Examples with FloatBuffer java.nio.FloatBuffer used on opensource projects

Example 1 with FloatBuffer

use of java.nio.FloatBuffer in project android_frameworks_base by ParanoidAndroid.

the class GLLogWrapper method doArrayElement.

private void doArrayElement(StringBuilder builder, boolean enabled, String name, PointerInfo pointer, int index) {
    if (!enabled) {
        return;
    }
    builder.append(" ");
    builder.append(name + ":{");
    if (pointer == null || pointer.mTempByteBuffer == null) {
        builder.append("undefined }");
        return;
    }
    if (pointer.mStride < 0) {
        builder.append("invalid stride");
        return;
    }
    int stride = pointer.getStride();
    ByteBuffer byteBuffer = pointer.mTempByteBuffer;
    int size = pointer.mSize;
    int type = pointer.mType;
    int sizeofType = pointer.sizeof(type);
    int byteOffset = stride * index;
    for (int i = 0; i < size; i++) {
        if (i > 0) {
            builder.append(", ");
        }
        switch(type) {
            case GL_BYTE:
                {
                    byte d = byteBuffer.get(byteOffset);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_UNSIGNED_BYTE:
                {
                    byte d = byteBuffer.get(byteOffset);
                    builder.append(Integer.toString(0xff & d));
                }
                break;
            case GL_SHORT:
                {
                    ShortBuffer shortBuffer = byteBuffer.asShortBuffer();
                    short d = shortBuffer.get(byteOffset / 2);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_FIXED:
                {
                    IntBuffer intBuffer = byteBuffer.asIntBuffer();
                    int d = intBuffer.get(byteOffset / 4);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_FLOAT:
                {
                    FloatBuffer intBuffer = byteBuffer.asFloatBuffer();
                    float d = intBuffer.get(byteOffset / 4);
                    builder.append(Float.toString(d));
                }
                break;
            default:
                builder.append("?");
                break;
        }
        byteOffset += sizeofType;
    }
    builder.append("}");
}

Example 2 with FloatBuffer

use of java.nio.FloatBuffer in project gl-react-native by ProjectSeptemberInc.

the class GLCanvas method parseAsFloatArray.

private FloatBuffer parseAsFloatArray(ReadableArray array) {
    int size = array.size();
    FloatBuffer buf = ByteBuffer.allocateDirect(size * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
    for (int i = 0; i < size; i++) buf.put((float) array.getDouble(i));
    buf.position(0);
    return buf;
}

Example 3 with FloatBuffer

use of java.nio.FloatBuffer in project gl-react-native by ProjectSeptemberInc.

the class GLCanvas method recSyncData.

private GLRenderData recSyncData(GLData data, HashMap<Uri, GLImage> images) {
    Map<Uri, GLImage> prevImages = this.images;
    GLShader shader = getShader(data.shader);
    if (shader == null || !shader.ensureCompile())
        return null;
    Map<String, Integer> uniformsInteger = new HashMap<>();
    Map<String, Float> uniformsFloat = new HashMap<>();
    Map<String, IntBuffer> uniformsIntBuffer = new HashMap<>();
    Map<String, FloatBuffer> uniformsFloatBuffer = new HashMap<>();
    Map<String, GLTexture> textures = new HashMap<>();
    List<GLRenderData> contextChildren = new ArrayList<>();
    List<GLRenderData> children = new ArrayList<>();
    for (GLData child : data.contextChildren) {
        GLRenderData node = recSyncData(child, images);
        if (node == null)
            return null;
        contextChildren.add(node);
    }
    for (GLData child : data.children) {
        GLRenderData node = recSyncData(child, images);
        if (node == null)
            return null;
        children.add(node);
    }
    Map<String, Integer> uniformTypes = shader.getUniformTypes();
    List<String> uniformNames = shader.getUniformNames();
    Map<String, Integer> uniformSizes = shader.getUniformSizes();
    int units = 0;
    ReadableMapKeySetIterator iterator = data.uniforms.keySetIterator();
    while (iterator.hasNextKey()) {
        String uniformName = iterator.nextKey();
        int type = uniformTypes.get(uniformName);
        int size = uniformSizes.get(uniformName);
        ReadableMap dataUniforms = data.uniforms;
        if (type == GL_SAMPLER_2D || type == GL_SAMPLER_CUBE) {
            uniformsInteger.put(uniformName, units++);
            if (dataUniforms.isNull(uniformName)) {
                GLTexture emptyTexture = new GLTexture(this);
                emptyTexture.setPixelsEmpty();
                textures.put(uniformName, emptyTexture);
            } else {
                ReadableMap value = null;
                try {
                    value = dataUniforms.getMap(uniformName);
                } catch (Exception e) {
                    shader.runtimeException("texture uniform '" + uniformName + "': you cannot directly give require('./img.png') " + "to gl-react, use resolveAssetSource(require('./img.png')) instead.");
                    return null;
                }
                String t = value.getString("type");
                if (t.equals("content")) {
                    int id = value.getInt("id");
                    if (id >= contentTextures.size()) {
                        resizeUniformContentTextures(id + 1);
                    }
                    textures.put(uniformName, contentTextures.get(id));
                } else if (t.equals("fbo")) {
                    int id = value.getInt("id");
                    GLFBO fbo = getFBO(id);
                    textures.put(uniformName, fbo.color.get(0));
                } else if (t.equals("uri")) {
                    final Uri src = srcResource(value);
                    if (src == null) {
                        shader.runtimeException("texture uniform '" + uniformName + "': Invalid uri format '" + value + "'");
                    }
                    GLImage image = images.get(src);
                    if (image == null) {
                        image = prevImages.get(src);
                        if (image != null)
                            images.put(src, image);
                    }
                    if (image == null) {
                        image = new GLImage(this, executorSupplier.forDecode(), new Runnable() {

