/* * HLSL parser * * Copyright 2008 Stefan Dösinger * Copyright 2012 Matteo Bruni for CodeWeavers * Copyright 2019-2020 Zebediah Figura for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ %code requires { #include "hlsl.h" #include #define HLSL_YYLTYPE struct vkd3d_shader_location struct parse_parameter { struct hlsl_type *type; const char *name; const char *semantic; const struct hlsl_reg_reservation *reg_reservation; unsigned int modifiers; }; struct parse_colon_attribute { const char *semantic; struct hlsl_reg_reservation *reg_reservation; }; struct parse_initializer { struct hlsl_ir_node **args; unsigned int args_count; struct list *instrs; }; struct parse_variable_def { struct list entry; struct vkd3d_shader_location loc; char *name; uint32_t array_size; const char *semantic; struct hlsl_reg_reservation *reg_reservation; struct parse_initializer initializer; }; struct parse_function { char *name; struct hlsl_ir_function_decl *decl; }; struct parse_if_body { struct list *then_instrs; struct list *else_instrs; }; enum parse_unary_op { UNARY_OP_PLUS, UNARY_OP_MINUS, UNARY_OP_LOGICNOT, UNARY_OP_BITNOT, }; enum parse_assign_op { ASSIGN_OP_ASSIGN, ASSIGN_OP_ADD, ASSIGN_OP_SUB, ASSIGN_OP_MUL, ASSIGN_OP_DIV, ASSIGN_OP_MOD, ASSIGN_OP_LSHIFT, ASSIGN_OP_RSHIFT, ASSIGN_OP_AND, ASSIGN_OP_OR, ASSIGN_OP_XOR, }; } %code provides { int yylex(HLSL_YYSTYPE *yylval_param, HLSL_YYLTYPE *yylloc_param, void *yyscanner); } %code { #define YYLLOC_DEFAULT(cur, rhs, n) (cur) = YYRHSLOC(rhs, !!n) static void yyerror(YYLTYPE *loc, void *scanner, struct hlsl_ctx *ctx, const char *s) { hlsl_error(ctx, *loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "%s", s); } static struct hlsl_ir_node *node_from_list(struct list *list) { return LIST_ENTRY(list_tail(list), struct hlsl_ir_node, entry); } static struct list *make_empty_list(void) { struct list *list; if ((list = vkd3d_malloc(sizeof(*list)))) list_init(list); return list; } static void check_invalid_matrix_modifiers(struct hlsl_ctx *ctx, DWORD modifiers, struct vkd3d_shader_location loc) { if (modifiers & HLSL_MODIFIERS_MAJORITY_MASK) hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "'row_major' and 'column_major' modifiers are only allowed for matrices."); } static bool convertible_data_type(struct hlsl_type *type) { return type->type != HLSL_CLASS_OBJECT; } static bool compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2) { if (!convertible_data_type(t1) || !convertible_data_type(t2)) return false; if (t1->type <= HLSL_CLASS_LAST_NUMERIC) { /* Scalar vars can be cast to pretty much everything */ if (t1->dimx == 1 && t1->dimy == 1) return true; if (t1->type == HLSL_CLASS_VECTOR && t2->type == HLSL_CLASS_VECTOR) return t1->dimx >= t2->dimx; } /* The other way around is true too i.e. whatever to scalar */ if (t2->type <= HLSL_CLASS_LAST_NUMERIC && t2->dimx == 1 && t2->dimy == 1) return true; if (t1->type == HLSL_CLASS_ARRAY) { if (hlsl_type_compare(t1->e.array.type, t2)) /* e.g. float4[3] to float4 is allowed */ return true; if (t2->type == HLSL_CLASS_ARRAY || t2->type == HLSL_CLASS_STRUCT) return hlsl_type_component_count(t1) >= hlsl_type_component_count(t2); else return hlsl_type_component_count(t1) == hlsl_type_component_count(t2); } if (t1->type == HLSL_CLASS_STRUCT) return hlsl_type_component_count(t1) >= hlsl_type_component_count(t2); if (t2->type == HLSL_CLASS_ARRAY || t2->type == HLSL_CLASS_STRUCT) return hlsl_type_component_count(t1) == hlsl_type_component_count(t2); if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX) { if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX && t1->dimx >= t2->dimx && t1->dimy >= t2->dimy) return true; /* Matrix-vector conversion is apparently allowed if they have the same components count */ if ((t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR) && hlsl_type_component_count(t1) == hlsl_type_component_count(t2)) return true; return false; } if (hlsl_type_component_count(t1) >= hlsl_type_component_count(t2)) return true; return false; } static bool implicit_compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2) { if (!convertible_data_type(t1) || !convertible_data_type(t2)) return false; if (t1->type <= HLSL_CLASS_LAST_NUMERIC) { /* Scalar vars can be converted to any other numeric data type */ if (t1->dimx == 1 && t1->dimy == 1 && t2->type <= HLSL_CLASS_LAST_NUMERIC) return true; /* The other way around is true too */ if (t2->dimx == 1 && t2->dimy == 1 && t2->type <= HLSL_CLASS_LAST_NUMERIC) return true; } if (t1->type == HLSL_CLASS_ARRAY && t2->type == HLSL_CLASS_ARRAY) { return hlsl_type_component_count(t1) == hlsl_type_component_count(t2); } if ((t1->type == HLSL_CLASS_ARRAY && t2->type <= HLSL_CLASS_LAST_NUMERIC) || (t1->type <= HLSL_CLASS_LAST_NUMERIC && t2->type == HLSL_CLASS_ARRAY)) { /* e.g. float4[3] to float4 is allowed */ if (t1->type == HLSL_CLASS_ARRAY && hlsl_type_compare(t1->e.array.type, t2)) return true; if (hlsl_type_component_count(t1) == hlsl_type_component_count(t2)) return true; return false; } if (t1->type <= HLSL_CLASS_VECTOR && t2->type <= HLSL_CLASS_VECTOR) { if (t1->dimx >= t2->dimx) return true; return false; } if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX) { if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX && t1->dimx >= t2->dimx && t1->dimy >= t2->dimy) return true; /* Matrix-vector conversion is apparently allowed if they have the same components count */ if ((t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR) && hlsl_type_component_count(t1) == hlsl_type_component_count(t2)) return true; return false; } if (t1->type == HLSL_CLASS_STRUCT && t2->type == HLSL_CLASS_STRUCT) return hlsl_type_compare(t1, t2); return false; } static struct hlsl_ir_node *add_implicit_conversion(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *node, struct hlsl_type *dst_type, struct vkd3d_shader_location *loc) { struct hlsl_type *src_type = node->data_type; struct hlsl_ir_expr *cast; if (hlsl_type_compare(src_type, dst_type)) return node; if (!implicit_compatible_data_types(src_type, dst_type)) { struct vkd3d_string_buffer *src_string, *dst_string; src_string = hlsl_type_to_string(&ctx->string_buffers, src_type); dst_string = hlsl_type_to_string(&ctx->string_buffers, dst_type); if (src_string && dst_string) hlsl_error(ctx, *loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Can't implicitly convert from %s to %s.", src_string->buffer, dst_string->buffer); vkd3d_string_buffer_release(&ctx->string_buffers, src_string); vkd3d_string_buffer_release(&ctx->string_buffers, dst_string); return NULL; } if (dst_type->dimx * dst_type->dimy < src_type->dimx * src_type->dimy) hlsl_warning(ctx, *loc, VKD3D_SHADER_WARNING_HLSL_IMPLICIT_TRUNCATION, "Implicit truncation of %s type.", src_type->type == HLSL_CLASS_VECTOR ? "vector" : "matrix"); if (!(cast = hlsl_new_cast(node, dst_type, loc))) return NULL; list_add_tail(instrs, &cast->node.entry); return &cast->node; } static bool declare_variable(struct hlsl_ctx *ctx, struct hlsl_ir_var *decl, bool local) { bool ret; if (decl->data_type->type != HLSL_CLASS_MATRIX) check_invalid_matrix_modifiers(ctx, decl->modifiers, decl->loc); if (local) { DWORD invalid = decl->modifiers & (HLSL_STORAGE_EXTERN | HLSL_STORAGE_SHARED | HLSL_STORAGE_GROUPSHARED | HLSL_STORAGE_UNIFORM); if (invalid) { struct vkd3d_string_buffer *string; if ((string = hlsl_modifiers_to_string(&ctx->string_buffers, invalid))) hlsl_error(ctx, decl->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifiers '%s' are not allowed on local variables.", string->buffer); vkd3d_string_buffer_release(&ctx->string_buffers, string); } if (decl->semantic) { hlsl_error(ctx, decl->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SEMANTIC, "Semantics are not allowed on local variables."); return false; } } else { if (hlsl_get_function(ctx, decl->name)) { hlsl_error(ctx, decl->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Variable '%s' is already defined as a function.", decl->name); return false; } } ret = hlsl_add_var(ctx, decl, local); if (!ret) { struct hlsl_ir_var *old = hlsl_get_var(ctx->cur_scope, decl->name); hlsl_error(ctx, decl->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Variable \"%s\" was already declared in this scope.", decl->name); hlsl_note(ctx, old->loc, VKD3D_SHADER_LOG_ERROR, "\"%s\" was previously declared here.", old->name); return false; } return true; } static DWORD add_modifiers(struct hlsl_ctx *ctx, DWORD modifiers, DWORD mod, const struct vkd3d_shader_location loc) { if (modifiers & mod) { struct vkd3d_string_buffer *string; if ((string = hlsl_modifiers_to_string(&ctx->string_buffers, mod))) hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifier '%s' was already specified.", string->buffer); vkd3d_string_buffer_release(&ctx->string_buffers, string); return modifiers; } if ((mod & HLSL_MODIFIERS_MAJORITY_MASK) && (modifiers & HLSL_MODIFIERS_MAJORITY_MASK)) { hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "'row_major' and 'column_major' modifiers are mutually exclusive."); return modifiers; } return modifiers | mod; } static bool append_conditional_break(struct list *cond_list) { struct hlsl_ir_node *condition, *not; struct hlsl_ir_jump *jump; struct hlsl_ir_if *iff; /* E.g. "for (i = 0; ; ++i)". */ if (!list_count(cond_list)) return true; condition = node_from_list(cond_list); if (!