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138 lines
5.3 KiB
138 lines
5.3 KiB
/* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Not a Contribution, Apache license notifications and license are retained |
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* for attribution purposes only. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include <stdint.h> |
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#include <malloc.h> |
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#include <arm_neon.h> |
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#include "hwc_delta_panel.h" |
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#define BYTE_PER_PIXEL 4 |
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#define X_LAST 392 |
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const static int X_START_TABLE[] = {0,176,168,160,152,152,144,144,136,136,136,128,128,128,120, |
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120,120,112,112,112,112,104,104,104,104,96,96,96,96,96,88, |
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88,88,88,88,80,80,80,80,80,80,72,72,72,72,72,72,64,64,64,64, |
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64,64,64,64,56,56,56,56,56,56,56,48,48,48,48,48,48,48,48,48, |
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40,40,40,40,40,40,40,40,40,40,32,32,32,32,32,32,32,32,32,32, |
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32,32,24,24,24,24,24,24,24,24,24,24,24,24,24,16,16,16,16,16, |
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16,16,16,16,16,16,16,16,16,16,16,16,8,8,8,8,8,8,8,8,8,8,8,8, |
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8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8, |
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8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,16,16,16,16,16, |
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16,16,16,16,16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24, |
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24,24,24,24,24,32,32,32,32,32,32,32,32,32,32,32,32,40,40,40, |
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40,40,40,40,40,40,40,48,48,48,48,48,48,48,48,48,56,56,56,56, |
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56,56,56,64,64,64,64,64,64,64,64,72,72,72,72,72,72,80,80,80, |
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80,80,80,88,88,88,88,88,96,96,96,96,96,104,104,104,104,112, |
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112,112,112,120,120,120,128,128,128,136,136,136,144,144,152, |
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152,160,168,176}; |
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const static int TABLE_SIZE = sizeof(X_START_TABLE) / sizeof(X_START_TABLE[0]); |
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const static uint8_t MASK[8] = {0xff, 0, 0xff, 0, 0xff, 0, 0xff, 0}; |
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/* |
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* Delta Real Panel Rending - Delta real pixel rending for Wearable device panel. |
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* pImage - Point to head of display image |
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* width - Input image width |
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* height - Input image height |
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*/ |
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void deltaPanelRendering(uint8_t *pImage, int width, int height) |
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{ |
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int x, y; |
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uint8_t *pData; |
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int byteWidth; |
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uint32_t *pPixelAbove, *pPixelCenter, *pPixelBelow, *pPixelEnd; |
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int64_t diff; |
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int xStart, xEnd; |
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const uint8x8_t MASK_8X8 = vld1_u8(MASK); |
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const uint8x8_t THREE_8X8 = vdup_n_u8(3); |
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byteWidth = width * BYTE_PER_PIXEL; |
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pData = pImage + byteWidth; |
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// center |
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for(y = 1; y < (height - 1) && y < TABLE_SIZE; y++) |
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{ |
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xStart = X_START_TABLE[y]; |
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xEnd = X_LAST - X_START_TABLE[y]; |
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pPixelCenter = ((uint32_t*)pData) + xStart; |
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pPixelEnd = ((uint32_t*)pData) + xEnd; |
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pPixelAbove = pPixelCenter - width; |
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pPixelBelow = pPixelCenter + width; |
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// process 8 pixels |
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while (pPixelCenter <= pPixelEnd) |
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{ |
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__asm__ __volatile__ ( |
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"vld4.8 {d8-d11}, [%[above]]! \n" |
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"vld4.8 {d12-d15}, [%[below]]! \n" |
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"vld4.8 {d16-d19}, [%[center]] \n" |
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#ifdef DELTA_PANEL_R |
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"vbit d12, d8, %[mask] \n" |
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#endif |
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#ifdef DELTA_PANEL_G |
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"vbit d13, d9, %[mask] \n" |
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#endif |
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#ifdef DELTA_PANEL_B |
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"vbit d14, d10, %[mask] \n" |
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#endif |
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#ifdef DELTA_PANEL_R |
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"vmovl.u8 q0, d12 \n" |
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#endif |
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#ifdef DELTA_PANEL_G |
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"vmovl.u8 q1, d13 \n" |
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#endif |
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#ifdef DELTA_PANEL_B |
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"vmovl.u8 q2, d14 \n" |
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#endif |
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#ifdef DELTA_PANEL_R |
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"vmlal.u8 q0, d16, %[three] \n" |
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#endif |
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#ifdef DELTA_PANEL_G |
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"vmlal.u8 q1, d17, %[three] \n" |
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#endif |
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#ifdef DELTA_PANEL_B |
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"vmlal.u8 q2, d18, %[three] \n" |
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#endif |
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#ifdef DELTA_PANEL_R |
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"vshrn.i16 d16, q0, #2 \n" |
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#endif |
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#ifdef DELTA_PANEL_G |
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"vshrn.i16 d17, q1, #2 \n" |
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#endif |
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#ifdef DELTA_PANEL_B |
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"vshrn.i16 d18, q2, #2 \n" |
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#endif |
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"vst4.8 {d16-d19}, [%[center]]! \n" |
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: [above]"+&r"(pPixelAbove) |
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, [below]"+&r"(pPixelBelow) |
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, [center]"+&r"(pPixelCenter) |
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: [mask]"w"(MASK_8X8) |
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, [three]"w"(THREE_8X8) |
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: "d8", "d9", "d10", "d11" |
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, "d12", "d13", "d14", "d15" |
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, "d16", "d17", "d18", "d19" |
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, "q0", "q1", "q2", "memory"); |
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} |
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pData += byteWidth; |
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} |
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}
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