mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-01-08 11:44:44 +00:00
idct_dc for VC-1/WMV3 decoder; ~11% faster decoding overall.
Includes mmx2 asm for the various functions. Note that the actual idct still does not have an x86 SIMD implemtation. For wmv3 files using regular idct, the decoder just falls back to simple_idct, since simple_idct_dc doesn't exist (yet). Originally committed as revision 19204 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jason Garrett-Glaser
parent
41faa87886
commit
4f717c69ed
@ -486,6 +486,10 @@ typedef struct DSPContext {
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void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_8x8_dc)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_8x4_dc)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_4x8_dc)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_inv_trans_4x4_dc)(uint8_t *dest, int line_size, DCTELEM *block);
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void (*vc1_v_overlap)(uint8_t* src, int stride);
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void (*vc1_h_overlap)(uint8_t* src, int stride);
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void (*vc1_v_loop_filter4)(uint8_t *src, int stride, int pq);
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@ -337,6 +337,10 @@ int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitConte
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v->s.dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
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v->s.dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
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v->s.dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
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v->s.dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add;
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v->s.dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
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v->s.dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
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v->s.dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
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}
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v->fastuvmc = get_bits1(gb); //common
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@ -2028,8 +2028,12 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
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block[idx] += (block[idx] < 0) ? -mquant : mquant;
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}
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if(!skip_block){
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s->dsp.vc1_inv_trans_8x8(block);
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s->dsp.add_pixels_clamped(block, dst, linesize);
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if(i==1)
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s->dsp.vc1_inv_trans_8x8_dc(dst, linesize, block);
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else{
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s->dsp.vc1_inv_trans_8x8(block);
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s->dsp.add_pixels_clamped(block, dst, linesize);
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}
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if(apply_filter && cbp_top & 0xC)
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s->dsp.vc1_v_loop_filter8(dst, linesize, v->pq);
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if(apply_filter && cbp_left & 0xA)
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@ -2053,7 +2057,10 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
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block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
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}
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if(!(subblkpat & (1 << (3 - j))) && !skip_block){
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s->dsp.vc1_inv_trans_4x4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
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if(i==1)
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s->dsp.vc1_inv_trans_4x4_dc(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
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else
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s->dsp.vc1_inv_trans_4x4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
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if(apply_filter && (j&2 ? pat & (1<<(j-2)) : (cbp_top & (1 << (j + 2)))))
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s->dsp.vc1_v_loop_filter4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, v->pq);
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if(apply_filter && (j&1 ? pat & (1<<(j-1)) : (cbp_left & (1 << (j + 1)))))
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@ -2078,7 +2085,10 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
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block[idx] += (block[idx] < 0) ? -mquant : mquant;
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}
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if(!(subblkpat & (1 << (1 - j))) && !skip_block){
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s->dsp.vc1_inv_trans_8x4(dst + j*4*linesize, linesize, block + off);
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if(i==1)
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s->dsp.vc1_inv_trans_8x4_dc(dst + j*4*linesize, linesize, block + off);
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else
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s->dsp.vc1_inv_trans_8x4(dst + j*4*linesize, linesize, block + off);
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if(apply_filter && j ? pat & 0x3 : (cbp_top & 0xC))
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s->dsp.vc1_v_loop_filter8(dst + j*4*linesize, linesize, v->pq);
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if(apply_filter && cbp_left & (2 << j))
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@ -2103,7 +2113,10 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
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block[idx] += (block[idx] < 0) ? -mquant : mquant;
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}
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if(!(subblkpat & (1 << (1 - j))) && !skip_block){
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s->dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off);
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if(i==1)
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s->dsp.vc1_inv_trans_4x8_dc(dst + j*4, linesize, block + off);
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else
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s->dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off);
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if(apply_filter && cbp_top & (2 << j))
