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flutter_flutter/sky/engine/platform/graphics/cpu/arm/WebGLImageConversionNEON.h

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/*
* Copyright (C) 2012 Gabor Rapcsanyi (rgabor@inf.u-szeged.hu), University of Szeged
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SKY_ENGINE_PLATFORM_GRAPHICS_CPU_ARM_WEBGLIMAGECONVERSIONNEON_H_
#define SKY_ENGINE_PLATFORM_GRAPHICS_CPU_ARM_WEBGLIMAGECONVERSIONNEON_H_
#if HAVE(ARM_NEON_INTRINSICS)
#include <arm_neon.h>
namespace blink {
namespace SIMD {
ALWAYS_INLINE void unpackOneRowOfRGBA16LittleToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 16;
unsigned componentsSize = componentsPerRow - tailComponents;
const uint8_t* src = reinterpret_cast<const uint8_t*>(source);
for (unsigned i = 0; i < componentsSize; i += 16) {
uint8x16x2_t components = vld2q_u8(src + i * 2);
vst1q_u8(destination + i, components.val[1]);
}
source += componentsSize;
destination += componentsSize;
pixelsPerRow = tailComponents / 4;
}
ALWAYS_INLINE void unpackOneRowOfRGB16LittleToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 3;
unsigned tailComponents = componentsPerRow % 24;
unsigned componentsSize = componentsPerRow - tailComponents;
uint8x8_t componentA = vdup_n_u8(0xFF);
for (unsigned i = 0; i < componentsSize; i += 24) {
uint16x8x3_t RGB16 = vld3q_u16(source + i);
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(RGB16.val[0], 8));
uint8x8_t componentG = vqmovn_u16(vshrq_n_u16(RGB16.val[1], 8));
uint8x8_t componentB = vqmovn_u16(vshrq_n_u16(RGB16.val[2], 8));
uint8x8x4_t RGBA8 = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination, RGBA8);
destination += 32;
}
source += componentsSize;
pixelsPerRow = tailComponents / 3;
}
ALWAYS_INLINE void unpackOneRowOfARGB16LittleToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 32;
unsigned componentsSize = componentsPerRow - tailComponents;
for (unsigned i = 0; i < componentsSize; i += 32) {
uint16x8x4_t ARGB16 = vld4q_u16(source + i);
uint8x8_t componentA = vqmovn_u16(vshrq_n_u16(ARGB16.val[0], 8));
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(ARGB16.val[1], 8));
uint8x8_t componentG = vqmovn_u16(vshrq_n_u16(ARGB16.val[2], 8));
uint8x8_t componentB = vqmovn_u16(vshrq_n_u16(ARGB16.val[3], 8));
uint8x8x4_t RGBA8 = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination + i, RGBA8);
}
source += componentsSize;
destination += componentsSize;
pixelsPerRow = tailComponents / 4;
}
ALWAYS_INLINE void unpackOneRowOfBGRA16LittleToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 32;
unsigned componentsSize = componentsPerRow - tailComponents;
for (unsigned i = 0; i < componentsSize; i += 32) {
uint16x8x4_t ARGB16 = vld4q_u16(source + i);
uint8x8_t componentB = vqmovn_u16(vshrq_n_u16(ARGB16.val[0], 8));
uint8x8_t componentG = vqmovn_u16(vshrq_n_u16(ARGB16.val[1], 8));
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(ARGB16.val[2], 8));
uint8x8_t componentA = vqmovn_u16(vshrq_n_u16(ARGB16.val[3], 8));
uint8x8x4_t RGBA8 = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination + i, RGBA8);
}
source += componentsSize;
destination += componentsSize;
pixelsPerRow = tailComponents / 4;
}
ALWAYS_INLINE void unpackOneRowOfRGBA4444ToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned tailPixels = pixelsPerRow % 8;
