/* *  Copyright (c) 2010 The VP8 project authors. All Rights Reserved. * *  Use of this source code is governed by a BSD-style license and patent *  grant that can be found in the LICENSE file in the root of the source *  tree. All contributing project authors may be found in the AUTHORS *  file in the root of the source tree. */  #ifndef WIN32# include <unistd.h>#endif#include "onyxd_int.h"#include "vpx_mem/vpx_mem.h"#include "threading.h" #include "loopfilter.h"#include "extend.h"#include "vpx_ports/vpx_timer.h" extern void vp8_decode_mb_row(VP8D_COMP *pbi,                              VP8_COMMON *pc,                              int mb_row,                              MACROBLOCKD *xd); extern void vp8_build_uvmvs(MACROBLOCKD *x, int fullpixel);extern void vp8_decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd); void vp8_setup_decoding_thread_data(VP8D_COMP *pbi, MACROBLOCKD *xd, MB_ROW_DEC *mbrd, int count){   #if CONFIG_MULTITHREAD    VP8_COMMON *const pc = & pbi->common;    int i, j;     for (i = 0; i < count; i++)    {        MACROBLOCKD *mbd = &mbrd[i].mbd;#if CONFIG_RUNTIME_CPU_DETECT        mbd->rtcd = xd->rtcd;#endif          mbd->subpixel_predict        = xd->subpixel_predict;        mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;        mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;        mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;        mbd->gf_active_ptr            = xd->gf_active_ptr;         mbd->mode_info        = pc->mi - 1;        mbd->mode_info_context = pc->mi   + pc->mode_info_stride * (i + 1);        mbd->mode_info_stride  = pc->mode_info_stride;         mbd->frame_type = pc->frame_type;        mbd->frames_since_golden      = pc->frames_since_golden;        mbd->frames_till_alt_ref_frame  = pc->frames_till_alt_ref_frame;         mbd->pre = pc->last_frame;        mbd->dst = pc->new_frame;            vp8_setup_block_dptrs(mbd);        vp8_build_block_doffsets(mbd);        mbd->segmentation_enabled    = xd->segmentation_enabled;        mbd->mb_segement_abs_delta     = xd->mb_segement_abs_delta;        vpx_memcpy(mbd->segment_feature_data, xd->segment_feature_data, sizeof(xd->segment_feature_data));         mbd->mbmi.mode = DC_PRED;        mbd->mbmi.uv_mode = DC_PRED;         mbd->current_bc = &pbi->bc2;         for (j = 0; j < 25; j++)        {            mbd->block[j].dequant = xd->block[j].dequant;        }    } #else    (void) pbi;    (void) xd;    (void) mbrd;    (void) count;#endif}  THREAD_FUNCTION vp8_thread_decoding_proc(void *p_data){#if CONFIG_MULTITHREAD    int ithread = ((DECODETHREAD_DATA *)p_data)->ithread;    VP8D_COMP *pbi = (VP8D_COMP *)(((DECODETHREAD_DATA *)p_data)->ptr1);    MB_ROW_DEC *mbrd = (MB_ROW_DEC *)(((DECODETHREAD_DATA *)p_data)->ptr2);    ENTROPY_CONTEXT mb_row_left_context[4][4];     while (1)    {        if (pbi->b_multithreaded_rd == 0)            break;         //if(WaitForSingleObject(pbi->h_event_mbrdecoding[ithread], INFINITE) == WAIT_OBJECT_0)        if (sem_wait(&pbi->h_event_mbrdecoding[ithread]) == 0)        {            if (pbi->b_multithreaded_rd == 0)                break;            else            {                VP8_COMMON *pc = &pbi->common;                int mb_row       = mbrd->mb_row;                MACROBLOCKD *xd = &mbrd->mbd;                 //printf("ithread:%d mb_row %d\n", ithread, mb_row);                int i;                int recon_yoffset, recon_uvoffset;                int mb_col;                int recon_y_stride = pc->last_frame.y_stride;                int recon_uv_stride = pc->last_frame.uv_stride;                 volatile int *last_row_current_mb_col;                 if (ithread > 0)                    last_row_current_mb_col = &pbi->mb_row_di[ithread-1].current_mb_col;                else                    last_row_current_mb_col = &pbi->current_mb_col_main;                 recon_yoffset = mb_row * recon_y_stride * 16;                recon_uvoffset = mb_row * recon_uv_stride * 8;                // reset above block coeffs                 xd->above_context[Y1CONTEXT] = pc->above_context[Y1CONTEXT];                xd->above_context[UCONTEXT ] = pc->above_context[UCONTEXT];                xd->above_context[VCONTEXT ] = pc->above_context[VCONTEXT];                