Thu, 02 May 2019 11:52:36 +0200
Added tag rel-0.2.10 for changeset 5c92103c5e72
/* TFT module * * Author: LoBo (loboris@gmail.com, loboris.github) * * Module supporting SPI TFT displays based on ILI9341 & ILI9488 controllers */ #include <stdio.h> #include <errno.h> #include <sys/stat.h> #include <string.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "esp_system.h" #include "tft.h" #include "time.h" #include <math.h> #include "rom/tjpgd.h" #include "esp_heap_caps.h" #include "tftspi.h" #include "vnc-server.h" #define DEG_TO_RAD 0.01745329252 #define RAD_TO_DEG 57.295779513 #define deg_to_rad 0.01745329252 + 3.14159265359 #define swap(a, b) { int16_t t = a; a = b; b = t; } #define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt))) #if !defined(max) #define max(A,B) ( (A) > (B) ? (A):(B)) #endif #if !defined(min) #define min(A,B) ( (A) < (B) ? (A):(B)) #endif // Embedded fonts extern uint8_t tft_SmallFont[]; extern uint8_t tft_DefaultFont[]; extern uint8_t tft_Dejavu18[]; extern uint8_t tft_Dejavu24[]; extern uint8_t tft_Ubuntu16[]; extern uint8_t tft_Comic24[]; extern uint8_t tft_minya24[]; extern uint8_t tft_tooney32[]; extern uint8_t tft_def_small[]; // ==== Color definitions constants ============== const color_t TFT_BLACK = { 0, 0, 0 }; ///< Black const color_t TFT_NAVY = { 0, 0, 128 }; ///< Navy blue const color_t TFT_DARKGREEN = { 0, 128, 0 }; ///< Dark green const color_t TFT_DARKCYAN = { 0, 128, 128 }; ///< Dark cyan const color_t TFT_MAROON = { 128, 0, 0 }; ///< Maroon red const color_t TFT_PURPLE = { 128, 0, 128 }; ///< Purple const color_t TFT_OLIVE = { 128, 128, 0 }; ///< Olive const color_t TFT_LIGHTGREY = { 192, 192, 192 }; ///< Light gray const color_t TFT_DARKGREY = { 128, 128, 128 }; ///< Dark gray const color_t TFT_BLUE = { 0, 0, 255 }; ///< Blue const color_t TFT_GREEN = { 0, 255, 0 }; ///< Green const color_t TFT_CYAN = { 0, 255, 255 }; ///< Cyan const color_t TFT_RED = { 255, 0, 0 }; ///< Red const color_t TFT_MAGENTA = { 255, 0, 255 }; ///< Magenta const color_t TFT_YELLOW = { 255, 255, 0 }; ///< Yellow const color_t TFT_WHITE = { 255, 255, 255 }; ///< White const color_t TFT_ORANGE = { 255, 164, 0 }; ///< Orange const color_t TFT_GREENYELLOW = { 172, 255, 44 }; ///< Green-yellow const color_t TFT_PINK = { 255, 192, 202 }; ///< Pink // =============================================== // ============================================================== // ==== Set default values of global variables ================== uint8_t orientation = LANDSCAPE;// screen orientation uint16_t font_rotate = 0; // font rotation uint8_t font_transparent = 0; uint8_t font_forceFixed = 0; uint8_t text_wrap = 0; // character wrapping to new line color_t _fg = { 0, 255, 0}; color_t _bg = { 0, 0, 0}; uint8_t image_debug = 0; float _angleOffset = DEFAULT_ANGLE_OFFSET; int TFT_X = 0; int TFT_Y = 0; uint16_t tp_xleft = 300; uint16_t tp_xright = 3550; uint16_t tp_ytop = 3800; uint16_t tp_ybottom = 300; dispWin_t dispWin = { .x1 = 0, .y1 = 0, .x2 = DEFAULT_TFT_DISPLAY_WIDTH -1, .y2 = DEFAULT_TFT_DISPLAY_HEIGHT -1, }; Font cfont = { .font = tft_DefaultFont, .x_size = 0, .y_size = 0x0B, .offset = 0, .numchars = 95, .bitmap = 1, }; uint8_t font_buffered_char = 1; uint8_t font_line_space = 0; // ============================================================== typedef struct { uint8_t charCode; int adjYOffset; int width; int height; int xOffset; int xDelta; uint16_t dataPtr; } propFont; static dispWin_t dispWinTemp; static uint8_t *userfont = NULL; static int TFT_OFFSET = 0; static propFont fontChar; // ========================================================================= // ** All drawings are clipped to 'dispWin' ** // ** All x,y coordinates in public functions are relative to clip window ** // =========== : Public functions // ----------- : Local functions // ========================================================================= // draw color pixel on screen //------------------------------------------------------------------------ static void _drawPixel(int16_t x, int16_t y, color_t color, uint8_t sel) { if ((x < dispWin.x1) || (y < dispWin.y1) || (x > dispWin.x2) || (y > dispWin.y2)) return; drawPixel(x, y, color, sel); VncDrawPixel(x, y, VNC_RGB2COL(color.r, color.g, color.b)); } //==================================================================== void TFT_drawPixel(int16_t x, int16_t y, color_t color, uint8_t sel) { _drawPixel(x+dispWin.x1, y+dispWin.y1, color, sel); } //=========================================== color_t TFT_readPixel(int16_t x, int16_t y) { if ((x < dispWin.x1) || (y < dispWin.y1) || (x > dispWin.x2) || (y > dispWin.y2)) return TFT_BLACK; return readPixel(x, y); } //-------------------------------------------------------------------------- static void _drawFastVLine(int16_t x, int16_t y, int16_t h, color_t color) { // clipping if ((x < dispWin.x1) || (x > dispWin.x2) || (y > dispWin.y2)) return; if (y < dispWin.y1) { h -= (dispWin.y1 - y); y = dispWin.y1; } if (h < 0) h = 0; if ((y + h) > (dispWin.y2+1)) h = dispWin.y2 - y + 1; if (h == 0) h = 1; TFT_pushColorRep(x, y, x, y+h-1, color, (uint32_t)h); VncDrawVertLine(x, y, y+h-1, VNC_RGB2COL(color.r, color.g, color.b)); } //-------------------------------------------------------------------------- static void _drawFastHLine(int16_t x, int16_t y, int16_t w, color_t color) { // clipping if ((y < dispWin.y1) || (x > dispWin.x2) || (y > dispWin.y2)) return; if (x < dispWin.x1) { w -= (dispWin.x1 - x); x = dispWin.x1; } if (w < 0) w = 0; if ((x + w) > (dispWin.x2+1)) w = dispWin.x2 - x + 1; if (w == 0) w = 1; TFT_pushColorRep(x, y, x+w-1, y, color, (uint32_t)w); VncDrawHorzLine(x, x+w-1, y, VNC_RGB2COL(color.r, color.g, color.b)); } //====================================================================== void TFT_drawFastVLine(int16_t x, int16_t y, int16_t h, color_t color) { _drawFastVLine(x+dispWin.x1, y+dispWin.y1, h, color); } //====================================================================== void TFT_drawFastHLine(int16_t x, int16_t y, int16_t w, color_t color) { _drawFastHLine(x+dispWin.x1, y+dispWin.y1, w, color); } // Bresenham's algorithm - thx wikipedia - speed enhanced by Bodmer this uses // the eficient FastH/V Line draw routine for segments of 2 pixels or more //---------------------------------------------------------------------------------- static void _drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, color_t color) { if (x0 == x1) { if (y0 <= y1) _drawFastVLine(x0, y0, y1-y0, color); else _drawFastVLine(x0, y1, y0-y1, color); return; } if (y0 == y1) { if (x0 <= x1) _drawFastHLine(x0, y0, x1-x0, color); else _drawFastHLine(x1, y0, x0-x1, color); return; } int steep = 0; if (abs(y1 - y0) > abs(x1 - x0)) steep = 1; if (steep) { swap(x0, y0); swap(x1, y1); } if (x0 > x1) { swap(x0, x1); swap(y0, y1); } int16_t dx = x1 - x0, dy = abs(y1 - y0); int16_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, 1); 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, 1); else _drawFastHLine(xs, y0, dlen, color); dlen = 0; y0 += ystep; xs = x0 + 1; } } if (dlen) _drawFastHLine(xs, y0, dlen, color); } } //============================================================================== void TFT_drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, color_t color) { _drawLine(x0+dispWin.x1, y0+dispWin.y1, x1+dispWin.x1, y1+dispWin.y1, color); } // fill a rectangle //-------------------------------------------------------------------------------- static void _fillRect(int16_t x, int16_t y, int16_t w, int16_t h, color_t color) { // clipping if ((x >= dispWin.x2) || (y > dispWin.y2)) return; if (x < dispWin.x1) { w -= (dispWin.x1 - x); x = dispWin.x1; } if (y < dispWin.y1) { h -= (dispWin.y1 - y); y = dispWin.y1; } if (w < 0) w = 0; if (h < 0) h = 0; if ((x + w) > (dispWin.x2+1)) w = dispWin.x2 - x + 1; if ((y + h) > (dispWin.y2+1)) h = dispWin.y2 - y + 1; if (w == 0) w = 1; if (h == 0) h = 1; TFT_pushColorRep(x, y, x+w-1, y+h-1, color, (uint32_t)(h*w)); VncFillRect(x, y, x+w-1, y+h-1, VNC_RGB2COL(color.r, color.g, color.b)); } //============================================================================ void TFT_fillRect(int16_t x, int16_t y, int16_t w, int16_t h, color_t color) { _fillRect(x+dispWin.x1, y+dispWin.y1, w, h, color); } //================================== void TFT_fillScreen(color_t color) { TFT_pushColorRep(0, 0, _width-1, _height-1, color, (uint32_t)(_height*_width)); VncCls(VNC_RGB2COL(color.r, color.g, color.b)); } //================================== void TFT_fillWindow(color_t color) { TFT_pushColorRep(dispWin.x1, dispWin.y1, dispWin.x2, dispWin.y2, color, (uint32_t)((dispWin.x2-dispWin.x1+1) * (dispWin.y2-dispWin.y1+1))); VncFillRect(dispWin.x1, dispWin.y1, dispWin.x2, dispWin.y2, VNC_RGB2COL(color.r, color.g, color.b)); } // ^^^============= Basics drawing functions ================================^^^ // ================ Graphics drawing functions ================================== //----------------------------------------------------------------------------------- static void _drawRect(uint16_t x1,uint16_t y1,uint16_t w,uint16_t h, color_t color) { _drawFastHLine(x1,y1,w, color); _drawFastVLine(x1+w-1,y1,h, color); _drawFastHLine(x1,y1+h-1,w, color); _drawFastVLine(x1,y1,h, color); } //=============================================================================== void TFT_drawRect(uint16_t x1,uint16_t y1,uint16_t w,uint16_t h, color_t color) { _drawRect(x1+dispWin.x1, y1+dispWin.y1, w, h, color); } //------------------------------------------------------------------------------------------------- static void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, color_t color) { int16_t f = 1 - r; int16_t ddF_x = 1; int16_t ddF_y = -2 * r; int16_t x = 0; int16_t y = r; disp_select(); while (x < y) { if (f >= 0) { y--; ddF_y += 2; f += ddF_y; } x++; ddF_x += 2; f += ddF_x; if (cornername & 0x4) { _drawPixel(x0 + x, y0 + y, color, 0); _drawPixel(x0 + y, y0 + x, color, 0); } if (cornername & 0x2) { _drawPixel(x0 + x, y0 - y, color, 0); _drawPixel(x0 + y, y0 - x, color, 0); } if (cornername & 0x8) { _drawPixel(x0 - y, y0 + x, color, 0); _drawPixel(x0 - x, y0 + y, color, 0); } if (cornername & 0x1) { _drawPixel(x0 - y, y0 - x, color, 0); _drawPixel(x0 - x, y0 - y, color, 0); } } disp_deselect(); } // Used to do circles and roundrects //---------------------------------------------------------------------------------------------------------------- static void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, color_t color) { int16_t f = 1 - r; int16_t ddF_x = 1; int16_t ddF_y = -2 * r; int16_t x = 0; int16_t y = r; int16_t ylm = x0 - r; while (x < y) { if (f >= 0) { if (cornername & 0x1) _drawFastVLine(x0 + y, y0 - x, 2 * x + 1 + delta, color); if (cornername & 0x2) _drawFastVLine(x0 - y, y0 - x, 2 * x + 1 + delta, color); ylm = x0 - y; y--; ddF_y += 2; f += ddF_y; } x++; ddF_x += 2; f += ddF_x; if ((x0 - x) > ylm) { if (cornername & 0x1) _drawFastVLine(x0 + x, y0 - y, 2 * y + 1 + delta, color); if (cornername & 0x2) _drawFastVLine(x0 - x, y0 - y, 2 * y + 1 + delta, color); } } } // Draw a rounded rectangle //============================================================================================= void TFT_drawRoundRect(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t r, color_t color) { x += dispWin.x1; y += dispWin.y1; // smarter version _drawFastHLine(x + r, y, w - 2 * r, color); // Top _drawFastHLine(x + r, y + h - 1, w - 2 * r, color); // Bottom _drawFastVLine(x, y + r, h - 2 * r, color); // Left _drawFastVLine(x + w - 1, y + r, h - 2 * r, color); // Right // draw four corners drawCircleHelper(x + r, y + r, r, 1, color); drawCircleHelper(x + w - r - 1, y + r, r, 2, color); drawCircleHelper(x + w - r - 1, y + h - r - 1, r, 4, color); drawCircleHelper(x + r, y + h - r - 1, r, 8, color); } // Fill a rounded rectangle //============================================================================================= void TFT_fillRoundRect(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t r, color_t color) { x += dispWin.x1; y += dispWin.y1; // smarter version _fillRect(x + r, y, w - 2 * r, h, color); // draw four corners fillCircleHelper(x + w - r - 1, y + r, r, 1, h - 2 * r - 1, color); fillCircleHelper(x + r, y + r, r, 2, h - 2 * r - 1, color); } //----------------------------------------------------------------------------------------------- // Draw a triangle //-------------------------------------------------------------------------------------------------------------------- static void _drawTriangle(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, color_t color) { _drawLine(x0, y0, x1, y1, color); _drawLine(x1, y1, x2, y2, color); _drawLine(x2, y2, x0, y0, color); } // Fill a triangle //-------------------------------------------------------------------------------------------------------------------- static void _fillTriangle(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, color_t color) { int16_t a, b, y, last; // Sort coordinates by Y order (y2 >= y1 >= y0) if (y0 > y1) { swap(y0, y1); swap(x0, x1); } if (y1 > y2) { swap(y2, y1); swap(x2, x1); } if (y0 > y1) { swap(y0, y1); swap(x0, x1); } if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing a = b = x0; if(x1 < a) a = x1; else if(x1 > b) b = x1; if(x2 < a) a = x2; else if(x2 > b) b = x2; _drawFastHLine(a, y0, b-a+1, color); return; } int16_t dx01 = x1 - x0, dy01 = y1 - y0, dx02 = x2 - x0, dy02 = y2 - y0, dx12 = x2 - x1, dy12 = y2 - y1; int32_t sa = 0, sb = 0; // For upper part of triangle, find scanline crossings for segments // 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1 // is included here (and second loop will be skipped, avoiding a /0 // error there), otherwise scanline y1 is skipped here and handled // in the second loop...which also avoids a /0 error here if y0=y1 // (flat-topped triangle). if(y1 == y2) last = y1; // Include y1 scanline else last = y1-1; // Skip it for(y=y0; y<=last; y++) { a = x0 + sa / dy01; b = x0 + sb / dy02; sa += dx01; sb += dx02; /* longhand: a = x0 + (x1 - x0) * (y - y0) / (y1 - y0); b = x0 + (x2 - x0) * (y - y0) / (y2 - y0); */ if(a > b) swap(a,b); _drawFastHLine(a, y, b-a+1, color); } // For lower part of triangle, find scanline crossings for segments // 0-2 and 1-2. This loop is skipped if y1=y2. sa = dx12 * (y - y1); sb = dx02 * (y - y0); for(; y<=y2; y++) { a = x1 + sa / dy12; b = x0 + sb / dy02; sa += dx12; sb += dx02; /* longhand: a = x1 + (x2 - x1) * (y - y1) / (y2 - y1); b = x0 + (x2 - x0) * (y - y0) / (y2 - y0); */ if(a > b) swap(a,b); _drawFastHLine(a, y, b-a+1, color); } } //==================================================================== void TFT_drawCircle(int16_t x, int16_t y, int radius, color_t color) { x += dispWin.x1; y += dispWin.y1; int f = 1 - radius; int ddF_x = 1; int ddF_y = -2 * radius; int x1 = 0; int y1 = radius; disp_select(); _drawPixel(x, y + radius, color, 0); _drawPixel(x, y - radius, color, 0); _drawPixel(x + radius, y, color, 0); _drawPixel(x - radius, y, color, 0); while(x1 < y1) { if (f >= 0) { y1--; ddF_y += 2; f += ddF_y; } x1++; ddF_x += 2; f += ddF_x; _drawPixel(x + x1, y + y1, color, 0); _drawPixel(x - x1, y + y1, color, 0); _drawPixel(x + x1, y - y1, color, 0); _drawPixel(x - x1, y - y1, color, 0); _drawPixel(x + y1, y + x1, color, 0); _drawPixel(x - y1, y + x1, color, 0); _drawPixel(x + y1, y - x1, color, 0); _drawPixel(x - y1, y - x1, color, 0); } disp_deselect(); } //==================================================================== void TFT_fillCircle(int16_t x, int16_t y, int radius, color_t color) { x += dispWin.x1; y += dispWin.y1; _drawFastVLine(x, y-radius, 2*radius+1, color); fillCircleHelper(x, y, radius, 3, 0, color); } // ================ Font and string functions ================================== //-------------------------------------------------------- static int load_file_font(const char * fontfile, int info) { int err = 0; char err_msg[256] = {'\0'}; if (userfont != NULL) { free(userfont); userfont = NULL; } struct stat sb; // Open the file FILE *fhndl = fopen(fontfile, "r"); if (!fhndl) { sprintf(err_msg, "Error opening font file '%s'", fontfile); err = 1; goto exit; } // Get file size if (stat(fontfile, &sb) != 0) { sprintf(err_msg, "Error getting font file size"); err = 2; goto exit; } int fsize = sb.st_size; if (fsize < 30) { sprintf(err_msg, "Error getting font file size"); err = 3; goto exit; } userfont = malloc(fsize+4); if (userfont == NULL) { sprintf(err_msg, "Font memory allocation error"); fclose(fhndl); err = 4; goto exit; } int read = fread(userfont, 1, fsize, fhndl); fclose(fhndl); if (read != fsize) { sprintf(err_msg, "Font read error"); err = 5; goto exit; } userfont[read] = 0; if (strstr((char *)(userfont+read-8), "RPH_font") == NULL) { sprintf(err_msg, "Font ID not found"); err = 6; goto exit; } // Check size int size = 0; int numchar = 0; int width = userfont[0]; int height = userfont[1]; uint8_t first = 255; uint8_t last = 0; //int offst = 0; int pminwidth = 255; int pmaxwidth = 0; if (width != 0) { // Fixed font numchar = userfont[3]; first = userfont[2]; last = first + numchar - 1; size = ((width * height * numchar) / 8) + 4; } else { // Proportional font size = 4; // point at first char data uint8_t charCode; int charwidth; do { charCode = userfont[size]; charwidth = userfont[size+2]; if (charCode != 0xFF) { numchar++; if (charwidth != 0) size += ((((charwidth * userfont[size+3])-1) / 8) + 7); else size += 6; if (info) { if (charwidth > pmaxwidth) pmaxwidth = charwidth; if (charwidth < pminwidth) pminwidth = charwidth; if (charCode < first) first = charCode; if (charCode > last) last = charCode; } } else size++; } while ((size < (read-8)) && (charCode != 0xFF)); } if (size != (read-8)) { sprintf(err_msg, "Font size error: found %d expected %d)", size, (read-8)); err = 7; goto exit; } if (info) { if (width != 0) { printf("Fixed width font:\r\n size: %d width: %d height: %d characters: %d (%d~%d)\n", size, width, height, numchar, first, last); } else { printf("Proportional font:\r\n size: %d width: %d~%d height: %d characters: %d (%d~%d)\n", size, pminwidth, pmaxwidth, height, numchar, first, last); } } exit: if (err) { if (userfont) { free(userfont); userfont = NULL; } if (info) printf("Error: %d [%s]\r\n", err, err_msg); } return err; } // ----------------------------------------------------------------------------------------- // Individual Proportional Font Character Format: // ----------------------------------------------------------------------------------------- // Character Code // yOffset (start Y of visible pixels) // Width (width of the visible pixels) // Height (height of the visible pixels) // xOffset (start X of visible pixels) // xDelta (the distance to move the cursor. Effective width of the character.) // Data[n] // ----------------------------------------------------------------------------------------- //--------------------------------------------------------------------------------------------- // Character drawing rectangle is (0, 0) (xDelta-1, cfont.y_size-1) // Character visible pixels rectangle is (xOffset, yOffset) (xOffset+Width-1, yOffset+Height-1) //--------------------------------------------------------------------------------------------- //---------------------------------- // Set max width & height of the proportional font //----------------------------- static void getMaxWidthHeight() { uint16_t tempPtr = 4; // point at first char data uint8_t cc, cw, ch, cd, cy; cfont.numchars = 0; cfont.max_x_size = 0; cc = cfont.font[tempPtr++]; while (cc != 0xFF) { cfont.numchars++; cy = cfont.font[tempPtr++]; cw = cfont.font[tempPtr++]; ch = cfont.font[tempPtr++]; tempPtr++; cd = cfont.font[tempPtr++]; cy += ch; if (cw > cfont.max_x_size) cfont.max_x_size = cw; if (cd > cfont.max_x_size) cfont.max_x_size = cd; if (ch > cfont.y_size) cfont.y_size = ch; if (cy > cfont.y_size) cfont.y_size = cy; if (cw != 0) { // packed bits tempPtr += (((cw * ch)-1) / 8) + 1; } cc = cfont.font[tempPtr++]; } cfont.size = tempPtr; } // Return the Glyph data for an individual character in the proportional font //------------------------------------ static uint8_t getCharPtr(uint8_t c) { uint16_t tempPtr = 4; // point at first char data do { fontChar.charCode = cfont.font[tempPtr++]; if (fontChar.charCode == 0xFF) return 0; fontChar.adjYOffset = cfont.font[tempPtr++]; fontChar.width = cfont.font[tempPtr++]; fontChar.height = cfont.font[tempPtr++]; fontChar.xOffset = cfont.font[tempPtr++]; fontChar.xOffset = fontChar.xOffset < 0x80 ? fontChar.xOffset : -(0xFF - fontChar.xOffset); fontChar.xDelta = cfont.font[tempPtr++]; if (c != fontChar.charCode && fontChar.charCode != 0xFF) { if (fontChar.width != 0) { // packed bits tempPtr += (((fontChar.width * fontChar.height)-1) / 8) + 1; } } } while ((c != fontChar.charCode) && (fontChar.charCode != 0xFF)); fontChar.dataPtr = tempPtr; if (c == fontChar.charCode) { if (font_forceFixed > 0) { // fix width & offset for forced fixed width fontChar.xDelta = cfont.max_x_size; fontChar.xOffset = (fontChar.xDelta - fontChar.width) / 2; } } else return 0; return 1; } //=================================================== void TFT_setFont(uint8_t font, const char *font_file) { cfont.font = NULL; if (font == FONT_7SEG) { cfont.bitmap = 2; cfont.x_size = 24; cfont.y_size = 6; cfont.offset = 0; cfont.color = _fg; } else { if (font == USER_FONT) { if (load_file_font(font_file, 0) != 0) cfont.font = tft_DefaultFont; else cfont.font = userfont; } else if (font == DEJAVU18_FONT) cfont.font = tft_Dejavu18; else if (font == DEJAVU24_FONT) cfont.font = tft_Dejavu24; else if (font == UBUNTU16_FONT) cfont.font = tft_Ubuntu16; else if (font == COMIC24_FONT) cfont.font = tft_Comic24; else if (font == MINYA24_FONT) cfont.font = tft_minya24; else if (font == TOONEY32_FONT) cfont.font = tft_tooney32; else if (font == SMALL_FONT) cfont.font = tft_SmallFont; else if (font == DEF_SMALL_FONT) cfont.font = tft_def_small; else cfont.font = tft_DefaultFont; cfont.bitmap = 1; cfont.x_size = cfont.font[0]; cfont.y_size = cfont.font[1]; if (cfont.x_size > 0) { cfont.offset = cfont.font[2]; cfont.numchars = cfont.font[3]; cfont.size = cfont.x_size * cfont.y_size * cfont.numchars; } else { cfont.offset = 4; getMaxWidthHeight(); } //_testFont(); } } // ----------------------------------------------------------------------------------------- // Individual Proportional Font Character Format: // ----------------------------------------------------------------------------------------- // Character Code // yOffset (start Y of visible pixels) // Width (width of the visible pixels) // Height (height of the visible pixels) // xOffset (start X of visible pixels) // xDelta (the distance to move the cursor. Effective width of the character.) // Data[n] // ----------------------------------------------------------------------------------------- //--------------------------------------------------------------------------------------------- // Character drawing rectangle is (0, 0) (xDelta-1, cfont.y_size-1) // Character visible pixels rectangle is (xOffset, yOffset) (xOffset+Width-1, yOffset+Height-1) //--------------------------------------------------------------------------------------------- // print non-rotated proportional character // character is already in fontChar //---------------------------------------------- static int printProportionalChar(int x, int y) { uint8_t ch = 0; int i, j, char_width; char_width = ((fontChar.width > fontChar.xDelta) ? fontChar.width : fontChar.xDelta); if ((font_buffered_char) && (!font_transparent)) { int len, bufPos; // === buffer Glyph data for faster sending === len = char_width * cfont.y_size; color_t *color_line = heap_caps_malloc(len*3, MALLOC_CAP_DMA); if (color_line) { // fill with background color for (int n = 0; n < len; n++) { color_line[n] = _bg; } // set character pixels to foreground color uint8_t mask = 0x80; for (j = 0; j < fontChar.height; j++) { for (i = 0; i < fontChar.width; i++) { if (((i + (j*fontChar.width)) % 8) == 0) { mask = 0x80; ch = cfont.font[fontChar.dataPtr++]; } if ((ch & mask) != 0) { // visible pixel bufPos = ((j + fontChar.adjYOffset) * char_width) + (fontChar.xOffset + i); // bufY + bufX color_line[bufPos] = _fg; VncDrawPixel(x + (fontChar.xOffset + i), y + (j + fontChar.adjYOffset), VNC_RGB2COL(_fg.r, _fg.g, _fg.b)); } else { VncDrawPixel(x + (fontChar.xOffset + i), y + (j + fontChar.adjYOffset), VNC_RGB2COL(_bg.r, _bg.g, _bg.b)); } mask >>= 1; } } // send to display in one transaction disp_select(); send_data(x, y, x+char_width-1, y+cfont.y_size-1, len, color_line); disp_deselect(); free(color_line); return char_width; } } int cx, cy; if (!font_transparent) _fillRect(x, y, char_width+1, cfont.y_size, _bg); // draw Glyph uint8_t mask = 0x80; disp_select(); for (j=0; j < fontChar.height; j++) { for (i=0; i < fontChar.width; i++) { if (((i + (j*fontChar.width)) % 8) == 0) { mask = 0x80; ch = cfont.font[fontChar.dataPtr++]; } if ((ch & mask) !=0) { cx = (uint16_t)(x+fontChar.xOffset+i); cy = (uint16_t)(y+j+fontChar.adjYOffset); _drawPixel(cx, cy, _fg, 0); } mask >>= 1; } } disp_deselect(); return char_width; } // non-rotated fixed width character //---------------------------------------------- static void printChar(uint8_t c, int x, int y) { uint8_t i, j, ch, fz, mask; uint16_t k, temp, cx, cy, len; // fz = bytes per char row fz = cfont.x_size/8; if (cfont.x_size % 8) fz++; // get character position in buffer temp = ((c-cfont.offset)*((fz)*cfont.y_size))+4; if ((font_buffered_char) && (!font_transparent)) { // === buffer Glyph data for faster sending === len = cfont.x_size * cfont.y_size; color_t *color_line = heap_caps_malloc(len*3, MALLOC_CAP_DMA); if (color_line) { // fill with background color for (int n = 0; n < len; n++) { color_line[n] = _bg; } // set character pixels to foreground color for (j = 0; j < cfont.y_size; j++) { for (k = 0; k < fz; k++) { ch = cfont.font[temp + k]; mask = 0x80; for (i = 0; i < 8; i++) { if ((ch & mask) !=0) { color_line[(j*cfont.x_size) + (i+(k*8))] = _fg; VncDrawPixel(x+i+(k*8), y+j, VNC_RGB2COL(_fg.r, _fg.g, _fg.b)); } else { VncDrawPixel(x+i+(k*8), y+j, VNC_RGB2COL(_bg.r, _bg.g, _bg.b)); } mask >>= 1; } } temp += (fz); } // send to display in one transaction disp_select(); send_data(x, y, x+cfont.x_size-1, y+cfont.y_size-1, len, color_line); disp_deselect(); free(color_line); return; } } if (!font_transparent) _fillRect(x, y, cfont.x_size, cfont.y_size, _bg); disp_select(); for (j = 0; j < cfont.y_size; j++) { for (k = 0; k < fz; k++) { ch = cfont.font[temp + k]; mask = 0x80; for (i = 0; i < 8; i++) { if ((ch & mask) !