100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
#define _GNU_SOURCE
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <time.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <FreeImage.h>
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#include <GLES/gl.h>
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#include <libreborn/libreborn.h>
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#include "screenshot.h"
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// 4 (Year) + 1 (Hyphen) + 2 (Month) + 1 (Hyphen) + 2 (Day) + 1 (Underscore) + 2 (Hour) + 1 (Period) + 2 (Minute) + 1 (Period) + 2 (Second) + 1 (Null Terminator)
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#define TIME_SIZE 20
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// Take Screenshot
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void take_screenshot() {
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time_t rawtime;
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struct tm *timeinfo;
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time(&rawtime);
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timeinfo = localtime(&rawtime);
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char time[TIME_SIZE];
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strftime(time, TIME_SIZE, "%Y-%m-%d_%H.%M.%S", timeinfo);
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char *screenshots = NULL;
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asprintf(&screenshots, "%s/.minecraft-pi/screenshots", getenv("HOME"));
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int num = 1;
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char *file = NULL;
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asprintf(&file, "%s/%s.png", screenshots, time);
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while (access(file, F_OK) != -1) {
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asprintf(&file, "%s/%s-%i.png", screenshots, time, num);
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num++;
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}
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GLint viewport[4];
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glGetIntegerv(GL_VIEWPORT, viewport);
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int x = viewport[0];
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int y = viewport[1];
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int width = viewport[2];
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int height = viewport[3];
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int line_size = width * 3;
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int size = height * line_size;
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unsigned char pixels[size];
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glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, pixels);
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#if SDL_BYTEORDER == SDL_LIL_ENDIAN
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// Swap Red And Blue
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for (int i = 0; i < (size / 3); i++) {
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int pixel = i * 3;
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int red = pixels[pixel];
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int blue = pixels[pixel + 2];
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pixels[pixel] = blue;
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pixels[pixel + 2] = red;
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}
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#endif
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FIBITMAP *image = FreeImage_ConvertFromRawBits(pixels, width, height, line_size, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK, 0);
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if (!FreeImage_Save(FIF_PNG, image, file, 0)) {
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INFO("Screenshot Failed: %s", file);
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} else {
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INFO("Screenshot Saved: %s", file);
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}
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FreeImage_Unload(image);
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free(file);
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free(screenshots);
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}
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// Init
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__attribute__((constructor)) static void init() {
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// Init FreeImage
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FreeImage_Initialise(0);
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// Screenshots Folder
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char *screenshots_folder = NULL;
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asprintf(&screenshots_folder, "%s/.minecraft-pi/screenshots", getenv("HOME"));
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{
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// Check Screenshots Folder
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struct stat obj;
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if (stat(screenshots_folder, &obj) != 0 || !S_ISDIR(obj.st_mode)) {
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// Create Screenshots Folder
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int ret = mkdir(screenshots_folder, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
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if (ret != 0) {
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// Unable To Create Folder
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ERR("Error Creating Directory: %s: %s", screenshots_folder, strerror(errno));
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}
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}
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}
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free(screenshots_folder);
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} |