modified Animated GIF library

This commit is contained in:
charles 2023-08-18 11:22:12 -04:00
parent cf337dd7c5
commit 2941ac7127
4 changed files with 1549 additions and 53 deletions

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AnimatedGIF.cpp Normal file
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//
// GIF Animator
// written by Larry Bank
// bitbank@pobox.com
// Arduino port started 7/5/2020
// Original GIF code written 20+ years ago :)
// The goal of this code is to decode images up to 480x320
// using no more than 22K of RAM (if sent directly to an LCD display)
//
// Copyright 2020 BitBank Software, Inc. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//===========================================================================
#include "AnimatedGIF.h"
// Here is all of the actual code...
#include "gif.h"
//
// Memory initialization
//
int AnimatedGIF::open(uint8_t *pData, int iDataSize, GIF_DRAW_CALLBACK *pfnDraw)
{
_gif.iError = GIF_SUCCESS;
_gif.pfnRead = readMem;
_gif.pfnSeek = seekMem;
_gif.pfnDraw = pfnDraw;
_gif.pfnOpen = NULL;
_gif.pfnClose = NULL;
_gif.GIFFile.iSize = iDataSize;
_gif.GIFFile.pData = pData;
// Modified from the original library to use RAM instead of static memory
_gif.usGIFTable = (unsigned short *)malloc(4096 * sizeof(unsigned short));
if (_gif.usGIFTable == NULL)
{
// Handle memory allocation failure
return GIF_ERROR_MEMORY; // or an appropriate error code
}
return GIFInit(&_gif);
} /* open() */
int AnimatedGIF::openFLASH(uint8_t *pData, int iDataSize, GIF_DRAW_CALLBACK *pfnDraw)
{
_gif.iError = GIF_SUCCESS;
_gif.pfnRead = readFLASH;
_gif.pfnSeek = seekMem;
_gif.pfnDraw = pfnDraw;
_gif.pfnOpen = NULL;
_gif.pfnClose = NULL;
_gif.GIFFile.iSize = iDataSize;
_gif.GIFFile.pData = pData;
return GIFInit(&_gif);
} /* openFLASH() */
//
// Returns the first comment block found (if any)
//
int AnimatedGIF::getComment(char *pDest)
{
int32_t iOldPos;
iOldPos = _gif.GIFFile.iPos; // keep old position
(*_gif.pfnSeek)(&_gif.GIFFile, _gif.iCommentPos);
(*_gif.pfnRead)(&_gif.GIFFile, (uint8_t *)pDest, _gif.sCommentLen);
(*_gif.pfnSeek)(&_gif.GIFFile, iOldPos);
pDest[_gif.sCommentLen] = 0; // zero terminate the string
return (int)_gif.sCommentLen;
} /* getComment() */
//
// Allocate a block of memory to hold the entire canvas (as 8-bpp)
//
int AnimatedGIF::allocFrameBuf(GIF_ALLOC_CALLBACK *pfnAlloc)
{
if (_gif.iCanvasWidth > 0 && _gif.iCanvasHeight > 0 && _gif.pFrameBuffer == NULL)
{
// Allocate a little extra space for the current line
// as RGB565 or RGB888
int iCanvasSize = _gif.iCanvasWidth * (_gif.iCanvasHeight + 3);
_gif.pFrameBuffer = (unsigned char *)(*pfnAlloc)(iCanvasSize);
if (_gif.pFrameBuffer == NULL)
return GIF_ERROR_MEMORY;
return GIF_SUCCESS;
}
return GIF_INVALID_PARAMETER;
} /* allocFrameBuf() */
//
// Set the DRAW callback behavior to RAW (default)
// or COOKED (requires allocating a frame buffer)
//
int AnimatedGIF::setDrawType(int iType)
{
if (iType != GIF_DRAW_RAW && iType != GIF_DRAW_COOKED)
return GIF_INVALID_PARAMETER; // invalid drawing mode