(not = hlsl_new_unary_expr(HLSL_IR_UNOP_LOGIC_NOT, condition, condition->loc))) return false; list_add_tail(cond_list, ¬->entry); if (!(iff = hlsl_new_if(not, condition->loc))) return false; list_add_tail(cond_list, &iff->node.entry); if (!(jump = hlsl_new_jump(HLSL_IR_JUMP_BREAK, condition->loc))) return false; list_add_head(&iff->then_instrs, &jump->node.entry); return true; } enum loop_type { LOOP_FOR, LOOP_WHILE, LOOP_DO_WHILE }; static struct list *create_loop(enum loop_type type, struct list *init, struct list *cond, struct list *iter, struct list *body, struct vkd3d_shader_location loc) { struct list *list = NULL; struct hlsl_ir_loop *loop = NULL; struct hlsl_ir_if *cond_jump = NULL; if (!(list = make_empty_list())) goto oom; if (init) list_move_head(list, init); if (!(loop = hlsl_new_loop(loc))) goto oom; list_add_tail(list, &loop->node.entry); if (!append_conditional_break(cond)) goto oom; if (type != LOOP_DO_WHILE) list_move_tail(&loop->body, cond); list_move_tail(&loop->body, body); if (iter) list_move_tail(&loop->body, iter); if (type == LOOP_DO_WHILE) list_move_tail(&loop->body, cond); vkd3d_free(init); vkd3d_free(cond); vkd3d_free(body); return list; oom: vkd3d_free(loop); vkd3d_free(cond_jump); vkd3d_free(list); hlsl_free_instr_list(init); hlsl_free_instr_list(cond); hlsl_free_instr_list(iter); hlsl_free_instr_list(body); return NULL; } static unsigned int initializer_size(const struct parse_initializer *initializer) { unsigned int count = 0, i; for (i = 0; i < initializer->args_count; ++i) { count += hlsl_type_component_count(initializer->args[i]->data_type); } return count; } static void free_parse_initializer(struct parse_initializer *initializer) { hlsl_free_instr_list(initializer->instrs); vkd3d_free(initializer->args); } static struct hlsl_ir_swizzle *get_swizzle(struct hlsl_ctx *ctx, struct hlsl_ir_node *value, const char *swizzle, struct vkd3d_shader_location *loc) { unsigned int len = strlen(swizzle), component = 0; unsigned int i, set, swiz = 0; bool valid; if (value->data_type->type == HLSL_CLASS_MATRIX) { /* Matrix swizzle */ bool m_swizzle; unsigned int inc, x, y; if (len < 3 || swizzle[0] != '_') return NULL; m_swizzle = swizzle[1] == 'm'; inc = m_swizzle ? 4 : 3; if (len % inc || len > inc * 4) return NULL; for (i = 0; i < len; i += inc) { if (swizzle[i] != '_') return NULL; if (m_swizzle) { if (swizzle[i + 1] != 'm') return NULL; y = swizzle[i + 2] - '0'; x = swizzle[i + 3] - '0'; } else { y = swizzle[i + 1] - '1'; x = swizzle[i + 2] - '1'; } if (x >= value->data_type->dimx || y >= value->data_type->dimy) return NULL; swiz |= (y << 4 | x) << component * 8; component++; } return hlsl_new_swizzle(ctx, swiz, component, value, loc); } /* Vector swizzle */ if (len > 4) return NULL; for (set = 0; set < 2; ++set) { valid = true; component = 0; for (i = 0; i < len; ++i) { char c[2][4] = {{'x', 'y', 'z', 'w'}, {'r', 'g', 'b', 'a'}}; unsigned int s = 0; for (s = 0; s < 4; ++s) { if (swizzle[i] == c[set][s]) break; } if (s == 4) { valid = false; break; } if (s >= value->data_type->dimx) return NULL; swiz |= s << component * 2; component++; } if (valid) return hlsl_new_swizzle(ctx, swiz, component, value, loc); } return NULL; } static struct hlsl_ir_jump *add_return(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *return_value, struct vkd3d_shader_location loc) { struct hlsl_type *return_type = ctx->cur_function->return_type; struct hlsl_ir_jump *jump; if (return_value) { struct hlsl_ir_assignment *assignment; if (!(return_value = add_implicit_conversion(ctx, instrs, return_value, return_type, &loc))) return NULL; if (!(assignment = hlsl_new_simple_assignment(ctx->cur_function->return_var, return_value))) return NULL; list_add_after(&return_value->entry, &assignment->node.entry); } else if (!hlsl_type_is_void(return_type)) { hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_RETURN, "Non-void function must return a value."); return NULL; } if (!(jump = hlsl_new_jump(HLSL_IR_JUMP_RETURN, loc))) return NULL; list_add_tail(instrs, &jump->node.entry); return jump; } static struct hlsl_ir_load *add_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *var_node, struct hlsl_ir_node *offset, struct hlsl_type *data_type, const struct vkd3d_shader_location loc) { struct hlsl_ir_node *add = NULL; struct hlsl_ir_load *load; struct hlsl_ir_var *var; if (var_node->type == HLSL_IR_LOAD) { const struct hlsl_deref *src = &hlsl_ir_load(var_node)->src; var = src->var; if (src->offset.node) { if (!(add = hlsl_new_binary_expr(HLSL_IR_BINOP_ADD, src->offset.node, offset))) return NULL; list_add_tail(instrs, &add->entry); offset = add; } } else { struct hlsl_ir_assignment *assign; char name[27]; sprintf(name, "", var_node); if (!(var = hlsl_new_synthetic_var(ctx, name, var_node->data_type, var_node->loc))) return NULL; if (!(assign = hlsl_new_simple_assignment(var, var_node))) return NULL; list_add_tail(instrs, &assign->node.entry); } if (!(load = vkd3d_malloc(sizeof(*load)))) return NULL; init_node(&load->node, HLSL_IR_LOAD, data_type, loc); load->src.var = var; hlsl_src_from_node(&load->src.offset, offset); list_add_tail(instrs, &load->node.entry); return load; } static struct hlsl_ir_load *add_record_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *record, const struct hlsl_struct_field *field, const struct vkd3d_shader_location loc) { struct hlsl_ir_constant *c; if (!(c = hlsl_new_uint_constant(ctx, field->reg_offset * 4, loc))) return NULL; list_add_tail(instrs, &c->node.entry); return add_load(ctx, instrs, record, &c->node, field->type, loc); } static struct hlsl_ir_load *add_array_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *array, struct hlsl_ir_node *index, const struct vkd3d_shader_location loc) { const struct hlsl_type *expr_type = array->data_type; struct hlsl_type *data_type; struct hlsl_ir_constant *c; struct hlsl_ir_node *mul; if (expr_type->type == HLSL_CLASS_ARRAY) { data_type = expr_type->e.array.type; } else if (expr_type->type == HLSL_CLASS_MATRIX || expr_type->type == HLSL_CLASS_VECTOR) { /* This needs to be lowered now, while we still have type information. */ FIXME("Index of matrix or vector type.\n"); return NULL; } else { if (expr_type->type == HLSL_CLASS_SCALAR) hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_INDEX, "Scalar expressions cannot be array-indexed."); else hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_INDEX, "Expression cannot be array-indexed."); return NULL; } if (!(c = hlsl_new_uint_constant(ctx, data_type->reg_size * 4, loc))) return NULL; list_add_tail(instrs, &c->node.entry); if (!(mul = hlsl_new_binary_expr(HLSL_IR_BINOP_MUL, index, &c->node))) return NULL; list_add_tail(instrs, &mul->entry); index = mul; return add_load(ctx, instrs, array, index, data_type, loc); } static bool add_struct_field(struct list *fields, struct hlsl_struct_field *field) { struct hlsl_struct_field *f; LIST_FOR_EACH_ENTRY(f, fields, struct hlsl_struct_field, entry) { if (!strcmp(f->name, field->name)) return false; } list_add_tail(fields, &field->entry); return true; } bool hlsl_type_is_row_major(const struct hlsl_type *type) { /* Default to column-major if the majority isn't explicitly set, which can * happen for anonymous nodes. */ return !!(type->modifiers & HLSL_MODIFIER_ROW_MAJOR); } static struct hlsl_type *apply_type_modifiers(struct hlsl_ctx *ctx, struct hlsl_type *type, unsigned int *modifiers, struct vkd3d_shader_location loc) { unsigned int default_majority = 0; struct hlsl_type *new_type; /* This function is only used for declarations (i.e. variables and struct * fields), which should inherit the matrix majority. We only explicitly set * the default majority for declarations—typedefs depend on this—but we * want to always set it, so that an hlsl_type object is never used to * represent two different majorities (and thus can be used to store its * register size, etc.) */ if (!(*modifiers & HLSL_MODIFIERS_MAJORITY_MASK) && !