17c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/* 27c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Copyright (C) 2011 The Android Open Source Project 37c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * 47c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Licensed under the Apache License, Version 2.0 (the "License"); 57c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * you may not use this file except in compliance with the License. 67c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * You may obtain a copy of the License at 77c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * 87c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * http://www.apache.org/licenses/LICENSE-2.0 97c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * 107c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Unless required by applicable law or agreed to in writing, software 117c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * distributed under the License is distributed on an "AS IS" BASIS, 127c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 137c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * See the License for the specific language governing permissions and 147c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * limitations under the License. 157c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi */ 167c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/** 177c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi ****************************************************************************** 187c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @file M4VIFI_RGB565toYUV420.c 197c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @brief Contain video library function 207c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @note Color Conversion Filter 217c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * -# Contains the format conversion filters from RGB565 to YUV420 227c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi ****************************************************************************** 237c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi*/ 247c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 257c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/* Prototypes of functions, and type definitions */ 267c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi#include "M4VIFI_FiltersAPI.h" 277c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/* Macro definitions */ 287c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi#include "M4VIFI_Defines.h" 297c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/* Clip table declaration */ 307c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi#include "M4VIFI_Clip.h" 317c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 327c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 337c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/** 347c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi ****************************************************************************** 357c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * M4VIFI_UInt8 M4VIFI_RGB565toYUV420 (void *pUserData, 367c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * M4VIFI_ImagePlane *pPlaneIn, 377c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * M4VIFI_ImagePlane *pPlaneOut) 387c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @brief transform RGB565 image to a YUV420 image. 397c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @note Convert RGB565 to YUV420, 407c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Loop on each row ( 2 rows by 2 rows ) 417c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Loop on each column ( 2 col by 2 col ) 427c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * Get 4 RGB samples from input data and build 4 output Y samples 437c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * and each single U & V data 447c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * end loop on col 457c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * end loop on row 467c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @param pUserData: (IN) User Specific Data 477c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @param pPlaneIn: (IN) Pointer to RGB565 Plane 487c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @param pPlaneOut: (OUT) Pointer to YUV420 buffer Plane 497c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @return M4VIFI_OK: there is no error 507c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @return M4VIFI_ILLEGAL_FRAME_HEIGHT: YUV Plane height is ODD 517c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi * @return M4VIFI_ILLEGAL_FRAME_WIDTH: YUV Plane width is ODD 527c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi ****************************************************************************** 537c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi*/ 547c9d8018755adf1857571125ba1b3598c96ea506Dharmaray KundargiM4VIFI_UInt8 M4VIFI_xVSS_RGB565toYUV420(void *pUserData, M4VIFI_ImagePlane *pPlaneIn, 557c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_ImagePlane *pPlaneOut) 567c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi{ 577c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt32 u32_width, u32_height; 587c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt32 u32_stride_Y, u32_stride2_Y, u32_stride_U, u32_stride_V; 597c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt32 u32_stride_rgb, u32_stride_2rgb; 607c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt32 u32_col, u32_row; 617c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 627c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_r00, i32_r01, i32_r10, i32_r11; 637c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_g00, i32_g01, i32_g10, i32_g11; 647c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_b00, i32_b01, i32_b10, i32_b11; 657c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_y00, i32_y01, i32_y10, i32_y11; 667c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_u00, i32_u01, i32_u10, i32_u11; 677c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_Int32 i32_v00, i32_v01, i32_v10, i32_v11; 687c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt8 *pu8_yn, *pu8_ys, *pu8_u, *pu8_v; 697c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt8 *pu8_y_data, *pu8_u_data, *pu8_v_data; 707c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt8 *pu8_rgbn_data, *pu8_rgbn; 717c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt16 u16_pix1, u16_pix2, u16_pix3, u16_pix4; 727c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi M4VIFI_UInt8 count_null=0; 737c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 747c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Check planes height are appropriate */ 757c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if( (pPlaneIn->u_height != pPlaneOut[0].u_height) || 767c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi (pPlaneOut[0].u_height != (pPlaneOut[1].u_height<<1)) || 777c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi (pPlaneOut[0].u_height != (pPlaneOut[2].u_height<<1))) 787c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 797c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi return M4VIFI_ILLEGAL_FRAME_HEIGHT; 807c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 817c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 827c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Check planes width are appropriate */ 837c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if( (pPlaneIn->u_width != pPlaneOut[0].u_width) || 847c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi (pPlaneOut[0].u_width != (pPlaneOut[1].u_width<<1)) || 857c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi (pPlaneOut[0].u_width != (pPlaneOut[2].u_width<<1))) 867c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 877c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi return M4VIFI_ILLEGAL_FRAME_WIDTH; 887c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 897c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 907c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Set the pointer to the beginning of the output data buffers */ 917c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_y_data = pPlaneOut[0].pac_data + pPlaneOut[0].u_topleft; 927c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_u_data = pPlaneOut[1].pac_data + pPlaneOut[1].u_topleft; 937c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_v_data = pPlaneOut[2].pac_data + pPlaneOut[2].u_topleft; 947c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 957c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Set the pointer to the beginning of the input data buffers */ 967c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_rgbn_data = pPlaneIn->pac_data + pPlaneIn->u_topleft; 977c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 987c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Get the size of the output image */ 997c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_width = pPlaneOut[0].u_width; 1007c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_height = pPlaneOut[0].u_height; 1017c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1027c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Set the size of the memory jumps corresponding to row jump in each output plane */ 1037c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride_Y = pPlaneOut[0].u_stride; 1047c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride2_Y = u32_stride_Y << 1; 1057c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride_U = pPlaneOut[1].u_stride; 1067c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride_V = pPlaneOut[2].u_stride; 1077c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1087c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Set the size of the memory jumps corresponding to row jump in input plane */ 1097c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride_rgb = pPlaneIn->u_stride; 1107c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u32_stride_2rgb = u32_stride_rgb << 1; 1117c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1127c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1137c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Loop on each row of the output image, input coordinates are estimated from output ones */ 1147c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Two YUV rows are computed at each pass */ 1157c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi for (u32_row = u32_height ;u32_row != 0; u32_row -=2) 1167c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1177c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Current Y plane row pointers */ 1187c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_yn = pu8_y_data; 1197c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Next Y plane row pointers */ 1207c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_ys = pu8_yn + u32_stride_Y; 1217c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Current U plane row pointer */ 1227c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_u = pu8_u_data; 1237c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Current V plane row pointer */ 1247c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_v = pu8_v_data; 1257c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1267c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_rgbn = pu8_rgbn_data; 1277c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1287c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Loop on each column of the output image */ 1297c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi for (u32_col = u32_width; u32_col != 0 ; u32_col -=2) 1307c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1317c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Get four RGB 565 samples from input data */ 1327c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u16_pix1 = *( (M4VIFI_UInt16 *) pu8_rgbn); 1337c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u16_pix2 = *( (M4VIFI_UInt16 *) (pu8_rgbn + CST_RGB_16_SIZE)); 1347c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u16_pix3 = *( (M4VIFI_UInt16 *) (pu8_rgbn + u32_stride_rgb)); 1357c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi u16_pix4 = *( (M4VIFI_UInt16 *) (pu8_rgbn + u32_stride_rgb + CST_RGB_16_SIZE)); 1367c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1377c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Unpack RGB565 to 8bit R, G, B */ 1387c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* (x,y) */ 1397c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi GET_RGB565(i32_b00,i32_g00,i32_r00,u16_pix1); 1407c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* (x+1,y) */ 1417c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi GET_RGB565(i32_b10,i32_g10,i32_r10,u16_pix2); 