_gif.ucDrawType = (uint8_t)iType;
return GIF_SUCCESS;
} /* setDrawType() */
//
// Release the memory used by the frame buffer
//
int AnimatedGIF::freeFrameBuf(GIF_FREE_CALLBACK *pfnFree)
{
if (_gif.pFrameBuffer)
{
(*pfnFree)(_gif.pFrameBuffer);
_gif.pFrameBuffer = NULL;
return GIF_SUCCESS;
}
return GIF_INVALID_PARAMETER;
} /* freeFrameBuf() */
//
// Return a pointer to the frame buffer (if it was allocated)
//
uint8_t *AnimatedGIF::getFrameBuf()
{
return _gif.pFrameBuffer;
} /* getFrameBuf() */
int AnimatedGIF::getCanvasWidth()
{
return _gif.iCanvasWidth;
} /* getCanvasWidth() */
int AnimatedGIF::getCanvasHeight()
{
return _gif.iCanvasHeight;
} /* getCanvasHeight() */
int AnimatedGIF::getInfo(GIFINFO *pInfo)
{
return GIF_getInfo(&_gif, pInfo);
} /* getInfo() */
int AnimatedGIF::getLastError()
{
return _gif.iError;
} /* getLastError() */
//
// File (SD/MMC) based initialization
//
int AnimatedGIF::open(const char *szFilename, GIF_OPEN_CALLBACK *pfnOpen, GIF_CLOSE_CALLBACK *pfnClose, GIF_READ_CALLBACK *pfnRead, GIF_SEEK_CALLBACK *pfnSeek, GIF_DRAW_CALLBACK *pfnDraw)
{
_gif.iError = GIF_SUCCESS;
_gif.pfnRead = pfnRead;
_gif.pfnSeek = pfnSeek;
_gif.pfnDraw = pfnDraw;
_gif.pfnOpen = pfnOpen;
_gif.pfnClose = pfnClose;
_gif.GIFFile.fHandle = (*pfnOpen)(szFilename, &_gif.GIFFile.iSize);
if (_gif.GIFFile.fHandle == NULL)
{
_gif.iError = GIF_FILE_NOT_OPEN;
return 0;
}
return GIFInit(&_gif);
} /* open() */
void AnimatedGIF::close()
{
if (_gif.pfnClose)
(*_gif.pfnClose)(_gif.GIFFile.fHandle);
// Modified from the original library
free(_gif.usGIFTable);
_gif.usGIFTable = NULL;
} /* close() */
void AnimatedGIF::reset()
{
(*_gif.pfnSeek)(&_gif.GIFFile, 0);
} /* reset() */
void AnimatedGIF::begin(unsigned char ucPaletteType)
{
memset(&_gif, 0, sizeof(_gif));
if (ucPaletteType != GIF_PALETTE_RGB565_LE && ucPaletteType != GIF_PALETTE_RGB565_BE && ucPaletteType != GIF_PALETTE_RGB888)
_gif.iError = GIF_INVALID_PARAMETER;
_gif.ucPaletteType = ucPaletteType;
_gif.ucDrawType = GIF_DRAW_RAW; // assume RAW pixel handling
_gif.pFrameBuffer = NULL;
} /* begin() */
//
// Play a single frame
// returns:
// 1 = good result and more frames exist
// 0 = no more frames exist, a frame may or may not have been played: use getLastError() and look for GIF_SUCCESS to know if a frame was played
// -1 = error
int AnimatedGIF::playFrame(bool bSync, int *delayMilliseconds, void *pUser)
{
int rc;
#if !defined(__MACH__) && !defined(__LINUX__)
long lTime = millis();
#endif
if (_gif.GIFFile.iPos >= _gif.GIFFile.iSize - 1) // no more data exists
{
(*_gif.pfnSeek)(&_gif.GIFFile, 0); // seek to start
}
if (GIFParseInfo(&_gif, 0))
{
_gif.pUser = pUser;
if (_gif.iError == GIF_EMPTY_FRAME) // don't try to decode it
return 0;
rc = DecodeLZW(&_gif, 0);
if (rc != 0) // problem
return -1;
}
else
{
// The file is "malformed" in that there is a bunch of non-image data after
// the last frame. Return as if all is well, though if needed getLastError()
// can be used to see if a frame was actually processed:
// GIF_SUCCESS -> frame processed, GIF_EMPTY_FRAME -> no frame processed
