Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vpx/src/vpx_image.c

Index: third_party/libvpx/source/libvpx/vpx/src/vpx_image.c
diff --git a/third_party/libvpx/source/libvpx/vpx/src/vpx_image.c b/third_party/libvpx/source/libvpx/vpx/src/vpx_image.c
new file mode 100644
index 0000000000000000000000000000000000000000..9aae12c794ba225ed78a74eb6c36108c431910ef
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vpx/src/vpx_image.c
@@ -0,0 +1,285 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "vpx/vpx_image.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_mem/vpx_mem.h"
+
+static vpx_image_t *img_alloc_helper(vpx_image_t *img,
+                                     vpx_img_fmt_t fmt,
+                                     unsigned int d_w,
+                                     unsigned int d_h,
+                                     unsigned int buf_align,
+                                     unsigned int stride_align,
+                                     unsigned char *img_data) {
+  unsigned int h, w, s, xcs, ycs, bps;
+  unsigned int stride_in_bytes;
+  int align;
+
+  /* Treat align==0 like align==1 */
+  if (!buf_align)
+    buf_align = 1;
+
+  /* Validate alignment (must be power of 2) */
+  if (buf_align & (buf_align - 1))
+    goto fail;
+
+  /* Treat align==0 like align==1 */
+  if (!stride_align)
+    stride_align = 1;
+
+  /* Validate alignment (must be power of 2) */
+  if (stride_align & (stride_align - 1))
+    goto fail;
+
+  /* Get sample size for this format */
+  switch (fmt) {
+    case VPX_IMG_FMT_RGB32:
+    case VPX_IMG_FMT_RGB32_LE:
+    case VPX_IMG_FMT_ARGB:
+    case VPX_IMG_FMT_ARGB_LE:
+      bps = 32;
+      break;
+    case VPX_IMG_FMT_RGB24:
+    case VPX_IMG_FMT_BGR24:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_RGB565:
+    case VPX_IMG_FMT_RGB565_LE:
+    case VPX_IMG_FMT_RGB555:
+    case VPX_IMG_FMT_RGB555_LE:
+    case VPX_IMG_FMT_UYVY:
+    case VPX_IMG_FMT_YUY2:
+    case VPX_IMG_FMT_YVYU:
+      bps = 16;
+      break;
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+      bps = 12;
+      break;
+    case VPX_IMG_FMT_I422:
+    case VPX_IMG_FMT_I440:
+      bps = 16;
+      break;
+    case VPX_IMG_FMT_I444:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_I42016:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_I42216:
+    case VPX_IMG_FMT_I44016:
+      bps = 32;
+      break;
+    case VPX_IMG_FMT_I44416:
+      bps = 48;
+      break;
+    default:
+      bps = 16;
+      break;
+  }
+
+  /* Get chroma shift values for this format */
+  switch (fmt) {
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+    case VPX_IMG_FMT_I422:
+    case VPX_IMG_FMT_I42016:
+    case VPX_IMG_FMT_I42216:
+      xcs = 1;
+      break;
+    default:
+      xcs = 0;
+      break;
+  }
+
+  switch (fmt) {
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_I440:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+    case VPX_IMG_FMT_I42016:
+    case VPX_IMG_FMT_I44016:
+      ycs = 1;
+      break;
+    default:
+      ycs = 0;
+      break;
+  }
+
+  /* Calculate storage sizes given the chroma subsampling */
+  align = (1 << xcs) - 1;
+  w = (d_w + align) & ~align;
+  align = (1 << ycs) - 1;
+  h = (d_h + align) & ~align;
+  s = (fmt & VPX_IMG_FMT_PLANAR) ? w : bps * w / 8;
+  s = (s + stride_align - 1) & ~(stride_align - 1);
+  stride_in_bytes = (fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? s * 2 : s;
+
+  /* Allocate the new image */
+  if (!img) {
+    img = (vpx_image_t *)calloc(1, sizeof(vpx_image_t));
+
+    if (!img)
+      goto fail;
+
+    img->self_allocd = 1;
+  } else {
+    memset(img, 0, sizeof(vpx_image_t));
+  }
+
+  img->img_data = img_data;
+
+  if (!img_data) {
+    const uint64_t alloc_size = (fmt & VPX_IMG_FMT_PLANAR) ?
