143 lines
3.9 KiB
C
Executable File
143 lines
3.9 KiB
C
Executable File
/*****************************************************************************
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*
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* This program is free software ; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: intel2700g_idct422.h 271 2005-08-09 08:31:35Z picard $
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*
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* The Core Pocket Media Player
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* Copyright (c) 2004-2005 Gabor Kovacs
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*
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****************************************************************************/
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void IDCTProcess_422(void* p,int x,int y)
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{
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int Pos;
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x <<= 4;
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y <<= 3;
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Pos = (x << GXVA_IMAGE_WRITE_X_SHIFT) | (y << GXVA_IMAGE_WRITE_Y_SHIFT);
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PVR(p)->mx = x;
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PVR(p)->my = y;
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PVR(p)->SubPos = 0;
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PVR(p)->ImageWrite[1] =
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PVR(p)->ImageWrite[2] = (Pos >> 1) |
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GXVA_CMD_IMAGE_WRITE |
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GXVA_IMAGE_WRITE_WIDTH_8 |
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GXVA_IMAGE_WRITE_HGHT_4;
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PVR(p)->ImageWrite[0] = Pos |
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GXVA_CMD_IMAGE_WRITE |
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GXVA_IMAGE_WRITE_WIDTH_16 |
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GXVA_IMAGE_WRITE_HGHT_8;
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PVR(p)->M24VA_WriteMCCmdData(GXVA_CMD_MC_OPP_TYPE|GXVA_MC_TYPE_COL_PLANE_Y);
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}
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static INLINE void IDCT8x8_422(pvr* p,idct_block_t *Block,int Length,const uint8_t* Scan)
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{
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const uint8_t *ScanEnd = Scan + Length;
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int16_t* Data = p->IZZ;
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int v;
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int d;
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for (;;Data+=2)
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{
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do
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{
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if (Scan == ScanEnd) goto end;
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v = *(Scan++);
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d = Block[v];
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} while (!d);
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v <<= 1;
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Data[0] = (int16_t)v;
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Data[1] = (int16_t)d;
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}
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end:
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if (Data == p->IZZ)
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{
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*(int32_t*)Data = 0;
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Data += 2;
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}
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Data[-2] |= 1;
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p->M24VA_WriteIZZBlock((gx_int32*)p->IZZ,(gx_int32*)Data - (gx_int32*)p->IZZ);
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}
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static INLINE void IDCT8x4_422(pvr* p,idct_block_t *Block,int Length,const uint8_t* Scan)
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{
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const uint8_t *ScanEnd = Scan + Length;
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int16_t* Data = p->IZZ;
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int v,w;
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int d;
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for (;;Data+=2)
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{
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do
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{
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skip:
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if (Scan == ScanEnd) goto end;
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w = Scan[64];
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v = *(Scan++);
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if (w>=64) goto skip;
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d = Block[v];
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} while (!d);
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w <<= 1;
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Data[0] = (int16_t)w;
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Data[1] = (int16_t)d;
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}
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end:
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if (Data == p->IZZ)
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{
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*(int32_t*)Data = 0;
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Data += 2;
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}
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Data[-2] |= 1;
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p->M24VA_WriteIZZBlock((gx_int32*)p->IZZ,(gx_int32*)Data - (gx_int32*)p->IZZ);
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}
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int Intra422[4] =
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{
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GXVA_CMD_IDCT_MODE|GXVA_IDCT_MODE_INTRA|GXVA_IDCT_BLK_SIZEX_8|GXVA_IDCT_BLK_SIZEY_8|GXVA_IDCT_MODE_BLK_TOP_LEFT,
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GXVA_CMD_IDCT_MODE|GXVA_IDCT_MODE_INTRA|GXVA_IDCT_BLK_SIZEX_8|GXVA_IDCT_BLK_SIZEY_8|GXVA_IDCT_MODE_BLK_TOP_RGHT,
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GXVA_CMD_IDCT_MODE|GXVA_IDCT_MODE_INTRA|GXVA_IDCT_BLK_SIZEX_8|GXVA_IDCT_BLK_SIZEY_8|GXVA_IDCT_MODE_BLK_TOP_LEFT,
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GXVA_CMD_IDCT_MODE|GXVA_IDCT_MODE_INTRA|GXVA_IDCT_BLK_SIZEX_8|GXVA_IDCT_BLK_SIZEY_8|GXVA_IDCT_MODE_BLK_TOP_LEFT
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};
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void IDCTIntra8x8_422(void* p,idct_block_t *Block,int Length,int ScanType)
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{
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int SubPos = PVR(p)->SubPos++;
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if (SubPos >= 2)
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{
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PVR(p)->M24VA_WriteMCCmdData(
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(SubPos - 1)| // GXVA_MC_TYPE_COL_PLANE_U, GXVA_MC_TYPE_COL_PLANE_V
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GXVA_CMD_MC_OPP_TYPE);
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PVR(p)->M24VA_WriteMCCmdData(Intra422[SubPos]);
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IDCT8x4_422(PVR(p),Block,Length,ScanTable8x4[ScanType]);
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PVR(p)->M24VA_WriteMCCmdData(PVR(p)->ImageWrite[SubPos-1]);
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}
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else
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{
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PVR(p)->M24VA_WriteMCCmdData(Intra422[SubPos]);
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IDCT8x8_422(PVR(p),Block,Length,ScanTable[ScanType]);
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if (SubPos)
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PVR(p)->M24VA_WriteMCCmdData(PVR(p)->ImageWrite[0]);
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}
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}
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