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d3dcompiler: Parse assignments.

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This commit is contained in:
Matteo Bruni 2012-07-20 16:37:41 +02:00 committed by Alexandre Julliard
parent 6ccbccbb29
commit 1a36da15af
3 changed files with 244 additions and 1 deletions
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23
dlls/d3dcompiler_43/d3dcompiler_private.h
View file

@ -700,6 +700,7 @@ struct source_location
enum hlsl_ir_node_type
{
HLSL_IR_VAR = 0,
HLSL_IR_ASSIGNMENT,
HLSL_IR_CONSTANT,
HLSL_IR_CONSTRUCTOR,
HLSL_IR_DEREF,
@ -750,6 +751,14 @@ struct hlsl_ir_function_decl
struct list *body;
};
struct hlsl_ir_assignment
{
struct hlsl_ir_node node;
struct hlsl_ir_node *lhs;
struct hlsl_ir_node *rhs;
unsigned char writemask;
};
enum hlsl_ir_expr_op {
HLSL_IR_UNOP_BIT_NOT = 0,
HLSL_IR_UNOP_LOGIC_NOT,
@ -960,6 +969,12 @@ void hlsl_message(const char *fmt, ...) PRINTF_ATTR(1,2) DECLSPEC_HIDDEN;
void hlsl_report_message(const char *filename, DWORD line, DWORD column,
enum hlsl_error_level level, const char *fmt, ...) PRINTF_ATTR(5,6) DECLSPEC_HIDDEN;
static inline struct hlsl_ir_var *var_from_node(const struct hlsl_ir_node *node)
{
assert(node->type == HLSL_IR_VAR);
return CONTAINING_RECORD(node, struct hlsl_ir_var, node);
}
static inline struct hlsl_ir_expr *expr_from_node(const struct hlsl_ir_node *node)
{
assert(node->type == HLSL_IR_EXPR);
@ -978,6 +993,12 @@ static inline struct hlsl_ir_constant *constant_from_node(const struct hlsl_ir_n
return CONTAINING_RECORD(node, struct hlsl_ir_constant, node);
}
static inline struct hlsl_ir_assignment *assignment_from_node(const struct hlsl_ir_node *node)
{
assert(node->type == HLSL_IR_ASSIGNMENT);
return CONTAINING_RECORD(node, struct hlsl_ir_assignment, node);
}
static inline struct hlsl_ir_constructor *constructor_from_node(const struct hlsl_ir_node *node)
{
assert(node->type == HLSL_IR_CONSTRUCTOR);
@ -1020,6 +1041,8 @@ struct hlsl_ir_expr *hlsl_eq(struct hlsl_ir_node *op1, struct hlsl_ir_node *op2,
struct hlsl_ir_expr *hlsl_ne(struct hlsl_ir_node *op1, struct hlsl_ir_node *op2,
struct source_location *loc) DECLSPEC_HIDDEN;
struct hlsl_ir_deref *new_var_deref(struct hlsl_ir_var *var) DECLSPEC_HIDDEN;
struct hlsl_ir_node *make_assignment(struct hlsl_ir_node *left, enum parse_assign_op assign_op,
DWORD writemask, struct hlsl_ir_node *right) DECLSPEC_HIDDEN;
void push_scope(struct hlsl_parse_ctx *ctx) DECLSPEC_HIDDEN;
BOOL pop_scope(struct hlsl_parse_ctx *ctx) DECLSPEC_HIDDEN;
struct hlsl_ir_function_decl *new_func_decl(const char *name, struct hlsl_type *return_type, struct list *parameters) DECLSPEC_HIDDEN;

5
dlls/d3dcompiler_43/hlsl.y
View file

@ -1213,7 +1213,10 @@ assignment_expr: conditional_expr
}
| unary_expr assign_op assignment_expr
{
FIXME("Assignment\n");
$$ = make_assignment($1, $2, BWRITERSP_WRITEMASK_ALL, $3);
if (!$$)
return 1;
set_location(&$$->loc, &@2);
}
assign_op: '='