xd->above_context[Y2CONTEXT] = pc->above_context[Y2CONTEXT];                xd->left_context = mb_row_left_context;                vpx_memset(mb_row_left_context, 0, sizeof(mb_row_left_context));                xd->up_available = (mb_row != 0);                 xd->mb_to_top_edge = -((mb_row * 16)) << 3;                xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3;                 for (mb_col = 0; mb_col < pc->mb_cols; mb_col++)                {                     while (mb_col > (*last_row_current_mb_col - 1) && *last_row_current_mb_col != pc->mb_cols - 1)                    {                        x86_pause_hint();                        thread_sleep(0);                    }                     // Take a copy of the mode and Mv information for this macroblock into the xd->mbmi                    vpx_memcpy(&xd->mbmi, &xd->mode_info_context->mbmi, 32); //sizeof(MB_MODE_INFO) );                     if (xd->mbmi.mode == SPLITMV || xd->mbmi.mode == B_PRED)                    {                        for (i = 0; i < 16; i++)                        {                            BLOCKD *d = &xd->block[i];                            vpx_memcpy(&d->bmi, &xd->mode_info_context->bmi[i], sizeof(B_MODE_INFO));                        }                    }                     // Distance of Mb to the various image edges.                    // These specified to 8th pel as they are always compared to values that are in 1/8th pel units                    xd->mb_to_left_edge = -((mb_col * 16) << 3);                    xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3;                     xd->dst.y_buffer = pc->new_frame.y_buffer + recon_yoffset;                    xd->dst.u_buffer = pc->new_frame.u_buffer + recon_uvoffset;                    xd->dst.v_buffer = pc->new_frame.v_buffer + recon_uvoffset;                     xd->left_available = (mb_col != 0);                     // Select the appropriate reference frame for this MB                    if (xd->mbmi.ref_frame == LAST_FRAME)                    {                        xd->pre.y_buffer = pc->last_frame.y_buffer + recon_yoffset;                        xd->pre.u_buffer = pc->last_frame.u_buffer + recon_uvoffset;                        xd->pre.v_buffer = pc->last_frame.v_buffer + recon_uvoffset;                    }                    else if (xd->mbmi.ref_frame == GOLDEN_FRAME)                    {                        // Golden frame reconstruction buffer                        xd->pre.y_buffer = pc->golden_frame.y_buffer + recon_yoffset;                        xd->pre.u_buffer = pc->golden_frame.u_buffer + recon_uvoffset;                        xd->pre.v_buffer = pc->golden_frame.v_buffer + recon_uvoffset;                    }                    else                    {                        // Alternate reference frame reconstruction buffer                        xd->pre.y_buffer = pc->alt_ref_frame.y_buffer + recon_yoffset;                        xd->pre.u_buffer = pc->alt_ref_frame.u_buffer + recon_uvoffset;                        xd->pre.v_buffer = pc->alt_ref_frame.v_buffer + recon_uvoffset;                    }                     vp8_build_uvmvs(xd, pc->full_pixel);                     vp8dx_bool_decoder_fill(xd->current_bc);                    vp8_decode_macroblock(pbi, xd);                      recon_yoffset += 16;                    recon_uvoffset += 8;                     ++xd->mode_info_context;  /* next mb */                     xd->gf_active_ptr++;      // GF useage flag for next MB                     xd->above_context[Y1CONTEXT] += 4;                    xd->above_context[UCONTEXT ] += 2;                    xd->above_context[VCONTEXT ] += 2;                    xd->above_context[Y2CONTEXT] ++;                    pbi->mb_row_di[ithread].current_mb_col = mb_col;                 }                 // adjust to the next row of mbs                vp8_extend_mb_row(                    &pc->new_frame,                    xd->dst.y_buffer + 16, xd->dst.u_buffer + 8, xd->dst.v_buffer + 8                );                 ++xd->mode_info_context;      /* skip prediction column */                 // since we have multithread                xd->mode_info_context += xd->mode_info_stride * pbi->decoding_thread_count;                 //memcpy(&pbi->lpfmb, &pbi->mb, sizeof(pbi->mb));                