Ken Van Hoeylandt 3250943345
Screenshot app & service (#42)
- Added screenshot app & service (PC-only for now)
- Updated docs with screenshots and new device photo
- Add fake statusbar icons for PC/sim build
- added `lv_screenshot` library based on `lv_100ask_screenshot` from https://github.com/100askTeam/lv_lib_100ask
- T-Deck WiFi is now allocated into SPI RAM
- Created `tt_service_find()` to find services by their id
2024-02-11 22:40:53 +01:00

94 lines
2.6 KiB
C

#include "save_bmp.h"
typedef struct tagBITMAPFILEHEADER {
uint16_t bfType;
uint32_t bfSize;
uint16_t bfReserved1;
uint16_t bfReserved2;
uint32_t bfOffBits;
} __attribute__((packed)) BITMAPFILEHEADER, *PBITMAPFILEHEADER;
typedef struct tagBITMAPINFOHEADER {
uint32_t biSize;
uint32_t biwidth;
uint32_t biheight;
uint16_t biPlanes;
uint16_t biBitCount;
uint32_t biCompression;
uint32_t biSizeImage;
uint32_t biXPelsPerMeter;
uint32_t biYPelsPerMeter;
uint32_t biClrUsed;
uint32_t biClrImportant;
} __attribute__((packed)) BITMAPINFOHEADER, *PBITMAPINFOHEADER;
typedef struct tagRGBQUAD {
uint8_t rgbBlue;
uint8_t rgbGreen;
uint8_t rgbRed;
uint8_t rgbReserved;
} __attribute__((packed)) RGBQUAD;
bool lve_screenshot_save_bmp_file(const uint8_t* image, uint32_t w, uint32_t h, uint32_t bpp, const char* filename) {
BITMAPFILEHEADER tBmpFileHead;
BITMAPINFOHEADER tBmpInfoHead;
uint32_t dwSize;
uint32_t bw;
lv_fs_file_t f;
memset(&tBmpFileHead, 0, sizeof(BITMAPFILEHEADER));
memset(&tBmpInfoHead, 0, sizeof(BITMAPINFOHEADER));
lv_fs_res_t res = lv_fs_open(&f, filename, LV_FS_MODE_WR);
if (res != LV_FS_RES_OK) {
LV_LOG_USER("Can't create output file %s", filename);
return false;
}
tBmpFileHead.bfType = 0x4d42;
tBmpFileHead.bfSize = 0x36 + w * h * (bpp / 8);
tBmpFileHead.bfOffBits = 0x00000036;
tBmpInfoHead.biSize = 0x00000028;
tBmpInfoHead.biwidth = w;
tBmpInfoHead.biheight = h;
tBmpInfoHead.biPlanes = 0x0001;
tBmpInfoHead.biBitCount = bpp;
tBmpInfoHead.biCompression = 0;
tBmpInfoHead.biSizeImage = w * h * (bpp / 8);
tBmpInfoHead.biXPelsPerMeter = 0;
tBmpInfoHead.biYPelsPerMeter = 0;
tBmpInfoHead.biClrUsed = 0;
tBmpInfoHead.biClrImportant = 0;
res = lv_fs_write(&f, &tBmpFileHead, sizeof(tBmpFileHead), &bw);
if (bw != sizeof(tBmpFileHead)) {
LV_LOG_USER("Can't write BMP File Head to %s", filename);
return false;
}
res = lv_fs_write(&f, &tBmpInfoHead, sizeof(tBmpInfoHead), &bw);
if (bw != sizeof(tBmpInfoHead)) {
LV_LOG_USER("Can't write BMP File Info Head to %s", filename);
return false;
}
dwSize = w * bpp / 8;
const uint8_t* pPos = image + (h - 1) * dwSize;
while (pPos >= image) {
res = lv_fs_write(&f, pPos, dwSize, &bw);
if (bw != dwSize) {
LV_LOG_USER("Can't write date to BMP File %s", filename);
return false;
}
pPos -= dwSize;
}
lv_fs_close(&f);
return true;
}