mirror of
https://github.com/godotengine/godot.git
synced 2024-12-27 11:24:59 +08:00
55 lines
1.8 KiB
C
55 lines
1.8 KiB
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 <string.h>
|
|
|
|
#include "vpx_config.h"
|
|
#include "./vpx_dsp_rtcd.h"
|
|
#include "vp8_rtcd.h"
|
|
#include "blockd.h"
|
|
|
|
typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left);
|
|
|
|
static intra_pred_fn pred[10];
|
|
|
|
void vp8_init_intra4x4_predictors_internal(void)
|
|
{
|
|
pred[B_DC_PRED] = vpx_dc_predictor_4x4;
|
|
pred[B_TM_PRED] = vpx_tm_predictor_4x4;
|
|
pred[B_VE_PRED] = vpx_ve_predictor_4x4;
|
|
pred[B_HE_PRED] = vpx_he_predictor_4x4;
|
|
pred[B_LD_PRED] = vpx_d45e_predictor_4x4;
|
|
pred[B_RD_PRED] = vpx_d135_predictor_4x4;
|
|
pred[B_VR_PRED] = vpx_d117_predictor_4x4;
|
|
pred[B_VL_PRED] = vpx_d63f_predictor_4x4;
|
|
pred[B_HD_PRED] = vpx_d153_predictor_4x4;
|
|
pred[B_HU_PRED] = vpx_d207_predictor_4x4;
|
|
}
|
|
|
|
void vp8_intra4x4_predict(unsigned char *above,
|
|
unsigned char *yleft, int left_stride,
|
|
B_PREDICTION_MODE b_mode,
|
|
unsigned char *dst, int dst_stride,
|
|
unsigned char top_left)
|
|
{
|
|
unsigned char Left[4];
|
|
unsigned char Aboveb[12], *Above = Aboveb + 4;
|
|
|
|
Left[0] = yleft[0];
|
|
Left[1] = yleft[left_stride];
|
|
Left[2] = yleft[2 * left_stride];
|
|
Left[3] = yleft[3 * left_stride];
|
|
memcpy(Above, above, 8);
|
|
Above[-1] = top_left;
|
|
|
|
pred[b_mode](dst, dst_stride, Above, Left);
|
|
}
|