Tasmota/tasmota/xdrv_52_3_berry_display.ino

64 lines
2.0 KiB
C++

/*
xdrv_52_3_berry_display.ino - Berry scripting language, native fucnctions
Copyright (C) 2021 Stephan Hadinger, Berry language by Guan Wenliang https://github.com/Skiars/berry
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_BERRY
#ifdef USE_DISPLAY
#include <berry.h>
#ifdef USE_UNIVERSAL_DISPLAY
Renderer *Init_uDisplay(const char *desc);
#endif // USE_UNIVERSAL_DISPLAY
/*********************************************************************************************\
* Native functions mapped to Berry functions
*
* import display
* display.start(string) -> comptr or nil if failed
*
\*********************************************************************************************/
extern "C" {
int be_disp_start(bvm *vm);
int be_disp_start(bvm *vm) {
#ifdef USE_UNIVERSAL_DISPLAY
int32_t argc = be_top(vm); // Get the number of arguments
if (argc >= 1 && be_isstring(vm, 1)) {
const char * desc = be_tostring(vm, 1);
// remove all objects on stack to avoid warnings in subsequent calls to Berry
be_pop(vm, argc);
Renderer * renderer = Init_uDisplay(desc);
if (renderer) {
be_pushcomptr(vm, renderer);
} else {
be_pushnil(vm);
}
be_return(vm);
}
be_raise(vm, kTypeError, nullptr);
#else // USE_UNIVERSAL_DISPLAY
be_raise(vm, "internal_error", "universal display driver not present");
#endif // USE_UNIVERSAL_DISPLAY
}
}
#endif // USE_DISPLAY
#endif // USE_BERRY