Java Code Examples for javax.microedition.khronos.opengles.GL10#glColor4f()

@Override
public void onDrawFrame(GL10 gl) {
    gl.glClearColor(1.f, 0.f, 0.f, 1.f);
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT);

    gl.glLoadIdentity();
    gl.glTranslatef(0.f, 0.f, -50.f);

    long time = SystemClock.uptimeMillis() % 4000L;
    float angle = 0.090f * ((int) time);
    gl.glRotatef(angle, 0.f, 0.f, 1.f);

    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glColor4f(1.f, 1.f, 1.f, 1.f);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer);
    gl.glDrawElements(GL10.GL_TRIANGLES, indices.length, GL10.GL_UNSIGNED_SHORT, indexBuffer);

    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
}
 

private static void drawWaveForm(
        GL10 gl, int width, int height,
        FloatBuffer vertices, int n, int vposition, float yrange, FloatColor color) {

    gl.glPushMatrix();

    // viewport
    gl.glViewport(0, (height / 2) * (1 - vposition), width, (height / 2));

    // X: [0:1], Y: [-1:+1] (scaled)
    gl.glOrthof(0.0f, 1.0f, -yrange, yrange, -1.0f, 1.0f);

    gl.glColor4f(color.red, color.green, color.blue, color.alpha);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glVertexPointer(2, GL10.GL_FLOAT, (2 * Float.SIZE / 8), vertices);
    gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, n);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);

    gl.glPopMatrix();
}
 

private static void drawFFT(
        GL10 gl, int width, int height,
        FloatBuffer vertices, int n,
        int vposition, float yrange, FloatColor color) {

    gl.glPushMatrix();

    // viewport
    gl.glViewport(0, (height / 2) * (1 - vposition), width, (height / 2));

    // X: [0:1], Y: [0:1]
    gl.glOrthof(0.0f, 1.0f, 0.0f, yrange, -1.0f, 1.0f);

    gl.glColor4f(color.red, color.green, color.blue, color.alpha);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glVertexPointer(2, GL10.GL_FLOAT, (2 * Float.SIZE / 8), vertices);
    gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, n);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);

    gl.glPopMatrix();
}
 

private static void drawWaveForm(
        GL10 gl, int width, int height,
        FloatBuffer vertices, int n, float ymin, float ymax, FloatColor color) {

    gl.glPushMatrix();

    // viewport
    gl.glViewport(0, 0, width, height);

    // X: [0:1], Y: [ymin:ymax]
    gl.glOrthof(0.0f, 1.0f, ymin, ymax, -1.0f, 1.0f);

    gl.glColor4f(color.red, color.green, color.blue, color.alpha);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glVertexPointer(2, GL10.GL_FLOAT, (2 * Float.SIZE / 8), vertices);
    gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, n);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);

    gl.glPopMatrix();
}
 

public void render(GL10 gl) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    if (colorIndex>4) {
        gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
    }
    else {
        gl.glDisableClientState(GL10.GL_COLOR_ARRAY);
    }

    gl.glVertexPointer(2, GL10.GL_FLOAT, 0, vertexBuffer);
    if (colorIndex>4) {
        gl.glColorPointer(4, GL10.GL_FLOAT, 0, colorBuffer);
    }
    else if (colorIndex==4) {
        // single color
        gl.glColor4f(
                colorComponents[0], colorComponents[1], colorComponents[2], colorComponents[3]);
    }

    gl.glDrawArrays(glMode, 0, numVertices);
}
 

/**render methods*/

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer)
{
	this.calculateCoords(gl);
	
	List<PLITexture> textures = this.getTextures();
	int textureId = (textures.size() > 0 ? textures.get(0).getTextureId(gl) : 0);
	if(textureId == 0 || mVertexsBuffer == null || mTextureCoordsBuffer == null)
		return;
	
	gl.glEnable(GL10.GL_TEXTURE_2D);
	
	PLIView view = renderer.getInternalView();
	gl.glColor4f(1.0f, 1.0f, 1.0f, (view != null && view.isValidForTransition()) || this.getTouchStatus() == PLSceneElementTouchStatus.PLSceneElementTouchStatusOut ? this.getAlpha() : mOverAlpha);
	
