| /* |
| * 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 |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| // 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_IS_OFFLINE) && defined(WIN) && defined(__x86_64__) |
| #define MAYBE_MSABI __attribute__((ms_abi)) // Use MS' ABI, not System V. |
| #elif defined(JUMPER_IS_OFFLINE) && defined(WIN) && defined(__i386__) |
| #define MAYBE_MSABI __attribute__((force_align_arg_pointer)) // Re-align stack 4 -> 16 bytes. |
| #else |
| #define MAYBE_MSABI |
| #endif |
| |
| // Any custom ABI to use for all non-externally-facing stage functions. |
| #if defined(__ARM_NEON) && defined(__arm__) |
| // This lets us pass vectors more efficiently on 32-bit ARM. |
| #define ABI __attribute__((pcs("aapcs-vfp"))) |
| #else |
| #define ABI |
| #endif |
| |
| // On ARM we expect that you're using Clang if you want SkJumper to be fast. |
| // If you are, the baseline float stages will use NEON, and lowp stages will |
| // also be available. (If somehow you're building for ARM not using Clang, |
| // you'll get scalar baseline stages and no lowp support.) |
| #if defined(__clang__) && defined(__ARM_NEON) |
| #define JUMPER_HAS_NEON_LOWP |
| #endif |
| |
| static const int SkJumper_kMaxStride = 16; |
| |
| struct SkJumper_MemoryCtx { |
| void* pixels; |
| int stride; |
| }; |
| |
| struct SkJumper_GatherCtx { |
| const void* pixels; |
| int stride; |
| float width; |
| float height; |
| }; |
| |
| // 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_DecalTileCtx { |
| uint32_t mask[SkJumper_kMaxStride]; |
| float limit_x; |
| float limit_y; |
| }; |
| |
| 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; |
| }; |
| |
| struct SkJumper_ByteTablesRGBCtx { |
| const uint8_t *r, *g, *b; |
| int n; |
| }; |
| |
| // 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 fP0, |
| fP1; |
| }; |
| |
| struct SkJumper_UniformColorCtx { |
| float r,g,b,a; |
| uint16_t rgba[4]; // [0,255] in a 16-bit lane. |
| }; |
| |
| struct SkJumper_ColorLookupTableCtx { |
| const float* table; |
| int limits[4]; |
| }; |
| |
| #endif//SkJumper_DEFINED |