* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
-#include "main/imports.h"
-#include "main/macros.h"
+#include "main/core.h" /* for MAX2 */
#include "ir.h"
#include "ir_visitor.h"
#include "glsl_types.h"
this->type = glsl_type::error_type;
}
+bool ir_rvalue::is_zero() const
+{
+ return false;
+}
+
+bool ir_rvalue::is_one() const
+{
+ return false;
+}
+
+bool ir_rvalue::is_negative_one() const
+{
+ return false;
+}
+
+bool ir_rvalue::is_basis() const
+{
+ return false;
+}
+
/**
* Modify the swizzle make to move one component to another
*
void
ir_assignment::set_lhs(ir_rvalue *lhs)
{
+ void *mem_ctx = this;
+ bool swizzled = false;
+
while (lhs != NULL) {
ir_swizzle *swiz = lhs->as_swizzle();
this->write_mask = write_mask;
lhs = swiz->val;
- this->rhs = new(this) ir_swizzle(this->rhs, rhs_swiz);
+ this->rhs = new(mem_ctx) ir_swizzle(this->rhs, rhs_swiz);
+ swizzled = true;
+ }
+
+ if (swizzled) {
+ /* Now, RHS channels line up with the LHS writemask. Collapse it
+ * to just the channels that will be written.
+ */
+ ir_swizzle_mask rhs_swiz = { 0, 0, 0, 0, 0, 0 };
+ int rhs_chan = 0;
+ for (int i = 0; i < 4; i++) {
+ if (write_mask & (1 << i))
+ update_rhs_swizzle(rhs_swiz, i, rhs_chan++);
+ }
+ this->rhs = new(mem_ctx) ir_swizzle(this->rhs, rhs_swiz);
}
assert((lhs == NULL) || lhs->as_dereference());
this->rhs = rhs;
this->lhs = lhs;
this->write_mask = write_mask;
+
+ if (lhs->type->is_scalar() || lhs->type->is_vector()) {
+ int lhs_components = 0;
+ for (int i = 0; i < 4; i++) {
+ if (write_mask & (1 << i))
+ lhs_components++;
+ }
+
+ assert(lhs_components == this->rhs->type->vector_elements);
+ }
}
ir_assignment::ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs,
this->set_lhs(lhs);
}
-
ir_expression::ir_expression(int op, const struct glsl_type *type,
- ir_rvalue *op0, ir_rvalue *op1)
+ ir_rvalue *op0, ir_rvalue *op1,
+ ir_rvalue *op2, ir_rvalue *op3)
{
this->ir_type = ir_type_expression;
this->type = type;
this->operation = ir_expression_operation(op);
this->operands[0] = op0;
this->operands[1] = op1;
+ this->operands[2] = op2;
+ this->operands[3] = op3;
+#ifndef NDEBUG
+ int num_operands = get_num_operands(this->operation);
+ for (int i = num_operands; i < 4; i++) {
+ assert(this->operands[i] == NULL);
+ }
+#endif
+}
+
+ir_expression::ir_expression(int op, ir_rvalue *op0)
+{
+ this->ir_type = ir_type_expression;
+
+ this->operation = ir_expression_operation(op);
+ this->operands[0] = op0;
+ this->operands[1] = NULL;
+ this->operands[2] = NULL;
+ this->operands[3] = NULL;
+
+ assert(op <= ir_last_unop);
+
+ switch (this->operation) {
+ case ir_unop_bit_not:
+ case ir_unop_logic_not:
+ case ir_unop_neg:
+ case ir_unop_abs:
+ case ir_unop_sign:
+ case ir_unop_rcp:
+ case ir_unop_rsq:
+ case ir_unop_sqrt:
+ case ir_unop_exp:
+ case ir_unop_log:
+ case ir_unop_exp2:
+ case ir_unop_log2:
+ case ir_unop_trunc:
+ case ir_unop_ceil:
+ case ir_unop_floor:
+ case ir_unop_fract:
+ case ir_unop_round_even:
+ case ir_unop_sin:
+ case ir_unop_cos:
+ case ir_unop_sin_reduced:
+ case ir_unop_cos_reduced:
+ case ir_unop_dFdx:
+ case ir_unop_dFdy:
+ case ir_unop_bitfield_reverse:
+ this->type = op0->type;
+ break;
+
+ case ir_unop_f2i:
+ case ir_unop_b2i:
+ case ir_unop_u2i:
+ case ir_unop_bitcast_f2i:
+ case ir_unop_bit_count:
+ case ir_unop_find_msb:
+ case ir_unop_find_lsb:
+ this->type = glsl_type::get_instance(GLSL_TYPE_INT,
+ op0->type->vector_elements, 1);
+ break;
+
+ case ir_unop_b2f:
+ case ir_unop_i2f:
+ case ir_unop_u2f:
+ case ir_unop_bitcast_i2f:
+ case ir_unop_bitcast_u2f:
+ this->type = glsl_type::get_instance(GLSL_TYPE_FLOAT,
+ op0->type->vector_elements, 1);
+ break;
+
+ case ir_unop_f2b:
+ case ir_unop_i2b:
+ this->type = glsl_type::get_instance(GLSL_TYPE_BOOL,
+ op0->type->vector_elements, 1);
+ break;
+
+ case ir_unop_i2u:
+ case ir_unop_f2u:
+ case ir_unop_bitcast_f2u:
+ this->type = glsl_type::get_instance(GLSL_TYPE_UINT,
+ op0->type->vector_elements, 1);
+ break;
+
+ case ir_unop_noise:
+ case ir_unop_unpack_half_2x16_split_x:
+ case ir_unop_unpack_half_2x16_split_y:
+ this->type = glsl_type::float_type;
+ break;
+
+ case ir_unop_any:
+ this->type = glsl_type::bool_type;
+ break;
+
+ case ir_unop_pack_snorm_2x16:
+ case ir_unop_pack_snorm_4x8:
+ case ir_unop_pack_unorm_2x16:
+ case ir_unop_pack_unorm_4x8:
+ case ir_unop_pack_half_2x16:
+ this->type = glsl_type::uint_type;
+ break;
+
+ case ir_unop_unpack_snorm_2x16:
+ case ir_unop_unpack_unorm_2x16:
+ case ir_unop_unpack_half_2x16:
+ this->type = glsl_type::vec2_type;
+ break;
+
+ case ir_unop_unpack_snorm_4x8:
+ case ir_unop_unpack_unorm_4x8:
+ this->type = glsl_type::vec4_type;
+ break;
+
+ default:
+ assert(!"not reached: missing automatic type setup for ir_expression");
+ this->type = op0->type;
+ break;
+ }
+}
+
+ir_expression::ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1)
+{
+ this->ir_type = ir_type_expression;
+
+ this->operation = ir_expression_operation(op);
+ this->operands[0] = op0;
+ this->operands[1] = op1;
+ this->operands[2] = NULL;
+ this->operands[3] = NULL;
+
+ assert(op > ir_last_unop);
+
+ switch (this->operation) {
+ case ir_binop_all_equal:
+ case ir_binop_any_nequal:
+ this->type = glsl_type::bool_type;
+ break;
+
+ case ir_binop_add:
+ case ir_binop_sub:
+ case ir_binop_min:
+ case ir_binop_max:
+ case ir_binop_pow:
+ case ir_binop_mul:
+ case ir_binop_div:
+ case ir_binop_mod:
+ if (op0->type->is_scalar()) {
+ this->type = op1->type;
+ } else if (op1->type->is_scalar()) {
+ this->type = op0->type;
+ } else {
+ /* FINISHME: matrix types */
+ assert(!op0->type->is_matrix() && !op1->type->is_matrix());
+ assert(op0->type == op1->type);
+ this->type = op0->type;
+ }
+ break;
+
+ case ir_binop_logic_and:
+ case ir_binop_logic_xor:
+ case ir_binop_logic_or:
+ case ir_binop_bit_and:
+ case ir_binop_bit_xor:
+ case ir_binop_bit_or:
+ assert(!op0->type->is_matrix());
+ assert(!op1->type->is_matrix());
+ if (op0->type->is_scalar()) {
+ this->type = op1->type;
+ } else if (op1->type->is_scalar()) {
+ this->type = op0->type;
+ } else {
+ assert(op0->type->vector_elements == op1->type->vector_elements);
+ this->type = op0->type;
+ }
+ break;
+
+ case ir_binop_equal:
+ case ir_binop_nequal:
+ case ir_binop_lequal:
+ case ir_binop_gequal:
+ case ir_binop_less:
+ case ir_binop_greater:
+ assert(op0->type == op1->type);
+ this->type = glsl_type::get_instance(GLSL_TYPE_BOOL,
+ op0->type->vector_elements, 1);
+ break;
+
+ case ir_binop_dot:
+ this->type = glsl_type::float_type;
+ break;
+
+ case ir_binop_pack_half_2x16_split:
+ this->type = glsl_type::uint_type;
+ break;
+
+ case ir_binop_imul_high:
+ case ir_binop_carry:
+ case ir_binop_borrow:
+ case ir_binop_lshift:
+ case ir_binop_rshift:
+ case ir_binop_bfm:
+ case ir_binop_ldexp:
+ this->type = op0->type;
+ break;
+
+ case ir_binop_vector_extract:
+ this->type = op0->type->get_scalar_type();
+ break;
+
+ default:
+ assert(!"not reached: missing automatic type setup for ir_expression");
+ this->type = glsl_type::float_type;
+ }
+}
+
+ir_expression::ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1,
+ ir_rvalue *op2)
+{
+ this->ir_type = ir_type_expression;
+
+ this->operation = ir_expression_operation(op);
+ this->operands[0] = op0;
+ this->operands[1] = op1;
+ this->operands[2] = op2;
+ this->operands[3] = NULL;
+
+ assert(op > ir_last_binop && op <= ir_last_triop);
+
+ switch (this->operation) {
+ case ir_triop_fma:
+ case ir_triop_lrp:
+ case ir_triop_bitfield_extract:
+ case ir_triop_vector_insert:
+ this->type = op0->type;
+ break;
+
+ case ir_triop_bfi:
+ case ir_triop_csel:
+ this->type = op1->type;
+ break;
+
+ default:
+ assert(!"not reached: missing automatic type setup for ir_expression");
+ this->type = glsl_type::float_type;
+ }
}
unsigned int
ir_expression::get_num_operands(ir_expression_operation op)
{
-/* Update ir_print_visitor.cpp when updating this list. */
- const int num_operands[] = {
- 1, /* ir_unop_bit_not */
- 1, /* ir_unop_logic_not */
- 1, /* ir_unop_neg */
