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mpeg2dec in mpegplayer: Do a little code slashing and organizing. Much more to come I think.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13159 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2007-04-14 16:35:44 +00:00
parent 32bd59d4f7
commit f4b5a723b0
14 changed files with 273 additions and 866 deletions
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131
apps/plugins/mpegplayer/motion_comp.c
View file

@ -29,108 +29,33 @@
#include "attributes.h"
#include "mpeg2_internal.h"
mpeg2_mc_t mpeg2_mc;
/* These are defined in their respective target files - motion_comp_X.c */
extern mpeg2_mc_fct MC_put_o_16;
extern mpeg2_mc_fct MC_put_o_8;
extern mpeg2_mc_fct MC_put_x_16;
extern mpeg2_mc_fct MC_put_x_8;
extern mpeg2_mc_fct MC_put_y_16;
extern mpeg2_mc_fct MC_put_y_8;
extern mpeg2_mc_fct MC_put_xy_16;
extern mpeg2_mc_fct MC_put_xy_8;
void mpeg2_mc_init (uint32_t accel)
extern mpeg2_mc_fct MC_avg_o_16;
extern mpeg2_mc_fct MC_avg_o_8;
extern mpeg2_mc_fct MC_avg_x_16;
extern mpeg2_mc_fct MC_avg_x_8;
extern mpeg2_mc_fct MC_avg_y_16;
extern mpeg2_mc_fct MC_avg_y_8;
extern mpeg2_mc_fct MC_avg_xy_16;
extern mpeg2_mc_fct MC_avg_xy_8;
mpeg2_mc_t mpeg2_mc =
{
(void)accel;
#ifdef ARCH_X86
if (accel & MPEG2_ACCEL_X86_MMXEXT)
mpeg2_mc = mpeg2_mc_mmxext;
else if (accel & MPEG2_ACCEL_X86_3DNOW)
mpeg2_mc = mpeg2_mc_3dnow;
else if (accel & MPEG2_ACCEL_X86_MMX)
mpeg2_mc = mpeg2_mc_mmx;
else
#endif
#ifdef ARCH_PPC
if (accel & MPEG2_ACCEL_PPC_ALTIVEC)
mpeg2_mc = mpeg2_mc_altivec;
else
#endif
#ifdef ARCH_ALPHA
if (accel & MPEG2_ACCEL_ALPHA)
mpeg2_mc = mpeg2_mc_alpha;
else
#endif
#ifdef ARCH_SPARC
if (accel & MPEG2_ACCEL_SPARC_VIS)
mpeg2_mc = mpeg2_mc_vis;
else
#endif
#ifdef CPU_ARM
mpeg2_mc = mpeg2_mc_arm;
#else
mpeg2_mc = mpeg2_mc_c;
#endif
}
#define avg2(a,b) ((a+b+1)>>1)
#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
#define predict_o(i) (ref[i])
#define predict_x(i) (avg2 (ref[i], ref[i+1]))
#define predict_y(i) (avg2 (ref[i], (ref+stride)[i]))
#define predict_xy(i) (avg4 (ref[i], ref[i+1], \
(ref+stride)[i], (ref+stride)[i+1]))
#define put(predictor,i) dest[i] = predictor (i)
#define avg(predictor,i) dest[i] = avg2 (predictor (i), dest[i])
/* mc function template */
#define MC_FUNC(op,xy) \
static void MC_##op##_##xy##_16_c (uint8_t * dest, const uint8_t * ref, \
const int stride, int height) \
{ \
do { \
op (predict_##xy, 0); \
op (predict_##xy, 1); \
op (predict_##xy, 2); \
op (predict_##xy, 3); \
op (predict_##xy, 4); \
op (predict_##xy, 5); \
op (predict_##xy, 6); \
op (predict_##xy, 7); \
op (predict_##xy, 8); \
op (predict_##xy, 9); \
op (predict_##xy, 10); \
op (predict_##xy, 11); \
op (predict_##xy, 12); \
op (predict_##xy, 13); \
op (predict_##xy, 14); \
op (predict_##xy, 15); \
ref += stride; \
dest += stride; \
} while (--height); \
} \
static void MC_##op##_##xy##_8_c (uint8_t * dest, const uint8_t * ref, \
const int stride, int height) \
{ \
do { \
op (predict_##xy, 0); \
op (predict_##xy, 1); \
op (predict_##xy, 2); \
op (predict_##xy, 3); \
op (predict_##xy, 4); \
op (predict_##xy, 5); \
op (predict_##xy, 6); \
op (predict_##xy, 7); \
ref += stride; \
dest += stride; \
} while (--height); \
}
/* definitions of the actual mc functions */
MC_FUNC (put,o)
MC_FUNC (avg,o)
MC_FUNC (put,x)
MC_FUNC (avg,x)
MC_FUNC (put,y)
MC_FUNC (avg,y)
MC_FUNC (put,xy)
MC_FUNC (avg,xy)
MPEG2_MC_EXTERN (c)
{
MC_put_o_16, MC_put_x_16, MC_put_y_16, MC_put_xy_16,
MC_put_o_8, MC_put_x_8, MC_put_y_8, MC_put_xy_8
},
{
MC_avg_o_16, MC_avg_x_16, MC_avg_y_16, MC_avg_xy_16,
MC_avg_o_8, MC_avg_x_8, MC_avg_y_8, MC_avg_xy_8
}
};