95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
/************************************************************************
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* Copyright (c) 2005-2006 tok@openlinux.org.uk *
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* *
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* This software is provided as-is, without any express or implied *
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* warranty. In no event will the authors be held liable for any *
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* damages arising from the use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute *
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* it freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must *
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* not claim that you wrote the original software. If you use this *
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* software in a product, an acknowledgment in the product documentation *
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* would be appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must *
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* not be misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source *
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* distribution. *
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************************************************************************/
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#ifndef GL_BASE_H
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#define GL_BASE_H
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#include <SDL_opengl.h>
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namespace OpenGL {
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/*
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template<GLenum target>
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struct TexOps
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{
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static GLuint create();
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static void bind(GLuint id);
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static void destropy(GLuint id);
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};
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*/
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template<typename vertex_type, int entries_per_vertex>
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struct Quad
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{
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vertex_type vertices[4][entries_per_vertex];
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static const GLenum primitiveType = GL_QUADS;
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};
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template<typename normal_type, int entries_per_vertex>
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struct QuadNormals
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{
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normal_type normals[4][entries_per_vertex];
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};
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template<typename color_type, int num_colors>
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struct QuadColors
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{
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color_type colors[4][num_colors];
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};
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template<typename texcoord_type, int num_coords>
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struct QuadTexCoords
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{
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texcoord_type texCoords[4][num_coords];
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GLuint texId;
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};
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template<typename vertex_type, int entries_per_vertex, typename color_type, int num_colors>
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struct ColoredQuad : public Quad<vertex_type, entries_per_vertex>,
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public QuadColors<color_type, num_colors>
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{
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};
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template<typename vertex_type, int entries_per_vertex, typename texcoord_type, int num_coords>
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struct TexturedQuad : public Quad<vertex_type, entries_per_vertex>,
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public QuadTexCoords<texcoord_type, num_coords>
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{
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};
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typedef Quad<GLint, 2> Quad2Int;
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typedef ColoredQuad<GLint, 2, GLfloat, 3> ColoredQuad2Int;
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typedef TexturedQuad<GLint, 2, GLfloat, 2> FontQuad;
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template<class T> class ImmediateRenderer
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{
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public:
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static void draw(const T & t);
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static void begin(GLenum type);
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static void end();
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protected:
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static GLenum currentPrimitiveType;
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static bool insideBegin;
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static void assertCorrectPrimitive(GLenum newType);
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};
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// ugly as hell, but seems to work
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#define Renderer ImmediateRenderer
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}
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#endif
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