#include <stdio.h>
#include "main/compiler.h"
+#include "main/macros.h"
#include "main/mtypes.h"
#include "main/shaderapi.h"
#include "main/shaderobj.h"
this->file = file;
this->index = 0;
this->writemask = writemask;
- this->cond_mask = COND_TR;
this->reladdr = NULL;
}
this->file = PROGRAM_UNDEFINED;
this->index = 0;
this->writemask = 0;
- this->cond_mask = COND_TR;
this->reladdr = NULL;
}
gl_register_file file; /**< PROGRAM_* from Mesa */
int index; /**< temporary index, VERT_ATTRIB_*, VARYING_SLOT_*, etc. */
int writemask; /**< Bitfield of WRITEMASK_[XYZW] */
- GLuint cond_mask:4;
/** Register index should be offset by the integer in this reg. */
src_reg *reladdr;
};
this->file = reg.file;
this->index = reg.index;
this->writemask = WRITEMASK_XYZW;
- this->cond_mask = COND_TR;
this->reladdr = reg.reladdr;
}
src_reg src[3];
/** Pointer to the ir source this tree came from for debugging */
ir_instruction *ir;
- GLboolean cond_update;
bool saturate;
int sampler; /**< sampler index */
int tex_target; /**< One of TEXTURE_*_INDEX */
void emit_swz(ir_expression *ir);
+ void emit_equality_comparison(ir_expression *ir, enum prog_opcode op,
+ dst_reg dst,
+ const src_reg &src0, const src_reg &src1);
+
+ inline void emit_sne(ir_expression *ir, dst_reg dst,
+ const src_reg &src0, const src_reg &src1)
+ {
+ emit_equality_comparison(ir, OPCODE_SLT, dst, src0, src1);
+ }
+
+ inline void emit_seq(ir_expression *ir, dst_reg dst,
+ const src_reg &src0, const src_reg &src1)
+ {
+ emit_equality_comparison(ir, OPCODE_SGE, dst, src0, src1);
+ }
+
bool process_move_condition(ir_rvalue *ir);
void copy_propagate(void);
this->result = result_src;
}
+void
+ir_to_mesa_visitor::emit_equality_comparison(ir_expression *ir,
+ enum prog_opcode op,
+ dst_reg dst,
+ const src_reg &src0,
+ const src_reg &src1)
+{
+ src_reg difference;
+ src_reg abs_difference = get_temp(glsl_type::vec4_type);
+ const src_reg zero = src_reg_for_float(0.0);
+
+ /* x == y is equivalent to -abs(x-y) >= 0. Since all of the code that
+ * consumes the generated IR is pretty dumb, take special care when one
+ * of the operands is zero.
+ *
+ * Similarly, x != y is equivalent to -abs(x-y) < 0.
+ */
+ if (src0.file == zero.file &&
+ src0.index == zero.index &&
+ src0.swizzle == zero.swizzle) {
+ difference = src1;
+ } else if (src1.file == zero.file &&
+ src1.index == zero.index &&
+ src1.swizzle == zero.swizzle) {
+ difference = src0;
+ } else {
+ difference = get_temp(glsl_type::vec4_type);
+
+ src_reg tmp_src = src0;
+ tmp_src.negate = ~tmp_src.negate;
+
+ emit(ir, OPCODE_ADD, dst_reg(difference), tmp_src, src1);
+ }
+
+ emit(ir, OPCODE_ABS, dst_reg(abs_difference), difference);
+
+ abs_difference.negate = ~abs_difference.negate;
+ emit(ir, op, dst, abs_difference, zero);
+}
+
void
ir_to_mesa_visitor::visit(ir_expression *ir)
{
emit(ir, OPCODE_SLT, result_dst, op[0], op[1]);
break;
case ir_binop_greater:
- emit(ir, OPCODE_SGT, result_dst, op[0], op[1]);
+ /* Negating the operands (as opposed to switching the order of the
+ * operands) produces the correct result when both are +/-Inf.
+ */
+ op[0].negate = ~op[0].negate;
+ op[1].negate = ~op[1].negate;
+ emit(ir, OPCODE_SLT, result_dst, op[0], op[1]);
break;
case ir_binop_lequal:
- emit(ir, OPCODE_SLE, result_dst, op[0], op[1]);
+ /* Negating the operands (as opposed to switching the order of the
+ * operands) produces the correct result when both are +/-Inf.
