Graphics pipeline

Signed-off-by: Slendi <slendi@socopon.com>

shaders/meson.build

@@ -15,11 +15,13 @@ endif
 
 shader_sources = files(
 	'gradient.comp',
+	'triangle.frag',
+	'triangle.vert',
 )
 
 spirv_shaders = []
 foreach shader : shader_sources
-	shader_name = fs.stem(shader)
+	shader_name = fs.stem(shader.full_path().replace('.', '_'))
 	spirv_shaders += custom_target(
 		shader_name + '_spv',
 		input : shader,

shaders/triangle.frag

@@ -0,0 +1,10 @@
+#version 450
+
+layout (location = 0) in vec3 in_color;
+
+layout (location = 0) out vec4 out_frag_color;
+
+void main() {
+	out_frag_color = vec4(in_color, 1.0f);
+}
+

shaders/triangle.vert

@@ -0,0 +1,21 @@
+#version 450
+
+layout (location = 0) out vec3 out_color;
+
+void main() {
+	const vec3 positions[3] = vec3[3](
+		vec3( 1.0f,  1.0f, 0.0f),
+		vec3(-1.0f,  1.0f, 0.0f),
+		vec3( 0.0f, -1.0f, 0.0f)
+	);
+
+	const vec3 colors[3] = vec3[3](
+		vec3(1.0f, 0.0f, 0.0f),
+		vec3(0.0f, 1.0f, 0.0f),
+		vec3(0.0f, 0.0f, 1.0f)
+	);
+
+	gl_Position = vec4(positions[gl_VertexIndex], 1.0f);
+	out_color = colors[gl_VertexIndex];
+}
+