int
rsxgltest_draw()
{
float rgb[3] = {
compute_sine_wave(rgb_waves,rsxgltest_elapsed_time),
compute_sine_wave(rgb_waves + 1,rsxgltest_elapsed_time),
compute_sine_wave(rgb_waves + 2,rsxgltest_elapsed_time)
};
glClearColor(rgb[0],rgb[1],rgb[2],1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
return 1;
}
midi_value_t update_wave(struct wave* const wave)
{
// Increment speed counter
++wave->state.speed_counter;
// Change the wave output value only if the speed prescaler was reached
if (wave->state.speed_counter < wave->state.speed_prescaler) {
goto return_output;
}
// Reset speed counter
wave->state.speed_counter = 0;
// Advance step counter
advance_step_counter(wave);
// Compute new wave output value
static uint16_t output = 0;
switch (wave->settings.waveform) {
case WAVE_OFF:
return 0;
case WAVE_RANDOM:
output = compute_random_wave(wave);
break;
case WAVE_SAW_DOWN:
output = compute_saw_down_wave(wave);
break;
case WAVE_SAW_UP:
output = compute_saw_up_wave(wave);
break;
case WAVE_SINE:
output = compute_sine_wave(wave);
break;
case WAVE_SQUARE:
output = compute_square_wave(wave);
break;
case WAVE_STAIRS:
output = compute_stairs_wave(wave);
break;
case WAVE_TRIANGLE:
output = compute_triangle_wave(wave);
break;
}
// Amplify and add offset
output *= wave->settings.amplitude;
output /= MIDI_MAX_VALUE;
output += wave->settings.offset;
return_output:
return output;
}
int
rsxgltest_draw()
{
float rgb[3] = {
compute_sine_wave(rgb_waves,rsxgltest_elapsed_time),
compute_sine_wave(rgb_waves + 1,rsxgltest_elapsed_time),
compute_sine_wave(rgb_waves + 2,rsxgltest_elapsed_time)
};
glClearColor(rgb[0],rgb[1],rgb[2],1.0);
//glClearColor(0,0,0,1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUniform4f(c_location,1.0 - rgb[0],1.0 - rgb[1],1.0 - rgb[2],1);
glDrawArrays(GL_TRIANGLES,0,6);
return 1;
}