+ */
+ op[0].negate = ~op[0].negate;
+ op[1].negate = ~op[1].negate;
+ emit(ir, OPCODE_SGE, result_dst, op[0], op[1]);
break;
case ir_binop_gequal:
emit(ir, OPCODE_SGE, result_dst, op[0], op[1]);
break;
case ir_binop_equal:
- emit(ir, OPCODE_SEQ, result_dst, op[0], op[1]);
+ emit_seq(ir, result_dst, op[0], op[1]);
break;
case ir_binop_nequal:
- emit(ir, OPCODE_SNE, result_dst, op[0], op[1]);
+ emit_sne(ir, result_dst, op[0], op[1]);
break;
case ir_binop_all_equal:
/* "==" operator producing a scalar boolean. */
if (ir->operands[0]->type->is_vector() ||
ir->operands[1]->type->is_vector()) {
src_reg temp = get_temp(glsl_type::vec4_type);
- emit(ir, OPCODE_SNE, dst_reg(temp), op[0], op[1]);
+ emit_sne(ir, dst_reg(temp), op[0], op[1]);
/* After the dot-product, the value will be an integer on the
* range [0,4]. Zero becomes 1.0, and positive values become zero.
sge_src.negate = ~sge_src.negate;
emit(ir, OPCODE_SGE, result_dst, sge_src, src_reg_for_float(0.0));
} else {
- emit(ir, OPCODE_SEQ, result_dst, op[0], op[1]);
+ emit_seq(ir, result_dst, op[0], op[1]);
}
break;
case ir_binop_any_nequal:
ir->operands[1]->as_constant()->is_zero()) {
temp = op[0];
} else {
- emit(ir, OPCODE_SNE, dst_reg(temp), op[0], op[1]);
+ emit_sne(ir, dst_reg(temp), op[0], op[1]);
}
/* After the dot-product, the value will be an integer on the
emit(ir, OPCODE_SLT, result_dst, slt_src, src_reg_for_float(0.0));
}
} else {
- emit(ir, OPCODE_SNE, result_dst, op[0], op[1]);
+ emit_sne(ir, result_dst, op[0], op[1]);
}
break;
case ir_binop_logic_xor:
- emit(ir, OPCODE_SNE, result_dst, op[0], op[1]);
+ emit_sne(ir, result_dst, op[0], op[1]);
break;
case ir_binop_logic_or: {
- /* After the addition, the value will be an integer on the
- * range [0,2]. Zero stays zero, and positive values become 1.0.
- */
- ir_to_mesa_instruction *add =
- emit(ir, OPCODE_ADD, result_dst, op[0], op[1]);
if (this->prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
- /* The clamping to [0,1] can be done for free in the fragment
- * shader with a saturate.
- */
+ /* After the addition, the value will be an integer on the
+ * range [0,2]. Zero stays zero, and positive values become 1.0.
+ */
+ ir_to_mesa_instruction *add =
+ emit(ir, OPCODE_ADD, result_dst, op[0], op[1]);
add->saturate = true;
} else {
- /* Negating the result of the addition gives values on the range
- * [-2, 0]. Zero stays zero, and negative values become 1.0. This
- * is achieved using SLT.
- */
- src_reg slt_src = result_src;
- slt_src.negate = ~slt_src.negate;
- emit(ir, OPCODE_SLT, result_dst, slt_src, src_reg_for_float(0.0));
+ /* The Boolean arguments are stored as float 0.0 and 1.0. If either
+ * value is 1.0, the result of the logcal-or should be 1.0. If both
+ * values are 0.0, the result should be 0.0. This is exactly what
+ * MAX does.
+ */
+ emit(ir, OPCODE_MAX, result_dst, op[0], op[1]);
}
break;
}
break;
case ir_unop_f2b:
case ir_unop_i2b:
- emit(ir, OPCODE_SNE, result_dst,
- op[0], src_reg_for_float(0.0));
+ emit_sne(ir, result_dst, op[0], src_reg_for_float(0.0));
break;
case ir_unop_bitcast_f2i: // Ignore these 4, they can't happen here anyway
case ir_unop_bitcast_f2u:
case ir_unop_dFdy_fine:
case ir_unop_subroutine_to_int:
case ir_unop_get_buffer_size:
+ case ir_unop_vote_any:
+ case ir_unop_vote_all:
+ case ir_unop_vote_eq:
assert(!"not supported");
break;
ir->coordinate->accept(this);
/* Put our coords in a temp. We'll need to modify them for shadow,
- * projection, or LOD, so the only case we'd use it as is is if
+ * projection, or LOD, so the only case we'd use it as-is is if
* we're doing plain old texturing. Mesa IR optimization should
* handle cleaning up our mess in that case.
