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move the quantization function to dsp.c

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and add a function pointer for it

Change-Id: Ic7012e35c74a474bf140bb23cdaf9d6950026bc6
This commit is contained in:
Pascal Massimino
2011-03-23 17:33:05 -07:00
parent b2c3575c8f
commit 8b77c63262
3 changed files with 64 additions and 45 deletions
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21
src/enc/vp8enci.h
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@ -144,6 +144,15 @@ extern const int VP8I4ModeOffsets[NUM_BMODES];
typedef int64_t score_t; // type used for scores, rate, distortion
#define MAX_COST ((score_t)0x7fffffffffffffLL)
#define QFIX 17
#define BIAS(b) ((b) << (QFIX - 8))
// Fun fact: this is the _only_ line where we're actually being lossy and
// discarding bits.
static inline int QUANTDIV(int n, int iQ, int B) {
return (n * iQ + B) >> QFIX;
}
extern const uint8_t VP8Zigzag[16];
//-----------------------------------------------------------------------------
// Headers
@ -428,6 +437,18 @@ typedef void (*VP8BlockCopy)(const uint8_t* src, uint8_t* dst);
extern VP8BlockCopy VP8Copy4x4;
extern VP8BlockCopy VP8Copy8x8;
extern VP8BlockCopy VP8Copy16x16;
// Quantization
typedef int (*VP8QuantizeBlock)(int16_t in[16], int16_t out[16],
int n, const VP8Matrix* const mtx);
extern VP8QuantizeBlock VP8EncQuantizeBlock;
typedef enum {
kSSE2,
kSSE3
} CPUFeature;
// returns true if the CPU supports the feature.
typedef int (*VP8CPUInfo)(CPUFeature feature);
extern VP8CPUInfo CPUInfo;
void VP8EncDspInit(); // must be called before using anything from the above.