diff --git a/ESP32-VirtualMatrixPanel-I2S-DMA.h b/ESP32-VirtualMatrixPanel-I2S-DMA.h index e439159..b2aba42 100644 --- a/ESP32-VirtualMatrixPanel-I2S-DMA.h +++ b/ESP32-VirtualMatrixPanel-I2S-DMA.h @@ -3,11 +3,11 @@ /******************************************************************* Class contributed by Brian Lough, and expanded by Faptastic. - + Originally designed to allow CHAINING of panels together to create a 'bigger' display of panels. i.e. Chaining 4 panels into a 2x2 grid. - + However, the function of this class has expanded now to also manage the output for 1/16 scan panels, as the core DMA library is designed ONLY FOR 1/16 scan matrix panels. @@ -19,22 +19,27 @@ #include "ESP32-HUB75-MatrixPanel-I2S-DMA.h" #ifndef NO_GFX - #include +#include #endif -struct VirtualCoords { - +struct VirtualCoords +{ int16_t x; int16_t y; int16_t virt_row; // chain of panels row int16_t virt_col; // chain of panels col - - VirtualCoords() : x(0), y(0) - { } - + + VirtualCoords() : x(0), y(0) + { + } }; -enum PANEL_SCAN_RATE {NORMAL_ONE_SIXTEEN, ONE_EIGHT_32, ONE_EIGHT_16}; +enum PANEL_SCAN_RATE +{ + NORMAL_ONE_SIXTEEN, + ONE_EIGHT_32, + ONE_EIGHT_16 +}; #ifdef USE_GFX_ROOT class VirtualMatrixPanel : public GFX @@ -42,279 +47,296 @@ class VirtualMatrixPanel : public GFX class VirtualMatrixPanel : public Adafruit_GFX #else class VirtualMatrixPanel -#endif +#endif { - public: - int16_t virtualResX; - int16_t virtualResY; +public: + int16_t virtualResX; + int16_t virtualResY; - int16_t vmodule_rows; - int16_t vmodule_cols; + int16_t vmodule_rows; + int16_t vmodule_cols; - int16_t panelResX; - int16_t panelResY; - - int16_t dmaResX; // The width of the chain in pixels (as the DMA engine sees it) + int16_t panelResX; + int16_t panelResY; - MatrixPanel_I2S_DMA *display; + int16_t dmaResX; // The width of the chain in pixels (as the DMA engine sees it) - VirtualMatrixPanel(MatrixPanel_I2S_DMA &disp, int _vmodule_rows, int _vmodule_cols, int _panelResX, int _panelResY, bool serpentine_chain = true, bool top_down_chain = false) + MatrixPanel_I2S_DMA *display; + + VirtualMatrixPanel(MatrixPanel_I2S_DMA &disp, int _vmodule_rows, int _vmodule_cols, int _panelResX, int _panelResY, bool serpentine_chain = true, bool top_down_chain = false) #ifdef USE_GFX_ROOT - : GFX(_vmodule_cols*_panelResX, _vmodule_rows*_panelResY) + : GFX(_vmodule_cols * _panelResX, _vmodule_rows * _panelResY) #elif !defined NO_GFX - : Adafruit_GFX(_vmodule_cols*_panelResX, _vmodule_rows*_panelResY) -#endif - { - this->display = &disp; - - panelResX = _panelResX; - panelResY = _panelResY; - - vmodule_rows = _vmodule_rows; - vmodule_cols = _vmodule_cols; - - virtualResX = vmodule_cols*_panelResX; - virtualResY = vmodule_rows*_panelResY; - - dmaResX = panelResX * vmodule_rows * vmodule_cols; - - - - /* Virtual Display width() and height() will return a real-world value. For example: - * Virtual Display width: 128 - * Virtual Display height: 64 - * - * So, not values that at 0 to X-1 - */ - - _s_chain_party = serpentine_chain; // serpentine, or 'S' chain? - _chain_top_down= top_down_chain; - - coords.x = coords.y = -1; // By default use an invalid co-ordinates that will be rejected by updateMatrixDMABuffer - - } - - // equivalent methods of the matrix library so it can be just swapped out. - virtual void drawPixel(int16_t x, int16_t y, uint16_t color); - virtual void fillScreen(uint16_t color); // overwrite adafruit implementation - virtual void fillScreenRGB888(uint8_t r, uint8_t g,uint8_t b); - void clearScreen() { display->clearScreen(); } - void drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b); -#ifdef USE_GFX_ROOT - // 24bpp FASTLED CRGB colour struct support - void fillScreen(CRGB color); - void drawPixel(int16_t x, int16_t y, CRGB