geemili
/
drm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

xf86drm: Add support for decoding Nvidia format modifiers 

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
main
Marius Vlad 2021-02-01 13:45:58 +02:00 committed by Daniel Stone
parent a04b674887
commit 99a0522aef
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
xf86drm.c
View File

@ -61,6 +61,7 @@
#include <sys/sysctl.h> #include <sys/sysctl.h>
#endif #endif
#include <math.h> #include <math.h>
#include <inttypes.h>
#if defined(__FreeBSD__) #if defined(__FreeBSD__)
#include <sys/param.h> #include <sys/param.h>
@ -165,8 +166,12 @@ struct drmFormatVendorModifierInfo {
static char * static char *
drmGetFormatModifierNameFromArm(uint64_t modifier); drmGetFormatModifierNameFromArm(uint64_t modifier);
static char *
drmGetFormatModifierNameFromNvidia(uint64_t modifier);
static const struct drmVendorInfo modifier_format_vendor_table[] = { static const struct drmVendorInfo modifier_format_vendor_table[] = {
{ DRM_FORMAT_MOD_VENDOR_ARM, drmGetFormatModifierNameFromArm }, { DRM_FORMAT_MOD_VENDOR_ARM, drmGetFormatModifierNameFromArm },
{ DRM_FORMAT_MOD_VENDOR_NVIDIA, drmGetFormatModifierNameFromNvidia },
}; };
#ifndef AFBC_FORMAT_MOD_MODE_VALUE_MASK #ifndef AFBC_FORMAT_MOD_MODE_VALUE_MASK
@ -250,6 +255,31 @@ drmGetFormatModifierNameFromArm(uint64_t modifier)
return modifier_name; return modifier_name;
} }
static char *
drmGetFormatModifierNameFromNvidia(uint64_t modifier)
{
uint64_t height, kind, gen, sector, compression;
height = modifier & 0xf;
kind = (modifier >> 12) & 0xff;
gen = (modifier >> 20) & 0x3;
sector = (modifier >> 22) & 0x1;
compression = (modifier >> 23) & 0x7;
/* just in case there could other simpler modifiers, not yet added, avoid
* testing against TEGRA_TILE */
if ((modifier & 0x10) == 0x10) {
char *mod_nvidia;
asprintf(&mod_nvidia, "BLOCK_LINEAR_2D,HEIGHT=%"PRIu64",KIND=%"PRIu64","
"GEN=%"PRIu64",SECTOR=%"PRIu64",COMPRESSION=%"PRIu64"", height,
kind, gen, sector, compression);
return mod_nvidia;
}
return NULL;
}
static unsigned log2_int(unsigned x) static unsigned log2_int(unsigned x)
{ {
unsigned l; unsigned l;