Initial work on sprites and texture system

1 files changed, 43 insertions, 0 deletions

diff --git a/source/Renderer.cpp b/source/Renderer.cpp
new file mode 100644
index 0000000..dec24ea
--- /dev/null
+++ b/source/Renderer.cpp
@@ -0,0 +1,43 @@
+#include "Renderer.hpp"
+
+RenderObject::RenderObject(GpuMesh* mesh, Material* material) {
+	glGenVertexArrays(1, &mVao);
+	glBindVertexArray(mVao);
+
+	auto& vf = mesh->vertFormat;
+	auto& vBindings = mesh->vertBufBindings.bindings;
+	auto& shaderInfo = material->GetShader()->GetInfo();
+
+	// Setup vertex buffers
+	for (auto& elm : vf->elements) {
+		assert(elm.bindingIndex < vBindings.size());
+		auto& buffer = vBindings[elm.bindingIndex];
+
+		int index = material->GetShader()->GetInfo().FindInputLocation(elm.semantic);
+		glBindBuffer(GL_ARRAY_BUFFER, buffer->handle);
+		glEnableVertexAttribArray(index);
+		glVertexAttribPointer(
+			index,
+			Tags::VectorLenOf(elm.type),
+			Tags::FindGLType(elm.type),
+			Tags::IsNormalized(elm.type),
+			vf->vertexSize,
+			(void*)(uintptr_t)elm.offset);
+	}
+
+	// Setup index buffer
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->indexBuf->handle);
+
+	glBindVertexArray(GL_NONE);
+}
+
+RenderObject::~RenderObject() {
+	glDeleteVertexArrays(1, &mVao);
+}
+
+void Renderer::Draw(RenderObject& object) {
+	auto indexType = object.GetMesh()->indexBuf->indexType;
+
+	glBindVertexArray(object.GetGLVao());
+	glDrawElements(GL_TRIANGLES, 0, Tags::FindGLType(indexType), 0);
+}