- 1, /* ir_unop_abs */
- 1, /* ir_unop_sign */
- 1, /* ir_unop_rcp */
- 1, /* ir_unop_rsq */
- 1, /* ir_unop_sqrt */
- 1, /* ir_unop_exp */
- 1, /* ir_unop_log */
- 1, /* ir_unop_exp2 */
- 1, /* ir_unop_log2 */
- 1, /* ir_unop_f2i */
- 1, /* ir_unop_i2f */
- 1, /* ir_unop_f2b */
- 1, /* ir_unop_b2f */
- 1, /* ir_unop_i2b */
- 1, /* ir_unop_b2i */
- 1, /* ir_unop_u2f */
-
- 1, /* ir_unop_trunc */
- 1, /* ir_unop_ceil */
- 1, /* ir_unop_floor */
- 1, /* ir_unop_fract */
-
- 1, /* ir_unop_sin */
- 1, /* ir_unop_cos */
-
- 1, /* ir_unop_dFdx */
- 1, /* ir_unop_dFdy */
-
- 2, /* ir_binop_add */
- 2, /* ir_binop_sub */
- 2, /* ir_binop_mul */
- 2, /* ir_binop_div */
- 2, /* ir_binop_mod */
-
- 2, /* ir_binop_less */
- 2, /* ir_binop_greater */
- 2, /* ir_binop_lequal */
- 2, /* ir_binop_gequal */
- 2, /* ir_binop_equal */
- 2, /* ir_binop_nequal */
-
- 2, /* ir_binop_lshift */
- 2, /* ir_binop_rshift */
- 2, /* ir_binop_bit_and */
- 2, /* ir_binop_bit_xor */
- 2, /* ir_binop_bit_or */
-
- 2, /* ir_binop_logic_and */
- 2, /* ir_binop_logic_xor */
- 2, /* ir_binop_logic_or */
-
- 2, /* ir_binop_dot */
- 2, /* ir_binop_cross */
- 2, /* ir_binop_min */
- 2, /* ir_binop_max */
-
- 2, /* ir_binop_pow */
- };
+ assert(op <= ir_last_opcode);
+
+ if (op <= ir_last_unop)
+ return 1;
- assert(sizeof(num_operands) / sizeof(num_operands[0]) == ir_binop_pow + 1);
+ if (op <= ir_last_binop)
+ return 2;
- return num_operands[op];
+ if (op <= ir_last_triop)
+ return 3;
+
+ if (op <= ir_last_quadop)
+ return 4;
+
+ assert(false);
+ return 0;
}
static const char *const operator_strs[] = {
"exp2",
"log2",
"f2i",
+ "f2u",
"i2f",
"f2b",
"b2f",
"i2b",
"b2i",
"u2f",
+ "i2u",
+ "u2i",
+ "bitcast_i2f",
+ "bitcast_f2i",
+ "bitcast_u2f",
+ "bitcast_f2u",
+ "any",
"trunc",
"ceil",
"floor",
"fract",
+ "round_even",
"sin",
"cos",
+ "sin_reduced",
+ "cos_reduced",
"dFdx",
"dFdy",
+ "packSnorm2x16",
+ "packSnorm4x8",
+ "packUnorm2x16",
+ "packUnorm4x8",
+ "packHalf2x16",
+ "unpackSnorm2x16",
+ "unpackSnorm4x8",
+ "unpackUnorm2x16",
+ "unpackUnorm4x8",
+ "unpackHalf2x16",
+ "unpackHalf2x16_split_x",
+ "unpackHalf2x16_split_y",
+ "bitfield_reverse",
+ "bit_count",
+ "find_msb",
+ "find_lsb",
+ "noise",
"+",
"-",
"*",
+ "imul_high",
"/",
+ "carry",
+ "borrow",
"%",
"<",
">",
">=",
"==",
"!=",
+ "all_equal",
+ "any_nequal",
"<<",
">>",
"&",
"^^",
"||",
"dot",
- "cross",
"min",
"max",
"pow",
+ "packHalf2x16_split",
+ "bfm",
+ "ubo_load",
+ "ldexp",
+ "vector_extract",
+ "fma",
+ "lrp",
+ "csel",
+ "bfi",
+ "bitfield_extract",
+ "vector_insert",
+ "bitfield_insert",
+ "vector",
};
+const char *ir_expression::operator_string(ir_expression_operation op)
+{
+ assert((unsigned int) op < Elements(operator_strs));
+ assert(Elements(operator_strs) == (ir_quadop_vector + 1));
+ return operator_strs[op];
+}
+
const char *ir_expression::operator_string()
{
- assert((unsigned int) operation <=
- sizeof(operator_strs) / sizeof(operator_strs[0]));
- return operator_strs[operation];
+ return operator_string(this->operation);
+}
+
+const char*
+depth_layout_string(ir_depth_layout layout)
+{
+ switch(layout) {
+ case ir_depth_layout_none: return "";
+ case ir_depth_layout_any: return "depth_any";
+ case ir_depth_layout_greater: return "depth_greater";
+ case ir_depth_layout_less: return "depth_less";
+ case ir_depth_layout_unchanged: return "depth_unchanged";
+
+ default:
+ assert(0);
+ return "";
+ }
}
ir_expression_operation
memcpy(& this->value, data, sizeof(this->value));
}
-ir_constant::ir_constant(float f)
+ir_constant::ir_constant(float f, unsigned vector_elements)
{
+ assert(vector_elements <= 4);
this->ir_type = ir_type_constant;
- this->type = glsl_type::float_type;
- this->value.f[0] = f;
+ this->type = glsl_type::get_instance(GLSL_TYPE_FLOAT, vector_elements, 1);
+ for (unsigned i = 0; i < vector_elements; i++) {
+ this->value.f[i] = f;
+ }
+ for (unsigned i = vector_elements; i < 16; i++) {
+ this->value.f[i] = 0;
+ }
}
-ir_constant::ir_constant(unsigned int u)
