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acid-drop/lib/TFT_eSPI/Extensions/Sprite.cpp

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Initial commit
2024-05-23 22:42:03 +00:00
/**************************************************************************************
// The following class creates Sprites in RAM, graphics can then be drawn in the Sprite
// and rendered quickly onto the TFT screen. The class inherits the graphics functions
// from the TFT_eSPI class. Some functions are overridden by this class so that the
// graphics are written to the Sprite rather than the TFT.
// Coded by Bodmer, see license file in root folder
***************************************************************************************/
/***************************************************************************************
// Color bytes are swapped when writing to RAM, this introduces a small overhead but
// there is a nett performance gain by using swapped bytes.
***************************************************************************************/
/***************************************************************************************
** Function name: TFT_eSprite
** Description: Class constructor
***************************************************************************************/
TFT_eSprite::TFT_eSprite(TFT_eSPI *tft)
{
_tft = tft; // Pointer to tft class so we can call member functions
_iwidth = 0; // Initialise width and height to 0 (it does not exist yet)
_iheight = 0;
_bpp = 16;
_swapBytes = false; // Do not swap pushImage colour bytes by default
_created = false;
_vpOoB = true;
_xs = 0; // window bounds for pushColor
_ys = 0;
_xe = 0;
_ye = 0;
_xptr = 0; // pushColor coordinate
_yptr = 0;
_colorMap = nullptr;
_psram_enable = true;
// Ensure end_tft_write() does nothing in inherited functions.
lockTransaction = true;
}
/***************************************************************************************
** Function name: createSprite
** Description: Create a sprite (bitmap) of defined width and height
***************************************************************************************/
// cast returned value to (uint8_t*) for 8 bit or (uint16_t*) for 16 bit colours
void* TFT_eSprite::createSprite(int16_t w, int16_t h, uint8_t frames)
{
if ( _created ) return _img8_1;
if ( w < 1 || h < 1 ) return nullptr;
_iwidth = _dwidth = _bitwidth = w;
_iheight = _dheight = h;
cursor_x = 0;
cursor_y = 0;
// Default scroll rectangle and gap fill colour
_sx = 0;
_sy = 0;
_sw = w;
_sh = h;
_scolor = TFT_BLACK;
_img8 = (uint8_t*) callocSprite(w, h, frames);
_img8_1 = _img8;
_img8_2 = _img8;
_img = (uint16_t*) _img8;
_img4 = _img8;
if ( (_bpp == 16) && (frames > 1) ) {
_img8_2 = _img8 + (w * h * 2 + 1);
}
// ESP32 only 16bpp check
//if (esp_ptr_dma_capable(_img8_1)) Serial.println("DMA capable Sprite pointer _img8_1");
//else Serial.println("Not a DMA capable Sprite pointer _img8_1");
//if (esp_ptr_dma_capable(_img8_2)) Serial.println("DMA capable Sprite pointer _img8_2");
//else Serial.println("Not a DMA capable Sprite pointer _img8_2");
if ( (_bpp == 8) && (frames > 1) ) {
_img8_2 = _img8 + (w * h + 1);
}
if ( (_bpp == 4) && (_colorMap == nullptr)) createPalette(default_4bit_palette);
// This is to make it clear what pointer size is expected to be used
// but casting in the user sketch is needed due to the use of void*
if ( (_bpp == 1) && (frames > 1) )
{
w = (w+7) & 0xFFF8;
_img8_2 = _img8 + ( (w>>3) * h + 1 );
}
if (_img8)
{
_created = true;
rotation = 0;
setViewport(0, 0, _dwidth, _dheight);
setPivot(_iwidth/2, _iheight/2);
return _img8_1;
}
return nullptr;
}
/***************************************************************************************
** Function name: getPointer
** Description: Returns pointer to start of sprite memory area
***************************************************************************************/
void* TFT_eSprite::getPointer(void)
{
if (!_created) return nullptr;
return _img8_1;
}
/***************************************************************************************
** Function name: created
** Description: Returns true if sprite has been created
***************************************************************************************/
bool TFT_eSprite::created(void)
{
return _created;
}
/***************************************************************************************
** Function name: ~TFT_eSprite
** Description: Class destructor
***************************************************************************************/
TFT_eSprite::~TFT_eSprite(void)
{
deleteSprite();
#ifdef SMOOTH_FONT
if(fontLoaded) unloadFont();
#endif
}
/***************************************************************************************
** Function name: callocSprite
** Description: Allocate a memory area for the Sprite and return pointer
***************************************************************************************/
void* TFT_eSprite::callocSprite(int16_t w, int16_t h, uint8_t frames)
{
// Add one extra "off screen" pixel to point out-of-bounds setWindow() coordinates
// this means push/writeColor functions do not need additional bounds checks and
// hence will run faster in normal circumstances.
uint8_t* ptr8 = nullptr;
if (frames > 2) frames = 2; // Currently restricted to 2 frame buffers
if (frames < 1) frames = 1;
if (_bpp == 16)
{
#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
if ( psramFound() && _psram_enable && !_tft->DMA_Enabled)
{
ptr8 = ( uint8_t*) ps_calloc(frames * w * h + frames, sizeof(uint16_t));
//Serial.println("PSRAM");
}
else
#endif
{
ptr8 = ( uint8_t*) calloc(frames * w * h + frames, sizeof(uint16_t));
//Serial.println("Normal RAM");
}
}
else if (_bpp == 8)
{
#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
if ( psramFound() && _psram_enable ) ptr8 = ( uint8_t*) ps_calloc(frames * w * h + frames, sizeof(uint8_t));
else
#endif
ptr8 = ( uint8_t*) calloc(frames * w * h + frames, sizeof(uint8_t));
}
else if (_bpp == 4)
{
w = (w+1) & 0xFFFE; // width needs to be multiple of 2, with an extra "off screen" pixel
_iwidth = w;
#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
if ( psramFound() && _psram_enable ) ptr8 = ( uint8_t*) ps_calloc(((frames * w * h) >> 1) + frames, sizeof(uint8_t));
else
#endif
ptr8 = ( uint8_t*) calloc(((frames * w * h) >> 1) + frames, sizeof(uint8_t));
}
else // Must be 1 bpp
{
//_dwidth Display width+height in pixels always in rotation 0 orientation
//_dheight Not swapped for sprite rotations
// Note: for 1bpp _iwidth and _iheight are swapped during Sprite rotations
w = (w+7) & 0xFFF8; // width should be the multiple of 8 bits to be compatible with epdpaint
_iwidth = w; // _iwidth is rounded up to be multiple of 8, so might not be = _dwidth
_bitwidth = w; // _bitwidth will not be rotated whereas _iwidth may be
#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
if ( psramFound() && _psram_enable ) ptr8 = ( uint8_t*) ps_calloc(frames * (w>>3) * h + frames, sizeof(uint8_t));
else
#endif
ptr8 = ( uint8_t*) calloc(frames * (w>>3) * h + frames, sizeof(uint8_t));
}
return ptr8;
}
/***************************************************************************************
** Function name: createPalette (from RAM array)
** Description: Set a palette for a 4-bit per pixel sprite
***************************************************************************************/
void TFT_eSprite::createPalette(uint16_t colorMap[], uint8_t colors)
{
if (!_created) return;
if (colorMap == nullptr)
{
// Create a color map using the default FLASH map
createPalette(default_4bit_palette);
return;
}
// Allocate and clear memory for 16 color map
if (_colorMap == nullptr) _colorMap = (uint16_t *)calloc(16, sizeof(uint16_t));
if (colors > 16) colors = 16;
// Copy map colors
for (uint8_t i = 0; i < colors; i++)
{
_colorMap[i] = colorMap[i];
}
}
/***************************************************************************************
** Function name: createPalette (from FLASH array)
** Description: Set a palette for a 4-bit per pixel sprite
***************************************************************************************/
void TFT_eSprite::createPalette(const uint16_t colorMap[], uint8_t colors)
{
if (!_created) return;
if (colorMap == nullptr)
{
// Create a color map using the default FLASH map
colorMap = default_4bit_palette;
}
// Allocate and clear memory for 16 color map
if (_colorMap == nullptr) _colorMap = (uint16_t *)calloc(16, sizeof(uint16_t));
if (colors > 16) colors = 16;
// Copy map colors
for (uint8_t i = 0; i < colors; i++)
{
_colorMap[i] = pgm_read_word(colorMap++);
}
}
/***************************************************************************************
** Function name: frameBuffer
** Description: For 1 bpp Sprites, select the frame used for graphics
***************************************************************************************/
// Frames are numbered 1 and 2
void* TFT_eSprite::frameBuffer(int8_t f)
{
if (!_created) return nullptr;
if ( f == 2 ) _img8 = _img8_2;
else _img8 = _img8_1;
if (_bpp == 16) _img = (uint16_t*)_img8;
//if (_bpp == 8) _img8 = _img8;
if (_bpp == 4) _img4 = _img8;
return _img8;
}
/***************************************************************************************
** Function name: setColorDepth
** Description: Set bits per pixel for colour (1, 8 or 16)
***************************************************************************************/
void* TFT_eSprite::setColorDepth(int8_t b)
{
// Do not re-create the sprite if the colour depth does not change
if (_bpp == b) return _img8_1;
// Validate the new colour depth
if ( b > 8 ) _bpp = 16; // Bytes per pixel
else if ( b > 4 ) _bpp = 8;
else if ( b > 1 ) _bpp = 4;
else _bpp = 1;
// Can't change an existing sprite's colour depth so delete and create a new one
if (_created) {
deleteSprite();
return createSprite(_dwidth, _dheight);
}
return nullptr;
}
/***************************************************************************************
** Function name: getColorDepth
** Description: Get bits per pixel for colour (1, 8 or 16)
***************************************************************************************/
int8_t TFT_eSprite::getColorDepth(void)
{
if (_created) return _bpp;
else return 0;
}
/***************************************************************************************
** Function name: setBitmapColor
** Description: Set the 1bpp foreground foreground and background colour
***************************************************************************************/
void TFT_eSprite::setBitmapColor(uint16_t c, uint16_t b)
{
if (c == b) b = ~c;
_tft->bitmap_fg = c;
_tft->bitmap_bg = b;
}
/***************************************************************************************
** Function name: setPaletteColor
** Description: Set the 4bpp palette color at the given index
***************************************************************************************/
void TFT_eSprite::setPaletteColor(uint8_t index, uint16_t color)
{
if (_colorMap == nullptr || index > 15) return; // out of bounds
_colorMap[index] = color;
}
/***************************************************************************************
