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SSE2: yuv->rgb speed-up for point-sampling

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- use statically initialized tables (if WEBP_YUV_USE_SSE2_TABLES is defined)
 - use SSE2 row conversion for yuv->ARGB / RGBA / ABGR / RGB / BGR
 - clean-up and harmonize the WebpUpsamplers[] usage.

Change-Id: Ic5f3659a995927bd7363defac99c1fc03a85a47d
This commit is contained in:
skal
2014-05-22 09:49:42 +02:00
parent 1b99c09cdc
commit a05dc1402c
11 changed files with 863 additions and 161 deletions
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26
src/dsp/dsp.h
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@ -191,21 +191,9 @@ typedef void (*WebPUpsampleLinePairFunc)(
// Fancy upsampling functions to convert YUV to RGB(A) modes
extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */];
// Initializes SSE2 version of the fancy upsamplers.
void WebPInitUpsamplersSSE2(void);
// NEON version
void WebPInitUpsamplersNEON(void);
#endif // FANCY_UPSAMPLING
// Point-sampling methods.
typedef void (*WebPSamplePlaneFunc)(const uint8_t* y, int y_stride,
const uint8_t* u, const uint8_t* v,
int uv_stride,
uint8_t* dst, int dst_stride,
int width, int height);
// Per-row point-sampling methods.
typedef void (*WebPSamplerRowFunc)(const uint8_t* y,
const uint8_t* u, const uint8_t* v,
uint8_t* dst, int len);
@ -215,11 +203,8 @@ void WebPSamplerProcessPlane(const uint8_t* y, int y_stride,
uint8_t* dst, int dst_stride,
int width, int height, WebPSamplerRowFunc func);
// Sampling functions to convert YUV to RGB(A) modes
extern WebPSamplePlaneFunc WebPSamplers[/* MODE_LAST */];
// Initializes MIPS version of the samplers.
void WebPInitSamplersMIPS32(void);
// Sampling functions to convert rows of YUV to RGB(A)
extern WebPSamplerRowFunc WebPSamplers[/* MODE_LAST */];
// General function for converting two lines of ARGB or RGBA.
// 'alpha_is_last' should be true if 0xff000000 is stored in memory as
@ -233,7 +218,7 @@ typedef void (*WebPYUV444Converter)(const uint8_t* y,
extern const WebPYUV444Converter WebPYUV444Converters[/* MODE_LAST */];
// Main function to be called
// Main functions to be called
void WebPInitUpsamplers(void);
void WebPInitSamplers(void);
@ -252,9 +237,6 @@ extern void (*WebPApplyAlphaMultiply4444)(
// To be called first before using the above.
void WebPInitPremultiply(void);
void WebPInitPremultiplySSE2(void); // should not be called directly.
void WebPInitPremultiplyNEON(void);
//------------------------------------------------------------------------------
#ifdef __cplusplus