diff options
author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-06-14 14:47:55 +0400 |
---|---|---|
committer | Mans Rullgard <mans@mansr.com> | 2012-06-18 02:20:10 +0400 |
commit | d9669eab0b8709f66d0872671511cb9487ea2651 (patch) | |
tree | e5bfe25fa298d33761ef5e4ee6a01f9198bcaed6 | |
parent | 8e50c57dcb481479f2fd46f9bdb6a9776b0d9fa6 (diff) |
dwt: remove variable-length arrays
Signed-off-by: Mans Rullgard <mans@mansr.com>
-rw-r--r-- | libavcodec/dwt.c | 109 | ||||
-rw-r--r-- | libavcodec/dwt.h | 18 | ||||
-rw-r--r-- | libavcodec/snow.c | 4 | ||||
-rw-r--r-- | libavcodec/snow.h | 2 | ||||
-rw-r--r-- | libavcodec/snowdec.c | 2 | ||||
-rw-r--r-- | libavcodec/snowenc.c | 12 | ||||
-rw-r--r-- | libavcodec/x86/snowdsp_mmx.c | 6 |
7 files changed, 79 insertions, 74 deletions
diff --git a/libavcodec/dwt.c b/libavcodec/dwt.c index d3d4f3b545..56e4a572ea 100644 --- a/libavcodec/dwt.c +++ b/libavcodec/dwt.c @@ -243,9 +243,8 @@ static av_always_inline void inv_liftS(IDWTELEM *dst, IDWTELEM *src, } #endif /* ! liftS */ -static void horizontal_decompose53i(DWTELEM *b, int width) +static void horizontal_decompose53i(DWTELEM *b, DWTELEM *temp, int width) { - DWTELEM temp[width]; const int width2 = width >> 1; int x; const int w2 = (width + 1) >> 1; @@ -311,8 +310,8 @@ static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, b1[i] += (b0[i] + b2[i] + 2) >> 2; } -static void spatial_decompose53i(DWTELEM *buffer, int width, int height, - int stride) +static void spatial_decompose53i(DWTELEM *buffer, DWTELEM *temp, + int width, int height, int stride) { int y; DWTELEM *b0 = buffer + mirror(-2 - 1, height - 1) * stride; @@ -323,9 +322,9 @@ static void spatial_decompose53i(DWTELEM *buffer, int width, int height, DWTELEM *b3 = buffer + mirror(y + 2, height - 1) * stride; if (y + 1 < (unsigned)height) - horizontal_decompose53i(b2, width); + horizontal_decompose53i(b2, temp, width); if (y + 2 < (unsigned)height) - horizontal_decompose53i(b3, width); + horizontal_decompose53i(b3, temp, width); if (y + 1 < (unsigned)height) vertical_decompose53iH0(b1, b2, b3, width); @@ -337,9 +336,8 @@ static void spatial_decompose53i(DWTELEM *buffer, int width, int height, } } -static void horizontal_decompose97i(DWTELEM *b, int width) +static void horizontal_decompose97i(DWTELEM *b, DWTELEM *temp, int width) { - DWTELEM temp[width]; const int w2 = (width + 1) >> 1; lift(temp + w2, b + 1, b, 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1); @@ -389,8 +387,8 @@ static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, b1[i] += (W_DM * (b0[i] + b2[i]) + W_DO) >> W_DS; } -static void spatial_decompose97i(DWTELEM *buffer, int width, int height, - int stride) +static void spatial_decompose97i(DWTELEM *buffer, DWTELEM *temp, + int width, int height, int stride) { int y; DWTELEM *b0 = buffer + mirror(-4 - 1, height - 1) * stride; @@ -403,9 +401,9 @@ static void spatial_decompose97i(DWTELEM *buffer, int width, int height, DWTELEM *b5 = buffer + mirror(y + 4, height - 1) * stride; if (y + 3 < (unsigned)height) - horizontal_decompose97i(b4, width); + horizontal_decompose97i(b4, temp, width); if (y + 4 < (unsigned)height) - horizontal_decompose97i(b5, width); + horizontal_decompose97i(b5, temp, width); if (y + 3 < (unsigned)height) vertical_decompose97iH0(b3, b4, b5, width); @@ -423,20 +421,20 @@ static void spatial_decompose97i(DWTELEM *buffer, int width, int height, } } -void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, - int type, int decomposition_count) +void ff_spatial_dwt(DWTELEM *buffer, DWTELEM *temp, int width, int height, + int stride, int type, int decomposition_count) { int level; for (level = 0; level < decomposition_count; level++) { switch (type) { case DWT_97: - spatial_decompose97i(buffer, + spatial_decompose97i(buffer, temp, width >> level, height >> level, stride << level); break; case DWT_53: - spatial_decompose53i(buffer, + spatial_decompose53i(buffer, temp, width >> level, height >> level, stride << level); break; @@ -444,9 +442,8 @@ void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, } } -static void horizontal_compose53i(IDWTELEM *b, int width) +static void horizontal_compose53i(IDWTELEM *b, IDWTELEM *temp, int width) { - IDWTELEM temp[width]; const int width2 = width >> 1; const int w2 = (width + 1) >> 1; int x; @@ -506,6 +503,7 @@ static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer, } static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer *sb, + IDWTELEM *temp, int width, int height, int stride_line) { @@ -535,17 +533,18 @@ static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer *sb, } if (y - 1 < (unsigned)height) - horizontal_compose53i(b0, width); + horizontal_compose53i(b0, temp, width); if (y + 0 < (unsigned)height) - horizontal_compose53i(b1, width); + horizontal_compose53i(b1, temp, width); cs->b0 = b2; cs->b1 = b3; cs->y += 2; } -static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, - int height, int stride) +static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, + IDWTELEM *temp, int width, int height, + int stride) { int y = cs->y; IDWTELEM *b0 = cs->b0; @@ -559,27 +558,26 @@ static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, vertical_compose53iH0(b0, b1, b2, width); if (y - 1 < (unsigned)height) - horizontal_compose53i(b0, width); + horizontal_compose53i(b0, temp, width); if (y + 0 < (unsigned)height) - horizontal_compose53i(b1, width); + horizontal_compose53i(b1, temp, width); cs->b0 = b2; cs->b1 = b3; cs->y += 2; } -static void av_unused spatial_compose53i(IDWTELEM *buffer, int width, - int height, int stride) +static void av_unused spatial_compose53i(IDWTELEM *buffer, IDWTELEM *temp, + int width, int height, int stride) { DWTCompose cs; spatial_compose53i_init(&cs, buffer, height, stride); while (cs.y <= height) - spatial_compose53i_dy(&cs, buffer, width, height, stride); + spatial_compose53i_dy(&cs, buffer, temp, width, height, stride); } -void ff_snow_horizontal_compose97i(IDWTELEM *b, int width) +void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width) { - IDWTELEM temp[width]; const int w2 = (width + 1) >> 1; #if 0 //maybe more understadable but slower @@ -693,8 +691,9 @@ static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height } static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs, - slice_buffer *sb, int width, - int height, int stride_line) + slice_buffer * sb, IDWTELEM *temp, + int width, int height, + int stride_line) { int y = cs->y; @@ -723,9 +722,9 @@ static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs, } if (y - 1 < (unsigned)height) - dsp->horizontal_compose97i(b0, width); + dsp->horizontal_compose97i(b0, temp, width); if (y + 0 < (unsigned)height) - dsp->horizontal_compose97i(b1, width); + dsp->horizontal_compose97i(b1, temp, width); cs->b0 = b2; cs->b1 = b3; @@ -734,8 +733,9 @@ static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs, cs->y += 2; } -static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, - int height, int stride) +static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, + IDWTELEM *temp, int width, int height, + int stride) { int y = cs->y; IDWTELEM *b0 = cs->b0; @@ -755,9 +755,9 @@ static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, vertical_compose97iH0(b0, b1, b2, width); if (y - 1 < (unsigned)height) - ff_snow_horizontal_compose97i(b0, width); + ff_snow_horizontal_compose97i(b0, temp, width); if (y + 0 < (unsigned)height) - ff_snow_horizontal_compose97i(b1, width); + ff_snow_horizontal_compose97i(b1, temp, width); cs->b0 = b2; cs->b1 = b3; @@ -766,13 +766,13 @@ static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, cs->y += 2; } -static void av_unused spatial_compose97i(IDWTELEM *buffer, int width, - int height, int stride) +static void av_unused spatial_compose97i(IDWTELEM *buffer, IDWTELEM *temp, + int width, int height, int stride) { DWTCompose cs; spatial_compose97i_init(&cs, buffer, height, stride); while (cs.y <= height) - spatial_compose97i_dy(&cs, buffer, width, height, stride); + spatial_compose97i_dy(&cs, buffer, temp, width, height, stride); } void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, @@ -795,9 +795,9 @@ void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, } void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs, - slice_buffer *slice_buf, int width, - int height, int stride_line, int type, - int decomposition_count, int y) + slice_buffer *slice_buf, IDWTELEM *temp, + int width, int height, int stride_line, + int type, int decomposition_count, int y) { const int support = type == 1 ? 3 : 5; int level; @@ -808,13 +808,13 @@ void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs, while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) { switch (type) { case DWT_97: - spatial_compose97i_dy_buffered(dsp, cs + level, slice_buf, + spatial_compose97i_dy_buffered(dsp, cs + level, slice_buf, temp, width >> level, height >> level, stride_line << level); break; case DWT_53: - spatial_compose53i_dy_buffered(cs + level, slice_buf, + spatial_compose53i_dy_buffered(cs + level, slice_buf, temp, width >> level, height >> level, stride_line << level); @@ -842,8 +842,9 @@ static void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, } } -static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, - int height, int stride, int type, +static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, + IDWTELEM *temp, int width, int height, + int stride, int type, int decomposition_count, int y) { const int support = type == 1 ? 