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexsBuffer);
	gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, mTextureCoordsBuffer);
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
	
	gl.glEnable(GL10.GL_CULL_FACE);
	gl.glCullFace(GL10.GL_FRONT);
	gl.glShadeModel(GL10.GL_SMOOTH);
	
	gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
	
	gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);
	
	gl.glDisable(GL10.GL_TEXTURE_2D);
	gl.glDisable(GL10.GL_BLEND);
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
}
 

/**
 * alpha methods
 */

protected void beginAlpha(GL10 gl) {
    gl.glEnable(GL10.GL_BLEND);
    gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
    gl.glColor4f(1.0f, 1.0f, 1.0f, this.getAlpha());
}
 

/**
 * render methods
 */

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer) {
    this.calculateCoords(gl);

    List<PLITexture> textures = this.getTextures();
    int textureId = (textures.size() > 0 ? textures.get(0).getTextureId(gl) : 0);
    if (textureId == 0 || mVertexsBuffer == null || mTextureCoordsBuffer == null)
        return;

    gl.glEnable(GL10.GL_TEXTURE_2D);

    PLIView view = renderer.getInternalView();
    gl.glColor4f(1.0f, 1.0f, 1.0f, (view != null && view.isValidForTransition()) || this.getTouchStatus() == PLSceneElementTouchStatus.PLSceneElementTouchStatusOut ? this.getAlpha() : mOverAlpha);

    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexsBuffer);
    gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, mTextureCoordsBuffer);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

    gl.glEnable(GL10.GL_CULL_FACE);
    gl.glCullFace(GL10.GL_FRONT);
    gl.glShadeModel(GL10.GL_SMOOTH);

    gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);

    gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);

    gl.glDisable(GL10.GL_TEXTURE_2D);
    gl.glDisable(GL10.GL_BLEND);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
}
 

/**alpha methods*/

protected void beginAlpha(GL10 gl)
{
	gl.glEnable(GL10.GL_BLEND);
	gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
	gl.glColor4f(1.0f, 1.0f, 1.0f, this.getAlpha());
}
 

public void onDrawFrame(GL10 gl) {
     if (mCallback != null) {
         mCallback.animate();
     }

    /*
     * Usually, the first thing one might want to do is to clear
     * the screen. The most efficient way of doing this is to use
     * glClear(). However we must make sure to set the scissor
     * correctly first. The scissor is always specified in window
     * coordinates:
     */

    gl.glClearColor(0.5f,0.5f,0.5f,1);
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    /*
     * Now we're ready to draw some 3D object
     */

    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();
    gl.glTranslatef(0, 0, -3.0f);
    gl.glScalef(0.5f, 0.5f, 0.5f);
    gl.glRotatef(mAngle,        0, 1, 0);
    gl.glRotatef(mAngle*0.25f,  1, 0, 0);

    gl.glColor4f(0.7f, 0.7f, 0.7f, 1.0f);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
    gl.glEnable(GL10.GL_CULL_FACE);
    gl.glShadeModel(GL10.GL_SMOOTH);
    gl.glEnable(GL10.GL_DEPTH_TEST);

    mWorld.draw(gl);
}
 

/**
 * This function draws our square on screen.
 * @param gl
 */
public void draw(GL10 gl) {
  //set a color other then white, which is blue/purple
  gl.glColor4f(0.5f, 0.5f, 1.0f, 1.0f); // 0x8080FFFF
	// Counter-clockwise winding.
	gl.glFrontFace(GL10.GL_CCW); // OpenGL docs
	// Enable face culling.
	gl.glEnable(GL10.GL_CULL_FACE); // OpenGL docs
	// What faces to remove with the face culling.
	gl.glCullFace(GL10.GL_BACK); // OpenGL docs

	// Enabled the vertices buffer for writing and to be used during
	// rendering.
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);// OpenGL docs.
	// Specifies the location and data format of an array of vertex
	// coordinates to use when rendering.
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, // OpenGL docs
                                vertexBuffer);

	gl.glDrawElements(GL10.GL_TRIANGLES, indices.length,// OpenGL docs
			  GL10.GL_UNSIGNED_SHORT, indexBuffer);

