nuclear@1: #include "opengl.h"
nuclear@1: #include "geom.h"
nuclear@1: 
nuclear@1: #ifdef SINGLE_PRECISION_MATH
nuclear@1: #define ELEM_TYPE		GL_FLOAT
nuclear@1: #else
nuclear@1: #define ELEM_TYPE		GL_DOUBLE
nuclear@1: #endif
nuclear@1: 
nuclear@3: void draw_mesh(unsigned int prim, int num_verts, const Vertex *vbuf, const unsigned int *ibuf, int attr_tang_loc)
nuclear@1: {
nuclear@1: 	glEnableClientState(GL_VERTEX_ARRAY);
nuclear@1: 	glVertexPointer(3, ELEM_TYPE, sizeof *vbuf, &vbuf->pos);
nuclear@1: 
nuclear@1: 	glEnableClientState(GL_NORMAL_ARRAY);
nuclear@1: 	glNormalPointer(ELEM_TYPE, sizeof *vbuf, &vbuf->norm);
nuclear@1: 
nuclear@1: 	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
nuclear@1: 	glTexCoordPointer(2, ELEM_TYPE, sizeof *vbuf, &vbuf->tc);
nuclear@1: 
nuclear@3: 	if(attr_tang_loc >= 0) {
nuclear@3: 		glEnableVertexAttribArrayARB(attr_tang_loc);
nuclear@3: 		glVertexAttribPointerARB(attr_tang_loc, 3, ELEM_TYPE, GL_FALSE, sizeof *vbuf, &vbuf->tang);
nuclear@3: 	}
nuclear@3: 
nuclear@1: 	if(ibuf) {
nuclear@1: 		glDrawElements(prim, num_verts, GL_UNSIGNED_INT, ibuf);
nuclear@1: 	} else {
nuclear@1: 		glDrawArrays(prim, 0, num_verts);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	glDisableClientState(GL_VERTEX_ARRAY);
nuclear@1: 	glDisableClientState(GL_NORMAL_ARRAY);
nuclear@1: 	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
nuclear@3: 
nuclear@3: 	if(attr_tang_loc >= 0) {
nuclear@3: 		glDisableVertexAttribArrayARB(attr_tang_loc);
nuclear@3: 	}
nuclear@1: #if 0
nuclear@1: 	glBegin(GL_QUADS);
nuclear@1: 	for(int i=0; i<count; i++) {
nuclear@1: 		for(int j=0; j<4; j++) {
nuclear@1: 			const Vertex *v = vbuf + ibuf[i * 4 + j];
nuclear@1: 			glNormal3f(v->norm.x, v->norm.y, v->norm.z);
nuclear@1: 			glVertex3f(v->pos.x, v->pos.y, v->pos.z);
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: 	glEnd();
nuclear@1: #endif
nuclear@1: }