1 /* 2 * Copyright (C) 2020 Collabora, Ltd. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 * 23 * Authors (Collabora): 24 * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> 25 */ 26 27 #ifndef __PAN_LOWER_FRAMEBUFFER_H 28 #define __PAN_LOWER_FRAMEBUFFER_H 29 30 #include "compiler/nir/nir.h" 31 #include "util/format/u_format.h" 32 33 /* NATIVE formats can use a typed load/store. PACK formats cannot but can use a 34 * typed pack/unpack instruction. SOFTWARE formats are lowered */ 35 36 enum pan_format_class { 37 PAN_FORMAT_NATIVE, 38 PAN_FORMAT_PACK, 39 PAN_FORMAT_SOFTWARE 40 }; 41 42 nir_alu_type pan_unpacked_type_for_format(const struct util_format_description *desc); 43 enum pan_format_class pan_format_class_load(const struct util_format_description *desc, unsigned quirks); 44 enum pan_format_class pan_format_class_store(const struct util_format_description *desc, unsigned quirks); 45 46 bool pan_lower_framebuffer(nir_shader *shader, const enum pipe_format *rt_fmts, 47 bool is_blend, unsigned quirks); 48 49 #endif 50