X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2F3dengfx%2Fsrc%2F3dengfx%2Fgfxprog.cpp;fp=src%2F3dengfx%2Fsrc%2F3dengfx%2Fgfxprog.cpp;h=38326a4fe822d4e2d914b0684d0d924d8b2a4675;hb=6e23259dbabaeb1711a2a5ca25b9cb421f693759;hp=0000000000000000000000000000000000000000;hpb=fe068fa879814784c45e0cb2e65dac489e8f5594;p=summerhack

diff --git a/src/3dengfx/src/3dengfx/gfxprog.cpp b/src/3dengfx/src/3dengfx/gfxprog.cpp
new file mode 100644
index 0000000..38326a4
--- /dev/null
+++ b/src/3dengfx/src/3dengfx/gfxprog.cpp
@@ -0,0 +1,191 @@
+/*
+This file is part of the 3dengfx, realtime visualization system.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+3dengfx 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.
+
+3dengfx 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 3dengfx; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "3dengfx_config.h"
+
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#include "gfxprog.hpp"
+#include "3denginefx.hpp"
+#include "opengl.h"
+#include "common/err_msg.h"
+
+using namespace std;
+using namespace glext;
+
+GfxProg::GfxProg(Shader vertex, Shader pixel) {
+	linked = false;
+	update_handler = 0;
+
+	prog = 0;
+	if(engfx_state::sys_caps.prog.shader_obj) {
+		prog = glCreateProgramObject();
+
+		if(vertex) add_shader(vertex);
+		if(pixel) add_shader(pixel);
+	}
+}
+
+GfxProg::~GfxProg() {
+	if(engfx_state::sys_caps.prog.shader_obj) {
+		list<Shader>::iterator iter = sdr_list.begin();
+		while(iter != sdr_list.end()) {
+			glDetachObject(prog, *iter++);
+		}
+		glDeleteObject(prog);
+	}
+}
+
+void GfxProg::add_shader(Shader sdr) {
+	if(engfx_state::sys_caps.prog.shader_obj) {
+		glAttachObject(prog, sdr);
+		sdr_list.push_back(sdr);
+	}
+}
+
+void GfxProg::link() {
+	int linked, log_size;
+	
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return;
+	}
+	
+	glLinkProgram(prog);
+	glGetObjectParameteriv(prog, GL_OBJECT_LINK_STATUS_ARB, &linked);
+	glGetObjectParameteriv(prog, GL_OBJECT_INFO_LOG_LENGTH_ARB, &log_size);
+
+	char *err_str = 0;
+	if(log_size) {
+		err_str = new char[log_size + 1];
+		glGetInfoLog(prog, log_size, 0, err_str);
+	}
+
+	if(linked) {
+		if(err_str) {
+			info("linked: %s", err_str);
+			delete [] err_str;
+		} else {
+			info("program linked successfully");
+		}		
+	} else {
+		if(err_str) {
+			error("linking failed: %s", err_str);
+			delete [] err_str;
+		} else {
+			error("program linking failed");
+		}
+	}
+
+	this->linked = (bool)linked;
+}
+
+bool GfxProg::is_linked() const {
+	return linked;
+}
+
+unsigned int GfxProg::get_id() const {
+	if(!linked) {
+		const_cast<GfxProg*>(this)->link();
+	}
+	return linked ? prog : 0;
+}
+
+bool GfxProg::set_parameter(const char *pname, int val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniform1i(loc, val);
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+bool GfxProg::set_parameter(const char *pname, scalar_t val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniform1f(loc, val);
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+bool GfxProg::set_parameter(const char *pname, const Vector2 &val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniform2f(loc, val.x, val.y);
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+bool GfxProg::set_parameter(const char *pname, const Vector3 &val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniform3f(loc, val.x, val.y, val.z);
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+bool GfxProg::set_parameter(const char *pname, const Vector4 &val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniform4f(loc, val.x, val.y, val.z, val.w);
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+bool GfxProg::set_parameter(const char *pname, const Matrix4x4 &val) {
+	if(!engfx_state::sys_caps.prog.shader_obj) {
+		return false;
+	}
+	glUseProgramObject(prog);
+	int loc = glGetUniformLocation(prog, pname);
+	if(loc != -1) {
+		glUniformMatrix4fv(loc, 1, 1, val.opengl_matrix());
+	}
+	glUseProgramObject(0);
+	return loc == -1 ? false : true;
+}
+
+void GfxProg::set_update_handler(void (*func)(GfxProg*)) {
+	update_handler = func;
+}