if (_gif.iError == GIF_EMPTY_FRAME)
{
if (delayMilliseconds)
*delayMilliseconds = 0;
return 0;
}
return -1; // error parsing the frame info, we may be at the end of the file
}
// Return 1 for more frames or 0 if this was the last frame
if (bSync)
{
#if !defined(__MACH__) && !defined(__LINUX__)
lTime = millis() - lTime;
if (lTime < _gif.iFrameDelay) // need to pause a bit
delay(_gif.iFrameDelay - lTime);
#endif // __LINUX__
}
if (delayMilliseconds) // if not NULL, return the frame delay time
*delayMilliseconds = _gif.iFrameDelay;
return (_gif.GIFFile.iPos < _gif.GIFFile.iSize - 10);
} /* playFrame() */

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// Copyright 2020 BitBank Software, Inc. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//===========================================================================
#ifndef __ANIMATEDGIF__
#define __ANIMATEDGIF__
#if defined( PICO_BUILD ) || defined( __MACH__ ) || defined( __LINUX__ ) || defined( __MCUXPRESSO )
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#define memcpy_P memcpy
#define PROGMEM
#else
#include <Arduino.h>
#endif
//
// GIF Animator
// Written by Larry Bank
// Copyright (c) 2020 BitBank Software, Inc.
// bitbank@pobox.com
//
// Designed to decode images up to 480x320
// using less than 22K of RAM
//
/* GIF Defines and variables */
#define MAX_CHUNK_SIZE 255
#define LZW_BUF_SIZE (6*MAX_CHUNK_SIZE)
#define LZW_HIGHWATER (4*MAX_CHUNK_SIZE)
#ifdef __LINUX__
#define MAX_WIDTH 2048
#else
#define MAX_WIDTH 320
#endif // __LINUX__
#define FILE_BUF_SIZE 4096
#define PIXEL_FIRST 0
#define PIXEL_LAST 4096
#define LINK_UNUSED 5911 // 0x1717 to use memset
#define LINK_END 5912
#define MAX_HASH 5003
#define MAXMAXCODE 4096
enum {
GIF_PALETTE_RGB565_LE = 0, // little endian (default)
GIF_PALETTE_RGB565_BE, // big endian
GIF_PALETTE_RGB888 // original 24-bpp entries
};
// for compatibility with older code
#define LITTLE_ENDIAN_PIXELS GIF_PALETTE_RGB565_LE
#define BIG_ENDIAN_PIXELS GIF_PALETTE_RGB565_BE
//
// Draw callback pixel type
// RAW = 8-bit palettized pixels requiring transparent pixel handling
// COOKED = 16 or 24-bpp fully rendered pixels ready for display
//
enum {
GIF_DRAW_RAW = 0,
GIF_DRAW_COOKED
};
enum {
GIF_SUCCESS = 0,
GIF_DECODE_ERROR,
GIF_TOO_WIDE,
GIF_INVALID_PARAMETER,
GIF_UNSUPPORTED_FEATURE,
GIF_FILE_NOT_OPEN,
GIF_EARLY_EOF,
GIF_EMPTY_FRAME,
GIF_BAD_FILE,
GIF_ERROR_MEMORY
};
typedef struct gif_file_tag
{
int32_t iPos; // current file position
int32_t iSize; // file size
uint8_t *pData; // memory file pointer
void * fHandle; // class pointer to File/SdFat or whatever you want
} GIFFILE;
typedef struct gif_info_tag
{
int32_t iFrameCount; // total frames in file
int32_t iDuration; // duration of animation in milliseconds
int32_t iMaxDelay; // maximum frame delay
int32_t iMinDelay; // minimum frame delay
} GIFINFO;
typedef struct gif_draw_tag
{
int iX, iY; // Corner offset of this frame on the canvas
int y; // current line being drawn (0 = top line of image)
int iWidth, iHeight; // size of this frame
void *pUser; // user supplied pointer