*/
void
ir_to_mesa_visitor::visit(ir_discard *ir)
{
- if (ir->condition) {
- ir->condition->accept(this);
- this->result.negate = ~this->result.negate;
- emit(ir, OPCODE_KIL, undef_dst, this->result);
- } else {
- emit(ir, OPCODE_KIL_NV);
- }
+ if (!ir->condition)
+ ir->condition = new(mem_ctx) ir_constant(true);
+
+ ir->condition->accept(this);
+ this->result.negate = ~this->result.negate;
+ emit(ir, OPCODE_KIL, undef_dst, this->result);
}
void
ir_to_mesa_visitor::visit(ir_if *ir)
{
- ir_to_mesa_instruction *cond_inst, *if_inst;
- ir_to_mesa_instruction *prev_inst;
-
- prev_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();
+ ir_to_mesa_instruction *if_inst;
ir->condition->accept(this);
assert(this->result.file != PROGRAM_UNDEFINED);
- if (this->options->EmitCondCodes) {
- cond_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();
-
- /* See if we actually generated any instruction for generating
- * the condition. If not, then cook up a move to a temp so we
- * have something to set cond_update on.
- */
- if (cond_inst == prev_inst) {
- src_reg temp = get_temp(glsl_type::bool_type);
- cond_inst = emit(ir->condition, OPCODE_MOV, dst_reg(temp), result);
- }
- cond_inst->cond_update = GL_TRUE;
-
- if_inst = emit(ir->condition, OPCODE_IF);
- if_inst->dst.cond_mask = COND_NE;
- } else {
- if_inst = emit(ir->condition, OPCODE_IF, undef_dst, this->result);
- }
+ if_inst = emit(ir->condition, OPCODE_IF, undef_dst, this->result);
this->instructions.push_tail(if_inst);
mesa_reg.Swizzle = reg.swizzle;
mesa_reg.RelAddr = reg.reladdr != NULL;
mesa_reg.Negate = reg.negate;
- mesa_reg.Abs = 0;
- mesa_reg.HasIndex2 = GL_FALSE;
- mesa_reg.RelAddr2 = 0;
- mesa_reg.Index2 = 0;
return mesa_reg;
}
if (type->is_vector() || type->is_scalar()) {
size = type->vector_elements;
- if (type->is_double())
+ if (type->is_64bit())
size *= 2;
} else {
size = type_size(type) * 4;
file = PROGRAM_UNIFORM;
}
- int index = _mesa_lookup_parameter_index(params, -1, name);
+ int index = _mesa_lookup_parameter_index(params, name);
if (index < 0) {
index = _mesa_add_parameter(params, file, name, size, type->gl_type,
NULL, NULL);
void
_mesa_generate_parameters_list_for_uniforms(struct gl_shader_program
*shader_program,
- struct gl_shader *sh,
+ struct gl_linked_shader *sh,
struct gl_program_parameter_list
*params)
{
static struct gl_program *
get_mesa_program(struct gl_context *ctx,
struct gl_shader_program *shader_program,
- struct gl_shader *shader)
+ struct gl_linked_shader *shader)
{
ir_to_mesa_visitor v;
struct prog_instruction *mesa_instructions, *mesa_inst;
i = 0;
foreach_in_list(const ir_to_mesa_instruction, inst, &v.instructions) {
mesa_inst->Opcode = inst->op;
- mesa_inst->CondUpdate = inst->cond_update;
if (inst->saturate)
mesa_inst->Saturate = GL_TRUE;
mesa_inst->DstReg.File = inst->dst.file;
mesa_inst->DstReg.Index = inst->dst.index;
- mesa_inst->DstReg.CondMask = inst->dst.cond_mask;
mesa_inst->DstReg.WriteMask = inst->dst.writemask;
mesa_inst->DstReg.RelAddr = inst->dst.reladdr != NULL;
mesa_inst->SrcReg[0] = mesa_src_reg_from_ir_src_reg(inst->src[0]);
if (linked_prog) {
_mesa_copy_linked_program_data((gl_shader_stage) i, prog, linked_prog);
- _mesa_reference_program(ctx, &prog->_LinkedShaders[i]->Program,
- linked_prog);
if (!ctx->Driver.ProgramStringNotify(ctx,
_mesa_shader_stage_to_program(i),
linked_prog)) {
_mesa_reference_program(ctx, &linked_prog, NULL);
}
+ build_program_resource_list(ctx, prog);
return prog->LinkStatus;
}
if (prog->LinkStatus) {
if (!ctx->Driver.LinkShader(ctx, prog)) {
prog->LinkStatus = GL_FALSE;
- } else {
- build_program_resource_list(prog);
}
}
projects / mesa.git / blobdiff