summaryrefslogtreecommitdiffstats
path: root/third_party/aom/av1/common/alloccommon.c
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/aom/av1/common/alloccommon.c')
-rw-r--r--third_party/aom/av1/common/alloccommon.c300
1 files changed, 300 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/alloccommon.c b/third_party/aom/av1/common/alloccommon.c
new file mode 100644
index 0000000000..1bf81c91d4
--- /dev/null
+++ b/third_party/aom/av1/common/alloccommon.c
@@ -0,0 +1,300 @@
+/*
+ *
+ * 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 "config/aom_config.h"
+
+#include "aom_mem/aom_mem.h"
+
+#include "av1/common/alloccommon.h"
+#include "av1/common/blockd.h"
+#include "av1/common/entropymode.h"
+#include "av1/common/entropymv.h"
+#include "av1/common/onyxc_int.h"
+
+int av1_get_MBs(int width, int height) {
+ const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
+ const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
+ const int mi_cols = aligned_width >> MI_SIZE_LOG2;
+ const int mi_rows = aligned_height >> MI_SIZE_LOG2;
+
+ const int mb_cols = (mi_cols + 2) >> 2;
+ const int mb_rows = (mi_rows + 2) >> 2;
+ return mb_rows * mb_cols;
+}
+
+#if LOOP_FILTER_BITMASK
+static int alloc_loop_filter_mask(AV1_COMMON *cm) {
+ aom_free(cm->lf.lfm);
+ cm->lf.lfm = NULL;
+
+ // Each lfm holds bit masks for all the 4x4 blocks in a max
+ // 64x64 (128x128 for ext_partitions) region. The stride
+ // and rows are rounded up / truncated to a multiple of 16
+ // (32 for ext_partition).
+ cm->lf.lfm_stride = (cm->mi_cols + (MI_SIZE_64X64 - 1)) >> MIN_MIB_SIZE_LOG2;
+ cm->lf.lfm_num = ((cm->mi_rows + (MI_SIZE_64X64 - 1)) >> MIN_MIB_SIZE_LOG2) *
+ cm->lf.lfm_stride;
+ cm->lf.lfm =
+ (LoopFilterMask *)aom_calloc(cm->lf.lfm_num, sizeof(*cm->lf.lfm));
+ if (!cm->lf.lfm) return 1;
+
+ unsigned int i;
+ for (i = 0; i < cm->lf.lfm_num; ++i) av1_zero(cm->lf.lfm[i]);
+
+ return 0;
+}
+
+static void free_loop_filter_mask(AV1_COMMON *cm) {
+ if (cm->lf.lfm == NULL) return;
+
+ aom_free(cm->lf.lfm);
+ cm->lf.lfm = NULL;
+ cm->lf.lfm_num = 0;
+ cm->lf.lfm_stride = 0;
+}
+#endif
+
+void av1_set_mb_mi(AV1_COMMON *cm, int width, int height) {
+ // Ensure that the decoded width and height are both multiples of
+ // 8 luma pixels (note: this may only be a multiple of 4 chroma pixels if
+ // subsampling is used).
+ // This simplifies the implementation of various experiments,
+ // eg. cdef, which operates on units of 8x8 luma pixels.
+ const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
+ const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
+
+ cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
+ cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
+ cm->mi_stride = calc_mi_size(cm->mi_cols);
+
+ cm->mb_cols = (cm->mi_cols + 2) >> 2;
+ cm->mb_rows = (cm->mi_rows + 2) >> 2;
+ cm->MBs = cm->mb_rows * cm->mb_cols;
+
+#if LOOP_FILTER_BITMASK
+ alloc_loop_filter_mask(cm);
+#endif
+}
+
+void av1_free_ref_frame_buffers(BufferPool *pool) {
+ int i;
+
+ for (i = 0; i < FRAME_BUFFERS; ++i) {
+ if (pool->frame_bufs[i].ref_count > 0 &&
+ pool->frame_bufs[i].raw_frame_buffer.data != NULL) {
+ pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer);
+ pool->frame_bufs[i].ref_count = 0;
+ }
+ aom_free(pool->frame_bufs[i].mvs);
+ pool->frame_bufs[i].mvs = NULL;
+ aom_free(pool->frame_bufs[i].seg_map);
+ pool->frame_bufs[i].seg_map = NULL;
+ aom_free_frame_buffer(&pool->frame_bufs[i].buf);
+ }
+}
+
+// Assumes cm->rst_info[p].restoration_unit_size is already initialized
+void av1_alloc_restoration_buffers(AV1_COMMON *cm) {
+ const int num_planes = av1_num_planes(cm);
+ for (int p = 0; p < num_planes; ++p)
+ av1_alloc_restoration_struct(cm, &cm->rst_info[p], p > 0);
+
+ if (cm->rst_tmpbuf == NULL) {
+ CHECK_MEM_ERROR(cm, cm->rst_tmpbuf,
+ (int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE));
+ }
+
+ if (cm->rlbs == NULL) {
+ CHECK_MEM_ERROR(cm, cm->rlbs, aom_malloc(sizeof(RestorationLineBuffers)));
+ }
+
+ // For striped loop restoration, we divide each row of tiles into "stripes",
+ // of height 64 luma pixels but with an offset by RESTORATION_UNIT_OFFSET
+ // luma pixels to match the output from CDEF. We will need to store 2 *
+ // RESTORATION_CTX_VERT lines of data for each stripe, and also need to be
+ // able to quickly answer the question "Where is the <n>'th stripe for tile
+ // row <m>?" To make that efficient, we generate the rst_last_stripe array.
