package net.minecraft.client.shader;
import com.google.common.base.Charsets;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.vecmath.Matrix4f;
import net.minecraft.client.renderer.texture.ITextureObject;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.client.resources.IResource;
import net.minecraft.client.resources.IResourceManager;
import net.minecraft.client.util.JsonException;
import net.minecraft.util.JsonUtils;
import net.minecraft.util.ResourceLocation;
import org.apache.commons.io.IOUtils;
import org.lwjgl.opengl.GL11;
public class ShaderGroup
{
private Framebuffer mainFramebuffer;
private IResourceManager resourceManager;
private String shaderGroupName;
private final List listShaders = Lists.newArrayList();
private final Map mapFramebuffers = Maps.newHashMap();
private final List listFramebuffers = Lists.newArrayList();
private Matrix4f projectionMatrix;
private int mainFramebufferWidth;
private int mainFramebufferHeight;
private float field_148036_j;
private float field_148037_k;
private static final String __OBFID = "CL_00001041";
public ShaderGroup(TextureManager p_i1050_1_, IResourceManager p_i1050_2_, Framebuffer p_i1050_3_, ResourceLocation p_i1050_4_) throws JsonException
{
this.resourceManager = p_i1050_2_;
this.mainFramebuffer = p_i1050_3_;
this.field_148036_j = 0.0F;
this.field_148037_k = 0.0F;
this.mainFramebufferWidth = p_i1050_3_.framebufferWidth;
this.mainFramebufferHeight = p_i1050_3_.framebufferHeight;
this.shaderGroupName = p_i1050_4_.toString();
this.resetProjectionMatrix();
this.parseGroup(p_i1050_1_, p_i1050_4_);
}
public void parseGroup(TextureManager p_152765_1_, ResourceLocation p_152765_2_) throws JsonException
{
JsonParser var3 = new JsonParser();
InputStream var4 = null;
try
{
IResource var5 = this.resourceManager.getResource(p_152765_2_);
var4 = var5.getInputStream();
JsonObject var22 = var3.parse(IOUtils.toString(var4, Charsets.UTF_8)).getAsJsonObject();
JsonArray var7;
int var8;
Iterator var9;
JsonElement var10;
JsonException var12;
if (JsonUtils.jsonObjectFieldTypeIsArray(var22, "targets"))
{
var7 = var22.getAsJsonArray("targets");
var8 = 0;
for (var9 = var7.iterator(); var9.hasNext(); ++var8)
{
var10 = (JsonElement)var9.next();
try
{
this.initTarget(var10);
}
catch (Exception var19)
{
var12 = JsonException.func_151379_a(var19);
var12.func_151380_a("targets[" + var8 + "]");
throw var12;
}
}
}
if (JsonUtils.jsonObjectFieldTypeIsArray(var22, "passes"))
{
var7 = var22.getAsJsonArray("passes");
var8 = 0;
for (var9 = var7.iterator(); var9.hasNext(); ++var8)
{
var10 = (JsonElement)var9.next();
try
{
this.parsePass(p_152765_1_, var10);
}
catch (Exception var18)
{
var12 = JsonException.func_151379_a(var18);
var12.func_151380_a("passes[" + var8 + "]");
throw var12;
}
}
}
}
catch (Exception var20)
{
JsonException var6 = JsonException.func_151379_a(var20);
var6.func_151381_b(p_152765_2_.getResourcePath());
throw var6;
}
finally
{
IOUtils.closeQuietly(var4);
}
}
private void initTarget(JsonElement p_148027_1_) throws JsonException
{
if (JsonUtils.jsonElementTypeIsString(p_148027_1_))
{
this.addFramebuffer(p_148027_1_.getAsString(), this.mainFramebufferWidth, this.mainFramebufferHeight);
}
else
{
JsonObject var2 = JsonUtils.getElementAsJsonObject(p_148027_1_, "target");
String var3 = JsonUtils.getJsonObjectStringFieldValue(var2, "name");