uint8_t *pPixels; // 8-bit source pixels for this line
uint16_t *pPalette; // little or big-endian RGB565 palette entries (default)
uint8_t *pPalette24; // RGB888 palette (optional)
uint8_t ucTransparent; // transparent color
uint8_t ucHasTransparency; // flag indicating the transparent color is in use
uint8_t ucDisposalMethod; // frame disposal method
uint8_t ucBackground; // background color
} GIFDRAW;
// Callback function prototypes
typedef int32_t (GIF_READ_CALLBACK)(GIFFILE *pFile, uint8_t *pBuf, int32_t iLen);
typedef int32_t (GIF_SEEK_CALLBACK)(GIFFILE *pFile, int32_t iPosition);
typedef void (GIF_DRAW_CALLBACK)(GIFDRAW *pDraw);
typedef void * (GIF_OPEN_CALLBACK)(const char *szFilename, int32_t *pFileSize);
typedef void (GIF_CLOSE_CALLBACK)(void *pHandle);
typedef void * (GIF_ALLOC_CALLBACK)(uint32_t iSize);
typedef void (GIF_FREE_CALLBACK)(void *buffer);
//
// our private structure to hold a GIF image decode state
//
typedef struct gif_image_tag
{
int iWidth, iHeight, iCanvasWidth, iCanvasHeight;
int iX, iY; // GIF corner offset
int iBpp;
int iError; // last error
int iFrameDelay; // delay in milliseconds for this frame
int iXCount, iYCount; // decoding position in image (countdown values)
int iLZWOff; // current LZW data offset
int iLZWSize; // current quantity of data in the LZW buffer
int iCommentPos; // file offset of start of comment data
short sCommentLen; // length of comment
GIF_READ_CALLBACK *pfnRead;
GIF_SEEK_CALLBACK *pfnSeek;
GIF_DRAW_CALLBACK *pfnDraw;
GIF_OPEN_CALLBACK *pfnOpen;
GIF_CLOSE_CALLBACK *pfnClose;
GIFFILE GIFFile;
void *pUser;
unsigned char *pFrameBuffer;
unsigned char *pPixels, *pOldPixels;
unsigned char ucLineBuf[MAX_WIDTH]; // current line
unsigned char ucFileBuf[FILE_BUF_SIZE]; // holds temp data and pixel stack
unsigned short pPalette[384]; // can hold RGB565 or RGB888 - set in begin()
unsigned short pLocalPalette[384]; // color palettes for GIF images
unsigned char ucLZW[LZW_BUF_SIZE]; // holds 6 chunks (6x255) of GIF LZW data packed together
// unsigned short usGIFTable[4096];
unsigned short *usGIFTable;
unsigned char ucGIFPixels[8192];
unsigned char bEndOfFrame;
unsigned char ucGIFBits, ucBackground, ucTransparent, ucCodeStart, ucMap, bUseLocalPalette;
unsigned char ucPaletteType; // RGB565 or RGB888
unsigned char ucDrawType; // RAW or COOKED
} GIFIMAGE;
#ifdef __cplusplus
//
// The GIF class wraps portable C code which does the actual work
//
class AnimatedGIF
{
public:
int open(uint8_t *pData, int iDataSize, GIF_DRAW_CALLBACK *pfnDraw);
int openFLASH(uint8_t *pData, int iDataSize, GIF_DRAW_CALLBACK *pfnDraw);
int open(const char *szFilename, GIF_OPEN_CALLBACK *pfnOpen, GIF_CLOSE_CALLBACK *pfnClose, GIF_READ_CALLBACK *pfnRead, GIF_SEEK_CALLBACK *pfnSeek, GIF_DRAW_CALLBACK *pfnDraw);
void close();
void reset();
void begin(unsigned char ucPaletteType = GIF_PALETTE_RGB565_LE);
void begin(int iEndian, unsigned char ucPaletteType) { begin(ucPaletteType); };
int playFrame(bool bSync, int *delayMilliseconds, void *pUser = NULL);
int getCanvasWidth();