** Function name: getPaletteColor
** Description: Return the palette color at 4bpp index, or 0 on error.
***************************************************************************************/
uint16_t TFT_eSprite::getPaletteColor(uint8_t index)
{
if (_colorMap == nullptr || index > 15) return 0; // out of bounds
return _colorMap[index];
}
/***************************************************************************************
** Function name: deleteSprite
** Description: Delete the sprite to free up memory (RAM)
***************************************************************************************/
void TFT_eSprite::deleteSprite(void)
{
if (_colorMap != nullptr)
{
free(_colorMap);
_colorMap = nullptr;
}
if (_created)
{
free(_img8_1);
_img8 = nullptr;
_created = false;
_vpOoB = true; // TFT_eSPI class write() uses this to check for valid sprite
}
}
/***************************************************************************************
** Function name: pushRotated - Fast fixed point integer maths version
** Description: Push rotated Sprite to TFT screen
***************************************************************************************/
#define FP_SCALE 10
bool TFT_eSprite::pushRotated(int16_t angle, uint32_t transp)
{
if ( !_created || _tft->_vpOoB) return false;
// Bounding box parameters
int16_t min_x;
int16_t min_y;
int16_t max_x;
int16_t max_y;
// Get the bounding box of this rotated source Sprite relative to Sprite pivot
if ( !getRotatedBounds(angle, &min_x, &min_y, &max_x, &max_y) ) return false;
uint16_t sline_buffer[max_x - min_x + 1];
int32_t xt = min_x - _tft->_xPivot;
int32_t yt = min_y - _tft->_yPivot;
uint32_t xe = _dwidth << FP_SCALE;
uint32_t ye = _dheight << FP_SCALE;
uint16_t tpcolor = (uint16_t)transp;
if (transp != 0x00FFFFFF) {
if (_bpp == 4) tpcolor = _colorMap[transp & 0x0F];
tpcolor = tpcolor>>8 | tpcolor<<8; // Working with swapped color bytes
}
_tft->startWrite(); // Avoid transaction overhead for every tft pixel
// Scan destination bounding box and fetch transformed pixels from source Sprite
for (int32_t y = min_y; y <= max_y; y++, yt++) {
int32_t x = min_x;
uint32_t xs = (_cosra * xt - (_sinra * yt - (_xPivot << FP_SCALE)) + (1 << (FP_SCALE - 1)));
uint32_t ys = (_sinra * xt + (_cosra * yt + (_yPivot << FP_SCALE)) + (1 << (FP_SCALE - 1)));
while ((xs >= xe || ys >= ye) && x < max_x) { x++; xs += _cosra; ys += _sinra; }
if (x == max_x) continue;
uint32_t pixel_count = 0;
do {
uint32_t rp;
int32_t xp = xs >> FP_SCALE;
int32_t yp = ys >> FP_SCALE;
if (_bpp == 16) {rp = _img[xp + yp * _iwidth]; }
else { rp = readPixel(xp, yp); rp = (uint16_t)(rp>>8 | rp<<8); }
if (transp != 0x00FFFFFF && tpcolor == rp) {
if (pixel_count) {
// TFT window is already clipped, so this is faster than pushImage()
_tft->setWindow(x - pixel_count, y, x - 1, y);
_tft->pushPixels(sline_buffer, pixel_count);
pixel_count = 0;
}
}
else {
sline_buffer[pixel_count++] = rp;
}
} while (++x < max_x && (xs += _cosra) < xe && (ys += _sinra) < ye);
if (pixel_count) {
// TFT window is already clipped, so this is faster than pushImage()
_tft->setWindow(x - pixel_count, y, x - 1, y);
_tft->pushPixels(sline_buffer, pixel_count);
}
}
_tft->endWrite(); // End transaction
return true;
}
/***************************************************************************************
** Function name: pushRotated - Fast fixed point integer maths version
** Description: Push a rotated copy of the Sprite to another Sprite
***************************************************************************************/
// Not compatible with 4bpp
bool TFT_eSprite::pushRotated(TFT_eSprite *spr, int16_t angle, uint32_t transp)
{
if ( !_created || _bpp == 4) return false; // Check this Sprite is created
if ( !spr->_created || spr->_bpp == 4) return false; // Ckeck destination Sprite is created
// Bounding box parameters
int16_t min_x;
int16_t min_y;
int16_t max_x;
int16_t max_y;
// Get the bounding box of this rotated source Sprite
if ( !getRotatedBounds(spr, angle, &min_x, &min_y, &max_x, &max_y) ) return false;
uint16_t sline_buffer[max_x - min_x + 1];
int32_t xt = min_x - spr->_xPivot;
int32_t yt = min_y - spr->_yPivot;
uint32_t xe = _dwidth << FP_SCALE;
uint32_t ye = _dheight << FP_SCALE;
uint16_t tpcolor = (uint16_t)transp;
if (transp != 0x00FFFFFF) {
if (_bpp == 4) tpcolor = _colorMap[transp & 0x0F];
tpcolor = tpcolor>>8 | tpcolor<<8; // Working with swapped color bytes
}
bool oldSwapBytes = spr->getSwapBytes();
spr->setSwapBytes(false);
// Scan destination bounding box and fetch transformed pixels from source Sprite
for (int32_t y = min_y; y <= max_y; y++, yt++) {
int32_t x = min_x;
uint32_t xs = (_cosra * xt - (_sinra * yt - (_xPivot << FP_SCALE)) + (1 << (FP_SCALE - 1)));
uint32_t ys = (_sinra * xt + (_cosra * yt + (_yPivot << FP_SCALE)) + (1 << (FP_SCALE - 1)));
while ((xs >= xe || ys >= ye) && x < max_x) { x++; xs += _cosra; ys += _sinra; }
if (x == max_x) continue;
uint32_t pixel_count = 0;
do {
uint32_t rp;
int32_t xp = xs >> FP_SCALE;
int32_t yp = ys >> FP_SCALE;
if (_bpp == 16) rp = _img[xp + yp * _iwidth];
else { rp = readPixel(xp, yp); rp = (uint16_t)(rp>>8 | rp<<8); }
if (transp != 0x00FFFFFF && tpcolor == rp) {
if (pixel_count) {
spr->pushImage(x - pixel_count, y, pixel_count, 1, sline_buffer);
pixel_count = 0;
}
}
else {
sline_buffer[pixel_count++] = rp;
}
} while (++x < max_x && (xs += _cosra) < xe && (ys += _sinra) < ye);
if (pixel_count) spr->pushImage(x - pixel_count, y, pixel_count, 1, sline_buffer);
}
spr->setSwapBytes(oldSwapBytes);
return true;
}
/***************************************************************************************
** Function name: getRotatedBounds
** Description: Get TFT bounding box of a rotated Sprite wrt pivot
***************************************************************************************/
bool TFT_eSprite::getRotatedBounds(int16_t angle, int16_t *min_x, int16_t *min_y,
int16_t *max_x, int16_t *max_y)
{
// Get the bounding box of this rotated source Sprite relative to Sprite pivot
getRotatedBounds(angle, width(), height(), _xPivot, _yPivot, min_x, min_y, max_x, max_y);
// Move bounding box so source Sprite pivot coincides with TFT pivot
*min_x += _tft->_xPivot;
*max_x += _tft->_xPivot;
*min_y += _tft->_yPivot;
*max_y += _tft->_yPivot;
// Return if bounding box is outside of TFT viewport
if (*min_x > _tft->_vpW) return false;
if (*min_y > _tft->_vpH) return false;
if (*max_x < _tft->_vpX) return false;
if (*max_y < _tft->_vpY) return false;
// Clip bounding box to be within TFT viewport
if (*min_x < _tft->_vpX) *min_x = _tft->_vpX;
if (*min_y < _tft->_vpY) *min_y = _tft->_vpY;
if (*max_x > _tft->_vpW) *max_x = _tft->_vpW;
if (*max_y > _tft->_vpH) *max_y = _tft->_vpH;
return true;
}
/***************************************************************************************
** Function name: getRotatedBounds
** Description: Get destination Sprite bounding box of a rotated Sprite wrt pivot
***************************************************************************************/
bool TFT_eSprite::getRotatedBounds(TFT_eSprite *spr, int16_t angle, int16_t *min_x, int16_t *min_y,
int16_t *max_x, int16_t *max_y)
{
// Get the bounding box of this rotated source Sprite relative to Sprite pivot
getRotatedBounds(angle, width(), height(), _xPivot, _yPivot, min_x, min_y, max_x, max_y);
// Move bounding box so source Sprite pivot coincides with destination Sprite pivot
*min_x += spr->_xPivot;
*max_x += spr->_xPivot;
*min_y += spr->_yPivot;
*max_y += spr->_yPivot;
// Test only to show bounding box
// spr->fillSprite(TFT_BLACK);
// spr->drawRect(min_x, min_y, max_x - min_x + 1, max_y - min_y + 1, TFT_GREEN);
// Return if bounding box is completely outside of destination Sprite
if (*min_x > spr->width()) return true;
if (*min_y > spr->height()) return true;
if (*max_x < 0) return true;
if (*max_y < 0) return true;
// Clip bounding box to Sprite boundaries
// Clipping to a viewport will be done by destination Sprite pushImage function
if (*min_x < 0) min_x = 0;
if (*min_y < 0) min_y = 0;
if (*max_x > spr->width()) *max_x = spr->width();
if (*max_y > spr->height()) *max_y = spr->height();
return true;
}
/***************************************************************************************
** Function name: rotatedBounds
** Description: Get bounding box of a rotated Sprite wrt pivot
***************************************************************************************/
void TFT_eSprite::getRotatedBounds(int16_t angle, int16_t w, int16_t h, int16_t xp, int16_t yp,
int16_t *min_x, int16_t *min_y, int16_t *max_x, int16_t *max_y)
{
// Trig values for the rotation
float radAngle = -angle * 0.0174532925; // Convert degrees to radians
float sina = sin(radAngle);
float cosa = cos(radAngle);
w -= xp; // w is now right edge coordinate relative to xp
h -= yp; // h is now bottom edge coordinate relative to yp