1427c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* (x,y+1) */ 1437c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi GET_RGB565(i32_b01,i32_g01,i32_r01,u16_pix3); 1447c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* (x+1,y+1) */ 1457c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi GET_RGB565(i32_b11,i32_g11,i32_r11,u16_pix4); 1467c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* If RGB is transparent color (0, 63, 0), we transform it to white (31,63,31) */ 1477c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if(i32_b00 == 0 && i32_g00 == 63 && i32_r00 == 0) 1487c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1497c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_b00 = 31; 1507c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_r00 = 31; 1517c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 1527c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if(i32_b10 == 0 && i32_g10 == 63 && i32_r10 == 0) 1537c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1547c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_b10 = 31; 1557c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_r10 = 31; 1567c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 1577c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if(i32_b01 == 0 && i32_g01 == 63 && i32_r01 == 0) 1587c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1597c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_b01 = 31; 1607c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_r01 = 31; 1617c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 1627c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi if(i32_b11 == 0 && i32_g11 == 63 && i32_r11 == 0) 1637c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi { 1647c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_b11 = 31; 1657c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_r11 = 31; 1667c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } 1677c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Convert RGB value to YUV */ 1687c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_u00 = U16(i32_r00, i32_g00, i32_b00); 1697c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_v00 = V16(i32_r00, i32_g00, i32_b00); 1707c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* luminance value */ 1717c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_y00 = Y16(i32_r00, i32_g00, i32_b00); 1727c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1737c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_u10 = U16(i32_r10, i32_g10, i32_b10); 1747c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_v10 = V16(i32_r10, i32_g10, i32_b10); 1757c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* luminance value */ 1767c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_y10 = Y16(i32_r10, i32_g10, i32_b10); 1777c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1787c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_u01 = U16(i32_r01, i32_g01, i32_b01); 1797c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_v01 = V16(i32_r01, i32_g01, i32_b01); 1807c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* luminance value */ 1817c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_y01 = Y16(i32_r01, i32_g01, i32_b01); 1827c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1837c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_u11 = U16(i32_r11, i32_g11, i32_b11); 1847c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_v11 = V16(i32_r11, i32_g11, i32_b11); 1857c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* luminance value */ 1867c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi i32_y11 = Y16(i32_r11, i32_g11, i32_b11); 1877c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 1887c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Store luminance data */ 1897c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_yn[0] = (M4VIFI_UInt8)i32_y00; 1907c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_yn[1] = (M4VIFI_UInt8)i32_y10; 1917c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_ys[0] = (M4VIFI_UInt8)i32_y01; 1927c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_ys[1] = (M4VIFI_UInt8)i32_y11; 1937c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi *pu8_u = (M4VIFI_UInt8)((i32_u00 + i32_u01 + i32_u10 + i32_u11 + 2) >> 2); 1947c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi *pu8_v = (M4VIFI_UInt8)((i32_v00 + i32_v01 + i32_v10 + i32_v11 + 2) >> 2); 1957c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Prepare for next column */ 1967c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_rgbn += (CST_RGB_16_SIZE<<1); 1977c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Update current Y plane line pointer*/ 1987c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_yn += 2; 1997c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Update next Y plane line pointer*/ 2007c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_ys += 2; 2017c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Update U plane line pointer*/ 2027c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_u ++; 2037c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Update V plane line pointer*/ 2047c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_v ++; 2057c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } /* End of horizontal scanning */ 2067c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 2077c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi /* Prepare pointers for the next row */ 2087c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_y_data += u32_stride2_Y; 2097c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_u_data += u32_stride_U; 2107c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_v_data += u32_stride_V; 2117c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi pu8_rgbn_data += u32_stride_2rgb; 2127c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 2137c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 2147c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi } /* End of vertical scanning */ 2157c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 2167c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi return M4VIFI_OK; 2177c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi} 2187c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi/* End of file M4VIFI_RGB565toYUV420.c */ 2197c9d8018755adf1857571125ba1b3598c96ea506Dharmaray Kundargi 220