From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Fri, 12 Oct 2012 20:14:46 +0000 (+0200)
Subject: Output the chained shaders to temporary files instead of to stdout, since it's near... 
X-Git-Tag: 1.0~302
X-Git-Url: https://git.sesse.net/?p=movit;a=commitdiff_plain;h=62504944698295c8c48d88df124855af6874fdfe;hp=1a595d0396e943d09a1459707785d66406deb354

Output the chained shaders to temporary files instead of to stdout, since it's near-impossible to see the test output with so much stuff in the way.
---

diff --git a/.gitignore b/.gitignore
index a515fe1..3790ba3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ perf.data
 *.dot
 demo
 effect_chain_test
+chain-*.frag
diff --git a/effect_chain.cpp b/effect_chain.cpp
index c3776e8..a549087 100644
--- a/effect_chain.cpp
+++ b/effect_chain.cpp
@@ -242,7 +242,18 @@ Phase *EffectChain::compile_glsl_program(
 	}
 	frag_shader += std::string("#define INPUT ") + effects.back()->effect_id + "\n";
 	frag_shader.append(read_file("footer.frag"));
-	printf("%s\n", frag_shader.c_str());
+
+	// Output shader to a temporary file, for easier debugging.
+	static int compiled_shader_num = 0;
+	char filename[256];
+	sprintf(filename, "chain-%03d.frag", compiled_shader_num++);
+	FILE *fp = fopen(filename, "w");
+	if (fp == NULL) {
+		perror(filename);
+		exit(1);
+	}
+	fprintf(fp, "%s\n", frag_shader.c_str());
+	fclose(fp);
 	
 	GLuint glsl_program_num = glCreateProgram();
 	GLuint vs_obj = compile_shader(read_file("vs.vert"), GL_VERTEX_SHADER);