3 : 5; @@ -855,26 +856,26 @@ static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) { switch (type) { case DWT_97: - spatial_compose97i_dy(cs + level, buffer, width >> level, + spatial_compose97i_dy(cs + level, buffer, temp, width >> level, height >> level, stride << level); break; case DWT_53: - spatial_compose53i_dy(cs + level, buffer, width >> level, + spatial_compose53i_dy(cs + level, buffer, temp, width >> level, height >> level, stride << level); break; } } } -void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, - int type, int decomposition_count) +void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height, + int stride, int type, int decomposition_count) { DWTCompose cs[MAX_DECOMPOSITIONS]; int y; ff_spatial_idwt_init(cs, buffer, width, height, stride, type, decomposition_count); for (y = 0; y < height; y += 4) - ff_spatial_idwt_slice(cs, buffer, width, height, stride, type, + ff_spatial_idwt_slice(cs, buffer, temp, width, height, stride, type, decomposition_count, y); } @@ -883,7 +884,7 @@ static inline int w_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, { int s, i, j; const int dec_count = w == 8 ? 3 : 4; - int tmp[32 * 32]; + int tmp[32 * 32], tmp2[32]; int level, ori; static const int scale[2][2][4][4] = { { @@ -925,7 +926,7 @@ static inline int w_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, pix2 += line_size; } - ff_spatial_dwt(tmp, w, h, 32, type, dec_count); + ff_spatial_dwt(tmp, tmp2, w, h, 32, type, dec_count); s = 0; assert(w == h); diff --git a/libavcodec/dwt.h b/libavcodec/dwt.h index 9229928f33..771a9bf53e 100644 --- a/libavcodec/dwt.h +++ b/libavcodec/dwt.h @@ -50,7 +50,7 @@ typedef struct DWTContext { void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); - void (*horizontal_compose97i)(IDWTELEM *b, int width); + void (*horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width); void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, @@ -148,7 +148,7 @@ IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line); void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); -void ff_snow_horizontal_compose97i(IDWTELEM *b, int width); +void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width); void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, @@ -157,18 +157,18 @@ void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, int ff_w53_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h); int ff_w97_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h); -void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, - int decomposition_count); +void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride, + int type, int decomposition_count); void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line, int type, int decomposition_count); void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs, - slice_buffer *slice_buf, int width, - int height, int stride_line, int type, - int decomposition_count, int y); -void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, - int type, int decomposition_count); + slice_buffer *slice_buf, IDWTELEM *temp, + int width, int height, int stride_line, + int type, int decomposition_count, int y); +void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height, + int stride, int type, int decomposition_count); void ff_dwt_init(DWTContext *c); void ff_dwt_init_x86(DWTContext *c); diff --git a/libavcodec/snow.c b/libavcodec/snow.c index 384cda82ac..edd7d075e4 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -440,6 +440,8 @@ av_cold int ff_snow_common_init(AVCodecContext *avctx){ s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM)); s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here + s->temp_dwt_buffer = av_mallocz(width * sizeof(DWTELEM)); + s->temp_idwt_buffer = av_mallocz(width * sizeof(IDWTELEM)); for(i=0; i<MAX_REF_FRAMES; i++) for(j=0; j<MAX_REF_FRAMES; j++) @@ -618,7 +620,9 @@ av_cold void ff_snow_common_end(SnowContext *s) int