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authorBoyuan Yang <byang@debian.org>2022-07-14 15:56:59 -0400
committerBoyuan Yang <byang@debian.org>2022-07-14 15:56:59 -0400
commit1a2e17bd28a068714658551c8c355171ce15dfa0 (patch)
treedb9e739007016850ee355365874a20b07034ef2c /src/dsp/convolve.inc
parenta08da9600832caf817125edee2c3206fe24cd5cb (diff)
parentd4dbf19f6b0181ee78034bfe4caf189d1c016998 (diff)
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Update upstream source from tag 'upstream/0.18.0'
Update to upstream version '0.18.0' with Debian dir a69c1f7f3e7109393a3f9f5f1a2e7a5c3d3eda9f
Diffstat (limited to 'src/dsp/convolve.inc')
-rw-r--r--src/dsp/convolve.inc31
1 files changed, 1 insertions, 30 deletions
diff --git a/src/dsp/convolve.inc b/src/dsp/convolve.inc
index e0f755e..2e0b270 100644
--- a/src/dsp/convolve.inc
+++ b/src/dsp/convolve.inc
@@ -12,39 +12,10 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-// Constants and utility functions used for convolve implementations.
+// Constants used for convolve implementations.
// This will be included inside an anonymous namespace on files where these are
// necessary.
-int GetNumTapsInFilter(const int filter_index) {
- if (filter_index < 2) {
- // Despite the names these only use 6 taps.
- // kInterpolationFilterEightTap
- // kInterpolationFilterEightTapSmooth
- return 6;
- }
-
- if (filter_index == 2) {
- // kInterpolationFilterEightTapSharp
- return 8;
- }
-
- if (filter_index == 3) {
- // kInterpolationFilterBilinear
- return 2;
- }
-
- assert(filter_index > 3);
- // For small sizes (width/height <= 4) the large filters are replaced with 4
- // tap options.
- // If the original filters were |kInterpolationFilterEightTap| or
- // |kInterpolationFilterEightTapSharp| then it becomes
- // |kInterpolationFilterSwitchable|.
- // If it was |kInterpolationFilterEightTapSmooth| then it becomes an unnamed 4
- // tap filter.
- return 4;
-}
-
constexpr int kIntermediateAllocWidth = kMaxSuperBlockSizeInPixels;
constexpr int kIntermediateStride = 8;
constexpr int kHorizontalOffset = 3;