Makefile

@@ -1,4 +1,4 @@
-CFLAGS = -std=c11 -pedantic -Wall -Wextra -O2 -Ofast -D_DEFAULT_SOURCE -D_FORTIFY_SOURCE=2
+CFLAGS = -ansi -pedantic -Wall -Wextra -O2 -Ofast -D_DEFAULT_SOURCE
 LDFLAGS = -lX11 -lGL -lGLEW -lm -lrt
 
 shadermeh: shadermeh.o window.o shader.o

shadermeh.c

@@ -1,5 +1,4 @@
 /* SPDX-License-Identifier: ISC */
-
 /*
  * shadermeh.c
  *
@@ -7,9 +6,6 @@
  */
 #include "shadermeh.h"
 #include <fcntl.h>
-#include <errno.h>
-#define HAVE_ARCH_STRUCT_FLOCK
-#include <linux/fcntl.h>
 
 static GLfloat vertex_buffer[] = {
 	-1.0f, -1.0f, 0.0f,	/* lower left corner */
@@ -94,7 +90,7 @@ static const struct option long_opts[] = {
 	{ NULL, 0, NULL, 0 },
 };
 
-static const char *short_opts = "r:w:h:s:S";
+static const char *short_opts = "w:h:s:S:r";
 
 static const char *usage_str =
 "shadermeh OPTIONS...\n"
@@ -103,7 +99,6 @@ static const char *usage_str =
 "\n"
 "  --width, -w <pixels>\n"
 "  --height, -h <pixels>\n"
-"  --sampling-rate, -r <sampling rate[Hz]>\n"
 "\n"
 "  --to-stdout, -S\n"
 "\n"
@@ -115,7 +110,6 @@ static const char *usage_str =
 int main(int argc, char **argv)
 {
 	GLuint u_iResolution, u_iTime, u_iTimeDelta, u_iFrame;
-	GLfloat u_iSampleRate;
 	struct timespec start, frame_start, frame_end;
 	unsigned int width, height, iFrame = 0;
 	void *fb32 = NULL, *fb24 = NULL;
@@ -126,9 +120,7 @@ int main(int argc, char **argv)
 	bool to_stdout = false;
 	window *wnd;
 	int i;
-	unsigned int sampling_rate = 0; /* Leaving this at 0 disables audio 
-	                                 * input 
-					 */
+	unsigned int sampling_rate = 0;
 	float in_samples[SND_BUFFER_SIZE];   /* Raw input floats from -1...1 */
 	float norm_samples[SND_BUFFER_SIZE]; /* Normalized samples from 0...1 */
 
@@ -182,43 +174,6 @@ int main(int argc, char **argv)
 			free(fb32);
 			return EXIT_FAILURE;
 		}
-		if(!isatty(STDOUT_FILENO)){
-			long old_pipe_size = fcntl(STDOUT_FILENO, F_GETPIPE_SZ);
-			if(old_pipe_size < 0){
-				perror("Failed to get stdout pipe size");
-			}else{
-
-				int psz = getpagesize();
-				size_t frame_size = (width * height * 3);
-				size_t frame_cnt = psz / frame_size;
-				if((psz % frame_size) != 0){
-					frame_cnt++;
-				}
-				size_t new_pipe_size = frame_size * frame_cnt;
-				int fin_psz = fcntl(STDOUT_FILENO, F_SETPIPE_SZ, 
-					new_pipe_size);
-				if(fin_psz < 0){
-					fprintf(stderr, "Failed to set STDOUT "
-						"pipe size to %zu: %s\n", 
-						new_pipe_size, strerror(errno));
-				}else{
-					fprintf(stderr, "stdout pipe size "
-						"change from %li to %zu "
-							"resulted in %i\n", 
-							old_pipe_size, 
-							new_pipe_size, 
-							fin_psz);
-				}
-				/* A failure to change pipe size is not 
-				 * catastrophic, beacause the application will 
-				 * still perform as needed, just with a bigger 
-				 * or smaller buffer. */
-			}
-		}
-	}
-	if (sampling_rate != 0 && !isatty(STDIN_FILENO)){
-		fputs("Sampling rate specified and STDIN not a tty! "
-			"You habe been warnded!\n", stderr);
 	}
 
 	/********** create window and make context current **********/
@@ -247,7 +202,7 @@ int main(int argc, char **argv)
 
 	glGetIntegerv(GL_MAJOR_VERSION, &major);
 	glGetIntegerv(GL_MINOR_VERSION, &minor);
-	fprintf(stderr,"OpenGL version %d.%d\n", major, minor);
+	printf("OpenGL version %d.%d\n", major, minor);
 
 	/******************** initialization ********************/
 	glViewport(0, 0, width, height);
@@ -284,10 +239,8 @@ int main(int argc, char **argv)
 	u_iTime = glGetUniformLocation(prog, "iTime");
 	u_iTimeDelta = glGetUniformLocation(prog, "iTimeDelta");
 	u_iFrame = glGetUniformLocation(prog, "iFrame;");
-	u_iSampleRate = glGetUniformLocation(prog, "iSampleRate");
 
 	glUniform3f(u_iResolution, width, height, 0.0f);
-	glUniform1f(u_iSampleRate, sampling_rate);
 
 	clock_gettime(CLOCK_MONOTONIC_RAW, &start);