From eb63640c1d38a200a7b1540405051d3ff79d0d8a Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Mon, 18 Jan 2016 12:16:48 +0200 Subject: glsl: move to compiler/ Signed-off-by: Emil Velikov Acked-by: Matt Turner Acked-by: Jose Fonseca --- src/compiler/glsl/lower_buffer_access.h | 65 +++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 src/compiler/glsl/lower_buffer_access.h (limited to 'src/compiler/glsl/lower_buffer_access.h') diff --git a/src/compiler/glsl/lower_buffer_access.h b/src/compiler/glsl/lower_buffer_access.h new file mode 100644 index 00000000000..cc4614e9792 --- /dev/null +++ b/src/compiler/glsl/lower_buffer_access.h @@ -0,0 +1,65 @@ +/* + * 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. + */ + +#pragma once +#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_variable *var, ir_rvalue *deref, + ir_rvalue **offset, unsigned *const_offset, + bool *row_major, int *matrix_columns, + unsigned packing); +}; + +} /* namespace lower_buffer_access */ + +#endif /* LOWER_BUFFER_ACCESS_H */ -- cgit v1.2.3