commit 7e614994b24eb29be18bcf0af2880f353012d587
parent a12a857fbfc27178d67de6b61653b0311a79f913
Author: rexim <reximkut@gmail.com>
Date: Fri, 10 Feb 2023 00:46:34 +0700
Fallback to previous shaders if the new one fail to compile
Diffstat:
1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/src/simple_renderer.c b/src/simple_renderer.c
@@ -193,28 +193,39 @@ void simple_renderer_init(Simple_Renderer *sr)
void simple_renderer_reload_shaders(Simple_Renderer *sr)
{
- for (int i = 0; i < COUNT_SIMPLE_SHADERS; ++i) {
- glDeleteProgram(sr->programs[i]);
- }
-
+ GLuint programs[COUNT_SIMPLE_SHADERS];
GLuint shaders[2] = {0};
+ bool ok = true;
+
if (!compile_shader_file(vert_shader_file_path, GL_VERTEX_SHADER, &shaders[0])) {
- exit(1);
+ ok = false;
}
for (int i = 0; i < COUNT_SIMPLE_SHADERS; ++i) {
if (!compile_shader_file(frag_shader_file_paths[i], GL_FRAGMENT_SHADER, &shaders[1])) {
- exit(1);
+ ok = false;
}
- sr->programs[i] = glCreateProgram();
- attach_shaders_to_program(shaders, sizeof(shaders) / sizeof(shaders[0]), sr->programs[i]);
- if (!link_program(sr->programs[i], __FILE__, __LINE__)) {
- exit(1);
+ programs[i] = glCreateProgram();
+ attach_shaders_to_program(shaders, sizeof(shaders) / sizeof(shaders[0]), programs[i]);
+ if (!link_program(programs[i], __FILE__, __LINE__)) {
+ ok = false;
}
glDeleteShader(shaders[1]);
}
glDeleteShader(shaders[0]);
+
+ if (ok) {
+ for (int i = 0; i < COUNT_SIMPLE_SHADERS; ++i) {
+ glDeleteProgram(sr->programs[i]);
+ sr->programs[i] = programs[i];
+ }
+ printf("Reloaded shaders successfully!\n");
+ } else {
+ for (int i = 0; i < COUNT_SIMPLE_SHADERS; ++i) {
+ glDeleteProgram(programs[i]);
+ }
+ }
}
// TODO: Don't render triples of verticies that form a triangle that is completely outside of the screen