=0) { cx = (uint16_t)(x+i+(k*8)); cy = (uint16_t)(y+j); _drawPixel(cx, cy, _fg, 0); } mask >>= 1; } } temp += (fz); } disp_deselect(); } // print rotated proportional character // character is already in fontChar //--------------------------------------------------- static int rotatePropChar(int x, int y, int offset) { uint8_t ch = 0; double radian = font_rotate * DEG_TO_RAD; float cos_radian = cos(radian); float sin_radian = sin(radian); uint8_t mask = 0x80; disp_select(); for (int j=0; j < fontChar.height; j++) { for (int i=0; i < fontChar.width; i++) { if (((i + (j*fontChar.width)) % 8) == 0) { mask = 0x80; ch = cfont.font[fontChar.dataPtr++]; } int newX = (int)(x + (((offset + i) * cos_radian) - ((j+fontChar.adjYOffset)*sin_radian))); int newY = (int)(y + (((j+fontChar.adjYOffset) * cos_radian) + ((offset + i) * sin_radian))); if ((ch & mask) != 0) _drawPixel(newX,newY,_fg, 0); else if (!font_transparent) _drawPixel(newX,newY,_bg, 0); mask >>= 1; } } disp_deselect(); return fontChar.xDelta+1; } // rotated fixed width character //-------------------------------------------------------- static void rotateChar(uint8_t c, int x, int y, int pos) { uint8_t i,j,ch,fz,mask; uint16_t temp; int newx,newy; double radian = font_rotate*0.0175; float cos_radian = cos(radian); float sin_radian = sin(radian); int zz; if( cfont.x_size < 8 ) fz = cfont.x_size; else fz = cfont.x_size/8; temp=((c-cfont.offset)*((fz)*cfont.y_size))+4; disp_select(); for (j=0; j<cfont.y_size; j++) { for (zz=0; zz<(fz); zz++) { ch = cfont.font[temp+zz]; mask = 0x80; for (i=0; i<8; i++) { newx=(int)(x+(((i+(zz*8)+(pos*cfont.x_size))*cos_radian)-((j)*sin_radian))); newy=(int)(y+(((j)*cos_radian)+((i+(zz*8)+(pos*cfont.x_size))*sin_radian))); if ((ch & mask) != 0) _drawPixel(newx,newy,_fg, 0); else if (!font_transparent) _drawPixel(newx,newy,_bg, 0); mask >>= 1; } } temp+=(fz); } disp_deselect(); // calculate x,y for the next char TFT_X = (int)(x + ((pos+1) * cfont.x_size * cos_radian)); TFT_Y = (int)(y + ((pos+1) * cfont.x_size * sin_radian)); } //---------------------- static int _7seg_width() { return (2 * (2 * cfont.y_size + 1)) + cfont.x_size; } //----------------------- static int _7seg_height() { return (3 * (2 * cfont.y_size + 1)) + (2 * cfont.x_size); } // Returns the string width in pixels. // Useful for positions strings on the screen. //=============================== int TFT_getStringWidth(char* str) { int strWidth = 0; if (cfont.bitmap == 2) strWidth = ((_7seg_width()+2) * strlen(str)) - 2; // 7-segment font else if (cfont.x_size != 0) strWidth = strlen(str) * cfont.x_size; // fixed width font else { // calculate the width of the string of proportional characters char* tempStrptr = str; while (*tempStrptr != 0) { if (getCharPtr(*tempStrptr++)) { strWidth += (((fontChar.width > fontChar.xDelta) ? fontChar.width : fontChar.xDelta) + 1); } } strWidth--; } return strWidth; } //=============================================== void TFT_clearStringRect(int x, int y, char *str) { int w = TFT_getStringWidth(str); int h = TFT_getfontheight(); TFT_fillRect(x+dispWin.x1, y+dispWin.y1, w, h, _bg); } //============================================================================== /** * bit-encoded bar position of all digits' bcd segments * * 6 * +-----+ * 3 | . | 2 * +--5--+ * 1 | . | 0 * +--.--+ * 4 */ static const uint16_t font_bcd[] = { 0x200, // 0010 0000 0000 // - 0x080, // 0000 1000 0000 // . 0x06C, // 0100 0110 1100 // /, degree 0x05f, // 0000 0101 1111, // 0 0x005, // 0000 0000 0101, // 1 0x076, // 0000 0111 0110, // 2 0x075, // 0000 0111 0101, // 3 0x02d, // 0000 0010 1101, // 4 0x079, // 0000 0111 1001, // 5 0x07b, // 0000 0111 1011, // 6 0x045, // 0000 0100 0101, // 7 0x07f, // 0000 0111 1111, // 8 0x07d, // 0000 0111 1101 // 9 0x900 // 1001 0000 0000 // : }; //----------------------------------------------------------------------------------------------- static void barVert(int16_t x, int16_t y, int16_t w, int16_t l, color_t color, color_t outline) { _fillTriangle(x+1, y+2*w, x+w, y+w+1, x+2*w-1, y+2*w, color); _fillTriangle(x+1, y+2*w+l+1, x+w, y+3*w+l, x+2*w-1, y+2*w+l+1, color); _fillRect(x, y+2*w+1, 2*w+1, l, color); if (cfont.offset) { _drawTriangle(x+1, y+2*w, x+w, y+w+1, x+2*w-1, y+2*w, outline); _drawTriangle(x+1, y+2*w+l+1, x+w, y+3*w+l, x+2*w-1, y+2*w+l+1, outline); _drawRect(x, y+2*w+1, 2*w+1, l, outline); } } //---------------------------------------------------------------------------------------------- static void barHor(int16_t x, int16_t y, int16_t w, int16_t l, color_t color, color_t outline) { _fillTriangle(x+2*w, y+2*w-1, x+w+1, y+w, x+2*w, y+1, color); _fillTriangle(x+2*w+l+1, y+2*w-1, x+3*w+l, y+w, x+2*w+l+1, y+1, color); _fillRect(x+2*w+1, y, l, 2*w+1, color); if (cfont.offset) { _drawTriangle(x+2*w, y+2*w-1, x+w+1, y+w, x+2*w, y+1, outline); _drawTriangle(x+2*w+l+1, y+2*w-1, x+3*w+l, y+w, x+2*w+l+1, y+1, outline); _drawRect(x+2*w+1, y, l, 2*w+1, outline); } } //-------------------------------------------------------------------------------------------- static void _draw7seg(int16_t x, int16_t y, int8_t num, int16_t w, int16_t l, color_t color) { /* TODO: clipping */ if (num < 0x2D || num > 0x3A) return; int16_t c = font_bcd[num-0x2D]; int16_t d = 2*w+l+1; // === Clear unused segments === if (!(c & 0x001)) barVert(x+d, y+d, w, l, _bg, _bg); if (!(c & 0x002)) barVert(x, y+d, w, l, _bg, _bg); if (!(c & 0x004)) barVert(x+d, y, w, l, _bg, _bg); if (!(c & 0x008)) barVert(x, y, w, l, _bg, _bg); if (!(c & 0x010)) barHor(x, y+2*d, w, l, _bg, _bg); if (!(c & 0x020)) barHor(x, y+d, w, l, _bg, _bg); if (!(c & 0x040)) barHor(x, y, w, l, _bg, _bg); if (!(c & 0x080)) { // low point _fillRect(x+(d/2), y+2*d, 2*w+1, 2*w+1, _bg); if (cfont.offset) _drawRect(x+(d/2), y+2*d, 2*w+1, 2*w+1, _bg); } if (!(c & 0x100)) { // down middle point _fillRect(x+(d/2), y+d+2*w+1, 2*w+1, l/2, _bg); if (cfont.offset) _drawRect(x+(d/2), y+d+2*w+1, 2*w+1, l/2, _bg); } if (!(c & 0x800)) { // up middle point _fillRect(x+(d/2), y+(2*w)+1+(l/2), 2*w+1, l/2, _bg); if (cfont.offset) _drawRect(x+(d/2), y+(2*w)+1+(l/2), 2*w+1, l/2, _bg); } if (!