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nir/lower_tex: clarify nir_lower_tex_options indexing

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This doesn't matter too much on OpenGL as texture id and sampler id
are the same, but become relevant if using the lowering for Vulkan.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7545>
This commit is contained in:
Alejandro Piñeiro 2020-10-28 12:59:24 +01:00 • committed by Marge Bot
parent f7b122728d
commit 5169dfd1fd
1 changed files with 12 additions and 1 deletions
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13
src/compiler/nir/nir.h
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@ -4739,10 +4739,16 @@ typedef struct nir_lower_tex_options {
/* A swizzle for each texture. Values 0-3 represent x, y, z, or w swizzles /* A swizzle for each texture. Values 0-3 represent x, y, z, or w swizzles
* while 4 and 5 represent 0 and 1 respectively. * while 4 and 5 represent 0 and 1 respectively.
*
* Indexed by texture-id.
*/ */
uint8_t swizzles[32][4]; uint8_t swizzles[32][4];
/* Can be used to scale sampled values in range required by the format. */ /* Can be used to scale sampled values in range required by the
* format.
*
* Indexed by texture-id.
*/
float scale_factors[32]; float scale_factors[32];
/** /**
@ -4828,6 +4834,11 @@ typedef struct nir_lower_tex_options {
*/ */
bool lower_tg4_offsets; bool lower_tg4_offsets;
/**
* To lower packed sampler return formats.
*
* Indexed by sampler-id.
*/
enum nir_lower_tex_packing lower_tex_packing[32]; enum nir_lower_tex_packing lower_tex_packing[32];
} nir_lower_tex_options; } nir_lower_tex_options;