| /* |
| * 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 "./vpx_config.h" |
| #include "vpx_mem/vpx_mem.h" |
| |
| #include "vp9/common/vp9_blockd.h" |
| #include "vp9/common/vp9_entropymode.h" |
| #include "vp9/common/vp9_entropymv.h" |
| #include "vp9/common/vp9_findnearmv.h" |
| #include "vp9/common/vp9_onyxc_int.h" |
| #include "vp9/common/vp9_systemdependent.h" |
| |
| void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) { |
| const int stride = cm->mode_info_stride; |
| int i; |
| |
| // Clear down top border row |
| vpx_memset(mi, 0, sizeof(MODE_INFO) * stride); |
| |
| // Clear left border column |
| for (i = 1; i < cm->mi_rows + 1; i++) |
| vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO)); |
| } |
| |
| void vp9_update_mode_info_in_image(VP9_COMMON *cm, MODE_INFO *mi) { |
| int i, j; |
| |
| // For each in image mode_info element set the in image flag to 1 |
| for (i = 0; i < cm->mi_rows; i++) { |
| MODE_INFO *ptr = mi; |
| for (j = 0; j < cm->mi_cols; j++) { |
| ptr->mbmi.mb_in_image = 1; |
| ptr++; // Next element in the row |
| } |
| |
| // Step over border element at start of next row |
| mi += cm->mode_info_stride; |
| } |
| } |
| |
| void vp9_free_frame_buffers(VP9_COMMON *oci) { |
| int i; |
| |
| for (i = 0; i < NUM_YV12_BUFFERS; i++) |
| vp9_free_frame_buffer(&oci->yv12_fb[i]); |
| |
| vp9_free_frame_buffer(&oci->temp_scale_frame); |
| vp9_free_frame_buffer(&oci->post_proc_buffer); |
| |
| vpx_free(oci->mip); |
| vpx_free(oci->prev_mip); |
| vpx_free(oci->above_seg_context); |
| |
| vpx_free(oci->above_context[0]); |
| for (i = 0; i < MAX_MB_PLANE; i++) |
| oci->above_context[i] = 0; |
| oci->mip = NULL; |
| oci->prev_mip = NULL; |
| oci->above_seg_context = NULL; |
| } |
| |
| static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) { |
| cm->mb_cols = (aligned_width + 8) >> 4; |
| cm->mb_rows = (aligned_height + 8) >> 4; |
| cm->MBs = cm->mb_rows * cm->mb_cols; |
| |
| cm->mi_cols = aligned_width >> LOG2_MI_SIZE; |
| cm->mi_rows = aligned_height >> LOG2_MI_SIZE; |
| cm->mode_info_stride = cm->mi_cols + MI_BLOCK_SIZE; |
| } |
| |
| static void setup_mi(VP9_COMMON *cm) { |
| cm->mi = cm->mip + cm->mode_info_stride + 1; |
| cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1; |
| |
| vpx_memset(cm->mip, 0, |
| cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO)); |
| |
| vp9_update_mode_info_border(cm, cm->mip); |
| vp9_update_mode_info_in_image(cm, cm->mi); |
| |
| vp9_update_mode_info_border(cm, cm->prev_mip); |
| vp9_update_mode_info_in_image(cm, cm->prev_mi); |
| } |
| |
| int vp9_alloc_frame_buffers(VP9_COMMON *oci, int width, int height) { |
| int i, mi_cols; |
| |
| const int aligned_width = ALIGN_POWER_OF_TWO(width, LOG2_MI_SIZE); |
| const int aligned_height = ALIGN_POWER_OF_TWO(height, LOG2_MI_SIZE); |
| const int ss_x = oci->subsampling_x; |
| const int ss_y = oci->subsampling_y; |
| int mi_size; |
| |
| vp9_free_frame_buffers(oci); |
| |
| for (i = 0; i < NUM_YV12_BUFFERS; i++) { |
| oci->fb_idx_ref_cnt[i] = 0; |
| if (vp9_alloc_frame_buffer(&oci->yv12_fb[i], width, height, ss_x, ss_y, |
| VP9BORDERINPIXELS) < 0) |
| goto fail; |
| } |
| |
| oci->new_fb_idx = NUM_YV12_BUFFERS - 1; |
| oci->fb_idx_ref_cnt[oci->new_fb_idx] = 1; |
| |
| for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++) |
| oci->active_ref_idx[i] = i; |
| |
| for (i = 0; i < NUM_REF_FRAMES; i++) { |
| oci->ref_frame_map[i] = i; |
| oci->fb_idx_ref_cnt[i] = 1; |
| } |
| |
| if (vp9_alloc_frame_buffer(&oci->temp_scale_frame, width, 16, ss_x, ss_y, |
| VP9BORDERINPIXELS) < 0) |
| goto fail; |
| |
| if (vp9_alloc_frame_buffer(&oci->post_proc_buffer, width, height, ss_x, ss_y, |
| VP9BORDERINPIXELS) < 0) |
| goto fail; |
| |
| set_mb_mi(oci, aligned_width, aligned_height); |
| |
| // Allocation |
| mi_size = oci->mode_info_stride * (oci->mi_rows + MI_BLOCK_SIZE); |
| |
| oci->mip = vpx_calloc(mi_size, sizeof(MODE_INFO)); |
| if (!oci->mip) |
| goto fail; |
| |
| oci->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO)); |
| if (!oci->prev_mip) |
| goto fail; |
| |
| setup_mi(oci); |
| |
| // FIXME(jkoleszar): allocate subsampled arrays for U/V once subsampling |
| // information is exposed at this level |
| mi_cols = mi_cols_aligned_to_sb(oci->mi_cols); |
| |
| // 2 contexts per 'mi unit', so that we have one context per 4x4 txfm |
| // block where mi unit size is 8x8. |
| # if CONFIG_ALPHA |
| oci->above_context[0] = vpx_calloc(sizeof(ENTROPY_CONTEXT) * 8 * mi_cols, 1); |
| #else |
| oci->above_context[0] = vpx_calloc(sizeof(ENTROPY_CONTEXT) * 6 * mi_cols, 1); |
| #endif |
| if (!oci->above_context[0]) |
| goto fail; |
| |
| for (i = 1; i < MAX_MB_PLANE; i++) |
| oci->above_context[i] = |
| oci->above_context[0] + i * sizeof(ENTROPY_CONTEXT) * 2 * mi_cols; |
| |
| oci->above_seg_context = vpx_calloc(sizeof(PARTITION_CONTEXT) * mi_cols, 1); |
| if (!oci->above_seg_context) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| vp9_free_frame_buffers(oci); |
| return 1; |
| } |
| |
| void vp9_create_common(VP9_COMMON *oci) { |
| vp9_machine_specific_config(oci); |
| |
| vp9_init_mbmode_probs(oci); |
| |
| oci->txfm_mode = ONLY_4X4; |
| oci->comp_pred_mode = HYBRID_PREDICTION; |
| |
| // Initialize reference frame sign bias structure to defaults |
| vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias)); |
| } |
| |
| void vp9_remove_common(VP9_COMMON *oci) { |
| vp9_free_frame_buffers(oci); |
| } |
| |
| void vp9_initialize_common() { |
| vp9_coef_tree_initialize(); |
| vp9_entropy_mode_init(); |
| vp9_entropy_mv_init(); |
| } |
| |
| void vp9_update_frame_size(VP9_COMMON *cm) { |
| const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, LOG2_MI_SIZE); |
| const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, LOG2_MI_SIZE); |
| |
| set_mb_mi(cm, aligned_width, aligned_height); |
| setup_mi(cm); |
| } |