Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 345 insertions, 0 deletions

diff --git a/third_party/aom/aom_dsp/blend_a64_mask.c b/third_party/aom/aom_dsp/blend_a64_mask.c
new file mode 100644
index 0000000000..992cc5c0c4
--- /dev/null
+++ b/third_party/aom/aom_dsp/blend_a64_mask.c
@@ -0,0 +1,345 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+
+#include "aom/aom_integer.h"
+#include "aom_ports/mem.h"
+#include "aom_dsp/blend.h"
+#include "aom_dsp/aom_dsp_common.h"
+
+#include "config/aom_dsp_rtcd.h"
+
+// Blending with alpha mask. Mask values come from the range [0, 64],
+// as described for AOM_BLEND_A64 in aom_dsp/blend.h. src0 or src1 can
+// be the same as dst, or dst can be different from both sources.
+
+// NOTE(david.barker): The input and output of aom_blend_a64_d32_mask_c() are
+// in a higher intermediate precision, and will later be rounded down to pixel
+// precision.
+// Thus, in order to avoid double-rounding, we want to use normal right shifts
+// within this function, not ROUND_POWER_OF_TWO.
+// This works because of the identity:
+// ROUND_POWER_OF_TWO(x >> y, z) == ROUND_POWER_OF_TWO(x, y+z)
+//
+// In contrast, the output of the non-d32 functions will not be further rounded,
+// so we *should* use ROUND_POWER_OF_TWO there.
+
+void aom_lowbd_blend_a64_d16_mask_c(
+    uint8_t *dst, uint32_t dst_stride, const CONV_BUF_TYPE *src0,
+    uint32_t src0_stride, const CONV_BUF_TYPE *src1, uint32_t src1_stride,
+    const uint8_t *mask, uint32_t mask_stride, int w, int h, int subw, int subh,
+    ConvolveParams *conv_params) {
+  int i, j;
+  const int bd = 8;
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
+                           (1 << (offset_bits - conv_params->round_1 - 1));
+  const int round_bits =
+      2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+
+  assert(IMPLIES((void *)src0 == dst, src0_stride == dst_stride));
+  assert(IMPLIES((void *)src1 == dst, src1_stride == dst_stride));
+
+  assert(h >= 4);
+  assert(w >= 4);
+  assert(IS_POWER_OF_TWO(h));
+  assert(IS_POWER_OF_TWO(w));
+
+  if (subw == 0 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = mask[i * mask_stride + j];
+        res = ((m * (int32_t)src0[i * src0_stride + j] +
+                (AOM_BLEND_A64_MAX_ALPHA - m) *
+                    (int32_t)src1[i * src1_stride + j]) >>
+               AOM_BLEND_A64_ROUND_BITS);
+        res -= round_offset;
+        dst[i * dst_stride + j] =
+            clip_pixel(ROUND_POWER_OF_TWO(res, round_bits));
+      }
+    }
+  } else if (subw == 1 && subh == 1) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = ROUND_POWER_OF_TWO(
+            mask[(2 * i) * mask_stride + (2 * j)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j)] +
+                mask[(2 * i) * mask_stride + (2 * j + 1)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j + 1)],
+            2);
+        res = ((m * (int32_t)src0[i * src0_stride + j] +
+                (AOM_BLEND_A64_MAX_ALPHA - m) *
+                    (int32_t)src1[i * src1_stride + j]) >>
+               AOM_BLEND_A64_ROUND_BITS);
+        res -= round_offset;
+        dst[i * dst_stride + j] =
+            clip_pixel(ROUND_POWER_OF_TWO(res, round_bits));
+      }
+    }
+  } else if (subw == 1 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = AOM_BLEND_AVG(mask[i * mask_stride + (2 * j)],
+                                    mask[i * mask_stride + (2 * j + 1)]);
+        res = ((m * (int32_t)src0[i * src0_stride + j] +
+                (AOM_BLEND_A64_MAX_ALPHA - m) *
+                    (int32_t)src1[i * src1_stride + j]) >>
+               AOM_BLEND_A64_ROUND_BITS);
+        res -= round_offset;
+        dst[i * dst_stride + j] =
+            clip_pixel(ROUND_POWER_OF_TWO(res, round_bits));
+      }
+    }
+  } else {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = AOM_BLEND_AVG(mask[(2 * i) * mask_stride + j],
+                                    mask[(2 * i + 1) * mask_stride + j]);
+        res = ((int32_t)(m * (int32_t)src0[i * src0_stride + j] +