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s->dsp.vc1_v_loop_filter4(dst + j*4, linesize, v->pq);
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if(apply_filter && j ? pat & 0x5 : (cbp_left & 0xA))
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@ -178,6 +178,26 @@ static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
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/** Do inverse transform on 8x8 block
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*/
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static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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int dc = block[0];
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const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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dc = (3 * dc + 1) >> 1;
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dc = (3 * dc + 16) >> 5;
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for(i = 0; i < 8; i++){
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dest[0] = cm[dest[0]+dc];
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dest[1] = cm[dest[1]+dc];
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dest[2] = cm[dest[2]+dc];
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dest[3] = cm[dest[3]+dc];
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dest[4] = cm[dest[4]+dc];
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dest[5] = cm[dest[5]+dc];
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dest[6] = cm[dest[6]+dc];
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dest[7] = cm[dest[7]+dc];
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dest += linesize;
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}
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}
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static void vc1_inv_trans_8x8_c(DCTELEM block[64])
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{
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int i;
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@ -249,6 +269,26 @@ static void vc1_inv_trans_8x8_c(DCTELEM block[64])
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/** Do inverse transform on 8x4 part of block
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*/
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static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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int dc = block[0];
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const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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dc = ( 3 * dc + 1) >> 1;
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dc = (17 * dc + 64) >> 7;
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for(i = 0; i < 4; i++){
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dest[0] = cm[dest[0]+dc];
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dest[1] = cm[dest[1]+dc];
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dest[2] = cm[dest[2]+dc];
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dest[3] = cm[dest[3]+dc];
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dest[4] = cm[dest[4]+dc];
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dest[5] = cm[dest[5]+dc];
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dest[6] = cm[dest[6]+dc];
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dest[7] = cm[dest[7]+dc];
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dest += linesize;
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}
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}
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static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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@ -306,6 +346,22 @@ static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)
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/** Do inverse transform on 4x8 parts of block
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*/
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static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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int dc = block[0];
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const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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dc = (17 * dc + 4) >> 3;
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dc = (12 * dc + 64) >> 7;
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for(i = 0; i < 8; i++){
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dest[0] = cm[dest[0]+dc];
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dest[1] = cm[dest[1]+dc];
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dest[2] = cm[dest[2]+dc];
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dest[3] = cm[dest[3]+dc];
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dest += linesize;
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}
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}
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static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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@ -363,6 +419,22 @@ static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)
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/** Do inverse transform on 4x4 part of block
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*/
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static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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int dc = block[0];
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const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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dc = (17 * dc + 4) >> 3;
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dc = (17 * dc + 64) >> 7;
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for(i = 0; i < 4; i++){
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dest[0] = cm[dest[0]+dc];
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dest[1] = cm[dest[1]+dc];
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dest[2] = cm[dest[2]+dc];
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dest[3] = cm[dest[3]+dc];
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dest += linesize;
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}
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}
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static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int i;
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@ -545,6 +617,10 @@ void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
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dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
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dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
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dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