if ((mb_row & 1) == 1)                {                    pbi->last_mb_row_decoded = mb_row;                    //printf("S%d", pbi->last_mb_row_decoded);                }                 if (ithread == (pbi->decoding_thread_count - 1) || mb_row == pc->mb_rows - 1)                {                    //SetEvent(pbi->h_event_main);                    sem_post(&pbi->h_event_main);                 }            }        }    } #else    (void) p_data;#endif     return 0 ;} THREAD_FUNCTION vp8_thread_loop_filter(void *p_data){#if CONFIG_MULTITHREAD    VP8D_COMP *pbi = (VP8D_COMP *)p_data;     while (1)    {        if (pbi->b_multithreaded_lf == 0)            break;         //printf("before waiting for start_lpf\n");         //if(WaitForSingleObject(pbi->h_event_start_lpf, INFINITE) == WAIT_OBJECT_0)        if (sem_wait(&pbi->h_event_start_lpf) == 0)        {            if (pbi->b_multithreaded_lf == 0) // we're shutting down                break;            else            {                 VP8_COMMON *cm  = &pbi->common;                MACROBLOCKD *mbd = &pbi->lpfmb;                int default_filt_lvl = pbi->common.filter_level;                 YV12_BUFFER_CONFIG *post = &cm->new_frame;                loop_filter_info *lfi = cm->lf_info;                 int mb_row;                int mb_col;                  int baseline_filter_level[MAX_MB_SEGMENTS];                int filter_level;                int alt_flt_enabled = mbd->segmentation_enabled;                 int i;                unsigned char *y_ptr, *u_ptr, *v_ptr;                 volatile int *last_mb_row_decoded = &pbi->last_mb_row_decoded;                 //MODE_INFO * this_mb_mode_info = cm->mi;                mbd->mode_info_context = cm->mi;          // Point at base of Mb MODE_INFO list                 // Note the baseline filter values for each segment                if (alt_flt_enabled)                {                    for (i = 0; i < MAX_MB_SEGMENTS; i++)                    {                        if (mbd->mb_segement_abs_delta == SEGMENT_ABSDATA)                            baseline_filter_level[i] = mbd->segment_feature_data[MB_LVL_ALT_LF][i];                        else                        {                            baseline_filter_level[i] = default_filt_lvl + mbd->segment_feature_data[MB_LVL_ALT_LF][i];                            baseline_filter_level[i] = (baseline_filter_level[i] >= 0) ? ((baseline_filter_level[i] <= MAX_LOOP_FILTER) ? baseline_filter_level[i] : MAX_LOOP_FILTER) : 0;  // Clamp to valid range                        }                    }                }                else                {                    for (i = 0; i < MAX_MB_SEGMENTS; i++)                        baseline_filter_level[i] = default_filt_lvl;                }                 // Initialize the loop filter for this frame.                vp8_init_loop_filter(cm);                 // Set up the buffer pointers                y_ptr = post->y_buffer;                u_ptr = post->u_buffer;                v_ptr = post->v_buffer;                 // vp8_filter each macro block                for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)                {                     while (mb_row >= *last_mb_row_decoded)                    {                        x86_pause_hint();                        thread_sleep(0);                    }                     //printf("R%d", mb_row);                    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)                    {                        int Segment = (alt_flt_enabled) ? mbd->mode_info_context->mbmi.segment_id : 0;                         filter_level = baseline_filter_level[Segment];                         // Apply any context driven MB level adjustment                        vp8_adjust_mb_lf_value(mbd, &filter_level);                         if (filter_level)                        {                            if (mb_col > 0)                                cm->lf_mbv(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf);                             if (mbd->mode_info_context->mbmi.dc_diff > 0)                                cm->lf_bv(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf);                             // don't apply across umv border                            