+                         (AOM_BLEND_A64_MAX_ALPHA - m) *
+                             (int32_t)src1[i * src1_stride + j]) >>
+               AOM_BLEND_A64_ROUND_BITS);
+        res -= round_offset;
+        dst[i * dst_stride + j] =
+            clip_pixel(ROUND_POWER_OF_TWO(res, round_bits));
+      }
+    }
+  }
+}
+
+void aom_highbd_blend_a64_d16_mask_c(
+    uint8_t *dst_8, uint32_t dst_stride, const CONV_BUF_TYPE *src0,
+    uint32_t src0_stride, const CONV_BUF_TYPE *src1, uint32_t src1_stride,
+    const uint8_t *mask, uint32_t mask_stride, int w, int h, int subw, int subh,
+    ConvolveParams *conv_params, const int bd) {
+  const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+  const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
+                           (1 << (offset_bits - conv_params->round_1 - 1));
+  const int round_bits =
+      2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+  uint16_t *dst = CONVERT_TO_SHORTPTR(dst_8);
+
+  assert(IMPLIES(src0 == dst, src0_stride == dst_stride));
+  assert(IMPLIES(src1 == dst, src1_stride == dst_stride));
+
+  assert(h >= 1);
+  assert(w >= 1);
+  assert(IS_POWER_OF_TWO(h));
+  assert(IS_POWER_OF_TWO(w));
+
+  // excerpt from clip_pixel_highbd()
+  // set saturation_value to (1 << bd) - 1
+  unsigned int saturation_value;
+  switch (bd) {
+    case 8:
+    default: saturation_value = 255; break;
+    case 10: saturation_value = 1023; break;
+    case 12: saturation_value = 4095; break;
+  }
+
+  if (subw == 0 && subh == 0) {
+    for (int i = 0; i < h; ++i) {
+      for (int j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = mask[j];
+        res = ((m * src0[j] + (AOM_BLEND_A64_MAX_ALPHA - m) * src1[j]) >>
+               AOM_BLEND_A64_ROUND_BITS);
+        res -= round_offset;
+        unsigned int v = negative_to_zero(ROUND_POWER_OF_TWO(res, round_bits));
+        dst[j] = AOMMIN(v, saturation_value);
+      }
+      mask += mask_stride;
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    }
+  } else if (subw == 1 && subh == 1) {
+    for (int i = 0; i < h; ++i) {
+      for (int j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = ROUND_POWER_OF_TWO(
+            mask[2 * j] + mask[mask_stride + 2 * j] + mask[2 * j + 1] +
+                mask[mask_stride + 2 * j + 1],
+            2);
+        res = (m * src0[j] + (AOM_BLEND_A64_MAX_ALPHA - m) * src1[j]) >>
+              AOM_BLEND_A64_ROUND_BITS;
+        res -= round_offset;
+        unsigned int v = negative_to_zero(ROUND_POWER_OF_TWO(res, round_bits));
+        dst[j] = AOMMIN(v, saturation_value);
+      }
+      mask += 2 * mask_stride;
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    }
+  } else if (subw == 1 && subh == 0) {
+    for (int i = 0; i < h; ++i) {
+      for (int j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = AOM_BLEND_AVG(mask[2 * j], mask[2 * j + 1]);
+        res = (m * src0[j] + (AOM_BLEND_A64_MAX_ALPHA - m) * src1[j]) >>
+              AOM_BLEND_A64_ROUND_BITS;
+        res -= round_offset;
+        unsigned int v = negative_to_zero(ROUND_POWER_OF_TWO(res, round_bits));
+        dst[j] = AOMMIN(v, saturation_value);
+      }
+      mask += mask_stride;
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    }
+  } else {
+    for (int i = 0; i < h; ++i) {
+      for (int j = 0; j < w; ++j) {
+        int32_t res;
+        const int m = AOM_BLEND_AVG(mask[j], mask[mask_stride + j]);
+        res = (m * src0[j] + (AOM_BLEND_A64_MAX_ALPHA - m) * src1[j]) >>
+              AOM_BLEND_A64_ROUND_BITS;
+        res -= round_offset;
+        unsigned int v = negative_to_zero(ROUND_POWER_OF_TWO(res, round_bits));
+        dst[j] = AOMMIN(v, saturation_value);
+      }
+      mask += 2 * mask_stride;
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    }
+  }
+}
+
+// Blending with alpha mask. Mask values come from the range [0, 64],
+// as described for AOM_BLEND_A64 in aom_dsp/blend.h. src0 or src1 can
+// be the same as dst, or dst can be different from both sources.
