X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=effect_chain.cpp;h=3bc04a3d84a7b621f4af7b345dde1ad781b8224c;hp=64e3decdd5f5ac4403fe8afd1d8c6eeb73c44fcd;hb=af39090a8902411ffc0c89f296a0f8bde9229f60;hpb=72764bef4a33d18d4282887a188946261937ca8e

diff --git a/effect_chain.cpp b/effect_chain.cpp
index 64e3dec..3bc04a3 100644
--- a/effect_chain.cpp
+++ b/effect_chain.cpp
@@ -21,8 +21,29 @@
 EffectChain::EffectChain(float aspect_nom, float aspect_denom)
 	: aspect_nom(aspect_nom),
 	  aspect_denom(aspect_denom),
+	  fbo(0),
 	  finalized(false) {}
 
+EffectChain::~EffectChain()
+{
+	for (unsigned i = 0; i < nodes.size(); ++i) {
+		if (nodes[i]->output_texture != 0) {
+			glDeleteTextures(1, &nodes[i]->output_texture);
+		}
+		delete nodes[i]->effect;
+		delete nodes[i];
+	}
+	for (unsigned i = 0; i < phases.size(); ++i) {
+		glDeleteProgram(phases[i]->glsl_program_num);
+		glDeleteShader(phases[i]->vertex_shader);
+		glDeleteShader(phases[i]->fragment_shader);
+		delete phases[i];
+	}
+	if (fbo != 0) {
+		glDeleteFramebuffers(1, &fbo);
+	}
+}
+
 Input *EffectChain::add_input(Input *input)
 {
 	inputs.push_back(input);
@@ -49,6 +70,7 @@ Node *EffectChain::add_node(Effect *effect)
 	node->effect_id = effect_id;
 	node->output_color_space = COLORSPACE_INVALID;
 	node->output_gamma_curve = GAMMA_INVALID;
+	node->output_texture = 0;
 
 	nodes.push_back(node);
 	node_map[effect] = node;
@@ -267,6 +289,8 @@ Phase *EffectChain::compile_glsl_program(
 
 	Phase *phase = new Phase;
 	phase->glsl_program_num = glsl_program_num;
+	phase->vertex_shader = vs_obj;
+	phase->fragment_shader = fs_obj;
 	phase->input_needs_mipmaps = input_needs_mipmaps;
 	phase->inputs = true_inputs;
 	phase->effects = effects;
@@ -330,13 +354,27 @@ void EffectChain::construct_glsl_programs(Node *output)
 					start_new_phase = true;
 				}
 
-				if (deps[i]->outgoing_links.size() > 1 && deps[i]->effect->num_inputs() > 0) {
-					// More than one effect uses this as the input,
-					// and it is not a texture itself.
-					// The easiest thing to do (and probably also the safest
-					// performance-wise in most cases) is to bounce it to a texture
-					// and then let the next passes read from that.
-					start_new_phase = true;
+				if (deps[i]->outgoing_links.size() > 1) {
+					if (deps[i]->effect->num_inputs() > 0) {
+						// More than one effect uses this as the input,
+						// and it is not a texture itself.
+						// The easiest thing to do (and probably also the safest
+						// performance-wise in most cases) is to bounce it to a texture
+						// and then let the next passes read from that.
+						start_new_phase = true;
+					} else {
+						// For textures, we try to be slightly more clever;
+						// if none of our outputs need a bounce, we don't bounce
+						// but instead simply use the effect many times.
+						//
+						// Strictly speaking, we could bounce it for some outputs
+						// and use it directly for others, but the processing becomes
+						// somewhat simpler if the effect is only used in one such way.
+						for (unsigned j = 0; j < deps[i]->outgoing_links.size(); ++j) {
+							Node *rdep = deps[i]->outgoing_links[j];
+							start_new_phase |= rdep->effect->needs_texture_bounce();
+						}
+					}
 				}
 
 				if (deps[i]->effect->changes_output_size()) {
@@ -726,6 +764,7 @@ void EffectChain::fix_output_color_space()
 		conversion->effect->set_int("destination_space", output_format.color_space);
 		conversion->output_color_space = output_format.color_space;
 		connect_nodes(output, conversion);
+		propagate_gamma_and_color_space();
 	}
 }