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xf86drm: Add support for decoding AMLOGIC format modifiers

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Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This commit is contained in:
Marius Vlad 2021-02-24 00:51:45 +02:00 • committed by Daniel Stone
parent 9ae8f17d56
commit 65d8939808
1 changed files with 35 additions and 0 deletions
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35
xf86drm.c
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@ -172,10 +172,14 @@ drmGetFormatModifierNameFromNvidia(uint64_t modifier);
static char *
drmGetFormatModifierNameFromAmd(uint64_t modifier);
static char *
drmGetFormatModifierNameFromAmlogic(uint64_t modifier);
static const struct drmVendorInfo modifier_format_vendor_table[] = {
{ DRM_FORMAT_MOD_VENDOR_ARM, drmGetFormatModifierNameFromArm },
{ DRM_FORMAT_MOD_VENDOR_NVIDIA, drmGetFormatModifierNameFromNvidia },
{ DRM_FORMAT_MOD_VENDOR_AMD, drmGetFormatModifierNameFromAmd },
{ DRM_FORMAT_MOD_VENDOR_AMLOGIC, drmGetFormatModifierNameFromAmlogic },
};
#ifndef AFBC_FORMAT_MOD_MODE_VALUE_MASK
@ -447,6 +451,37 @@ drmGetFormatModifierNameFromAmd(uint64_t modifier)
return mod_amd;
}
static char *
drmGetFormatModifierNameFromAmlogic(uint64_t modifier)
{
uint64_t layout = modifier & 0xff;
uint64_t options = (modifier >> 8) & 0xff;
char *mod_amlogic = NULL;
const char *layout_str;
const char *opts_str;
switch (layout) {
case AMLOGIC_FBC_LAYOUT_BASIC:
layout_str = "BASIC";
break;
case AMLOGIC_FBC_LAYOUT_SCATTER:
layout_str = "SCATTER";
break;
default:
layout_str = "INVALID_LAYOUT";
break;
}
if (options & AMLOGIC_FBC_OPTION_MEM_SAVING)
opts_str = "MEM_SAVING";
else
opts_str = "0";
asprintf(&mod_amlogic, "FBC,LAYOUT=%s,OPTIONS=%s", layout_str, opts_str);
return mod_amlogic;
}
static unsigned log2_int(unsigned x)
{
unsigned l;