/* * Copyright 2011 The LibYuv Project Authors. All rights reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "libyuv/planar_functions.h" #include <assert.h> #include <string.h> // for memset() #include "libyuv/cpu_id.h" #include "libyuv/row.h" #include "libyuv/scale_row.h" // for ScaleRowDown2 #ifdef __cplusplus namespace libyuv { extern "C" { #endif // Copy a plane of data LIBYUV_API void CopyPlane(const uint8_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } LIBYUV_API void CopyPlane_16(const uint16_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, int width, int height) { … } // Convert a plane of 16 bit data to 8 bit LIBYUV_API void Convert16To8Plane(const uint16_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int scale, // 16384 for 10 bits int width, int height) { … } // Convert a plane of 8 bit data to 16 bit LIBYUV_API void Convert8To16Plane(const uint8_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, int scale, // 1024 for 10 bits int width, int height) { … } // Copy I422. LIBYUV_API int I422Copy(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // Copy I444. LIBYUV_API int I444Copy(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // Copy I210. LIBYUV_API int I210Copy(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, uint16_t* dst_y, int dst_stride_y, uint16_t* dst_u, int dst_stride_u, uint16_t* dst_v, int dst_stride_v, int width, int height) { … } // Copy I410. LIBYUV_API int I410Copy(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, uint16_t* dst_y, int dst_stride_y, uint16_t* dst_u, int dst_stride_u, uint16_t* dst_v, int dst_stride_v, int width, int height) { … } // Copy I400. LIBYUV_API int I400ToI400(const uint8_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Convert I420 to I400. LIBYUV_API int I420ToI400(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Copy NV12. Supports inverting. LIBYUV_API int NV12Copy(const uint8_t* src_y, int src_stride_y, const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // Copy NV21. Supports inverting. LIBYUV_API int NV21Copy(const uint8_t* src_y, int src_stride_y, const uint8_t* src_vu, int src_stride_vu, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_vu, int dst_stride_vu, int width, int height) { … } // Support function for NV12 etc UV channels. // Width and height are plane sizes (typically half pixel width). LIBYUV_API void SplitUVPlane(const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } LIBYUV_API void MergeUVPlane(const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // Support function for P010 etc UV channels. // Width and height are plane sizes (typically half pixel width). LIBYUV_API void SplitUVPlane_16(const uint16_t* src_uv, int src_stride_uv, uint16_t* dst_u, int dst_stride_u, uint16_t* dst_v, int dst_stride_v, int width, int height, int depth) { … } LIBYUV_API void MergeUVPlane_16(const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, uint16_t* dst_uv, int dst_stride_uv, int width, int height, int depth) { … } // Convert plane from lsb to msb LIBYUV_API void ConvertToMSBPlane_16(const uint16_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, int width, int height, int depth) { … } // Convert plane from msb to lsb LIBYUV_API void ConvertToLSBPlane_16(const uint16_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, int width, int height, int depth) { … } // Swap U and V channels in interleaved UV plane. LIBYUV_API void SwapUVPlane(const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_vu, int dst_stride_vu, int width, int height) { … } // Convert NV21 to NV12. LIBYUV_API int NV21ToNV12(const uint8_t* src_y, int src_stride_y, const uint8_t* src_vu, int src_stride_vu, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // Test if tile_height is a power of 2 (16 or 32) #define IS_POWEROFTWO(x) … // Detile a plane of data // tile width is 16 and assumed. // tile_height is 16 or 32 for MM21. // src_stride_y is bytes per row of source ignoring tiling. e.g. 640 // TODO: More detile row functions. LIBYUV_API int DetilePlane(const