+ int num_stripes = 0;
+ for (int i = 0; i < cm->tile_rows; ++i) {
+ TileInfo tile_info;
+ av1_tile_set_row(&tile_info, cm, i);
+ const int mi_h = tile_info.mi_row_end - tile_info.mi_row_start;
+ const int ext_h = RESTORATION_UNIT_OFFSET + (mi_h << MI_SIZE_LOG2);
+ const int tile_stripes = (ext_h + 63) / 64;
+ num_stripes += tile_stripes;
+ cm->rst_end_stripe[i] = num_stripes;
+ }
+
+ // Now we need to allocate enough space to store the line buffers for the
+ // stripes
+ const int frame_w = cm->superres_upscaled_width;
+ const int use_highbd = cm->seq_params.use_highbitdepth ? 1 : 0;
+
+ for (int p = 0; p < num_planes; ++p) {
+ const int is_uv = p > 0;
+ const int ss_x = is_uv && cm->seq_params.subsampling_x;
+ const int plane_w = ((frame_w + ss_x) >> ss_x) + 2 * RESTORATION_EXTRA_HORZ;
+ const int stride = ALIGN_POWER_OF_TWO(plane_w, 5);
+ const int buf_size = num_stripes * stride * RESTORATION_CTX_VERT
+ << use_highbd;
+ RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
+
+ if (buf_size != boundaries->stripe_boundary_size ||
+ boundaries->stripe_boundary_above == NULL ||
+ boundaries->stripe_boundary_below == NULL) {
+ aom_free(boundaries->stripe_boundary_above);
+ aom_free(boundaries->stripe_boundary_below);
+
+ CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_above,
+ (uint8_t *)aom_memalign(32, buf_size));
+ CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_below,
+ (uint8_t *)aom_memalign(32, buf_size));
+
+ boundaries->stripe_boundary_size = buf_size;
+ }
+ boundaries->stripe_boundary_stride = stride;
+ }
+}
+
+void av1_free_restoration_buffers(AV1_COMMON *cm) {
+ int p;
+ for (p = 0; p < MAX_MB_PLANE; ++p)
+ av1_free_restoration_struct(&cm->rst_info[p]);
+ aom_free(cm->rst_tmpbuf);
+ cm->rst_tmpbuf = NULL;
+ aom_free(cm->rlbs);
+ cm->rlbs = NULL;
+ for (p = 0; p < MAX_MB_PLANE; ++p) {
+ RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
+ aom_free(boundaries->stripe_boundary_above);
+ aom_free(boundaries->stripe_boundary_below);
+ boundaries->stripe_boundary_above = NULL;
+ boundaries->stripe_boundary_below = NULL;
+ }
+
+ aom_free_frame_buffer(&cm->rst_frame);
+}
+
+void av1_free_above_context_buffers(AV1_COMMON *cm,
+ int num_free_above_contexts) {
+ int i;
+ const int num_planes = cm->num_allocated_above_context_planes;
+
+ for (int tile_row = 0; tile_row < num_free_above_contexts; tile_row++) {
+ for (i = 0; i < num_planes; i++) {
+ aom_free(cm->above_context[i][tile_row]);
+ cm->above_context[i][tile_row] = NULL;
+ }
+ aom_free(cm->above_seg_context[tile_row]);
+ cm->above_seg_context[tile_row] = NULL;
+
+ aom_free(cm->above_txfm_context[tile_row]);
+ cm->above_txfm_context[tile_row] = NULL;
+ }
+ for (i = 0; i < num_planes; i++) {
+ aom_free(cm->above_context[i]);
+ cm->above_context[i] = NULL;
+ }
+ aom_free(cm->above_seg_context);
+ cm->above_seg_context = NULL;
