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Merge pull request #307 from solhuebner/patch-4

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Fix VirtualMatrixPanel scan rates
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mrfaptastic 2022-08-16 20:43:20 +01:00 committed by GitHub
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ESP32-VirtualMatrixPanel-I2S-DMA.h
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@ -3,11 +3,11 @@
/******************************************************************* /*******************************************************************
Class contributed by Brian Lough, and expanded by Faptastic. Class contributed by Brian Lough, and expanded by Faptastic.
Originally designed to allow CHAINING of panels together to create Originally designed to allow CHAINING of panels together to create
a 'bigger' display of panels. i.e. Chaining 4 panels into a 2x2 a 'bigger' display of panels. i.e. Chaining 4 panels into a 2x2
grid. grid.
However, the function of this class has expanded now to also manage 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 the output for 1/16 scan panels, as the core DMA library is designed
ONLY FOR 1/16 scan matrix panels. ONLY FOR 1/16 scan matrix panels.
@ -19,22 +19,27 @@
#include "ESP32-HUB75-MatrixPanel-I2S-DMA.h" #include "ESP32-HUB75-MatrixPanel-I2S-DMA.h"
#ifndef NO_GFX #ifndef NO_GFX
#include <Fonts/FreeSansBold12pt7b.h> #include <Fonts/FreeSansBold12pt7b.h>
#endif #endif
struct VirtualCoords { struct VirtualCoords
{
int16_t x; int16_t x;
int16_t y; int16_t y;
int16_t virt_row; // chain of panels row int16_t virt_row; // chain of panels row
int16_t virt_col; // chain of panels col 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 #ifdef USE_GFX_ROOT
class VirtualMatrixPanel : public GFX class VirtualMatrixPanel : public GFX
@ -42,279 +47,296 @@ class VirtualMatrixPanel : public GFX
class VirtualMatrixPanel : public Adafruit_GFX class VirtualMatrixPanel : public Adafruit_GFX
#else #else
class VirtualMatrixPanel class VirtualMatrixPanel
#endif #endif
{ {
public: public:
int16_t virtualResX; int16_t virtualResX;
int16_t virtualResY; int16_t virtualResY;
int16_t vmodule_rows; int16_t vmodule_rows;
int16_t vmodule_cols; int16_t vmodule_cols;
int16_t panelResX; int16_t panelResX;
int16_t panelResY; int16_t panelResY;
int16_t dmaResX; // The width of the chain in pixels (as the DMA engine sees it)
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 #ifdef USE_GFX_ROOT
: GFX(_vmodule_cols*_panelResX, _vmodule_rows*_panelResY) : GFX(_vmodule_cols * _panelResX, _vmodule_rows * _panelResY)
#elif !defined NO_GFX #elif !defined NO_GFX
: Adafruit_GFX(_vmodule_cols*_panelResX, _vmodule_rows*_panelResY) : 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);
#endif #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); } this->display = &disp;
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: panelResX = _panelResX;
panelResY = _panelResY;
virtual VirtualCoords getCoords(int16_t &x, int16_t &y);
VirtualCoords coords; vmodule_rows = _vmodule_rows;
vmodule_cols = _vmodule_cols;
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? virtualResX = vmodule_cols * _panelResX;
bool _rotate = false; virtualResY = vmodule_rows * _panelResY;
PANEL_SCAN_RATE _panelScanRate = NORMAL_ONE_SIXTEEN; 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 }; // end Class header
/** /**
* Calculate virtual->real co-ordinate mapping to underlying single chain of panels connected to ESP32. * 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. * Not thread safe, but not a concern for ESP32 sketch anyway... I think.
*/ */
inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t &x, int16_t &y) { 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 // 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? // Do we want to rotate?
if (_rotate){ if (_rotate)
int16_t temp_x=x; {
x=y; int16_t temp_x = x;
y=virtualResY-1-temp_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! if (x < 0 || x >= virtualResX || y < 0 || y >= virtualResY)
//Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y); { // Co-ordinates go from 0 to X-1 remember! otherwise they are out of range!
return coords; // Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y);
} return coords;
}
// Stupidity check // Stupidity check
if ( (vmodule_rows == 1) && (vmodule_cols == 1)) // single panel... if ((vmodule_rows == 1) && (vmodule_cols == 1)) // single panel...