// Calculate new corner coordinates
int16_t x0 = -xp * cosa - yp * sina;
int16_t y0 = xp * sina - yp * cosa;
int16_t x1 = w * cosa - yp * sina;
int16_t y1 = -w * sina - yp * cosa;
int16_t x2 = h * sina + w * cosa;
int16_t y2 = h * cosa - w * sina;
int16_t x3 = h * sina - xp * cosa;
int16_t y3 = h * cosa + xp * sina;
// Find bounding box extremes, enlarge box to accomodate rounding errors
*min_x = x0-2;
if (x1 < *min_x) *min_x = x1-2;
if (x2 < *min_x) *min_x = x2-2;
if (x3 < *min_x) *min_x = x3-2;
*max_x = x0+2;
if (x1 > *max_x) *max_x = x1+2;
if (x2 > *max_x) *max_x = x2+2;
if (x3 > *max_x) *max_x = x3+2;
*min_y = y0-2;
if (y1 < *min_y) *min_y = y1-2;
if (y2 < *min_y) *min_y = y2-2;
if (y3 < *min_y) *min_y = y3-2;
*max_y = y0+2;
if (y1 > *max_y) *max_y = y1+2;
if (y2 > *max_y) *max_y = y2+2;
if (y3 > *max_y) *max_y = y3+2;
_sinra = round(sina * (1<<FP_SCALE));
_cosra = round(cosa * (1<<FP_SCALE));
}
/***************************************************************************************
** Function name: pushSprite
** Description: Push the sprite to the TFT at x, y
***************************************************************************************/
void TFT_eSprite::pushSprite(int32_t x, int32_t y)
{
if (!_created) return;
if (_bpp == 16)
{
bool oldSwapBytes = _tft->getSwapBytes();
_tft->setSwapBytes(false);
_tft->pushImage(x, y, _dwidth, _dheight, _img );
_tft->setSwapBytes(oldSwapBytes);
}
else if (_bpp == 4)
{
_tft->pushImage(x, y, _dwidth, _dheight, _img4, false, _colorMap);
}
else _tft->pushImage(x, y, _dwidth, _dheight, _img8, (bool)(_bpp == 8));
}
/***************************************************************************************
** Function name: pushSprite
** Description: Push the sprite to the TFT at x, y with transparent colour
***************************************************************************************/
void TFT_eSprite::pushSprite(int32_t x, int32_t y, uint16_t transp)
{
if (!_created) return;
if (_bpp == 16)
{
bool oldSwapBytes = _tft->getSwapBytes();
_tft->setSwapBytes(false);
_tft->pushImage(x, y, _dwidth, _dheight, _img, transp );
_tft->setSwapBytes(oldSwapBytes);
}
else if (_bpp == 8)
{
transp = (uint8_t)((transp & 0xE000)>>8 | (transp & 0x0700)>>6 | (transp & 0x0018)>>3);
_tft->pushImage(x, y, _dwidth, _dheight, _img8, (uint8_t)transp, (bool)true);
}
else if (_bpp == 4)
{
_tft->pushImage(x, y, _dwidth, _dheight, _img4, (uint8_t)(transp & 0x0F), false, _colorMap);
}
else _tft->pushImage(x, y, _dwidth, _dheight, _img8, 0, (bool)false);
}
/***************************************************************************************
** Function name: pushToSprite
** Description: Push the sprite to another sprite at x, y
***************************************************************************************/
// Note: The following sprite to sprite colour depths are currently supported:
// Source Destination
// 16bpp -> 16bpp
// 16bpp -> 8bpp
// 8bpp -> 8bpp
// 4bpp -> 4bpp (note: color translation depends on the 2 sprites palette colors)
// 1bpp -> 1bpp (note: color translation depends on the 2 sprites bitmap colors)
bool TFT_eSprite::pushToSprite(TFT_eSprite *dspr, int32_t x, int32_t y)
{
if (!_created) return false;
if (!dspr->created()) return false;
// Check destination sprite compatibility
int8_t ds_bpp = dspr->getColorDepth();
if (_bpp == 16 && ds_bpp != 16 && ds_bpp != 8) return false;
if (_bpp == 8 && ds_bpp != 8) return false;
if (_bpp == 4 && ds_bpp != 4) return false;
if (_bpp == 1 && ds_bpp != 1) return false;
bool oldSwapBytes = dspr->getSwapBytes();
dspr->setSwapBytes(false);
dspr->pushImage(x, y, _dwidth, _dheight, _img, _bpp);
dspr->setSwapBytes(oldSwapBytes);
return true;
}
/***************************************************************************************
** Function name: pushToSprite
** Description: Push the sprite to another sprite at x, y with transparent colour
***************************************************************************************/
// Note: The following sprite to sprite colour depths are currently supported:
// Source Destination
// 16bpp -> 16bpp
// 16bpp -> 8bpp
// 8bpp -> 8bpp
// 1bpp -> 1bpp
bool TFT_eSprite::pushToSprite(TFT_eSprite *dspr, int32_t x, int32_t y, uint16_t transp)
{
if ( !_created || !dspr->_created) return false; // Check Sprites exist
// Check destination sprite compatibility
int8_t ds_bpp = dspr->getColorDepth();
if (_bpp == 16 && ds_bpp != 16 && ds_bpp != 8) return false;
if (_bpp == 8 && ds_bpp != 8) return false;
if (_bpp == 4 || ds_bpp == 4) return false;
if (_bpp == 1 && ds_bpp != 1) return false;
bool oldSwapBytes = dspr->getSwapBytes();
uint16_t sline_buffer[width()];
transp = transp>>8 | transp<<8;
// Scan destination bounding box and fetch transformed pixels from source Sprite
for (int32_t ys = 0; ys < height(); ys++) {
int32_t ox = x;
uint32_t pixel_count = 0;
for (int32_t xs = 0; xs < width(); xs++) {
uint16_t rp = 0;
if (_bpp == 16) rp = _img[xs + ys * width()];
else { rp = readPixel(xs, ys); rp = rp>>8 | rp<<8; }
//dspr->drawPixel(xs, ys, rp);
if (transp == rp) {
if (pixel_count) {
dspr->pushImage(ox, y, pixel_count, 1, sline_buffer, _bpp);
ox += pixel_count;
pixel_count = 0;
}
ox++;
}
else {
sline_buffer[pixel_count++] = rp;
}
}
if (pixel_count) dspr->pushImage(ox, y, pixel_count, 1, sline_buffer);
y++;
}
dspr->setSwapBytes(oldSwapBytes);
return true;
}
/***************************************************************************************
** Function name: pushSprite
** Description: Push a cropped sprite to the TFT at tx, ty
***************************************************************************************/
bool TFT_eSprite::pushSprite(int32_t tx, int32_t ty, int32_t sx, int32_t sy, int32_t sw, int32_t sh)
{
if (!_created) return false;
// Perform window boundary checks and crop if needed
setWindow(sx, sy, sx + sw - 1, sy + sh - 1);
/* These global variables are now populated for the sprite
_xs = x start coordinate
_ys = y start coordinate
_xe = x end coordinate (inclusive)
_ye = y end coordinate (inclusive)
*/
// Calculate new sprite window bounding box width and height
sw = _xe - _xs + 1;
sh = _ye - _ys + 1;
if (_ys >= _iheight) return false;
if (_bpp == 16)
{
bool oldSwapBytes = _tft->getSwapBytes();
_tft->setSwapBytes(false);
// Check if a faster block copy to screen is possible
if ( sx == 0 && sw == _dwidth)
_tft->pushImage(tx, ty, sw, sh, _img + _iwidth * _ys );
else // Render line by line
while (sh--)
_tft->pushImage(tx, ty++, sw, 1, _img + _xs + _iwidth * _ys++ );
_tft->setSwapBytes(oldSwapBytes);
}
else if (_bpp == 8)
{
// Check if a faster block copy to screen is possible
if ( sx == 0 && sw == _dwidth)
_tft->pushImage(tx, ty, sw, sh, _img8 + _iwidth * _ys, (bool)true );
else // Render line by line
while (sh--)
_tft->pushImage(tx, ty++, sw, 1, _img8 + _xs + _iwidth * _ys++, (bool)true );
}
else if (_bpp == 4)
{
// Check if a faster block copy to screen is possible
if ( sx == 0 && sw == _dwidth)
_tft->pushImage(tx, ty, sw, sh, _img4 + (_iwidth>>1) * _ys, false, _colorMap );
else // Render line by line
{
int32_t ds = _xs&1; // Odd x start pixel
int32_t de = 0; // Odd x end pixel
if ((sw > ds) && (_xe&1)) de = 1;
uint32_t dm = 0; // Midsection pixel count
if (sw > (ds+de)) dm = sw - ds - de;
sw--;
uint32_t yp = (_xs + ds + _iwidth * _ys)>>1;
_tft->startWrite();
while (sh--)
{
if (ds) _tft->drawPixel(tx, ty, readPixel(_xs, _ys) );
if (dm) _tft->pushImage(tx + ds, ty, dm, 1, _img4 + yp, false, _colorMap );
if (de) _tft->drawPixel(tx + sw, ty, readPixel(_xe, _ys) );
_ys++;
ty++;
yp += (_iwidth>>1);
}
_tft->endWrite();
}
}
else // 1bpp
{
// Check if a faster block copy to screen is possible
if ( sx == 0 && sw == _dwidth)
_tft->pushImage(tx, ty, sw, sh, _img8 + (_bitwidth>>3) * _ys, (bool)false );
else // Render line by line
{
_tft->startWrite();
while (sh--)
{
_tft->pushImage(tx, ty++, sw, 1, _img8 + (_bitwidth>>3) * _ys++, (bool)false );
}
_tft->endWrite();
}
}
return true;
}
/***************************************************************************************
** Function name: readPixelValue
** Description: Read the color map index of a pixel at defined coordinates
***************************************************************************************/
uint16_t TFT_eSprite::readPixelValue(int32_t x, int32_t y)
{
if (_vpOoB || !_created) return 0xFF;
x+= _xDatum;
y+= _yDatum;
// Range checking
if ((x < _vpX) || (y < _vpY) ||(x >= _vpW) || (y >= _vpH)) return 0xFF;
if (_bpp == 16)
{
// Return the pixel colour
return readPixel(x - _xDatum, y - _yDatum);
}
if (_bpp == 8)
{
// Return the pixel byte value
return _img8[x + y * _iwidth];
}
if (_bpp == 4)
{
if (x >= _dwidth) return 0xFF;
if ((x & 0x01) == 0)
return _img4[((x+y*_iwidth)>>1)] >> 4; // even index = bits 7 .. 4
else
return _img4[((x+y*_iwidth)>>1)] & 0x0F; // odd index = bits 3 .. 0.
}
if (_bpp == 1)
{
// Note: _dwidth and _dheight bounds not checked (rounded up -iwidth and _iheight used)
if (rotation == 1)
{
uint16_t tx = x;
x = _dheight - y - 1;
y = tx;
}
else if (rotation == 2)
{
x = _dwidth - x - 1;
y = _dheight - y - 1;
}
else if (rotation == 3)
{
uint16_t tx = x;
x = y;
y = _dwidth - tx - 1;
}
// Return 1 or 0
return (_img8[(x + y * _bitwidth)>>3] >> (7-(x & 0x7))) & 0x01;
}
return 0;
}
/***************************************************************************************
** Function name: readPixel
** Description: Read 565 colour of a pixel at defined coordinates
***************************************************************************************/
uint16_t TFT_eSprite::readPixel(int32_t x, int32_t y)
{
if (_vpOoB || !_created) return 0xFFFF;
x+= _xDatum;
y+= _yDatum;
// Range checking
if ((x < _vpX) || (y < _vpY) ||(x >= _vpW) || (y >= _vpH)) return 0xFFFF;
if (_bpp == 16)
{
uint16_t color = _img[x + y * _iwidth];
return (color >> 8) | (color << 8);
}
if (_bpp == 8)
{
uint16_t color = _img8[x + y * _iwidth];
if (color != 0)
{
uint8_t blue[] = {0, 11, 21, 31};
color = (color & 0xE0)<<8 | (color & 0xC0)<<5
| (color & 0x1C)<<6 | (color & 0x1C)<<3
| blue[color & 0x03];
}
return color;
}
if (_bpp == 4)
{
if (x >= _dwidth) return 0xFFFF;
uint16_t color;
if ((x & 0x01) == 0)
color = _colorMap[_img4[((x+y*_iwidth)>>1)] >> 4]; // even index = bits 7 .. 4
else
color = _colorMap[_img4[((x+y*_iwidth)>>1)] & 0x0F]; // odd index = bits 3 .. 0.
return color;
}
// Note: Must be 1bpp
// _dwidth and _dheight bounds not checked (rounded up -iwidth and _iheight used)
if (rotation == 1)
{
uint16_t tx = x;
x = _dheight - y - 1;
y = tx;
}
else if (rotation == 2)
{
x = _dwidth - x - 1;
y = _dheight - y - 1;
}
else if (rotation == 3)
{
uint16_t tx = x;
x = y;
y = _dwidth - tx - 1;
}
uint16_t color = (_img8[(x + y * _bitwidth)>>3] << (x & 0x7)) & 0x80;
if (color) return _tft->bitmap_fg;
else return _tft->bitmap_bg;
}
/***************************************************************************************
** Function name: pushImage
** Description: push image into a defined area of a sprite
***************************************************************************************/
void TFT_eSprite::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *data, uint8_t sbpp)
{
if (data == nullptr || !_created) return;
PI_CLIP;
if (_bpp == 16) // Plot a 16 bpp image into a 16 bpp Sprite
{
// Pointer within original image
uint8_t *ptro = (uint8_t *)data + ((dx + dy * w) << 1);
// Pointer within sprite image
uint8_t *ptrs = (uint8_t *)_img + ((x + y * _iwidth) << 1);
if(_swapBytes)
{
while (dh--)
{
// Fast copy with a 1 byte shift
memcpy(ptrs+1, ptro, (dw<<1) - 1);
// Now correct just the even numbered bytes
for (int32_t xp = 0; xp < (dw<<1); xp+=2)
{
ptrs[xp] = ptro[xp+1];;
}
ptro += w<<1;
ptrs += _iwidth<<1;
}
}
else
{
while (dh--)
{
memcpy(ptrs, ptro, dw<<1);
ptro += w << 1;
ptrs += _iwidth << 1;
}
}
}
else if (_bpp == 8 && sbpp == 8) // Plot a 8 bpp image into a 8 bpp Sprite
{
// Pointer within original image
uint8_t *ptro = (uint8_t *)data + (dx + dy * w);
// Pointer within sprite image
uint8_t *ptrs = (uint8_t *)_img + (x + y * _iwidth);
while (dh--)
{
memcpy(ptrs, ptro, dw);
ptro += w;
ptrs += _iwidth;
}
}
else if (_bpp == 8) // Plot a 16 bpp image into a 8 bpp Sprite
{
uint16_t lastColor = 0;
uint8_t color8 = 0;
for (int32_t yp = dy; yp < dy + dh; yp++)
{
int32_t xyw = x + y * _iwidth;
int32_t dxypw = dx + yp * w;
for (int32_t xp = dx; xp < dx + dw; xp++)
{
uint16_t color = data[dxypw++];
if (color != lastColor) {
// When data source is a sprite, the bytes are already swapped
if(!_swapBytes) color8 = (uint8_t)((color & 0xE0) | (color & 0x07)<<2 | (color & 0x1800)>>11);
else color8 = (uint8_t)((color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3);
}
lastColor = color;
_img8[xyw++] = color8;
}
y++;
}
}
else if (_bpp == 4)
{
// The image is assumed to be 4 bit, where each byte corresponds to two pixels.
// much faster when aligned to a byte boundary, because the alternative is slower, requiring
// tedious bit operations.
int sWidth = (_iwidth >> 1);
uint8_t *ptr = (uint8_t *)data;
if ((x & 0x01) == 0 && (dx & 0x01) == 0 && (dw & 0x01) == 0)
{
x = (x >> 1) + y * sWidth;
dw = (dw >> 1);
dx = (dx >> 1) + dy * (w>>1);
while (dh--)
{
memcpy(_img4 + x, ptr + dx, dw);
dx += (w >> 1);
x += sWidth;
}
}
else // not optimized
{
for (int32_t yp = dy; yp < dy + dh; yp++)
{
int32_t ox = x;
for (int32_t xp = dx; xp < dx + dw; xp++)
{
uint32_t color;
if ((xp & 0x01) == 0)
color = (ptr[((xp+yp*w)>>1)] & 0xF0) >> 4; // even index = bits 7 .. 4
else
color = ptr[((xp-1+yp*w)>>1)] & 0x0F; // odd index = bits 3 .. 0.
drawPixel(ox, y, color);
ox++;
}
y++;
}
}
}
else // 1bpp
{
// Plot a 1bpp image into a 1bpp Sprite
uint32_t ww = (w+7)>>3; // Width of source image line in bytes
uint8_t *ptr = (uint8_t *)data;
for (int32_t yp = dy; yp < dy + dh; yp++)
{
uint32_t yw = yp * ww; // Byte starting the line containing source pixel
int32_t ox = x;
for (int32_t xp = dx; xp < dx + dw; xp++)
{
uint16_t readPixel = (ptr[(xp>>3) + yw] & (0x80 >> (xp & 0x7)) );
drawPixel(ox++, y, readPixel);
}
y++;
}
}
}
/***************************************************************************************
** Function name: pushImage
** Description: push 565 colour FLASH (PROGMEM) image into a defined area
***************************************************************************************/
void TFT_eSprite::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t *data)
{
#ifdef ESP32
pushImage(x, y, w, h, (uint16_t*) data);
#else
// Partitioned memory FLASH processor
if (data == nullptr || !_created) return;
PI_CLIP;
if (_bpp == 16) // Plot a 16 bpp image into a 16 bpp Sprite
{
for (int32_t yp = dy; yp < dy + dh; yp++)
{
int32_t ox = x;
for (int32_t xp = dx; xp < dx + dw; xp++)
{
uint16_t color = pgm_read_word(data + xp + yp * w);
if(_swapBytes) color = color<<8 | color>>8;
_img[ox + y * _iwidth] = color;
ox++;
}
y++;
}
}
else if (_bpp == 8) // Plot a 16 bpp image into a 8 bpp Sprite
{
for (int32_t yp = dy; yp < dy + dh; yp++)
{
int32_t ox = x;
for (int32_t xp = dx; xp < dx + dw; xp++)
{
uint16_t color = pgm_read_word(data + xp + yp * w);
if(_swapBytes) color = color<<8 | color>>8;
_img8[ox + y * _iwidth] = (uint8_t)((color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3);
ox++;
}
y++;
}
}
else if (_bpp == 4)
{
#ifdef TFT_eSPI_DEBUG
Serial.println("TFT_eSprite::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t *data) not implemented");
#endif
return;
}
else // Plot a 1bpp image into a 1bpp Sprite
{
x-= _xDatum; // Remove offsets, drawPixel will add
y-= _yDatum;
uint16_t bsw = (w+7) >> 3; // Width in bytes of source image line
uint8_t *ptr = ((uint8_t*)data) + dy * bsw;
while (dh--) {
int32_t odx = dx;
int32_t ox = x;
while (odx < dx + dw) {
uint8_t pbyte = pgm_read_byte(ptr + (odx>>3));
uint8_t mask = 0x80 >> (odx & 7);
while (mask) {
uint8_t p = pbyte & mask;
mask = mask >> 1;
drawPixel(ox++, y, p);
odx++;
}
}
ptr += bsw;
y++;
}
}
#endif // if ESP32 check
}
/***************************************************************************************
** Function name: setWindow
** Description: Set the bounds of a window in the sprite
***************************************************************************************/
// Intentionally not constrained to viewport area, does not manage 1bpp rotations
void TFT_eSprite::setWindow(int32_t x0, int32_t y0, int32_t x1, int32_t y1)
{
if (x0 > x1) transpose(x0, x1);
if (y0 > y1) transpose(y0, y1);
int32_t w = width();
int32_t h = height();
if ((x0 >= w) || (x1 < 0) || (y0 >= h) || (y1 < 0))
{ // Point to that extra "off screen" pixel
_xs = 0;
_ys = _dheight;
_xe = 0;
_ye = _dheight;
}
else
{
if (x0 < 0) x0 = 0;
if (x1 >= w) x1 = w - 1;
if (y0 < 0) y0 = 0;
if (y1 >= h) y1 = h - 1;
_xs = x0;
_ys = y0;
_xe = x1;
_ye = y1;
}
_xptr = _xs;
_yptr = _ys;
}
/***************************************************************************************
** Function name: pushColor
** Description: Send a new pixel to the set window
***************************************************************************************/
void TFT_eSprite::pushColor(uint16_t color)
{
if (!_created ) return;
