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-rw-r--r--media/libwebp/dsp/yuv.h86
1 files changed, 29 insertions, 57 deletions
diff --git a/media/libwebp/dsp/yuv.h b/media/libwebp/dsp/yuv.h
index 1d33b5863..b4c5d0b6c 100644
--- a/media/libwebp/dsp/yuv.h
+++ b/media/libwebp/dsp/yuv.h
@@ -35,19 +35,9 @@
#ifndef WEBP_DSP_YUV_H_
#define WEBP_DSP_YUV_H_
-#include "./dsp.h"
+#include "../dsp/dsp.h"
#include "../dec/vp8_dec.h"
-#if defined(WEBP_EXPERIMENTAL_FEATURES)
-// Do NOT activate this feature for real compression. This is only experimental!
-// This flag is for comparison purpose against JPEG's "YUVj" natural colorspace.
-// This colorspace is close to Rec.601's Y'CbCr model with the notable
-// difference of allowing larger range for luma/chroma.
-// See http://en.wikipedia.org/wiki/YCbCr#JPEG_conversion paragraph, and its
-// difference with http://en.wikipedia.org/wiki/YCbCr#ITU-R_BT.601_conversion
-// #define USE_YUVj
-#endif
-
//------------------------------------------------------------------------------
// YUV -> RGB conversion
@@ -58,12 +48,8 @@ extern "C" {
enum {
YUV_FIX = 16, // fixed-point precision for RGB->YUV
YUV_HALF = 1 << (YUV_FIX - 1),
- YUV_MASK = (256 << YUV_FIX) - 1,
- YUV_RANGE_MIN = -227, // min value of r/g/b output
- YUV_RANGE_MAX = 256 + 226, // max value of r/g/b output
YUV_FIX2 = 6, // fixed-point precision for YUV->RGB
- YUV_HALF2 = 1 << YUV_FIX2 >> 1,
YUV_MASK2 = (256 << YUV_FIX2) - 1
};
@@ -111,7 +97,7 @@ static WEBP_INLINE void VP8YuvToRgb565(int y, int u, int v,
const int b = VP8YUVToB(y, u); // 5 usable bits
const int rg = (r & 0xf8) | (g >> 5);
const int gb = ((g << 3) & 0xe0) | (b >> 3);
-#ifdef WEBP_SWAP_16BIT_CSP
+#if (WEBP_SWAP_16BIT_CSP == 1)
rgb[0] = gb;
rgb[1] = rg;
#else
@@ -127,7 +113,7 @@ static WEBP_INLINE void VP8YuvToRgba4444(int y, int u, int v,
const int b = VP8YUVToB(y, u); // 4 usable bits
const int rg = (r & 0xf0) | (g >> 4);
const int ba = (b & 0xf0) | 0x0f; // overwrite the lower 4 bits
-#ifdef WEBP_SWAP_16BIT_CSP
+#if (WEBP_SWAP_16BIT_CSP == 1)
argb[0] = ba;
argb[1] = rg;
#else
@@ -157,32 +143,42 @@ static WEBP_INLINE void VP8YuvToRgba(uint8_t y, uint8_t u, uint8_t v,
rgba[3] = 0xff;
}
-// Must be called before everything, to initialize the tables.
-void VP8YUVInit(void);
-
//-----------------------------------------------------------------------------
// SSE2 extra functions (mostly for upsampling_sse2.c)
#if defined(WEBP_USE_SSE2)
// Process 32 pixels and store the result (16b, 24b or 32b per pixel) in *dst.
-void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
-void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
-void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
-void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
-void VP8YuvToArgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
-void VP8YuvToRgba444432(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+void VP8YuvToRgba32_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+void VP8YuvToRgb32_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+void VP8YuvToBgra32_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+void VP8YuvToBgr32_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst);
-void VP8YuvToRgb56532(const uint8_t* y, const uint8_t* u, const uint8_t* v,
- uint8_t* dst);
+void VP8YuvToArgb32_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+void VP8YuvToRgba444432_SSE2(const uint8_t* y, const uint8_t* u,
+ const uint8_t* v, uint8_t* dst);
+void VP8YuvToRgb56532_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
#endif // WEBP_USE_SSE2
+//-----------------------------------------------------------------------------
+// SSE41 extra functions (mostly for upsampling_sse41.c)
+
+#if defined(WEBP_USE_SSE41)
+
+// Process 32 pixels and store the result (16b, 24b or 32b per pixel) in *dst.
+void VP8YuvToRgb32_SSE41(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+void VP8YuvToBgr32_SSE41(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+ uint8_t* dst);
+
+#endif // WEBP_USE_SSE41
+
//------------------------------------------------------------------------------
// RGB -> YUV conversion
@@ -192,8 +188,6 @@ static WEBP_INLINE int VP8ClipUV(int uv, int rounding) {
return ((uv & ~0xff) == 0) ? uv : (uv < 0) ? 0 : 255;
}
-#ifndef USE_YUVj
-
static WEBP_INLINE int VP8RGBToY(int r, int g, int b, int rounding) {
const int luma = 16839 * r + 33059 * g + 6420 * b;
return (luma + rounding + (16 << YUV_FIX)) >> YUV_FIX; // no need to clip
@@ -209,28 +203,6 @@ static WEBP_INLINE int VP8RGBToV(int r, int g, int b, int rounding) {
return VP8ClipUV(v, rounding);
}
-#else
-
-// This JPEG-YUV colorspace, only for comparison!
-// These are also 16bit precision coefficients from Rec.601, but with full
-// [0..255] output range.
-static WEBP_INLINE int VP8RGBToY(int r, int g, int b, int rounding) {
- const int luma = 19595 * r + 38470 * g + 7471 * b;
- return (luma + rounding) >> YUV_FIX; // no need to clip
-}
-
-static WEBP_INLINE int VP8RGBToU(int r, int g, int b, int rounding) {
- const int u = -11058 * r - 21710 * g + 32768 * b;
- return VP8ClipUV(u, rounding);
-}
-
-static WEBP_INLINE int VP8RGBToV(int r, int g, int b, int rounding) {
- const int v = 32768 * r - 27439 * g - 5329 * b;
- return VP8ClipUV(v, rounding);
-}
-
-#endif // USE_YUVj
-
#ifdef __cplusplus
} // extern "C"
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 19:11:19 +0000