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freedreno/fdl6: Add support for texture swizzles of A/L/I/LA/RGBx.

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To convert freedreno over, we need to support these formats where we remap
R or RG formats to GL compat ones, or RGBA to RGBx.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13635>
This commit is contained in:
Emma Anholt
2021-10-19 10:25:46 -07:00
committed by Marge Bot
parent 669caded51
commit 3050e20283
1 changed files with 26 additions and 0 deletions
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26
src/freedreno/fdl/fd6_view.c
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@@ -89,7 +89,33 @@ fdl6_texswiz(const struct fdl_view_args *args, bool has_z24uint_s8uint)
format_swiz[1] = PIPE_SWIZZLE_0;
}
break;
default:
/* Our I, L, A, and LA formats use R or RG HW formats. */
if (util_format_is_alpha(args->format)) {
format_swiz[0] = PIPE_SWIZZLE_0;
format_swiz[1] = PIPE_SWIZZLE_0;
format_swiz[2] = PIPE_SWIZZLE_0;
format_swiz[3] = PIPE_SWIZZLE_X;
} else if (util_format_is_luminance(args->format)) {
format_swiz[0] = PIPE_SWIZZLE_X;
format_swiz[1] = PIPE_SWIZZLE_X;
format_swiz[2] = PIPE_SWIZZLE_X;
format_swiz[3] = PIPE_SWIZZLE_1;
} else if (util_format_is_intensity(args->format)) {
format_swiz[0] = PIPE_SWIZZLE_X;
format_swiz[1] = PIPE_SWIZZLE_X;
format_swiz[2] = PIPE_SWIZZLE_X;
format_swiz[3] = PIPE_SWIZZLE_X;
} else if (util_format_is_luminance_alpha(args->format)) {
format_swiz[0] = PIPE_SWIZZLE_X;
format_swiz[1] = PIPE_SWIZZLE_X;
format_swiz[2] = PIPE_SWIZZLE_X;
format_swiz[3] = PIPE_SWIZZLE_Y;
} else if (!util_format_has_alpha(args->format)) {
/* for rgbx, force A to 1. Harmless for R/RG, where we already get 1. */
format_swiz[3] = PIPE_SWIZZLE_1;
}
break;
}