unsigned pixelSize = pixelsPerRow - tailPixels;
uint16x8_t immediate0x0f = vdupq_n_u16(0x0F);
for (unsigned i = 0; i < pixelSize; i += 8) {
uint16x8_t eightPixels = vld1q_u16(source + i);
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(eightPixels, 12));
uint8x8_t componentG = vqmovn_u16(vandq_u16(vshrq_n_u16(eightPixels, 8), immediate0x0f));
uint8x8_t componentB = vqmovn_u16(vandq_u16(vshrq_n_u16(eightPixels, 4), immediate0x0f));
uint8x8_t componentA = vqmovn_u16(vandq_u16(eightPixels, immediate0x0f));
componentR = vorr_u8(vshl_n_u8(componentR, 4), componentR);
componentG = vorr_u8(vshl_n_u8(componentG, 4), componentG);
componentB = vorr_u8(vshl_n_u8(componentB, 4), componentB);
componentA = vorr_u8(vshl_n_u8(componentA, 4), componentA);
uint8x8x4_t destComponents = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination, destComponents);
destination += 32;
}
source += pixelSize;
pixelsPerRow = tailPixels;
}
ALWAYS_INLINE void packOneRowOfRGBA8ToUnsignedShort4444(const uint8_t*& source, uint16_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 32;
unsigned componentsSize = componentsPerRow - tailComponents;
uint8_t* dst = reinterpret_cast<uint8_t*>(destination);
uint8x8_t immediate0xf0 = vdup_n_u8(0xF0);
for (unsigned i = 0; i < componentsSize; i += 32) {
uint8x8x4_t RGBA8 = vld4_u8(source + i);
uint8x8_t componentR = vand_u8(RGBA8.val[0], immediate0xf0);
uint8x8_t componentG = vshr_n_u8(vand_u8(RGBA8.val[1], immediate0xf0), 4);
uint8x8_t componentB = vand_u8(RGBA8.val[2], immediate0xf0);
uint8x8_t componentA = vshr_n_u8(vand_u8(RGBA8.val[3], immediate0xf0), 4);
uint8x8x2_t RGBA4;
RGBA4.val[0] = vorr_u8(componentB, componentA);
RGBA4.val[1] = vorr_u8(componentR, componentG);
vst2_u8(dst, RGBA4);
dst += 16;
}
source += componentsSize;
destination += componentsSize / 4;
pixelsPerRow = tailComponents / 4;
}
ALWAYS_INLINE void unpackOneRowOfRGBA5551ToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned tailPixels = pixelsPerRow % 8;
unsigned pixelSize = pixelsPerRow - tailPixels;
uint8x8_t immediate0x7 = vdup_n_u8(0x7);
uint8x8_t immediate0xff = vdup_n_u8(0xFF);
uint16x8_t immediate0x1f = vdupq_n_u16(0x1F);
uint16x8_t immediate0x1 = vdupq_n_u16(0x1);
for (unsigned i = 0; i < pixelSize; i += 8) {
uint16x8_t eightPixels = vld1q_u16(source + i);
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(eightPixels, 11));
uint8x8_t componentG = vqmovn_u16(vandq_u16(vshrq_n_u16(eightPixels, 6), immediate0x1f));
uint8x8_t componentB = vqmovn_u16(vandq_u16(vshrq_n_u16(eightPixels, 1), immediate0x1f));
uint8x8_t componentA = vqmovn_u16(vandq_u16(eightPixels, immediate0x1));
componentR = vorr_u8(vshl_n_u8(componentR, 3), vand_u8(componentR, immediate0x7));
componentG = vorr_u8(vshl_n_u8(componentG, 3), vand_u8(componentG, immediate0x7));
componentB = vorr_u8(vshl_n_u8(componentB, 3), vand_u8(componentB, immediate0x7));
componentA = vmul_u8(componentA, immediate0xff);
uint8x8x4_t destComponents = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination, destComponents);
destination += 32;
}
source += pixelSize;
pixelsPerRow = tailPixels;
}
ALWAYS_INLINE void packOneRowOfRGBA8ToUnsignedShort5551(const uint8_t*& source, uint16_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 32;
unsigned componentsSize = componentsPerRow - tailComponents;