(type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK) && type->type == HLSL_CLASS_MATRIX) { if (ctx->matrix_majority == HLSL_COLUMN_MAJOR) default_majority = HLSL_MODIFIER_COLUMN_MAJOR; else default_majority = HLSL_MODIFIER_ROW_MAJOR; } if (!default_majority && !(*modifiers & HLSL_TYPE_MODIFIERS_MASK)) return type; if (!(new_type = hlsl_type_clone(ctx, type, default_majority))) return NULL; new_type->modifiers = add_modifiers(ctx, new_type->modifiers, *modifiers, loc); *modifiers &= ~HLSL_TYPE_MODIFIERS_MASK; if (new_type->type == HLSL_CLASS_MATRIX) new_type->reg_size = hlsl_type_is_row_major(new_type) ? new_type->dimy : new_type->dimx; return new_type; } static struct list *gen_struct_fields(struct hlsl_ctx *ctx, struct hlsl_type *type, DWORD modifiers, struct list *fields) { struct parse_variable_def *v, *v_next; struct hlsl_struct_field *field; struct list *list; if (type->type == HLSL_CLASS_MATRIX) assert(type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK); if (!(list = make_empty_list())) return NULL; LIST_FOR_EACH_ENTRY_SAFE(v, v_next, fields, struct parse_variable_def, entry) { if (!(field = vkd3d_calloc(1, sizeof(*field)))) { vkd3d_free(v); return list; } if (v->array_size) field->type = hlsl_new_array_type(ctx, type, v->array_size); else field->type = type; field->name = v->name; field->modifiers = modifiers; field->semantic = v->semantic; if (v->initializer.args_count) { hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "Illegal initializer on a struct field.\n"); free_parse_initializer(&v->initializer); } list_add_tail(list, &field->entry); vkd3d_free(v); } vkd3d_free(fields); return list; } static bool add_typedef(struct hlsl_ctx *ctx, DWORD modifiers, struct hlsl_type *orig_type, struct list *list) { struct parse_variable_def *v, *v_next; struct hlsl_type *type; bool ret; LIST_FOR_EACH_ENTRY_SAFE(v, v_next, list, struct parse_variable_def, entry) { if (v->array_size) type = hlsl_new_array_type(ctx, orig_type, v->array_size); else type = hlsl_type_clone(ctx, orig_type, 0); if (!type) return false; vkd3d_free((void *)type->name); type->name = v->name; type->modifiers |= modifiers; if (type->type != HLSL_CLASS_MATRIX) check_invalid_matrix_modifiers(ctx, type->modifiers, v->loc); else type->reg_size = hlsl_type_is_row_major(type) ? type->dimy : type->dimx; if ((type->modifiers & HLSL_MODIFIER_COLUMN_MAJOR) && (type->modifiers & HLSL_MODIFIER_ROW_MAJOR)) hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "'row_major' and 'column_major' modifiers are mutually exclusive."); ret = hlsl_scope_add_type(ctx->cur_scope, type); if (!ret) hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Type '%s' is already defined.", v->name); vkd3d_free(v); } vkd3d_free(list); return true; } static bool add_func_parameter(struct hlsl_ctx *ctx, struct list *list, struct parse_parameter *param, const struct vkd3d_shader_location loc) { struct hlsl_ir_var *var; if (param->type->type == HLSL_CLASS_MATRIX) assert(param->type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK); if (!(var = hlsl_new_var(param->name, param->type, loc, param->semantic, param->modifiers, param->reg_reservation))) return false; if (!hlsl_add_var(ctx, var, false)) { hlsl_free_var(var); return false; } list_add_tail(list, &var->param_entry); return true; } static struct hlsl_reg_reservation *parse_reg_reservation(const char *reg_string) { enum vkd3d_shader_register_type type; struct hlsl_reg_reservation *reg_res; DWORD regnum = 0; switch (reg_string[0]) { case 'c': type = VKD3DSPR_CONST; break; case 'i': type = VKD3DSPR_CONSTINT; break; case 'b': type = VKD3DSPR_CONSTBOOL; break; case 's': type = VKD3DSPR_SAMPLER; break; default: FIXME("Unsupported register type.\n"); return NULL; } if (!sscanf(reg_string + 1, "%u", ®num)) { FIXME("Unsupported register reservation syntax.\n"); return NULL; } if (!(reg_res = vkd3d_malloc(sizeof(*reg_res)))) return NULL; reg_res->type = type; reg_res->regnum = regnum; return reg_res; } static const struct hlsl_ir_function_decl *get_overloaded_func(struct rb_tree *funcs, char *name, struct list *params, bool exact_signature) { struct hlsl_ir_function *func; struct rb_entry *entry; entry = rb_get(funcs, name); if (entry) { func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry); entry = rb_get(&func->overloads, params); if (!entry) { if (!exact_signature) FIXME("No exact match, search for a compatible overloaded function (if any).\n"); return NULL; } return RB_ENTRY_VALUE(entry, struct hlsl_ir_function_decl, entry); } return NULL; } static struct hlsl_ir_function_decl *get_func_entry(struct hlsl_ctx *ctx, const char *name) { struct hlsl_ir_function_decl *decl; struct hlsl_ir_function *func; struct rb_entry *entry; if ((entry = rb_get(&ctx->functions, name))) { func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry); RB_FOR_EACH_ENTRY(decl, &func->overloads, struct hlsl_ir_function_decl, entry) return decl; } return NULL; } static struct list *make_list(struct hlsl_ir_node *node) { struct list *list; if (!(list = make_empty_list())) { hlsl_free_instr(node); return NULL; } list_add_tail(list, &node->entry); return list; } static unsigned int evaluate_array_dimension(struct hlsl_ir_node *node) { if (node->data_type->type != HLSL_CLASS_SCALAR) return 0; switch (node->type) { case HLSL_IR_CONSTANT: { struct hlsl_ir_constant *constant = hlsl_ir_constant(node); switch (constant->node.data_type->base_type) { case HLSL_TYPE_UINT: return constant->value.u[0]; case HLSL_TYPE_INT: return constant->value.i[0]; case HLSL_TYPE_FLOAT: case HLSL_TYPE_HALF: return constant->value.f[0]; case HLSL_TYPE_DOUBLE: return constant->value.d[0]; case HLSL_TYPE_BOOL: return constant->value.b[0]; default: assert(0); return 0; } } case HLSL_IR_EXPR: case HLSL_IR_LOAD: case HLSL_IR_SWIZZLE: FIXME("Unhandled type %s.\n", hlsl_node_type_to_string(node->type)); return 0; case HLSL_IR_ASSIGNMENT: default: WARN("Invalid node type %s.\n", hlsl_node_type_to_string(node->type)); return 0; } } static bool expr_compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2) { if (t1->base_type > HLSL_TYPE_LAST_SCALAR || t2->base_type > HLSL_TYPE_LAST_SCALAR) return false; /* Scalar vars can be converted to pretty much everything */ if ((t1->dimx == 1 && t1->dimy == 1) || (t2->dimx == 1 && t2->dimy == 1)) return true; if (t1->type == HLSL_CLASS_VECTOR && t2->type == HLSL_CLASS_VECTOR) return true; if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX) { /* Matrix-vector conversion is apparently allowed if either they have the same components count or the matrix is nx1 or 1xn */ if (t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR) { if (hlsl_type_component_count(t1) == hlsl_type_component_count(t2)) return true; return (t1->type == HLSL_CLASS_MATRIX && (t1->dimx == 1 || t1->dimy == 1)) || (t2->type == HLSL_CLASS_MATRIX && (t2->dimx == 1 || t2->dimy == 1)); } /* Both matrices */ if ((t1->dimx >= t2->dimx && t1->dimy >= t2->dimy) || (t1->dimx <= t2->dimx && t1->dimy <= t2->dimy)) return true; } return false; } static enum hlsl_base_type expr_common_base_type(enum hlsl_base_type t1, enum hlsl_base_type t2) { static const enum hlsl_base_type types[] = { HLSL_TYPE_BOOL, HLSL_TYPE_INT, HLSL_TYPE_UINT, HLSL_TYPE_HALF, HLSL_TYPE_FLOAT, HLSL_TYPE_DOUBLE, }; int t1_idx = -1, t2_idx = -1, i; for (i = 0; i < ARRAY_SIZE(types); ++i) { /* Always convert away from HLSL_TYPE_HALF */ if (t1 == types[i]) t1_idx = t1 == HLSL_TYPE_HALF ? i + 1 : i; if (t2 == types[i]) t2_idx = t2 == HLSL_TYPE_HALF ? i + 1 : i; if (t1_idx != -1 && t2_idx != -1) break; } if (t1_idx == -1 || t2_idx == -1) { FIXME("Unexpected base type.