The GtkRadiant sources as originally released under the GPL license.

include/irender.h

@@ -0,0 +1,175 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_IRENDER_H)
+#define INCLUDED_IRENDER_H
+
+#include "generic/constant.h"
+
+
+// Rendering states to sort by.
+// Higher bits have the most effect - slowest state changes should be highest.
+
+const unsigned int RENDER_DEFAULT = 0;
+const unsigned int RENDER_LINESTIPPLE = 1 << 0; // glEnable(GL_LINE_STIPPLE)
+const unsigned int RENDER_POLYGONSTIPPLE = 1 << 1; // glEnable(GL_POLYGON_STIPPLE)
+const unsigned int RENDER_ALPHATEST = 1 << 2; // glEnable(GL_ALPHA_TEST)
+const unsigned int RENDER_DEPTHTEST = 1 << 3; // glEnable(GL_DEPTH_TEST)
+const unsigned int RENDER_DEPTHWRITE = 1 << 4; // glDepthMask(GL_TRUE)
+const unsigned int RENDER_COLOURWRITE = 1 << 5; // glColorMask(GL_TRUE; GL_TRUE; GL_TRUE; GL_TRUE)
+const unsigned int RENDER_CULLFACE = 1 << 6; // glglEnable(GL_CULL_FACE)
+const unsigned int RENDER_SCALED = 1 << 7; // glEnable(GL_NORMALIZE)
+const unsigned int RENDER_SMOOTH = 1 << 8; // glShadeModel
+const unsigned int RENDER_LIGHTING = 1 << 9; // glEnable(GL_LIGHTING)
+const unsigned int RENDER_BLEND = 1 << 10; // glEnable(GL_BLEND)
+const unsigned int RENDER_OFFSETLINE = 1 << 11; // glEnable(GL_POLYGON_OFFSET_LINE)
+const unsigned int RENDER_FILL = 1 << 12; // glPolygonMode
+const unsigned int RENDER_COLOUR = 1 << 13; // glEnableClientState(GL_COLOR_ARRAY)
+const unsigned int RENDER_TEXTURE = 1 << 14; // glEnable(GL_TEXTURE_2D)
+const unsigned int RENDER_BUMP = 1 << 15;
+const unsigned int RENDER_PROGRAM = 1 << 16;
+const unsigned int RENDER_SCREEN = 1 << 17;
+const unsigned int RENDER_OVERRIDE = 1 << 18;
+typedef unsigned int RenderStateFlags;
+
+
+class AABB;
+class Matrix4;
+
+template<typename Element> class BasicVector3;
+typedef BasicVector3<float> Vector3;
+
+class Shader;
+
+class RendererLight
+{
+public:
+  virtual Shader* getShader() const = 0;
+  virtual const AABB& aabb() const = 0;
+  virtual bool testAABB(const AABB& other) const = 0;
+  virtual const Matrix4& rotation() const = 0;
+  virtual const Vector3& offset() const = 0;
+  virtual const Vector3& colour() const = 0;
+  virtual bool isProjected() const = 0;
+  virtual const Matrix4& projection() const = 0;
+};
+
+class LightCullable
+{
+public:
+  virtual bool testLight(const RendererLight& light) const = 0;
+  virtual void insertLight(const RendererLight& light)
+  {
+  }
+  virtual void clearLights()
+  {
+  }
+};
+
+template<typename FirstArgument>
+class Callback1;
+
+class Renderable;
+typedef Callback1<const Renderable&> RenderableCallback;
+
+typedef Callback1<const RendererLight&> RendererLightCallback;
+
+class LightList
+{
+public:
+  virtual void evaluateLights() const = 0;
+  virtual void lightsChanged() const = 0;
+  virtual void forEachLight(const RendererLightCallback& callback) const = 0;
+};
+
+const int c_attr_TexCoord0 = 1;
+const int c_attr_Tangent = 3;
+const int c_attr_Binormal = 4;
+
+class OpenGLRenderable
+{
+public:
+  virtual void render(RenderStateFlags state) const = 0;
+};
+
+class Matrix4;
+struct qtexture_t;
+class ModuleObserver;
+
+#include "math/vector.h"
+
+class Shader
+{
+public:
+  virtual void addRenderable(const OpenGLRenderable& renderable, const Matrix4& modelview, const LightList* lights = 0) = 0;
+  virtual void incrementUsed() = 0;
+  virtual void decrementUsed() = 0;
+  virtual void attach(ModuleObserver& observer) = 0;
+  virtual void detach(ModuleObserver& observer) = 0;
+  virtual qtexture_t& getTexture() const = 0;
+  virtual unsigned int getFlags() const = 0;
+};
+
+class ShaderCache
+{
+public:
+  INTEGER_CONSTANT(Version, 1);
+  STRING_CONSTANT(Name, "renderstate");
+
+  virtual Shader* capture(const char* name) = 0;
+  virtual void release(const char* name) = 0;
+  /*! Render all Shader objects. */
+  virtual void render(RenderStateFlags globalstate, const Matrix4& modelview, const Matrix4& projection, const Vector3& viewer = Vector3(0, 0, 0)) = 0;
+
+  virtual void realise() = 0;
+  virtual void unrealise() = 0;
+
+  virtual bool lightingSupported() const = 0;
+  virtual bool useShaderLanguage() const = 0;
+
+  virtual const LightList& attach(LightCullable& cullable) = 0;
+  virtual void detach(LightCullable& cullable) = 0;
+  virtual void changed(LightCullable& cullable) = 0;
+  virtual void attach(RendererLight& light) = 0;
+  virtual void detach(RendererLight& light) = 0;
+  virtual void changed(RendererLight& light) = 0;
+
+  virtual void attachRenderable(const Renderable& renderable) = 0;
+  virtual void detachRenderable(const Renderable& renderable) = 0;
+  virtual void forEachRenderable(const RenderableCallback& callback) const = 0;
+};
+
+#include "modulesystem.h"
+
+template<typename Type>
+class GlobalModule;
+typedef GlobalModule<ShaderCache> GlobalShaderCacheModule;
+
+template<typename Type>
+class GlobalModuleRef;
+typedef GlobalModuleRef<ShaderCache> GlobalShaderCacheModuleRef;
+
+inline ShaderCache& GlobalShaderCache()
+{
+  return GlobalShaderCacheModule::getTable();
+}
+
+#endif