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trunk/xvidcore/src/image/ppc_asm/colorspace_altivec.c revision 1557, Sun Oct 17 10:20:15 2004 UTC branches/release-1_3-branch/xvidcore/src/image/ppc_asm/colorspace_altivec.c revision 1925, Mon Dec 27 16:39:33 2010 UTC
# Line 19  Line 19 
19   *  along with this program ; if not, write to the Free Software   *  along with this program ; if not, write to the Free Software
20   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21   *   *
22   * $Id: colorspace_altivec.c,v 1.2 2004-10-17 10:20:15 edgomez Exp $   * $Id: colorspace_altivec.c,v 1.4 2005-03-18 18:01:34 edgomez Exp $
23   *   *
24   ****************************************************************************/   ****************************************************************************/
25    
# Line 28  Line 28 
28  #endif  #endif
29    
30  #include "../../portab.h"  #include "../../portab.h"
31    #include "../colorspace.h"
32    
33  #undef DEBUG  #undef DEBUG
34  #include <stdio.h>  #include <stdio.h>
# Line 171  Line 172 
172      vector unsigned char y_vec;         \      vector unsigned char y_vec;         \
173      vector unsigned char u_vec;         \      vector unsigned char u_vec;         \
174      vector unsigned char v_vec;         \      vector unsigned char v_vec;         \
175      vector unsigned char p0, p1;        \      vector unsigned char p0, p1, ptmp;  \
176      vector unsigned char mask;          \      vector unsigned char mask;          \
177      vector unsigned char mask_stencil;  \      vector unsigned char mask_stencil;  \
178      vector unsigned char t;             \      vector unsigned char t;             \
# Line 449  Line 450 
450      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C1, (unsigned char*)0));           \      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C1, (unsigned char*)0));           \
451      \      \
452      p0 = vec_sel(p0, vec_perm(t, t, m4), mask);                   \      p0 = vec_sel(p0, vec_perm(t, t, m4), mask);                   \
453      p1 = vec_sel(p1, vec_perm(t, t, vec_add(m4, vec4)), mask);    \          ptmp = vec_perm(t,t, vec_add(m4, vec4));\
454        p1 = vec_sel(p1, ptmp, mask);    \
455      \      \
456      /* C3 */ \      /* C3 */ \
457      t = vec_perm(y_vec, y_vec, vec_add(vec_sl(vec_lvsl(0, (unsigned char*)0), vec_splat_u8(1)), vec_splat_u8(1))); \          ptmp = vec_add(vec_sl(vec_lvsl(0, (unsigned char*)0), vec_splat_u8(1)), vec_splat_u8(1));       \
458        t = vec_perm(y_vec, y_vec, ptmp); \
459      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C3, (unsigned char*)0));                                   \      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C3, (unsigned char*)0));                                   \
460      \      \
461      p0 = vec_sel(p0, vec_perm(t, t, m4), mask);                   \      p0 = vec_sel(p0, vec_perm(t, t, m4), mask);                   \
462      p1 = vec_sel(p1, vec_perm(t, t, vec_add(m4, vec4)), mask);    \          ptmp = vec_perm(t, t, vec_add(m4, vec4));       \
463        p1 = vec_sel(p1, ptmp, mask);    \
464      \      \
465      /* C2 */ \      /* C2 */ \
466      u_vec = vec_perm(vec_ld(0,u_ptr), vec_ld(16, u_ptr), vec_lvsl(0, u_ptr));       \      u_vec = vec_perm(vec_ld(0,u_ptr), vec_ld(16, u_ptr), vec_lvsl(0, u_ptr));       \