{ {
coords.x = x; coords.x = x;
coords.y = y; coords.y = y;
return coords; }
} else
{
uint8_t row = (y / panelResY) + 1; //a non indexed 0 row number 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 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 (_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 // First portion gets you to the correct offset for the row you need
// Second portion inverts the x on the row // 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 // inverts the y the row
coords.y = panelResY - 1 - (y % panelResY); coords.y = panelResY - 1 - (y % panelResY);
} }
else else
{ {
// Normal chain pixel co-ordinate // Normal chain pixel co-ordinate
coords.x = x + ((y / panelResY) * (virtualResX)) ; coords.x = x + ((y / panelResY) * (virtualResX));
coords.y = y % panelResY; coords.y = y % panelResY;
} }
}
// Reverse co-ordinates if panel chain from ESP starts from the TOP RIGHT // Reverse co-ordinates if panel chain from ESP starts from the TOP RIGHT
if (_chain_top_down) 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)
{ {
/* coords.x += ((coords.x / panelResX) + 1) * panelResX; // 1st, 3rd 'block' of 8 rows of pixels, offset by panel width in DMA buffer
const HUB75_I2S_CFG _cfg = this->display->getCfg(); }
coords.x = (_cfg.mx_width * _cfg.chain_length - 1) - coords.x; else
coords.y = (_cfg.mx_height-1) - coords.y; {
*/ coords.x += (coords.x / panelResX) * panelResX; // 2nd, 4th 'block' of 8 rows of pixels, offset by panel width in DMA buffer
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 // http://cpp.sh/4ak5u
as if the panel is 2 * W and 0.5 * H ! // 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("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 Serial.print("OneEightScanPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") ");
// coords.y = (y / 16)*8 + (y & 0b00000111); // to
coords.y = (y >> 4)*8 + (y & 0b00000111); 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
}
/* if (y < 32)
Serial.print("OneEightScanPanel Mapping ("); Serial.print(x, DEC); Serial.print(","); Serial.print(y, DEC); Serial.print(") "); coords.y = (y >> 4) * 8 + (y & 0b00000111);
// to else
Serial.print("to ("); Serial.print(coords.x, DEC); Serial.print(","); Serial.print(coords.y, DEC); Serial.println(") "); {
*/ coords.y = ((y - 32) >> 4) * 8 + (y & 0b00000111);
} coords.x += 256;
}
}
if ( _panelScanRate == ONE_EIGHT_16) // Serial.print("Mapping to x: "); Serial.print(coords.x, DEC); Serial.print(", y: "); Serial.println(coords.y, DEC);
{ return coords;
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;
} }
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); getCoords(x, y);
this->display->drawPixel(coords.x, coords.y, color); 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); 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); 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); 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 #ifdef USE_GFX_ROOT
// Support for CRGB values provided via FastLED // Support for CRGB values provided via FastLED
inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, CRGB color) inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, CRGB color)
{ {
getCoords(x, y); getCoords(x, y);
this->display->drawPixel(coords.x, coords.y, color); this->display->drawPixel(coords.x, coords.y, color);
} }
inline void VirtualMatrixPanel::fillScreen(CRGB color) inline void VirtualMatrixPanel::fillScreen(CRGB color)
{ {
this->display->fillScreen(color); this->display->fillScreen(color);
} }
#endif #endif
inline void VirtualMatrixPanel::setRotate(bool rotate) { inline void VirtualMatrixPanel::setRotate(bool rotate)
_rotate=rotate; {
_rotate = rotate;
#ifndef NO_GFX #ifndef NO_GFX
// We don't support rotation by degrees. // We don't support rotation by degrees.
if (rotate) { setRotation(1); } else { setRotation(0); } if (rotate)
{
setRotation(1);
}
else
{
setRotation(0);
}
#endif #endif
} }
inline void VirtualMatrixPanel::setPhysicalPanelScanRate(PANEL_SCAN_RATE rate) { inline void VirtualMatrixPanel::setPhysicalPanelScanRate(PANEL_SCAN_RATE rate)
_panelScanRate=rate; {
_panelScanRate = rate;
} }
#ifndef NO_GFX #ifndef NO_GFX
inline void VirtualMatrixPanel::drawDisplayTest() inline void VirtualMatrixPanel::drawDisplayTest()
{ {
this->display->setFont(&FreeSansBold12pt7b); this->display->setFont(&FreeSansBold12pt7b);
this->display->setTextColor(this->display->color565(255, 255, 0)); this->display->setTextColor(this->display->color565(255, 255, 0));
this->display->setTextSize(1); 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);
}
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 #endif
/* /*
// need to recreate this one, as it wouldn't work to just map where it starts. // 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) { 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 // This is a call to this libraries version of drawPixel
// which will map each pixel, which is what we want. // which will map each pixel, which is what we want.
//drawPixelRGB565 (x + j, y + i, ico[i * module_cols + j]); //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]);
} }
} }
} }