diff options
| author | Marek Olšák <maraeo@gmail.com> | 2009-12-19 00:23:00 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-23 11:14:04 +1000 |
| commit | 512889f450c1851d9e3628f1894b9b64b0701eac (patch) | |
| tree | b6a3ded7f8b5d6a0874c606a030fa3c18c7efa0b /drivers/gpu/drm/radeon/r300.c | |
| parent | 46c64d4bfa01cda7d58c514164f8b127ab6741b7 (diff) | |
drm/radeon/kms: add 3DC compression support
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/r300.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r300.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 6a5d1177afa..3f2cc9e2e8d 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -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: |