// Write the colour to RAM in set window
if (_bpp == 16)
_img [_xptr + _yptr * _iwidth] = (uint16_t) (color >> 8) | (color << 8);
else if (_bpp == 8)
_img8[_xptr + _yptr * _iwidth] = (uint8_t )((color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3);
else if (_bpp == 4)
{
uint8_t c = (uint8_t)color & 0x0F;
if ((_xptr & 0x01) == 0) {
_img4[(_xptr + _yptr * _iwidth)>>1] = (c << 4) | (_img4[(_xptr + _yptr * _iwidth)>>1] & 0x0F); // new color is in bits 7 .. 4
}
else {
_img4[(_xptr + _yptr * _iwidth)>>1] = (_img4[(_xptr + _yptr * _iwidth)>>1] & 0xF0) | c; // new color is the low bits
}
}
else drawPixel(_xptr, _yptr, color);
// Increment x
_xptr++;
// Wrap on x and y to start, increment y if needed
if (_xptr > _xe)
{
_xptr = _xs;
_yptr++;
if (_yptr > _ye) _yptr = _ys;
}
}
/***************************************************************************************
** Function name: pushColor
** Description: Send a "len" new pixels to the set window
***************************************************************************************/
void TFT_eSprite::pushColor(uint16_t color, uint32_t len)
{
if (!_created ) return;
uint16_t pixelColor;
if (_bpp == 16)
pixelColor = (uint16_t) (color >> 8) | (color << 8);
else if (_bpp == 8)
pixelColor = (color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3;
else pixelColor = (uint16_t) color; // for 1bpp or 4bpp
while(len--) writeColor(pixelColor);
}
/***************************************************************************************
** Function name: writeColor
** Description: Write a pixel with pre-formatted colour to the set window
***************************************************************************************/
void TFT_eSprite::writeColor(uint16_t color)
{
if (!_created ) return;
// Write 16 bit RGB 565 encoded colour to RAM
if (_bpp == 16) _img [_xptr + _yptr * _iwidth] = color;
// Write 8 bit RGB 332 encoded colour to RAM
else if (_bpp == 8) _img8[_xptr + _yptr * _iwidth] = (uint8_t) color;
else if (_bpp == 4)
{
uint8_t c = (uint8_t)color & 0x0F;
if ((_xptr & 0x01) == 0)
_img4[(_xptr + _yptr * _iwidth)>>1] = (c << 4) | (_img4[(_xptr + _yptr * _iwidth)>>1] & 0x0F); // new color is in bits 7 .. 4
else
_img4[(_xptr + _yptr * _iwidth)>>1] = (_img4[(_xptr + _yptr * _iwidth)>>1] & 0xF0) | c; // new color is the low bits (x is odd)
}
else drawPixel(_xptr, _yptr, color);
// Increment x
_xptr++;
// Wrap on x and y to start, increment y if needed
if (_xptr > _xe)
{
_xptr = _xs;
_yptr++;
if (_yptr > _ye) _yptr = _ys;
}
}
/***************************************************************************************
** Function name: setScrollRect
** Description: Set scroll area within the sprite and the gap fill colour
***************************************************************************************/
// Intentionally not constrained to viewport area
void TFT_eSprite::setScrollRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t color)
{
if ((x >= _iwidth) || (y >= _iheight) || !_created ) return;
if (x < 0) { w += x; x = 0; }
if (y < 0) { h += y; y = 0; }
if ((x + w) > _iwidth ) w = _iwidth - x;
if ((y + h) > _iheight) h = _iheight - y;
if ( w < 1 || h < 1) return;
_sx = x;
_sy = y;
_sw = w;
_sh = h;
_scolor = color;
}
/***************************************************************************************
** Function name: scroll
** Description: Scroll dx,dy pixels, positive right,down, negative left,up
***************************************************************************************/
void TFT_eSprite::scroll(int16_t dx, int16_t dy)
{
if (abs(dx) >= _sw || abs(dy) >= _sh)
{
fillRect (_sx, _sy, _sw, _sh, _scolor);
return;
}
// Fetch the scroll area width and height set by setScrollRect()
uint32_t w = _sw - abs(dx); // line width to copy
uint32_t h = _sh - abs(dy); // lines to copy
int32_t iw = _iwidth; // rounded up width of sprite
// Fetch the x,y origin set by setScrollRect()
uint32_t tx = _sx; // to x
uint32_t fx = _sx; // from x
uint32_t ty = _sy; // to y
uint32_t fy = _sy; // from y
// Adjust for x delta
if (dx <= 0) fx -= dx;
else tx += dx;
// Adjust for y delta
if (dy <= 0) fy -= dy;
else
{ // Scrolling down so start copy from bottom
ty = ty + _sh - 1; // "To" pointer
iw = -iw; // Pointer moves backwards
fy = ty - dy; // "From" pointer
}
// Calculate "from y" and "to y" pointers in RAM
uint32_t fyp = fx + fy * _iwidth;
uint32_t typ = tx + ty * _iwidth;
// Now move the pixels in RAM
if (_bpp == 16)
{
while (h--)
{ // move pixel lines (to, from, byte count)
memmove( _img + typ, _img + fyp, w<<1);
typ += iw;
fyp += iw;
}
}
else if (_bpp == 8)
{
while (h--)
{ // move pixel lines (to, from, byte count)
memmove( _img8 + typ, _img8 + fyp, w);
typ += iw;
fyp += iw;
}
}
else if (_bpp == 4)
{
// could optimize for scrolling by even # pixels using memove (later)
if (dx > 0) { tx += w; fx += w; } // Start from right edge
while (h--)
{ // move pixels one by one
for (uint16_t xp = 0; xp < w; xp++)
{
if (dx <= 0) drawPixel(tx + xp, ty, readPixelValue(fx + xp, fy));
if (dx > 0) drawPixel(tx - xp, ty, readPixelValue(fx - xp, fy));
}
if (dy <= 0) { ty++; fy++; }
else { ty--; fy--; }
}
}
else if (_bpp == 1 )
{
if (dx > 0) { tx += w; fx += w; } // Start from right edge
while (h--)
{ // move pixels one by one
for (uint16_t xp = 0; xp < w; xp++)
{
if (dx <= 0) drawPixel(tx + xp, ty, readPixelValue(fx + xp, fy));
if (dx > 0) drawPixel(tx - xp, ty, readPixelValue(fx - xp, fy));
}
if (dy <= 0) { ty++; fy++; }
else { ty--; fy--; }
}
}
else return; // Not 1, 4, 8 or 16 bpp
// Fill the gap left by the scrolling
if (dx > 0) fillRect(_sx, _sy, dx, _sh, _scolor);
if (dx < 0) fillRect(_sx + _sw + dx, _sy, -dx, _sh, _scolor);
if (dy > 0) fillRect(_sx, _sy, _sw, dy, _scolor);
if (dy < 0) fillRect(_sx, _sy + _sh + dy, _sw, -dy, _scolor);
}
/***************************************************************************************
** Function name: fillSprite
** Description: Fill the whole sprite with defined colour
***************************************************************************************/
void TFT_eSprite::fillSprite(uint32_t color)
{
if (!_created || _vpOoB) return;
// Use memset if possible as it is super fast
if(_xDatum == 0 && _yDatum == 0 && _xWidth == width())
{
if(_bpp == 16) {
if ( (uint8_t)color == (uint8_t)(color>>8) ) {
memset(_img, (uint8_t)color, _iwidth * _yHeight * 2);
}
else fillRect(_vpX, _vpY, _xWidth, _yHeight, color);
}
else if (_bpp == 8)
{
color = (color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3;
memset(_img8, (uint8_t)color, _iwidth * _yHeight);
}
else if (_bpp == 4)
{
uint8_t c = ((color & 0x0F) | (((color & 0x0F) << 4) & 0xF0));
memset(_img4, c, (_iwidth * _yHeight) >> 1);
}
else if (_bpp == 1)
{
if(color) memset(_img8, 0xFF, (_bitwidth>>3) * _dheight + 1);
else memset(_img8, 0x00, (_bitwidth>>3) * _dheight + 1);
}
}
else fillRect(_vpX - _xDatum, _vpY - _yDatum, _xWidth, _yHeight, color);
}
/***************************************************************************************
** Function name: width
** Description: Return the width of sprite
***************************************************************************************/
// Return the size of the sprite
int16_t TFT_eSprite::width(void)
{
if (!_created ) return 0;
if (_bpp > 1) {
if (_vpDatum) return _xWidth;
return _dwidth;
}
if (rotation & 1) {
if (_vpDatum) return _xWidth;
return _dheight;
}
if (_vpDatum) return _xWidth;
return _dwidth;
}
/***************************************************************************************
** Function name: height
** Description: Return the height of sprite
***************************************************************************************/
int16_t TFT_eSprite::height(void)
{
if (!_created ) return 0;
if (_bpp > 1) {
if (_vpDatum) return _yHeight;
return _dheight;
}
if (rotation & 1) {
if (_vpDatum) return _yHeight;
return _dwidth;
}
if (_vpDatum) return _yHeight;
return _dheight;
}
/***************************************************************************************
** Function name: setRotation
** Description: Rotate coordinate frame for 1bpp sprite
***************************************************************************************/
// Does nothing for 4, 8 and 16 bpp sprites.
void TFT_eSprite::setRotation(uint8_t r)
{
if (_bpp != 1) return;
rotation = r;
if (rotation&1) {
resetViewport();
}
else {
resetViewport();
}
}
/***************************************************************************************
** Function name: getRotation
** Description: Get rotation for 1bpp sprite
***************************************************************************************/
uint8_t TFT_eSprite::getRotation(void)
{
return rotation;
}
/***************************************************************************************
** Function name: drawPixel
** Description: push a single pixel at an arbitrary position
***************************************************************************************/
void TFT_eSprite::drawPixel(int32_t x, int32_t y, uint32_t color)
{
if (!_created || _vpOoB) return;
x+= _xDatum;
y+= _yDatum;
// Range checking
if ((x < _vpX) || (y < _vpY) ||(x >= _vpW) || (y >= _vpH)) return;
if (_bpp == 16)
{
color = (color >> 8) | (color << 8);
_img[x+y*_iwidth] = (uint16_t) color;
}
else if (_bpp == 8)
{
_img8[x+y*_iwidth] = (uint8_t)((color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3);
}
else if (_bpp == 4)
{
uint8_t c = color & 0x0F;
int index = (x+y*_iwidth)>>1;;
if ((x & 0x01) == 0) {
_img4[index] = (uint8_t)((c << 4) | (_img4[index] & 0x0F));
}
else {
_img4[index] = (uint8_t)(c | (_img4[index] & 0xF0));
}
}
else // 1 bpp
{
if (rotation == 1)
{
uint16_t tx = x;
x = _dwidth - y - 1;
y = tx;
}
else if (rotation == 2)
{
x = _dwidth - x - 1;
y = _dheight - y - 1;
}
else if (rotation == 3)
{
uint16_t tx = x;
x = y;
y = _dheight - tx - 1;
}
if (color) _img8[(x + y * _bitwidth)>>3] |= (0x80 >> (x & 0x7));
else _img8[(x + y * _bitwidth)>>3] &= ~(0x80 >> (x & 0x7));
}
}
/***************************************************************************************
** Function name: drawLine
** Description: draw a line between 2 arbitrary points
***************************************************************************************/
void TFT_eSprite::drawLine(int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t color)
{
if (!_created || _vpOoB) return;
//_xDatum and _yDatum Not added here, it is added by drawPixel & drawFastxLine
bool steep = abs(y1 - y0) > abs(x1 - x0);
if (steep) {
transpose(x0, y0);
transpose(x1, y1);
}
if (x0 > x1) {
transpose(x0, x1);
transpose(y0, y1);
}
int32_t dx = x1 - x0, dy = abs(y1 - y0);;
int32_t err = dx >> 1, ystep = -1, xs = x0, dlen = 0;
if (y0 < y1) ystep = 1;
// Split into steep and not steep for FastH/V separation
if (steep) {
for (; x0 <= x1; x0++) {
dlen++;
err -= dy;
if (err < 0) {
err += dx;
if (dlen == 1) drawPixel(y0, xs, color);
else drawFastVLine(y0, xs, dlen, color);
dlen = 0; y0 += ystep; xs = x0 + 1;
}
}
if (dlen) drawFastVLine(y0, xs, dlen, color);
}
else
{
for (; x0 <= x1; x0++) {
dlen++;
err -= dy;
if (err < 0) {
err += dx;
if (dlen == 1) drawPixel(xs, y0, color);
else drawFastHLine(xs, y0, dlen, color);
dlen = 0; y0 += ystep; xs = x0 + 1;
}
}
if (dlen) drawFastHLine(xs, y0, dlen, color);
}
}
/***************************************************************************************
** Function name: drawFastVLine
** Description: draw a vertical line
***************************************************************************************/
void TFT_eSprite::drawFastVLine(int32_t x, int32_t y, int32_t h, uint32_t color)
{
if (!_created || _vpOoB) return;
x+= _xDatum;
y+= _yDatum;
// Clipping
if ((x < _vpX) || (x >= _vpW) || (y >= _vpH)) return;
if (y < _vpY) { h += y - _vpY; y = _vpY; }
if ((y + h) > _vpH) h = _vpH - y;
if (h < 1) return;
if (_bpp == 16)
{
color = (color >> 8) | (color << 8);
int32_t yp = x + _iwidth * y;
while (h--) {_img[yp] = (uint16_t) color; yp += _iwidth;}
}
else if (_bpp == 8)
{
color = (color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3;
while (h--) _img8[x + _iwidth * y++] = (uint8_t) color;
}
else if (_bpp == 4)
{
if ((x & 0x01) == 0)
{
uint8_t c = (uint8_t) (color & 0xF) << 4;
while (h--) {
_img4[(x + _iwidth * y)>>1] = (uint8_t) (c | (_img4[(x + _iwidth * y)>>1] & 0x0F));
y++;
}
}
else {
uint8_t c = (uint8_t)color & 0xF;
while (h--) {
_img4[(x + _iwidth * y)>>1] = (uint8_t) (c | (_img4[(x + _iwidth * y)>>1] & 0xF0)); // x is odd; new color goes into the low bits.
y++;
}
}
}
else
{
x -= _xDatum; // Remove any offset as it will be added by drawPixel
y -= _yDatum;
while (h--)
{
drawPixel(x, y++, color);
}
}
}
/***************************************************************************************
** Function name: drawFastHLine
** Description: draw a horizontal line
***************************************************************************************/
void TFT_eSprite::drawFastHLine(int32_t x, int32_t y, int32_t w, uint32_t color)
{
if (!_created || _vpOoB) return;
x+= _xDatum;
y+= _yDatum;
// Clipping
if ((y < _vpY) || (x >= _vpW) || (y >= _vpH)) return;
if (x < _vpX) { w += x - _vpX; x = _vpX; }
if ((x + w) > _vpW) w = _vpW - x;
if (w < 1) return;
if (_bpp == 16)
{
color = (color >> 8) | (color << 8);
while (w--) _img[_iwidth * y + x++] = (uint16_t) color;
}
else if (_bpp == 8)
{
color = (color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3;
memset(_img8+_iwidth * y + x, (uint8_t)color, w);
}
else if (_bpp == 4)
{
uint8_t c = (uint8_t)color & 0x0F;
uint8_t c2 = (c | ((c << 4) & 0xF0));
if ((x & 0x01) == 1)
{
drawPixel(x - _xDatum, y - _yDatum, color);
x++; w--;
if (w < 1)
return;
}
if (((w + x) & 0x01) == 1)
{
// handle the extra one at the other end
drawPixel(x - _xDatum + w - 1, y - _yDatum, color);
w--;
if (w < 1) return;
}
memset(_img4 + ((_iwidth * y + x) >> 1), c2, (w >> 1));
}
else {
x -= _xDatum; // Remove any offset as it will be added by drawPixel
y -= _yDatum;
while (w--)
{
drawPixel(x++, y, color);
}
}
}
/***************************************************************************************
** Function name: fillRect
** Description: draw a filled rectangle
***************************************************************************************/
void TFT_eSprite::fillRect(int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color)
{
if (!_created || _vpOoB) return;
x+= _xDatum;
y+= _yDatum;
// Clipping
if ((x >= _vpW) || (y >= _vpH)) return;
if (x < _vpX) { w += x - _vpX; x = _vpX; }
if (y < _vpY) { h += y - _vpY; y = _vpY; }
if ((x + w) > _vpW) w = _vpW - x;
if ((y + h) > _vpH) h = _vpH - y;
if ((w < 1) || (h < 1)) return;
int32_t yp = _iwidth * y + x;
if (_bpp == 16)
{
color = (color >> 8) | (color << 8);
uint32_t iw = w;
int32_t ys = yp;
if(h--) {while (iw--) _img[yp++] = (uint16_t) color;}
yp = ys;
while (h--)
{
yp += _iwidth;
memcpy( _img+yp, _img+ys, w<<1);
}
}
else if (_bpp == 8)
{
color = (color & 0xE000)>>8 | (color & 0x0700)>>6 | (color & 0x0018)>>3;
while (h--)
{
memset(_img8 + yp, (uint8_t)color, w);
yp += _iwidth;
}
}
else if (_bpp == 4)
{
uint8_t c1 = (uint8_t)color & 0x0F;
uint8_t c2 = c1 | ((c1 << 4) & 0xF0);
if ((x & 0x01) == 0 && (w & 0x01) == 0)
{
yp = (yp >> 1);
while (h--)
{
memset(_img4 + yp, c2, (w>>1));
yp += (_iwidth >> 1);
}
}
else if ((x & 0x01) == 0)
{
// same as above but you have a hangover on the right.
yp = (yp >> 1);
while (h--)
{
if (w > 1)
memset(_img4 + yp, c2, (w-1)>>1);
// handle the rightmost pixel by calling drawPixel
drawPixel(x+w-1-_xDatum, y+h-_yDatum, c1);
yp += (_iwidth >> 1);
}
}
else if ((w & 0x01) == 1)
{
yp = (yp + 1) >> 1;
while (h--) {
drawPixel(x-_xDatum, y+h-_yDatum, color & 0x0F);
if (w > 1)
memset(_img4 + yp, c2, (w-1)>>1);
// same as above but you have a hangover on the left instead
yp += (_iwidth >> 1);
}
}
else
{
yp = (yp + 1) >> 1;
while (h--) {
drawPixel(x-_xDatum, y+h-_yDatum, color & 0x0F);
if (w > 1) drawPixel(x+w-1-_xDatum, y+h-_yDatum, color & 0x0F);
if (w > 2)
memset(_img4 + yp, c2, (w-2)>>1);
// maximal hacking, single pixels on left and right.
