start anew

1 files changed, 45 insertions, 0 deletions

diff --git a/tools/VGAdump2ppm.c b/tools/VGAdump2ppm.c
new file mode 100644
index 0000000..0c91891
--- /dev/null
+++ b/tools/VGAdump2ppm.c
@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main(int argc, char **argv)
+{
+	uint8_t color_value = 0;
+	uint8_t bits_read = 0;
+	uint8_t channels_read = 0;
+	int pixels_processed = 0;
+	int input;
+
+	/* http://netpbm.sourceforge.net/doc/ppm.html */
+	puts("P3");
+	puts("640 480");
+	puts("7");
+
+	while (1) {
+		input = getchar();
+
+		if (input == EOF)
+			break;
+
+		if (input != '1' && input != '0')
+			continue;
+
+		if (input == '1')
+			color_value |= 1 << (2 - bits_read);
+
+		if (++bits_read == 3) {
+			printf(" %d", color_value);
+
+			color_value = 0;
+			bits_read = 0;
+
+			if (++channels_read == 3) {
+				channels_read = 0;
+
+				putchar(++pixels_processed % 8 == 0 ?
+					'\n' : ' ');
+			}
+		}
+	}
+
+	return 0;
+}