Package com.banuba.sdk.internal.gl

Class GlUtils

  • public final class GlUtils
extends java.lang.Object

    • Method Detail

      • copyMatrix

        public static void copyMatrix​(@NonNull
                              float[] src,
                              @NonNull
                              float[] dest)

      • getIdentityMatrix

        public static float[] getIdentityMatrix()

      • getNewIdentityMatrix

        public static float[] getNewIdentityMatrix()

      • initFloatBuffer

        public static java.nio.FloatBuffer initFloatBuffer​(float[] inFloatArray)

      • initColorArray

        public static void initColorArray​(float[] colorArray,
                                  int iColor)

      • detectOpenGLES20

        public static boolean detectOpenGLES20​(android.content.Context context)

      • loadShader

        public static int loadShader​(int shaderType,
                             java.lang.String source)
        Compiles the provided shader source.
        Returns:
        A handle to the shader, or 0 on failure.

      • loadProgram

        public static int loadProgram​(@NonNull
                              java.lang.String vertShaderSrc,
                              @NonNull
                              java.lang.String fragShaderSrc)

      • loadTextureFromFile

        public static int loadTextureFromFile​(@NonNull
                                      java.io.File file)

      • loadTextureFromBitmap

        public static int loadTextureFromBitmap​(@NonNull
                                        android.graphics.Bitmap bitmap)

      • loadTextureFromRawRes

        public static int loadTextureFromRawRes​(@RawRes
                                        int resID,
                                        android.content.Context context)

      • createTextureFromDrawable

        public static int createTextureFromDrawable​(android.graphics.drawable.Drawable drawable,
                                            int width,
                                            int height)

      • loadTextureLuminance

        public static int loadTextureLuminance​(@NonNull
                                       java.nio.ByteBuffer buffer,
                                       int width,
                                       int height,
                                       int format)

      • createExternalTextureObject

        public static int createExternalTextureObject()

      • setupBlend

        public static void setupBlend()

      • printGlInfo

        public static void printGlInfo()

      • setupVertexBuffer

        public static int setupVertexBuffer​(float[] vertexArray)

      • setupVertexTextureBuffers

        public static int[] setupVertexTextureBuffers​(float[] vertexArray,
                                              float[] textureArray)

      • multiplyMM

        public static void multiplyMM​(float[] result,
                              float[] lhs,
                              float[] rhs)

      • multiplyMM4

        public static void multiplyMM4​(float[] result,
                               float[] mat1,
                               float[] mat2,
                               float[] mat3,
                               float[] mat4)

      • checkGlError

        public static void checkGlError​(java.lang.String op)
        Checks to see if a GLES error has been raised.

      • checkGlErrorNoException

        public static void checkGlErrorNoException​(java.lang.String op)

      • setupSampler

        public static void setupSampler​(int samplerIndex,
                                int location,
                                int texture,
                                boolean external)

      • createProgram

        public static int createProgram​(java.lang.String vertexSource,
                                java.lang.String fragmentSource)
        Creates a new program from the supplied vertex and fragment shaders.
        Returns:
        A handle to the program, or 0 on failure.

      • checkLocation

        public static void checkLocation​(int location,
                                 java.lang.String label)
        Checks to see if the location we obtained is valid. GLES returns -1 if a label could not be found, but does not set the GL error.

        Throws a RuntimeException if the location is invalid.

      • createImageTexture

        public static int createImageTexture​(java.nio.ByteBuffer data,
                                     int width,
                                     int height,
                                     int format)
        Creates a texture from raw data.
        Parameters:
        data - Image data, in a "direct" ByteBuffer.
        width - Texture width, in pixels (not bytes).
        height - Texture height, in pixels.
        format - Image data format (use constant appropriate for glTexImage2D(), e.g. GL_RGBA).
        Returns:
        Handle to texture.

      • createFloatBuffer

        public static java.nio.FloatBuffer createFloatBuffer​(float[] coords)
        Allocates a direct float buffer, and populates it with the float array data.

      • logVersionInfo

        public static void logVersionInfo()
        Writes GL version info to the log.

      • calculateCameraMatrix

        public static void calculateCameraMatrix​(float[] matrix,
                                         float angle,
                                         int flip)