private static int setupProgram(String vShaderPath, String fShaderPath) {
int program = glCreateProgramObjectARB();
int vShader = 0;
int fShader = 0;
if (program != 0) {
vShader = createVertShader(vShaderPath);
fShader = createFragShader(fShaderPath);
}
if (vShader != 0 || fShader != 0) {
if (vShader != 0) {
glAttachObjectARB(program, vShader);
}
if (fShader != 0) {
glAttachObjectARB(program, fShader);
}
if (entityAttrib >= 0) {
glBindAttribLocationARB(program, entityAttrib, "mc_Entity");
}
glLinkProgramARB(program);
glValidateProgramARB(program);
printLogInfo(program);
} else if (program != 0) {
glDeleteObjectARB(program);
program = 0;
}
return program;
}
public static void destroy() {
for (int i = 0; i < ProgramCount; ++i) {
if (programs[i] != 0) {
glDeleteObjectARB(programs[i]);
programs[i] = 0;
}
}
}
private static int createVertShader(String filename) {
int vertShader = glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB);
if (vertShader == 0) {
return 0;
}
String vertexCode = "";
String line;
BufferedReader reader;
try {
reader =
new BufferedReader(new InputStreamReader((Shaders.class).getResourceAsStream(filename)));
} catch (Exception e) {
try {
reader = new BufferedReader(new FileReader(new File(filename)));
} catch (Exception e2) {
System.out.println("Couldn't open " + filename + "!");
glDeleteObjectARB(vertShader);
return 0;
}
}
try {
while ((line = reader.readLine()) != null) {
vertexCode += line + "\n";
if (line.matches("attribute [_a-zA-Z0-9]+ mc_Entity.*")) {
entityAttrib = 10;
}
}
} catch (Exception e) {
System.out.println("Couldn't read " + filename + "!");
glDeleteObjectARB(vertShader);
return 0;
}
glShaderSourceARB(vertShader, vertexCode);
glCompileShaderARB(vertShader);
printLogInfo(vertShader);
return vertShader;
}
private static int createFragShader(String filename) {
int fragShader = glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
if (fragShader == 0) {
return 0;
}
String fragCode = "";
String line;
BufferedReader reader;
try {
reader =
new BufferedReader(new InputStreamReader((Shaders.class).getResourceAsStream(filename)));
} catch (Exception e) {
try {
reader = new BufferedReader(new FileReader(new File(filename)));
} catch (Exception e2) {
System.out.println("Couldn't open " + filename + "!");
glDeleteObjectARB(fragShader);
return 0;
}
}
try {
while ((line = reader.readLine()) != null) {
fragCode += line + "\n";
if (colorAttachments < 5 && line.matches("uniform [ _a-zA-Z0-9]+ gaux1;.*")) {
colorAttachments = 5;
} else if (colorAttachments < 6 && line.matches("uniform [ _a-zA-Z0-9]+ gaux2;.*")) {
colorAttachments = 6;
} else if (colorAttachments < 7 && line.matches("uniform [ _a-zA-Z0-9]+ gaux3;.*")) {
colorAttachments = 7;
} else if (colorAttachments < 8 && line.matches("uniform [ _a-zA-Z0-9]+ shadow;.*")) {
shadowPassInterval = 1;
colorAttachments = 8;
} else if (line.matches("/\\* SHADOWRES:[0-9]+ \\*/.*")) {
String[] parts = line.split("(:| )", 4);
System.out.println("Shadow map resolution: " + parts[2]);
shadowMapWidth = shadowMapHeight = Integer.parseInt(parts[2]);
} else if (line.matches("/\\* SHADOWFOV:[0-9\\.]+ \\*/.*")) {
String[] parts = line.split("(:| )", 4);
System.out.println("Shadow map field of view: " + parts[2]);
shadowMapFOV = Float.parseFloat(parts[2]);
shadowMapIsOrtho = false;
} else if (line.matches("/\\* SHADOWHPL:[0-9\\.]+ \\*/.*")) {
String[] parts = line.split("(:| )", 4);
System.out.println("Shadow map half-plane: " + parts[2]);
shadowMapHalfPlane = Float.parseFloat(parts[2]);
shadowMapIsOrtho = true;
}
}
} catch (Exception e) {
System.out.println("Couldn't read " + filename + "!");
glDeleteObjectARB(fragShader);
return 0;
}
glShaderSourceARB(fragShader, fragCode);
glCompileShaderARB(fragShader);
printLogInfo(fragShader);
return fragShader;
}