467      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C2, (unsigned char*)0));   \      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C2, (unsigned char*)0));   \
468      \      \
469      p0 = vec_sel(p0, vec_perm(u_vec, u_vec, m4), mask);                 \      p0 = vec_sel(p0, vec_perm(u_vec, u_vec, m4), mask);                 \
470      p1 = vec_sel(p1, vec_perm(u_vec, u_vec, vec_add(m4, vec4)), mask);  \          ptmp = vec_perm(u_vec, u_vec, vec_add(m4, vec4)); \
471        p1 = vec_sel(p1, ptmp, mask);  \
472      \      \
473      /* C4 */ \      /* C4 */ \
474      v_vec = vec_perm(vec_ld(0, v_ptr), vec_ld(16, v_ptr), vec_lvsl(0, v_ptr));      \      v_vec = vec_perm(vec_ld(0, v_ptr), vec_ld(16, v_ptr), vec_lvsl(0, v_ptr));      \
475      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C4, (unsigned char*)0));   \      mask = vec_perm(mask_stencil, mask_stencil, vec_lvsr(C4, (unsigned char*)0));   \
476      \      \
477      p0 = vec_sel(p0, vec_perm(v_vec, v_vec, m4), mask);                 \      p0 = vec_sel(p0, vec_perm(v_vec, v_vec, m4), mask);                 \
478      p1 = vec_sel(p1, vec_perm(v_vec, v_vec, vec_add(m4, vec4)), mask);  \          ptmp = vec_perm(v_vec, v_vec, vec_add(m4, vec4));       \
479        p1 = vec_sel(p1, ptmp, mask);  \
480      \      \
481      vec_st(p0, 0, x_ptr + (ROW)*x_stride);   \      vec_st(p0, 0, x_ptr + (ROW)*x_stride);   \
482      vec_st(p1, 16, x_ptr + (ROW)*x_stride)      vec_st(p1, 16, x_ptr + (ROW)*x_stride)
# Line 488  Line 494 
494          WRITE_YUYV_ALTIVEC(1, 0, C1,C2,C3,C4)          WRITE_YUYV_ALTIVEC(1, 0, C1,C2,C3,C4)
495    
496    
497  MAKE_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_yuyv_altivec_c, 2, 16, 2, YV12_TO_YUYV_ALTIVEC, 0, 1, 2, 3)  MAKE_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_yuyv_altivec_unaligned_c, 2, 16, 2, YV12_TO_YUYV_ALTIVEC, 0, 1, 2, 3)
498  MAKE_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_uyvy_altivec_c, 2, 16, 2, YV12_TO_YUYV_ALTIVEC, 1, 0, 3, 2)  MAKE_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_uyvy_altivec_unaligned_c, 2, 16, 2, YV12_TO_YUYV_ALTIVEC, 1, 0, 3, 2)
499    
500    
501    /* This intermediate functions are used because gcc v3.3 seems to produces an invalid register usage with the fallback directly integrated in the altivec routine (!!!) */
502    
503    #define CHECK_COLORSPACE_ALTIVEC_TO_YUV(NAME,FAST,FALLBACK) \
504    void \
505    NAME(uint8_t *x_ptr, int x_stride,  \
506                                    uint8_t *y_ptr, uint8_t *u_ptr, uint8_t *v_ptr, \
507                                    int y_stride, int uv_stride,    \
508                                    int width, int height, int vflip)   \
509    {\
510            if( ((uint32_t)x_ptr & 15) | (x_stride & 15) )\
511                    FALLBACK(x_ptr, x_stride, y_ptr, u_ptr, v_ptr, y_stride, uv_stride, width, height, vflip);\
512            else\
513                    FAST(x_ptr, x_stride, y_ptr, u_ptr, v_ptr, y_stride, uv_stride, width, height, vflip);\
514    }
515    
516    CHECK_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_yuyv_altivec_c, yv12_to_yuyv_altivec_unaligned_c, yv12_to_yuyv_c)
517    CHECK_COLORSPACE_ALTIVEC_TO_YUV(yv12_to_uyvy_altivec_c, yv12_to_uyvy_altivec_unaligned_c, yv12_to_uyvy_c)
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