(c & 0x200)) { // middle, minus _fillRect(x+2*w+1, y+d, l, 2*w+1, _bg); if (cfont.offset) _drawRect(x+2*w+1, y+d, l, 2*w+1, _bg); } // === Draw used segments === if (c & 0x001) barVert(x+d, y+d, w, l, color, cfont.color); // down right if (c & 0x002) barVert(x, y+d, w, l, color, cfont.color); // down left if (c & 0x004) barVert(x+d, y, w, l, color, cfont.color); // up right if (c & 0x008) barVert(x, y, w, l, color, cfont.color); // up left if (c & 0x010) barHor(x, y+2*d, w, l, color, cfont.color); // down if (c & 0x020) barHor(x, y+d, w, l, color, cfont.color); // middle if (c & 0x040) barHor(x, y, w, l, color, cfont.color); // up if (c & 0x080) { // low point _fillRect(x+(d/2), y+2*d, 2*w+1, 2*w+1, color); if (cfont.offset) _drawRect(x+(d/2), y+2*d, 2*w+1, 2*w+1, cfont.color); } if (c & 0x100) { // down middle point _fillRect(x+(d/2), y+d+2*w+1, 2*w+1, l/2, color); if (cfont.offset) _drawRect(x+(d/2), y+d+2*w+1, 2*w+1, l/2, cfont.color); } if (c & 0x800) { // up middle point _fillRect(x+(d/2), y+(2*w)+1+(l/2), 2*w+1, l/2, color); if (cfont.offset) _drawRect(x+(d/2), y+(2*w)+1+(l/2), 2*w+1, l/2, cfont.color); } if (c & 0x200) { // middle, minus _fillRect(x+2*w+1, y+d, l, 2*w+1, color); if (cfont.offset) _drawRect(x+2*w+1, y+d, l, 2*w+1, cfont.color); } } //============================================================================== //====================================== void TFT_print(char *st, int x, int y) { int stl, i, tmpw, tmph, fh; uint8_t ch; if (cfont.bitmap == 0) return; // wrong font selected // ** Rotated strings cannot be aligned if ((font_rotate != 0) && ((x <= CENTER) || (y <= CENTER))) return; if ((x < LASTX) || (font_rotate == 0)) TFT_OFFSET = 0; if ((x >= LASTX) && (x < LASTY)) x = TFT_X + (x-LASTX); else if (x > CENTER) x += dispWin.x1; if (y >= LASTY) y = TFT_Y + (y-LASTY); else if (y > CENTER) y += dispWin.y1; // ** Get number of characters in string to print stl = strlen(st); // ** Calculate CENTER, RIGHT or BOTTOM position tmpw = TFT_getStringWidth(st); // string width in pixels fh = cfont.y_size; // font height if ((cfont.x_size != 0) && (cfont.bitmap == 2)) { // 7-segment font fh = (3 * (2 * cfont.y_size + 1)) + (2 * cfont.x_size); // 7-seg character height } if (x == RIGHT) x = dispWin.x2 - tmpw + dispWin.x1; else if (x == CENTER) x = (((dispWin.x2 - dispWin.x1 + 1) - tmpw) / 2) + dispWin.x1; if (y == BOTTOM) y = dispWin.y2 - fh + dispWin.y1; else if (y==CENTER) y = (((dispWin.y2 - dispWin.y1 + 1) - (fh/2)) / 2) + dispWin.y1; if (x < dispWin.x1) x = dispWin.x1; if (y < dispWin.y1) y = dispWin.y1; if ((x > dispWin.x2) || (y > dispWin.y2)) return; TFT_X = x; TFT_Y = y; // ** Adjust y position tmph = cfont.y_size; // font height // for non-proportional fonts, char width is the same for all chars tmpw = cfont.x_size; if (cfont.x_size != 0) { if (cfont.bitmap == 2) { // 7-segment font tmpw = _7seg_width(); // character width tmph = _7seg_height(); // character height } } else TFT_OFFSET = 0; // fixed font; offset not needed if ((TFT_Y + tmph - 1) > dispWin.y2) return; int offset = TFT_OFFSET; for (i=0; i<stl; i++) { ch = st[i]; // get string character if (ch == 0x0D) { // === '\r', erase to eol ==== if ((!font_transparent) && (font_rotate==0)) _fillRect(TFT_X, TFT_Y, dispWin.x2+1-TFT_X, tmph, _bg); } else if (ch == 0x0A) { // ==== '\n', new line ==== if (cfont.bitmap == 1) { TFT_Y += tmph + font_line_space; if (TFT_Y > (dispWin.y2-tmph)) break; TFT_X = dispWin.x1; } } else { // ==== other characters ==== if (cfont.x_size == 0) { // for proportional font get character data to 'fontChar' if (getCharPtr(ch)) tmpw = fontChar.xDelta; else continue; } // check if character can be displayed in the current line if ((TFT_X+tmpw) > (dispWin.x2)) { if (text_wrap == 0) break; TFT_Y += tmph + font_line_space; if (TFT_Y > (dispWin.y2-tmph)) break; TFT_X = dispWin.x1; } // Let's print the character if (cfont.x_size == 0) { // == proportional font if (font_rotate == 0) TFT_X += printProportionalChar(TFT_X, TFT_Y) + 1; else { // rotated proportional font offset += rotatePropChar(x, y, offset); TFT_OFFSET = offset; } } else { if (cfont.bitmap == 1) { // == fixed font if ((ch < cfont.offset) || ((ch-cfont.offset) > cfont.numchars)) ch = cfont.offset; if (font_rotate == 0) { printChar(ch, TFT_X, TFT_Y); TFT_X += tmpw; } else rotateChar(ch, x, y, i); } else if (cfont.bitmap == 2) { // == 7-segment font == _draw7seg(TFT_X, TFT_Y, ch, cfont.y_size, cfont.x_size, _fg); TFT_X += (tmpw + 2); } } } } } // ================ Service functions ========================================== // Change the screen rotation. // Input: m new rotation value (0 to 3) //================================= void TFT_setRotation(uint8_t rot) { if (rot > 3) { uint8_t madctl = (rot & 0xF8); // for testing, manually set MADCTL register if (disp_select() == ESP_OK) { disp_spi_transfer_cmd_data(TFT_MADCTL, &madctl, 1); disp_deselect(); } } else { orientation = rot; _tft_setRotation(rot); } dispWin.x1 = 0; dispWin.y1 = 0; dispWin.x2 = _width-1; dispWin.y2 = _height-1; TFT_fillScreen(_bg); } // Select gamma curve // Input: gamma = 0~3 //================================== void TFT_setGammaCurve(uint8_t gm) { uint8_t gamma_curve = 1 << (gm & 0x03); disp_spi_transfer_cmd_data(TFT_CMD_GAMMASET, &gamma_curve, 1); } //===================================================================== void TFT_setclipwin(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) { dispWin.x1 = x1; dispWin.y1 = y1; dispWin.x2 = x2; dispWin.y2 = y2; if (dispWin.x2 >= _width) dispWin.x2 = _width-1; if (dispWin.y2 >= _height) dispWin.y2 = _height-1; if (dispWin.x1 > dispWin.x2) dispWin.x1 = dispWin.x2; if (dispWin.y1 > dispWin.y2) dispWin.y1 = dispWin.y2; } //===================== void TFT_resetclipwin() { dispWin.x2 = _width-1; dispWin.y2 = _height-1; dispWin.x1 = 0; dispWin.y1 = 0; } //========================================================================== void set_7seg_font_atrib(uint8_t l, uint8_t w, int outline, color_t color) { if (cfont.bitmap != 2) return; if (l < 6) l = 6; if (l > 40) l = 40; if (w < 1) w = 1; if (w > (l/2)) w = l/2; if (w > 12) w = 12; cfont.x_size = l; cfont.y_size = w; cfont.offset = outline; cfont.color = color; } //========================================== int TFT_getfontsize(int *width, int* height) { if (cfont.bitmap == 1) { if (cfont.x_size != 0) *width = cfont.x_size; // fixed width font else *width = cfont.max_x_size; // proportional font *height = cfont.y_size; } else if (cfont.bitmap == 2) { // 7-segment font *width = _7seg_width(); *height = _7seg_height(); } else { *width = 0; *height = 0; return 0; } return 1; } //===================== int TFT_getfontheight() { if (cfont.bitmap == 1) return cfont.y_size; // Bitmap font else if (cfont.bitmap == 2) return _7seg_height(); // 7-segment font return 0; } //==================== void TFT_saveClipWin() { dispWinTemp.x1 = dispWin.x1; dispWinTemp.y1 = dispWin.y1; dispWinTemp.x2 = dispWin.x2; dispWinTemp.y2 = dispWin.y2; } //======================= void TFT_restoreClipWin() { dispWin.x1 = dispWinTemp.x1; dispWin.y1 = dispWinTemp.y1; dispWin.x2 = dispWinTemp.x2; dispWin.y2 = dispWinTemp.y2; } // ============= Touch panel functions ========================================= #if USE_TOUCH == TOUCH_TYPE_XPT2046 //------------------------------------------------------- static int tp_get_data_xpt2046(uint8_t type, int samples) { if (ts_spi == NULL) return 0; int n, result, val = 0; uint32_t i = 0; uint32_t vbuf[18]; uint32_t minval, maxval, dif; if (samples < 3) samples = 1; if (samples > 18) samples = 18; // one dummy read result = touch_get_data(type); // read data while (i < 10) { minval = 5000; maxval = 0; // get values for (n=0;n<samples;n++) { result = touch_get_data(type); if (result < 0) break; vbuf[n] = result; if (result < minval) minval = result; if (result > maxval) maxval = result; } if (result < 0) break; dif = maxval - minval; if (dif < 40) break; i++; } if (result < 0) return -1; if (samples > 2) { // remove one min value for (n = 0; n < samples; n++) { if (vbuf[n] == minval) { vbuf[n] = 5000; break; } } // remove one max value for (n = 0; n < samples; n++) { if (vbuf[n] == maxval) { vbuf[n] = 5000; break; } } for (n = 0; n < samples; n++) { if (vbuf[n] < 5000) val += vbuf[n]; } val /= (samples-2); } else val = vbuf[0]; return val; } //----------------------------------------------- static int TFT_read_touch_xpt2046(int *x, int* y) { int res = 0, result = -1; if (spi_lobo_device_select(ts_spi, 0) != ESP_OK) return 0; result = tp_get_data_xpt2046(0xB0, 3); // Z; pressure; touch detect if (result <= 15) goto exit; // Z was 50, but near the origin it's just above 10. // 26-6-2018 from 10 to 15. // touch panel pressed result = tp_get_data_xpt2046(0xD0, 6); if (result < 0) goto exit; *x = result; result = tp_get_data_xpt2046(0x90, 6); if (result < 0) goto exit; *y = result; res = 1; exit: spi_lobo_device_deselect(ts_spi); return res; } #endif //============================================= int TFT_read_touch(int *x, int* y, uint8_t raw) { *x = 0; *y = 0; if (ts_spi == NULL) return 0; #if USE_TOUCH == TOUCH_TYPE_NONE return 0; #else int result = -1; int X=0, Y=0; #if USE_TOUCH == TOUCH_TYPE_XPT2046 result = TFT_read_touch_xpt2046(&X, &Y); if (result == 0) return 0; #elif USE_TOUCH == TOUCH_TYPE_STMPE610 uint32_t tp_calx = TP_CALX_STMPE610; uint32_t tp_caly = TP_CALY_STMPE610; uint16_t Xx, Yy, Z=0; result = stmpe610_get_touch(&Xx, &Yy, &Z); if (result == 0) return 0; X = Xx; Y = Yy; #else return 0; #endif if (raw) { *x = X; *y = Y; return 1; } // Calibrate the result int tmp; int xleft = tp_xleft; //(tp_calx >> 16) & 0x3FFF; int xright = tp_xright; //tp_calx & 0x3FFF; int ytop = tp_ytop; //(tp_caly >> 16) & 0x3FFF; int ybottom = tp_ybottom; //tp_caly & 0x3FFF; if (((xright - xleft) <= 0) || ((ytop - ybottom) <= 0)) return 0; #if USE_TOUCH == TOUCH_TYPE_XPT2046 // printf("Raw %dx%d ", X, Y); // Received coordinates are always in portrait, origin left bottom. int width = DEFAULT_TFT_DISPLAY_WIDTH; int height = DEFAULT_TFT_DISPLAY_HEIGHT; X = ((X - xleft) * width) / (xright - xleft); Y = ((Y - ybottom) * height) / (ytop - ybottom); if (X < 0) X = 0; if (X > width-1) X = width-1; if (Y < 0) Y = 0; if (Y > height-1) Y = height-1; switch (orientation) { case PORTRAIT: Y = height - Y - 1; break; case LANDSCAPE: tmp = X; X = height - Y - 1; Y = width - tmp - 1; break; case PORTRAIT_FLIP: X = width - X - 1; break; case LANDSCAPE_FLIP: tmp = X; X = Y; Y = tmp; break; } // printf("Cal %dx%d %dx%d XxY %dx%d\n", xleft, ybottom, xright, ytop, X, Y); #elif USE_TOUCH == TOUCH_TYPE_STMPE610 int width = _width; int height = _height; if (_width > _height) { width = _height; height = _width; } X = ((X - xleft) * width) / (xright - xleft); Y = ((Y - ytop) * height) / (ybottom - ytop); if (X < 0) X = 0; if (X > width-1) X = width-1; if (Y < 0) Y = 0; if (Y > height-1) Y = height-1; switch (orientation) { case PORTRAIT_FLIP: X = width - X - 1; Y = height - Y - 1; break; case LANDSCAPE: tmp = X; X = Y; Y = width - tmp -1; break; case LANDSCAPE_FLIP: tmp = X; X = height - Y -1; Y = tmp; break; } #endif *x = X; *y = Y; return 1; #endif }