	// Disable the vertices buffer.
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); // OpenGL docs
	// Disable face culling.
	gl.glDisable(GL10.GL_CULL_FACE); // OpenGL docs
}
 

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);

    // configure model space
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();
    GLU.gluLookAt(gl, 0, 0, 10f, 0, 0, 0, 0, 1, 0f);
    gl.glColor4f(1f, 0f, 0f, 1f);
}
 

/**
 * This function draws our square on screen.
 * @param gl
 */
public void draw(GL10 gl) {
  //set a color other then white, which is blue/purple
  gl.glColor4f(0.5f, 0.5f, 1.0f, 1.0f); // 0x8080FFFF
	// Counter-clockwise winding.
	gl.glFrontFace(GL10.GL_CCW); // OpenGL docs
	// Enable face culling.
	gl.glEnable(GL10.GL_CULL_FACE); // OpenGL docs
	// What faces to remove with the face culling.
	gl.glCullFace(GL10.GL_BACK); // OpenGL docs

	// Enabled the vertices buffer for writing and to be used during
	// rendering.
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);// OpenGL docs.
	// Specifies the location and data format of an array of vertex
	// coordinates to use when rendering.
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, // OpenGL docs
                                vertexBuffer);

	gl.glDrawElements(GL10.GL_TRIANGLES, indices.length,// OpenGL docs
			  GL10.GL_UNSIGNED_SHORT, indexBuffer);

	// Disable the vertices buffer.
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); // OpenGL docs
	// Disable face culling.
	gl.glDisable(GL10.GL_CULL_FACE); // OpenGL docs
}
 

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);

    // configure model space
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();
    GLU.gluLookAt(gl, 0, 0, 10f, 0, 0, 0, 0, 1, 0f);
    gl.glColor4f(1f, 0f, 0f, 1f);
}
 

@Override
public void render(GL10 gl, int layer) {
    if (alpha[layer] > 0.0001f) {
        float x = 0;
        float y = 0;
        float width = getRoom().getViewWidth();
        float height = getRoom().getViewHeight();

        x += getRoom().getCameraLeftEdge() * getRoom().getGridUnitX();
        y += getRoom().getCameraBottomEdge() * getRoom().getGridUnitY();

        vertices[0] = x;             // Bottom Left X
        vertices[1] = y;             // Bottom Left Y
        vertices[2] = vertices[0];   // Top Left X (Same as Bottom X)
        vertices[3] = y + height;    // Top Left Y
        vertices[4] = x + width;     // Bottom Right X
        vertices[5] = vertices[1];   // Bottom Right Y (Same as Left Y)
        vertices[6] = vertices[4];   // Top Right X (Same as Bottom X)
        vertices[7] = vertices[3];   // Top Right Y (Same as Left Y)

        vertexBuffer.clear();
        vertexBuffer.put(vertices);

        vertexBuffer.position(0);
        textureBuffer.position(0);
        indexBuffer.position(0);

        gl.glBindTexture(GL11.GL_TEXTURE_2D, 0);
        gl.glColor4f(red[layer] * alpha[layer], green[layer] * alpha[layer], blue[layer] * alpha[layer], alpha[layer]);

        // Point to our vertex and texture buffers
        gl.glVertexPointer(2, GL10.GL_FLOAT, 0, vertexBuffer);
        gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, textureBuffer);

        // Draw the vertices as triangles
        gl.glDrawElements(GL10.GL_TRIANGLES, INDICES.length, GL10.GL_UNSIGNED_SHORT, indexBuffer);
    }
}
 

protected void draw(GL10 gl) {
	long curtime = SystemClock.uptimeMillis();

	this.prepareBuffers(sides, interval[1]);
	gl.glColor4f(96/255.0f, 246/255.0f, 255/255.0f, 1.0f);
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mFVertexBuffer);
	gl.glDrawElements(GL10.GL_TRIANGLES, this.numOfIndecies,
			GL10.GL_UNSIGNED_SHORT, mIndexBuffer);
}
 

protected void endAlpha(GL10 gl)
{
	gl.glDisable(GL10.GL_BLEND);
	gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
}
 

protected void endAlpha(GL10 gl) {
    gl.glDisable(GL10.GL_BLEND);
    gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
}
 