color); + : Adafruit_GFX(_vmodule_cols * _panelResX, _vmodule_rows * _panelResY) #endif - uint16_t color444(uint8_t r, uint8_t g, uint8_t b) { return display->color444(r, g, b); } - uint16_t color565(uint8_t r, uint8_t g, uint8_t b) { return display->color565(r, g, b); } - uint16_t color333(uint8_t r, uint8_t g, uint8_t b) { return display->color333(r, g, b); } - - void flipDMABuffer() { display->flipDMABuffer(); } - void drawDisplayTest(); - void setRotate(bool rotate); - - void setPhysicalPanelScanRate(PANEL_SCAN_RATE rate); + { + this->display = &disp; - protected: - - virtual VirtualCoords getCoords(int16_t &x, int16_t &y); - VirtualCoords coords; - - bool _s_chain_party = true; // Are we chained? Ain't no party like a... - bool _chain_top_down = false; // is the ESP at the top or bottom of the matrix of devices? - bool _rotate = false; - - PANEL_SCAN_RATE _panelScanRate = NORMAL_ONE_SIXTEEN; + panelResX = _panelResX; + panelResY = _panelResY; + + vmodule_rows = _vmodule_rows; + vmodule_cols = _vmodule_cols; + + virtualResX = vmodule_cols * _panelResX; + virtualResY = vmodule_rows * _panelResY; + + dmaResX = panelResX * vmodule_rows * vmodule_cols; + + /* Virtual Display width() and height() will return a real-world value. For example: + * Virtual Display width: 128 + * Virtual Display height: 64 + * + * So, not values that at 0 to X-1 + */ + + _s_chain_party = serpentine_chain; // serpentine, or 'S' chain? + _chain_top_down = top_down_chain; + + coords.x = coords.y = -1; // By default use an invalid co-ordinates that will be rejected by updateMatrixDMABuffer + } + + // equivalent methods of the matrix library so it can be just swapped out. + virtual void drawPixel(int16_t x, int16_t y, uint16_t color); + virtual void fillScreen(uint16_t color); // overwrite adafruit implementation + virtual void fillScreenRGB888(uint8_t r, uint8_t g, uint8_t b); + + void clearScreen() { display->clearScreen(); } + void drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b); + +#ifdef USE_GFX_ROOT + // 24bpp FASTLED CRGB colour struct support + void fillScreen(CRGB color); + void drawPixel(int16_t x, int16_t y, CRGB color); +#endif + + uint16_t color444(uint8_t r, uint8_t g, uint8_t b) { return display->color444(r, g, b); } + uint16_t color565(uint8_t r, uint8_t g, uint8_t b) { return display->color565(r, g, b); } + uint16_t color333(uint8_t r, uint8_t g, uint8_t b) { return display->color333(r, g, b); } + + void flipDMABuffer() { display->flipDMABuffer(); } + void drawDisplayTest(); + void setRotate(bool rotate); + + void setPhysicalPanelScanRate(PANEL_SCAN_RATE rate); + +protected: + virtual VirtualCoords getCoords(int16_t &x, int16_t &y); + VirtualCoords coords; + + bool _s_chain_party = true; // Are we chained? Ain't no party like a... + bool _chain_top_down = false; // is the ESP at the top or bottom of the matrix of devices? + bool _rotate = false; + + PANEL_SCAN_RATE _panelScanRate = NORMAL_ONE_SIXTEEN; }; // end Class header /** * Calculate virtual->real co-ordinate mapping to underlying single chain of panels connected to ESP32. - * Updates the private class member variable 'coords', so no need to use the return value. + * Updates the private class member variable 'coords', so no need to use the return value. * Not thread safe, but not a concern for ESP32 sketch anyway... I think. */ -inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t &x, int16_t &y) { - //Serial.println("Called Base."); - coords.x = coords.y = -1; // By defalt use an invalid co-ordinates that will be rejected by updateMatrixDMABuffer +inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t &x, int16_t &y) +{ + // Serial.println("Called Base."); + coords.x = coords.y = -1; // By defalt use an invalid co-ordinates that will be rejected by