diff options
Diffstat (limited to 'files/source/rotate.cc')
| -rw-r--r-- | files/source/rotate.cc | 394 |
1 files changed, 378 insertions, 16 deletions
diff --git a/files/source/rotate.cc b/files/source/rotate.cc index f1e83cbd..8d3978c7 100644 --- a/files/source/rotate.cc +++ b/files/source/rotate.cc @@ -138,7 +138,7 @@ void RotatePlane180(const uint8_t* src, int dst_stride, int width, int height) { - // Swap first and last row and mirror the content. Uses a temporary row. + // Swap top and bottom row and mirror the content. Uses a temporary row. align_buffer_64(row, width); const uint8_t* src_bot = src + src_stride * (height - 1); uint8_t* dst_bot = dst + dst_stride * (height - 1); @@ -178,6 +178,14 @@ void RotatePlane180(const uint8_t* src, } } #endif +#if defined(HAS_MIRRORROW_LSX) + if (TestCpuFlag(kCpuHasLSX)) { + MirrorRow = MirrorRow_Any_LSX; + if (IS_ALIGNED(width, 32)) { + MirrorRow = MirrorRow_LSX; + } + } +#endif #if defined(HAS_MIRRORROW_LASX) if (TestCpuFlag(kCpuHasLASX)) { MirrorRow = MirrorRow_Any_LASX; @@ -206,12 +214,17 @@ void RotatePlane180(const uint8_t* src, CopyRow = IS_ALIGNED(width, 32) ? CopyRow_NEON : CopyRow_Any_NEON; } #endif +#if defined(HAS_COPYROW_RVV) + if (TestCpuFlag(kCpuHasRVV)) { + CopyRow = CopyRow_RVV; + } +#endif // Odd height will harmlessly mirror the middle row twice. for (y = 0; y < half_height; ++y) { - CopyRow(src, row, width); // Copy first row into buffer - MirrorRow(src_bot, dst, width); // Mirror last row into first row - MirrorRow(row, dst_bot, width); // Mirror buffer into last row + CopyRow(src, row, width); // Copy top row into buffer + MirrorRow(src_bot, dst, width); // Mirror bottom row into top row + MirrorRow(row, dst_bot, width); // Mirror buffer into bottom row src += src_stride; dst += dst_stride; src_bot -= src_stride; @@ -477,6 +490,120 @@ int RotatePlane(const uint8_t* src, } LIBYUV_API +void TransposePlane_16(const uint16_t* src, + int src_stride, + uint16_t* dst, + int dst_stride, + int width, + int height) { + int i = height; + // Work across the source in 8x8 tiles + while (i >= 8) { + TransposeWx8_16_C(src, src_stride, dst, dst_stride, width); + src += 8 * src_stride; // Go down 8 rows. + dst += 8; // Move over 8 columns. + i -= 8; + } + + if (i > 0) { + TransposeWxH_16_C(src, src_stride, dst, dst_stride, width, i); + } +} + +static void RotatePlane90_16(const uint16_t* src, + int src_stride, + uint16_t* dst, + int dst_stride, + int width, + int height) { + // Rotate by 90 is a transpose with the source read + // from bottom to top. So set the source pointer to the end + // of the buffer and flip the sign of the source stride. + src += src_stride * (height - 1); + src_stride = -src_stride; + TransposePlane_16(src, src_stride, dst, dst_stride, width, height); +} + +static void RotatePlane270_16(const uint16_t* src, + int src_stride, + uint16_t* dst, + int dst_stride, + int width, + int height) { + // Rotate by 270 is a transpose with the destination written + // from bottom to top. So set the destination pointer to the end + // of the buffer and flip the sign of the destination stride. + dst += dst_stride * (width - 1); + dst_stride = -dst_stride; + TransposePlane_16(src, src_stride, dst, dst_stride, width, height); +} + +static void RotatePlane180_16(const uint16_t* src, + int src_stride, + uint16_t* dst, + int dst_stride, + int width, + int height) { + // Swap top and bottom row and mirror the content. Uses a temporary row. + align_buffer_64_16(row, width); + const uint16_t* src_bot = src + src_stride * (height - 1); + uint16_t* dst_bot = dst + dst_stride * (height - 1); + int half_height = (height + 1) >> 1; + int y; + + // Odd height will harmlessly mirror the middle row twice. + for (y = 0; y < half_height; ++y) { + CopyRow_16_C(src, row, width); // Copy top row into buffer + MirrorRow_16_C(src_bot, dst, width); // Mirror bottom row into top row + MirrorRow_16_C(row, dst_bot, width); // Mirror buffer into bottom row + src += src_stride; + dst += dst_stride; + src_bot -= src_stride; + dst_bot -= dst_stride; + } + free_aligned_buffer_64_16(row); +} + +LIBYUV_API +int RotatePlane_16(const uint16_t* src, + int src_stride, + uint16_t* dst, + int dst_stride, + int width, + int height, + enum RotationMode mode) { + if (!src || width <= 0 || height == 0 || !dst) { + return -1; + } + + // Negative height means invert the image. + if (height < 0) { + height = -height; + src = src + (height - 1) * src_stride; + src_stride = -src_stride; + } + + switch (mode) { + case kRotate0: + // copy frame + CopyPlane_16(src, src_stride, dst, dst_stride, width, height); + return 