+
+ aom_free(cm->above_txfm_context);
+ cm->above_txfm_context = NULL;
+
+ cm->num_allocated_above_contexts = 0;
+ cm->num_allocated_above_context_mi_col = 0;
+ cm->num_allocated_above_context_planes = 0;
+}
+
+void av1_free_context_buffers(AV1_COMMON *cm) {
+ cm->free_mi(cm);
+
+ av1_free_above_context_buffers(cm, cm->num_allocated_above_contexts);
+
+#if LOOP_FILTER_BITMASK
+ free_loop_filter_mask(cm);
+#endif
+}
+
+int av1_alloc_above_context_buffers(AV1_COMMON *cm,
+ int num_alloc_above_contexts) {
+ const int num_planes = av1_num_planes(cm);
+ int plane_idx;
+ const int aligned_mi_cols =
+ ALIGN_POWER_OF_TWO(cm->mi_cols, MAX_MIB_SIZE_LOG2);
+
+ // Allocate above context buffers
+ cm->num_allocated_above_contexts = num_alloc_above_contexts;
+ cm->num_allocated_above_context_mi_col = aligned_mi_cols;
+ cm->num_allocated_above_context_planes = num_planes;
+ for (plane_idx = 0; plane_idx < num_planes; plane_idx++) {
+ cm->above_context[plane_idx] = (ENTROPY_CONTEXT **)aom_calloc(
+ num_alloc_above_contexts, sizeof(cm->above_context[0]));
+ if (!cm->above_context[plane_idx]) return 1;
+ }
+
+ cm->above_seg_context = (PARTITION_CONTEXT **)aom_calloc(
+ num_alloc_above_contexts, sizeof(cm->above_seg_context));
+ if (!cm->above_seg_context) return 1;
+
+ cm->above_txfm_context = (TXFM_CONTEXT **)aom_calloc(
+ num_alloc_above_contexts, sizeof(cm->above_txfm_context));
+ if (!cm->above_txfm_context) return 1;
+
+ for (int tile_row = 0; tile_row < num_alloc_above_contexts; tile_row++) {
+ for (plane_idx = 0; plane_idx < num_planes; plane_idx++) {
+ cm->above_context[plane_idx][tile_row] = (ENTROPY_CONTEXT *)aom_calloc(
+ aligned_mi_cols, sizeof(*cm->above_context[0][tile_row]));
+ if (!cm->above_context[plane_idx][tile_row]) return 1;
+ }
+
+ cm->above_seg_context[tile_row] = (PARTITION_CONTEXT *)aom_calloc(
+ aligned_mi_cols, sizeof(*cm->above_seg_context[tile_row]));
+ if (!cm->above_seg_context[tile_row]) return 1;
+
+ cm->above_txfm_context[tile_row] = (TXFM_CONTEXT *)aom_calloc(
+ aligned_mi_cols, sizeof(*cm->above_txfm_context[tile_row]));
+ if (!cm->above_txfm_context[tile_row]) return 1;
+ }
+
+ return 0;
+}
+
+int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height) {
+ int new_mi_size;
+
+ av1_set_mb_mi(cm, width, height);
+ new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows);
+ if (cm->mi_alloc_size < new_mi_size) {
+ cm->free_mi(cm);
+ if (cm->alloc_mi(cm, new_mi_size)) goto fail;
+ }
+
+ return 0;
+
+fail:
+ // clear the mi_* values to force a realloc on resync
+ av1_set_mb_mi(cm, 0, 0);
+ av1_free_context_buffers(cm);
+ return 1;
+}
+
+void av1_remove_common(AV1_COMMON *cm) {
+ av1_free_context_buffers(cm);
+
+ aom_free(cm->fc);
+ cm->fc = NULL;
+ aom_free(cm->frame_contexts);
+ cm->frame_contexts = NULL;
+}
+
+void av1_init_context_buffers(AV1_COMMON *cm) { cm->setup_mi(cm); }