NzImage now handles mipmaps

Added NzRenderer::SetClearColor(const Color&)
Added describe comment for pixel formats
Fixed NzPixelFormat conversion for RGBA4 and RGB5A1 types
Fixed NzRenderer::Clear prototype
Renamed NzLock to NzLockGuard
ResourceLoader's loaders are now tested from newest to oldest

src/Nazara/Renderer/GLSLShader.cpp

@@ -123,7 +123,7 @@ bool NzGLSLShader::Create()
 	glBindAttribLocation(m_program, attribIndex[nzElementUsage_Diffuse], "Diffuse");
 	glBindAttribLocation(m_program, attribIndex[nzElementUsage_Tangent], "Tangent");
 
-	NzString uniformName = "TexCoord0";
+	NzString uniformName = "TexCoordi";
 	for (unsigned int i = 0; i < 8; ++i)
 	{
 		uniformName[8] = '0'+i;

src/Nazara/Renderer/RenderWindow.cpp

@@ -137,6 +137,7 @@ bool NzRenderWindow::OnCreate()
 {
 	m_parameters.doubleBuffered = true;
     m_parameters.window = GetHandle();
+
     m_context = new NzContext;
     if (!m_context->Create(m_parameters))
     {

src/Nazara/Renderer/Renderer.cpp

@@ -4,6 +4,7 @@
 
 #include <Nazara/Renderer/OpenGL.hpp> // Pour éviter une redéfinition de WIN32_LEAN_AND_MEAN
 #include <Nazara/Renderer/Renderer.hpp>
+#include <Nazara/Core/Color.hpp>
 #include <Nazara/Core/Error.hpp>
 #include <Nazara/Renderer/BufferImpl.hpp>
 #include <Nazara/Renderer/Config.hpp>
@@ -53,7 +54,7 @@ NzRenderer::~NzRenderer()
 	s_instance = nullptr;
 }
 
-void NzRenderer::Clear(nzRendererClear flags)
+void NzRenderer::Clear(unsigned long flags)
 {
 	#ifdef NAZARA_DEBUG
 	if (NzContext::GetCurrent() == nullptr)
@@ -205,6 +206,19 @@ bool NzRenderer::Initialize()
 		return false;
 }
 
+void NzRenderer::SetClearColor(const NzColor& color)
+{
+	#ifdef NAZARA_DEBUG
+	if (NzContext::GetCurrent() == nullptr)
+	{
+		NazaraError("No active context");
+		return;
+	}
+	#endif
+
+	glClearColor(color.r/255.f, color.g/255.f, color.b/255.f, color.a/255.f);
+}
+
 void NzRenderer::SetClearColor(nzUInt8 r, nzUInt8 g, nzUInt8 b, nzUInt8 a)
 {
 	#ifdef NAZARA_DEBUG

src/Nazara/Renderer/Win32/ContextImpl.cpp

@@ -7,7 +7,7 @@
 #include <Nazara/Renderer/OpenGL.hpp>
 #include <Nazara/Renderer/Win32/ContextImpl.hpp>
 #include <Nazara/Core/Error.hpp>
-#include <Nazara/Core/Lock.hpp>
+#include <Nazara/Core/LockGuard.hpp>
 #include <Nazara/Core/Mutex.hpp>
 #include <Nazara/Renderer/Context.hpp>
 #include <cstring>
@@ -180,7 +180,7 @@ bool NzContextImpl::Create(NzContextParameters& parameters)
 		{
 			// wglShareLists n'est pas thread-safe (source: SFML)
 			static NzMutex mutex;
-			NzLock lock(mutex);
+			NzLockGuard lock(mutex);
 
 			if (!wglShareLists(shareContext, m_context))
 				NazaraWarning("Failed to share the context: " + NzGetLastSystemError());