if (mb_row > 0)                                cm->lf_mbh(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf);                             if (mbd->mode_info_context->mbmi.dc_diff > 0)                                cm->lf_bh(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf);                        }                         y_ptr += 16;                        u_ptr += 8;                        v_ptr += 8;                         mbd->mode_info_context++;     // step to next MB                     }                     y_ptr += post->y_stride  * 16 - post->y_width;                    u_ptr += post->uv_stride *  8 - post->uv_width;                    v_ptr += post->uv_stride *  8 - post->uv_width;                     mbd->mode_info_context++;         // Skip border mb                }                 //printf("R%d\n", mb_row);                // When done, signal main thread that ME is finished                //SetEvent(pbi->h_event_lpf);                sem_post(&pbi->h_event_lpf);            }         }    } #else    (void) p_data;#endif    return 0;} void vp8_decoder_create_threads(VP8D_COMP *pbi){#if CONFIG_MULTITHREAD    int core_count = 0;    int ithread;     pbi->b_multithreaded_rd = 0;    pbi->b_multithreaded_lf = 0;    pbi->allocated_decoding_thread_count = 0;    core_count = (pbi->max_threads > 16) ? 16 : pbi->max_threads; //vp8_get_proc_core_count();    if (core_count > 1)    {        sem_init(&pbi->h_event_lpf, 0, 0);        sem_init(&pbi->h_event_start_lpf, 0, 0);        pbi->b_multithreaded_lf = 1;        pthread_create(&pbi->h_thread_lpf, 0, vp8_thread_loop_filter, (pbi));    }     if (core_count > 1)    {        pbi->b_multithreaded_rd = 1;        pbi->decoding_thread_count = core_count - 1;         CHECK_MEM_ERROR(pbi->h_decoding_thread, vpx_malloc(sizeof(pthread_t) * pbi->decoding_thread_count));        CHECK_MEM_ERROR(pbi->h_event_mbrdecoding, vpx_malloc(sizeof(sem_t) * pbi->decoding_thread_count));        CHECK_MEM_ERROR(pbi->mb_row_di, vpx_memalign(32, sizeof(MB_ROW_DEC) * pbi->decoding_thread_count));        vpx_memset(pbi->mb_row_di, 0, sizeof(MB_ROW_DEC) * pbi->decoding_thread_count);        CHECK_MEM_ERROR(pbi->de_thread_data, vpx_malloc(sizeof(DECODETHREAD_DATA) * pbi->decoding_thread_count));         for (ithread = 0; ithread < pbi->decoding_thread_count; ithread++)        {            sem_init(&pbi->h_event_mbrdecoding[ithread], 0, 0);             pbi->de_thread_data[ithread].ithread  = ithread;            pbi->de_thread_data[ithread].ptr1     = (void *)pbi;            pbi->de_thread_data[ithread].ptr2     = (void *) &pbi->mb_row_di[ithread];             pthread_create(&pbi->h_decoding_thread[ithread], 0, vp8_thread_decoding_proc, (&pbi->de_thread_data[ithread]));         }         sem_init(&pbi->h_event_main, 0, 0);        pbi->allocated_decoding_thread_count = pbi->decoding_thread_count;    } #else    (void) pbi;#endif} void vp8_decoder_remove_threads(VP8D_COMP *pbi){#if CONFIG_MULTITHREAD     if (pbi->b_multithreaded_lf)    {        pbi->b_multithreaded_lf = 0;        sem_post(&pbi->h_event_start_lpf);        pthread_join(pbi->h_thread_lpf, 0);        sem_destroy(&pbi->h_event_start_lpf);    }     //shutdown MB Decoding thread;    if (pbi->b_multithreaded_rd)    {        pbi->b_multithreaded_rd = 0;        // allow all threads to exit        {            int i;             for (i = 0; i < pbi->allocated_decoding_thread_count; i++)            {                 sem_post(&pbi->h_event_mbrdecoding[i]);                pthread_join(pbi->h_decoding_thread[i], NULL);            }        }        {             int i;            for (i = 0; i < pbi->allocated_decoding_thread_count; i++)            {                sem_destroy(&pbi->h_event_mbrdecoding[i]);            }          }         sem_destroy(&pbi->h_event_main);         if (pbi->h_decoding_thread)        {            vpx_free(pbi->h_decoding_thread);            pbi->h_decoding_thread = NULL;        }         if (pbi->h_event_mbrdecoding)        {            vpx_free(pbi->h_event_mbrdecoding);            pbi->h_event_mbrdecoding = NULL;        }         if (pbi->mb_row_di)        {            vpx_free(pbi->mb_row_di);            pbi->mb_row_di = NULL ;        } 

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