From 29c3487b6fa8ab23004470386cdb229cf68c6a2b Mon Sep 17 00:00:00 2001
From: inconn <62788103+Inconn@users.noreply.github.com>
Date: Sat, 25 Mar 2023 23:09:18 -0500
Subject: [PATCH 1/3] get error log of shader if it fails to compile

---
 sway/desktop/fx_renderer.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sway/desktop/fx_renderer.c b/sway/desktop/fx_renderer.c
index 80ede4d36..3b2aa72d6 100644
--- a/sway/desktop/fx_renderer.c
+++ b/sway/desktop/fx_renderer.c
@@ -107,6 +107,13 @@ static GLuint compile_shader(GLuint type, const GLchar **srcs, size_t srcs_len)
 	glGetShaderiv(shader, GL_COMPILE_STATUS, &ok);
 	if (ok == GL_FALSE) {
 		sway_log(SWAY_ERROR, "Failed to compile shader");
+		
+		char log[1024];
+		GLsizei length = 0;
+		glGetShaderInfoLog(shader, 1024, &length, log);
+		log[length-1] = '\0';
+		sway_log(SWAY_ERROR, "Error: %s", log);
+		
 		glDeleteShader(shader);
 		shader = 0;
 	}

From b84c0ad1814d3edb75f42695b8e8ef569687af6b Mon Sep 17 00:00:00 2001
From: inconn <62788103+Inconn@users.noreply.github.com>
Date: Sun, 26 Mar 2023 17:26:14 -0500
Subject: [PATCH 2/3] neaten error message

---
 sway/desktop/fx_renderer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sway/desktop/fx_renderer.c b/sway/desktop/fx_renderer.c
index 3b2aa72d6..ae1674387 100644
--- a/sway/desktop/fx_renderer.c
+++ b/sway/desktop/fx_renderer.c
@@ -112,7 +112,7 @@ static GLuint compile_shader(GLuint type, const GLchar **srcs, size_t srcs_len)
 		GLsizei length = 0;
 		glGetShaderInfoLog(shader, 1024, &length, log);
 		log[length-1] = '\0';
-		sway_log(SWAY_ERROR, "Error: %s", log);
+		sway_log(SWAY_ERROR, "Error log: \"%s\"", log);
 		
 		glDeleteShader(shader);
 		shader = 0;

From f7c17ad9629b6dd65a9bc27a75710875bbdc0759 Mon Sep 17 00:00:00 2001
From: inconn <62788103+Inconn@users.noreply.github.com>
Date: Sun, 26 Mar 2023 17:26:47 -0500
Subject: [PATCH 3/3] also add log for when gl program fails to link

---
 sway/desktop/fx_renderer.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sway/desktop/fx_renderer.c b/sway/desktop/fx_renderer.c
index ae1674387..4cde8c3b4 100644
--- a/sway/desktop/fx_renderer.c
+++ b/sway/desktop/fx_renderer.c
@@ -158,6 +158,13 @@ static GLuint link_program(const GLchar *frag_src, enum fx_gles2_shader_source s
 	glGetProgramiv(prog, GL_LINK_STATUS, &ok);
 	if (ok == GL_FALSE) {
 		sway_log(SWAY_ERROR, "Failed to link shader");
+
+		char log[1024];
+		GLsizei length = 0;
+		glGetProgramInfoLog(prog, 1024, &length, log);
+		log[length-1] = '\0';
+		sway_log(SWAY_ERROR, "Error log: \"%s\"", log);
+
 		glDeleteProgram(prog);
 		goto error;
 	}