2 * Copyright © 2018 Intel Corporation
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5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
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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:
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
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,
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24 #ifndef NIR_XFB_INFO_H
25 #define NIR_XFB_INFO_H
29 #define NIR_MAX_XFB_BUFFERS 4
30 #define NIR_MAX_XFB_STREAMS 4
34 uint16_t varying_count
;
35 } nir_xfb_buffer_info
;
41 uint8_t component_mask
;
42 uint8_t component_offset
;
43 } nir_xfb_output_info
;
46 const struct glsl_type
*type
;
49 } nir_xfb_varying_info
;
51 typedef struct nir_xfb_info
{
52 uint8_t buffers_written
;
53 uint8_t streams_written
;
55 nir_xfb_buffer_info buffers
[NIR_MAX_XFB_BUFFERS
];
56 uint8_t buffer_to_stream
[NIR_MAX_XFB_STREAMS
];
58 uint16_t varying_count
;
59 nir_xfb_varying_info
*varyings
;
61 uint16_t output_count
;
62 nir_xfb_output_info
*outputs
;
65 /* This method doesn't take into account varyings, as it is used to compute
66 * how much size is needed to copy only the outputs.
69 nir_xfb_info_size(uint16_t output_count
)
71 return sizeof(nir_xfb_info
) + sizeof(nir_xfb_output_info
) * output_count
;
75 nir_gather_xfb_info(const nir_shader
*shader
, void *mem_ctx
);
77 #endif /* NIR_XFB_INFO_H */