217
dlls/d3dcompiler_43/utils.c
View file

@ -947,6 +947,68 @@ static BOOL compare_hlsl_types(const struct hlsl_type *t1, const struct hlsl_typ
return TRUE;
}
static BOOL convertible_data_type(struct hlsl_type *type)
{
return type->type != HLSL_CLASS_OBJECT;
}
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 components_count_type(t1) == components_count_type(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 && compare_hlsl_types(t1->e.array.type, t2))
return TRUE;
if (components_count_type(t1) == components_count_type(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)
&& components_count_type(t1) == components_count_type(t2))
return TRUE;
return FALSE;
}
if (t1->type == HLSL_CLASS_STRUCT && t2->type == HLSL_CLASS_STRUCT)
return compare_hlsl_types(t1, t2);
return FALSE;
}
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)
@ -1340,6 +1402,120 @@ struct hlsl_ir_deref *new_var_deref(struct hlsl_ir_var *var)
return deref;
}
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];
}
struct hlsl_ir_node *make_assignment(struct hlsl_ir_node *left, enum parse_assign_op assign_op,
DWORD writemask, struct hlsl_ir_node *right)
{
struct hlsl_ir_expr *expr;
struct hlsl_ir_assignment *assign = d3dcompiler_alloc(sizeof(*assign));
struct hlsl_type *type;
struct hlsl_ir_node *lhs, *rhs;
if (!assign)
{
ERR("Out of memory\n");
return NULL;
}
TRACE("Creating proper assignment expression.\n");
rhs = right;
if (writemask == BWRITERSP_WRITEMASK_ALL)
type = left->data_type;
else
{
FIXME("Assignments with writemasks not supported yet.");
type = NULL;
}
assign->node.type = HLSL_IR_ASSIGNMENT;
assign->node.loc = left->loc;
assign->node.data_type = type;
assign->writemask = writemask;
FIXME("Check for casts in the lhs.\n");
lhs = left;
if (lhs->type == HLSL_IR_VAR)
{
struct hlsl_ir_deref *lhs_deref = new_var_deref(var_from_node(lhs));
lhs = &lhs_deref->node;
}
if (!compare_hlsl_types(type, rhs->data_type))
{
struct hlsl_ir_node *converted_rhs;
if (!implicit_compatible_data_types(rhs->data_type, type))
{
hlsl_report_message(rhs->loc.file, rhs->loc.line, rhs->loc.col, HLSL_LEVEL_ERROR,
"can't implicitly convert %s to %s",
debug_hlsl_type(rhs->data_type), debug_hlsl_type(type));
free_instr(lhs);
free_instr(rhs);
return NULL;
}
if (lhs->data_type->dimx * lhs->data_type->dimy < rhs->data_type->dimx * rhs->data_type->dimy)
hlsl_report_message(rhs->loc.file, rhs->loc.line, rhs->loc.col, HLSL_LEVEL_WARNING,
"implicit truncation of vector type");
converted_rhs = implicit_conversion(rhs, type, &rhs->loc);
if (!converted_rhs)
{
ERR("Couldn't implicitly convert expression to %s.", debug_hlsl_type(type));
free_instr(lhs);
free_instr(rhs);
return NULL;
}
rhs = converted_rhs;
}
assign->lhs = lhs;
if (assign_op != ASSIGN_OP_ASSIGN)
{
struct hlsl_ir_node *operands[3];
enum hlsl_ir_expr_op op = op_from_assignment(assign_op);
if (lhs->type != HLSL_IR_DEREF || deref_from_node(lhs)->type != HLSL_IR_DEREF_VAR)
{
FIXME("LHS expression not supported in compound assignments yet.\n");
assign->rhs = rhs;
}
else
{
struct hlsl_ir_deref *lhs_deref = deref_from_node(lhs), *new_deref;
TRACE("Adding an expression for the compound assignment.\n");
new_deref = new_var_deref(lhs_deref->v.var);
operands[0] = &new_deref->node;
operands[1] = rhs;
operands[2] = NULL;
expr = new_expr(op, operands, &left->loc);
assign->rhs = &expr->node;
}
}
else
assign->rhs = rhs;
return &assign->node;
}
void push_scope(struct hlsl_parse_ctx *ctx)
{
struct hlsl_scope *new_scope = d3dcompiler_alloc(sizeof(*new_scope));
@ -1477,6 +1653,7 @@ static const char *debug_node_type(enum hlsl_ir_node_type type)
const char *names[] =
{
"HLSL_IR_VAR",
"HLSL_IR_ASSIGNMENT",
"HLSL_IR_CONSTANT",
"HLSL_IR_CONSTRUCTOR",
"HLSL_IR_DEREF",
@ -1666,6 +1843,33 @@ static void debug_dump_ir_constructor(const struct hlsl_ir_constructor *construc
TRACE(")");
}
const char *debug_writemask(DWORD writemask)
{
char string[5], components[] = {'x', 'y', 'z', 'w'};
unsigned int i = 0, pos = 0;
while (writemask)
{
if (writemask & 1)
string[pos++] = components[i];
writemask >>= 1;
i++;
}
string[pos] = '\0';
return wine_dbg_sprintf(".%s", string);
}
void debug_dump_ir_assignment(const struct hlsl_ir_assignment *assign)
{
TRACE("= (");
debug_dump_instr(assign->lhs);
if (assign->writemask != BWRITERSP_WRITEMASK_ALL)
TRACE("%s", debug_writemask(assign->writemask));
TRACE(" ");
debug_dump_instr(assign->rhs);
TRACE(")");
}
void debug_dump_instr(const struct hlsl_ir_node *instr)
{
switch (instr->type)
@ -1679,6 +1883,9 @@ void debug_dump_instr(const struct hlsl_ir_node *instr)
case HLSL_IR_CONSTANT:
debug_dump_ir_constant(constant_from_node(instr));
break;
case HLSL_IR_ASSIGNMENT:
debug_dump_ir_assignment(assignment_from_node(instr));
break;
case HLSL_IR_CONSTRUCTOR:
debug_dump_ir_constructor(constructor_from_node(instr));
break;
@ -1806,6 +2013,13 @@ static void free_ir_expr(struct hlsl_ir_expr *expr)
d3dcompiler_free(expr);
}
static void free_ir_assignment(struct hlsl_ir_assignment *assignment)
{
free_instr(assignment->lhs);
free_instr(assignment->rhs);
d3dcompiler_free(assignment);
}
void free_instr(struct hlsl_ir_node *node)
{
switch (node->type)
@ -1825,6 +2039,9 @@ void free_instr(struct hlsl_ir_node *node)
case HLSL_IR_EXPR:
free_ir_expr(expr_from_node(node));
break;
case HLSL_IR_ASSIGNMENT:
free_ir_assignment(assignment_from_node(node));
break;
default:
FIXME("Unsupported node type %s\n", debug_node_type(node->type));
}