updateMatrixDMABuffer - // We want to rotate? - if (_rotate){ - int16_t temp_x=x; - x=y; - y=virtualResY-1-temp_x; - } + // Do we want to rotate? + if (_rotate) + { + int16_t temp_x = x; + x = y; + y = virtualResY - 1 - temp_x; + } - if ( x < 0 || x >= virtualResX || y < 0 || y >= virtualResY ) { // Co-ordinates go from 0 to X-1 remember! otherwise they are out of range! - //Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y); - return coords; - } + if (x < 0 || x >= virtualResX || y < 0 || y >= virtualResY) + { // Co-ordinates go from 0 to X-1 remember! otherwise they are out of range! + // Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y); + return coords; + } - // Stupidity check - if ( (vmodule_rows == 1) && (vmodule_cols == 1)) // single panel... - { - coords.x = x; - coords.y = y; - return coords; - } - - uint8_t row = (y / panelResY) + 1; //a non indexed 0 row number - if( ( _s_chain_party && !_chain_top_down && (row % 2 == 0) ) // serpentine vertically stacked chain starting from bottom row (i.e. ESP closest to ground), upwards - || - ( _s_chain_party && _chain_top_down && (row % 2 != 0) ) // serpentine vertically stacked chain starting from the sky downwards + // Stupidity check + if ((vmodule_rows == 1) && (vmodule_cols == 1)) // single panel... + { + coords.x = x; + coords.y = y; + } + else + { + uint8_t row = (y / panelResY) + 1; // a non indexed 0 row number + if ((_s_chain_party && !_chain_top_down && (row % 2 == 0)) // serpentine vertically stacked chain starting from bottom row (i.e. ESP closest to ground), upwards + || + (_s_chain_party && _chain_top_down && (row % 2 != 0)) // serpentine vertically stacked chain starting from the sky downwards ) { // First portion gets you to the correct offset for the row you need // Second portion inverts the x on the row - coords.x = ((y / panelResY) * (virtualResX)) + (virtualResX - x) - 1; - + coords.x = ((y / panelResY) * (virtualResX)) + (virtualResX - x) - 1; + // inverts the y the row - coords.y = panelResY - 1 - (y % panelResY); - } - else + coords.y = panelResY - 1 - (y % panelResY); + } + else { - // Normal chain pixel co-ordinate - coords.x = x + ((y / panelResY) * (virtualResX)) ; + // Normal chain pixel co-ordinate + coords.x = x + ((y / panelResY) * (virtualResX)); coords.y = y % panelResY; } + } - // Reverse co-ordinates if panel chain from ESP starts from the TOP RIGHT - if (_chain_top_down) + // Reverse co-ordinates if panel chain from ESP starts from the TOP RIGHT + if (_chain_top_down) + { + /* + const HUB75_I2S_CFG _cfg = this->display->getCfg(); + coords.x = (_cfg.mx_width * _cfg.chain_length - 1) - coords.x; + coords.y = (_cfg.mx_height-1) - coords.y; + */ + coords.x = (dmaResX - 1) - coords.x; + coords.y = (panelResY - 1) - coords.y; + } + + /* START: Pixel remapping AGAIN to convert 1/16 SCAN output that the + * the underlying hardware library is designed for (because + * there's only 2 x RGB pins... and convert this to 1/8 or something + */ + if (_panelScanRate == ONE_EIGHT_32) + { + /* Convert Real World 'VirtualMatrixPanel' co-ordinates (i.e. Real World pixel you're looking at + on the panel or chain of panels, per the chaining configuration) to a 1/8 panels + double 'stretched' and 'squished' coordinates which is what needs to be sent from the + DMA buffer. + + Note: Look at the One_Eight_1_8_ScanPanel code and you'll see that the DMA buffer is setup + as if the panel is 2 * W and 0.5 * H ! + */ + + /* + Serial.print("VirtualMatrixPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") "); + // to + Serial.print("to ("); Serial.print(coords.x, DEC); Serial.print(","); Serial.print(coords.y, DEC); Serial.println(") "); + */ + if ((y & 8) == 0) { - /* - const HUB75_I2S_CFG _cfg = this->display->getCfg(); - coords.x = (_cfg.mx_width * _cfg.chain_length - 1) - coords.x; - coords.y = (_cfg.mx_height-1) - coords.y; - */ - coords.x = (dmaResX - 1) - coords.x; - coords.y = (panelResY-1) - coords.y; + coords.x += ((coords.x / panelResX) + 1) * panelResX; // 1st, 3rd 'block' of 8 rows of pixels, offset by panel width in DMA buffer + } + else + { + coords.x += (coords.x / panelResX) * panelResX; // 2nd, 4th 'block' of 8 rows of pixels, offset by panel width in DMA buffer } - - - /* START: Pixel remapping AGAIN to convert 1/16 SCAN output that the - * the underlying hardware library is designed for (because - * there's only 2 x RGB pins... and convert this to 1/8 or something - */ - if ( _panelScanRate == ONE_EIGHT_32) - { - /* Convert Real World 'VirtualMatrixPanel' co-ordinates (i.e. Real World pixel you're looking at - on the panel or chain of panels, per the chaining configuration) to a 1/8 panels - double 'stretched' and 'squished' coordinates which is what needs to be sent from the - DMA buffer. - Note: Look at the One_Eight_1_8_ScanPanel code and you'll see that the DMA buffer is setup - as if the panel is 2 * W and 0.5 * H ! - */ - - /* - Serial.print("VirtualMatrixPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") "); - // to - Serial.print("to ("); Serial.print(coords.x, DEC); Serial.print(","); Serial.print(coords.y, DEC); Serial.println(") "); - */ - if ( (y & 8) == 0) { - coords.x += ((coords.x / panelResX)+1)*panelResX; // 1st, 3rd 'block' of 8 rows of pixels, offset by panel width in DMA buffer - } - else { - coords.x += (coords.x / panelResX)*panelResX; // 2nd, 4th 'block' of 8 rows of pixels, offset by panel width in DMA buffer - } + // http://cpp.sh/4ak5u + // Real number of DMA y rows is half reality + // coords.y = (y / 16)*8 + (y & 0b00000111); + coords.y = (y >> 4) * 8 + (y & 0b00000111); - // http://cpp.sh/4ak5u - // Real number of DMA y rows is half reality - // coords.y = (y / 16)*8 + (y & 0b00000111); - coords.y = (y >> 4)*8 + (y & 0b00000111); + /* + Serial.print("OneEightScanPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") "); + // to + Serial.print("to ("); Serial.print(coords.x, DEC); Serial.print(","); Serial.print(coords.y, DEC); Serial.println(") "); + */ + } + else if (_panelScanRate == ONE_EIGHT_16) + { + if ((y & 8) == 0) + { + coords.x += (panelResX >> 2) * (((coords.x & 0xFFF0) >> 4) + 1); // 1st, 3rd 'block' of 8 rows of pixels, offset by panel width in DMA buffer + } + else + { + coords.x += (panelResX >> 2) * (((coords.x & 0xFFF0) >> 4)); // 2nd, 4th 'block' of 8 rows of pixels, offset by panel width in DMA buffer + } - /* - Serial.print("OneEightScanPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") "); - // to - Serial.print("to ("); Serial.print(coords.x, DEC); Serial.print(","); Serial.print(coords.y, DEC); Serial.println(") "); - */ - } - + if (y < 32) + coords.y = (y >> 4) * 8 + (y & 0b00000111); + else + { + coords.y = ((y - 32) >> 4) * 8 + (y & 0b00000111); + coords.x += 256; + } + } - if ( _panelScanRate == ONE_EIGHT_16) - { - if ((y & 8) == 0) { - coords.x += (panelResX>>2) * (((coords.x & 0xFFF0)>>4)+1); // 1st, 3rd 'block' of 8 rows of pixels, offset by panel width in DMA buffer - } else { - coords.x += (panelResX>>2) * (((coords.x & 0xFFF0)>>4)); // 2nd, 4th 'block' of 8 rows of pixels, offset by panel width in DMA buffer - } - - if (y < 32) - coords.y = (y >> 4) * 8 + (y & 0b00000111); - else{ - coords.y = ((y-32) >> 4) * 8 + (y & 0b00000111); - coords.x += 256; - } - } - - - //Serial.print("Mapping to x: "); Serial.print(coords.x, DEC); Serial.print(", y: "); Serial.println(coords.y, DEC); - return coords; + // Serial.print("Mapping to x: "); Serial.print(coords.x, DEC); Serial.print(", y: "); Serial.println(coords.y, DEC); + return