+ir_constant::ir_constant(unsigned int u, unsigned vector_elements)
{
+ assert(vector_elements <= 4);
this->ir_type = ir_type_constant;
- this->type = glsl_type::uint_type;
- this->value.u[0] = u;
+ this->type = glsl_type::get_instance(GLSL_TYPE_UINT, vector_elements, 1);
+ for (unsigned i = 0; i < vector_elements; i++) {
+ this->value.u[i] = u;
+ }
+ for (unsigned i = vector_elements; i < 16; i++) {
+ this->value.u[i] = 0;
+ }
}
-ir_constant::ir_constant(int i)
+ir_constant::ir_constant(int integer, unsigned vector_elements)
{
+ assert(vector_elements <= 4);
this->ir_type = ir_type_constant;
- this->type = glsl_type::int_type;
- this->value.i[0] = i;
+ this->type = glsl_type::get_instance(GLSL_TYPE_INT, vector_elements, 1);
+ for (unsigned i = 0; i < vector_elements; i++) {
+ this->value.i[i] = integer;
+ }
+ for (unsigned i = vector_elements; i < 16; i++) {
+ this->value.i[i] = 0;
+ }
}
-ir_constant::ir_constant(bool b)
+ir_constant::ir_constant(bool b, unsigned vector_elements)
{
+ assert(vector_elements <= 4);
this->ir_type = ir_type_constant;
- this->type = glsl_type::bool_type;
- this->value.b[0] = b;
+ this->type = glsl_type::get_instance(GLSL_TYPE_BOOL, vector_elements, 1);
+ for (unsigned i = 0; i < vector_elements; i++) {
+ this->value.b[i] = b;
+ }
+ for (unsigned i = vector_elements; i < 16; i++) {
+ this->value.b[i] = false;
+ }
}
ir_constant::ir_constant(const ir_constant *c, unsigned i)
|| type->is_record() || type->is_array());
if (type->is_array()) {
- this->array_elements = talloc_array(this, ir_constant *, type->length);
+ this->array_elements = ralloc_array(this, ir_constant *, type->length);
unsigned i = 0;
foreach_list(node, value_list) {
ir_constant *value = (ir_constant *) node;
return;
}
+ for (unsigned i = 0; i < 16; i++) {
+ this->value.u[i] = 0;
+ }
ir_constant *value = (ir_constant *) (value_list->head);
+ /* Constructors with exactly one scalar argument are special for vectors
+ * and matrices. For vectors, the scalar value is replicated to fill all
+ * the components. For matrices, the scalar fills the components of the
+ * diagonal while the rest is filled with 0.
+ */
+ if (value->type->is_scalar() && value->next->is_tail_sentinel()) {
+ if (type->is_matrix()) {
+ /* Matrix - fill diagonal (rest is already set to 0) */
+ assert(type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned i = 0; i < type->matrix_columns; i++)
+ this->value.f[i * type->vector_elements + i] = value->value.f[0];
+ } else {
+ /* Vector or scalar - fill all components */
+ switch (type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.u[i] = value->value.u[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.f[i] = value->value.f[0];
+ break;
+ case GLSL_TYPE_BOOL:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.b[i] = value->value.b[0];
+ break;
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+ }
+ return;
+ }
+
+ if (type->is_matrix() && value->type->is_matrix()) {
+ assert(value->next->is_tail_sentinel());
+
+ /* From section 5.4.2 of the GLSL 1.20 spec:
+ * "If a matrix is constructed from a matrix, then each component
+ * (column i, row j) in the result that has a corresponding component
+ * (column i, row j) in the argument will be initialized from there."
+ */
+ unsigned cols = MIN2(type->matrix_columns, value->type->matrix_columns);
+ unsigned rows = MIN2(type->vector_elements, value->type->vector_elements);
+ for (unsigned i = 0; i < cols; i++) {
+ for (unsigned j = 0; j < rows; j++) {
+ const unsigned src = i * value->type->vector_elements + j;
+ const unsigned dst = i * type->vector_elements + j;
+ this->value.f[dst] = value->value.f[src];
+ }
+ }
+
+ /* "All other components will be initialized to the identity matrix." */
+ for (unsigned i = cols; i < type->matrix_columns; i++)
+ this->value.f[i * type->vector_elements + i] = 1.0;
+
+ return;
+ }
+
/* Use each component from each entry in the value_list to initialize one
* component of the constant being constructed.