\n"); return HLSL_TYPE_FLOAT; } return t1_idx >= t2_idx ? t1 : t2; } static struct hlsl_type *expr_common_type(struct hlsl_ctx *ctx, struct hlsl_type *t1, struct hlsl_type *t2, struct vkd3d_shader_location *loc) { enum hlsl_type_class type; enum hlsl_base_type base; unsigned int dimx, dimy; if (t1->type > HLSL_CLASS_LAST_NUMERIC || t2->type > HLSL_CLASS_LAST_NUMERIC) { hlsl_error(ctx, *loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Non-numeric types cannot be used in expressions."); return NULL; } if (hlsl_type_compare(t1, t2)) return t1; if (!expr_compatible_data_types(t1, t2)) { hlsl_error(ctx, *loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Expression data types are incompatible."); return NULL; } if (t1->base_type == t2->base_type) base = t1->base_type; else base = expr_common_base_type(t1->base_type, t2->base_type); if (t1->dimx == 1 && t1->dimy == 1) { type = t2->type; dimx = t2->dimx; dimy = t2->dimy; } else if (t2->dimx == 1 && t2->dimy == 1) { type = t1->type; dimx = t1->dimx; dimy = t1->dimy; } else if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX) { type = HLSL_CLASS_MATRIX; dimx = min(t1->dimx, t2->dimx); dimy = min(t1->dimy, t2->dimy); } else { /* Two vectors or a vector and a matrix (matrix must be 1xn or nx1) */ unsigned int max_dim_1, max_dim_2; max_dim_1 = max(t1->dimx, t1->dimy); max_dim_2 = max(t2->dimx, t2->dimy); if (t1->dimx * t1->dimy == t2->dimx * t2->dimy) { type = HLSL_CLASS_VECTOR; dimx = max(t1->dimx, t2->dimx); dimy = 1; } else if (max_dim_1 <= max_dim_2) { type = t1->type; if (type == HLSL_CLASS_VECTOR) { dimx = max_dim_1; dimy = 1; } else { dimx = t1->dimx; dimy = t1->dimy; } } else { type = t2->type; if (type == HLSL_CLASS_VECTOR) { dimx = max_dim_2; dimy = 1; } else { dimx = t2->dimx; dimy = t2->dimy; } } } if (type == HLSL_CLASS_SCALAR) return ctx->builtin_types.scalar[base]; if (type == HLSL_CLASS_VECTOR) return ctx->builtin_types.vector[base][dimx - 1]; return hlsl_new_type(ctx, NULL, type, base, dimx, dimy); } static struct hlsl_ir_expr *add_expr(struct hlsl_ctx *ctx, struct list *instrs, enum hlsl_ir_expr_op op, struct hlsl_ir_node *operands[3], struct vkd3d_shader_location *loc) { struct hlsl_ir_expr *expr; struct hlsl_type *type; unsigned int i; type = operands[0]->data_type; for (i = 1; i <= 2; ++i) { if (!operands[i]) break; type = expr_common_type(ctx, type, operands[i]->data_type, loc); if (!type) return NULL; } for (i = 0; i <= 2; ++i) { struct hlsl_ir_expr *cast; if (!operands[i]) break; if (hlsl_type_compare(operands[i]->data_type, type)) continue; if (operands[i]->data_type->dimx * operands[i]->data_type->dimy != 1 && operands[i]->data_type->dimx * operands[i]->data_type->dimy != type->dimx * type->dimy) hlsl_warning(ctx, operands[i]->loc, VKD3D_SHADER_WARNING_HLSL_IMPLICIT_TRUNCATION, "Implicit truncation of %s type.", operands[i]->data_type->type == HLSL_CLASS_VECTOR ? "vector" : "matrix"); if (!(cast = hlsl_new_cast(operands[i], type, &operands[i]->loc))) return NULL; list_add_after(&operands[i]->entry, &cast->node.entry); operands[i] = &cast->node; } if (!(expr = vkd3d_calloc(1, sizeof(*expr)))) return NULL; init_node(&expr->node, HLSL_IR_EXPR, type, *loc); expr->op = op; for (i = 0; i <= 2; ++i) hlsl_src_from_node(&expr->operands[i], operands[i]); list_add_tail(instrs, &expr->node.entry); return expr; } static struct list *append_unop(struct list *list, struct hlsl_ir_node *node) { list_add_tail(list, &node->entry); return list; } static struct list *add_binary_expr(struct hlsl_ctx *ctx, struct list *list1, struct list *list2, enum hlsl_ir_expr_op op, struct vkd3d_shader_location loc) { struct hlsl_ir_node *args[3] = {node_from_list(list1), node_from_list(list2)}; list_move_tail(list1, list2); vkd3d_free(list2); add_expr(ctx, list1, op, args, &loc); return list1; } static enum hlsl_ir_expr_op op_from_assignment(enum parse_assign_op op) { static const enum hlsl_ir_expr_op ops[] = { 0, HLSL_IR_BINOP_ADD, HLSL_IR_BINOP_SUB, HLSL_IR_BINOP_MUL, HLSL_IR_BINOP_DIV, HLSL_IR_BINOP_MOD, HLSL_IR_BINOP_LSHIFT, HLSL_IR_BINOP_RSHIFT, HLSL_IR_BINOP_BIT_AND, HLSL_IR_BINOP_BIT_OR, HLSL_IR_BINOP_BIT_XOR, }; return ops[op]; } static bool invert_swizzle(unsigned int *swizzle, unsigned int *writemask, unsigned int *ret_width) { unsigned int i, j, bit = 0, inverted = 0, width, new_writemask = 0, new_swizzle = 0; /* Apply the writemask to the swizzle to get a new writemask and swizzle. */ for (i = 0; i < 4; ++i) { if (*writemask & (1 << i)) { unsigned int s = (*swizzle >> (i * 2)) & 3; new_swizzle |= s << (bit++ * 2); if (new_writemask & (1 << s)) return false; new_writemask |= 1 << s; } } width = bit; /* Invert the swizzle. */ bit = 0; for (i = 0; i < 4; ++i) { for (j = 0; j < width; ++j) { unsigned int s = (new_swizzle >> (j * 2)) & 3; if (s == i) inverted |= j << (bit++ * 2); } } *swizzle = inverted; *writemask = new_writemask; *ret_width = width; return true; } static struct hlsl_ir_node *add_assignment(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *lhs, enum parse_assign_op assign_op, struct hlsl_ir_node *rhs) { struct hlsl_ir_assignment *assign; struct hlsl_type *lhs_type; DWORD writemask = 0; lhs_type = lhs->data_type; if (lhs_type->type <= HLSL_CLASS_LAST_NUMERIC) { writemask = (1 << lhs_type->dimx) - 1; if (!(rhs = add_implicit_conversion(ctx, instrs, rhs, lhs_type, &rhs->loc))) return NULL; } if (!(assign = vkd3d_malloc(sizeof(*assign)))) return NULL; while (lhs->type != HLSL_IR_LOAD) { struct hlsl_ir_node *lhs_inner; if (lhs->type == HLSL_IR_EXPR && hlsl_ir_expr(lhs)->op == HLSL_IR_UNOP_CAST) { FIXME("Cast on the lhs.\n"); vkd3d_free(assign); return NULL; } else if (lhs->type == HLSL_IR_SWIZZLE) { struct hlsl_ir_swizzle *swizzle = hlsl_ir_swizzle(lhs); const struct hlsl_type *swizzle_type = swizzle->node.data_type; unsigned int width; if (lhs->data_type->type == HLSL_CLASS_MATRIX) FIXME("Assignments with writemasks and matrices on lhs are not supported yet.\n"); lhs_inner = swizzle->val.node; hlsl_src_remove(&swizzle->val); list_remove(&lhs->entry); list_add_after(&rhs->entry, &lhs->entry); hlsl_src_from_node(&swizzle->val, rhs); if (!invert_swizzle(&swizzle->swizzle, &writemask, &width)) { hlsl_error(ctx, lhs->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_WRITEMASK, "Invalid writemask."); vkd3d_free(assign); return NULL; } assert(swizzle_type->type == HLSL_CLASS_VECTOR); if (swizzle_type->dimx != width) swizzle->node.data_type = ctx->builtin_types.vector[swizzle_type->base_type][width - 1]; rhs = &swizzle->node; } else { hlsl_error(ctx, lhs->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_LVALUE, "Invalid lvalue."); vkd3d_free(assign); return NULL; } lhs = lhs_inner; } init_node(&assign->node, HLSL_IR_ASSIGNMENT, lhs_type, lhs->loc); assign->writemask = writemask; assign->lhs.var = hlsl_ir_load(lhs)->src.var; hlsl_src_from_node(&assign->lhs.offset, hlsl_ir_load(lhs)->src.offset.node); if (assign_op != ASSIGN_OP_ASSIGN) { enum hlsl_ir_expr_op op = op_from_assignment(assign_op); struct hlsl_ir_node *expr; expr = hlsl_new_binary_expr(op, lhs, rhs); list_add_after(&rhs->entry, &expr->entry); rhs = expr; } hlsl_src_from_node(&assign->rhs, rhs); list_add_tail(instrs, &assign->node.entry); return &assign->node; } static void struct_var_initializer(struct hlsl_ctx *ctx, struct list *list, struct hlsl_ir_var *var, struct parse_initializer *initializer) { struct hlsl_type *type = var->data_type; struct hlsl_struct_field *field; unsigned int i = 0; if (initializer_size(initializer) != hlsl_type_component_count(type)) { hlsl_error(ctx, var->loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT, "Wrong number of parameters in struct initializer."); free_parse_initializer(initializer); return; } list_move_tail(list, initializer->instrs); vkd3d_free(initializer->instrs); LIST_FOR_EACH_ENTRY(field, type->e.elements, struct hlsl_struct_field, entry) { struct hlsl_ir_node *node = initializer->args[i]; struct hlsl_ir_assignment *assign; struct hlsl_ir_constant *c; if (i++ >= initializer->args_count) break; if (hlsl_type_component_count(field->type) == hlsl_type_component_count(node->data_type)) { if (!(c = hlsl_new_uint_constant(ctx, field->reg_offset * 4, node->loc))) break; list_add_tail(list, &c->node.entry); if (!(assign = hlsl_new_assignment(var, &c->node, node, 0, node->loc))) break; list_add_tail(list, &assign->node.entry); } else FIXME("Initializing with \"mismatched\" fields is not supported yet.\n"); } vkd3d_free(initializer->args); } static void free_parse_variable_def(struct parse_variable_def *v) { free_parse_initializer(&v->initializer); vkd3d_free(v->name); vkd3d_free((void *)v->semantic); vkd3d_free(v->reg_reservation); vkd3d_free(v); } static struct list *declare_vars(struct hlsl_ctx *ctx, struct hlsl_type *basic_type, DWORD modifiers, struct list *var_list) { struct parse_variable_def *v, *v_next; struct list *statements_list; struct hlsl_ir_var *var; struct hlsl_type *type; bool ret, local = true; if (basic_type->type == HLSL_CLASS_MATRIX) assert(basic_type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK); if (!(statements_list = make_empty_list())) { LIST_FOR_EACH_ENTRY_SAFE(v, v_next, var_list, struct parse_variable_def, entry) free_parse_variable_def(v); vkd3d_free(var_list); return NULL; } if (!var_list) return statements_list; LIST_FOR_EACH_ENTRY_SAFE(v, v_next, var_list, struct parse_variable_def, entry) { if (v->array_size) type = hlsl_new_array_type(ctx, basic_type, v->array_size); else type = basic_type; if (!(var = hlsl_new_var(v->name, type, v->loc, v->semantic, modifiers, v->reg_reservation))) { free_parse_variable_def(v); continue; } if (ctx->cur_scope == ctx->globals) { var->modifiers |= HLSL_STORAGE_UNIFORM; local = false; } if (type->modifiers & HLSL_MODIFIER_CONST && !