags.q.invocations) { |
| if (this->flags.q.invocations && this->invocations != q.invocations) { |
| _mesa_glsl_error(loc, state, |
| "geometry shader set conflicting invocations " |
| "(%d and %d)", this->invocations, q.invocations); |
| return false; |
| } |
| this->invocations = q.invocations; |
| } |
| |
| if (state->stage == MESA_SHADER_GEOMETRY && |
| state->has_explicit_attrib_stream()) { |
| if (q.flags.q.stream && q.stream >= state->ctx->Const.MaxVertexStreams) { |
| _mesa_glsl_error(loc, state, |
| "`stream' value is larger than MAX_VERTEX_STREAMS - 1 " |
| "(%d > %d)", |
| q.stream, state->ctx->Const.MaxVertexStreams - 1); |
| } |
| if (this->flags.q.explicit_stream && |
| this->stream >= state->ctx->Const.MaxVertexStreams) { |
| _mesa_glsl_error(loc, state, |
| "`stream' value is larger than MAX_VERTEX_STREAMS - 1 " |
| "(%d > %d)", |
| this->stream, state->ctx->Const.MaxVertexStreams - 1); |
| } |
| |
| if (!this->flags.q.explicit_stream) { |
| if (q.flags.q.stream) { |
| this->flags.q.stream = 1; |
| this->stream = q.stream; |
| } else if (!this->flags.q.stream && this->flags.q.out) { |
| /* Assign default global stream value */ |
| this->flags.q.stream = 1; |
| this->stream = state->out_qualifier->stream; |
| } |
| } else { |
| if (q.flags.q.explicit_stream) { |
| _mesa_glsl_error(loc, state, |
| "duplicate layout `stream' qualifier"); |
| } |
| } |
| } |
| |
| if ((q.flags.i & ubo_mat_mask.flags.i) != 0) |
| this->flags.i &= ~ubo_mat_mask.flags.i; |
| if ((q.flags.i & ubo_layout_mask.flags.i) != 0) |
| this->flags.i &= ~ubo_layout_mask.flags.i; |
| |
| for (int i = 0; i < 3; i++) { |
| if (q.flags.q.local_size & (1 << i)) { |
| if ((this->flags.q.local_size & (1 << i)) && |
| this->local_size[i] != q.local_size[i]) { |
| _mesa_glsl_error(loc, state, |
| "compute shader set conflicting values for " |
| "local_size_%c (%d and %d)", 'x' + i, |
| this->local_size[i], q.local_size[i]); |
| return false; |
| } |
| this->local_size[i] = q.local_size[i]; |
| } |
| } |
| |
| this->flags.i |= q.flags.i; |
| |
| if (q.flags.q.explicit_location) |
| this->location = q.location; |
| |
| if (q.flags.q.explicit_index) |
| this->index = q.index; |
| |
| 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; |
| |
| if (q.flags.q.explicit_image_format) { |
| this->image_format = q.image_format; |
| this->image_base_type = q.image_base_type; |
| } |
| |
| return true; |
| } |
| |
| bool |
| ast_type_qualifier::merge_in_qualifier(YYLTYPE *loc, |
| _mesa_glsl_parse_state *state, |
| ast_type_qualifier q, |
| ast_node* &node) |
| { |
| void *mem_ctx = state; |
| bool create_gs_ast = false; |
| bool create_cs_ast = false; |
| ast_type_qualifier valid_in_mask; |
| valid_in_mask.flags.i = 0; |
| |
| switch (state->stage) { |
| case MESA_SHADER_GEOMETRY: |
| if (q.flags.q.prim_type) { |
| /* Make sure this is a valid input primitive type. */ |
| switch (q.prim_type) { |
| case GL_POINTS: |
| case GL_LINES: |
| case GL_LINES_ADJACENCY: |
| case GL_TRIANGLES: |
| case GL_TRIANGLES_ADJACENCY: |
| break; |
| default: |
| _mesa_glsl_error(loc, state, |
| "invalid geometry shader input primitive type"); |
| break; |
| } |
| } |
| |
| create_gs_ast |= |
| q.flags.q.prim_type && |
| !state->in_qualifier->flags.q.prim_type; |
| |
| valid_in_mask.flags.q.prim_type = 1; |
| valid_in_mask.flags.q.invocations = 1; |
| break; |
| case MESA_SHADER_FRAGMENT: |
| if (q.flags.q.early_fragment_tests) { |
| state->early_fragment_tests = true; |
| } else { |
| _mesa_glsl_error(loc, state, "invalid input layout qualifier"); |
| } |
| break; |
| case MESA_SHADER_COMPUTE: |
| create_cs_ast |= |
| q.flags.q.local_size != 0 && |
| state->in_qualifier->flags.q.local_size == 0; |
| |
| valid_in_mask.flags.q.local_size = 7; |
| break; |
| default: |
| _mesa_glsl_error(loc, state, |
| "input layout qualifiers only valid in " |
| "geometry, fragment and compute shaders"); |
| break; |
| } |
| |
| /* Generate an error when invalid input layout qualifiers are used. */ |
| if ((q.flags.i & ~valid_in_mask.flags.i) != 0) { |
| _mesa_glsl_error(loc, state, |
| "invalid input layout qualifiers used"); |
| return false; |
| } |
| |
| /* Input layout qualifiers can be specified multiple |
| * times in separate declarations, as long as they match. |
| */ |
| if (this->flags.q.prim_type) { |
| if (q.flags.q.prim_type && |
| this->prim_type != q.prim_type) { |
| _mesa_glsl_error(loc, state, |
| "conflicting input primitive types specified"); |
| } |
| } else if (q.flags.q.prim_type) { |
| state->in_qualifier->flags.q.prim_type = 1; |
| state->in_qualifier->prim_type = q.prim_type; |
| } |
| |
| if (this->flags.q.invocations && |
| q.flags.q.invocations && |
| this->invocations != q.invocations) { |
| _mesa_glsl_error(loc, state, |
| "conflicting invocations counts specified"); |
| return false; |
| } else if (q.flags.q.invocations) { |
| this->flags.q.invocations = 1; |
| this->invocations = q.invocations; |
| } |
| |
| if (create_gs_ast) { |
| node = new(mem_ctx) ast_gs_input_layout(*loc, q.prim_type); |
| } else if (create_cs_ast) { |
| /* Infer a local_size of 1 for every unspecified dimension */ |
| unsigned local_size[3]; |
| for (int i = 0; i < 3; i++) { |
| if (q.flags.q.local_size & (1 << i)) |
| local_size[i] = q.local_size[i]; |
| else |
| local_size[i] = 1; |
| } |
| node = new(mem_ctx) ast_cs_input_layout(*loc, local_size); |
| } |
| |
| return true; |
| } |