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e5fcc193f7
Structure ourselves as a NIR pass replacing loads/stores with unpacked/packed versions as necessary. Not actually functional yet. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5265>
51 lines
2 KiB
C
51 lines
2 KiB
C
/*
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* Copyright (C) 2020 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors (Collabora):
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* Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
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*/
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#ifndef __PAN_LOWER_FRAMEBUFFER_H
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#define __PAN_LOWER_FRAMEBUFFER_H
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#include "compiler/nir/nir.h"
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#include "util/format/u_format.h"
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/* NATIVE formats can use a typed load/store. PACK formats cannot but can use a
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* typed pack/unpack instruction. SOFTWARE formats are lowered */
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enum pan_format_class {
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PAN_FORMAT_NATIVE,
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PAN_FORMAT_PACK,
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PAN_FORMAT_SOFTWARE
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};
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nir_alu_type pan_unpacked_type_for_format(const struct util_format_description *desc);
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enum pan_format_class pan_format_class_load(const struct util_format_description *desc, unsigned quirks);
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enum pan_format_class pan_format_class_store(const struct util_format_description *desc, unsigned quirks);
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void
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pan_lower_framebuffer(nir_shader *shader,
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const struct util_format_description *desc,
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unsigned quirks);
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#endif
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