yp += (_iwidth >> 1);
}
}
}
else
{
x -= _xDatum;
y -= _yDatum;
while (h--)
{
int32_t ww = w;
int32_t xx = x;
while (ww--) drawPixel(xx++, y, color);
y++;
}
}
}
/***************************************************************************************
** Function name: drawChar
** Description: draw a single character in the Adafruit GLCD or freefont
***************************************************************************************/
void TFT_eSprite::drawChar(int32_t x, int32_t y, uint16_t c, uint32_t color, uint32_t bg, uint8_t size)
{
if ( _vpOoB || !_created ) return;
if ((x >= _vpW - _xDatum) || // Clip right
(y >= _vpH - _yDatum)) // Clip bottom
return;
if (c < 32) return;
#ifdef LOAD_GLCD
//>>>>>>>>>>>>>>>>>>
#ifdef LOAD_GFXFF
if(!gfxFont) { // 'Classic' built-in font
#endif
//>>>>>>>>>>>>>>>>>>
if (((x + 6 * size - 1) < (_vpX - _xDatum)) || // Clip left
((y + 8 * size - 1) < (_vpY - _yDatum))) // Clip top
return;
bool fillbg = (bg != color);
if ((size==1) && fillbg)
{
uint8_t column[6];
uint8_t mask = 0x1;
for (int8_t i = 0; i < 5; i++ ) column[i] = pgm_read_byte(font + (c * 5) + i);
column[5] = 0;
int8_t j, k;
for (j = 0; j < 8; j++) {
for (k = 0; k < 5; k++ ) {
if (column[k] & mask) {
drawPixel(x + k, y + j, color);
}
else {
drawPixel(x + k, y + j, bg);
}
}
mask <<= 1;
drawPixel(x + k, y + j, bg);
}
}
else
{
for (int8_t i = 0; i < 6; i++ ) {
uint8_t line;
if (i == 5)
line = 0x0;
else
line = pgm_read_byte(font + (c * 5) + i);
if (size == 1) // default size
{
for (int8_t j = 0; j < 8; j++) {
if (line & 0x1) drawPixel(x + i, y + j, color);
line >>= 1;
}
}
else { // big size
for (int8_t j = 0; j < 8; j++) {
if (line & 0x1) fillRect(x + (i * size), y + (j * size), size, size, color);
else if (fillbg) fillRect(x + i * size, y + j * size, size, size, bg);
line >>= 1;
}
}
}
}
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
#ifdef LOAD_GFXFF
} else { // Custom font
#endif
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
#endif // LOAD_GLCD
#ifdef LOAD_GFXFF
// Filter out bad characters not present in font
if ((c >= pgm_read_word(&gfxFont->first)) && (c <= pgm_read_word(&gfxFont->last )))
{
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
c -= pgm_read_word(&gfxFont->first);
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c]);
uint8_t w = pgm_read_byte(&glyph->width),
h = pgm_read_byte(&glyph->height);
int8_t xo = pgm_read_byte(&glyph->xOffset),
yo = pgm_read_byte(&glyph->yOffset);
if (((x + xo + w * size - 1) < (_vpX - _xDatum)) || // Clip left
((y + yo + h * size - 1) < (_vpY - _yDatum))) // Clip top
return;
uint8_t *bitmap = (uint8_t *)pgm_read_dword(&gfxFont->bitmap);
uint32_t bo = pgm_read_word(&glyph->bitmapOffset);
uint8_t xx, yy, bits=0, bit=0;
//uint8_t xa = pgm_read_byte(&glyph->xAdvance);
int16_t xo16 = 0, yo16 = 0;
if(size > 1) {
xo16 = xo;
yo16 = yo;
}
uint16_t hpc = 0; // Horizontal foreground pixel count
for(yy=0; yy<h; yy++) {
for(xx=0; xx<w; xx++) {
if(bit == 0) {
bits = pgm_read_byte(&bitmap[bo++]);
bit = 0x80;
}
if(bits & bit) hpc++;
else {
if (hpc) {
if(size == 1) drawFastHLine(x+xo+xx-hpc, y+yo+yy, hpc, color);
else fillRect(x+(xo16+xx-hpc)*size, y+(yo16+yy)*size, size*hpc, size, color);
hpc=0;
}
}
bit >>= 1;
}
// Draw pixels for this line as we are about to increment yy
if (hpc) {
if(size == 1) drawFastHLine(x+xo+xx-hpc, y+yo+yy, hpc, color);
else fillRect(x+(xo16+xx-hpc)*size, y+(yo16+yy)*size, size*hpc, size, color);
hpc=0;
}
}
}
#endif
#ifdef LOAD_GLCD
#ifdef LOAD_GFXFF
} // End classic vs custom font
#endif
#else
#ifndef LOAD_GFXFF
color = color;
bg = bg;
size = size;
#endif
#endif
}
/***************************************************************************************
** Function name: drawChar
** Description: draw a unicode glyph into the sprite
***************************************************************************************/
// TODO: Rationalise with TFT_eSPI
// Any UTF-8 decoding must be done before calling drawChar()
int16_t TFT_eSprite::drawChar(uint16_t uniCode, int32_t x, int32_t y)
{
return drawChar(uniCode, x, y, textfont);
}
// Any UTF-8 decoding must be done before calling drawChar()
int16_t TFT_eSprite::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
{
if (_vpOoB || !uniCode) return 0;
if (font==1) {
#ifdef LOAD_GLCD
#ifndef LOAD_GFXFF
drawChar(x, y, uniCode, textcolor, textbgcolor, textsize);
return 6 * textsize;
#endif
#else
#ifndef LOAD_GFXFF
return 0;
#endif
#endif
#ifdef LOAD_GFXFF
drawChar(x, y, uniCode, textcolor, textbgcolor, textsize);
if(!gfxFont) { // 'Classic' built-in font
#ifdef LOAD_GLCD
return 6 * textsize;
#else
return 0;
#endif
}
else {
if((uniCode >= pgm_read_word(&gfxFont->first)) && (uniCode <= pgm_read_word(&gfxFont->last) )) {
uint16_t c2 = uniCode - pgm_read_word(&gfxFont->first);
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c2]);
return pgm_read_byte(&glyph->xAdvance) * textsize;
}
else {
return 0;
}
}
#endif
}
if ((font>1) && (font<9) && ((uniCode < 32) || (uniCode > 127))) return 0;
int32_t width = 0;
int32_t height = 0;
uint32_t flash_address = 0;
uniCode -= 32;
#ifdef LOAD_FONT2
if (font == 2) {
flash_address = pgm_read_dword(&chrtbl_f16[uniCode]);
width = pgm_read_byte(widtbl_f16 + uniCode);
height = chr_hgt_f16;
}
#ifdef LOAD_RLE
else
#endif
#endif
#ifdef LOAD_RLE
{
if ((font>2) && (font<9)) {
flash_address = pgm_read_dword( (const void*)(pgm_read_dword( &(fontdata[font].chartbl ) ) + uniCode*sizeof(void *)) );
width = pgm_read_byte( (uint8_t *)pgm_read_dword( &(fontdata[font].widthtbl ) ) + uniCode );
height= pgm_read_byte( &fontdata[font].height );
}
}
#endif
int32_t xd = x + _xDatum;
int32_t yd = y + _yDatum;
if ((xd + width * textsize < _vpX || xd >= _vpW) && (yd + height * textsize < _vpY || yd >= _vpH)) return width * textsize ;
int32_t w = width;
int32_t pX = 0;
int32_t pY = y;
uint8_t line = 0;
bool clip = xd < _vpX || xd + width * textsize >= _vpW || yd < _vpY || yd + height * textsize >= _vpH;
#ifdef LOAD_FONT2 // chop out code if we do not need it
if (font == 2) {
w = w + 6; // Should be + 7 but we need to compensate for width increment
w = w / 8;
for (int32_t i = 0; i < height; i++)
{
if (textcolor != textbgcolor) fillRect(x, pY, width * textsize, textsize, textbgcolor);
for (int32_t k = 0; k < w; k++)
{
line = pgm_read_byte((uint8_t *)flash_address + w * i + k);
if (line) {
if (textsize == 1) {
pX = x + k * 8;
if (line & 0x80) drawPixel(pX, pY, textcolor);
if (line & 0x40) drawPixel(pX + 1, pY, textcolor);
if (line & 0x20) drawPixel(pX + 2, pY, textcolor);
if (line & 0x10) drawPixel(pX + 3, pY, textcolor);
if (line & 0x08) drawPixel(pX + 4, pY, textcolor);
if (line & 0x04) drawPixel(pX + 5, pY, textcolor);
if (line & 0x02) drawPixel(pX + 6, pY, textcolor);
if (line & 0x01) drawPixel(pX + 7, pY, textcolor);
}
else {
pX = x + k * 8 * textsize;
if (line & 0x80) fillRect(pX, pY, textsize, textsize, textcolor);
if (line & 0x40) fillRect(pX + textsize, pY, textsize, textsize, textcolor);
if (line & 0x20) fillRect(pX + 2 * textsize, pY, textsize, textsize, textcolor);
if (line & 0x10) fillRect(pX + 3 * textsize, pY, textsize, textsize, textcolor);
if (line & 0x08) fillRect(pX + 4 * textsize, pY, textsize, textsize, textcolor);
if (line & 0x04) fillRect(pX + 5 * textsize, pY, textsize, textsize, textcolor);
if (line & 0x02) fillRect(pX + 6 * textsize, pY, textsize, textsize, textcolor);
if (line & 0x01) fillRect(pX + 7 * textsize, pY, textsize, textsize, textcolor);
}
}
}
pY += textsize;
}
}
#ifdef LOAD_RLE
else
#endif
#endif //FONT2
#ifdef LOAD_RLE //674 bytes of code
// Font is not 2 and hence is RLE encoded
{
w *= height; // Now w is total number of pixels in the character
int16_t color = textcolor;
if (_bpp == 16) color = (textcolor >> 8) | (textcolor << 8);
else if (_bpp == 8) color = ((textcolor & 0xE000)>>8 | (textcolor & 0x0700)>>6 | (textcolor & 0x0018)>>3);
int16_t bgcolor = textbgcolor;
if (_bpp == 16) bgcolor = (textbgcolor >> 8) | (textbgcolor << 8);
else if (_bpp == 8) bgcolor = ((textbgcolor & 0xE000)>>8 | (textbgcolor & 0x0700)>>6 | (textbgcolor & 0x0018)>>3);
if (textcolor == textbgcolor && !clip && _bpp != 1) {
int32_t px = 0, py = pY; // To hold character block start and end column and row values
int32_t pc = 0; // Pixel count
uint8_t np = textsize * textsize; // Number of pixels in a drawn pixel
uint8_t tnp = 0; // Temporary copy of np for while loop
uint8_t ts = textsize - 1; // Temporary copy of textsize
// 16 bit pixel count so maximum font size is equivalent to 180x180 pixels in area
// w is total number of pixels to plot to fill character block
while (pc < w) {
line = pgm_read_byte((uint8_t *)flash_address);
flash_address++;
if (line & 0x80) {
line &= 0x7F;
line++;
if (ts) {
px = xd + textsize * (pc % width); // Keep these px and py calculations outside the loop as they are slow
py = yd + textsize * (pc / width);
}
else {
px = xd + pc % width; // Keep these px and py calculations outside the loop as they are slow
py = yd + pc / width;
}
while (line--) { // In this case the while(line--) is faster
pc++; // This is faster than putting pc+=line before while()?
