Revision 180:4882e80cfcfe, committed 2019-07-28

Comitter:

WiredHome

Date:

Sun Jul 28 00:21:15 2019 +0000

Parent:

179:7b2de82d9dfb

Commit message:

new constructor for rect_t; much faster thick line drawing; additional debug diagnostics.

Changed in this revision

diff -r 7b2de82d9dfb -r 4882e80cfcfe RA8875.cpp
--- a/RA8875.cpp	Sat Jul 27 18:54:09 2019 +0000
+++ b/RA8875.cpp	Sun Jul 28 00:21:15 2019 +0000
@@ -192,6 +192,7 @@
     , cs(csel)
     , res(reset)
 {
+    INFO("RA8875");
     touchInfo = (touchInfo_T *)malloc(RESISTIVE_TOUCH_POINTS * sizeof(touchInfo_T));
     if (touchInfo)
         useTouchPanel = TP_RES;
@@ -218,11 +219,13 @@
     , cs(csel)
     , res(reset)
 {
+    INFO("RA8875");
     tpFQFN = NULL;
     tpCalMessage = NULL;
     m_irq = new InterruptIn(irq);
     m_i2c = new I2C(sda, scl);
-
+    INFO("m_i2c = %p", m_i2c);
+    
     // Cap touch panel config
     touchInfo = (touchInfo_T *)malloc(FT5206_TOUCH_POINTS * sizeof(touchInfo_T));
     if (touchInfo)
@@ -241,7 +244,6 @@
 
     // Interrupt
     m_irq->mode(PullUp);
-    m_irq->enable_irq();
     #if MBED_VERSION >= MBED_ENCODE_VERSION(5,8,0)
     eventThread.start(callback(&queue, &EventQueue::dispatch_forever));
     m_irq->fall(queue.event(callback(this, &RA8875::TouchPanelISR)));
@@ -250,7 +252,9 @@
     #else
     m_irq->fall(this, &RA8875::TouchPanelISR);
     #endif
+    m_irq->enable_irq();
     TouchPanelInit();
+    INFO("RA8875 end.");
 }
 
 
@@ -263,6 +267,7 @@
     , cs(csel)
     , res(reset)
 {
+    INFO("RA8875");
     tpFQFN = NULL;
     tpCalMessage = NULL;
     m_irq = new InterruptIn(irq);
@@ -307,6 +312,7 @@
 
 RetCode_t RA8875::init(int width, int height, int color_bpp, uint8_t poweron, bool keypadon, bool touchscreenon)
 {
+    INFO("RA8875::init()");
     font = NULL;                                // no external font, use internal.
     pKeyMap = DefaultKeyMap;                    // set default key map
     _select(false);                             // deselect the display
@@ -397,12 +403,14 @@
     if (touchscreenon) {
         if (useTouchPanel == TP_NONE)
             useTouchPanel = TP_RES;
-        TouchPanelInit();
+        if (useTouchPanel == TP_RES)
+            TouchPanelInit();       // only init again if resistive (due to HW reset applied above).
     }
 #ifdef PERF_METRICS
     performance.start();
     ClearPerformance();
 #endif
+    INFO("RA8875::init() end");
     return noerror;
 }
 
@@ -1371,6 +1379,7 @@
 {
     RetCode_t ret;
 
+    INFO("cls()");
     PERFORMANCE_RESET;
     if (layers == 0) {
         ret = clsw(FULLWINDOW);
@@ -1389,7 +1398,7 @@
         SelectDrawingLayer(prevLayer);
     }
     ret = SetTextCursor(0,0);
-    ret = locate(0,0);
+    //ret = locate(0,0);
     REGISTERPERFORMANCE(PRF_CLS);
     return ret;
 }
@@ -1397,6 +1406,7 @@
 
 RetCode_t RA8875::clsw(RA8875::Region_t region)
 {
+    INFO("clsw()");
     PERFORMANCE_RESET;
     WriteCommand(RA8875_MCLR, (region == ACTIVEWINDOW) ? 0xC0 : 0x80);
     if (!_WaitWhileReg(0x8E, 0x80)) {
@@ -1609,23 +1619,76 @@
 