uint8_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int width, int height, int tile_height) { … } // Convert a plane of 16 bit tiles of 16 x H to linear. // tile width is 16 and assumed. // tile_height is 16 or 32 for MT2T. LIBYUV_API int DetilePlane_16(const uint16_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, int width, int height, int tile_height) { … } LIBYUV_API void DetileSplitUVPlane(const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height, int tile_height) { … } LIBYUV_API void DetileToYUY2(const uint8_t* src_y, int src_stride_y, const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_yuy2, int dst_stride_yuy2, int width, int height, int tile_height) { … } // Support function for NV12 etc RGB channels. // Width and height are plane sizes (typically half pixel width). LIBYUV_API void SplitRGBPlane(const uint8_t* src_rgb, int src_stride_rgb, uint8_t* dst_r, int dst_stride_r, uint8_t* dst_g, int dst_stride_g, uint8_t* dst_b, int dst_stride_b, int width, int height) { … } LIBYUV_API void MergeRGBPlane(const uint8_t* src_r, int src_stride_r, const uint8_t* src_g, int src_stride_g, const uint8_t* src_b, int src_stride_b, uint8_t* dst_rgb, int dst_stride_rgb, int width, int height) { … } LIBYUV_NOINLINE static void SplitARGBPlaneAlpha(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_r, int dst_stride_r, uint8_t* dst_g, int dst_stride_g, uint8_t* dst_b, int dst_stride_b, uint8_t* dst_a, int dst_stride_a, int width, int height) { … } LIBYUV_NOINLINE static void SplitARGBPlaneOpaque(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_r, int dst_stride_r, uint8_t* dst_g, int dst_stride_g, uint8_t* dst_b, int dst_stride_b, int width, int height) { … } LIBYUV_API void SplitARGBPlane(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_r, int dst_stride_r, uint8_t* dst_g, int dst_stride_g, uint8_t* dst_b, int dst_stride_b, uint8_t* dst_a, int dst_stride_a, int width, int height) { … } LIBYUV_NOINLINE static void MergeARGBPlaneAlpha(const uint8_t* src_r, int src_stride_r, const uint8_t* src_g, int src_stride_g, const uint8_t* src_b, int src_stride_b, const uint8_t* src_a, int src_stride_a, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } LIBYUV_NOINLINE static void MergeARGBPlaneOpaque(const uint8_t* src_r, int src_stride_r, const uint8_t* src_g, int src_stride_g, const uint8_t* src_b, int src_stride_b, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } LIBYUV_API void MergeARGBPlane(const uint8_t* src_r, int src_stride_r, const uint8_t* src_g, int src_stride_g, const uint8_t* src_b, int src_stride_b, const uint8_t* src_a, int src_stride_a, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // TODO(yuan): Support 2 bit alpha channel. LIBYUV_API void MergeXR30Plane(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, uint8_t* dst_ar30, int dst_stride_ar30, int width, int height, int depth) { … } LIBYUV_NOINLINE static void MergeAR64PlaneAlpha(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, const uint16_t* src_a, int src_stride_a, uint16_t* dst_ar64, int dst_stride_ar64, int width, int height, int depth) { … } LIBYUV_NOINLINE static void MergeAR64PlaneOpaque(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, uint16_t* dst_ar64, int dst_stride_ar64, int width, int height, int depth) { … } LIBYUV_API void MergeAR64Plane(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, const uint16_t* src_a, int src_stride_a, uint16_t* dst_ar64, int dst_stride_ar64, int width, int height, int depth) { … } LIBYUV_NOINLINE static void MergeARGB16To8PlaneAlpha(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, const uint16_t* src_a, int src_stride_a, uint8_t* dst_argb, int dst_stride_argb, int width, int height, int depth) { … } LIBYUV_NOINLINE static void MergeARGB16To8PlaneOpaque(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, uint8_t* dst_argb, int dst_stride_argb, int width, int height, int depth) { … } LIBYUV_API void MergeARGB16To8Plane(const uint16_t* src_r, int src_stride_r, const uint16_t* src_g, int src_stride_g, const uint16_t* src_b, int