My name is Sylvain Masson. I have a background as an electronics technician. It was after studying graphic displays using a Brigetek"s EVE graphics controller with the Gameduino library that I decided to start the EvEGL project. I wanted to develop a new library that would use the power of the EVE chips, but without necessarily having to know how they work. This project was entirely developed around the PJRC's Teensy boards.
Now I would like to share my work for the benefit of the Open Source community.
https://github.com/sylmasson/EvEGLTo illustrate the simplicity of this library, let's take a look at the « EvEGL TextBlock Demo »
https://www.youtube.com/watch?v=ltXed7DeuFM
You can see what this demo can do with so few lines of code.
//
// EvEGL - TextBlock Demo
//
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
The MIT License (MIT)
Copyright (c) 2024 Sylvain Masson
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the “Software”), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to
do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <EvEGL.h>
#define DISP_1024
// Change CS and RST according to your configuration
#ifdef DISP_1024
#define CS 16
#define RST 14
#else
#define CS 9
#define RST 14
#endif
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
EvDisplay *Disp;
EvSelector *AlignX;
EvLabel *Title, *Status;
EvLabel *FontLab, *SpLab, *PadLab;
EvNumInt *FontSize, *Spacing, *Padding;
EvCheckBox *Wrap;
EvTextBlock *Page;
EvShell Shell(Serial);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
const char MIT_License[] =
"The MIT License (MIT)\n\n\
Copyright (c) 2024 Sylvain Masson\n\n\
Permission is hereby granted, free of charge, to any person obtaining a copy of this \
software and associated documentation files (the \"Software\"), to deal in the Software \
without restriction, including without limitation the rights to use, copy, modify, merge, \
publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons \
to whom the Software is furnished to do so, subject to the following conditions:\n\n\
The above copyright notice and this permission notice shall be included in all \
copies or substantial portions of the Software.\n\n\
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING \
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND \
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, \
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, \
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n";
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static const uint8_t sAlignIconsX_160x40_data[85] =
{
0x78, 0x01, 0xED, 0xD6, 0x31, 0x0A, 0xC0, 0x30, 0x0C, 0x04, 0xC1, 0xEC, 0x0B, 0xF2, 0xFF, 0xD7,
0x3A, 0x7D, 0x02, 0xC2, 0x07, 0x01, 0x61, 0xB4, 0x53, 0x2F, 0x46, 0xC5, 0x15, 0x5E, 0xF7, 0x5A,
0x97, 0x24, 0x4D, 0x46, 0xC9, 0xEE, 0xF4, 0x4E, 0xEA, 0x44, 0x32, 0x4E, 0x92, 0xB8, 0xAE, 0x29,
0x6D, 0x3E, 0xF2, 0x46, 0x12, 0xCF, 0xB8, 0x4F, 0xEA, 0xC4, 0xE6, 0x4E, 0xB1, 0x3B, 0xB2, 0x93,
0x3A, 0x91, 0x8C, 0x93, 0x24, 0xF6, 0xFF, 0xF2, 0x41, 0x12, 0xFF, 0x73, 0x9F, 0x24, 0x0D, 0xF4,
0x00, 0x9D, 0x8E, 0x07, 0xE7
};
static const EvBmp sAlignIconsX_160x40 = {ZIP_DATA, PALETTED4444, 160, 40, 4, 6400, 85, sAlignIconsX_160x40_data, "AlignIconsX_160x40"};
const EvBmp *AlignIconsX_160x40 = &sAlignIconsX_160x40;
extern const EvFont *Segoeprb_24_L4;
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void setup(void)
{
Serial.begin(500000);
#ifdef DISP_1024
Disp = EvDisplay::Create(1024, 600, "Disp", EvConfig_1024x600_70, CS, RST, 30000000, &SPI);
#else
Disp = EvDisplay::Create(800, 480, "Disp", EvConfig_800x480_50, CS, RST, 30000000, &SPI);
#endif
Title = EvLabel::Create(10, 5, "EvEGL TextBlock Demo", 27, Disp, "Title");
Title->SetOnTouch(OnTouchTitle);
Status = EvLabel::Create(390, 5, 400, 45, Disp, "Status");
Status->TextAlign(RIGHT_CENTER);
Status->TextFont(26);
Page = EvTextBlock::Create(10, 100, 780, 370, Disp, "Page");
Page->TextLabel(MIT_License);
Page->TextAlign(LEFT_TOP);
Page->TextFont(26);
AlignX = EvSelector::Create(10, 50, 160, 40, Disp, "AlignX");
AlignX->SetColor(CL_DEFAULT_BG);
AlignX->SetBmp(AlignIconsX_160x40, 4);
FontLab = EvLabel::Create(180, 55, "Font:", 26, Disp, "FontLab");
FontSize = EvNumInt::Create(240, 50, 70, 40, Disp, "FontSize");
FontSize->SetRange(20, 31);
FontSize->TextFont(26);
FontSize->SetValue(26);
SpLab = EvLabel::Create(320, 55, "Spacing:", 26, Disp, "SpLab");
Spacing = EvNumInt::Create(420, 50, 0, FontSize, Disp, "Spacing");
Spacing->SetRange(-5, 25);
Spacing->SetFormat("%+ld");
PadLab = EvLabel::Create(500, 55, "Padding:", 26, Disp, "PadLab");
Padding = EvNumInt::Create(600, 50, 10, Spacing, Disp, "Padding");
Page->TextPadding(10, 10);
Wrap = EvCheckBox::Create(690, 55, "Wrap", 26, Disp, "Wrap");
Disp->SetOnUpdateFPS(OnUpdateFPS);
AlignX->SetOnChange(OnChangeAlignX);
FontSize->SetOnChange(OnChangeFont);
Spacing->SetOnChange(OnChangeSpacing);
Padding->SetOnChange(OnChangePadding);
Wrap->SetOnChange(OnChangeWrap);
Disp->UnloadFont(31);
Disp->LoadFont(Segoeprb_24_L4, 31);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void loop(void)
{
if (Disp->Update())
{
// Synchronous process here - Every 16.67 msec by default
}
while (EvIn->available())
Shell.Input(EvIn->read());
// Asynchronous process here
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnTouchTitle(EvLabel *Sender, const EvTouchEvent *Touch)
{
if (Touch->event == TOUCH_DOUBLE)
SystemColor.SwitchTheme();
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnChangeAlignX(EvSelector *Sender, int32_t Value)
{
Page->TextAlign(Value);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnChangeFont(EvNumInt *Sender, int32_t Value)
{
Page->TextFont(Value);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnChangeSpacing(EvNumInt *Sender, int32_t Value)
{
Page->LineSpacing((int)Value);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnChangePadding(EvNumInt *Sender, int32_t Value)
{
Page->TextPadding(Value, Value);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnChangeWrap(EvCheckBox *Sender, int32_t Value)
{
Page->WrapText(Value);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void OnUpdateFPS(EvDisplay *Sender, uint32_t TimeUsed, uint16_t FrameCount, uint16_t MaxDL)
{
char str[80];
snprintf(str, sizeof(str) - 1, "%u FPS %4.2f msec/frame DL=%04u", FrameCount, TimeUsed / (FrameCount * 1000.0), MaxDL);
Status->TextColor(MaxDL > 6500 ? CL_RED : CL_BLUE);
Status->TextLabel(str);
}
Author
Topic: EvEGL: New library for Bridgetek's EVE graphics controller (Read 58 times)