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-rw-r--r--system/pdp_llconv.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/system/pdp_llconv.c b/system/pdp_llconv.c
deleted file mode 100644
index 93d2934..0000000
--- a/system/pdp_llconv.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Pure Data Packet system implementation. : low level format conversion code
- * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-/* this file contains low level image conversion code
- nominated as "the ugliest part of pdp"
- some code is mmx, most is not. */
-
-#include "pdp_llconv.h"
-#include "pdp_mmx.h"
-
-
-/* all symbols are C style */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-
-#define CLAMP(x) (((x)<0) ? 0 : ((x>255)? 255 : (x)))
-#define CLAMP16(x) (((x)<-0x7fff) ? -0x7fff : ((x>0x7fff) ? 0x7fff : (x)))
-#define FP(x) ((int)(((float)(x)) * 256.0f))
-
-
-/* some prototypes for functions defined elsewhere */
-void llconv_yvu_planar_s16u8(short int *src, unsigned char *dst, unsigned int nbpixels);
-void llconv_yuv_planar_u8s16(unsigned char* source, short int *dest, int nbpixels);
-void llconv_grey_s16u8(short int *src, unsigned char *dst, unsigned int nbpixels);
-void llconv_yvu_planar_u8s16(unsigned char* source, short int *dest, int nbpixels);
-
-
-static inline int rgb2y(int r, int g, int b){return (FP(0.257) * r) + (FP(0.504) * g) + (FP(0.098) * b) + FP(16);}
-static inline int rgb2v(int r, int g, int b){return (FP(0.439) * r) - (FP(0.368) * g) - (FP(0.071) * b) + FP(128);}
-static inline int rgb2u(int r, int g, int b){return -(FP(0.148) * r) - (FP(0.291) * g) + (FP(0.439) * b) + FP(128);}
-
-
-/* "standard" 8 bit conversion routine */
-static void llconv_rgb2yvu(unsigned char* src, unsigned char* dst, int nbpixels)
-{
- int r,g,b,y,v,u,i;
- for (i=0; i<nbpixels; i++){
- r = src[0];
- g = src[1];
- b = src[2];
-
- y = rgb2y(r,g,b);
- v = rgb2v(r,g,b);
- u = rgb2u(r,g,b);
-
- dst[0] = CLAMP(y>>8);
- dst[1] = CLAMP(v>>8);
- dst[2] = CLAMP(u>>8);
-
- src += 3;
- dst += 3;
- }
-}
-
-
-
-/* 8 bit rgb to 16 bit planar subsampled yvu */
-static void llconv_rgb2yvu_planar16sub(unsigned char* src, short int* dst, int w, int h)
-{
- int r,g,b,y,v,u,i,j,k;
- int size = w*h;
-
- int voffset = size;
- int uoffset = size + (size>>2);
-
-
- int loffset = w * 3;
-
- k=0;
- for (j=0; j<w*h; j+=(w<<1)){
- k = 3 * j;
- for (i=0; i<w; i+=2){
-
-
- // well, this seems to work... strange though
- b = src[k];
- g = src[k+1];
- r = src[k+2];
-
- y = (FP(0.257) * r) + (FP(0.504) * g) + (FP(0.098) * b) + FP(16);
- v = (FP(0.439) * r) - (FP(0.368) * g) - (FP(0.071) * b);
- u = -(FP(0.148) * r) - (FP(0.291) * g) + (FP(0.439) * b);
-
- dst[i+j] = CLAMP16(y >> 1);
-
- b = src[k+3];
- g = src[k+4];
- r = src[k+5];
-
- y = (FP(0.257) * r) + (FP(0.504) * g) + (FP(0.098) * b) + FP(16);
- v += (FP(0.439) * r) - (FP(0.368) * g) - (FP(0.071) * b);
- u += -(FP(0.148) * r) - (FP(0.291) * g) + (FP(0.439) * b);
-
- dst[i+j+1] = CLAMP16(y >> 1);
-
-
-
- b = src[loffset + k];
- g = src[loffset + k+1];
- r = src[loffset + k+2];
-
- y = (FP(0.257) * r) + (FP(0.504) * g) + (FP(0.098) * b) + FP(16);
- v = (FP(0.439) * r) - (FP(0.368) * g) - (FP(0.071) * b);
- u = -(FP(0.148) * r) - (FP(0.291) * g) + (FP(0.439) * b);
-
- dst[w+i+j] = CLAMP16(y >> 1);
-
- b = src[loffset + k+3];
- g = src[loffset + k+4];
- r = src[loffset + k+5];
-
- k += 6;
-
- y = (FP(0.257) * r) + (FP(0.504) * g) + (FP(0.098) * b) + FP(16);
- v += (FP(0.439) * r) - (FP(0.368) * g) - (FP(0.071) * b);
- u += -(FP(0.148) * r) - (FP(0.291) * g) + (FP(0.439) * b);
-
- dst[w+i+j+1] = CLAMP16(y >> 1);
