From ca0c1d3e6f8b5fa4eb2e0a86fcf47b12fb600786 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 27 Sep 2008 17:16:15 +0000
Subject: mission targets, texture unloading, private messages

---
 src/render/textures.cc | 67 ++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 57 insertions(+), 10 deletions(-)

(limited to 'src/render/textures.cc')

diff --git a/src/render/textures.cc b/src/render/textures.cc
index a041c32..b6b7f05 100644
--- a/src/render/textures.cc
+++ b/src/render/textures.cc
@@ -19,14 +19,18 @@ namespace render
 {
 
 std::map<std::string, size_t> Textures::registry;
-size_t Textures::index = 0;
 GLuint Textures::textures[MAXTEXTURES];
 
 void Textures::init()
 {
-	clear();
 	con_print << "^BLoading textures..." << std::endl;
 
+	if (registry.size()) {
+		clear();
+	} else {
+		memset(textures,0, sizeof(textures));
+	}
+
 	// "no texture" bitmap
 	load("textures/common/notex");
 
@@ -51,14 +55,54 @@ void Textures::shutdown()
 	clear();
 }
 
+void Textures::list()
+{
+	for (iterator it = registry.begin(); it != registry.end(); it++) {
+		con_print << "  " << (*it).first << " " << (*it).second << std::endl;
+	}
+	con_print << registry.size() << " loaded textures" << std::endl;
+}
+
 void Textures::clear()
 {
-	if (index)
-		glDeleteTextures(index, textures);
+	for (size_t i=0; i < MAXTEXTURES; i++) {
+		if (textures[i]) {
+			glDeleteTextures(1, &textures[i]);
+		}
+	}
 
 	registry.clear();
 	memset(textures,0, sizeof(textures));
-	index = 0;
+}
+
+void Textures::unload(std::string name)
+{
+	iterator it = registry.find(name);
+	if (it != registry.end()) {
+		con_debug << "  unloading " << (*it).first << std::endl;
+		size_t id = (*it).second;
+		if (textures[id]) {
+			glDeleteTextures(1, &textures[id]);
+		}
+		registry.erase(it);
+		
+	}
+}
+
+void Textures::unload(size_t id)
+{
+	// find in map
+	for (iterator it = registry.begin(); it != registry.end(); it++) {
+		if ((*it).second == id) {
+			con_debug << "  unloading " << (*it).first << std::endl;
+			size_t id = (*it).second;
+			if (textures[id]) {
+				glDeleteTextures(1, &textures[id]);
+			}
+			registry.erase(it);
+			break;
+		}
+	}
 }
 
 size_t Textures::load(std::string name, bool filter)
@@ -68,7 +112,12 @@ size_t Textures::load(std::string name, bool filter)
 	if (it != registry.end())
 		return (*it).second;
 
-	if (index == MAXTEXTURES) {
+	// find first available texture
+	size_t id = 0;
+	while ((id < MAXTEXTURES) && (textures[id])) {
+		id++;
+	}
+	if (id == MAXTEXTURES) {
 		con_error << "Texture limit " << MAXTEXTURES << " exceeded!" << std::endl;
 		registry[name] = 0;
 		return 0;
@@ -105,8 +154,6 @@ size_t Textures::load(std::string name, bool filter)
 		return 0;
 	}
 
-	size_t id = index;
-
 	glGenTextures(1, &textures[id]);
 	glBindTexture(GL_TEXTURE_2D, textures[id]);
 
@@ -123,7 +170,6 @@ size_t Textures::load(std::string name, bool filter)
 
 	// add to the registry
 	registry[name] = id;
-	index++;
 
 	// delete image data
 	delete image;
@@ -157,7 +203,7 @@ size_t Textures::bind(std::string name, bool filter)
 size_t Textures::bind(size_t texture, bool filter)
 {
 	size_t id = texture;
-	if (texture >= index)
+	if (!textures[id])
 		id = 0;
 
 	glBindTexture(GL_TEXTURE_2D, textures[id]);
@@ -175,4 +221,5 @@ void Textures::set_filter(bool filter)
 		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
 	}
 }
+
 }
-- 
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