// strong one-to-one).
frag_shader += "(tc) CS_OUTPUT_VAL\n";
} else {
+ assert(phase->effect_ids.count(make_pair(input, link_type)));
frag_shader += string(" ") + phase->effect_ids[make_pair(input, link_type)] + "\n";
}
}
frag_shader += "\n";
}
if (phase->is_compute_shader) {
+ assert(phase->effect_ids.count(make_pair(phase->compute_shader_node, IN_SAME_PHASE)));
frag_shader += string("#define INPUT ") + phase->effect_ids[make_pair(phase->compute_shader_node, IN_SAME_PHASE)] + "\n";
if (phase->compute_shader_node == phase->effects.back()) {
// No postprocessing.
frag_shader += string("#define CS_POSTPROC ") + phase->effect_ids[make_pair(phase->effects.back(), IN_SAME_PHASE)] + "\n";
}
} else {
+ assert(phase->effect_ids.count(make_pair(phase->effects.back(), IN_SAME_PHASE)));
frag_shader += string("#define INPUT ") + phase->effect_ids[make_pair(phase->effects.back(), IN_SAME_PHASE)] + "\n";
}
} else if (!node->strong_one_to_one_sampling) {
// If all nodes so far are strong one-to-one, we can put them after
// the compute shader (ie., process them on the output).
- start_new_phase = !node->strong_one_to_one_sampling;
- } else {
+ start_new_phase = true;
+ } else if (!start_new_phase) {
phase->is_compute_shader = true;
phase->compute_shader_node = deps[i];
}
output_dot("step21-split-to-phases.dot");
+ // There are some corner cases where we thought we needed to add a dummy
+ // effect, but then it turned out later we didn't (e.g. induces_compute_shader()
+ // didn't see a mipmap conflict coming, which would cause the compute shader
+ // to be split off from the inal phase); if so, remove the extra phase
+ // at the end, since it will give us some trouble during execution.
+ //
+ // TODO: Remove induces_compute_shader() and replace it with precise tracking.
+ if (has_dummy_effect && !phases[phases.size() - 2]->is_compute_shader) {
+ resource_pool->release_glsl_program(phases.back()->glsl_program_num);
+ delete phases.back();
+ phases.pop_back();
+ has_dummy_effect = false;
+ }
+
+ output_dot("step22-dummy-phase-removal.dot");
+
assert(phases[0]->inputs.empty());
finalized = true;
assert(y == 0);
assert(num_phases >= 2);
assert(!phases.back()->is_compute_shader);
+ assert(phases[phases.size() - 2]->is_compute_shader);
assert(phases.back()->effects.size() == 1);
assert(phases.back()->effects[0]->effect->effect_type_id() == "ComputeShaderOutputDisplayEffect");
phase->timer_query_objects_running.push_back(timer_query_object);
}
bool last_phase = (phase_num == num_phases - 1);
- if (phase_num == num_phases - 1) {
+ if (last_phase) {
// Last phase goes to the output the user specified.
if (!phase->is_compute_shader) {
+ assert(dest_fbo != (GLuint)-1);
glBindFramebuffer(GL_FRAMEBUFFER, dest_fbo);
check_error();
GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);