                            public void run() {
                                onImageLoad(src);
                            }
                        });
                        image.setSrc(src);
                        images.put(src, image);
                    }
                    textures.put(uniformName, image.getTexture());
                } else {
                    shader.runtimeException("texture uniform '" + uniformName + "': Unexpected type '" + type + "'");
                }
            }
        } else {
            if (size == 1) {
                switch(type) {
                    case GL_INT:
                        uniformsInteger.put(uniformName, dataUniforms.getInt(uniformName));
                        break;
                    case GL_BOOL:
                        uniformsInteger.put(uniformName, dataUniforms.getBoolean(uniformName) ? 1 : 0);
                        break;
                    case GL_FLOAT:
                        uniformsFloat.put(uniformName, (float) dataUniforms.getDouble(uniformName));
                        break;
                    case GL_FLOAT_VEC2:
                    case GL_FLOAT_VEC3:
                    case GL_FLOAT_VEC4:
                    case GL_FLOAT_MAT2:
                    case GL_FLOAT_MAT3:
                    case GL_FLOAT_MAT4:
                        ReadableArray arr = dataUniforms.getArray(uniformName);
                        if (arraySizeForType(type) != arr.size()) {
                            shader.runtimeException("uniform '" + uniformName + "': Invalid array size: " + arr.size() + ". Expected: " + arraySizeForType(type));
                        }
                        uniformsFloatBuffer.put(uniformName, parseAsFloatArray(arr));
                        break;
                    case GL_INT_VEC2:
                    case GL_INT_VEC3:
                    case GL_INT_VEC4:
                    case GL_BOOL_VEC2:
                    case GL_BOOL_VEC3:
                    case GL_BOOL_VEC4:
                        ReadableArray arr2 = dataUniforms.getArray(uniformName);
                        if (arraySizeForType(type) != arr2.size()) {
                            shader.runtimeException("uniform '" + uniformName + "': Invalid array size: " + arr2.size() + ". Expected: " + arraySizeForType(type));
                        }
                        uniformsIntBuffer.put(uniformName, parseAsIntArray(arr2));
                        break;
                    default:
                        shader.runtimeException("uniform '" + uniformName + "': type not supported: " + type);
                }
            } else {
                ReadableArray array = dataUniforms.getArray(uniformName);
                if (size != array.size()) {
                    shader.runtimeException("uniform '" + uniformName + "': Invalid array size: " + array.size() + ". Expected: " + size);
                }
                for (int i = 0; i < size; i++) {
                    String name = uniformName + "[" + i + "]";
                    switch(type) {
                        case GL_INT:
                            uniformsInteger.put(name, array.getInt(i));
                            break;
                        case GL_BOOL:
                            uniformsInteger.put(name, array.getBoolean(i) ? 1 : 0);
                            break;
                        case GL_FLOAT:
                            uniformsFloat.put(name, (float) array.getDouble(i));
                            break;
                        case GL_FLOAT_VEC2:
                        case GL_FLOAT_VEC3:
                        case GL_FLOAT_VEC4:
                        case GL_FLOAT_MAT2:
                        case GL_FLOAT_MAT3:
                        case GL_FLOAT_MAT4:
                            ReadableArray arr = array.getArray(i);
                            if (arraySizeForType(type) != arr.size()) {
                                shader.runtimeException("uniform '" + name + "': Invalid array size: " + arr.size() + ". Expected: " + arraySizeForType(type));
                            }
                            uniformsFloatBuffer.put(name, parseAsFloatArray(arr));
                            break;
                        case GL_INT_VEC2:
                        case GL_INT_VEC3:
                        case GL_INT_VEC4:
                        case GL_BOOL_VEC2:
                        case GL_BOOL_VEC3:
                        case GL_BOOL_VEC4:
                            ReadableArray arr2 = array.getArray(i);
                            if (arraySizeForType(type) != arr2.size()) {
                                shader.runtimeException("uniform '" + name + "': Invalid array size: " + arr2.size() + ". Expected: " + arraySizeForType(type));
                            }
                            uniformsIntBuffer.put(name, parseAsIntArray(arr2));
                            break;
                        default:
                            shader.runtimeException("uniform '" + name + "': type not supported: " + type);
                    }
                }
            }
        }
    }
    int[] maxTextureUnits = new int[1];
    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, maxTextureUnits, 0);
    if (units > maxTextureUnits[0]) {
        shader.runtimeException("Maximum number of texture reach. got " + units + " >= max " + maxTextureUnits);
    }
    for (String uniformName : uniformNames) {
        int size = uniformSizes.get(uniformName);
        if (size == 1) {
            if (!uniformsFloat.containsKey(uniformName) && !uniformsInteger.containsKey(uniformName) && !uniformsFloatBuffer.containsKey(uniformName) && !uniformsIntBuffer.containsKey(uniformName)) {
                shader.runtimeException("All defined uniforms must be provided. Missing '" + uniformName + "'");
            }
        } else {
            for (int i = 0; i < size; i++) {
                String name = uniformName + "[" + i + "]";
                if (!uniformsFloat.containsKey(name) && !uniformsInteger.containsKey(name) && !uniformsFloatBuffer.containsKey(name) && !uniformsIntBuffer.containsKey(name)) {
                    shader.runtimeException("All defined uniforms must be provided. Missing '" + name + "'");
                }
            }
        }
    }
    return new GLRenderData(shader, uniformsInteger, uniformsFloat, uniformsIntBuffer, uniformsFloatBuffer, textures, (int) (data.width * data.pixelRatio), (int) (data.height * data.pixelRatio), data.fboId, contextChildren, children);
}

