| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkJumper_DEFINED |
| #define SkJumper_DEFINED |
| |
| // This file contains definitions shared by SkJumper.cpp (compiled normally as part of Skia) |
| // and SkJumper_stages.cpp (compiled into Skia _and_ offline into SkJumper_generated.h). |
| // Keep it simple! |
| |
| // Externally facing functions (start_pipeline) are called a little specially on Windows. |
| #if defined(JUMPER) && defined(WIN) && defined(__x86_64__) |
| #define MAYBE_MSABI __attribute__((ms_abi)) // Use MS' ABI, not System V. |
| #elif defined(JUMPER) && defined(WIN) && defined(__i386__) |
| #define MAYBE_MSABI __attribute__((force_align_arg_pointer)) // Re-align stack 4 -> 16 bytes. |
| #else |
| #define MAYBE_MSABI |
| #endif |
| |
| #if defined(JUMPER) && (defined(__aarch64__) || defined(__arm__)) |
| // To reduce SkJumper's dependency on the Android NDK, |
| // we provide what we need from <string.h>, <stdint.h>, and <stddef.h> ourselves. |
| #define memcpy __builtin_memcpy |
| |
| using int8_t = signed char; |
| using uint8_t = unsigned char; |
| using int16_t = signed short; |
| using uint16_t = unsigned short; |
| using int32_t = signed int; |
| using uint32_t = unsigned int; |
| #if defined(__aarch64__) |
| using int64_t = signed long; |
| using uint64_t = unsigned long; |
| using size_t = uint64_t; |
| #else |
| using int64_t = signed long long; |
| using uint64_t = unsigned long long; |
| using size_t = uint32_t; |
| #endif |
| |
| // Now pretend we've included <stdint.h> (or it'll be included again by <arm_neon.h>). |
| #define __CLANG_STDINT_H |
| #define _STDINT_H_ |
| #else |
| #include <string.h> |
| #include <stdint.h> |
| #endif |
| |
| static const int SkJumper_kMaxStride = 8; |
| |
| struct SkJumper_constants { |
| float iota_F [SkJumper_kMaxStride]; // 0,1,2,3,4,... |
| uint32_t iota_U32[SkJumper_kMaxStride]; // 0,1,2,3,4,... |
| }; |
| |
| struct SkJumper_MemoryCtx { |
| void* pixels; |
| int stride; |
| }; |
| |
| // State shared by save_xy, accumulate, and bilinear_* / bicubic_*. |
| struct SkJumper_SamplerCtx { |
| float x[SkJumper_kMaxStride]; |
| float y[SkJumper_kMaxStride]; |
| float fx[SkJumper_kMaxStride]; |
| float fy[SkJumper_kMaxStride]; |
| float scalex[SkJumper_kMaxStride]; |
| float scaley[SkJumper_kMaxStride]; |
| }; |
| |
| struct SkJumper_TileCtx { |
| float scale; |
| float invScale; // cache of 1/scale |
| }; |
| |
| struct SkJumper_CallbackCtx { |
| MAYBE_MSABI void (*fn)(SkJumper_CallbackCtx* self, int active_pixels/*<= SkJumper_kMaxStride*/); |
| |
| // When called, fn() will have our active pixels available in rgba. |
| // When fn() returns, the pipeline will read back those active pixels from read_from. |
| float rgba[4*SkJumper_kMaxStride]; |
| float* read_from = rgba; |
| }; |
| |
| struct SkJumper_LoadTablesCtx { |
| const void* src; |
| const float *r, *g, *b; |
| }; |
| |
| struct SkJumper_TableCtx { |
| const float* table; |
| int size; |
| }; |
| |
| // This should line up with the memory layout of SkColorSpaceTransferFn. |
| struct SkJumper_ParametricTransferFunction { |
| float G, A,B,C,D,E,F; |
| }; |
| |
| struct SkJumper_GradientCtx { |
| size_t stopCount; |
| float* fs[4]; |
| float* bs[4]; |
| float* ts; |
| }; |
| |
| struct SkJumper_2PtConicalCtx { |
| uint32_t fMask[SkJumper_kMaxStride]; |
| float fCoeffA, |
| fInvCoeffA, |
| fR0, |
| fDR; |
| }; |
| |
| #endif//SkJumper_DEFINED |