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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
/* VLC code
*
* Original copyright note:
* DSP functions (inverse transforms, motion compensation, wavelet recompositions)
* for Indeo Video Interactive codecs.
*/
#ifndef IMAGE_CODECS_INDEO_INDEO_DSP_H
#define IMAGE_CODECS_INDEO_INDEO_DSP_H
#include "image/codecs/indeo/mem.h"
#include "image/codecs/indeo/indeo.h"
namespace Image {
namespace Indeo {
class IndeoDSP {
public:
/**
* two-dimensional inverse Haar 8x8 transform for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviInverseHaar8x8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
static void ffIviInverseHaar8x1(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
static void ffIviInverseHaar1x8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* one-dimensional inverse 8-point Haar transform on rows for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviRowHaar8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* one-dimensional inverse 8-point Haar transform on columns for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviColHaar8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* two-dimensional inverse Haar 4x4 transform for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviInverseHaar4x4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* one-dimensional inverse 4-point Haar transform on rows for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviRowHaar4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* one-dimensional inverse 4-point Haar transform on columns for Indeo 4
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviColHaar4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* DC-only two-dimensional inverse Haar transform for Indeo 4.
* Performing the inverse transform in this case is equivalent to
* spreading dcCoeff >> 3 over the whole block.
*
* @param[in] in Pointer to the dc coefficient
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] blkSize Transform block size
*/
static void ffIviDcHaar2d(const int32 *in, int16 *out, uint32 pitch,
int blkSize);
/**
* two-dimensional inverse slant 8x8 transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviInverseSlant8x8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* two-dimensional inverse slant 4x4 transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviInverseSlant4x4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* DC-only two-dimensional inverse slant transform.
* Performing the inverse slant transform in this case is equivalent to
* spreading (dcCoeff + 1)/2 over the whole block.
* It works much faster than performing the slant transform on a vector of zeroes.
*
* @param[in] in Pointer to the dc coefficient
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] blkSize Transform block size
*/
static void ffIviDcSlant2d(const int32 *in, int16 *out, uint32 pitch, int blkSize);
/**
* inverse 1D row slant transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags (unused here)
*/
static void ffIviRowSlant8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* inverse 1D column slant transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviColSlant8(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* inverse 1D row slant transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags (unused here)
*/
static void ffIviRowSlant4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* inverse 1D column slant transform
*
* @param[in] in Pointer to the vector of transform coefficients
* @param[out] out Pointer to the output buffer (frame)
* @param[in] pitch Pitch to move to the next y line
* @param[in] flags Pointer to the array of column flags:
* != 0 - non_empty column, 0 - empty one
* (this array must be filled by caller)
*/
static void ffIviColSlant4(const int32 *in, int16 *out, uint32 pitch,
const uint8 *flags);
/**
* DC-only inverse row slant transform
*/
static void ffIviDcRowSlant(const int32 *in, int16 *out, uint32 pitch, int blkSize);
/**
* DC-only inverse column slant transform
*/
static void ffIviDcColSlant(const int32 *in, int16 *out, uint32 pitch, int blkSize);
/**
* Copy the pixels into the frame buffer.
*/
static void ffIviPutPixels8x8(const int32 *in, int16 *out, uint32 pitch, const uint8 *flags);
/**
* Copy the DC coefficient into the first pixel of the block and
* zero all others.
*/
static void ffIviPutDcPixel8x8(const int32 *in, int16 *out, uint32 pitch, int blkSize);
/**
* 8x8 block motion compensation with adding delta
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type
*/
static void ffIviMc8x8Delta(int16 *buf, const int16 *refBuf, uint32 pitch, int mcType);
/**
* 4x4 block motion compensation with adding delta
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type
*/
static void ffIviMc4x4Delta(int16 *buf, const int16 *refBuf, uint32 pitch, int mcType);
/**
* motion compensation without adding delta
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type
*/
static void ffIviMc8x8NoDelta(int16 *buf, const int16 *refBuf, uint32 pitch, int mcType);
/**
* 4x4 block motion compensation without adding delta
*
* @param[in,out] buf Pointer to the block in the current frame receiving the result
* @param[in] refBuf Pointer to the corresponding block in the reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type
*/
static void ffIviMc4x4NoDelta(int16 *buf, const int16 *refBuf, uint32 pitch, int mcType);
/**
* 8x8 block motion compensation with adding delta
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the backward reference frame
* @param[in] refBuf2 Pointer to the corresponding block in the forward reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type for backward reference
* @param[in] mcType2 Interpolation type for forward reference
*/
static void ffIviMcAvg8x8Delta(int16 *buf, const int16 *refBuf, const int16 *refBuf2, uint32 pitch, int mcType, int mcType2);
/**
* 4x4 block motion compensation with adding delta
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the backward reference frame
* @param[in] refBuf2 Pointer to the corresponding block in the forward reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type for backward reference
* @param[in] mcType2 Interpolation type for forward reference
*/
static void ffIviMcAvg4x4Delta(int16 *buf, const int16 *refBuf, const int16 *refBuf2, uint32 pitch, int mcType, int mcType2);
/**
* motion compensation without adding delta for B-frames
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the backward reference frame
* @param[in] refBuf2 Pointer to the corresponding block in the forward reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type for backward reference
* @param[in] mcType2 Interpolation type for forward reference
*/
static void ffIviMcAvg8x8NoDelta(int16 *buf, const int16 *refBuf, const int16 *refBuf2, uint32 pitch, int mcType, int mcType2);
/**
* 4x4 block motion compensation without adding delta for B-frames
*
* @param[in,out] buf Pointer to the block in the current frame buffer containing delta
* @param[in] refBuf Pointer to the corresponding block in the backward reference frame
* @param[in] refBuf2 Pointer to the corresponding block in the forward reference frame
* @param[in] pitch Pitch for moving to the next y line
* @param[in] mcType Interpolation type for backward reference
* @param[in] mcType2 Interpolation type for forward reference
*/
static void ffIviMcAvg4x4NoDelta(int16 *buf, const int16 *refBuf, const int16 *refBuf2, uint32 pitch, int mcType, int mcType2);
};
} // End of namespace Indeo
} // End of namespace Image
#endif
|