-
- dst[uoffset+ (i>>1) + (j>>2)] = (CLAMP16(u >> 1));
- dst[voffset+ (i>>1) + (j>>2)] = (CLAMP16(v >> 1));
- }
- }
-}
-
-/* these seem to be pretty slow */
-
-static void llconv_yvu2rgb(unsigned char* src, unsigned char* dst, int nbpixels)
-{
- int r,g,b,y,v,u,i;
- for (i=0; i<nbpixels; i++){
- y = src[0];
- v = src[1];
- u = src[2];
-
-
- b = FP(1.164) * (y - 16) + FP(2.018) * (u - 128);
- g = FP(1.164) * (y - 16) - FP(0.813) * (v - 128) - FP(0.391) * (u - 128);
- r = FP(1.164) * (y - 16) + FP(1.596) * (v - 128);
-
- dst[0] = CLAMP(r>>8);
- dst[1] = CLAMP(g>>8);
- dst[2] = CLAMP(b>>8);
-
- src += 3;
- dst += 3;
- }
-}
-
-
-
-/* convert yvu to yuyv */
-static void llconv_yvu2yuyv(unsigned char *src, unsigned char *dst, unsigned int nbpixels)
-{
- unsigned int y1, y2, u, v, i;
-
- for (i = 0; i < nbpixels/2; i++){
-
- y1 = src[0];
- y2 = src[3];
- v = (src[1] + src[4]) >> 1;
- u = (src[2] + src[5]) >> 1;
- dst[0] = y1;
- dst[1] = u;
- dst[2] = y2;
- dst[3] = v;
-
- src += 6;
- dst += 4;
-
- }
-
-}
-
-
-
-/* convert yuvu packed 8 bit unsigned to yv12 planar 16bit signed */
-static void llconv_yuyv_packed_u8s16(unsigned char* ucsource, short int *sidest, unsigned int w, unsigned int h)
-{
- unsigned int i, j;
- unsigned int *source = (unsigned int *)ucsource;
-
- unsigned int *dest = (unsigned int *)sidest;
- unsigned int uoffset = (w*h)>>1;
- unsigned int voffset = (w*h + ((w*h) >> 2)) >> 1;
-
- for(j=0; j < (h*w)>>1; j +=(w)){
- for(i=0; i< (w>>1); i+=2){
- unsigned int y,u,v;
- unsigned int v00, v01, v10, v11;
- v00 = source[i+j];
- v01 = source[i+j+1];
- v10 = source[i+j+(w>>1)];
- v11 = source[i+j+(w>>1)+1];
-
- // save luma
- dest[i+j] = ((v00 & 0x00ff00ff) << 7);
- dest[i+j+1] = ((v01 & 0x00ff00ff) << 7);
- dest[i+j+(w>>1)] = ((v10 & 0x00ff00ff) << 7);
- dest[i+j+(w>>1)+1] = ((v11 & 0x00ff00ff) << 7);
-
- // compute chroma
-
- // mask out luma & shift right
- v00 = (v00 & 0xff00ff00)>>1;
- v01 = (v01 & 0xff00ff00)>>1;
- v10 = (v10 & 0xff00ff00)>>1;
- v11 = (v11 & 0xff00ff00)>>1;
-
- // average 2 scan lines
- v00 += v10;
- v01 += v11;
-
- // combine
- v = (v01 << 16) | (v00 & 0x0000ffff);
- u = (v01 & 0xffff0000) | (v00 >> 16);
-
- // flip sign bits for u,v
- u ^= 0x80008000;
- v ^= 0x80008000;
-
- // save chroma
- dest[uoffset + (i>>1) + (j>>2)] = u;
- dest[voffset + (i>>1) + (j>>2)] = v;
- }
- }
-
-
-}
-
-#define CONVERT(x,y) ((x) + ((y)<<16))
-
-void pdp_llconv(void *src, int stype, void *dst, int dtype, int w, int h)
-{
- int conversion = CONVERT(stype, dtype);
- void *tmpbuf;
-
- switch(CONVERT(stype, dtype)){
-
- case CONVERT( RIF_YVU__P411_U8, RIF_YVU__P411_S16 ):
- llconv_yvu_planar_u8s16((unsigned char*)src, (short int *)dst, w*h);
- break;
-
- case CONVERT( RIF_YUV__P411_U8, RIF_YVU__P411_S16 ):
- llconv_yuv_planar_u8s16((unsigned char*)src, (short int *)dst, w*h);
- break;
-
- case CONVERT( RIF_YUYV_P____U8, RIF_YVU__P411_S16 ):
- llconv_yuyv_packed_u8s16((unsigned char*)src, (short int *)dst, w, h);
- break;
-
- case CONVERT( RIF_RGB__P____U8, RIF_YVU__P411_S16 ):
- llconv_rgb2yvu_planar16sub((unsigned char*) src, (short int*) dst, w, h);
- break;
-
- case CONVERT( RIF_YVU__P411_S16, RIF_YVU__P411_U8 ):
- llconv_yvu_planar_s16u8((short int*)src, (unsigned char*)dst, w*h);
- break;
-
- case CONVERT( RIF_GREY______S16, RIF_GREY______U8 ):
- llconv_grey_s16u8((short int*)src, (unsigned char*)dst, w*h);
- break;
- default:
- post("pdp_llconv: WARNING: no conversion routine defined for (%d)->(%d)", stype, dtype);
-
- }
-
-}
-
-
-#ifdef __cplusplus
-}
-#endif
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