X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fmodel.cpp;h=d26968a0e6282e51cdcb9dda431eb90a751d4c33;hb=1b022dd17364c9e3344afd86572f2ead14973cde;hp=bbfc97f4fcfb121f8646feec9d59680213958189;hpb=3baab6cca7423d55ea08288d96570b02380b1fe9;p=blank.git

diff --git a/src/model.cpp b/src/model.cpp
index bbfc97f..d26968a 100644
--- a/src/model.cpp
+++ b/src/model.cpp
@@ -1,37 +1,47 @@
 #include "model.hpp"
 
+#include <iostream>
+
 
 namespace blank {
 
-Model::Model(
-	std::vector<glm::vec3> &&vtx,
-	std::vector<glm::vec3> &&col,
-	std::vector<glm::vec3> &&norm
-)
-: vertices(vtx)
-, colors(col)
-, normals(norm)
-, handle{} {
+Model::Model()
+:  va(0)
+, handle{}
+, count(0) {
+	glGenVertexArrays(1, &va);
 	glGenBuffers(ATTRIB_COUNT, handle);
-
-	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
-	glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(glm::vec3), vertices.data(), GL_STATIC_DRAW);
-
-	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
-	glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), colors.data(), GL_STATIC_DRAW);
-
-	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_NORMAL]);
-	glBufferData(GL_ARRAY_BUFFER, normals.size() * sizeof(glm::vec3), normals.data(), GL_STATIC_DRAW);
 }
 
 Model::~Model() {
 	glDeleteBuffers(ATTRIB_COUNT, handle);
+	glDeleteVertexArrays(1, &va);
 }
 
+Model::Model(Model &&other)
+: va(other.va)
+, count(other.count) {
+	other.va = 0;
+	for (int i = 0; i < ATTRIB_COUNT; ++i) {
+		handle[i] = other.handle[i];
+		other.handle[i] = 0;
+	}
+}
 
-void Model::Draw() {
-	glEnableVertexAttribArray(ATTRIB_VERTEX);
+Model &Model::operator =(Model &&other) {
+	std::swap(va, other.va);
+	for (int i = 0; i < ATTRIB_COUNT; ++i) {
+		std::swap(handle[i], other.handle[i]);
+	}
+	count = other.count;
+	return *this;
+}
+
+void Model::Update(const Buffer &buf) {
+	glBindVertexArray(va);
 	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
+	glBufferData(GL_ARRAY_BUFFER, buf.vertices.size() * sizeof(glm::vec3), buf.vertices.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_VERTEX);
 	glVertexAttribPointer(
 		ATTRIB_VERTEX, // location (for shader)
 		3,             // size
@@ -41,8 +51,14 @@ void Model::Draw() {
 		nullptr        // offset
 	);
 
-	glEnableVertexAttribArray(ATTRIB_COLOR);
+#ifndef NDEBUG
+	if (buf.colors.size() < buf.vertices.size()) {
+		std::cerr << "Model: not enough colors!" << std::endl;
+	}
+#endif
 	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
+	glBufferData(GL_ARRAY_BUFFER, buf.colors.size() * sizeof(glm::vec3), buf.colors.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_COLOR);
 	glVertexAttribPointer(
 		ATTRIB_COLOR,  // location (for shader)
 		3,             // size
@@ -52,8 +68,14 @@ void Model::Draw() {
 		nullptr        // offset
 	);
 
-	glEnableVertexAttribArray(ATTRIB_NORMAL);
+#ifndef NDEBUG
+	if (buf.normals.size() < buf.vertices.size()) {
+		std::cerr << "Model: not enough normals!" << std::endl;
+	}
+#endif
 	glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_NORMAL]);
+	glBufferData(GL_ARRAY_BUFFER, buf.normals.size() * sizeof(glm::vec3), buf.normals.data(), GL_STATIC_DRAW);
+	glEnableVertexAttribArray(ATTRIB_NORMAL);
 	glVertexAttribPointer(
 		ATTRIB_NORMAL, // location (for shader)
 		3,             // size
@@ -63,15 +85,110 @@ void Model::Draw() {
 		nullptr        // offset
 	);
 
-	glDrawArrays(
-		GL_TRIANGLES,   // how
-		0,              // start
-		vertices.size() // len
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, buf.indices.size() * sizeof(Index), buf.indices.data(), GL_STATIC_DRAW);
+	count = buf.indices.size();
+}
+
+
+void Model::Draw() const {
+	glBindVertexArray(va);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glDrawElements(
+		GL_TRIANGLES,    // how
+		count,           // 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);
+}
 
-	glDisableVertexAttribArray(ATTRIB_NORMAL);
-	glDisableVertexAttribArray(ATTRIB_COLOR);
-	glDisableVertexAttribArray(ATTRIB_VERTEX);
+
+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);
+
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, handle[ATTRIB_INDEX]);
+	glDrawElements(
+		GL_LINES,          // how
+		indices.size(),    // count
+		GL_UNSIGNED_SHORT, // type
+		nullptr            // offset
+	);
 }
 
 }