src_stride_b, const uint16_t* src_a, int src_stride_a, uint8_t* dst_argb, int dst_stride_argb, int width, int height, int depth) { … } // Convert YUY2 to I422. LIBYUV_API int YUY2ToI422(const uint8_t* src_yuy2, int src_stride_yuy2, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // Convert UYVY to I422. LIBYUV_API int UYVYToI422(const uint8_t* src_uyvy, int src_stride_uyvy, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // Convert YUY2 to Y. LIBYUV_API int YUY2ToY(const uint8_t* src_yuy2, int src_stride_yuy2, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Convert UYVY to Y. LIBYUV_API int UYVYToY(const uint8_t* src_uyvy, int src_stride_uyvy, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Mirror a plane of data. // See Also I400Mirror LIBYUV_API void MirrorPlane(const uint8_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Mirror a plane of UV data. LIBYUV_API void MirrorUVPlane(const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // Mirror I400 with optional flipping LIBYUV_API int I400Mirror(const uint8_t* src_y, int src_stride_y, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // Mirror I420 with optional flipping LIBYUV_API int I420Mirror(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // NV12 mirror. LIBYUV_API int NV12Mirror(const uint8_t* src_y, int src_stride_y, const uint8_t* src_uv, int src_stride_uv, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // ARGB mirror. LIBYUV_API int ARGBMirror(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // RGB24 mirror. LIBYUV_API int RGB24Mirror(const uint8_t* src_rgb24, int src_stride_rgb24, uint8_t* dst_rgb24, int dst_stride_rgb24, int width, int height) { … } // Alpha Blend 2 ARGB images and store to destination. LIBYUV_API int ARGBBlend(const uint8_t* src_argb0, int src_stride_argb0, const uint8_t* src_argb1, int src_stride_argb1, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Alpha Blend plane and store to destination. LIBYUV_API int BlendPlane(const uint8_t* src_y0, int src_stride_y0, const uint8_t* src_y1, int src_stride_y1, const uint8_t* alpha, int alpha_stride, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } #define MAXTWIDTH … // Alpha Blend YUV images and store to destination. LIBYUV_API int I420Blend(const uint8_t* src_y0, int src_stride_y0, const uint8_t* src_u0, int src_stride_u0, const uint8_t* src_v0, int src_stride_v0, const uint8_t* src_y1, int src_stride_y1, const uint8_t* src_u1, int src_stride_u1, const uint8_t* src_v1, int src_stride_v1, const uint8_t* alpha, int alpha_stride, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height) { … } // Multiply 2 ARGB images and store to destination. LIBYUV_API int ARGBMultiply(const uint8_t* src_argb0, int src_stride_argb0, const uint8_t* src_argb1, int src_stride_argb1, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Add 2 ARGB images and store to destination. LIBYUV_API int ARGBAdd(const uint8_t* src_argb0, int src_stride_argb0, const uint8_t* src_argb1, int src_stride_argb1, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Subtract 2 ARGB images and store to destination. LIBYUV_API int ARGBSubtract(const uint8_t* src_argb0, int src_stride_argb0, const uint8_t* src_argb1, int src_stride_argb1, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Convert RAW to RGB24. LIBYUV_API int RAWToRGB24(const uint8_t* src_raw, int src_stride_raw, uint8_t* dst_rgb24, int dst_stride_rgb24, int width, int height) { … } // TODO(fbarchard): Consider uint8_t value LIBYUV_API void SetPlane(uint8_t* dst_y, int dst_stride_y, int width, int height, uint32_t value) { … } // Draw a rectangle into I420 LIBYUV_API int I420Rect(uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int x, int y, int width, int height, int value_y, int value_u, int value_v) { … } // Draw a rectangle into ARGB LIBYUV_API int ARGBRect(uint8_t* dst_argb, int dst_stride_argb, int dst_x, int dst_y, int width, int height, uint32_t value) { … } // Convert unattentuated ARGB to preattenuated ARGB. // An unattenutated ARGB alpha blend uses the formula // p = a * f + (1 - a) * b // where // p is output pixel // f is foreground pixel // b is background pixel // a is alpha value from foreground pixel // An preattenutated ARGB alpha blend uses the formula // p = f + (1 - a) * b // where // f is foreground pixel premultiplied by alpha LIBYUV_API int ARGBAttenuate(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Convert preattentuated ARGB to unattenuated ARGB. LIBYUV_API int ARGBUnattenuate(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Convert ARGB to Grayed ARGB. LIBYUV_API int ARGBGrayTo(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Make a rectangle of ARGB gray scale. LIBYUV_API int ARGBGray(uint8_t* dst_argb, int dst_stride_argb, int dst_x, int dst_y, int width, int height) { … } // Make a rectangle of ARGB Sepia tone. LIBYUV_API int ARGBSepia(uint8_t* dst_argb, int dst_stride_argb, int dst_x, int dst_y, int width, int height) { … } // Apply a 4x4 matrix to each ARGB pixel. // Note: Normally for shading, but can be used to swizzle or invert. LIBYUV_API int ARGBColorMatrix(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, const int8_t* matrix_argb, int width, int height) { … } // Apply a 4x3 matrix to each ARGB pixel. // Deprecated. LIBYUV_API int RGBColorMatrix(uint8_t* dst_argb, int dst_stride_argb, const int8_t* matrix_rgb, int dst_x, int dst_y, int width, int height) { … } // Apply a color table each ARGB pixel. // Table contains 256 ARGB values. LIBYUV_API int ARGBColorTable(uint8_t* dst_argb, int dst_stride_argb, const uint8_t* table_argb, int dst_x, int dst_y, int width, int height) { … } // Apply a color table each ARGB pixel but preserve destination alpha. // Table contains 256 ARGB values. LIBYUV_API int RGBColorTable(uint8_t* dst_argb, int dst_stride_argb, const uint8_t* table_argb, int dst_x, int dst_y, int width, int height) { … } // ARGBQuantize is used to posterize art. // e.g. rgb / qvalue * qvalue + qvalue / 2 // But the low levels implement efficiently with 3 parameters, and could be // used for other high level operations. // dst_argb[0] = (b * scale >> 16) * interval_size + interval_offset; // where scale is 1 / interval_size as a fixed point value. // The divide is replaces with a multiply by reciprocal fixed point multiply. // Caveat - although SSE2 saturates, the C function does not and should be used // with care if doing anything but quantization. LIBYUV_API int ARGBQuantize(uint8_t* dst_argb, int dst_stride_argb, int scale, int interval_size, int interval_offset, int dst_x, int dst_y, int width, int height) { … } // Computes table of cumulative sum for image where the value is the sum // of all values above and to the left of the entry. Used by ARGBBlur. LIBYUV_API int ARGBComputeCumulativeSum(const uint8_t* src_argb, int src_stride_argb, int32_t* dst_cumsum, int dst_stride32_cumsum, int width, int height) { … } // Blur ARGB image. // Caller should allocate CumulativeSum table of width * height * 16 bytes // aligned to 16 byte boundary. height can be radius * 2 + 2 to save memory // as the buffer is treated as circular. LIBYUV_API int ARGBBlur(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int32_t* dst_cumsum, int dst_stride32_cumsum, int width, int height, int radius) { … } // Multiply ARGB image by a specified ARGB value. LIBYUV_API int ARGBShade(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height, uint32_t value) { … } // Interpolate 2 planes by specified amount (0 to 255). LIBYUV_API int InterpolatePlane(const uint8_t* src0, int src_stride0, const uint8_t* src1, int src_stride1, uint8_t* dst, int dst_stride, int width, int height, int interpolation) { … } // Interpolate 2 planes by specified amount (0 to 255). LIBYUV_API int InterpolatePlane_16(const uint16_t* src0, int src_stride0, const uint16_t* src1, int src_stride1, uint16_t* dst, int dst_stride, int width, int height, int interpolation) { … } // Interpolate 2 ARGB images by specified amount (0 to 255). LIBYUV_API int ARGBInterpolate(const uint8_t* src_argb0, int src_stride_argb0, const uint8_t* src_argb1, int