@Override
public void onDrawFrame(GL10 gl) {
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();

    gl.glTranslatef(0, 0, -3.0f);
    gl.glRotatef(gamma, 0, 1f, 0);
    gl.glRotatef(alpha, 1f, 1f, 0);
    gl.glRotatef(beta, 0, 0, 1f);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);

    if (dirty) {
        setUpArray();
        dirty = false;
    }

    gl.glLineWidth(1.0f);
    for (int k = 0; k < functions.size(); k++) {
        int colors[] = Graph2DView.colors[k];
        gl.glColor4f((float) colors[0] / 255, (float) colors[1] / 255, (float) colors[2], 1);
        for (int i = 0; i <= 30; i++) {
            vertexBuffer[k][i][1].position(0);
            gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer[k][i][0]);
            gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, 31);

            vertexBuffer[k][i][1].position(0);
            gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer[k][i][1]);
            gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, 31);
        }
    }

    gl.glLineWidth(3.0f);
    gl.glColor4f(1, 1, 1, 1);
    axisBuffer.position(0);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, axisBuffer);
    gl.glDrawArrays(GL10.GL_LINE_STRIP, 0, axis.length);

    gl.glRotatef(gamma * 2.0f, 0, 0, 1);
    gl.glTranslatef(0.5f, 0.5f, 0.5f);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
    long newSeconds = System.currentTimeMillis();

    if (!userRotate) {
        gamma += .04f * (newSeconds - milliseconds);
    }
    milliseconds = newSeconds;

}
 

/**
 * Render the quads in this system.
 *
 * @param gl OpenGL ES 1 object.
 * @param layer layer to render.
 */
public void render(GL10 gl, int layer) {
	boolean obFound = false;
	int gID;
	int numIndices = 0;    // The number of indices for all objects

	if (graphic == null) {
		gID = 0;
	} else {
		gID = graphic.id;
	}

	for (int i = 0; i < numQuads; i++) {
		Transformation t = quads.get(i).getTransformation();
		GraphicAreaTransformation g = quads.get(i).getGraphicAreaTransformation();

		if (t.getLayer() == layer && onScreen(t, getRoom()) && Transform.getRealVisibility(t)) {
			if (!obFound) {
				vertexBuffer.clear();
				textureBuffer.clear();

				vertexBuffer.position(0);
				textureBuffer.position(0);
				indexBuffer[layer].position(0);

				obFound = true;
			}

			vertexBuffer.put(getVertices(t));
			textureBuffer.put(getVertices(g));
			numIndices += INDICES;
		}
	}

	if (obFound) {
		if (numIndices != lastIndex[layer]) {
			if (numIndices > indices.length) {
				indices = new short[numIndices + 1];
			}

			for (int i = 0; i < numIndices; i += 6) {
				indices[i + 0] = (short) (((i / 6) * 4) + 0);
				indices[i + 1] = (short) (((i / 6) * 4) + 1);
				indices[i + 2] = (short) (((i / 6) * 4) + 2);
				indices[i + 3] = (short) (((i / 6) * 4) + 1);
				indices[i + 4] = (short) (((i / 6) * 4) + 2);
				indices[i + 5] = (short) (((i / 6) * 4) + 3);
			}

			indexBuffer[layer].clear();
			indexBuffer[layer].put(indices);
			lastIndex[layer] = numIndices;
		}

		vertexBuffer.position(0);
		textureBuffer.position(0);
		indexBuffer[layer].position(0);

		// Add color
		gl.glColor4f(red[layer] * alpha[layer], green[layer] * alpha[layer], blue[layer] * alpha[layer], alpha[layer]);

		// Bind the texture
		gl.glBindTexture(GL11.GL_TEXTURE_2D, gID);

		// Point to our vertex and texture buffers
		gl.glVertexPointer(2, GL10.GL_FLOAT, 0, vertexBuffer);
		gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, textureBuffer);

		// Draw the vertices as triangles
		gl.glDrawElements(GL10.GL_TRIANGLES, numIndices, GL10.GL_UNSIGNED_SHORT, indexBuffer[layer]);
	}
}