(var->modifiers & HLSL_STORAGE_UNIFORM) && !v->initializer.args_count) { hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_MISSING_INITIALIZER, "Const variable \"%s\" is missing an initializer.", var->name); hlsl_free_var(var); vkd3d_free(v); continue; } ret = declare_variable(ctx, var, local); if (!ret) { hlsl_free_var(var); vkd3d_free(v); continue; } if (v->initializer.args_count) { unsigned int size = initializer_size(&v->initializer); struct hlsl_ir_load *load; if (type->type <= HLSL_CLASS_LAST_NUMERIC && type->dimx * type->dimy != size && size != 1) { if (size < type->dimx * type->dimy) { hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT, "Wrong number of parameters in numeric initializer."); free_parse_initializer(&v->initializer); vkd3d_free(v); continue; } } if ((type->type == HLSL_CLASS_STRUCT || type->type == HLSL_CLASS_ARRAY) && hlsl_type_component_count(type) != size) { hlsl_error(ctx, v->loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT, "Wrong number of parameters in initializer."); free_parse_initializer(&v->initializer); vkd3d_free(v); continue; } if (type->type == HLSL_CLASS_STRUCT) { struct_var_initializer(ctx, statements_list, var, &v->initializer); vkd3d_free(v); continue; } if (type->type > HLSL_CLASS_LAST_NUMERIC) { FIXME("Initializers for non scalar/struct variables not supported yet.\n"); free_parse_initializer(&v->initializer); vkd3d_free(v); continue; } if (v->array_size > 0) { FIXME("Initializing arrays is not supported yet.\n"); free_parse_initializer(&v->initializer); vkd3d_free(v); continue; } if (v->initializer.args_count > 1) { FIXME("Complex initializers are not supported yet.\n"); free_parse_initializer(&v->initializer); vkd3d_free(v); continue; } load = hlsl_new_var_load(var, var->loc); list_add_tail(v->initializer.instrs, &load->node.entry); add_assignment(ctx, v->initializer.instrs, &load->node, ASSIGN_OP_ASSIGN, v->initializer.args[0]); vkd3d_free(v->initializer.args); if (modifiers & HLSL_STORAGE_STATIC) list_move_tail(&ctx->static_initializers, v->initializer.instrs); else list_move_tail(statements_list, v->initializer.instrs); vkd3d_free(v->initializer.instrs); } vkd3d_free(v); } vkd3d_free(var_list); return statements_list; } } %locations %define parse.error verbose %define api.prefix {hlsl_yy} %define api.pure full %expect 1 %lex-param {yyscan_t scanner} %parse-param {void *scanner} %parse-param {struct hlsl_ctx *ctx} %union { struct hlsl_type *type; INT intval; FLOAT floatval; BOOL boolval; char *name; DWORD modifiers; struct hlsl_ir_node *instr; struct list *list; struct parse_function function; struct parse_parameter parameter; struct parse_initializer initializer; struct parse_variable_def *variable_def; struct parse_if_body if_body; enum parse_unary_op unary_op; enum parse_assign_op assign_op; struct hlsl_reg_reservation *reg_reservation; struct parse_colon_attribute colon_attribute; } %token KW_BLENDSTATE %token KW_BREAK %token KW_BUFFER %token KW_CBUFFER %token KW_COLUMN_MAJOR %token KW_COMPILE %token KW_CONST %token KW_CONTINUE %token KW_DEPTHSTENCILSTATE %token KW_DEPTHSTENCILVIEW %token KW_DISCARD %token KW_DO %token KW_DOUBLE %token KW_ELSE %token KW_EXTERN %token KW_FALSE %token KW_FOR %token KW_GEOMETRYSHADER %token KW_GROUPSHARED %token KW_IF %token KW_IN %token KW_INLINE %token KW_INOUT %token KW_MATRIX %token KW_NAMESPACE %token KW_NOINTERPOLATION %token KW_OUT %token KW_PASS %token KW_PIXELSHADER %token KW_PRECISE %token KW_RASTERIZERSTATE %token KW_RENDERTARGETVIEW %token KW_RETURN %token KW_REGISTER %token KW_ROW_MAJOR %token KW_SAMPLER %token KW_SAMPLER1D %token KW_SAMPLER2D %token KW_SAMPLER3D %token KW_SAMPLERCUBE %token KW_SAMPLER_STATE %token KW_SAMPLERCOMPARISONSTATE %token KW_SHARED %token KW_STATEBLOCK %token KW_STATEBLOCK_STATE %token KW_STATIC %token KW_STRING %token KW_STRUCT %token KW_SWITCH %token KW_TBUFFER %token KW_TECHNIQUE %token KW_TECHNIQUE10 %token KW_TEXTURE %token KW_TEXTURE1D %token KW_TEXTURE1DARRAY %token KW_TEXTURE2D %token KW_TEXTURE2DARRAY %token KW_TEXTURE2DMS %token KW_TEXTURE2DMSARRAY %token KW_TEXTURE3D %token KW_TEXTURE3DARRAY %token KW_TEXTURECUBE %token KW_TRUE %token KW_TYPEDEF %token KW_UNIFORM %token KW_VECTOR %token KW_VERTEXSHADER %token KW_VOID %token KW_VOLATILE %token KW_WHILE %token OP_INC %token OP_DEC %token OP_AND %token OP_OR %token OP_EQ %token OP_LEFTSHIFT %token OP_LEFTSHIFTASSIGN %token OP_RIGHTSHIFT %token OP_RIGHTSHIFTASSIGN %token OP_ELLIPSIS %token OP_LE %token OP_GE %token OP_NE %token OP_ADDASSIGN %token OP_SUBASSIGN %token OP_MULASSIGN %token OP_DIVASSIGN %token OP_MODASSIGN %token OP_ANDASSIGN %token OP_ORASSIGN %token OP_XORASSIGN %token OP_UNKNOWN1 %token OP_UNKNOWN2 %token OP_UNKNOWN3 %token OP_UNKNOWN4 %token C_FLOAT %token C_INTEGER %token PRE_LINE %type add_expr %type assignment_expr %type bitand_expr %type bitor_expr %type bitxor_expr %type compound_statement %type conditional_expr %type declaration %type declaration_statement %type equality_expr %type expr %type expr_statement %type field %type fields_list %type initializer_expr %type jump_statement %type logicand_expr %type logicor_expr %type loop_statement %type mul_expr %type param_list %type parameters %type postfix_expr %type primary_expr %type relational_expr %type selection_statement %type shift_expr %type statement %type statement_list %type struct_declaration %type type_specs %type unary_expr %type variables_def %type variables_def_optional %token VAR_IDENTIFIER %token NEW_IDENTIFIER %token STRING %token TYPE_IDENTIFIER %type assign_op %type boolean %type colon_attribute %type func_declaration %type func_prototype %type complex_initializer %type initializer_expr_list %type if_body %type array %type input_mod %type input_mods %type var_modifiers %type any_identifier %type semantic %type var_identifier %type parameter %type register_opt %type base_type %type field_type %type named_struct_spec %type unnamed_struct_spec %type struct_spec %type type %type typedef_type %type unary_op %type type_spec %type variable_def %% hlsl_prog: %empty | hlsl_prog func_declaration { const struct hlsl_ir_function_decl *decl; decl = get_overloaded_func(&ctx->functions, $2.name, $2.decl->parameters, true); if (decl && !decl->func->intrinsic) { if (decl->body && $2.decl->body) { hlsl_error(ctx, $2.decl->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Function \"%s\" is already defined.", $2.name); YYABORT; } else if (!hlsl_type_compare(decl->return_type, $2.decl->return_type)) { hlsl_error(ctx, $2.decl->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Function \"%s\" was already declared with a different return type.", $2.name); hlsl_note(ctx, decl->loc, VKD3D_SHADER_LOG_ERROR, "\"%s\" previously declared here", $2.name); YYABORT; } } if (hlsl_type_is_void($2.decl->return_type) && $2.decl->semantic) hlsl_error(ctx, $2.decl->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_SEMANTIC, "Semantics are not allowed on void functions."); hlsl_add_function(&ctx->functions, $2.name, $2.decl, false); } | hlsl_prog declaration_statement { if (!list_empty($2)) FIXME("Uniform initializer.\n"); hlsl_free_instr_list($2); } | hlsl_prog preproc_directive | hlsl_prog ';' preproc_directive: PRE_LINE STRING { const char **new_array = NULL; ctx->location.line = $1; if (strcmp($2, ctx->location.source_name)) new_array = vkd3d_realloc(ctx->source_files, sizeof(*ctx->source_files) * (ctx->source_files_count + 1)); if (new_array) { ctx->source_files = new_array; ctx->source_files[ctx->source_files_count++] = $2; ctx->location.source_name = $2; } else { vkd3d_free($2); } } struct_declaration: var_modifiers struct_spec variables_def_optional ';' { struct hlsl_type *type; DWORD modifiers = $1; if (!$3) { if (!$2->name) hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "Anonymous struct type must declare a variable."); if (modifiers) hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifiers are not allowed on struct type declataions."); } if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1))) YYABORT; $$ = declare_vars(ctx, type, modifiers, $3); } struct_spec: named_struct_spec | unnamed_struct_spec named_struct_spec: KW_STRUCT any_identifier '{' fields_list '}' { bool ret; $$ = hlsl_new_struct_type(ctx, $2, $4); if (hlsl_get_var(ctx->cur_scope, $2)) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "\"%s\" is already declared as a variable.", $2); YYABORT; } ret = hlsl_scope_add_type(ctx->cur_scope, $$); if (!ret) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Struct \"%s\" is already defined.", $2); YYABORT; } } unnamed_struct_spec: KW_STRUCT '{' fields_list '}' { $$ = hlsl_new_struct_type(ctx, NULL, $3); } any_identifier: VAR_IDENTIFIER | TYPE_IDENTIFIER | NEW_IDENTIFIER fields_list: %empty { if (!