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dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
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dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
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dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
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dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
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dsp->vc1_h_overlap = vc1_h_overlap_c;
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dsp->vc1_v_overlap = vc1_v_overlap_c;
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dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
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@ -494,6 +494,204 @@ DECLARE_FUNCTION(3, 1)
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DECLARE_FUNCTION(3, 2)
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DECLARE_FUNCTION(3, 3)
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static void vc1_inv_trans_4x4_dc_mmx2(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int dc = block[0];
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dc = (17 * dc + 4) >> 3;
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dc = (17 * dc + 64) >> 7;
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__asm__ volatile(
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"movd %0, %%mm0 \n\t"
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"pshufw $0, %%mm0, %%mm0 \n\t"
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"pxor %%mm1, %%mm1 \n\t"
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"psubw %%mm0, %%mm1 \n\t"
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"packuswb %%mm0, %%mm0 \n\t"
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"packuswb %%mm1, %%mm1 \n\t"
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::"r"(dc)
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);
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__asm__ volatile(
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"movd %0, %%mm2 \n\t"
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"movd %1, %%mm3 \n\t"
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"movd %2, %%mm4 \n\t"
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"movd %3, %%mm5 \n\t"
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"paddusb %%mm0, %%mm2 \n\t"
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"paddusb %%mm0, %%mm3 \n\t"
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"paddusb %%mm0, %%mm4 \n\t"
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"paddusb %%mm0, %%mm5 \n\t"
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"psubusb %%mm1, %%mm2 \n\t"
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"psubusb %%mm1, %%mm3 \n\t"
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"psubusb %%mm1, %%mm4 \n\t"
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"psubusb %%mm1, %%mm5 \n\t"
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"movd %%mm2, %0 \n\t"
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"movd %%mm3, %1 \n\t"
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"movd %%mm4, %2 \n\t"
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"movd %%mm5, %3 \n\t"
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:"+m"(*(uint32_t*)(dest+0*linesize)),
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"+m"(*(uint32_t*)(dest+1*linesize)),
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"+m"(*(uint32_t*)(dest+2*linesize)),
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"+m"(*(uint32_t*)(dest+3*linesize))
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);
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}
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static void vc1_inv_trans_4x8_dc_mmx2(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int dc = block[0];
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dc = (17 * dc + 4) >> 3;
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dc = (12 * dc + 64) >> 7;
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__asm__ volatile(
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"movd %0, %%mm0 \n\t"
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"pshufw $0, %%mm0, %%mm0 \n\t"
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"pxor %%mm1, %%mm1 \n\t"
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"psubw %%mm0, %%mm1 \n\t"
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"packuswb %%mm0, %%mm0 \n\t"
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"packuswb %%mm1, %%mm1 \n\t"
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::"r"(dc)
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);
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__asm__ volatile(
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"movd %0, %%mm2 \n\t"
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"movd %1, %%mm3 \n\t"
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"movd %2, %%mm4 \n\t"
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"movd %3, %%mm5 \n\t"
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"paddusb %%mm0, %%mm2 \n\t"
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"paddusb %%mm0, %%mm3 \n\t"
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"paddusb %%mm0, %%mm4 \n\t"
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"paddusb %%mm0, %%mm5 \n\t"
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"psubusb %%mm1, %%mm2 \n\t"
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"psubusb %%mm1, %%mm3 \n\t"
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"psubusb %%mm1, %%mm4 \n\t"
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"psubusb %%mm1, %%mm5 \n\t"
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"movd %%mm2, %0 \n\t"
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"movd %%mm3, %1 \n\t"
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"movd %%mm4, %2 \n\t"
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"movd %%mm5, %3 \n\t"
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:"+m"(*(uint32_t*)(dest+0*linesize)),
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"+m"(*(uint32_t*)(dest+1*linesize)),
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"+m"(*(uint32_t*)(dest+2*linesize)),
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"+m"(*(uint32_t*)(dest+3*linesize))
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);
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dest += 4*linesize;
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__asm__ volatile(
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"movd %0, %%mm2 \n\t"
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"movd %1, %%mm3 \n\t"
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"movd %2, %%mm4 \n\t"
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"movd %3, %%mm5 \n\t"
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"paddusb %%mm0, %%mm2 \n\t"
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"paddusb %%mm0, %%mm3 \n\t"