setWindow(px, py, px + ts, py + ts);
if (ts) {
tnp = np;
while (tnp--) writeColor(color);
}
else writeColor(color);
px += textsize;
if (px >= (xd + width * textsize)) {
px = xd;
py += textsize;
}
}
}
else {
line++;
pc += line;
}
}
}
else {
// Text colour != background and textsize = 1 and character is within viewport area
// so use faster drawing of characters and background using block write
if (textcolor != textbgcolor && textsize == 1 && !clip && _bpp != 1)
{
setWindow(xd, yd, xd + width - 1, yd + height - 1);
// Maximum font size is equivalent to 180x180 pixels in area
while (w > 0) {
line = pgm_read_byte((uint8_t *)flash_address++); // 8 bytes smaller when incrementing here
if (line & 0x80) {
line &= 0x7F;
line++; w -= line;
while (line--) writeColor(color);
}
else {
line++; w -= line;
while (line--) writeColor(bgcolor);
}
}
}
else
{
int32_t px = 0, py = 0; // To hold character pixel coords
int32_t tx = 0, ty = 0; // To hold character TFT pixel coords
int32_t pc = 0; // Pixel count
int32_t pl = 0; // Pixel line length
uint16_t pcol = 0; // Pixel color
bool pf = true; // Flag for plotting
while (pc < w) {
line = pgm_read_byte((uint8_t *)flash_address);
flash_address++;
if (line & 0x80) { pcol = textcolor; line &= 0x7F; pf = true;}
else { pcol = textbgcolor; if (textcolor == textbgcolor) pf = false;}
line++;
px = pc % width;
tx = x + textsize * px;
py = pc / width;
ty = y + textsize * py;
pl = 0;
pc += line;
while (line--) {
pl++;
if ((px+pl) >= width) {
if (pf) fillRect(tx, ty, pl * textsize, textsize, pcol);
pl = 0;
px = 0;
tx = x;
py ++;
ty += textsize;
}
}
if (pl && pf) fillRect(tx, ty, pl * textsize, textsize, pcol);
}
}
}
}
// End of RLE font rendering
#endif
#if !defined (LOAD_FONT2) && !defined (LOAD_RLE)
// Stop warnings
flash_address = flash_address;
w = w;
pX = pX;
pY = pY;
line = line;
clip = clip;
#endif
return width * textsize; // x +
}
#ifdef SMOOTH_FONT
/***************************************************************************************
** Function name: drawGlyph
** Description: Write a character to the sprite cursor position
***************************************************************************************/
//
void TFT_eSprite::drawGlyph(uint16_t code)
{
uint16_t fg = textcolor;
uint16_t bg = textbgcolor;
bool getBG = false;
if (fg == bg) getBG = true;
// Check if cursor has moved
if (last_cursor_x != cursor_x)
{
bg_cursor_x = cursor_x;
last_cursor_x = cursor_x;
}
if (code < 0x21)
{
if (code == 0x20) {
if (_fillbg) fillRect(bg_cursor_x, cursor_y, (cursor_x + gFont.spaceWidth) - bg_cursor_x, gFont.yAdvance, bg);
cursor_x += gFont.spaceWidth;
bg_cursor_x = cursor_x;
last_cursor_x = cursor_x;
return;
}
if (code == '\n') {
cursor_x = 0;
bg_cursor_x = 0;
last_cursor_x = 0;
cursor_y += gFont.yAdvance;
if (textwrapY && (cursor_y >= height())) cursor_y = 0;
return;
}
}
uint16_t gNum = 0;
bool found = getUnicodeIndex(code, &gNum);
if (found)
{
bool newSprite = !_created;
if (newSprite)
{
createSprite(gWidth[gNum], gFont.yAdvance);
if(fg != bg) fillSprite(bg);
cursor_x = -gdX[gNum];
bg_cursor_x = cursor_x;
last_cursor_x = cursor_x;
cursor_y = 0;
}
else
{
if( textwrapX && ((cursor_x + gWidth[gNum] + gdX[gNum]) > width())) {
cursor_y += gFont.yAdvance;
cursor_x = 0;
bg_cursor_x = 0;
last_cursor_x = 0;
}
if( textwrapY && ((cursor_y + gFont.yAdvance) > height())) cursor_y = 0;
if ( cursor_x == 0) cursor_x -= gdX[gNum];
}
uint8_t* pbuffer = nullptr;
const uint8_t* gPtr = (const uint8_t*) gFont.gArray;
#ifdef FONT_FS_AVAILABLE
if (fs_font) {
fontFile.seek(gBitmap[gNum], fs::SeekSet); // This is slow for a significant position shift!
pbuffer = (uint8_t*)malloc(gWidth[gNum]);
}
#endif
int16_t cy = cursor_y + gFont.maxAscent - gdY[gNum];
int16_t cx = cursor_x + gdX[gNum];
// if (cx > width() && bg_cursor_x > width()) return;
// if (cursor_y > height()) return;
int16_t fxs = cx;
uint32_t fl = 0;
int16_t bxs = cx;
uint32_t bl = 0;
int16_t bx = 0;
uint8_t pixel = 0;
int16_t fillwidth = 0;
int16_t fillheight = 0;
// Fill area above glyph
if (_fillbg) {
fillwidth = (cursor_x + gxAdvance[gNum]) - bg_cursor_x;
if (fillwidth > 0) {
fillheight = gFont.maxAscent - gdY[gNum];
if (fillheight > 0) {
fillRect(bg_cursor_x, cursor_y, fillwidth, fillheight, textbgcolor);
}
}
else {
// Could be negative
fillwidth = 0;
}
// Fill any area to left of glyph
if (bg_cursor_x < cx) fillRect(bg_cursor_x, cy, cx - bg_cursor_x, gHeight[gNum], textbgcolor);
// Set x position in glyph area where background starts
if (bg_cursor_x > cx) bx = bg_cursor_x - cx;
// Fill any area to right of glyph
if (cx + gWidth[gNum] < cursor_x + gxAdvance[gNum]) {
fillRect(cx + gWidth[gNum], cy, (cursor_x + gxAdvance[gNum]) - (cx + gWidth[gNum]), gHeight[gNum], textbgcolor);
}
}
for (int32_t y = 0; y < gHeight[gNum]; y++)
{
#ifdef FONT_FS_AVAILABLE
if (fs_font) {
fontFile.read(pbuffer, gWidth[gNum]);
}
#endif
for (int32_t x = 0; x < gWidth[gNum]; x++)
{
#ifdef FONT_FS_AVAILABLE
if (fs_font) pixel = pbuffer[x];
else
#endif
pixel = pgm_read_byte(gPtr + gBitmap[gNum] + x + gWidth[gNum] * y);
if (pixel)
{
if (bl) { drawFastHLine( bxs, y + cy, bl, bg); bl = 0; }
if (pixel != 0xFF)
{
if (fl) {
if (fl==1) drawPixel(fxs, y + cy, fg);
else drawFastHLine( fxs, y + cy, fl, fg);
fl = 0;
}
if (getBG) bg = readPixel(x + cx, y + cy);
drawPixel(x + cx, y + cy, alphaBlend(pixel, fg, bg));
}
else
{
if (fl==0) fxs = x + cx;
fl++;
}
}
else
{
if (fl) { drawFastHLine( fxs, y + cy, fl, fg); fl = 0; }
if (_fillbg) {
if (x >= bx) {
if (bl==0) bxs = x + cx;
bl++;
}
}
}
}
if (fl) { drawFastHLine( fxs, y + cy, fl, fg); fl = 0; }
if (bl) { drawFastHLine( bxs, y + cy, bl, bg); bl = 0; }
}
// Fill area below glyph
if (fillwidth > 0) {
fillheight = (cursor_y + gFont.yAdvance) - (cy + gHeight[gNum]);
if (fillheight > 0) {
fillRect(bg_cursor_x, cy + gHeight[gNum], fillwidth, fillheight, textbgcolor);
}
}
if (pbuffer) free(pbuffer);
cursor_x += gxAdvance[gNum];
if (newSprite)
{
pushSprite(cx, cursor_y);
deleteSprite();
}
}
else
{
// Not a Unicode in font so draw a rectangle and move on cursor
drawRect(cursor_x, cursor_y + gFont.maxAscent - gFont.ascent, gFont.spaceWidth, gFont.ascent, fg);
cursor_x += gFont.spaceWidth + 1;
}
bg_cursor_x = cursor_x;
last_cursor_x = cursor_x;
}
/***************************************************************************************
** Function name: printToSprite
** Description: Write a string to the sprite cursor position
***************************************************************************************/
void TFT_eSprite::printToSprite(String string)
{
if(!fontLoaded) return;
printToSprite((char*)string.c_str(), string.length());
}
/***************************************************************************************
** Function name: printToSprite
** Description: Write a string to the sprite cursor position
***************************************************************************************/
void TFT_eSprite::printToSprite(char *cbuffer, uint16_t len) //String string)
{
if(!fontLoaded) return;
uint16_t n = 0;
bool newSprite = !_created;
int16_t cursorX = _tft->cursor_x;
if (newSprite)
{
int16_t sWidth = 0;
uint16_t index = 0;
bool first = true;
while (n < len)
{
uint16_t unicode = decodeUTF8((uint8_t*)cbuffer, &n, len - n);
if (getUnicodeIndex(unicode, &index))
{
if (first) {
first = false;
sWidth -= gdX[index];
cursorX += gdX[index];
}
if (n == len) sWidth += ( gWidth[index] + gdX[index]);
else sWidth += gxAdvance[index];
}
else sWidth += gFont.spaceWidth + 1;
}
createSprite(sWidth, gFont.yAdvance);
if (textcolor != textbgcolor) fillSprite(textbgcolor);
}
n = 0;
while (n < len)
{
uint16_t unicode = decodeUTF8((uint8_t*)cbuffer, &n, len - n);
//Serial.print("Decoded Unicode = 0x");Serial.println(unicode,HEX);
//Serial.print("n = ");Serial.println(n);
drawGlyph(unicode);
}
if (newSprite)
{ // The sprite had to be created so place at TFT cursor
pushSprite(cursorX, _tft->cursor_y);
deleteSprite();
}
}
/***************************************************************************************
** Function name: printToSprite
** Description: Print character in a Sprite, create sprite if needed
***************************************************************************************/
int16_t TFT_eSprite::printToSprite(int16_t x, int16_t y, uint16_t index)
{
bool newSprite = !_created;
int16_t sWidth = gWidth[index];
if (newSprite)
{
createSprite(sWidth, gFont.yAdvance);
if (textcolor != textbgcolor) fillSprite(textbgcolor);
drawGlyph(gUnicode[index]);
pushSprite(x + gdX[index], y, textbgcolor);
deleteSprite();
}
else drawGlyph(gUnicode[index]);
return gxAdvance[index];
}
#endif
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