($$ = make_empty_list())) YYABORT; } | fields_list field { bool ret; struct hlsl_struct_field *field, *next; $$ = $1; LIST_FOR_EACH_ENTRY_SAFE(field, next, $2, struct hlsl_struct_field, entry) { ret = add_struct_field($$, field); if (ret == false) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Field \"%s\" is already defined.", field->name); vkd3d_free(field); } } vkd3d_free($2); } field_type: type | unnamed_struct_spec field: var_modifiers field_type variables_def ';' { struct hlsl_type *type; DWORD modifiers = $1; if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1))) YYABORT; $$ = gen_struct_fields(ctx, type, modifiers, $3); } func_declaration: func_prototype compound_statement { $$ = $1; $$.decl->body = $2; hlsl_pop_scope(ctx); } | func_prototype ';' { $$ = $1; hlsl_pop_scope(ctx); } func_prototype: /* var_modifiers is necessary to avoid shift/reduce conflicts. */ var_modifiers type var_identifier '(' parameters ')' colon_attribute { if ($1) { hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifiers are not allowed on functions."); YYABORT; } if (hlsl_get_var(ctx->globals, $3)) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Function \"%s\" is already defined.", $3); YYABORT; } if (hlsl_type_is_void($2) && $7.semantic) { hlsl_error(ctx, @7, VKD3D_SHADER_ERROR_HLSL_INVALID_SEMANTIC, "Semantics are not allowed on void functions."); } if ($7.reg_reservation) { FIXME("Unexpected register reservation for a function.\n"); vkd3d_free($7.reg_reservation); } if (!($$.decl = hlsl_new_func_decl(ctx, $2, $5, $7.semantic, @3))) YYABORT; $$.name = $3; ctx->cur_function = $$.decl; } compound_statement: '{' '}' { if (!($$ = make_empty_list())) YYABORT; } | '{' scope_start statement_list '}' { hlsl_pop_scope(ctx); $$ = $3; } scope_start: %empty { hlsl_push_scope(ctx); } var_identifier: VAR_IDENTIFIER | NEW_IDENTIFIER colon_attribute: %empty { $$.semantic = NULL; $$.reg_reservation = NULL; } | semantic { $$.semantic = $1; $$.reg_reservation = NULL; } | register_opt { $$.semantic = NULL; $$.reg_reservation = $1; } semantic: ':' any_identifier { $$ = $2; } /* FIXME: Writemasks */ register_opt: ':' KW_REGISTER '(' any_identifier ')' { $$ = parse_reg_reservation($4); vkd3d_free($4); } | ':' KW_REGISTER '(' any_identifier ',' any_identifier ')' { FIXME("Ignoring shader target %s in a register reservation.\n", debugstr_a($4)); vkd3d_free($4); $$ = parse_reg_reservation($6); vkd3d_free($6); } parameters: scope_start { if (!($$ = make_empty_list())) YYABORT; } | scope_start param_list { $$ = $2; } param_list: parameter { if (!($$ = make_empty_list())) YYABORT; if (!add_func_parameter(ctx, $$, &$1, @1)) { ERR("Error adding function parameter %s.\n", $1.name); ctx->failed = true; YYABORT; } } | param_list ',' parameter { $$ = $1; if (!add_func_parameter(ctx, $$, &$3, @3)) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "Parameter \"%s\" is already declared.", $3.name); YYABORT; } } parameter: input_mods var_modifiers type any_identifier colon_attribute { struct hlsl_type *type; DWORD modifiers = $2; if (!(type = apply_type_modifiers(ctx, $3, &modifiers, @2))) YYABORT; $$.modifiers = $1 ? $1 : HLSL_STORAGE_IN; $$.modifiers |= modifiers; $$.type = type; $$.name = $4; $$.semantic = $5.semantic; $$.reg_reservation = $5.reg_reservation; } input_mods: %empty { $$ = 0; } | input_mods input_mod { if ($1 & $2) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Duplicate modifiers specified."); YYABORT; } $$ = $1 | $2; } input_mod: KW_IN { $$ = HLSL_STORAGE_IN; } | KW_OUT { $$ = HLSL_STORAGE_OUT; } | KW_INOUT { $$ = HLSL_STORAGE_IN | HLSL_STORAGE_OUT; } type: base_type { $$ = $1; } | KW_VECTOR '<' base_type ',' C_INTEGER '>' { if ($3->type != HLSL_CLASS_SCALAR) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Vectors of non-scalar types are not allowed."); YYABORT; } if ($5 < 1 || $5 > 4) { hlsl_error(ctx, @5, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE, "Vector size must be between 1 and 4."); YYABORT; } $$ = hlsl_new_type(ctx, NULL, HLSL_CLASS_VECTOR, $3->base_type, $5, 1); } | KW_MATRIX '<' base_type ',' C_INTEGER ',' C_INTEGER '>' { if ($3->type != HLSL_CLASS_SCALAR) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Matrices of non-scalar types are not allowed."); YYABORT; } if ($5 < 1 || $5 > 4) { hlsl_error(ctx, @5, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE, "Matrix row count must be between 1 and 4."); YYABORT; } if ($7 < 1 || $7 > 4) { hlsl_error(ctx, @7, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE, "Matrix column count must be between 1 and 4."); YYABORT; } $$ = hlsl_new_type(ctx, NULL, HLSL_CLASS_MATRIX, $3->base_type, $7, $5); } base_type: KW_VOID { $$ = ctx->builtin_types.Void; } | KW_SAMPLER { $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_GENERIC]; } | KW_SAMPLER1D { $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_1D]; } | KW_SAMPLER2D { $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_2D]; } | KW_SAMPLER3D { $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_3D]; } | KW_SAMPLERCUBE { $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_3D]; } | TYPE_IDENTIFIER { $$ = hlsl_get_type(ctx->cur_scope, $1, true); vkd3d_free($1); } | KW_STRUCT TYPE_IDENTIFIER { $$ = hlsl_get_type(ctx->cur_scope, $2, true); if ($$->type != HLSL_CLASS_STRUCT) hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_REDEFINED, "\"%s\" redefined as a structure.", $2); vkd3d_free($2); } declaration_statement: declaration | struct_declaration | typedef { if (!($$ = make_empty_list())) YYABORT; } typedef_type: type | struct_spec typedef: KW_TYPEDEF var_modifiers typedef_type type_specs ';' { if ($2 & ~HLSL_TYPE_MODIFIERS_MASK) { struct parse_variable_def *v, *v_next; hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Storage modifiers are not allowed on typedefs."); LIST_FOR_EACH_ENTRY_SAFE(v, v_next, $4, struct parse_variable_def, entry) vkd3d_free(v); vkd3d_free($4); YYABORT; } if (!add_typedef(ctx, $2, $3, $4)) YYABORT; } type_specs: type_spec { if (!($$ = make_empty_list())) YYABORT; list_add_head($$, &$1->entry); } | type_specs ',' type_spec { $$ = $1; list_add_tail($$, &$3->entry); } type_spec: any_identifier array { $$ = vkd3d_calloc(1, sizeof(*$$)); $$->loc = @1; $$->name = $1; $$->array_size = $2; } declaration: var_modifiers type variables_def ';' { struct hlsl_type *type; DWORD modifiers = $1; if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1))) YYABORT; $$ = declare_vars(ctx, type, modifiers, $3); } variables_def_optional: %empty { $$ = NULL; } | variables_def variables_def: variable_def { if (!($$ = make_empty_list())) YYABORT; list_add_head($$, &$1->entry); } | variables_def ',' variable_def { $$ = $1; list_add_tail($$, &$3->entry); } variable_def: any_identifier array colon_attribute { $$ = vkd3d_calloc(1, sizeof(*$$)); $$->loc = @1; $$->name = $1; $$->array_size = $2; $$->semantic = $3.semantic; $$->reg_reservation = $3.reg_reservation; } | any_identifier array colon_attribute '=' complex_initializer { $$ = vkd3d_calloc(1, sizeof(*$$)); $$->loc = @1; $$->name = $1; $$->array_size = $2; $$->semantic = $3.semantic; $$->reg_reservation = $3.reg_reservation; $$->initializer = $5; } array: %empty { $$ = 0; } | '[' expr ']' { unsigned int size = evaluate_array_dimension(node_from_list($2)); hlsl_free_instr_list($2); if (!size) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE, "Array size is not a positive integer constant."); YYABORT; } if (size > 65536) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_INVALID_SIZE, "Array size must be between 1 and 65536."); YYABORT; } $$ = size; } var_modifiers: %empty { $$ = 0; } | KW_EXTERN var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_EXTERN, @1); } | KW_NOINTERPOLATION var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_NOINTERPOLATION, @1); } | KW_PRECISE var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_MODIFIER_PRECISE, @1); } | KW_SHARED var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_SHARED, @1); } | KW_GROUPSHARED var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_GROUPSHARED, @1); } | KW_STATIC var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_STATIC, @1); } | KW_UNIFORM var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_UNIFORM, @1); } | KW_VOLATILE var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_STORAGE_VOLATILE, @1); } | KW_CONST var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_MODIFIER_CONST, @1); } | KW_ROW_MAJOR var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_MODIFIER_ROW_MAJOR, @1); } | KW_COLUMN_MAJOR var_modifiers { $$ = add_modifiers(ctx, $2, HLSL_MODIFIER_COLUMN_MAJOR, @1); } complex_initializer: initializer_expr { $$.args_count = 1; if (!