Working WebGl abstraction layer and build process

1 files changed, 37 insertions, 1 deletions

diff --git a/frontend/shared_cpp/OrthographicRenderer.h b/frontend/shared_cpp/OrthographicRenderer.h
index e04b5ec..c72639e 100644
--- a/frontend/shared_cpp/OrthographicRenderer.h
+++ b/frontend/shared_cpp/OrthographicRenderer.h
@@ -25,7 +25,7 @@ struct OrthographicRenderer {
 
 struct OrthographicVertex {
 	Vector2 position;
-	Vector2 color;
+	Vector4 color;
 };
 
 template <uint32 N>
@@ -39,3 +39,39 @@ struct OrthographicShape {
 	void render(OrthographicRenderer* renderer);
 	void unload();
 };
+
+template <uint32 N>
+void OrthographicShape<N>::load(OrthographicRenderer* renderer) {
+	useShader(renderer->shader);
+
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	glGenBuffers(1, &vbo);
+	glBindBuffer(GL_ARRAY_BUFFER, vbo);
+	glBufferData(GL_ARRAY_BUFFER, N * sizeof(OrthographicVertex), &vertices[0], GL_STATIC_DRAW);
+
+	glEnableVertexAttribArray(renderer->attributes.position);
+	glVertexAttribPointer(renderer->attributes.position, 2, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)0);
+
+	glEnableVertexAttribArray(renderer->attributes.color);
+	glVertexAttribPointer(renderer->attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)offsetof(OrthographicVertex, color));
+
+	glBindBuffer(GL_ARRAY_BUFFER, 0);
+	glBindVertexArray(0);
+}
+
+template <uint32 N>
+void OrthographicShape<N>::render(OrthographicRenderer* renderer) {
+	setShaderMat4(renderer->uniforms.model, model);
+
+	glBindVertexArray(vao);
+	glDrawArrays(GL_TRIANGLES, 0, 3);
+	glBindVertexArray(0);
+}
+
+template <uint32 N>
+void OrthographicShape<N>::unload() {
+	glDeleteVertexArrays(1, &vao);
+	glDeleteBuffers(1, &vbo);
+}
\ No newline at end of file