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66a680a043
Laying out the tilebuffer is nontrivial and a task shared between GL and VK, so add unit-tested helpers. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19871>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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* Copyright 2022 Alyssa Rosenzweig
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* SPDX-License-Identifier: MIT
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*/
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#ifndef __AGX_TILEBUFFER_H
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#define __AGX_TILEBUFFER_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "util/format/u_formats.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Forward declarations to keep the header lean */
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struct nir_shader;
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struct agx_usc_builder;
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struct agx_tile_size {
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uint8_t width;
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uint8_t height;
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};
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struct agx_tilebuffer_layout {
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/* Logical format of each render target. Use agx_tilebuffer_physical_format
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* to get the physical format.
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*/
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enum pipe_format logical_format[8];
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/* Offset into the sample of each render target */
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uint8_t offset_B[8];
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/* Total bytes per sample, rounded up as needed */
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uint8_t sample_size_B;
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/* Number of samples per pixel */
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uint8_t nr_samples;
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/* Selected tile size */
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struct agx_tile_size tile_size;
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};
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struct agx_tilebuffer_layout
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agx_build_tilebuffer_layout(enum pipe_format *formats, uint8_t nr_cbufs, uint8_t nr_samples);
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bool
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agx_nir_lower_tilebuffer(struct nir_shader *shader, struct agx_tilebuffer_layout *tib);
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void
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agx_usc_tilebuffer(struct agx_usc_builder *b, struct agx_tilebuffer_layout *tib);
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uint32_t
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agx_tilebuffer_total_size(struct agx_tilebuffer_layout *tib);
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enum pipe_format
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agx_tilebuffer_physical_format(struct agx_tilebuffer_layout *tib, unsigned rt);
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#ifdef __cplusplus
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} /* extern C */
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#endif
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#endif
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