*/
ir_constant *
ir_constant::zero(void *mem_ctx, const glsl_type *type)
{
- assert(type->is_numeric());
+ assert(type->is_scalar() || type->is_vector() || type->is_matrix()
+ || type->is_record() || type->is_array());
ir_constant *c = new(mem_ctx) ir_constant;
c->type = type;
memset(&c->value, 0, sizeof(c->value));
+ if (type->is_array()) {
+ c->array_elements = ralloc_array(c, ir_constant *, type->length);
+
+ for (unsigned i = 0; i < type->length; i++)
+ c->array_elements[i] = ir_constant::zero(c, type->element_type());
+ }
+
+ if (type->is_record()) {
+ for (unsigned i = 0; i < type->length; i++) {
+ ir_constant *comp = ir_constant::zero(mem_ctx, type->fields.structure[i].type);
+ c->components.push_tail(comp);
+ }
+ }
+
return c;
}
case GLSL_TYPE_UINT: return (float) this->value.u[i];
case GLSL_TYPE_INT: return (float) this->value.i[i];
case GLSL_TYPE_FLOAT: return this->value.f[i];
- case GLSL_TYPE_BOOL: return this->value.b[i] ? 1.0 : 0.0;
+ case GLSL_TYPE_BOOL: return this->value.b[i] ? 1.0f : 0.0f;
default: assert(!"Should not get here."); break;
}
ir_constant::get_array_element(unsigned i) const
{
assert(this->type->is_array());
- assert(i < this->type->length);
+
+ /* From page 35 (page 41 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "Behavior is undefined if a shader subscripts an array with an index
+ * less than 0 or greater than or equal to the size the array was
+ * declared with."
+ *
+ * Most out-of-bounds accesses are removed before things could get this far.
+ * There are cases where non-constant array index values can get constant
+ * folded.
+ */
+ if (int(i) < 0)
+ i = 0;
+ else if (i >= this->type->length)
+ i = this->type->length - 1;
return array_elements[i];
}
return (ir_constant *) node;
}
+void
+ir_constant::copy_offset(ir_constant *src, int offset)
+{
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ case GLSL_TYPE_FLOAT:
+ case GLSL_TYPE_BOOL: {
+ unsigned int size = src->type->components();
+ assert (size <= this->type->components() - offset);
+ for (unsigned int i=0; i<size; i++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ value.u[i+offset] = src->get_uint_component(i);
+ break;
+ case GLSL_TYPE_INT:
+ value.i[i+offset] = src->get_int_component(i);
+ break;
+ case GLSL_TYPE_FLOAT:
+ value.f[i+offset] = src->get_float_component(i);
+ break;
+ case GLSL_TYPE_BOOL:
+ value.b[i+offset] = src->get_bool_component(i);
+ break;
+ default: // Shut up the compiler
+ break;
+ }
+ }
+ break;
+ }
+
+ case GLSL_TYPE_STRUCT: {
+ assert (src->type == this->type);
+ this->components.make_empty();
+ foreach_list(node, &src->components) {
+ ir_constant *const orig = (ir_constant *) node;
+
+ this->components.push_tail(orig->clone(this, NULL));
+ }
+ break;
+ }
+
+ case GLSL_TYPE_ARRAY: {
+ assert (src->type == this->type);
+ for (unsigned i = 0; i < this->type->length; i++) {
+ this->array_elements[i] = src->array_elements[i]->clone(this, NULL);
+ }
+ break;
+ }
+
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+}
+
+void
+ir_constant::copy_masked_offset(ir_constant *src, int offset, unsigned int mask)
+{
+ assert (!type->is_array() && !type->is_record());
+
+ if (!type->is_vector() && !type->is_matrix()) {
+ offset = 0;
+ mask = 1;
+ }
+
+ int id = 0;
+ for (int i=0; i<4; i++) {
+ if (mask & (1 << i)) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ value.u[i+offset] = src->get_uint_component(id++);
+ break;
+ case GLSL_TYPE_INT:
+ value.i[i+offset] = src->get_int_component(id++);
+ break;
+ case GLSL_TYPE_FLOAT:
+ value.f[i+offset] = src->get_float_component(id++);
+ break;
+ case GLSL_TYPE_BOOL:
+ value.b[i+offset] = src->get_bool_component(id++);
+ break;
+ default:
+ assert(!"Should not get here.");
+ return;
+ }
+ }
+ }
+}
bool
ir_constant::has_value(const ir_constant *c) const
if (this->type->is_array()) {
for (unsigned i = 0; i < this->type->length; i++) {
- if (this->array_elements[i]->has_value(c->array_elements[i]))
+ if (!this->array_elements[i]->has_value(c->array_elements[i]))
return false;
}
return true;
return true;
}
+bool
+ir_constant::is_zero() const
+{
+ if (!this->type->is_scalar() && !this->type->is_vector())
+ return false;
+
+ for (unsigned c = 0; c < this->type->vector_elements; c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (this->value.f[c] != 0.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (this->value.i[c] != 0)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (this->value.u[c] != 0)
+ return false;
+ break;
+ case GLSL_TYPE_BOOL:
+ if (this->value.b[c] != false)
+ return false;
+ break;
+ default:
+ /* The only other base types are structures, arrays, and samplers.
+ * Samplers cannot be constants, and the others should have been
+ * filtered out above.
+ */
+ assert(!"Should not get here.");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool
+ir_constant::is_one() const
+{
+ if (!this->type->is_scalar() && !this->type->is_vector())
+ return false;
+
+ for (unsigned c = 0; c < this->type->vector_elements; c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (this->value.f[c] != 1.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (this->value.i[c] != 1)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (this->value.u[c] != 1)
+ return false;
+ break;
+ case GLSL_TYPE_BOOL:
+ if (this->value.b[c] != true)
+ return false;
+ break;
+ default:
+ /* The only other base types are structures, arrays, and samplers.