int allocFrameBuf(GIF_ALLOC_CALLBACK *pfnAlloc);
int setDrawType(int iType);
int freeFrameBuf(GIF_FREE_CALLBACK *pfnFree);
uint8_t *getFrameBuf();
int getCanvasHeight();
int getInfo(GIFINFO *pInfo);
int getLastError();
int getComment(char *destBuffer);
private:
GIFIMAGE _gif;
};
#else
// C interface
int GIF_openRAM(GIFIMAGE *pGIF, uint8_t *pData, int iDataSize, GIF_DRAW_CALLBACK *pfnDraw);
int GIF_openFile(GIFIMAGE *pGIF, const char *szFilename, GIF_DRAW_CALLBACK *pfnDraw);
void GIF_close(GIFIMAGE *pGIF);
void GIF_begin(GIFIMAGE *pGIF, unsigned char ucPaletteType);
void GIF_reset(GIFIMAGE *pGIF);
int GIF_playFrame(GIFIMAGE *pGIF, int *delayMilliseconds, void *pUser);
int GIF_getCanvasWidth(GIFIMAGE *pGIF);
int GIF_getCanvasHeight(GIFIMAGE *pGIF);
int GIF_getComment(GIFIMAGE *pGIF, char *destBuffer);
int GIF_getInfo(GIFIMAGE *pGIF, GIFINFO *pInfo);
int GIF_getLastError(GIFIMAGE *pGIF);
#endif // __cplusplus
// Due to unaligned memory causing an exception, we have to do these macros the slow way
#define INTELSHORT(p) ((*p) + (*(p+1)<<8))
#define INTELLONG(p) ((*p) + (*(p+1)<<8) + (*(p+2)<<16) + (*(p+3)<<24))
#define MOTOSHORT(p) (((*(p))<<8) + (*(p+1)))
#define MOTOLONG(p) (((*p)<<24) + ((*(p+1))<<16) + ((*(p+2))<<8) + (*(p+3)))
// Must be a 32-bit target processor
#define REGISTER_WIDTH 32
#endif // __ANIMATEDGIF__

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@ -1,33 +1,38 @@
// Animated GIF with Multiple Displays // Animated GIF with Round Display
// //
// ESP32 40MHz SPI single frame rendering performance // ESP32 40MHz SPI single frame rendering performance
// Note: no DMA performance gain on smaller images or transparent pixel GIFs
//
#define USE_DMA // ESP32 ~1.25x single frame rendering performance boost for badgers.h
// Note: Do not use SPI DMA if reading GIF images from SPI SD card on same bus as TFT
#define NORMAL_SPEED // Comment out for rame rate for render speed test
#include <SPI.h> #include <SPI.h>
#include <TFT_eSPI.h> // Install this library with the Arduino IDE Library Manager #include <TFT_eSPI.h>
#include <AnimatedGIF.h> // Install this library with the Arduino IDE Library Manager #include "AnimatedGIF.h"
// Examples images
#include "images/hyperspace.h"
#include "images/nostromo.h"
#include "images/hud_1.h"
#include "images/hud_2.h"
#include "images/hud_5.h"
#include "images/hud_6.h"
#include "images/hud_7.h"
#include "images/darthvader.h" #include "images/darthvader.h"
#include "images/x_wing.h" #include "images/x_wing.h"
#include "images/hud_1.h"
#include "images/hud_6.h"
#include "images/hud_2.h"
const int NUM_DISPLAYS = 4; // Adjust this value based on the number of displays const int NUM_DISPLAYS = 6; // Adjust this value based on the number of displays
AnimatedGIF gifs[NUM_DISPLAYS]; const int CS_PINS[NUM_DISPLAYS] = {19, 22, 21,32,33,25}; // Add more pins if you have more displays
// Define CS pins for all displays AnimatedGIF gif_1;
const int CS_PINS[NUM_DISPLAYS] = {19, 22, 21, 32}; // Add more pins if you have more displays AnimatedGIF gif_2;
