/* * Copyright (c) 2015 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ /** * \file lower_buffer_access.h * * Helper for IR lowering pass to replace dereferences of buffer object based * shader variables with intrinsic function calls. * * This helper is used by lowering passes for UBOs, SSBOs and compute shader * shared variables. */ #ifndef LOWER_BUFFER_ACCESS_H #define LOWER_BUFFER_ACCESS_H #include "ir.h" #include "ir_rvalue_visitor.h" namespace lower_buffer_access { class lower_buffer_access : public ir_rvalue_enter_visitor { public: virtual void insert_buffer_access(void *mem_ctx, ir_dereference *deref, const glsl_type *type, ir_rvalue *offset, unsigned mask, int channel) = 0; void emit_access(void *mem_ctx, bool is_write, ir_dereference *deref, ir_variable *base_offset, unsigned int deref_offset, bool row_major, int matrix_columns, unsigned int packing, unsigned int write_mask); bool is_dereferenced_thing_row_major(const ir_rvalue *deref); void setup_buffer_access(void *mem_ctx, ir_rvalue *deref, ir_rvalue **offset, unsigned *const_offset, bool *row_major, int *matrix_columns, const glsl_struct_field **struct_field, enum glsl_interface_packing packing); }; } /* namespace lower_buffer_access */ #endif /* LOWER_BUFFER_ACCESS_H */