coords; } -inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, uint16_t color) { // adafruit virtual void override +inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, uint16_t color) +{ // adafruit virtual void override getCoords(x, y); this->display->drawPixel(coords.x, coords.y, color); } -inline void VirtualMatrixPanel::fillScreen(uint16_t color) { // adafruit virtual void override +inline void VirtualMatrixPanel::fillScreen(uint16_t color) +{ // adafruit virtual void override this->display->fillScreen(color); } -inline void VirtualMatrixPanel::fillScreenRGB888(uint8_t r, uint8_t g,uint8_t b) { +inline void VirtualMatrixPanel::fillScreenRGB888(uint8_t r, uint8_t g, uint8_t b) +{ this->display->fillScreenRGB888(r, g, b); } -inline void VirtualMatrixPanel::drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b) { +inline void VirtualMatrixPanel::drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b) +{ getCoords(x, y); - this->display->drawPixelRGB888( coords.x, coords.y, r, g, b); + this->display->drawPixelRGB888(coords.x, coords.y, r, g, b); } #ifdef USE_GFX_ROOT // Support for CRGB values provided via FastLED inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, CRGB color) { - getCoords(x, y); - this->display->drawPixel(coords.x, coords.y, color); + getCoords(x, y); + this->display->drawPixel(coords.x, coords.y, color); } inline void VirtualMatrixPanel::fillScreen(CRGB color) { - this->display->fillScreen(color); + this->display->fillScreen(color); } #endif -inline void VirtualMatrixPanel::setRotate(bool rotate) { - _rotate=rotate; +inline void VirtualMatrixPanel::setRotate(bool rotate) +{ + _rotate = rotate; #ifndef NO_GFX - // We don't support rotation by degrees. - if (rotate) { setRotation(1); } else { setRotation(0); } + // We don't support rotation by degrees. + if (rotate) + { + setRotation(1); + } + else + { + setRotation(0); + } #endif } -inline void VirtualMatrixPanel::setPhysicalPanelScanRate(PANEL_SCAN_RATE rate) { - _panelScanRate=rate; +inline void VirtualMatrixPanel::setPhysicalPanelScanRate(PANEL_SCAN_RATE rate) +{ + _panelScanRate = rate; } - - #ifndef NO_GFX inline void VirtualMatrixPanel::drawDisplayTest() -{ - this->display->setFont(&FreeSansBold12pt7b); - this->display->setTextColor(this->display->color565(255, 255, 0)); - this->display->setTextSize(1); - - for ( int panel = 0; panel < vmodule_cols*vmodule_rows; panel++ ) { - int top_left_x = (panel == 0) ? 0:(panel*panelResX); - this->display->drawRect( top_left_x, 0, panelResX, panelResY, this->display->color565( 0, 255, 0)); - this->display->setCursor(panel*panelResX, panelResY-3); - this->display->print((vmodule_cols*vmodule_rows)-panel); - } +{ + this->display->setFont(&FreeSansBold12pt7b); + this->display->setTextColor(this->display->color565(255, 255, 0)); + this->display->setTextSize(1); + for (int panel = 0; panel < vmodule_cols * vmodule_rows; panel++) + { + int top_left_x = (panel == 0) ? 0 : (panel * panelResX); + this->display->drawRect(top_left_x, 0, panelResX, panelResY, this->display->color565(0, 255, 0)); + this->display->setCursor(panel * panelResX, panelResY - 3); + this->display->print((vmodule_cols * vmodule_rows) - panel); + } } #endif + /* // need to recreate this one, as it wouldn't work to just map where it starts. inline void VirtualMatrixPanel::drawIcon (int *ico, int16_t x, int16_t y, int16_t icon_cols, int16_t icon_rows) { @@ -324,7 +346,7 @@ inline void VirtualMatrixPanel::drawIcon (int *ico, int16_t x, int16_t y, int16_ // This is a call to this libraries version of drawPixel // which will map each pixel, which is what we want. //drawPixelRGB565 (x + j, y + i, ico[i * module_cols + j]); - drawPixel (x + j, y + i, ico[i * icon_cols + j]); + drawPixel (x + j, y + i, ico[i * icon_cols + j]); } } }