X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2Fmoof%2Fopengl.hh;fp=src%2Fmoof%2Fopengl.hh;h=7608cda61508e68cf8f4a435e718915044e1e5be;hp=0000000000000000000000000000000000000000;hb=831f04d4bc19a390415ac0bbac4331c7a65509bc;hpb=299af4f2047e767e5d79501c26444473bda64c64

diff --git a/src/moof/opengl.hh b/src/moof/opengl.hh
new file mode 100644
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--- /dev/null
+++ b/src/moof/opengl.hh
@@ -0,0 +1,118 @@
+
+/*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
+**]  All rights reserved.
+*
+* vi:ts=4 sw=4 tw=75
+*
+* Distributable under the terms and conditions of the 2-clause BSD license;
+* see the file COPYING for a complete text of the license.
+*
+**************************************************************************/
+
+#ifndef _MOOF_OPENGL_HH_
+#define _MOOF_OPENGL_HH_
+
+/**
+ * \file opengl.hh
+ * Defines macros for OpenGL functions that operate on scalars, vectors,
+ * and matrices.
+ */
+
+#include <SDL/SDL_opengl.h>
+
+#include <moof/math.hh>
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+
+// generic function arguments
+
+#define ARGS_P		const GLscalar* p
+#define PASS_P		p
+
+#define ARGS_M		const moof::matrix4& m
+#define PASS_M		m.data()
+
+// ordinal function arguments
+
+#define ARGS_S2		GLscalar a, GLscalar b
+#define PASS_S2		a, b
+#define ARGS_S3		GLscalar a, GLscalar b, GLscalar c
+#define PASS_S3		a, b, c
+#define ARGS_S4		GLscalar a, GLscalar b, GLscalar c, GLscalar d
+#define PASS_S4		a, b, c, d
+
+#define ARGS_P2		const moof::vector2& p
+#define PASS_P2		p.data()
+#define ARGS_P3		const moof::vector3& p
+#define PASS_P3		p.data()
+#define ARGS_P4		const moof::vector4& p
+#define PASS_P4		p.data()
+
+#define ARGS_V2		const moof::vector2& v
+#define PASS_V2		v[0], v[1]
+#define ARGS_V3		const moof::vector3& v
+#define PASS_V3		v[0], v[1], v[2]
+#define ARGS_V4		const moof::vector4& v
+#define PASS_V4		v[0], v[1], v[2], v[3]
+
+
+#if USE_DOUBLE_PRECISION
+
+#define OPENGL_GENERIC_FUNC(R, N, L)									\
+	inline R gl##N(ARGS_##L) { gl##N##d(PASS_##L); }//
+
+#define OPENGL_ORDINAL_FUNC(R, N, K)									\
+	inline R gl##N(ARGS_##S##K) { gl##N##K##d(PASS_##S##K); }			\
+	inline R gl##N(ARGS_##P##K) { gl##N##K##d##v(PASS_##P##K); }//
+
+#else
+
+#define OPENGL_GENERIC_FUNC(R, N, L)									\
+	inline R gl##N(ARGS_##L) { gl##N##f(PASS_##L); }//
+
+#define OPENGL_ORDINAL_FUNC(R, N, K)									\
+	inline R gl##N(ARGS_##S##K) { gl##N##K##f(PASS_##S##K); }			\
+	inline R gl##N(ARGS_##P##K) { gl##N##K##f##v(PASS_##P##K); }//
+
+#endif
+
+
+OPENGL_GENERIC_FUNC(void,	LoadMatrix,	P);
+OPENGL_GENERIC_FUNC(void,	LoadMatrix,	M);
+OPENGL_GENERIC_FUNC(void,	MultMatrix, P);
+OPENGL_GENERIC_FUNC(void,	MultMatrix, M);
+
+OPENGL_GENERIC_FUNC(void,	Scale,		S3);
+OPENGL_GENERIC_FUNC(void,	Scale,		V3);
+OPENGL_GENERIC_FUNC(void,	Rotate,		S4);
+OPENGL_GENERIC_FUNC(void,	Rotate,		V4);
+OPENGL_GENERIC_FUNC(void,	Translate,	S3);
+OPENGL_GENERIC_FUNC(void,	Translate,	V3);
+
+OPENGL_ORDINAL_FUNC(void,	Color,		3);
+OPENGL_ORDINAL_FUNC(void,	Color,		4);
+
+OPENGL_ORDINAL_FUNC(void,	Vertex,		2);
+OPENGL_ORDINAL_FUNC(void,	Vertex,		3);
+OPENGL_ORDINAL_FUNC(void,	Vertex,		4);
+
+OPENGL_ORDINAL_FUNC(void,	TexCoord,	2);
+OPENGL_ORDINAL_FUNC(void,	TexCoord,	3);
+OPENGL_ORDINAL_FUNC(void,	TexCoord,	4);
+
+OPENGL_GENERIC_FUNC(void,	Rect,		S4);
+OPENGL_GENERIC_FUNC(void,	Rect,		V4);
+
+
+#if USE_DOUBLE_PRECISION
+inline void glGetScalar(GLenum a, GLscalar* b) { glGetDoublev(a, b); }
+#else
+inline void glGetScalar(GLenum a, GLscalar* b) { glGetFloatv(a, b); }
+#endif
+
+
+#endif // _MOOF_OPENGL_HH_
+