add vec3 and vec4 and shader uniform functions for those

1 files changed, 28 insertions, 0 deletions

diff --git a/src/graphics/shader.c b/src/graphics/shader.c
index 83c8407..f7f5545 100644
--- a/src/graphics/shader.c
+++ b/src/graphics/shader.c
@@ -203,6 +203,34 @@ int mgl_shader_program_set_uniform_vec2f(mgl_shader_program *self, const char *u
     return 0;
 }
 
+int mgl_shader_program_set_uniform_vec3f(mgl_shader_program *self, const char *uniform_name, mgl_vec3f value) {
+    mgl_context *context = mgl_get_context();
+    int uniform_location = context->gl.glGetUniformLocation(self->id, uniform_name);
+    if(uniform_location == -1) {
+        fprintf(stderr, "mgl error: no uniform by the name %s was found in the shader\n", uniform_name);
+        return -1;
+    }
+
+    context->gl.glUseProgram(self->id);
+    context->gl.glUniform3f(uniform_location, value.x, value.y, value.z);
+    context->gl.glUseProgram(0);
+    return 0;
+}
+
+int mgl_shader_program_set_uniform_vec4f(mgl_shader_program *self, const char *uniform_name, mgl_vec4f value) {
+    mgl_context *context = mgl_get_context();
+    int uniform_location = context->gl.glGetUniformLocation(self->id, uniform_name);
+    if(uniform_location == -1) {
+        fprintf(stderr, "mgl error: no uniform by the name %s was found in the shader\n", uniform_name);
+        return -1;
+    }
+
+    context->gl.glUseProgram(self->id);
+    context->gl.glUniform4f(uniform_location, value.x, value.y, value.z, value.w);
+    context->gl.glUseProgram(0);
+    return 0;
+}
+
 /* TODO: Optimize glUseProgram */
 void mgl_shader_program_use(mgl_shader_program *shader_program) {
     mgl_context *context = mgl_get_context();