support nvidia prime gpu offloading

launch

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+executable="$1"
+prime="prime-run"
+
+if command -v $prime &> /dev/null
+then
+    echo "launching $executable with nvidia prime offloading"
+    $prime $executable
+else
+    $executable
+fi

makefile

@@ -17,6 +17,7 @@ SHADER_INCLUDES = $(shell find $(SHADER_INCLUDE_DIR) -name *.glsl)
 SHADER_TARGETS = $(SHADERS:$(SHADER_ROOT_DIR)/%.glsl=$(SHADER_TARGET_DIR)/%.compute)
 
 TARGET = $(BIN_DIR)/oglc
+LAUNCH = "./launch"
 
 CC = gcc
 LIBS = `pkg-config --static --libs glew sdl2 cglm`
@@ -47,6 +48,6 @@ clean:
 	-rm */*.o
 
 run: $(TARGET)
-	$(TARGET)
+	$(LAUNCH) $(TARGET)
 
 .PHONY: run clean

src/gfx.c

@@ -48,9 +48,11 @@ SDL_Window* gfxInit(int width, int height)
 
     // intiliased opengl
 
+    printf("%s\n", glGetString(GL_RENDERER));
+
     int availableAttributes;
     glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &availableAttributes);
-    //printf("max vertex attributes %d\n", availableAttributes);
+    printf("max vertex attributes %d\n", availableAttributes);
 
     return sdlWindow;
 }