| /* |
| * Copyright 2009 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkBitmapFilter_opts_SSE2.h" |
| #include "SkBitmapProcState_opts_SSE2.h" |
| #include "SkBitmapProcState_opts_SSSE3.h" |
| #include "SkBitmapScaler.h" |
| #include "SkBlitMask.h" |
| #include "SkBlitRow.h" |
| #include "SkBlitRow_opts_SSE2.h" |
| #include "SkBlitRow_opts_SSE4.h" |
| #include "SkOncePtr.h" |
| #include "SkRTConf.h" |
| |
| #if defined(_MSC_VER) && defined(_WIN64) |
| #include <intrin.h> |
| #endif |
| |
| /* This file must *not* be compiled with -msse or any other optional SIMD |
| extension, otherwise gcc may generate SIMD instructions even for scalar ops |
| (and thus give an invalid instruction on Pentium3 on the code below). |
| For example, only files named *_SSE2.cpp in this directory should be |
| compiled with -msse2 or higher. */ |
| |
| |
| /* Function to get the CPU SSE-level in runtime, for different compilers. */ |
| #ifdef _MSC_VER |
| static inline void getcpuid(int info_type, int info[4]) { |
| #if defined(_WIN64) |
| __cpuid(info, info_type); |
| #else |
| __asm { |
| mov eax, [info_type] |
| cpuid |
| mov edi, [info] |
| mov [edi], eax |
| mov [edi+4], ebx |
| mov [edi+8], ecx |
| mov [edi+12], edx |
| } |
| #endif |
| } |
| #elif defined(__x86_64__) |
| static inline void getcpuid(int info_type, int info[4]) { |
| asm volatile ( |
| "cpuid \n\t" |
| : "=a"(info[0]), "=b"(info[1]), "=c"(info[2]), "=d"(info[3]) |
| : "a"(info_type) |
| ); |
| } |
| #else |
| static inline void getcpuid(int info_type, int info[4]) { |
| // We save and restore ebx, so this code can be compatible with -fPIC |
| asm volatile ( |
| "pushl %%ebx \n\t" |
| "cpuid \n\t" |
| "movl %%ebx, %1 \n\t" |
| "popl %%ebx \n\t" |
| : "=a"(info[0]), "=r"(info[1]), "=c"(info[2]), "=d"(info[3]) |
| : "a"(info_type) |
| ); |
| } |
| #endif |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /* Fetch the SIMD level directly from the CPU, at run-time. |
| * Only checks the levels needed by the optimizations in this file. |
| */ |
| static int* get_SIMD_level() { |
| int cpu_info[4] = { 0, 0, 0, 0 }; |
| getcpuid(1, cpu_info); |
| |
| int* level = new int; |
| |
| if ((cpu_info[2] & (1<<20)) != 0) { |
| *level = SK_CPU_SSE_LEVEL_SSE42; |
| } else if ((cpu_info[2] & (1<<19)) != 0) { |
| *level = SK_CPU_SSE_LEVEL_SSE41; |
| } else if ((cpu_info[2] & (1<<9)) != 0) { |
| *level = SK_CPU_SSE_LEVEL_SSSE3; |
| } else if ((cpu_info[3] & (1<<26)) != 0) { |
| *level = SK_CPU_SSE_LEVEL_SSE2; |
| } else { |
| *level = 0; |
| } |
| return level; |
| } |
| |
| SK_DECLARE_STATIC_ONCE_PTR(int, gSIMDLevel); |
| |
| /* Verify that the requested SIMD level is supported in the build. |
| * If not, check if the platform supports it. |
| */ |
| static inline bool supports_simd(int minLevel) { |
| #if defined(SK_CPU_SSE_LEVEL) |
| if (minLevel <= SK_CPU_SSE_LEVEL) { |
| return true; |
| } else |
| #endif |
| { |
| #if defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) |
| /* For the Android framework we should always know at compile time if the device |
| * we are building for supports SSSE3. The one exception to this rule is on the |
| * emulator where we are compiled without the -mssse3 option (so we have no |
| * SSSE3 procs) but can be run on a host machine that supports SSSE3 |
| * instructions. So for that particular case we disable our SSSE3 options. |
| */ |
| return false; |
| #else |
| return minLevel <= *gSIMDLevel.get(get_SIMD_level); |
| #endif |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| void SkBitmapScaler::PlatformConvolutionProcs(SkConvolutionProcs* procs) { |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| procs->fExtraHorizontalReads = 3; |
| procs->fConvolveVertically = &convolveVertically_SSE2; |
| procs->fConvolve4RowsHorizontally = &convolve4RowsHorizontally_SSE2; |
| procs->fConvolveHorizontally = &convolveHorizontally_SSE2; |
| procs->fApplySIMDPadding = &applySIMDPadding_SSE2; |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| void SkBitmapProcState::platformProcs() { |
