1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/opengl.cc	Sun Apr 27 16:02:47 2014 +0300
     1.3 @@ -0,0 +1,63 @@
     1.4 +#include "opengl.h"
     1.5 +#include <vmath/vmath.h>
     1.6 +
     1.7 +
     1.8 +
     1.9 +void load_matrix(const Matrix4x4 &m)
    1.10 +{
    1.11 +#ifdef SINGLE_PRECISION_MATH
    1.12 +	if(glLoadTransposeMatrixfARB) {
    1.13 +		glLoadTransposeMatrixfARB((float*)&m);
    1.14 +	} else {
    1.15 +		Matrix4x4 tmat = m.transposed();
    1.16 +		glLoadMatrixf((float*)&tmat);
    1.17 +	}
    1.18 +#else
    1.19 +	if(glLoadTransposeMatrixdARB) {
    1.20 +		glLoadTransposeMatrixdARB((double*)&m);
    1.21 +	} else {
    1.22 +		Matrix4x4 tmat = m.transposed();
    1.23 +		glLoadMatrixd((double*)&tmat);
    1.24 +	}
    1.25 +#endif
    1.26 +}
    1.27 +
    1.28 +void mult_matrix(const Matrix4x4 &m)
    1.29 +{
    1.30 +#ifdef SINGLE_PRECISION_MATH
    1.31 +	if(glMultTransposeMatrixfARB) {
    1.32 +		glMultTransposeMatrixfARB((float*)&m);
    1.33 +	} else {
    1.34 +		Matrix4x4 tmat = m.transposed();
    1.35 +		glMultMatrixf((float*)&tmat);
    1.36 +	}
    1.37 +#else
    1.38 +	if(glMultTransposeMatrixdARB) {
    1.39 +		glMultTransposeMatrixdARB((double*)&m);
    1.40 +	} else {
    1.41 +		Matrix4x4 tmat = m.transposed();
    1.42 +		glMultMatrixd((double*)&tmat);
    1.43 +	}
    1.44 +#endif
    1.45 +}
    1.46 +
    1.47 +const char *strglerr(int err)
    1.48 +{
    1.49 +	static const char *errnames[] = {
    1.50 +		"GL_INVALID_ENUM",
    1.51 +		"GL_INVALID_VALUE",
    1.52 +		"GL_INVALID_OPERATION",
    1.53 +		"GL_STACK_OVERFLOW",
    1.54 +		"GL_STACK_UNDERFLOW",
    1.55 +		"GL_OUT_OF_MEMORY",
    1.56 +		"GL_INVALID_FRAMEBUFFER_OPERATION"
    1.57 +	};
    1.58 +
    1.59 +	if(!err) {
    1.60 +		return "GL_NO_ERROR";
    1.61 +	}
    1.62 +	if(err < GL_INVALID_ENUM || err > GL_OUT_OF_MEMORY) {
    1.63 +		return "<invalid gl error>";
    1.64 +	}
    1.65 +	return errnames[err - GL_INVALID_ENUM];
    1.66 +}