diff options
-rw-r--r-- | ir.cpp | 13 | ||||
-rw-r--r-- | ir.h | 12 |
2 files changed, 25 insertions, 0 deletions
@@ -227,6 +227,19 @@ ir_constant::ir_constant(bool b) this->value.b[0] = b; } +ir_constant::ir_constant(const ir_constant *c, unsigned i) +{ + this->type = c->type->get_base_type(); + + switch (this->type->base_type) { + case GLSL_TYPE_UINT: this->value.u[0] = c->value.u[i]; break; + case GLSL_TYPE_INT: this->value.i[0] = c->value.i[i]; break; + case GLSL_TYPE_FLOAT: this->value.f[0] = c->value.f[i]; break; + case GLSL_TYPE_BOOL: this->value.b[0] = c->value.b[i]; break; + default: assert(!"Should not get here."); break; + } +} + ir_dereference_variable::ir_dereference_variable(ir_variable *var) { @@ -1026,6 +1026,18 @@ public: ir_constant(int i); ir_constant(float f); + /** + * Construct an ir_constant from a scalar component of another ir_constant + * + * The new \c ir_constant inherits the type of the component from the + * source constant. + * + * \note + * In the case of a matrix constant, the new constant is a scalar, \b not + * a vector. + */ + ir_constant(const ir_constant *c, unsigned i); + virtual ir_constant *as_constant() { return this; |