| /* Every optimization in the function requires at least SSE2 */ |
| if (!supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| return; |
| } |
| const bool ssse3 = supports_simd(SK_CPU_SSE_LEVEL_SSSE3); |
| |
| /* Check fSampleProc32 */ |
| if (fSampleProc32 == S32_opaque_D32_filter_DX) { |
| if (ssse3) { |
| fSampleProc32 = S32_opaque_D32_filter_DX_SSSE3; |
| } else { |
| fSampleProc32 = S32_opaque_D32_filter_DX_SSE2; |
| } |
| } else if (fSampleProc32 == S32_opaque_D32_filter_DXDY) { |
| if (ssse3) { |
| fSampleProc32 = S32_opaque_D32_filter_DXDY_SSSE3; |
| } |
| } else if (fSampleProc32 == S32_alpha_D32_filter_DX) { |
| if (ssse3) { |
| fSampleProc32 = S32_alpha_D32_filter_DX_SSSE3; |
| } else { |
| fSampleProc32 = S32_alpha_D32_filter_DX_SSE2; |
| } |
| } else if (fSampleProc32 == S32_alpha_D32_filter_DXDY) { |
| if (ssse3) { |
| fSampleProc32 = S32_alpha_D32_filter_DXDY_SSSE3; |
| } |
| } |
| |
| /* Check fMatrixProc */ |
| if (fMatrixProc == ClampX_ClampY_filter_scale) { |
| fMatrixProc = ClampX_ClampY_filter_scale_SSE2; |
| } else if (fMatrixProc == ClampX_ClampY_nofilter_scale) { |
| fMatrixProc = ClampX_ClampY_nofilter_scale_SSE2; |
| } else if (fMatrixProc == ClampX_ClampY_filter_affine) { |
| fMatrixProc = ClampX_ClampY_filter_affine_SSE2; |
| } else if (fMatrixProc == ClampX_ClampY_nofilter_affine) { |
| fMatrixProc = ClampX_ClampY_nofilter_affine_SSE2; |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| static const SkBlitRow::Proc16 platform_16_procs[] = { |
| S32_D565_Opaque_SSE2, // S32_D565_Opaque |
| nullptr, // S32_D565_Blend |
| S32A_D565_Opaque_SSE2, // S32A_D565_Opaque |
| nullptr, // S32A_D565_Blend |
| S32_D565_Opaque_Dither_SSE2, // S32_D565_Opaque_Dither |
| nullptr, // S32_D565_Blend_Dither |
| S32A_D565_Opaque_Dither_SSE2, // S32A_D565_Opaque_Dither |
| nullptr, // S32A_D565_Blend_Dither |
| }; |
| |
| SkBlitRow::Proc16 SkBlitRow::PlatformFactory565(unsigned flags) { |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| return platform_16_procs[flags]; |
| } else { |
| return nullptr; |
| } |
| } |
| |
| static const SkBlitRow::ColorProc16 platform_565_colorprocs_SSE2[] = { |
| Color32A_D565_SSE2, // Color32A_D565, |
| nullptr, // Color32A_D565_Dither |
| }; |
| |
| SkBlitRow::ColorProc16 SkBlitRow::PlatformColorFactory565(unsigned flags) { |
| /* If you're thinking about writing an SSE4 version of this, do check it's |
| * actually faster on Atom. Our original SSE4 version was slower than this |
| * SSE2 version on Silvermont, and only marginally faster on a Core i7, |
| * mainly due to the MULLD timings. |
| */ |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| return platform_565_colorprocs_SSE2[flags]; |
| } else { |
| return nullptr; |
| } |
| } |
| |
| static const SkBlitRow::Proc32 platform_32_procs_SSE2[] = { |
| nullptr, // S32_Opaque, |
| S32_Blend_BlitRow32_SSE2, // S32_Blend, |
| S32A_Opaque_BlitRow32_SSE2, // S32A_Opaque |
| S32A_Blend_BlitRow32_SSE2, // S32A_Blend, |
| }; |
| |
| static const SkBlitRow::Proc32 platform_32_procs_SSE4[] = { |
| nullptr, // S32_Opaque, |
| S32_Blend_BlitRow32_SSE2, // S32_Blend, |
| S32A_Opaque_BlitRow32_SSE4, // S32A_Opaque |
| S32A_Blend_BlitRow32_SSE2, // S32A_Blend, |
| }; |
| |
| SkBlitRow::Proc32 SkBlitRow::PlatformProcs32(unsigned flags) { |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE41)) { |
| return platform_32_procs_SSE4[flags]; |
| } else |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| return platform_32_procs_SSE2[flags]; |
| } else { |
| return nullptr; |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| SkBlitMask::BlitLCD16RowProc SkBlitMask::PlatformBlitRowProcs16(bool isOpaque) { |
| if (supports_simd(SK_CPU_SSE_LEVEL_SSE2)) { |
| if (isOpaque) { |
| return SkBlitLCD16OpaqueRow_SSE2; |
| } else { |
| return SkBlitLCD16Row_SSE2; |
| } |
| } else { |
| return nullptr; |
| } |
| |
| } |
| |
| SkBlitMask::RowProc SkBlitMask::PlatformRowProcs(SkColorType, SkMask::Format, RowFlags) { |
| return nullptr; |
| } |