+ * Samplers cannot be constants, and the others should have been
+ * filtered out above.
+ */
+ assert(!"Should not get here.");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool
+ir_constant::is_negative_one() const
+{
+ if (!this->type->is_scalar() && !this->type->is_vector())
+ return false;
+
+ if (this->type->is_boolean())
+ return false;
+
+ for (unsigned c = 0; c < this->type->vector_elements; c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (this->value.f[c] != -1.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (this->value.i[c] != -1)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (int(this->value.u[c]) != -1)
+ return false;
+ break;
+ default:
+ /* The only other base types are structures, arrays, samplers, and
+ * booleans. Samplers cannot be constants, and the others should
+ * have been filtered out above.
+ */
+ assert(!"Should not get here.");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool
+ir_constant::is_basis() const
+{
+ if (!this->type->is_scalar() && !this->type->is_vector())
+ return false;
+
+ if (this->type->is_boolean())
+ return false;
+
+ unsigned ones = 0;
+ for (unsigned c = 0; c < this->type->vector_elements; c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (this->value.f[c] == 1.0)
+ ones++;
+ else if (this->value.f[c] != 0.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (this->value.i[c] == 1)
+ ones++;
+ else if (this->value.i[c] != 0)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (int(this->value.u[c]) == 1)
+ ones++;
+ else if (int(this->value.u[c]) != 0)
+ return false;
+ break;
+ default:
+ /* The only other base types are structures, arrays, samplers, and
+ * booleans. Samplers cannot be constants, and the others should
+ * have been filtered out above.
+ */
+ assert(!"Should not get here.");
+ return false;
+ }
+ }
+
+ return ones == 1;
+}
+
+ir_loop::ir_loop()
+{
+ this->ir_type = ir_type_loop;
+}
+
+
ir_dereference_variable::ir_dereference_variable(ir_variable *var)
{
+ assert(var != NULL);
+
this->ir_type = ir_type_dereference_variable;
this->var = var;
- this->type = (var != NULL) ? var->type : glsl_type::error_type;
+ this->type = var->type;
}
ir_dereference_array::ir_dereference_array(ir_variable *var,
ir_rvalue *array_index)
{
- void *ctx = talloc_parent(var);
+ void *ctx = ralloc_parent(var);
this->ir_type = ir_type_dereference_array;
this->array_index = array_index;
void
ir_dereference_array::set_array(ir_rvalue *value)
{
+ assert(value != NULL);
+
this->array = value;
- this->type = glsl_type::error_type;
- if (this->array != NULL) {
- const glsl_type *const vt = this->array->type;
+ const glsl_type *const vt = this->array->type;
- if (vt->is_array()) {
- type = vt->element_type();
- } else if (vt->is_matrix()) {
- type = vt->column_type();
- } else if (vt->is_vector()) {
- type = vt->get_base_type();
- }
+ if (vt->is_array()) {
+ type = vt->element_type();
+ } else if (vt->is_matrix()) {
+ type = vt->column_type();
+ } else if (vt->is_vector()) {
+ type = vt->get_base_type();
}
}
ir_dereference_record::ir_dereference_record(ir_rvalue *value,
const char *field)
{
+ assert(value != NULL);
+
this->ir_type = ir_type_dereference_record;
this->record = value;
- this->field = talloc_strdup(this, field);
- this->type = (this->record != NULL)
- ? this->record->type->field_type(field) : glsl_type::error_type;
+ this->field = ralloc_strdup(this, field);
+ this->type = this->record->type->field_type(field);
}
ir_dereference_record::ir_dereference_record(ir_variable *var,
const char *field)
{
- void *ctx = talloc_parent(var);
+ void *ctx = ralloc_parent(var);
this->ir_type = ir_type_dereference_record;
this->record = new(ctx) ir_dereference_variable(var);
- this->field = talloc_strdup(this, field);
- this->type = (this->record != NULL)
- ? this->record->type->field_type(field) : glsl_type::error_type;
+ this->field = ralloc_strdup(this, field);
+ this->type = this->record->type->field_type(field);
}
-
bool
-ir_dereference::is_lvalue()
+ir_dereference::is_lvalue() const
{
ir_variable *var = this->variable_referenced();
/* Every l-value derference chain eventually ends in a variable.
*/
- if ((var == NULL) || var->read_only)
+ if ((var == NULL) || var->data.read_only)
return false;
- if (this->type->is_array() && !var->array_lvalue)
+ /* From page 17 (page 23 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "Samplers cannot be treated as l-values; hence cannot be used
+ * as out or inout function parameters, nor can they be
+ * assigned into."
