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- /**
- * Copyright (c) 2017-2018 Tara Keeling
- * 2020 Philippe G.
- *
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
- #include <string.h>
- #include <ctype.h>
- #include <stdint.h>
- #include "freertos/FreeRTOS.h"
- #include "freertos/task.h"
- #include "driver/gpio.h"
- #include "esp_log.h"
- #include "gds.h"
- #include "gds_private.h"
- static struct GDS_Device Display;
- static char TAG[] = "gds";
- struct GDS_Device* GDS_AutoDetect( char *Driver, GDS_DetectFunc DetectFunc[] ) {
- for (int i = 0; DetectFunc[i]; i++) {
- if (DetectFunc[i](Driver, &Display)) {
- ESP_LOGD(TAG, "Detected driver %p", &Display);
- return &Display;
- }
- }
-
- return NULL;
- }
- void GDS_ClearExt(struct GDS_Device* Device, bool full, ...) {
- bool commit = true;
-
- if (full) {
- GDS_Clear( Device, GDS_COLOR_BLACK );
- } else {
- va_list args;
- va_start(args, full);
- commit = va_arg(args, int);
- int x1 = va_arg(args, int), y1 = va_arg(args, int), x2 = va_arg(args, int), y2 = va_arg(args, int);
- if (x2 < 0) x2 = Device->Width - 1;
- if (y2 < 0) y2 = Device->Height - 1;
- GDS_ClearWindow( Device, x1, y1, x2, y2, GDS_COLOR_BLACK );
- va_end(args);
- }
-
- Device->Dirty = true;
- if (commit) GDS_Update(Device);
- }
- void GDS_Clear( struct GDS_Device* Device, int Color ) {
- memset( Device->Framebuffer, Color, Device->FramebufferSize );
- }
- void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2, int Color ) {
- // cheap optimization on boundaries
- if (x1 == 0 && x2 == Device->Width - 1 && y1 % 8 == 0 && (y2 + 1) % 8 == 0) {
- memset( Device->Framebuffer + (y1 / 8) * Device->Width, 0, (y2 - y1 + 1) / 8 * Device->Width );
- } else {
- for (int y = y1; y <= y2; y++) {
- for (int x = x1; x <= x2; x++) {
- Device->DrawPixelFast( Device, x, y, Color);
- }
- }
- }
- }
- void GDS_Update( struct GDS_Device* Device ) {
- if (Device->Dirty) Device->Update( Device );
- Device->Dirty = false;
- }
- bool GDS_Reset( struct GDS_Device* Device ) {
- if ( Device->RSTPin >= 0 ) {
- gpio_set_level( Device->RSTPin, 0 );
- vTaskDelay( pdMS_TO_TICKS( 100 ) );
- gpio_set_level( Device->RSTPin, 1 );
- }
- return true;
- }
- void GDS_SetContrast( struct GDS_Device* Device, uint8_t Contrast ) { Device->SetContrast( Device, Contrast); }
- void GDS_SetHFlip( struct GDS_Device* Device, bool On ) { Device->SetHFlip( Device, On ); }
- void GDS_SetVFlip( struct GDS_Device* Device, bool On ) { Device->SetVFlip( Device, On ); }
- int GDS_GetWidth( struct GDS_Device* Device ) { return Device->Width; }
- int GDS_GetHeight( struct GDS_Device* Device ) { return Device->Height; }
- void GDS_DisplayOn( struct GDS_Device* Device ) { Device->DisplayOn( Device ); }
- void GDS_DisplayOff( struct GDS_Device* Device ) { Device->DisplayOff( Device ); }
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