ref: d9ca52452bff9481ec1ed4684985a86fb7fc3c3e
dir: /vp8/common/alloccommon.c/
/* * 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 "blockd.h" #include "vpx_mem/vpx_mem.h" #include "onyxc_int.h" #include "findnearmv.h" #include "entropymode.h" #include "systemdependent.h" extern void vp8_init_scan_order_mask(); static void update_mode_info_border(MODE_INFO *mi, int rows, int cols) { int i; vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1)); for (i = 0; i < rows; i++) { /* TODO(holmer): Bug? This updates the last element of each row * rather than the border element! */ vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO)); } } void vp8_de_alloc_frame_buffers(VP8_COMMON *oci) { int i; for (i = 0; i < NUM_YV12_BUFFERS; i++) vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]); vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame); #if CONFIG_POSTPROC vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer); if (oci->post_proc_buffer_int_used) vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer_int); #endif vpx_free(oci->above_context); vpx_free(oci->mip); vpx_free(oci->prev_mip); oci->above_context = 0; oci->mip = 0; oci->prev_mip = 0; } int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height) { int i; vp8_de_alloc_frame_buffers(oci); /* our internal buffers are always multiples of 16 */ if ((width & 0xf) != 0) width += 16 - (width & 0xf); if ((height & 0xf) != 0) height += 16 - (height & 0xf); for (i = 0; i < NUM_YV12_BUFFERS; i++) { oci->fb_idx_ref_cnt[i] = 0; oci->yv12_fb[i].flags = 0; if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i], width, height, VP8BORDERINPIXELS) < 0) { vp8_de_alloc_frame_buffers(oci); return 1; } } oci->new_fb_idx = 0; oci->lst_fb_idx = 1; oci->gld_fb_idx = 2; oci->alt_fb_idx = 3; oci->fb_idx_ref_cnt[0] = 1; oci->fb_idx_ref_cnt[1] = 1; oci->fb_idx_ref_cnt[2] = 1; oci->fb_idx_ref_cnt[3] = 1; if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame, width, 16, VP8BORDERINPIXELS) < 0) { vp8_de_alloc_frame_buffers(oci); return 1; } #if CONFIG_POSTPROC if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0) { vp8_de_alloc_frame_buffers(oci); return 1; } oci->post_proc_buffer_int_used = 0; vpx_memset(&oci->postproc_state, 0, sizeof(oci->postproc_state)); vpx_memset((&oci->post_proc_buffer)->buffer_alloc,128,(&oci->post_proc_buffer)->frame_size); #endif oci->mb_rows = height >> 4; oci->mb_cols = width >> 4; oci->MBs = oci->mb_rows * oci->mb_cols; oci->mode_info_stride = oci->mb_cols + 1; oci->mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO)); if (!oci->mip) { vp8_de_alloc_frame_buffers(oci); return 1; } oci->mi = oci->mip + oci->mode_info_stride + 1; /* allocate memory for last frame MODE_INFO array */ #if CONFIG_ERROR_CONCEALMENT oci->prev_mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO)); if (!oci->prev_mip) { vp8_de_alloc_frame_buffers(oci); return 1; } oci->prev_mi = oci->prev_mip + oci->mode_info_stride + 1; #else oci->prev_mip = NULL; oci->prev_mi = NULL; #endif oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1); if (!oci->above_context) { vp8_de_alloc_frame_buffers(oci); return 1; } update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols); #if CONFIG_ERROR_CONCEALMENT update_mode_info_border(oci->prev_mi, oci->mb_rows, oci->mb_cols); #endif return 0; } void vp8_setup_version(VP8_COMMON *cm) { switch (cm->version) { case 0: cm->no_lpf = 0; cm->filter_type = NORMAL_LOOPFILTER; cm->use_bilinear_mc_filter = 0; cm->full_pixel = 0; break; case 1: cm->no_lpf = 0; cm->filter_type = SIMPLE_LOOPFILTER; cm->use_bilinear_mc_filter = 1; cm->full_pixel = 0; break; case 2: cm->no_lpf = 1; cm->filter_type = NORMAL_LOOPFILTER; cm->use_bilinear_mc_filter = 1; cm->full_pixel = 0; break; case 3: cm->no_lpf = 1; cm->filter_type = SIMPLE_LOOPFILTER; cm->use_bilinear_mc_filter = 1; cm->full_pixel = 1; break; default: /*4,5,6,7 are reserved for future use*/ cm->no_lpf = 0; cm->filter_type = NORMAL_LOOPFILTER; cm->use_bilinear_mc_filter = 0; cm->full_pixel = 0; break; } } void vp8_create_common(VP8_COMMON *oci) { vp8_machine_specific_config(oci); vp8_init_mbmode_probs(oci); vp8_default_bmode_probs(oci->fc.bmode_prob); oci->mb_no_coeff_skip = 1; oci->no_lpf = 0; oci->filter_type = NORMAL_LOOPFILTER; oci->use_bilinear_mc_filter = 0; oci->full_pixel = 0; oci->multi_token_partition = ONE_PARTITION; oci->clr_type = REG_YUV; oci->clamp_type = RECON_CLAMP_REQUIRED; /* Initialise reference frame sign bias structure to defaults */ vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias)); /* Default disable buffer to buffer copying */ oci->copy_buffer_to_gf = 0; oci->copy_buffer_to_arf = 0; } void vp8_remove_common(VP8_COMMON *oci) { vp8_de_alloc_frame_buffers(oci); } void vp8_initialize_common() { vp8_coef_tree_initialize(); vp8_entropy_mode_init(); vp8_init_scan_order_mask(); }