+                                (uint64_t)h * s * bps / 8 : (uint64_t)h * s;
+
+    if (alloc_size != (size_t)alloc_size)
+      goto fail;
+
+    img->img_data = (uint8_t *)vpx_memalign(buf_align, (size_t)alloc_size);
+    img->img_data_owner = 1;
+  }
+
+  if (!img->img_data)
+    goto fail;
+
+  img->fmt = fmt;
+  img->bit_depth = (fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 16 : 8;
+  img->w = w;
+  img->h = h;
+  img->x_chroma_shift = xcs;
+  img->y_chroma_shift = ycs;
+  img->bps = bps;
+
+  /* Calculate strides */
+  img->stride[VPX_PLANE_Y] = img->stride[VPX_PLANE_ALPHA] = stride_in_bytes;
+  img->stride[VPX_PLANE_U] = img->stride[VPX_PLANE_V] = stride_in_bytes >> xcs;
+
+  /* Default viewport to entire image */
+  if (!vpx_img_set_rect(img, 0, 0, d_w, d_h))
+    return img;
+
+fail:
+  vpx_img_free(img);
+  return NULL;
+}
+
+vpx_image_t *vpx_img_alloc(vpx_image_t  *img,
+                           vpx_img_fmt_t fmt,
+                           unsigned int  d_w,
+                           unsigned int  d_h,
+                           unsigned int  align) {
+  return img_alloc_helper(img, fmt, d_w, d_h, align, align, NULL);
+}
+
+vpx_image_t *vpx_img_wrap(vpx_image_t  *img,
+                          vpx_img_fmt_t fmt,
+                          unsigned int  d_w,
+                          unsigned int  d_h,
+                          unsigned int  stride_align,
+                          unsigned char       *img_data) {
+  /* By setting buf_align = 1, we don't change buffer alignment in this
+   * function. */
+  return img_alloc_helper(img, fmt, d_w, d_h, 1, stride_align, img_data);
+}
+
+int vpx_img_set_rect(vpx_image_t  *img,
+                     unsigned int  x,
+                     unsigned int  y,
+                     unsigned int  w,
+                     unsigned int  h) {
+  unsigned char      *data;
+
+  if (x + w <= img->w && y + h <= img->h) {
+    img->d_w = w;
+    img->d_h = h;
+
+    /* Calculate plane pointers */
+    if (!(img->fmt & VPX_IMG_FMT_PLANAR)) {
+      img->planes[VPX_PLANE_PACKED] =
+        img->img_data + x * img->bps / 8 + y * img->stride[VPX_PLANE_PACKED];
+    } else {
+      const int bytes_per_sample =
+          (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
+      data = img->img_data;
+
+      if (img->fmt & VPX_IMG_FMT_HAS_ALPHA) {
+        img->planes[VPX_PLANE_ALPHA] =
+            data + x * bytes_per_sample + y * img->stride[VPX_PLANE_ALPHA];
+        data += img->h * img->stride[VPX_PLANE_ALPHA];
+      }
+
+      img->planes[VPX_PLANE_Y] = data + x * bytes_per_sample +
+          y * img->stride[VPX_PLANE_Y];
+      data += img->h * img->stride[VPX_PLANE_Y];
+
+      if (!(img->fmt & VPX_IMG_FMT_UV_FLIP)) {
+        img->planes[VPX_PLANE_U] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+        data += (img->h >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+        img->planes[VPX_PLANE_V] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+      } else {
+        img->planes[VPX_PLANE_V] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+        data += (img->h >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+        img->planes[VPX_PLANE_U] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+      }
+    }
+    return 0;
+  }
+  return -1;
+}
+
+void vpx_img_flip(vpx_image_t *img) {
+  /* Note: In the calculation pointer adjustment calculation, we want the
+   * rhs to be promoted to a signed type. Section 6.3.1.8 of the ISO C99
+   * standard indicates that if the adjustment parameter is unsigned, the
+   * stride parameter will be promoted to unsigned, causing errors when
+   * the lhs is a larger type than the rhs.
+   */
+  img->planes[VPX_PLANE_Y] += (signed)(img->d_h - 1) * img->stride[VPX_PLANE_Y];
+  img->stride[VPX_PLANE_Y] = -img->stride[VPX_PLANE_Y];
+
+  img->planes[VPX_PLANE_U] += (signed)((img->d_h >> img->y_chroma_shift) - 1)
+                              * img->stride[VPX_PLANE_U];
+  img->stride[VPX_PLANE_U] = -img->stride[VPX_PLANE_U];
+
+  img->planes[VPX_PLANE_V] += (signed)((img->d_h >> img->y_chroma_shift) - 1)
+                              * img->stride[VPX_PLANE_V];
+  img->stride[VPX_PLANE_V] = -img->stride[VPX_PLANE_V];
+
+  img->planes[VPX_PLANE_ALPHA] += (signed)(img->d_h - 1) * img->stride[VPX_PLANE_ALPHA];
+  img->stride[VPX_PLANE_ALPHA] = -img->stride[VPX_PLANE_ALPHA];
+}
+
+void vpx_img_free(vpx_image_t *img) {
+  if (img) {
+    if (img->img_data && img->img_data_owner)
+      vpx_free(img->img_data);
+
+    if (img->self_allocd)
+      free(img);
+  }
+}