fxsdk/fxlink/tooling/libpng.c
Lephenixnoir 9d30377d90
fxlink: full rewrite; deeper device management and TUI
This commit rewrites the entire device management layer of fxlink on the
libusb side, providing new abstractions that support live/async device
management, including communication.

This system is put to use in a new TUI interactive mode (fxlink -t)
which can run in the background, connects to calculators automatically
without interfering with file transfer tools, and is much more detailed
in its interface than the previous interactive mode (fxlink -i).

The TUI mode will also soon be extended to support sending data.
2023-03-03 00:29:00 +01:00

46 lines
1.5 KiB
C

//---------------------------------------------------------------------------//
// ==>/[_]\ fxlink: A community communication tool for CASIO calculators. //
// |:::| Made by Lephe' as part of the fxSDK. //
// \___/ License: MIT <https://opensource.org/licenses/MIT> //
//---------------------------------------------------------------------------//
#include <fxlink/tooling/libpng.h>
#include <fxlink/logging.h>
int fxlink_libpng_save_raw(struct fxlink_message_image_raw *raw,
char const *path)
{
png_struct *png = png_create_write_struct(PNG_LIBPNG_VER_STRING,
NULL, NULL, NULL);
if(!png)
return elog("failed to write PNG: png_create_write_struct\n");
png_infop info = png_create_info_struct(png);
if(!info)
return elog("failed to write PNG: png_create_info_struct\n");
FILE *fp = fopen(path, "wb");
if(!fp) {
png_destroy_write_struct(&png, &info);
return elog("failed to open '%s' to write PNG: %m\n", path);
}
if(setjmp(png_jmpbuf(png))) {
fclose(fp);
png_destroy_write_struct(&png, &info);
return 1;
}
png_init_io(png, fp);
png_set_IHDR(png, info,
raw->width, raw->height, 8,
PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
png_write_image(png, raw->data);
png_write_end(png, NULL);
png_destroy_write_struct(&png, &info);
fclose(fp);
return 0;
}