 RetCode_t RA8875::ThickLine(point_t p1, point_t p2, dim_t thickness, color_t color)
 {
+    INFO("ThickLine()");
     if (thickness == 1) {
         line(p1,p2, color);
     } else {
-        int dx = abs(p2.x-p1.x), sx = p1.x<p2.x ? 1 : -1;
-        int dy = abs(p2.y-p1.y), sy = p1.y<p2.y ? 1 : -1;
-        int err = (dx>dy ? dx : -dy)/2, e2;
-        
-        for (;;) {
-            fillcircle(p1.x, p1.y, thickness/2, color);
-            if (p1.x==p2.x && p1.y==p2.y) 
-                break;
-            e2 = err;
-            if (e2 >-dx) 
-                { err -= dy; p1.x += sx; }
-            if (e2 < dy) 
-                { err += dx; p1.y += sy; }
-        }        
+        if (p1.x == p2.x) {
+            // vertical
+            fillcircle(p1, thickness/2, color);
+            fillcircle(p2, thickness/2, color);
+            fillrect(p1.x-thickness/2,p1.y, p2.x+thickness/2,p2.y, color);
+        } else if (p1.y == p2.y) {
+            // horizontal
+            fillcircle(p1, thickness/2, color);
+            fillcircle(p2, thickness/2, color);
+            fillrect(p1.x,p1.y-thickness/2, p2.x,p2.y+thickness/2, color);
+        } else {
+            // some diagonal, drawn rather slowly with filled circles
+            // @todo draw the end-points with circles, then draw the diagonal
+            //      with 2 triangles. 
+            #if 1  // New Faster method
+            //Round-caps
+            fillcircle(p1, thickness/2, color);
+            fillcircle(p2, thickness/2, color);
+            // Compute the perpendicular points to draw the triangles
+            //              +           fillTriangle: p1a,p1b,p2a
+            //            /   + p1a                   p1a,p2a,p2b
+            //           +  +p1+ .  .   .   .    .
+            //       p1b  +   /  .      angle
+            //              +        . 
+            //                           .
+            //
+            //                                   .        +
+            //                                          /   + p2a
+            //                                         +  +p2+
+            //                                     p2b  +   /
+            //                                            +
+            point_t pTri[4];
+            float slope = (p2.y - p1.y) / (p2.x - p1.x);
+            slope = -1/slope;
+            //centerline
+            //line(p1,p2,color);
+            float dx = (thickness/2 / sqrt(thickness/2 + (slope * slope))); 
+            float dy = slope * dx;
+            pTri[0].x = p1.x + dx;
+            pTri[0].y = p1.y + dy;
+            pTri[1].x = p1.x - dx;
+            pTri[1].y = p1.y - dy;
+            pTri[2].x = p2.x + dx;
+            pTri[2].y = p2.y + dy;
+            pTri[3].x = p2.x - dx;
+            pTri[3].y = p2.y - dy;
+            filltriangle(pTri[0],pTri[1],pTri[3], color);
+            filltriangle(pTri[0],pTri[2],pTri[3], color);
+            #else // old slower method
+            // Draw with a lot of overlapping circles
+            int dx = abs(p2.x-p1.x), sx = p1.x<p2.x ? 1 : -1;
+            int dy = abs(p2.y-p1.y), sy = p1.y<p2.y ? 1 : -1;
+            int err = (dx>dy ? dx : -dy)/2, e2;
+            
+            for (;;) {
+                fillcircle(p1.x, p1.y, thickness/2, color);
+                if (p1.x==p2.x && p1.y==p2.y) 
+                    break;
+                e2 = err;
+                if (e2 >-dx) 
+                    { err -= dy; p1.x += sx; }
+                if (e2 < dy) 
+                    { err += dx; p1.y += sy; }
+            }
+            #endif
+        }
     }
     return noerror;
 }
@@ -1729,6 +1792,7 @@
 {
     RetCode_t ret = noerror;
 
+    INFO("roundrect()");
     PERFORMANCE_RESET;
     if (x1 < 0 || x1 >= screenwidth || x2 < 0 || x2 >= screenwidth 
     || y1 < 0 || y1 >= screenheight || y2 < 0 || y2 >= screenheight) {
@@ -1769,6 +1833,15 @@
 //
 // triangle functions
 //
+RetCode_t RA8875::filltriangle(point_t p1, point_t p2, point_t p3, color_t color, fill_t fillit)
+{
+    return filltriangle(p1.x,p1.y, p2.x,p2.y, p3.x,p3.y, color, fillit);
+}
+
+RetCode_t RA8875::triangle(point_t p1, point_t p2, point_t p3, color_t color, fill_t fillit)
+{
+    return triangle(p1.x,p1.y, p2.x,p2.y, p3.x,p3.y, color, fillit);
+}
 
 RetCode_t RA8875::triangle(loc_t x1, loc_t y1, loc_t x2, loc_t y2,
                            loc_t x3, loc_t y3, color_t color, fill_t fillit)
@@ -1800,6 +1873,7 @@
 {
     RetCode_t ret = noerror;
 
+    INFO("triangle");
     PERFORMANCE_RESET;
     if (x1 == x2 && y1 == y2 && x1 == x3 && y1 == y3) {
         pixel(x1, y1);
@@ -1867,6 +1941,7 @@
 {
     RetCode_t ret = noerror;
 
+    INFO("circle");
     PERFORMANCE_RESET;
     if (radius <= 0 || (x - radius) < 0 || (x + radius) > screenwidth 
     || (y - radius) < 0 || (y + radius) > screenheight) {
@@ -1910,6 +1985,7 @@
 {
     RetCode_t ret = noerror;
 
+    INFO("ellipse");
     PERFORMANCE_RESET;
     if (radius1 <= 0 || radius2 <= 0 || (x - radius1) < 0 || (x + radius1) > screenwidth 
     || (y - radius2) < 0 || (y + radius2) > screenheight) {
@@ -2047,8 +2123,7 @@
 
