xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon/kms: add 3DC compression support

Browse Source 
There are 2 formats:
ATI1N: 64 bits per 4x4 block, one-channel format
ATI2N: 128 bits per 4x4 block, two-channel format

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Marek Olšák
2009-12-19 00:23:00 +01:00
committed by Dave Airlie
parent 46c64d4bfa
commit 512889f450
2 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/radeon/r300.c
View File

@@ -887,6 +887,14 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
track->textures[i].cpp = 1;
track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
break;
case R300_TX_FORMAT_ATI2N:
if (p->rdev->family < CHIP_R420) {
DRM_ERROR("Invalid texture format %u\n",
(idx_value & 0x1F));
return -EINVAL;
}
/* The same rules apply as for DXT3/5. */
/* Pass through. */
case R300_TX_FORMAT_DXT3:
case R300_TX_FORMAT_DXT5:
track->textures[i].cpp = 1;
@@ -951,6 +959,16 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
track->textures[i].width_11 = tmp;
tmp = ((idx_value >> 16) & 1) << 11;
track->textures[i].height_11 = tmp;
/* ATI1N */
if (idx_value & (1 << 14)) {
/* The same rules apply as for DXT1. */
track->textures[i].compress_format =
R100_TRACK_COMP_DXT1;
}
} else if (idx_value & (1 << 14)) {
DRM_ERROR("Forbidden bit TXFORMAT_MSB\n");
return -EINVAL;
}
break;
case 0x4480: