254 lines
7.3 KiB
C++
254 lines
7.3 KiB
C++
/*
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* Copyright (C) EdgeTX
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "edgetx.h"
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#if defined(COLORLCD)
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// Scaling for RBG565 to RGB888
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uint8_t rbScale[32] = {
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0,8,16,24,32,41,49,57,65,74,82,90,98,106,115,123,131,139,148,156,164,172,180,189,197,205,213,222,230,238,246,255
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};
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uint8_t gScale[64] = {
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0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,85,89,93,97,101,105,109,113,117,121,125,
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129,133,137,141,145,149,153,157,161,165,170,174,178,182,186,190,194,198,202,206,210,214,218,222,226,230,234,238,242,246,250,255
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};
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#endif
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#if defined(COLORLCD) && (defined(STM32H7) || defined(STM32H7RS))
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb/stb_image_write.h"
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static void convert_RGB565_to_RGB888(uint8_t* dst, lv_img_dsc_t* src, coord_t w, coord_t h)
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{
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++) {
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lv_color_t pixel = lv_img_buf_get_px_color(src, x, y, {});
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*(dst++) = rbScale[pixel.ch.red];
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*(dst++) = gScale[pixel.ch.green];
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*(dst++) = rbScale[pixel.ch.blue];
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}
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}
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}
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static const char* writeResult = nullptr;
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static void writeScreenToFile(void* context, void* data, int size)
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{
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const char* file = (const char*)context;
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FIL fp;
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UINT written = 0;
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FRESULT result = f_open(&fp, file, FA_CREATE_ALWAYS | FA_WRITE);
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if (result == FR_OK) {
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result = f_write(&fp, data, size, &written);
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}
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f_close(&fp);
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if (result != FR_OK || (int)written != size) {
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writeResult = SDCARD_ERROR(result);
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}
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}
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static const char* _writeScreenshot()
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{
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char filename[42]; // /SCREENSHOTS/screen-2013-01-01-123540.bmp
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if (sdIsFull()) {
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return STR_SDCARD_FULL_EXT;
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}
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// check and create folder here
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char* s = strAppend(filename, SCREENSHOTS_PATH);
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const char * error = sdCheckAndCreateDirectory(filename);
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if (error) {
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return error;
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}
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lv_img_dsc_t* snapshot = lv_snapshot_take(lv_scr_act(), LV_IMG_CF_TRUE_COLOR);
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if (!snapshot) {
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return "LVGL error creating snapshot";
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}
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s = strAppend(s, "/screen");
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s = strAppendDate(s, true);
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strAppend(s, ".png");
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writeResult = nullptr;
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// allocate enough for 3 channels
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auto pixels = LCD_W * LCD_H;
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auto stride = LCD_W * 3;
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uint8_t* img = (uint8_t*)malloc(pixels * 3);
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convert_RGB565_to_RGB888(img, snapshot, LCD_W, LCD_H);
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stbi_write_png_to_func(writeScreenToFile, filename, LCD_W, LCD_H, 3, img, stride);
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free(img);
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lv_snapshot_free(snapshot);
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return writeResult;
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}
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#else
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#if defined(COLORLCD)
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constexpr uint16_t BMP_HEADERSIZE = 0x36;
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constexpr uint8_t BMP_BITS_PER_PIXEL = 32;
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#else
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constexpr uint16_t BMP_HEADERSIZE = 0x76;
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constexpr uint8_t BMP_BITS_PER_PIXEL = 4;
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#endif
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constexpr uint32_t BMP_FILESIZE = uint32_t(BMP_HEADERSIZE + (LCD_W * LCD_H) * BMP_BITS_PER_PIXEL / 8);
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const uint8_t BMP_HEADER[] = {
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'B', 'M',
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/* file size */ BMP_FILESIZE & 0xFF, (BMP_FILESIZE >> 8) & 0xFF, (BMP_FILESIZE >> 16) & 0xFF, (BMP_FILESIZE >> 24) & 0xFF,
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0x00, 0x00, 0x00, 0x00,
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/* header size */ BMP_HEADERSIZE, 0x00, 0x00, 0x00,
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/* extra header size */ 0x28, 0x00, 0x00, 0x00,
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/* width */ LCD_W & 0xFF, LCD_W >> 8, 0x00, 0x00,
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/* height */ LCD_H & 0xFF, LCD_H >> 8, 0x00, 0x00,
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/* planes */ 0x01, 0x00,
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/* depth */ BMP_BITS_PER_PIXEL, 0x00,
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/* compression */ 0x00, 0x00, 0x00, 0x00,
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/* image size */ 0x00, 0x00, 0x00, 0x00,
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/* hor res 72dpi */ 0x13, 0x0B, 0x00, 0x00,
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/* ver res 72 dpi */ 0x13, 0x0B, 0x00, 0x00,
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/* num colors */ 0x00, 0x00, 0x00, 0x00,
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/* important colors */ 0x00, 0x00, 0x00, 0x00,
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#if !defined(COLORLCD)
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/* grayscale palette */
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#if defined(OLED_SCREEN)
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0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x00, 0x22, 0x22, 0x22, 0x00, 0x33, 0x33, 0x33, 0x00,
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0x44, 0x44, 0x44, 0x00, 0x55, 0x55, 0x55, 0x00, 0x66, 0x66, 0x66, 0x00, 0x77, 0x77, 0x77, 0x00,
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0x88, 0x88, 0x88, 0x00, 0x99, 0x99, 0x99, 0x00, 0xaa, 0xaa, 0xaa, 0x00, 0xbb, 0xbb, 0xbb, 0x00,
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0xcc, 0xcc, 0xcc, 0x00, 0xdd, 0xdd, 0xdd, 0x00, 0xee, 0xee, 0xee, 0x00, 0xff, 0xff, 0xff, 0x00,
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#else
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0xff, 0xff, 0xff, 0x00, 0xee, 0xee, 0xee, 0x00, 0xdd, 0xdd, 0xdd, 0x00, 0xcc, 0xcc, 0xcc, 0x00,
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0xbb, 0xbb, 0xbb, 0x00, 0xaa, 0xaa, 0xaa, 0x00, 0x99, 0x99, 0x99, 0x00, 0x88, 0x88, 0x88, 0x00,
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0x77, 0x77, 0x77, 0x00, 0x66, 0x66, 0x66, 0x00, 0x55, 0x55, 0x55, 0x00, 0x44, 0x44, 0x44, 0x00,
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0x33, 0x33, 0x33, 0x00, 0x22, 0x22, 0x22, 0x00, 0x11, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00,
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#endif
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#endif
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};
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static const char* _writeScreenshot()
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{
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FIL bmpFile;
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UINT written;
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char filename[42]; // /SCREENSHOTS/screen-2013-01-01-123540.bmp
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if (sdIsFull()) {
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return STR_SDCARD_FULL_EXT;
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}
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// check and create folder here
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strcpy(filename, SCREENSHOTS_PATH);
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const char * error = sdCheckAndCreateDirectory(filename);
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if (error) {
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return error;
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}
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#if defined(RTCLOCK)
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char * tmp = strAppend(&filename[sizeof(SCREENSHOTS_PATH)-1], "/screen");
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tmp = strAppendDate(tmp, true);
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strcpy(tmp, BMP_EXT);
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#endif
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FRESULT result = f_open(&bmpFile, filename, FA_CREATE_ALWAYS | FA_WRITE);
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if (result != FR_OK) {
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return SDCARD_ERROR(result);
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}
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result = f_write(&bmpFile, BMP_HEADER, sizeof(BMP_HEADER), &written);
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if (result != FR_OK || written != sizeof(BMP_HEADER)) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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#if defined(COLORLCD)
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lv_img_dsc_t* snapshot = lv_snapshot_take(lv_scr_act(), LV_IMG_CF_TRUE_COLOR);
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if (!snapshot) {
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f_close(&bmpFile);
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return "LVGL error creating snapshot";
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}
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auto w = snapshot->header.w;
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auto h = snapshot->header.h;
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for (int y = h - 1; y >= 0; y--) {
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for (uint32_t x = 0; x < w; x++) {
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lv_color_t pixel = lv_img_buf_get_px_color(snapshot, x, y, {});
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uint32_t dst = (0xFF << 24)
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| (rbScale[pixel.ch.red] << 16)
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| (gScale[pixel.ch.green] << 8)
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| rbScale[pixel.ch.blue];
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result = f_write(&bmpFile, &dst, sizeof(dst), &written);
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if (result != FR_OK || written != sizeof(dst)) {
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lv_snapshot_free(snapshot);
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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}
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}
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lv_snapshot_free(snapshot);
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#else // stdlcd
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#if LCD_W == 128
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pixel_t inv = g_eeGeneral.invertLCD ? 0xFF : 0;
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#endif
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for (int y=LCD_H-1; y>=0; y-=1) {
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for (int x=0; x<8*((LCD_W+7)/8); x+=2) {
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#if LCD_W == 128
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pixel_t byte = (getPixel(x+1, y) | (getPixel(x, y) << 4)) ^ inv;
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#else
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pixel_t byte = getPixel(x+1, y) | (getPixel(x, y) << 4);
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#endif
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result = f_write(&bmpFile, &byte, 1, &written);
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if (result != FR_OK || written != 1) {
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f_close(&bmpFile);
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return SDCARD_ERROR(result);
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}
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}
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}
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#endif
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f_close(&bmpFile);
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return nullptr;
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}
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#endif
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void writeScreenshot()
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{
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const char* res = _writeScreenshot();
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if (res)
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POPUP_WARNING(res);
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}
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