 RetCode_t RA8875::SelectUserFont(const uint8_t * _font)
 {
-    INFO("Cursor(%d,%d)  %p", cursor_x, cursor_y, _font);
-    INFO("Text C(%d,%d)", GetTextCursor_X(), GetTextCursor_Y());
+    INFO("SelectUserFont(%p)", _font);
     if (_font) {
         HexDump("Font Memory", _font, 16);
         extFontHeight = _font[6];

diff -r 7b2de82d9dfb -r 4882e80cfcfe RA8875.h
--- a/RA8875.h	Sat Jul 27 18:54:09 2019 +0000
+++ b/RA8875.h	Sun Jul 28 00:21:15 2019 +0000
@@ -2389,6 +2389,34 @@
     /// @note As a side effect, this changes the current
     ///     foreground color for subsequent operations.
     ///
+    /// @param[in] p1 is point 1.
+    /// @param[in] p2 is point 2.
+    /// @param[in] p3 is point 3.
+    /// @param[in] color defines the foreground color.
+    /// @param[in] fillit is optional to FILL the rectangle. default is NOFILL.
+    /// @returns @ref RetCode_t value.
+    ///
+    RetCode_t filltriangle(point_t p1, point_t p2, point_t p3, color_t color, fill_t fillit = FILL);
+
+    /// Draw a triangle in the specified color.
+    ///
+    /// @note As a side effect, this changes the current
+    ///     foreground color for subsequent operations.
+    ///
+    /// @param[in] p1 is point 1.
+    /// @param[in] p2 is point 2.
+    /// @param[in] p3 is point 3.
+    /// @param[in] color defines the foreground color.
+    /// @param[in] fillit is optional to FILL the rectangle. default is NOFILL.
+    /// @returns @ref RetCode_t value.
+    ///
+    RetCode_t triangle(point_t p1, point_t p2, point_t p3, color_t color, fill_t fillit = NOFILL);
+    
+    /// Draw a triangle in the specified color.
+    ///
+    /// @note As a side effect, this changes the current
+    ///     foreground color for subsequent operations.
+    ///
     /// @param[in] x1 is the horizontal for point 1.
     /// @param[in] y1 is the vertical for point 1. 
     /// @param[in] x2 is the horizontal for point 2.
@@ -3038,7 +3066,9 @@
     ////////////////// Start of Capacitive Touch Panel parameters
     
     int RoundUp(int value, int roundTo);
+public:
     uint8_t FT5206_TouchPositions(void);
+private:
     uint8_t FT5206_ReadRegU8(uint8_t reg);
     uint8_t GSL1680_TouchPositions(void);
     uint8_t GSL1680_ReadRegU8(uint8_t reg, uint8_t * buf, int count);

diff -r 7b2de82d9dfb -r 4882e80cfcfe RA8875_Touch.cpp
--- a/RA8875_Touch.cpp	Sat Jul 27 18:54:09 2019 +0000
+++ b/RA8875_Touch.cpp	Sun Jul 28 00:21:15 2019 +0000
@@ -10,7 +10,7 @@
 #define NOTOUCH_TIMEOUT_uS 100000
 #define TOUCH_TICKER_uS      1000
 
-#define DEBUG "TUCH"
+//#define DEBUG "TUCH"
 // ...
 // INFO("Stuff to show %d", var); // new-line is automatically appended
 //
@@ -784,6 +784,7 @@
     
     m_i2c->write(m_addr, (const char *)&reg, 1);
     m_i2c->read(m_addr, &val, 1);
+    HexDump("FT5206_Read", (uint8_t *)&val, 1);
     return (uint8_t)val;
 }
 

diff -r 7b2de82d9dfb -r 4882e80cfcfe RA8875_Touch_FT5206.cpp
--- a/RA8875_Touch_FT5206.cpp	Sat Jul 27 18:54:09 2019 +0000
+++ b/RA8875_Touch_FT5206.cpp	Sun Jul 28 00:21:15 2019 +0000
@@ -51,9 +51,26 @@
 
 
 RetCode_t RA8875::FT5206_Init() {
-    char data[2] = {FT5206_DEVICE_MODE, 0};
+    const char data[] = {FT5206_DEVICE_MODE, 0};
+    //const char data[] = {0xC3, 0x55, 0x11, 0x33, 0xAA};
 
-    m_i2c->write(m_addr, data, 2);
+    #ifdef DEBUG
+    int count = 0;
+    for (int address=0; address<256; address+=2) {
+        if (!m_i2c->write(address, NULL, 0)) { // 0 returned is ok
+            INFO("I2C address 0x%02X", address);
+            count++;
+        }
+    }
+    INFO("%d devices found", count);
+    #endif
+    
+    INFO("FT5206_Init: Addr %02X", m_addr);
+    HexDump("FT5206 Init", (uint8_t *)data, sizeof(data)/sizeof(data[0]));
+    int err = m_i2c->write(m_addr, data, sizeof(data)/sizeof(data[0]), true);
+    if (err) {
+        ERR("  result: %d", err);
+    }
     return noerror;
 }