From 6848e27e1462e98dd91826a06f96c203c9eeebd0 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Tue, 7 Dec 2010 14:50:34 -0800 Subject: i965: Correctly emit constants for aggregate types (array, matrix, struct) Previously the code only handled scalars and vectors. This new code is modeled somewhat after similar code in ir_to_mesa. Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_fs.cpp | 80 +++++++++++++++++++++++++++--------- 1 file changed, 61 insertions(+), 19 deletions(-) (limited to 'src/mesa') diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index c775a0488a..a956453dbf 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1427,28 +1427,70 @@ fs_visitor::visit(ir_discard *ir) void fs_visitor::visit(ir_constant *ir) { - fs_reg reg(this, ir->type); - this->result = reg; + /* Set this->result to reg at the bottom of the function because some code + * paths will cause this visitor to be applied to other fields. This will + * cause the value stored in this->result to be modified. + * + * Make reg constant so that it doesn't get accidentally modified along the + * way. Yes, I actually had this problem. :( + */ + const fs_reg reg(this, ir->type); + fs_reg dst_reg = reg; - for (unsigned int i = 0; i < ir->type->vector_elements; i++) { - switch (ir->type->base_type) { - case GLSL_TYPE_FLOAT: - emit(fs_inst(BRW_OPCODE_MOV, reg, fs_reg(ir->value.f[i]))); - break; - case GLSL_TYPE_UINT: - emit(fs_inst(BRW_OPCODE_MOV, reg, fs_reg(ir->value.u[i]))); - break; - case GLSL_TYPE_INT: - emit(fs_inst(BRW_OPCODE_MOV, reg, fs_reg(ir->value.i[i]))); - break; - case GLSL_TYPE_BOOL: - emit(fs_inst(BRW_OPCODE_MOV, reg, fs_reg((int)ir->value.b[i]))); - break; - default: - assert(!"Non-float/uint/int/bool constant"); + if (ir->type->is_array()) { + const unsigned size = type_size(ir->type->fields.array); + + for (unsigned i = 0; i < ir->type->length; i++) { + ir->array_elements[i]->accept(this); + fs_reg src_reg = this->result; + + dst_reg.type = src_reg.type; + for (unsigned j = 0; j < size; j++) { + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, src_reg)); + src_reg.reg_offset++; + dst_reg.reg_offset++; + } + } + } else if (ir->type->is_record()) { + foreach_list(node, &ir->components) { + ir_instruction *const field = (ir_instruction *) node; + const unsigned size = type_size(field->type); + + field->accept(this); + fs_reg src_reg = this->result; + + dst_reg.type = src_reg.type; + for (unsigned j = 0; j < size; j++) { + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, src_reg)); + src_reg.reg_offset++; + dst_reg.reg_offset++; + } + } + } else { + const unsigned size = type_size(ir->type); + + for (unsigned i = 0; i < size; i++) { + switch (ir->type->base_type) { + case GLSL_TYPE_FLOAT: + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, fs_reg(ir->value.f[i]))); + break; + case GLSL_TYPE_UINT: + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, fs_reg(ir->value.u[i]))); + break; + case GLSL_TYPE_INT: + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, fs_reg(ir->value.i[i]))); + break; + case GLSL_TYPE_BOOL: + emit(fs_inst(BRW_OPCODE_MOV, dst_reg, fs_reg((int)ir->value.b[i]))); + break; + default: + assert(!"Non-float/uint/int/bool constant"); + } + dst_reg.reg_offset++; } - reg.reg_offset++; } + + this->result = reg; } void -- cgit v1.2.3