($$.args = vkd3d_malloc(sizeof(*$$.args)))) YYABORT; $$.args[0] = node_from_list($1); $$.instrs = $1; } | '{' initializer_expr_list '}' { $$ = $2; } | '{' initializer_expr_list ',' '}' { $$ = $2; } initializer_expr: assignment_expr initializer_expr_list: initializer_expr { $$.args_count = 1; if (!($$.args = vkd3d_malloc(sizeof(*$$.args)))) YYABORT; $$.args[0] = node_from_list($1); $$.instrs = $1; } | initializer_expr_list ',' initializer_expr { $$ = $1; if (!($$.args = vkd3d_realloc($$.args, ($$.args_count + 1) * sizeof(*$$.args)))) YYABORT; $$.args[$$.args_count++] = node_from_list($3); list_move_tail($$.instrs, $3); vkd3d_free($3); } boolean: KW_TRUE { $$ = TRUE; } | KW_FALSE { $$ = FALSE; } statement_list: statement | statement_list statement { $$ = $1; list_move_tail($$, $2); vkd3d_free($2); } statement: declaration_statement | expr_statement | compound_statement | jump_statement | selection_statement | loop_statement jump_statement: KW_RETURN expr ';' { if (!add_return(ctx, $2, node_from_list($2), @1)) YYABORT; $$ = $2; } | KW_RETURN ';' { if (!($$ = make_empty_list())) YYABORT; if (!add_return(ctx, $$, NULL, @1)) YYABORT; } selection_statement: KW_IF '(' expr ')' if_body { struct hlsl_ir_node *condition = node_from_list($3); struct hlsl_ir_if *instr; if (!(instr = hlsl_new_if(condition, @1))) YYABORT; list_move_tail(&instr->then_instrs, $5.then_instrs); list_move_tail(&instr->else_instrs, $5.else_instrs); vkd3d_free($5.then_instrs); vkd3d_free($5.else_instrs); if (condition->data_type->dimx > 1 || condition->data_type->dimy > 1) hlsl_error(ctx, instr->node.loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "if condition requires a scalar."); $$ = $3; list_add_tail($$, &instr->node.entry); } if_body: statement { $$.then_instrs = $1; $$.else_instrs = NULL; } | statement KW_ELSE statement { $$.then_instrs = $1; $$.else_instrs = $3; } loop_statement: KW_WHILE '(' expr ')' statement { $$ = create_loop(LOOP_WHILE, NULL, $3, NULL, $5, @1); } | KW_DO statement KW_WHILE '(' expr ')' ';' { $$ = create_loop(LOOP_DO_WHILE, NULL, $5, NULL, $2, @1); } | KW_FOR '(' scope_start expr_statement expr_statement expr ')' statement { $$ = create_loop(LOOP_FOR, $4, $5, $6, $8, @1); hlsl_pop_scope(ctx); } | KW_FOR '(' scope_start declaration expr_statement expr ')' statement { $$ = create_loop(LOOP_FOR, $4, $5, $6, $8, @1); hlsl_pop_scope(ctx); } expr_statement: ';' { if (!($$ = make_empty_list())) YYABORT; } | expr ';' { $$ = $1; } primary_expr: C_FLOAT { struct hlsl_ir_constant *c; if (!(c = vkd3d_malloc(sizeof(*c)))) YYABORT; init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_FLOAT], @1); c->value.f[0] = $1; if (!($$ = make_list(&c->node))) YYABORT; } | C_INTEGER { struct hlsl_ir_constant *c; if (!(c = vkd3d_malloc(sizeof(*c)))) YYABORT; init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_INT], @1); c->value.i[0] = $1; if (!($$ = make_list(&c->node))) YYABORT; } | boolean { struct hlsl_ir_constant *c; if (!(c = vkd3d_malloc(sizeof(*c)))) YYABORT; init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_BOOL], @1); c->value.b[0] = $1; if (!($$ = make_list(&c->node))) YYABORT; } | VAR_IDENTIFIER { struct hlsl_ir_load *load; struct hlsl_ir_var *var; if (!(var = hlsl_get_var(ctx->cur_scope, $1))) { hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_NOT_DEFINED, "Variable \"%s\" is not defined.", $1); YYABORT; } if ((load = hlsl_new_var_load(var, @1))) { if (!($$ = make_list(&load->node))) YYABORT; } else $$ = NULL; } | '(' expr ')' { $$ = $2; } postfix_expr: primary_expr | postfix_expr OP_INC { struct hlsl_ir_node *inc; if (node_from_list($1)->data_type->modifiers & HLSL_MODIFIER_CONST) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression."); YYABORT; } inc = hlsl_new_unary_expr(HLSL_IR_UNOP_POSTINC, node_from_list($1), @2); /* Post increment/decrement expressions are considered const */ inc->data_type = hlsl_type_clone(ctx, inc->data_type, 0); inc->data_type->modifiers |= HLSL_MODIFIER_CONST; $$ = append_unop($1, inc); } | postfix_expr OP_DEC { struct hlsl_ir_node *inc; if (node_from_list($1)->data_type->modifiers & HLSL_MODIFIER_CONST) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression."); YYABORT; } inc = hlsl_new_unary_expr(HLSL_IR_UNOP_POSTDEC, node_from_list($1), @2); /* Post increment/decrement expressions are considered const */ inc->data_type = hlsl_type_clone(ctx, inc->data_type, 0); inc->data_type->modifiers |= HLSL_MODIFIER_CONST; $$ = append_unop($1, inc); } | postfix_expr '.' any_identifier { struct hlsl_ir_node *node = node_from_list($1); if (node->data_type->type == HLSL_CLASS_STRUCT) { struct hlsl_type *type = node->data_type; struct hlsl_struct_field *field; $$ = NULL; LIST_FOR_EACH_ENTRY(field, type->e.elements, struct hlsl_struct_field, entry) { if (!strcmp($3, field->name)) { if (!add_record_load(ctx, $1, node, field, @2)) YYABORT; $$ = $1; break; } } if (!$$) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_NOT_DEFINED, "Field \"%s\" is not defined.", $3); YYABORT; } } else if (node->data_type->type <= HLSL_CLASS_LAST_NUMERIC) { struct hlsl_ir_swizzle *swizzle; if (!(swizzle = get_swizzle(ctx, node, $3, &@3))) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "Invalid swizzle \"%s\".", $3); YYABORT; } $$ = append_unop($1, &swizzle->node); } else { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX, "Invalid subscript \"%s\".", $3); YYABORT; } } | postfix_expr '[' expr ']' { struct hlsl_ir_node *array = node_from_list($1), *index = node_from_list($3); list_move_tail($1, $3); vkd3d_free($3); if (index->data_type->type != HLSL_CLASS_SCALAR) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Array index is not scalar."); hlsl_free_instr_list($1); YYABORT; } if (!add_array_load(ctx, $1, array, index, @2)) { hlsl_free_instr_list($1); YYABORT; } $$ = $1; } /* var_modifiers is necessary to avoid shift/reduce conflicts. */ | var_modifiers type '(' initializer_expr_list ')' { struct hlsl_ir_assignment *assignment; unsigned int i, writemask_offset = 0; static unsigned int counter; struct hlsl_ir_load *load; struct hlsl_ir_var *var; char name[23]; if ($1) { hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifiers are not allowed on constructors."); YYABORT; } if ($2->type > HLSL_CLASS_LAST_NUMERIC) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Constructors may only be used with numeric data types."); YYABORT; } if ($2->dimx * $2->dimy != initializer_size(&$4)) { hlsl_error(ctx, @4, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT, "Expected %u components in constructor, but got %u.", $2->dimx * $2->dimy, initializer_size(&$4)); YYABORT; } if ($2->type == HLSL_CLASS_MATRIX) FIXME("Matrix constructors are not supported yet.\n"); sprintf(name, "", counter++); if (!(var = hlsl_new_synthetic_var(ctx, name, $2, @2))) YYABORT; for (i = 0; i < $4.args_count; ++i) { struct hlsl_ir_node *arg = $4.args[i]; unsigned int width; if (arg->data_type->type == HLSL_CLASS_OBJECT) { hlsl_error(ctx, arg->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Invalid type for constructor argument."); continue; } width = hlsl_type_component_count(arg->data_type); if (width > 4) { FIXME("Constructor argument with %u components.\n", width); continue; } if (!(arg = add_implicit_conversion(ctx, $4.instrs, arg, ctx->builtin_types.vector[$2->base_type][width - 1], &arg->loc))) continue; if (!(assignment = hlsl_new_assignment(var, NULL, arg, ((1 << width) - 1) << writemask_offset, arg->loc))) YYABORT; writemask_offset += width; list_add_tail($4.instrs, &assignment->node.entry); } vkd3d_free($4.args); if (!