+ */
+ if (this->type->contains_sampler())
return false;
return true;
}
-const char *tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf" };
+static const char *tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod", "tg4", "query_levels" };
const char *ir_texture::opcode_string()
{
void
-ir_texture::set_sampler(ir_dereference *sampler)
+ir_texture::set_sampler(ir_dereference *sampler, const glsl_type *type)
{
assert(sampler != NULL);
+ assert(type != NULL);
this->sampler = sampler;
+ this->type = type;
- switch (sampler->type->sampler_type) {
- case GLSL_TYPE_FLOAT:
- this->type = glsl_type::vec4_type;
- break;
- case GLSL_TYPE_INT:
- this->type = glsl_type::ivec4_type;
- break;
- case GLSL_TYPE_UINT:
- this->type = glsl_type::uvec4_type;
- break;
+ if (this->op == ir_txs || this->op == ir_query_levels) {
+ assert(type->base_type == GLSL_TYPE_INT);
+ } else if (this->op == ir_lod) {
+ assert(type->vector_elements == 2);
+ assert(type->base_type == GLSL_TYPE_FLOAT);
+ } else {
+ assert(sampler->type->sampler_type == (int) type->base_type);
+ if (sampler->type->sampler_shadow)
+ assert(type->vector_elements == 4 || type->vector_elements == 1);
+ else
+ assert(type->vector_elements == 4);
}
}
ir_swizzle *
ir_swizzle::create(ir_rvalue *val, const char *str, unsigned vector_length)
{
- void *ctx = talloc_parent(val);
+ void *ctx = ralloc_parent(val);
/* For each possible swizzle character, this table encodes the value in
* \c idx_map that represents the 0th element of the vector. For invalid
#undef I
ir_variable *
-ir_swizzle::variable_referenced()
+ir_swizzle::variable_referenced() const
{
return this->val->variable_referenced();
}
ir_variable::ir_variable(const struct glsl_type *type, const char *name,
ir_variable_mode mode)
- : max_array_access(0), read_only(false), centroid(false), invariant(false),
- mode(mode), interpolation(ir_var_smooth), array_lvalue(false)
+ : max_array_access(0), max_ifc_array_access(NULL),
+ how_declared(ir_var_declared_normally), mode(mode),
+ interpolation(INTERP_QUALIFIER_NONE), atomic()
{
this->ir_type = ir_type_variable;
this->type = type;
- this->name = talloc_strdup(this, name);
+ this->name = ralloc_strdup(this, name);
+ this->explicit_location = false;
+ this->has_initializer = false;
this->location = -1;
+ this->location_frac = 0;
this->warn_extension = NULL;
this->constant_value = NULL;
+ this->constant_initializer = NULL;
this->origin_upper_left = false;
this->pixel_center_integer = false;
-
- if (type && type->base_type == GLSL_TYPE_SAMPLER)
- this->read_only = true;
+ this->depth_layout = ir_depth_layout_none;
+ this->used = false;
+ this->data.read_only = false;
+ this->data.centroid = false;
+ this->data.sample = false;
+ this->data.invariant = false;
+
+ if (type != NULL) {
+ if (type->base_type == GLSL_TYPE_SAMPLER)
+ this->data.read_only = true;
+
+ if (type->is_interface())
+ this->init_interface_type(type);
+ else if (type->is_array() && type->fields.array->is_interface())
+ this->init_interface_type(type->fields.array);
+ }
}
const char *
-ir_variable::interpolation_string() const
+interpolation_string(unsigned interpolation)
{
- switch (this->interpolation) {
- case ir_var_smooth: return "smooth";
- case ir_var_flat: return "flat";
- case ir_var_noperspective: return "noperspective";
+ switch (interpolation) {
+ case INTERP_QUALIFIER_NONE: return "no";
+ case INTERP_QUALIFIER_SMOOTH: return "smooth";
+ case INTERP_QUALIFIER_FLAT: return "flat";
+ case INTERP_QUALIFIER_NOPERSPECTIVE: return "noperspective";
}
assert(!"Should not get here.");
}
-unsigned
-ir_variable::component_slots() const
+glsl_interp_qualifier
+ir_variable::determine_interpolation_mode(bool flat_shade)
{
- /* FINISHME: Sparsely accessed arrays require fewer slots. */
- return this->type->component_slots();
+ if (this->interpolation != INTERP_QUALIFIER_NONE)
+ return (glsl_interp_qualifier) this->interpolation;
+ int location = this->location;
+ bool is_gl_Color =
+ location == VARYING_SLOT_COL0 || location == VARYING_SLOT_COL1;
+ if (flat_shade && is_gl_Color)
+ return INTERP_QUALIFIER_FLAT;
+ else
+ return INTERP_QUALIFIER_SMOOTH;
}
-ir_function_signature::ir_function_signature(const glsl_type *return_type)
- : return_type(return_type), is_defined(false), _function(NULL)
+ir_function_signature::ir_function_signature(const glsl_type *return_type,
+ builtin_available_predicate b)
+ : return_type(return_type), is_defined(false), is_intrinsic(false),
+ builtin_avail(b), _function(NULL)
{
this->ir_type = ir_type_function_signature;
- this->is_built_in = false;
+ this->origin = NULL;
+}
+
+
+bool
+ir_function_signature::is_builtin() const
+{
+ return builtin_avail != NULL;
+}
+
+
+bool
+ir_function_signature::is_builtin_available(const _mesa_glsl_parse_state *state) const
+{
+ /* We can't call the predicate without a state pointer, so just say that
+ * the signature is available. At compile time, we need the filtering,
+ * but also receive a valid state pointer. At link time, we're resolving
+ * imported built-in prototypes to their definitions, which will always
+ * be an exact match. So we can skip the filtering.
