/** Writes GL version info to the log. */
public static void logVersionInfo() {
Log.i(TAG, "vendor : " + GLES20.glGetString(GLES20.GL_VENDOR));
Log.i(TAG, "renderer: " + GLES20.glGetString(GLES20.GL_RENDERER));
Log.i(TAG, "version : " + GLES20.glGetString(GLES20.GL_VERSION));
if (false) {
int[] values = new int[1];
GLES30.glGetIntegerv(GLES30.GL_MAJOR_VERSION, values, 0);
int majorVersion = values[0];
GLES30.glGetIntegerv(GLES30.GL_MINOR_VERSION, values, 0);
int minorVersion = values[0];
if (GLES30.glGetError() == GLES30.GL_NO_ERROR) {
Log.i(TAG, "iversion: " + majorVersion + "." + minorVersion);
}
}
}
private void flush() {
DrawEnv d = mDraw;
mVertBuf.flip();
GLES30.glBufferSubData(GL_ARRAY_BUFFER, 0, mVertBuf.remaining(), mVertBuf);
mVertBuf.clear();
if (mActiveIndexer == null) {
GLES30.glDrawArrays(mActiveMode, 0, mActivePos);
} else {
mIndBuf.flip();
GLES30.glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, mIndBuf.remaining(), mIndBuf);
GLES30.glDrawElements(mActiveMode, mActiveIndexer.count(), GL_UNSIGNED_INT, 0);
mIndBuf.clear();
}
mActivePos = 0;
}
private static boolean compileShader(final GLShader _shader) {
_shader.id[0] = GLES30.glCreateShader(_shader.type);
GLES30.glShaderSource(_shader.id[0], _shader.source[0]);
GLES30.glCompileShader(_shader.id[0]);
final int[] response = new int[] {0};
GLES30.glGetShaderiv(_shader.id[0], GLES30.GL_COMPILE_STATUS, response, 0);
if (response[0] == GLES30.GL_FALSE) {
System.out.println(
"Error compiling shader: "
+ _shader.file
+ "\n"
+ GLES30.glGetShaderInfoLog(_shader.id[0]));
return false;
}
return true;
}
public static boolean buildProgram(final GLProgram _program) {
_program.id[0] = GLES30.glCreateProgram();
if (_program.id[0] < 1) {
System.out.println("Failed to create program..");
return false;
}
for (final GLShader shader : _program.shaders) {
// Attach only successfully compiled shaders
if (compileShader(shader) == true) {
GLES30.glAttachShader(_program.id[0], shader.id[0]);
}
}
final List<String> swivel = _program.swivel;
final int size = swivel.size();
for (int i = 0; i < size; i++) {
GLES30.glBindAttribLocation(_program.id[0], _program.inAttributes[i], swivel.get(i));
}
GLES30.glLinkProgram(_program.id[0]);
_program.inMVPMatrix = GLES30.glGetUniformLocation(_program.id[0], "inMVPMatrix");
// Once all of the shaders have been compiled
// and linked, we can then detach the shader sources
// and delete the shaders from memory.
for (final GLShader shader : _program.shaders) {
GLES30.glDetachShader(_program.id[0], shader.id[0]);
GLES30.glDeleteShader(shader.id[0]);
}
_program.shaders.clear();
final int[] response = new int[] {0};
GLES30.glGetProgramiv(_program.id[0], GLES30.GL_LINK_STATUS, response, 0);
if (response[0] == GLES30.GL_FALSE) {
System.out.println("Error linking program: " + GLES30.glGetProgramInfoLog(_program.id[0]));
return false;
}
return true;
}
public Floor() {
// make a floor
ByteBuffer bbFloorVertices = ByteBuffer.allocateDirect(FLOOR_COORDS.length * 4);
bbFloorVertices.order(ByteOrder.nativeOrder());
floorVertices = bbFloorVertices.asFloatBuffer();
floorVertices.put(FLOOR_COORDS);
floorVertices.position(0);
ByteBuffer bbFloorNormals = ByteBuffer.allocateDirect(FLOOR_NORMALS.length * 4);
bbFloorNormals.order(ByteOrder.nativeOrder());
floorNormals = bbFloorNormals.asFloatBuffer();
floorNormals.put(FLOOR_NORMALS);
floorNormals.position(0);
ByteBuffer bbFloorColors = ByteBuffer.allocateDirect(FLOOR_COLORS.length * 4);
bbFloorColors.order(ByteOrder.nativeOrder());
floorColors = bbFloorColors.asFloatBuffer();
floorColors.put(FLOOR_COLORS);
floorColors.position(0);
// now setup the shaders and program object
