217 lines
6.9 KiB
C
217 lines
6.9 KiB
C
/*********************************************************************
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* Portions COPYRIGHT 2016 STMicroelectronics *
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* Portions SEGGER Microcontroller GmbH & Co. KG *
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* Solutions for real time microcontroller applications *
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**********************************************************************
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* *
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* (c) 1996 - 2015 SEGGER Microcontroller GmbH & Co. KG *
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* *
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* Internet: www.segger.com Support: support@segger.com *
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* *
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**********************************************************************
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** emWin V5.32 - Graphical user interface for embedded applications **
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All Intellectual Property rights in the Software belongs to SEGGER.
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emWin is protected by international copyright laws. Knowledge of the
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source code may not be used to write a similar product. This file may
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only be used in accordance with the following terms:
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The software has been licensed to STMicroelectronics International
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N.V. a Dutch company with a Swiss branch and its headquarters in Plan-
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les-Ouates, Geneva, 39 Chemin du Champ des Filles, Switzerland for the
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purposes of creating libraries for ARM Cortex-M-based 32-bit microcon_
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troller products commercialized by Licensee only, sublicensed and dis_
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tributed under the terms and conditions of the End User License Agree_
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ment supplied by STMicroelectronics International N.V.
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Full source code is available at: www.segger.com
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We appreciate your understanding and fairness.
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----------------------------------------------------------------------
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File : GUIDRV_Lin_Opt_16.h
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Purpose : Optimized routines, included by GUIDRV_Lin_..._16.c
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---------------------------END-OF-HEADER------------------------------
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*/
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/**
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******************************************************************************
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* @attention
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (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.st.com/software_license_agreement_liberty_v2
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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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******************************************************************************
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*/
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/*********************************************************************
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*
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* Static functions
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* _FillRectOpt16
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*
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* Purpose:
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* Optimized filling routine for 16 bpp
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*/
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static void _FillRectOpt16(GUI_DEVICE * pDevice, int x0, int y0, int x1, int y1) {
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DRIVER_CONTEXT * pContext;
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U32 * pDest;
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U32 * pDest0;
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U32 Off, OffLine;
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int RemPixels, NumLines, RemLines, RemItems;
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U32 Data, ColorMask;
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LCD_PIXELINDEX ColorIndex;
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pContext = (DRIVER_CONTEXT *)pDevice->u.pContext;
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ColorIndex = LCD__GetColorIndex();
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Off = XY2OFF32(pContext->vxSizePhys, x0, y0);
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pDest0 = OFF2PTR32(pContext->VRAMAddr, Off);
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RemPixels = x1 - x0 + 1;
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NumLines = y1 - y0 + 1;
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OffLine = pContext->vxSizePhys >> 1;
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pDest = NULL;
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if (GUI_pContext->DrawMode & LCD_DRAWMODE_XOR) {
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//
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// First DWORD
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//
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if (x0 & 1) {
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for (RemLines = NumLines, pDest = pDest0; RemLines; RemLines--) {
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Data = READ_MEM32P(pDest);
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#if (LCD_ENDIAN_BIG == 0)
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Data ^= 0xFFFF0000;
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#else
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Data ^= 0xFFFF;
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#endif
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WRITE_MEM32P(pDest, Data);
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pDest += OffLine;
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}
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pDest0++;
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RemPixels--;
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}
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//
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// Complete DWORDS
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//
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if (RemPixels >= 2) {
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for (RemLines = NumLines; RemLines; RemLines--) {
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RemItems = RemPixels;
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pDest = pDest0 + OffLine * (RemLines - 1);
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do {
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Data = READ_MEM32P(pDest);
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Data ^= 0xFFFFFFFF;
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WRITE_MEM32P(pDest, Data);
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pDest++;
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RemItems -= 2;
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} while (RemItems >= 2);
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}
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pDest0 = pDest;
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RemPixels -= (RemPixels >> 1) << 1;
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}
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//
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// Last DWORD
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//
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if (RemPixels > 0) {
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for (RemLines = NumLines, pDest = pDest0; RemLines; RemLines--) {
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Data = READ_MEM32P(pDest);
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#if (LCD_ENDIAN_BIG == 0)
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Data ^= 0xFFFF;
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#else
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Data ^= 0xFFFF0000;
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#endif
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WRITE_MEM32P(pDest, Data);
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pDest += OffLine;
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}
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}
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} else {
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//
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// First DWORD
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//
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if (x0 & 1) {
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for (RemLines = NumLines, pDest = pDest0; RemLines; RemLines--) {
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Data = READ_MEM32P(pDest);
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#if (LCD_ENDIAN_BIG == 0)
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Data &= 0xFFFF;
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Data |= (((U32)ColorIndex) << 16);
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#else
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Data &= 0xFFFF0000;
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Data |= ColorIndex;
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#endif
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WRITE_MEM32P(pDest, Data);
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pDest += OffLine;
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}
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pDest0++;
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RemPixels--;
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}
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//
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// Complete DWORDS
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//
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ColorMask = ColorIndex * 0x00010001;
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if (RemPixels >= 16) {
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RemPixels -= 16;
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for (RemLines = NumLines; RemLines; RemLines--) {
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RemItems = RemPixels;
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pDest = pDest0 + OffLine * (RemLines - 1);
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do {
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WRITE_MEM32P(pDest, ColorMask);
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WRITE_MEM32P(pDest + 1, ColorMask);
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WRITE_MEM32P(pDest + 2, ColorMask);
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WRITE_MEM32P(pDest + 3, ColorMask);
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WRITE_MEM32P(pDest + 4, ColorMask);
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WRITE_MEM32P(pDest + 5, ColorMask);
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WRITE_MEM32P(pDest + 6, ColorMask);
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WRITE_MEM32P(pDest + 7, ColorMask);
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pDest += 8;
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RemItems -= 16;
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} while (RemItems >= 0);
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}
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pDest0 = pDest;
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RemPixels += 16;
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RemPixels -= (RemPixels >> 4) << 4;
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}
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if (RemPixels >= 2) {
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for (RemLines = NumLines; RemLines; RemLines--) {
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RemItems = RemPixels;
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pDest = pDest0 + OffLine * (RemLines - 1);
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do {
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WRITE_MEM32P(pDest, ColorMask);
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pDest++;
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RemItems -= 2;
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} while (RemItems >= 2);
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}
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pDest0 = pDest;
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RemPixels -= (RemPixels >> 1) << 1;
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}
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//
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// Last DWORD
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//
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if (RemPixels > 0) {
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for (RemLines = NumLines, pDest = pDest0; RemLines; RemLines--) {
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Data = READ_MEM32P(pDest);
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#if (LCD_ENDIAN_BIG == 0)
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Data &= 0xFFFF0000;
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Data |= ColorIndex;
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#else
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Data &= 0xFFFF;
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Data |= (((U32)ColorIndex) << 16);
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#endif
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WRITE_MEM32P(pDest, Data);
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pDest += OffLine;
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}
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}
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}
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}
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/*************************** End of file ****************************/
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