@Override
public void close() {
super.close();
program.close();
gl.glDeleteBuffers(2, new int[] {verticesId, elementsId}, 0);
gl.checkError("UniformQuadBatch close");
}
@Override
public void flush() {
super.flush();
if (quadCounter > 0) {
bindTexture();
gl.glUniform4fv(uData, quadCounter * vec4sPerQuad(), data, 0);
gl.glDrawElements(GL_TRIANGLES, quadCounter * ELEMENTS_PER_QUAD, GL_UNSIGNED_SHORT, 0);
gl.checkError("UniformQuadBatch flush");
quadCounter = 0;
}
}
@Override
public void begin(float fbufWidth, float fbufHeight, boolean flip) {
super.begin(fbufWidth, fbufHeight, flip);
program.activate();
// TODO: apparently we can avoid glUniform calls because they're part of the program state; so
// we can cache the last set values for all these glUniform calls and only set them anew if
// they differ...
gl.glUniform2f(uHScreenSize, fbufWidth / 2f, fbufHeight / 2f);
gl.glUniform1f(uFlip, flip ? -1 : 1);
gl.glBindBuffer(GL_ARRAY_BUFFER, verticesId);
gl.glEnableVertexAttribArray(aVertex);
gl.glVertexAttribPointer(aVertex, VERTEX_SIZE, GL_SHORT, false, 0, 0);
gl.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementsId);
gl.glActiveTexture(GL_TEXTURE0);
gl.glUniform1i(uTexture, 0);
gl.checkError("UniformQuadBatch begin");
}
@Override
public void end() {
super.end();
gl.glDisableVertexAttribArray(aVertex);
gl.checkError("UniformQuadBatch end");
}