// const int CS_PINS[NUM_DISPLAYS] = {19, 22, 21, 32, 33}; // Add more pins if you have more displays AnimatedGIF gif_3;
AnimatedGIF gif_4;
AnimatedGIF gif_5;
AnimatedGIF gif_6;
// Define the images for all displays TFT_eSPI tft = TFT_eSPI();
const uint8_t *GIF_IMAGES[NUM_DISPLAYS] = {x_wing, darthvader, hud_6, hud_1}; // Add more images if needed
const size_t GIF_SIZES[NUM_DISPLAYS] = {sizeof(x_wing), sizeof(darthvader), sizeof(hud_6), sizeof(hud_1)}; // Add more sizes if needed
//Free Heap with 3 Animated GIF : 241248
//Free Heap with 4 Animated GIF : 217332
// ld.exe: region `dram0_0_seg' overflowed by 17664 bytes
// ld.exe: region `dram0_0_seg' overflowed by 17264 bytes
TFT_eSPI tft;
void setup() void setup()
{ {
@ -37,44 +42,49 @@ void setup()
for (int i = 0; i < NUM_DISPLAYS; i++) for (int i = 0; i < NUM_DISPLAYS; i++)
{ {
pinMode(CS_PINS[i], OUTPUT); pinMode(CS_PINS[i], OUTPUT);
digitalWrite(CS_PINS[i], HIGH); // Deselect the display digitalWrite(CS_PINS[i], LOW); // select the display
}
for (int i = 0; i < NUM_DISPLAYS; i++)
{
digitalWrite(CS_PINS[i], LOW); // Select the display
tft.fillScreen(TFT_BLACK); tft.fillScreen(TFT_BLACK);
tft.setRotation(2); // Adjust Rotation of your screen (0-3) tft.setRotation(2); // Adjust Rotation of your screen (0-3)
gifs[i].begin(BIG_ENDIAN_PIXELS);
if (!gifs[i].open((uint8_t *)GIF_IMAGES[i], GIF_SIZES[i], GIFDraw))
{
Serial.printf("Failed to open GIF%d\n", i + 1);
Serial.printf("Last Error=%d", gifs[i].getLastError());
Serial.printf("Image size=%d", sizeof(GIF_IMAGES[i]));
}
digitalWrite(CS_PINS[i], HIGH); // Deselect the display digitalWrite(CS_PINS[i], HIGH); // Deselect the display
} }
Serial.printf("Free Heap = %ld",ESP.getFreeHeap());
}
openGif(&gif_1, hyperspace, sizeof(hyperspace));
openGif(&gif_2, hud_6, sizeof(hud_6));
openGif(&gif_3, nostromo, sizeof(nostromo));
openGif(&gif_4, x_wing, sizeof(x_wing));
openGif(&gif_5, hud_2, sizeof(hud_2));
openGif(&gif_6, hud_7, sizeof(hud_7));
}
void loop() void loop()
{ {
for (int i = 0; i < NUM_DISPLAYS; i++) playGif(&gif_1, 0);
playGif(&gif_2, 1);
playGif(&gif_3, 2);
playGif(&gif_4, 3);
playGif(&gif_5, 4);
playGif(&gif_6, 5);
}
void openGif(AnimatedGIF *gif, const uint8_t *gifImage, int gifSize)
{
gif->begin(BIG_ENDIAN_PIXELS);
if (!gif->open((uint8_t *)gifImage, gifSize, GIFDraw))
{ {
digitalWrite(CS_PINS[i], LOW); // Select the display Serial.printf("Could not open gif \n");
tft.startWrite();
int res = gifs[i].playFrame(false, NULL);
if (res == 0)
{
// If no more frames are available, reset the GIF to the beginning
gifs[i].reset();
gifs[i].playFrame(false, NULL);
}
tft.endWrite();
digitalWrite(CS_PINS[i], HIGH); // Deselect the display
} }
} }
void playGif(AnimatedGIF *gif, int screenIndex)
{
digitalWrite(CS_PINS[screenIndex], LOW); // Select the display
tft.startWrite();
int res = gif->playFrame(false, NULL);
if (res == 0)
{
// If no more frames are available, reset the GIF to the beginning
gif->reset();
gif->playFrame(false, NULL);
}
tft.endWrite();
digitalWrite(CS_PINS[screenIndex], HIGH); // Deselect the display
}

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