uint8_t* dst = reinterpret_cast<uint8_t*>(destination);
uint8x8_t immediate0xf8 = vdup_n_u8(0xF8);
uint8x8_t immediate0x18 = vdup_n_u8(0x18);
for (unsigned i = 0; i < componentsSize; i += 32) {
uint8x8x4_t RGBA8 = vld4_u8(source + i);
uint8x8_t componentR = vand_u8(RGBA8.val[0], immediate0xf8);
uint8x8_t componentG3bit = vshr_n_u8(RGBA8.val[1], 5);
uint8x8_t componentG2bit = vshl_n_u8(vand_u8(RGBA8.val[1], immediate0x18), 3);
uint8x8_t componentB = vshr_n_u8(vand_u8(RGBA8.val[2], immediate0xf8), 2);
uint8x8_t componentA = vshr_n_u8(RGBA8.val[3], 7);
uint8x8x2_t RGBA5551;
RGBA5551.val[0] = vorr_u8(vorr_u8(componentG2bit, componentB), componentA);
RGBA5551.val[1] = vorr_u8(componentR, componentG3bit);
vst2_u8(dst, RGBA5551);
dst += 16;
}
source += componentsSize;
destination += componentsSize / 4;
pixelsPerRow = tailComponents / 4;
}
ALWAYS_INLINE void unpackOneRowOfRGB565ToRGBA8(const uint16_t*& source, uint8_t*& destination, unsigned& pixelsPerRow)
{
unsigned tailPixels = pixelsPerRow % 8;
unsigned pixelSize = pixelsPerRow - tailPixels;
uint16x8_t immediate0x3f = vdupq_n_u16(0x3F);
uint16x8_t immediate0x1f = vdupq_n_u16(0x1F);
uint8x8_t immediate0x3 = vdup_n_u8(0x3);
uint8x8_t immediate0x7 = vdup_n_u8(0x7);
uint8x8_t componentA = vdup_n_u8(0xFF);
for (unsigned i = 0; i < pixelSize; i += 8) {
uint16x8_t eightPixels = vld1q_u16(source + i);
uint8x8_t componentR = vqmovn_u16(vshrq_n_u16(eightPixels, 11));
uint8x8_t componentG = vqmovn_u16(vandq_u16(vshrq_n_u16(eightPixels, 5), immediate0x3f));
uint8x8_t componentB = vqmovn_u16(vandq_u16(eightPixels, immediate0x1f));
componentR = vorr_u8(vshl_n_u8(componentR, 3), vand_u8(componentR, immediate0x7));
componentG = vorr_u8(vshl_n_u8(componentG, 2), vand_u8(componentG, immediate0x3));
componentB = vorr_u8(vshl_n_u8(componentB, 3), vand_u8(componentB, immediate0x7));
uint8x8x4_t destComponents = {{componentR, componentG, componentB, componentA}};
vst4_u8(destination, destComponents);
destination += 32;
}
source += pixelSize;
pixelsPerRow = tailPixels;
}
ALWAYS_INLINE void packOneRowOfRGBA8ToUnsignedShort565(const uint8_t*& source, uint16_t*& destination, unsigned& pixelsPerRow)
{
unsigned componentsPerRow = pixelsPerRow * 4;
unsigned tailComponents = componentsPerRow % 32;
unsigned componentsSize = componentsPerRow - tailComponents;
uint8_t* dst = reinterpret_cast<uint8_t*>(destination);
uint8x8_t immediate0xf8 = vdup_n_u8(0xF8);
uint8x8_t immediate0x1c = vdup_n_u8(0x1C);
for (unsigned i = 0; i < componentsSize; i += 32) {
uint8x8x4_t RGBA8 = vld4_u8(source + i);
uint8x8_t componentR = vand_u8(RGBA8.val[0], immediate0xf8);
uint8x8_t componentGLeft = vshr_n_u8(RGBA8.val[1], 5);
uint8x8_t componentGRight = vshl_n_u8(vand_u8(RGBA8.val[1], immediate0x1c), 3);
uint8x8_t componentB = vshr_n_u8(vand_u8(RGBA8.val[2], immediate0xf8), 3);
uint8x8x2_t RGB565;
RGB565.val[0] = vorr_u8(componentGRight, componentB);
RGB565.val[1] = vorr_u8(componentR, componentGLeft);
vst2_u8(dst, RGB565);
dst += 16;
}
source += componentsSize;
destination += componentsSize / 4;
pixelsPerRow = tailComponents / 4;
}
} // namespace SIMD
} // namespace blink
#endif // HAVE(ARM_NEON_INTRINSICS)
#endif // SKY_ENGINE_PLATFORM_GRAPHICS_CPU_ARM_WEBGLIMAGECONVERSIONNEON_H_
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