Example 4 with FloatBuffer

use of java.nio.FloatBuffer in project gl-react-native by ProjectSeptemberInc.

the class GLShader method makeProgram.

private void makeProgram() throws GLShaderCompilationFailed {
    int vertex = compileShader(vert, GL_VERTEX_SHADER);
    if (vertex == -1)
        return;
    int fragment = compileShader(frag, GL_FRAGMENT_SHADER);
    if (fragment == -1)
        return;
    program = glCreateProgram();
    glAttachShader(program, vertex);
    glAttachShader(program, fragment);
    glLinkProgram(program);
    int[] linkSuccess = new int[1];
    glGetProgramiv(program, GL_LINK_STATUS, linkSuccess, 0);
    if (linkSuccess[0] == GL_FALSE) {
        runtimeException(glGetProgramInfoLog(program));
    }
    glUseProgram(program);
    validate();
    computeMeta();
    pointerLoc = glGetAttribLocation(program, "position");
    buffer = new int[1];
    glGenBuffers(1, buffer, 0);
    glBindBuffer(GL_ARRAY_BUFFER, buffer[0]);
    float[] buf = { -1.0f, -1.0f, -1.0f, 4.0f, 4.0f, -1.0f };
    FloatBuffer bufferData = ByteBuffer.allocateDirect(buf.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
    bufferData.put(buf).position(0);
    glBufferData(GL_ARRAY_BUFFER, buf.length * 4, bufferData, GL_STATIC_DRAW);
}

Example 5 with FloatBuffer

use of java.nio.FloatBuffer in project Rajawali by Rajawali.

the class Object3D method setAtlasTile.

/**
	 * Maps the (x,y) coordinates of <code>tileName</code> in <code>atlas</code>
	 * to the TextureCoordinates of this BaseObject3D
	 *
	 * @param tileName
	 * @param atlas
	 */
public void setAtlasTile(String tileName, TextureAtlas atlas) {
    Tile tile = atlas.getTileNamed(tileName);
    FloatBuffer fb = this.getGeometry().getTextureCoords();
    for (int i = 0; i < fb.capacity(); i++) {
        double uvIn = fb.get(i);
        double uvOut;
        if (i % 2 == 0)
            uvOut = (uvIn * (tile.width / atlas.getWidth())) + tile.x / atlas.getWidth();
        else
            uvOut = (uvIn * (tile.height / atlas.getHeight())) + tile.y / atlas.getHeight();
        fb.put(i, (float) uvOut);
    }
    mGeometry.changeBufferData(mGeometry.getTexCoordBufferInfo(), fb, 0);
}