initial commit

Makefile

@@ -0,0 +1,8 @@
+CFLAGS = -std=gnu99 `aalib-config --cflags`
+LDFLAGS = `aalib-config --libs` -ljpeg
+OUT = aa
+
+all:
+	gcc -g -o $(OUT) $(CFLAGS) *.c $(LDFLAGS)
+clean:
+	rm -f $(OUT)

main.c

@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <aalib.h>
+#include <jpeglib.h>
+#include <string.h>
+
+aa_context *context;
+struct jpeg_decompress_struct cinfo;
+struct jpeg_error_mgr jerr;
+
+int main(int argc, char** argv)
+{
+	if (argc < 2) {
+		fprintf(stderr, "usage: aa <file>\n");
+		exit(1);
+	}
+  cinfo.err = jpeg_std_error(&jerr);
+  jpeg_create_decompress(&cinfo);
+        FILE *infile;
+        if ((infile = fopen(argv[1], "rb")) == NULL) {
+            fprintf(stderr, "can't open img.jpg\n");
+            exit(2);
+        }
+        jpeg_stdio_src(&cinfo, infile);
+	jpeg_read_header(&cinfo, TRUE);
+  cinfo.scale_num = 1;
+  cinfo.scale_denom = 8;
+	jpeg_start_decompress(&cinfo);
+
+  context = aa_init(&curses_d, &aa_defparams, NULL);
+  if(context == NULL) {
+    fprintf(stderr,"Cannot initialize AA-lib. Sorry\n");
+    exit(1);
+  }
+  aa_defparams.height = aa_defparams.minheight = cinfo.output_height;
+  aa_defparams.width = aa_defparams.minwidth = cinfo.output_width;
+	JSAMPARRAY raw = malloc(sizeof(unsigned char*) * cinfo.output_height);
+	printf("%dx%d, %d components\n", cinfo.output_width, cinfo.output_height, cinfo.output_components);
+	for (int i = 0; i < cinfo.output_height; ++i)
+	{
+		raw[i] = malloc(cinfo.output_components * cinfo.output_width);
+		jpeg_read_scanlines(&cinfo, &raw[i], 1);
+	}
+	jpeg_finish_decompress(&cinfo);
+	jpeg_destroy_decompress(&cinfo);
+  unsigned char* buf = aa_image(context);
+  for (int i = 0; i < aa_imgheight(context); ++i) {
+	  for (int j = 0; j < aa_imgwidth(context); ++j) {
+	  	buf[i*aa_imgwidth(context)+j] = raw[i][j*cinfo.output_components];
+	  }
+  }
+  //memcpy(buf, raw, aa_imgheight(context) * aa_imgwidth(context));
+  aa_fastrender(context, 0, 0, aa_scrwidth(context), aa_scrheight(context));
+  aa_flush(context);
+  getchar();
+  aa_close(context);
+  fclose(infile);
+}