plane_index, level, orientation, i; av_freep(&s->spatial_dwt_buffer); + av_freep(&s->temp_dwt_buffer); av_freep(&s->spatial_idwt_buffer); + av_freep(&s->temp_idwt_buffer); s->m.me.temp= NULL; av_freep(&s->m.me.scratchpad); diff --git a/libavcodec/snow.h b/libavcodec/snow.h index 5edb8f8af6..3ceb6af99d 100644 --- a/libavcodec/snow.h +++ b/libavcodec/snow.h @@ -132,7 +132,9 @@ typedef struct SnowContext{ int16_t (*ref_mvs[MAX_REF_FRAMES])[2]; uint32_t *ref_scores[MAX_REF_FRAMES]; DWTELEM *spatial_dwt_buffer; + DWTELEM *temp_dwt_buffer; IDWTELEM *spatial_idwt_buffer; + IDWTELEM *temp_idwt_buffer; int colorspace_type; int chroma_h_shift; int chroma_v_shift; diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c index 62ef5f11f4..5dec277eb0 100644 --- a/libavcodec/snowdec.c +++ b/libavcodec/snowdec.c @@ -502,7 +502,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac } for(; yd<slice_h; yd+=4){ - ff_spatial_idwt_buffered_slice(&s->dwt, cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd); + ff_spatial_idwt_buffered_slice(&s->dwt, cs, &s->sb, s->temp_idwt_buffer, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd); } if(s->qlog == LOSSLESS_QLOG){ diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c index 7b010e1f1c..7e3b68fb8a 100644 --- a/libavcodec/snowenc.c +++ b/libavcodec/snowenc.c @@ -93,7 +93,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i //FIXME pass the copy cleanly ? // memcpy(dwt_buffer, buffer, height * stride * sizeof(DWTELEM)); - ff_spatial_dwt(buffer, width, height, stride, type, s->spatial_decomposition_count); + ff_spatial_dwt(buffer, s->temp_dwt_buffer, width, height, stride, type, s->spatial_decomposition_count); for(level=0; level<s->spatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ @@ -118,7 +118,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i for(xs= 0; xs<Q2_STEP; xs++){ memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); dequantize_all(s, p, idwt2_buffer, width, height); - ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); + ff_spatial_idwt(idwt2_buffer, s->temp_idwt_buffer, width, height, stride, type, s->spatial_decomposition_count); find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); for(y=ys; y<b->height; y+= Q2_STEP){ @@ -129,7 +129,7 @@ static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, i } } dequantize_all(s, p, idwt2_buffer, width, height); - ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); + ff_spatial_idwt(idwt2_buffer, s->temp_idwt_buffer, width, height, stride, type, s->spatial_decomposition_count); find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); for(y=ys; y<b->height; y+= Q2_STEP){ for(x=xs; x<b->width; x+= Q2_STEP){ @@ -1586,7 +1586,7 @@ static void calculate_visual_weight(SnowContext *s, Plane *p){ memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height); ibuf[b->width/2 + b->height/2*b->stride]= 256*16; - ff_spatial_idwt(s->spatial_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count); + ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count); for(y=0; y<height; y++){ for(x=0; x<width; x++){ int64_t d= s->spatial_idwt_buffer[x + y*width]*16; @@ -1775,7 +1775,7 @@ redo_frame: /* if(QUANTIZE2) dwt_quantize(s, p, s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type); else*/ - ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); + ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); if(s->pass1_rc && plane_index==0){ int delta_qlog = ratecontrol_1pass(s, pic); @@ -1814,7 +1814,7 @@ redo_frame: } } - ff_spatial_idwt(s->spatial_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); + ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); if(s->qlog == LOSSLESS_QLOG){ for(y=0; y<h; y++){ for(x=0; x<w; x++){ diff --git a/libavcodec/x86/snowdsp_mmx.c b/libavcodec/x86/snowdsp_mmx.c index 00b62616cb..729a13a4ce 100644 --- a/libavcodec/x86/snowdsp_mmx.c +++ b/libavcodec/x86/snowdsp_mmx.c @@ -26,9 +26,8 @@ #include "libavcodec/dwt.h" #include "dsputil_mmx.h" -static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){ +static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, IDWTELEM *temp, int width){ const int w2= (width+1)>>1; - DECLARE_ALIGNED(16, IDWTELEM, temp)[width>>1]; const int w_l= (width>>1); const int w_r= w2 - 1; int i; @@ -215,9 +214,8 @@ static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){ } } -static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, int width){ +static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, IDWTELEM *temp, int width){ const int w2= (width+1)>>1; - IDWTELEM temp[width >> 1]; const int w_l= (width>>1); const int w_r= w2 - 1; int i; |