0; + case kRotate90: + RotatePlane90_16(src, src_stride, dst, dst_stride, width, height); + return 0; + case kRotate270: + RotatePlane270_16(src, src_stride, dst, dst_stride, width, height); + return 0; + case kRotate180: + RotatePlane180_16(src, src_stride, dst, dst_stride, width, height); + return 0; + default: + break; + } + return -1; +} + +LIBYUV_API int I420Rotate(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, @@ -544,6 +671,8 @@ int I420Rotate(const uint8_t* src_y, return -1; } +// I422 has half width x full height UV planes, so rotate by 90 and 270 +// require scaling to maintain 422 subsampling. LIBYUV_API int I422Rotate(const uint8_t* src_y, int src_stride_y, @@ -579,31 +708,42 @@ int I422Rotate(const uint8_t* src_y, switch (mode) { case kRotate0: - // copy frame + // Copy frame CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, height); CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, height); return 0; + + // Note on temporary Y plane for UV. + // Rotation of UV first fits within the Y destination plane rows. + // Y plane is width x height + // Y plane rotated is height x width + // UV plane is (width / 2) x height + // UV plane rotated is height x (width / 2) + // UV plane rotated+scaled is (height / 2) x width. + // UV plane rotated is a temporary that fits within the Y plane rotated. + case kRotate90: - // We need to rotate and rescale, we use plane Y as temporal storage. - RotatePlane90(src_u, src_stride_u, dst_y, height, halfwidth, height); - ScalePlane(dst_y, height, height, halfwidth, dst_u, halfheight, + RotatePlane90(src_u, src_stride_u, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane(dst_y, dst_stride_y, height, halfwidth, dst_u, dst_stride_u, halfheight, width, kFilterBilinear); - RotatePlane90(src_v, src_stride_v, dst_y, height, halfwidth, height); - ScalePlane(dst_y, height, height, halfwidth, dst_v, halfheight, + RotatePlane90(src_v, src_stride_v, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane(dst_y, dst_stride_y, height, halfwidth, dst_v, dst_stride_v, halfheight, width, kFilterLinear); RotatePlane90(src_y, src_stride_y, dst_y, dst_stride_y, width, height); return 0; case kRotate270: - // We need to rotate and rescale, we use plane Y as temporal storage. - RotatePlane270(src_u, src_stride_u, dst_y, height, halfwidth, height); - ScalePlane(dst_y, height, height, halfwidth, dst_u, halfheight, + RotatePlane270(src_u, src_stride_u, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane(dst_y, dst_stride_y, height, halfwidth, dst_u, dst_stride_u, halfheight, width, kFilterBilinear); - RotatePlane270(src_v, src_stride_v, dst_y, height, halfwidth, height); - ScalePlane(dst_y, height, height, halfwidth, dst_v, halfheight, + RotatePlane270(src_v, src_stride_v, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane(dst_y, dst_stride_y, height, halfwidth, dst_v, dst_stride_v, halfheight, width, kFilterLinear); RotatePlane270(src_y, src_stride_y, dst_y, dst_stride_y, width, height); - return 0; case kRotate180: RotatePlane180(src_y, src_stride_y, dst_y, dst_stride_y, width, height); @@ -828,6 +968,228 @@ int Android420ToI420Rotate(const uint8_t* src_y, return -1; } +LIBYUV_API +int I010Rotate(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, + enum RotationMode mode) { + int halfwidth = (width + 1) >> 1; + int halfheight = (height + 1) >> 1; + if (!src_y || !src_u || !src_v || width <= 0 || height == 0 || !dst_y || + !dst_u || !dst_v || dst_stride_y < 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_y = src_y + (height - 1) * src_stride_y; + src_u = src_u + (height - 1) * src_stride_u; + src_v = src_v + (height - 1) * src_stride_v; + src_stride_y = -src_stride_y; + src_stride_u = -src_stride_u; + src_stride_v = -src_stride_v; + } + + switch (mode) { + case kRotate0: + // copy frame + return I010Copy(src_y, src_stride_y, src_u, src_stride_u, src_v, + src_stride_v, dst_y, dst_stride_y, dst_u, dst_stride_u, + dst_v, dst_stride_v, width, height); + case kRotate90: + RotatePlane90_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + RotatePlane90_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, + halfheight); + RotatePlane90_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, + halfheight); + return 0; + case kRotate270: + RotatePlane270_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + RotatePlane270_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, + halfheight); + RotatePlane270_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, + halfheight); + return 0; + case kRotate180: + RotatePlane180_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + RotatePlane180_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, + halfheight); + RotatePlane180_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, + halfheight); + return 0; + default: + break; + } + return -1; +} + +// I210 has half width x full height UV planes, so rotate by 90 and 270 +// require scaling to maintain 422 subsampling. +LIBYUV_API +int I210Rotate(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, + enum RotationMode mode) { + int halfwidth = (width + 1) >> 1; + int halfheight = (height + 1) >> 1; + if (!src_y || !src_u || !src_v || width <= 0 || height == 0 || !dst_y || + !dst_u || !dst_v) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_y = src_y + (height - 1) * src_stride_y; + src_u = src_u + (height - 1) * src_stride_u; + src_v = src_v + (height - 1) * src_stride_v; + src_stride_y = -src_stride_y; + src_stride_u = -src_stride_u; + src_stride_v = -src_stride_v; + } + + switch (mode) { + case kRotate0: + // Copy frame + CopyPlane_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + CopyPlane_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, height); + CopyPlane_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, height); + return 0; + + // Note on temporary Y plane for UV. + // Rotation of UV first fits within the Y destination plane rows. + // Y plane is width x height + // Y plane rotated is height x width + // UV plane is (width / 2) x height + // UV plane rotated is height x (width / 2) + // UV plane rotated+scaled is (height / 2) x width. + // UV plane rotated is a temporary that fits within the Y plane rotated. + + case kRotate90: + RotatePlane90_16(src_u, src_stride_u, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane_16(dst_y, dst_stride_y, height, halfwidth, dst_u, dst_stride_u, + halfheight, width, kFilterBilinear); + RotatePlane90_16(src_v, src_stride_v, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane_16(dst_y, dst_stride_y, height, halfwidth, dst_v, dst_stride_v, + halfheight, width, kFilterLinear); + RotatePlane90_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + return 0; + case kRotate270: + RotatePlane270_16(src_u, src_stride_u, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane_16(dst_y, dst_stride_y, height, halfwidth, dst_u, dst_stride_u, + halfheight, width, kFilterBilinear); + RotatePlane270_16(src_v, src_stride_v, dst_y, dst_stride_y, halfwidth, + height); + ScalePlane_16(dst_y, dst_stride_y, height, halfwidth, dst_v, dst_stride_v, + halfheight, width, kFilterLinear); + RotatePlane270_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + return 0; + case kRotate180: + RotatePlane180_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + RotatePlane180_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, + height); + RotatePlane180_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, + height); + return 0; + default: + break; + } + return -1; +} + +LIBYUV_API +int I410Rotate(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, + enum RotationMode mode) { + if (!src_y || !src_u || !src_v || width <= 0 || height == 0 || !dst_y || + !dst_u || !dst_v || dst_stride_y < 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_y = src_y + (height - 1) * src_stride_y; + src_u = src_u + (height - 1) * src_stride_u; + src_v = src_v + (height - 1) * src_stride_v; + src_stride_y = -src_stride_y; + src_stride_u = -src_stride_u; + src_stride_v = -src_stride_v; + } + + switch (mode) { + case kRotate0: + // copy frame + CopyPlane_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + CopyPlane_16(src_u, src_stride_u, dst_u, dst_stride_u, width, height); + CopyPlane_16(src_v, src_stride_v, dst_v, dst_stride_v, width, height); + return 0; + case kRotate90: + RotatePlane90_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + RotatePlane90_16(src_u, src_stride_u, dst_u, dst_stride_u, width, height); + RotatePlane90_16(src_v, src_stride_v, dst_v, dst_stride_v, width, height); + return 0; + case kRotate270: + RotatePlane270_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + RotatePlane270_16(src_u, src_stride_u, dst_u, dst_stride_u, width, + height); + RotatePlane270_16(src_v, src_stride_v, dst_v, dst_stride_v, width, + height); + return 0; + case kRotate180: + RotatePlane180_16(src_y, src_stride_y, dst_y, dst_stride_y, width, + height); + RotatePlane180_16(src_u, src_stride_u, dst_u, dst_stride_u, width, + height); + RotatePlane180_16(src_v, src_stride_v, dst_v, dst_stride_v, width, + height); + return 0; + default: + break; + } + return -1; +} + #ifdef __cplusplus } // extern "C" } // namespace libyuv |