int vertexShader = myStereoRenderer.LoadShader(GLES30.GL_VERTEX_SHADER, light_vertex);
int gridShader = myStereoRenderer.LoadShader(GLES30.GL_FRAGMENT_SHADER, grid_fragment);
int programObject;
int[] linked = new int[1];
// Create the program object
programObject = GLES30.glCreateProgram();
if (programObject == 0) {
Log.e(TAG, "So some kind of error, but what?");
return;
}
GLES30.glAttachShader(programObject, vertexShader);
GLES30.glAttachShader(programObject, gridShader);
// Link the program
GLES30.glLinkProgram(programObject);
// Check the link status
GLES30.glGetProgramiv(programObject, GLES30.GL_LINK_STATUS, linked, 0);
if (linked[0] == 0) {
Log.e(TAG, "Error linking program:");
Log.e(TAG, GLES30.glGetProgramInfoLog(programObject));
GLES30.glDeleteProgram(programObject);
return;
}
// Store the program object
mProgramObject = programObject;
}
public void end() {
if (mActiveWriter == null) {
return;
}
if (mActivePos > 0) {
flush();
}
if (mActiveIndexer != null) {
GLES30.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
mActiveIndexer = null;
}
mActiveWriter.mVao.unbind(mDraw);
mActiveWriter.mProgram.unbind(mDraw);
DrawUtil.checkErr();
}
public static int getSupportedMaxPictureSize() {
int[] array = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, array, 0);
try {
if (array[0] == 0) {
GLES11.glGetIntegerv(GLES11.GL_MAX_TEXTURE_SIZE, array, 0);
if (array[0] == 0) {
GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, array, 0);
if (array[0] == 0) {
GLES30.glGetIntegerv(GLES30.GL_MAX_TEXTURE_SIZE, array, 0);
}
}
}
} catch (NoClassDefFoundError e) {
// Ignore the exception
}
return array[0] != 0 ? array[0] : 2048;
}
public static void deleteProgram(final GLProgram _program) {
// During the build process a programs
// shaders list has already been detached
// and destroyed.
GLES30.glDeleteProgram(_program.id[0]);
}
/**
* Draw the floor.
*
* <p>This feeds in data for the floor into the shader. Note that this doesn't feed in data about
* position of the light, so if we rewrite our code to draw the floor first, the lighting might
* look strange.
*/
public void drawFloor(
float[] modelViewProjection,
float[] modelFloor,
float[] modelView,
float[] lightPosInEyeSpace) {
GLES30.glUseProgram(mProgramObject);
floorModelParam = GLES30.glGetUniformLocation(mProgramObject, "u_Model");
floorModelViewParam = GLES30.glGetUniformLocation(mProgramObject, "u_MVMatrix");
floorModelViewProjectionParam = GLES30.glGetUniformLocation(mProgramObject, "u_MVP");
floorLightPosParam = GLES30.glGetUniformLocation(mProgramObject, "u_LightPos");
floorPositionParam = GLES30.glGetAttribLocation(mProgramObject, "a_Position");
floorNormalParam = GLES30.glGetAttribLocation(mProgramObject, "a_Normal");
floorColorParam = GLES30.glGetAttribLocation(mProgramObject, "a_Color");
GLES30.glEnableVertexAttribArray(floorPositionParam);
GLES30.glEnableVertexAttribArray(floorNormalParam);
GLES30.glEnableVertexAttribArray(floorColorParam);
// Set ModelView, MVP, position, normals, and color.
GLES30.glUniform3fv(floorLightPosParam, 1, lightPosInEyeSpace, 0);
GLES30.glUniformMatrix4fv(floorModelParam, 1, false, modelFloor, 0);
GLES30.glUniformMatrix4fv(floorModelViewParam, 1, false, modelView, 0);
GLES30.glUniformMatrix4fv(floorModelViewProjectionParam, 1, false, modelViewProjection, 0);
GLES30.glVertexAttribPointer(
floorPositionParam, COORDS_PER_VERTEX, GLES30.GL_FLOAT, false, 0, floorVertices);
GLES30.glVertexAttribPointer(floorNormalParam, 3, GLES30.GL_FLOAT, false, 0, floorNormals);
GLES30.glVertexAttribPointer(floorColorParam, 4, GLES30.GL_FLOAT, false, 0, floorColors);
GLES30.glDrawArrays(GLES30.GL_TRIANGLES, 0, 6);
}