+
+void aom_blend_a64_mask_c(uint8_t *dst, uint32_t dst_stride,
+                          const uint8_t *src0, uint32_t src0_stride,
+                          const uint8_t *src1, uint32_t src1_stride,
+                          const uint8_t *mask, uint32_t mask_stride, int w,
+                          int h, int subw, int subh) {
+  int i, j;
+
+  assert(IMPLIES(src0 == dst, src0_stride == dst_stride));
+  assert(IMPLIES(src1 == dst, src1_stride == dst_stride));
+
+  assert(h >= 1);
+  assert(w >= 1);
+  assert(IS_POWER_OF_TWO(h));
+  assert(IS_POWER_OF_TWO(w));
+
+  if (subw == 0 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = mask[i * mask_stride + j];
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else if (subw == 1 && subh == 1) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = ROUND_POWER_OF_TWO(
+            mask[(2 * i) * mask_stride + (2 * j)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j)] +
+                mask[(2 * i) * mask_stride + (2 * j + 1)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j + 1)],
+            2);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else if (subw == 1 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = AOM_BLEND_AVG(mask[i * mask_stride + (2 * j)],
+                                    mask[i * mask_stride + (2 * j + 1)]);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = AOM_BLEND_AVG(mask[(2 * i) * mask_stride + j],
+                                    mask[(2 * i + 1) * mask_stride + j]);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  }
+}
+
+void aom_highbd_blend_a64_mask_c(uint8_t *dst_8, uint32_t dst_stride,
+                                 const uint8_t *src0_8, uint32_t src0_stride,
+                                 const uint8_t *src1_8, uint32_t src1_stride,
+                                 const uint8_t *mask, uint32_t mask_stride,
+                                 int w, int h, int subw, int subh, int bd) {
+  int i, j;
+  uint16_t *dst = CONVERT_TO_SHORTPTR(dst_8);
+  const uint16_t *src0 = CONVERT_TO_SHORTPTR(src0_8);
+  const uint16_t *src1 = CONVERT_TO_SHORTPTR(src1_8);
+  (void)bd;
+
+  assert(IMPLIES(src0 == dst, src0_stride == dst_stride));
+  assert(IMPLIES(src1 == dst, src1_stride == dst_stride));
+
+  assert(h >= 1);
+  assert(w >= 1);
+  assert(IS_POWER_OF_TWO(h));
+  assert(IS_POWER_OF_TWO(w));
+
+  assert(bd == 8 || bd == 10 || bd == 12);
+
+  if (subw == 0 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = mask[i * mask_stride + j];
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else if (subw == 1 && subh == 1) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = ROUND_POWER_OF_TWO(
+            mask[(2 * i) * mask_stride + (2 * j)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j)] +
+                mask[(2 * i) * mask_stride + (2 * j + 1)] +
+                mask[(2 * i + 1) * mask_stride + (2 * j + 1)],
+            2);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else if (subw == 1 && subh == 0) {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = AOM_BLEND_AVG(mask[i * mask_stride + (2 * j)],
+                                    mask[i * mask_stride + (2 * j + 1)]);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  } else {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; ++j) {
+        const int m = AOM_BLEND_AVG(mask[(2 * i) * mask_stride + j],
+                                    mask[(2 * i + 1) * mask_stride + j]);
+        dst[i * dst_stride + j] = AOM_BLEND_A64(m, src0[i * src0_stride + j],
+                                                src1[i * src1_stride + j]);
+      }
+    }
+  }
+}