src_stride_argb1, uint8_t* dst_argb, int dst_stride_argb, int width, int height, int interpolation) { … } // Interpolate 2 YUV images by specified amount (0 to 255). LIBYUV_API int I420Interpolate(const uint8_t* src0_y, int src0_stride_y, const uint8_t* src0_u, int src0_stride_u, const uint8_t* src0_v, int src0_stride_v, const uint8_t* src1_y, int src1_stride_y, const uint8_t* src1_u, int src1_stride_u, const uint8_t* src1_v, int src1_stride_v, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_u, int dst_stride_u, uint8_t* dst_v, int dst_stride_v, int width, int height, int interpolation) { … } // Shuffle ARGB channel order. e.g. BGRA to ARGB. LIBYUV_API int ARGBShuffle(const uint8_t* src_bgra, int src_stride_bgra, uint8_t* dst_argb, int dst_stride_argb, const uint8_t* shuffler, int width, int height) { … } // Shuffle AR64 channel order. e.g. AR64 to AB64. LIBYUV_API int AR64Shuffle(const uint16_t* src_ar64, int src_stride_ar64, uint16_t* dst_ar64, int dst_stride_ar64, const uint8_t* shuffler, int width, int height) { … } // Gauss blur a float plane using Gaussian 5x5 filter with // coefficients of 1, 4, 6, 4, 1. // Each destination pixel is a blur of the 5x5 // pixels from the source. // Source edges are clamped. // Edge is 2 pixels on each side, and interior is multiple of 4. LIBYUV_API int GaussPlane_F32(const float* src, int src_stride, float* dst, int dst_stride, int width, int height) { … } // Sobel ARGB effect. static int ARGBSobelize(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height, void (*SobelRow)(const uint8_t* src_sobelx, const uint8_t* src_sobely, uint8_t* dst, int width)) { … } // Sobel ARGB effect. LIBYUV_API int ARGBSobel(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Sobel ARGB effect with planar output. LIBYUV_API int ARGBSobelToPlane(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_y, int dst_stride_y, int width, int height) { … } // SobelXY ARGB effect. // Similar to Sobel, but also stores Sobel X in R and Sobel Y in B. G = Sobel. LIBYUV_API int ARGBSobelXY(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Apply a 4x4 polynomial to each ARGB pixel. LIBYUV_API int ARGBPolynomial(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, const float* poly, int width, int height) { … } // Convert plane of 16 bit shorts to half floats. // Source values are multiplied by scale before storing as half float. LIBYUV_API int HalfFloatPlane(const uint16_t* src_y, int src_stride_y, uint16_t* dst_y, int dst_stride_y, float scale, int width, int height) { … } // Convert a buffer of bytes to floats, scale the values and store as floats. LIBYUV_API int ByteToFloat(const uint8_t* src_y, float* dst_y, float scale, int width) { … } // Apply a lumacolortable to each ARGB pixel. LIBYUV_API int ARGBLumaColorTable(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, const uint8_t* luma, int width, int height) { … } // Copy Alpha from one ARGB image to another. LIBYUV_API int ARGBCopyAlpha(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } // Extract just the alpha channel from ARGB. LIBYUV_API int ARGBExtractAlpha(const uint8_t* src_argb, int src_stride_argb, uint8_t* dst_a, int dst_stride_a, int width, int height) { … } // Copy a planar Y channel to the alpha channel of a destination ARGB image. LIBYUV_API int ARGBCopyYToAlpha(const uint8_t* src_y, int src_stride_y, uint8_t* dst_argb, int dst_stride_argb, int width, int height) { … } LIBYUV_API int YUY2ToNV12(const uint8_t* src_yuy2, int src_stride_yuy2, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } LIBYUV_API int UYVYToNV12(const uint8_t* src_uyvy, int src_stride_uyvy, uint8_t* dst_y, int dst_stride_y, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } // width and height are src size allowing odd size handling. LIBYUV_API void HalfMergeUVPlane(const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, uint8_t* dst_uv, int dst_stride_uv, int width, int height) { … } #ifdef __cplusplus } // extern "C" } // namespace libyuv #endif
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