X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fmodel.cpp;h=ab6e72f18d6735866682b9aef236bc7ff9959f55;hb=28fda9f7f55a9e806ade3f49f4e94f0242ec2c3c;hp=4ee621afbb614605acd7dd3a02674721e6d3bc3c;hpb=d18be10ef3f0a7b61c6f5c4c4096ca2b776c75b3;p=blank.git

diff --git a/src/model.cpp b/src/model.cpp
index 4ee621a..ab6e72f 100644
--- a/src/model.cpp
+++ b/src/model.cpp
@@ -1,26 +1,237 @@
 #include "model.hpp"
 
-#include <glm/gtc/matrix_transform.hpp>
-#include <glm/gtx/euler_angles.hpp>
-#include <glm/gtx/transform.hpp>
+#include <iostream>
 
 
 namespace blank {
 
 Model::Model()
-: position(0, 0, 0)
-, pitch(0)
-, yaw(0) {
-
+: vertices()
+, colors()
+, normals()
+, indices()
+, va(0)
+, handle{}
+, dirty(false) {
+	glGenVertexArrays(1, &va);
+	glGenBuffers(ATTRIB_COUNT, handle);
 }
 
 Model::~Model() {
+	glDeleteBuffers(ATTRIB_COUNT, handle);
+	glDeleteVertexArrays(1, &va);
+}
+
+Model::Model(Model &&other)
+: vertices(std::move(other.vertices))
+, colors(std::move(other.colors))
+, normals(std::move(other.normals))
+, indices(std::move(other.indices))
+, va(other.va)
+, dirty(other.dirty) {
+	other.va = 0;
+	for (int i = 0; i < ATTRIB_COUNT; ++i) {
+		handle[i] = other.handle[i];
+		other.handle[i] = 0;
+	}
+}
+
+Model &Model::operator =(Model &&other) {
+	std::swap(vertices, other.vertices);
+	std::swap(colors, other.colors);
+	std::swap(normals, other.normals);
+	std::swap(indices, other.indices);
+	std::swap(va, other.va);
+	for (int i = 0; i < ATTRIB_COUNT; ++i) {
+		std::swap(handle[i], other.handle[i]);
+	}
+	dirty = other.dirty;
+	return *this;
+}
+
+
+void Model::Clear() {
+	vertices.clear();
+	colors.clear();
+	normals.clear();
+	indices.clear();
+	Invalidate();
+}
+
+void Model::Reserve(int v, int i) {
+	vertices.reserve(v);
+	colors.reserve(v);
+	normals.reserve(v);
+	indices.reserve(i);
+}
+
+
+void Model::CheckUpdate() {
+	if (dirty) {
+		glBindVertexArray(va);
+		Update();
+	}
+}
+
+void Model::Update() {
+	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
+	glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(glm::vec3), vertices.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_VERTEX);
+	glVertexAttribPointer(
+		ATTRIB_VERTEX, // location (for shader)
+		3,             // size
+		GL_FLOAT,      // type
+		GL_FALSE,      // normalized
+		0,             // stride
+		nullptr        // offset
+	);
+
+#ifndef NDEBUG
+	if (colors.size() < vertices.size()) {
+		std::cerr << "Model: not enough colors!" << std::endl;
+		colors.resize(vertices.size(), { 1, 0, 1 });
+	}
+#endif
+	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
+	glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), colors.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_COLOR);
+	glVertexAttribPointer(
+		ATTRIB_COLOR,  // location (for shader)
+		3,             // size
+		GL_FLOAT,      // type
+		GL_FALSE,      // normalized
+		0,             // stride
+		nullptr        // offset
+	);
+
+#ifndef NDEBUG
+	if (normals.size() < vertices.size()) {
+		std::cerr << "Model: not enough normals!" << std::endl;
+		normals.resize(vertices.size(), { 0, 1, 0 });
+	}
+#endif
+	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_NORMAL]);
+	glBufferData(GL_ARRAY_BUFFER, normals.size() * sizeof(glm::vec3), normals.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_NORMAL);
+	glVertexAttribPointer(
+		ATTRIB_NORMAL, // location (for shader)
+		3,             // size
+		GL_FLOAT,      // type
+		GL_FALSE,      // normalized
+		0,             // stride
+		nullptr        // offset
+	);
+
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(Index), indices.data(), GL_STATIC_DRAW);
+
+	dirty = false;
+}
+
 
+void Model::Draw() {
+	glBindVertexArray(va);
+
+	if (dirty) {
+		Update();
+	}
+
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glDrawElements(
+		GL_TRIANGLES,      // how
+		indices.size(),    // count
+		GL_UNSIGNED_INT, // type
+		nullptr            // offset
+	);
+}
+
+
+OutlineModel::OutlineModel()
+: vertices()
+, colors()
+, indices()
+, va(0)
+, handle{}
+, dirty(false) {
+	glGenVertexArrays(1, &va);
+	glGenBuffers(ATTRIB_COUNT, handle);
 }
 
+OutlineModel::~OutlineModel() {
+	glDeleteBuffers(ATTRIB_COUNT, handle);
+	glDeleteVertexArrays(1, &va);
+}
+
+
+void OutlineModel::Clear() {
+	vertices.clear();
+	colors.clear();
+	indices.clear();
+	Invalidate();
+}
+
+void OutlineModel::Reserve(int v, int i) {
+	vertices.reserve(v);
+	colors.reserve(v);
+	indices.reserve(i);
+}
+
+
+void OutlineModel::Update() {
+	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
+	glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(glm::vec3), vertices.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_VERTEX);
+	glVertexAttribPointer(
+		ATTRIB_VERTEX, // location (for shader)
+		3,             // size
+		GL_FLOAT,      // type
+		GL_FALSE,      // normalized
+		0,             // stride
+		nullptr        // offset
+	);
+
+#ifndef NDEBUG
+	if (colors.size() < vertices.size()) {
+		std::cerr << "OutlineModel: not enough colors!" << std::endl;
+		colors.resize(vertices.size(), { 1, 0, 1 });
+	}
+#endif
+	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
+	glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), colors.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_COLOR);
+	glVertexAttribPointer(
+		ATTRIB_COLOR,  // location (for shader)
+		3,             // size
+		GL_FLOAT,      // type
+		GL_FALSE,      // normalized
+		0,             // stride
+		nullptr        // offset
+	);
+
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(Index), indices.data(), GL_STATIC_DRAW);
+
+	dirty = false;
+}
+
+
+void OutlineModel::Draw() {
+	glBindVertexArray(va);
+
+	if (dirty) {
+		Update();
+	}
+
+	glEnable(GL_LINE_SMOOTH);
+	glLineWidth(2.0f);
 
-glm::mat4 Model::Transform() const {
-	return glm::translate(position) * glm::eulerAngleYX(yaw, pitch);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glDrawElements(
+		GL_LINES,          // how
+		indices.size(),    // count
+		GL_UNSIGNED_SHORT, // type
+		nullptr            // offset
+	);
 }
 
 }