/* * Copyright 2015 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkHalf.h" #include "SkOnce.h" #include "SkOpts.h" #define SK_OPTS_NS sk_default #include "SkBlitMask_opts.h" #include "SkBlitRow_opts.h" #include "SkBlurImageFilter_opts.h" #include "SkColorCubeFilter_opts.h" #include "SkMatrix_opts.h" #include "SkMorphologyImageFilter_opts.h" #include "SkSwizzler_opts.h" #include "SkTextureCompressor_opts.h" #include "SkXfermode_opts.h" namespace SK_OPTS_NS { static void float_to_half(uint16_t dst[], const float src[], int n) { while (n-->0) { *dst++ = SkFloatToHalf(*src++); } } static void half_to_float(float dst[], const uint16_t src[], int n) { while (n-->0) { *dst++ = SkHalfToFloat(*src++); } } } #if defined(SK_CPU_X86) && !defined(SK_BUILD_FOR_IOS) #if defined(SK_BUILD_FOR_WIN32) #include static void cpuid (uint32_t abcd[4]) { __cpuid ((int*)abcd, 1); } static void cpuid7(uint32_t abcd[4]) { __cpuidex((int*)abcd, 7, 0); } static uint64_t xgetbv(uint32_t xcr) { return _xgetbv(xcr); } #else #include #if !defined(__cpuid_count) // Old Mac Clang doesn't have this defined. #define __cpuid_count(eax, ecx, a, b, c, d) \ __asm__("cpuid" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) : "0"(eax), "2"(ecx)) #endif static void cpuid (uint32_t abcd[4]) { __get_cpuid(1, abcd+0, abcd+1, abcd+2, abcd+3); } static void cpuid7(uint32_t abcd[4]) { __cpuid_count(7, 0, abcd[0], abcd[1], abcd[2], abcd[3]); } static uint64_t xgetbv(uint32_t xcr) { uint32_t eax, edx; __asm__ __volatile__ ( "xgetbv" : "=a"(eax), "=d"(edx) : "c"(xcr)); return (uint64_t)(edx) << 32 | eax; } #endif #elif !defined(SK_ARM_HAS_NEON) && \ defined(SK_CPU_ARM32) && \ defined(SK_BUILD_FOR_ANDROID) && \ !defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) #include #endif namespace SkOpts { // Define default function pointer values here... // If our global compile options are set high enough, these defaults might even be // CPU-specialized, e.g. a typical x86-64 machine might start with SSE2 defaults. // They'll still get a chance to be replaced with even better ones, e.g. using SSE4.1. decltype(create_xfermode) create_xfermode = sk_default::create_xfermode; decltype(color_cube_filter_span) color_cube_filter_span = sk_default::color_cube_filter_span; decltype(box_blur_xx) box_blur_xx = sk_default::box_blur_xx; decltype(box_blur_xy) box_blur_xy = sk_default::box_blur_xy; decltype(box_blur_yx) box_blur_yx = sk_default::box_blur_yx; decltype(dilate_x) dilate_x = sk_default::dilate_x; decltype(dilate_y) dilate_y = sk_default::dilate_y; decltype( erode_x) erode_x = sk_default::erode_x; decltype( erode_y) erode_y = sk_default::erode_y; decltype(texture_compressor) texture_compressor = sk_default::texture_compressor; decltype(fill_block_dimensions) fill_block_dimensions = sk_default::fill_block_dimensions; decltype(blit_mask_d32_a8) blit_mask_d32_a8 = sk_default::blit_mask_d32_a8; decltype(blit_row_color32) blit_row_color32 = sk_default::blit_row_color32; decltype(blit_row_s32a_opaque) blit_row_s32a_opaque = sk_default::blit_row_s32a_opaque; decltype(matrix_translate) matrix_translate = sk_default::matrix_translate; decltype(matrix_scale_translate) matrix_scale_translate = sk_default::matrix_scale_translate; decltype(matrix_affine) matrix_affine = sk_default::matrix_affine; decltype(RGBA_to_BGRA) RGBA_to_BGRA = sk_default::RGBA_to_BGRA; decltype(RGBA_to_rgbA) RGBA_to_rgbA = sk_default::RGBA_to_rgbA; decltype(RGBA_to_bgrA) RGBA_to_bgrA = sk_default::RGBA_to_bgrA; decltype(RGB_to_RGB1) RGB_to_RGB1 = sk_default::RGB_to_RGB1; decltype(RGB_to_BGR1) RGB_to_BGR1 = sk_default::RGB_to_BGR1; decltype(gray_to_RGB1) gray_to_RGB1 = sk_default::gray_to_RGB1; decltype(grayA_to_RGBA) grayA_to_RGBA = sk_default::grayA_to_RGBA; decltype(grayA_to_rgbA) grayA_to_rgbA = sk_default::grayA_to_rgbA; decltype(inverted_CMYK_to_RGB1) inverted_CMYK_to_RGB1 = sk_default::inverted_CMYK_to_RGB1; decltype(inverted_CMYK_to_BGR1) inverted_CMYK_to_BGR1 = sk_default::inverted_CMYK_to_BGR1; decltype(half_to_float) half_to_float = sk_default::half_to_float; decltype(float_to_half) float_to_half = sk_default::float_to_half; // Each Init_foo() is defined in src/opts/SkOpts_foo.cpp. void Init_ssse3(); void Init_sse41(); void Init_sse42() {} void Init_avx() {} void Init_avx2() {} void Init_neon(); static void init() { // TODO: Chrome's not linking _sse* opts on iOS simulator builds. Bug or feature? #if defined(SK_CPU_X86) && !defined(SK_BUILD_FOR_IOS) uint32_t abcd[] = {0,0,0,0}; cpuid(abcd); if (abcd[2] & (1<< 9)) { Init_ssse3(); } if (abcd[2] & (1<<19)) { Init_sse41(); } if (abcd[2] & (1<<20)) { Init_sse42(); } // AVX detection's kind of a pain. This is cribbed from Chromium. if ( ( abcd[2] & (7<<26)) == (7<<26) && // Check bits 26-28 of ecx are all set, (xgetbv(0) & 6 ) == 6 ){ // and check the OS supports XSAVE. Init_avx(); // AVX2 additionally needs bit 5 set on ebx after calling cpuid(7). uint32_t abcd7[] = {0,0,0,0}; cpuid7(abcd7); if (abcd7[1] & (1<<5)) { Init_avx2(); } } #elif !defined(SK_ARM_HAS_NEON) && \ defined(SK_CPU_ARM32) && \ defined(SK_BUILD_FOR_ANDROID) && \ !defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) if (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) { Init_neon(); } #endif } SK_DECLARE_STATIC_ONCE(gInitOnce); void Init() { SkOnce(&gInitOnce, init); } #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS static struct AutoInit { AutoInit() { Init(); } } gAutoInit; #endif }