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store quant_shift as an unsigned char

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in encodframe.c, quant_shift is set to 0 or 1 in vp8cx_invert_quant

only use 8 bits to store this, instead of 16. will allow saving an
xmm register in an updated version of the regular quantize

Change-Id: Ie88c47fe2aff5af0283dab1147fb2791e4b12f90
This commit is contained in:
Johann 2011-04-13 13:45:58 -04:00
parent 538f110407
commit 70f30aa95d
5 changed files with 9 additions and 9 deletions
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2
vp8/encoder/block.h
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@ -34,7 +34,7 @@ typedef struct
// 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
short *quant;
short *quant_fast;
short *quant_shift;
unsigned char *quant_shift;
short *zbin;
short *zrun_zbin_boost;
short *round;

2
vp8/encoder/encodeframe.c
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@ -147,7 +147,7 @@ static const int qzbin_factors_y2[129] =
#define EXACT_QUANT
#ifdef EXACT_QUANT
static void vp8cx_invert_quant(int improved_quant, short *quant,
short *shift, short d)
unsigned char *shift, short d)
{
if(improved_quant)
{

6
vp8/encoder/onyx_int.h
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@ -251,17 +251,17 @@ typedef struct
{
DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y1quant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, unsigned char, Y1quant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y1zbin[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y1round[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2quant[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2quant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, unsigned char, Y2quant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2zbin[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2round[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVquant[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVquant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, unsigned char, UVquant_shift[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVzbin[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVround[QINDEX_RANGE][16]);

6
vp8/encoder/quantize.c
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@ -27,7 +27,7 @@ void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
short *zbin_ptr = b->zbin;
short *round_ptr = b->round;
short *quant_ptr = b->quant_fast;
short *quant_shift_ptr = b->quant_shift;
unsigned char *quant_shift_ptr = b->quant_shift;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
short *dequant_ptr = d->dequant;
@ -112,7 +112,7 @@ void vp8_regular_quantize_b(BLOCK *b, BLOCKD *d)
short *zbin_ptr = b->zbin;
short *round_ptr = b->round;
short *quant_ptr = b->quant;
short *quant_shift_ptr = b->quant_shift;
unsigned char *quant_shift_ptr = b->quant_shift;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
short *dequant_ptr = d->dequant;
@ -166,7 +166,7 @@ void vp8_strict_quantize_b(BLOCK *b, BLOCKD *d)
int sz;
short *coeff_ptr;
short *quant_ptr;
short *quant_shift_ptr;
unsigned char *quant_shift_ptr;
short *qcoeff_ptr;
short *dqcoeff_ptr;
short *dequant_ptr;

2
vp8/encoder/x86/quantize_sse2.asm
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@ -142,7 +142,7 @@ sym(vp8_regular_quantize_b_sse2):
movsx edi, WORD PTR[rsp + temp_qcoeff + %1 * 2]
; downshift by quant_shift[rc]
movsx ecx, WORD PTR[rax + %1 * 2] ; quant_shift_ptr[rc]
movsx cx, BYTE PTR[rax + %1] ; quant_shift_ptr[rc]
sar edi, cl ; also sets Z bit
je rq_zigzag_loop_%1 ; !y
mov WORD PTR[rsp + qcoeff + %1 * 2], di ;qcoeff_ptr[rc] = temp_qcoeff[rc]