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"paddusb %%mm0, %%mm4 \n\t"
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"paddusb %%mm0, %%mm5 \n\t"
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"psubusb %%mm1, %%mm2 \n\t"
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"psubusb %%mm1, %%mm3 \n\t"
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"psubusb %%mm1, %%mm4 \n\t"
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"psubusb %%mm1, %%mm5 \n\t"
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"movd %%mm2, %0 \n\t"
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"movd %%mm3, %1 \n\t"
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"movd %%mm4, %2 \n\t"
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"movd %%mm5, %3 \n\t"
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:"+m"(*(uint32_t*)(dest+0*linesize)),
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"+m"(*(uint32_t*)(dest+1*linesize)),
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"+m"(*(uint32_t*)(dest+2*linesize)),
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"+m"(*(uint32_t*)(dest+3*linesize))
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);
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}
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static void vc1_inv_trans_8x4_dc_mmx2(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int dc = block[0];
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dc = ( 3 * dc + 1) >> 1;
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dc = (17 * dc + 64) >> 7;
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__asm__ volatile(
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"movd %0, %%mm0 \n\t"
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"pshufw $0, %%mm0, %%mm0 \n\t"
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"pxor %%mm1, %%mm1 \n\t"
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"psubw %%mm0, %%mm1 \n\t"
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"packuswb %%mm0, %%mm0 \n\t"
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"packuswb %%mm1, %%mm1 \n\t"
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::"r"(dc)
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);
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__asm__ volatile(
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"movq %0, %%mm2 \n\t"
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"movq %1, %%mm3 \n\t"
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"movq %2, %%mm4 \n\t"
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"movq %3, %%mm5 \n\t"
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"paddusb %%mm0, %%mm2 \n\t"
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"paddusb %%mm0, %%mm3 \n\t"
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"paddusb %%mm0, %%mm4 \n\t"
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"paddusb %%mm0, %%mm5 \n\t"
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"psubusb %%mm1, %%mm2 \n\t"
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"psubusb %%mm1, %%mm3 \n\t"
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"psubusb %%mm1, %%mm4 \n\t"
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"psubusb %%mm1, %%mm5 \n\t"
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"movq %%mm2, %0 \n\t"
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"movq %%mm3, %1 \n\t"
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"movq %%mm4, %2 \n\t"
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"movq %%mm5, %3 \n\t"
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:"+m"(*(uint32_t*)(dest+0*linesize)),
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"+m"(*(uint32_t*)(dest+1*linesize)),
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"+m"(*(uint32_t*)(dest+2*linesize)),
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"+m"(*(uint32_t*)(dest+3*linesize))
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);
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}
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static void vc1_inv_trans_8x8_dc_mmx2(uint8_t *dest, int linesize, DCTELEM *block)
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{
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int dc = block[0];
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dc = (3 * dc + 1) >> 1;
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dc = (3 * dc + 16) >> 5;
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__asm__ volatile(
|
||||
"movd %0, %%mm0 \n\t"
|
||||
"pshufw $0, %%mm0, %%mm0 \n\t"
|
||||
"pxor %%mm1, %%mm1 \n\t"
|
||||
"psubw %%mm0, %%mm1 \n\t"
|
||||
"packuswb %%mm0, %%mm0 \n\t"
|
||||
"packuswb %%mm1, %%mm1 \n\t"
|
||||
::"r"(dc)
|
||||
);
|
||||
__asm__ volatile(
|
||||
"movq %0, %%mm2 \n\t"
|
||||
"movq %1, %%mm3 \n\t"
|
||||
"movq %2, %%mm4 \n\t"
|
||||
"movq %3, %%mm5 \n\t"
|
||||
"paddusb %%mm0, %%mm2 \n\t"
|
||||
"paddusb %%mm0, %%mm3 \n\t"
|
||||
"paddusb %%mm0, %%mm4 \n\t"
|
||||
"paddusb %%mm0, %%mm5 \n\t"
|
||||
"psubusb %%mm1, %%mm2 \n\t"
|
||||
"psubusb %%mm1, %%mm3 \n\t"
|
||||
"psubusb %%mm1, %%mm4 \n\t"
|
||||
"psubusb %%mm1, %%mm5 \n\t"
|
||||
"movq %%mm2, %0 \n\t"
|
||||
"movq %%mm3, %1 \n\t"
|
||||
"movq %%mm4, %2 \n\t"
|
||||
"movq %%mm5, %3 \n\t"
|
||||
:"+m"(*(uint32_t*)(dest+0*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+1*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+2*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+3*linesize))
|
||||
);
|
||||
dest += 4*linesize;
|
||||
__asm__ volatile(
|
||||
"movq %0, %%mm2 \n\t"
|
||||
"movq %1, %%mm3 \n\t"
|
||||
"movq %2, %%mm4 \n\t"
|
||||
"movq %3, %%mm5 \n\t"
|
||||
"paddusb %%mm0, %%mm2 \n\t"
|
||||
"paddusb %%mm0, %%mm3 \n\t"
|
||||
"paddusb %%mm0, %%mm4 \n\t"
|
||||
"paddusb %%mm0, %%mm5 \n\t"
|
||||
"psubusb %%mm1, %%mm2 \n\t"
|
||||
"psubusb %%mm1, %%mm3 \n\t"
|
||||
"psubusb %%mm1, %%mm4 \n\t"
|
||||
"psubusb %%mm1, %%mm5 \n\t"
|
||||
"movq %%mm2, %0 \n\t"
|
||||
"movq %%mm3, %1 \n\t"
|
||||
"movq %%mm4, %2 \n\t"
|
||||
"movq %%mm5, %3 \n\t"
|
||||
:"+m"(*(uint32_t*)(dest+0*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+1*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+2*linesize)),
|
||||
"+m"(*(uint32_t*)(dest+3*linesize))
|
||||
);
|
||||
}
|
||||
|
||||
void ff_vc1dsp_init_mmx(DSPContext* dsp, AVCodecContext *avctx) {
|
||||
mm_flags = mm_support();
|
||||
|
||||
@ -537,5 +735,10 @@ void ff_vc1dsp_init_mmx(DSPContext* dsp, AVCodecContext *avctx) {
|
||||
dsp->avg_vc1_mspel_pixels_tab[ 7] = avg_vc1_mspel_mc31_mmx2;
|
||||
dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_mmx2;
|
||||
dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_mmx2;
|
||||
|
||||
dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_mmx2;
|
||||
dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_mmx2;
|
||||
dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_mmx2;
|
||||
dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_mmx2;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user