+ */
+ if (state == NULL)
+ return true;
+
+ assert(builtin_avail != NULL);
+ return builtin_avail(state);
+}
+
+
+static bool
+modes_match(unsigned a, unsigned b)
+{
+ if (a == b)
+ return true;
+
+ /* Accept "in" vs. "const in" */
+ if ((a == ir_var_const_in && b == ir_var_function_in) ||
+ (b == ir_var_const_in && a == ir_var_function_in))
+ return true;
+
+ return false;
}
ir_variable *a = (ir_variable *)iter_a.get();
ir_variable *b = (ir_variable *)iter_b.get();
- if (a->read_only != b->read_only ||
- a->mode != b->mode ||
+ if (a->data.read_only != b->data.read_only ||
+ !modes_match(a->mode, b->mode) ||
a->interpolation != b->interpolation ||
- a->centroid != b->centroid) {
+ a->data.centroid != b->data.centroid ||
+ a->data.sample != b->data.sample) {
/* parameter a's qualifiers don't match */
return a->name;
* parameter information comes from the function prototype, it may either
* specify incorrect parameter names or not have names at all.
*/
- foreach_iter(exec_list_iterator, iter, parameters) {
- assert(((ir_instruction *) iter.get())->as_variable() != NULL);
-
- iter.remove();
- }
-
new_params->move_nodes_to(¶meters);
}
ir_function::ir_function(const char *name)
{
this->ir_type = ir_type_function;
- this->name = talloc_strdup(this, name);
+ this->name = ralloc_strdup(this, name);
}
-ir_call *
-ir_call::get_error_instruction(void *ctx)
+bool
+ir_function::has_user_signature()
{
- ir_call *call = new(ctx) ir_call;
-
- call->type = glsl_type::error_type;
- return call;
+ foreach_list(n, &this->signatures) {
+ ir_function_signature *const sig = (ir_function_signature *) n;
+ if (!sig->is_builtin())
+ return true;
+ }
+ return false;
}
-void
-ir_call::set_callee(ir_function_signature *sig)
+
+ir_rvalue *
+ir_rvalue::error_value(void *mem_ctx)
{
- assert((this->type == NULL) || (this->type == sig->return_type));
+ ir_rvalue *v = new(mem_ctx) ir_rvalue;
- this->callee = sig;
+ v->type = glsl_type::error_type;
+ return v;
}
+
void
visit_exec_list(exec_list *list, ir_visitor *visitor)
{
if (var != NULL && var->constant_value != NULL)
steal_memory(var->constant_value, ir);
+ if (var != NULL && var->constant_initializer != NULL)
+ steal_memory(var->constant_initializer, ir);
+
/* The components of aggregate constants are not visited by the normal
* visitor, so steal their values by hand.
*/
}
}
- talloc_steal(new_ctx, ir);
+ ralloc_steal(new_ctx, ir);
}
visit_tree((ir_instruction *) node, steal_memory, mem_ctx);
}
}
+
+
+static ir_rvalue *
+try_min_one(ir_rvalue *ir)
+{
+ ir_expression *expr = ir->as_expression();
+
+ if (!expr || expr->operation != ir_binop_min)
+ return NULL;
+
+ if (expr->operands[0]->is_one())
+ return expr->operands[1];
+
+ if (expr->operands[1]->is_one())
+ return expr->operands[0];
+
+ return NULL;
+}
+
+static ir_rvalue *
+try_max_zero(ir_rvalue *ir)
+{
+ ir_expression *expr = ir->as_expression();
+
+ if (!expr || expr->operation != ir_binop_max)
+ return NULL;
+
+ if (expr->operands[0]->is_zero())
+ return expr->operands[1];
+
+ if (expr->operands[1]->is_zero())
+ return expr->operands[0];
+
+ return NULL;
+}
+
+ir_rvalue *
+ir_rvalue::as_rvalue_to_saturate()
+{
+ ir_expression *expr = this->as_expression();
+
+ if (!expr)
+ return NULL;
+
+ ir_rvalue *max_zero = try_max_zero(expr);
+ if (max_zero) {
+ return try_min_one(max_zero);
+ } else {
+ ir_rvalue *min_one = try_min_one(expr);
+ if (min_one) {
+ return try_max_zero(min_one);
+ }
+ }
+
+ return NULL;
+}
+
+
+unsigned
+vertices_per_prim(GLenum prim)
+{
+ switch (prim) {
+ case GL_POINTS:
+ return 1;
+ case GL_LINES:
+ return 2;
+ case GL_TRIANGLES:
+ return 3;
+ case GL_LINES_ADJACENCY:
+ return 4;
+ case GL_TRIANGLES_ADJACENCY:
+ return 6;
+ default:
+ assert(!"Bad primitive");
+ return 3;
+ }
+}
+
+/**
+ * Generate a string describing the mode of a variable
+ */
+const char *
+mode_string(const ir_variable *var)
+{
+ switch (var->mode) {
+ case ir_var_auto:
+ return (var->data.read_only) ? "global constant" : "global variable";
+
+ case ir_var_uniform:
+ return "uniform";
+
+ case ir_var_shader_in:
+ return "shader input";
+
+ case ir_var_shader_out:
+ return "shader output";
+
+ case ir_var_function_in:
+ case ir_var_const_in:
+ return "function input";
+
+ case ir_var_function_out:
+ return "function output";
+
+ case ir_var_function_inout:
+ return "function inout";
+
+ case ir_var_system_value:
+ return "shader input";
+
+ case ir_var_temporary:
+ return "compiler temporary";
+
+ case ir_var_mode_count:
+ break;
+ }
+
+ assert(!"Should not get here.");
+ return "invalid variable";
+}
projects / mesa.git / blobdiff