diff options
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index ddfaf3614ae..d7df41d893c 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -146,7 +146,7 @@ public: virtual ir_visitor_status accept(ir_hierarchical_visitor *); - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_rvalue * as_rvalue() { @@ -502,10 +502,11 @@ public: virtual ir_visitor_status accept(ir_hierarchical_visitor *); /** - * Attempt to evaluate this function as a constant expression, given - * a list of the actual parameters. Returns NULL for non-built-ins. + * Attempt to evaluate this function as a constant expression, + * given a list of the actual parameters and the variable context. + * Returns NULL for non-built-ins. */ - ir_constant *constant_expression_value(exec_list *actual_parameters); + ir_constant *constant_expression_value(exec_list *actual_parameters, struct hash_table *variable_context); /** * Get the name of the function for which this is a signature @@ -763,7 +764,7 @@ public: virtual ir_assignment *clone(void *mem_ctx, struct hash_table *ht) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual void accept(ir_visitor *v) { @@ -999,10 +1000,14 @@ public: /** * Attempt to constant-fold the expression * + * The "variable_context" hash table links ir_variable * to ir_constant * + * that represent the variables' values. \c NULL represents an empty + * context. + * * If the expression cannot be constant folded, this method will return * \c NULL. */ - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); /** * Determine the number of operands used by an expression @@ -1065,7 +1070,7 @@ public: virtual ir_call *clone(void *mem_ctx, struct hash_table *ht) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_call *as_call() { @@ -1297,7 +1302,7 @@ public: virtual ir_texture *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual void accept(ir_visitor *v) { @@ -1389,7 +1394,7 @@ public: virtual ir_swizzle *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_swizzle *as_swizzle() { @@ -1456,7 +1461,7 @@ public: virtual ir_dereference_variable *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_dereference_variable *as_dereference_variable() { @@ -1505,7 +1510,7 @@ public: virtual ir_dereference_array *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_dereference_array *as_dereference_array() { @@ -1544,7 +1549,7 @@ public: virtual ir_dereference_record *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); /** * Get the variable that is ultimately referenced by an r-value @@ -1609,7 +1614,7 @@ public: virtual ir_constant *clone(void *mem_ctx, struct hash_table *) const; - virtual ir_constant *constant_expression_value(); + virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); virtual ir_constant *as_constant() { |