(load = hlsl_new_var_load(var, @2))) YYABORT; $$ = append_unop($4.instrs, &load->node); } unary_expr: postfix_expr | OP_INC unary_expr { if (node_from_list($2)->data_type->modifiers & HLSL_MODIFIER_CONST) { hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression."); YYABORT; } $$ = append_unop($2, hlsl_new_unary_expr(HLSL_IR_UNOP_PREINC, node_from_list($2), @1)); } | OP_DEC unary_expr { if (node_from_list($2)->data_type->modifiers & HLSL_MODIFIER_CONST) { hlsl_error(ctx, @1, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression."); YYABORT; } $$ = append_unop($2, hlsl_new_unary_expr(HLSL_IR_UNOP_PREDEC, node_from_list($2), @1)); } | unary_op unary_expr { enum hlsl_ir_expr_op ops[] = {0, HLSL_IR_UNOP_NEG, HLSL_IR_UNOP_LOGIC_NOT, HLSL_IR_UNOP_BIT_NOT}; if ($1 == UNARY_OP_PLUS) $$ = $2; else $$ = append_unop($2, hlsl_new_unary_expr(ops[$1], node_from_list($2), @1)); } /* var_modifiers is necessary to avoid shift/reduce conflicts. */ | '(' var_modifiers type array ')' unary_expr { struct hlsl_type *src_type = node_from_list($6)->data_type; struct hlsl_type *dst_type; if ($2) { hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_MODIFIER, "Modifiers are not allowed on casts."); YYABORT; } if ($4) dst_type = hlsl_new_array_type(ctx, $3, $4); else dst_type = $3; if (!compatible_data_types(src_type, dst_type)) { struct vkd3d_string_buffer *src_string, *dst_string; src_string = hlsl_type_to_string(&ctx->string_buffers, src_type); dst_string = hlsl_type_to_string(&ctx->string_buffers, dst_type); if (src_string && dst_string) hlsl_error(ctx, @3, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE, "Can't cast from %s to %s.", src_string->buffer, dst_string->buffer); vkd3d_string_buffer_release(&ctx->string_buffers, src_string); vkd3d_string_buffer_release(&ctx->string_buffers, dst_string); YYABORT; } $$ = append_unop($6, &hlsl_new_cast(node_from_list($6), dst_type, &@3)->node); } unary_op: '+' { $$ = UNARY_OP_PLUS; } | '-' { $$ = UNARY_OP_MINUS; } | '!' { $$ = UNARY_OP_LOGICNOT; } | '~' { $$ = UNARY_OP_BITNOT; } mul_expr: unary_expr | mul_expr '*' unary_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_MUL, @2); } | mul_expr '/' unary_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_DIV, @2); } | mul_expr '%' unary_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_MOD, @2); } add_expr: mul_expr | add_expr '+' mul_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_ADD, @2); } | add_expr '-' mul_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_SUB, @2); } shift_expr: add_expr | shift_expr OP_LEFTSHIFT add_expr { FIXME("Left shift.\n"); } | shift_expr OP_RIGHTSHIFT add_expr { FIXME("Right shift.\n"); } relational_expr: shift_expr | relational_expr '<' shift_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_LESS, @2); } | relational_expr '>' shift_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_GREATER, @2); } | relational_expr OP_LE shift_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_LEQUAL, @2); } | relational_expr OP_GE shift_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_GEQUAL, @2); } equality_expr: relational_expr | equality_expr OP_EQ relational_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_EQUAL, @2); } | equality_expr OP_NE relational_expr { $$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_NEQUAL, @2); } bitand_expr: equality_expr | bitand_expr '&' equality_expr { FIXME("Bitwise AND.\n"); } bitxor_expr: bitand_expr | bitxor_expr '^' bitand_expr { FIXME("Bitwise XOR.\n"); } bitor_expr: bitxor_expr | bitor_expr '|' bitxor_expr { FIXME("Bitwise OR.\n"); } logicand_expr: bitor_expr | logicand_expr OP_AND bitor_expr { FIXME("Logical AND.\n"); } logicor_expr: logicand_expr | logicor_expr OP_OR logicand_expr { FIXME("Logical OR.\n"); } conditional_expr: logicor_expr | logicor_expr '?' expr ':' assignment_expr { FIXME("Ternary operator.\n"); } assignment_expr: conditional_expr | unary_expr assign_op assignment_expr { struct hlsl_ir_node *lhs = node_from_list($1), *rhs = node_from_list($3); if (lhs->data_type->modifiers & HLSL_MODIFIER_CONST) { hlsl_error(ctx, @2, VKD3D_SHADER_ERROR_HLSL_MODIFIES_CONST, "Statement modifies a const expression."); YYABORT; } list_move_tail($3, $1); vkd3d_free($1); if (!add_assignment(ctx, $3, lhs, $2, rhs)) YYABORT; $$ = $3; } assign_op: '=' { $$ = ASSIGN_OP_ASSIGN; } | OP_ADDASSIGN { $$ = ASSIGN_OP_ADD; } | OP_SUBASSIGN { $$ = ASSIGN_OP_SUB; } | OP_MULASSIGN { $$ = ASSIGN_OP_MUL; } | OP_DIVASSIGN { $$ = ASSIGN_OP_DIV; } | OP_MODASSIGN { $$ = ASSIGN_OP_MOD; } | OP_LEFTSHIFTASSIGN { $$ = ASSIGN_OP_LSHIFT; } | OP_RIGHTSHIFTASSIGN { $$ = ASSIGN_OP_RSHIFT; } | OP_ANDASSIGN { $$ = ASSIGN_OP_AND; } | OP_ORASSIGN { $$ = ASSIGN_OP_OR; } | OP_XORASSIGN { $$ = ASSIGN_OP_XOR; } expr: assignment_expr | expr ',' assignment_expr { $$ = $1; list_move_tail($$, $3); vkd3d_free($3); } %% static void dump_function_decl(struct rb_entry *entry, void *context) { struct hlsl_ir_function_decl *func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function_decl, entry); if (func->body) hlsl_dump_function(func); } static void dump_function(struct rb_entry *entry, void *context) { struct hlsl_ir_function *func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry); rb_for_each_entry(&func->overloads, dump_function_decl, NULL); } /* Allocate a unique, ordered index to each instruction, which will be used for * computing liveness ranges. */ static unsigned int index_instructions(struct list *instrs, unsigned int index) { struct hlsl_ir_node *instr; LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry) { instr->index = index++; if (instr->type == HLSL_IR_IF) { struct hlsl_ir_if *iff = hlsl_ir_if(instr); index = index_instructions(&iff->then_instrs, index); index = index_instructions(&iff->else_instrs, index); } else if (instr->type == HLSL_IR_LOOP) { index = index_instructions(&hlsl_ir_loop(instr)->body, index); hlsl_ir_loop(instr)->next_index = index; } } return index; } /* Compute the earliest and latest liveness for each variable. In the case that * a variable is accessed inside of a loop, we promote its liveness to extend * to at least the range of the entire loop. Note that we don't need to do this * for anonymous nodes, since there's currently no way to use a node which was * calculated in an earlier iteration of the loop. */ static void compute_liveness_recurse(struct list *instrs, unsigned int loop_first, unsigned int loop_last) { struct hlsl_ir_node *instr; struct hlsl_ir_var *var; LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry) { switch (instr->type) { case HLSL_IR_ASSIGNMENT: { struct hlsl_ir_assignment *assignment = hlsl_ir_assignment(instr); var = assignment->lhs.var; if (!var->first_write) var->first_write = loop_first ? min(instr->index, loop_first) : instr->index; assignment->rhs.node->last_read = instr->index; if (assignment->lhs.offset.node) assignment->lhs.offset.node->last_read = instr->index; break; } case HLSL_IR_EXPR: { struct hlsl_ir_expr *expr = hlsl_ir_expr(instr); unsigned int i; for (i = 0; i < ARRAY_SIZE(expr->operands) && expr->operands[i].node; ++i) expr->operands[i].node->last_read = instr->index; break; } case HLSL_IR_IF: { struct hlsl_ir_if *iff = hlsl_ir_if(instr); compute_liveness_recurse(&iff->then_instrs, loop_first, loop_last); compute_liveness_recurse(&iff->else_instrs, loop_first, loop_last); iff->condition.node->last_read = instr->index; break; } case HLSL_IR_LOAD: { struct hlsl_ir_load *load = hlsl_ir_load(instr); var = load->src.var; var->last_read = loop_last ? max(instr->index, loop_last) : instr->index; if (load->src.offset.node) load->src.offset.node->last_read = instr->index; break; } case HLSL_IR_LOOP: { struct hlsl_ir_loop *loop = hlsl_ir_loop(instr); compute_liveness_recurse(&loop->body, loop_first ? loop_first : instr->index, loop_last ? loop_last : loop->next_index); break; } case HLSL_IR_SWIZZLE: { struct hlsl_ir_swizzle *swizzle = hlsl_ir_swizzle(instr); swizzle->val.node->last_read = instr->index; break; } case HLSL_IR_CONSTANT: case HLSL_IR_JUMP: break; } } } static void compute_liveness(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry_func) { struct hlsl_ir_var *var; LIST_FOR_EACH_ENTRY(var, &ctx->globals->vars, struct hlsl_ir_var, scope_entry) { var->first_write = 1; } LIST_FOR_EACH_ENTRY(var, entry_func->parameters, struct hlsl_ir_var, param_entry) { if (var->modifiers & HLSL_STORAGE_IN) var->first_write = 1; if (var->modifiers & HLSL_STORAGE_OUT) var->last_read = UINT_MAX; } if (entry_func->return_var) entry_func->return_var->last_read = UINT_MAX; compute_liveness_recurse(entry_func->body, 0, 0); } int hlsl_parser_compile(struct hlsl_ctx *ctx, const char *entrypoint) { struct hlsl_ir_function_decl *entry_func; yyparse(ctx->scanner, ctx); if (ctx->failed) return VKD3D_ERROR_INVALID_SHADER; if (!(entry_func = get_func_entry(ctx, entrypoint))) { const struct vkd3d_shader_location loc = {.source_name = ctx->location.source_name}; hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_NOT_DEFINED, "Entry point \"%s\" is not defined.", entrypoint); return VKD3D_ERROR_INVALID_SHADER; } if (!hlsl_type_is_void(entry_func->return_type) && entry_func->return_type->type != HLSL_CLASS_STRUCT && !entry_func->semantic) { hlsl_error(ctx, entry_func->loc, VKD3D_SHADER_ERROR_HLSL_MISSING_SEMANTIC, "Entry point \"%s\" is missing a return value semantic.", entry_func->func->name); } list_move_head(entry_func->body, &ctx->static_initializers); /* Index 0 means unused; index 1 means function entry, so start at 2. */ index_instructions(entry_func->body, 2); if (TRACE_ON()) rb_for_each_entry(&ctx->functions, dump_function, NULL); compute_liveness(ctx, entry_func); if (ctx->failed) return VKD3D_ERROR_INVALID_SHADER; return VKD3D_ERROR_NOT_IMPLEMENTED; }