int var4 = JsonUtils.getJsonObjectIntegerFieldValueOrDefault(var2, "width", this.mainFramebufferWidth);
int var5 = JsonUtils.getJsonObjectIntegerFieldValueOrDefault(var2, "height", this.mainFramebufferHeight);
if (this.mapFramebuffers.containsKey(var3))
{
throw new JsonException(var3 + " is already defined");
}
this.addFramebuffer(var3, var4, var5);
}
}
private void parsePass(TextureManager p_152764_1_, JsonElement p_152764_2_) throws JsonException
{
JsonObject var3 = JsonUtils.getElementAsJsonObject(p_152764_2_, "pass");
String var4 = JsonUtils.getJsonObjectStringFieldValue(var3, "name");
String var5 = JsonUtils.getJsonObjectStringFieldValue(var3, "intarget");
String var6 = JsonUtils.getJsonObjectStringFieldValue(var3, "outtarget");
Framebuffer var7 = this.getFramebuffer(var5);
Framebuffer var8 = this.getFramebuffer(var6);
if (var7 == null)
{
throw new JsonException("Input target \'" + var5 + "\' does not exist");
}
else if (var8 == null)
{
throw new JsonException("Output target \'" + var6 + "\' does not exist");
}
else
{
Shader var9 = this.addShader(var4, var7, var8);
JsonArray var10 = JsonUtils.getJsonObjectJsonArrayFieldOrDefault(var3, "auxtargets", (JsonArray)null);
if (var10 != null)
{
int var11 = 0;
for (Iterator var12 = var10.iterator(); var12.hasNext(); ++var11)
{
JsonElement var13 = (JsonElement)var12.next();
try
{
JsonObject var14 = JsonUtils.getElementAsJsonObject(var13, "auxtarget");
String var30 = JsonUtils.getJsonObjectStringFieldValue(var14, "name");
String var16 = JsonUtils.getJsonObjectStringFieldValue(var14, "id");
Framebuffer var17 = this.getFramebuffer(var16);
if (var17 == null)
{
ResourceLocation var18 = new ResourceLocation("textures/effect/" + var16 + ".png");
try
{
this.resourceManager.getResource(var18);
}
catch (FileNotFoundException var24)
{
throw new JsonException("Render target or texture \'" + var16 + "\' does not exist");
}
p_152764_1_.bindTexture(var18);
ITextureObject var19 = p_152764_1_.getTexture(var18);
int var20 = JsonUtils.getJsonObjectIntegerFieldValue(var14, "width");
int var21 = JsonUtils.getJsonObjectIntegerFieldValue(var14, "height");
boolean var22 = JsonUtils.getJsonObjectBooleanFieldValue(var14, "bilinear");
if (var22)
{
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
}
else
{
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
}
var9.addAuxFramebuffer(var30, Integer.valueOf(var19.getGlTextureId()), var20, var21);
}
else
{
var9.addAuxFramebuffer(var30, var17, var17.framebufferTextureWidth, var17.framebufferTextureHeight);
}
}
catch (Exception var25)
{
JsonException var15 = JsonException.func_151379_a(var25);
var15.func_151380_a("auxtargets[" + var11 + "]");
throw var15;
}
}
}
JsonArray var26 = JsonUtils.getJsonObjectJsonArrayFieldOrDefault(var3, "uniforms", (JsonArray)null);
if (var26 != null)
{
int var27 = 0;
for (Iterator var28 = var26.iterator(); var28.hasNext(); ++var27)
{
JsonElement var29 = (JsonElement)var28.next();
try
{
this.initUniform(var29);
}
catch (Exception var23)
{
JsonException var31 = JsonException.func_151379_a(var23);
var31.func_151380_a("uniforms[" + var27 + "]");
throw var31;
}
}
}
}
}
private void initUniform(JsonElement p_148028_1_) throws JsonException
{
JsonObject var2 = JsonUtils.getElementAsJsonObject(p_148028_1_, "uniform");
String var3 = JsonUtils.getJsonObjectStringFieldValue(var2, "name");
ShaderUniform var4 = ((Shader)this.listShaders.get(this.listShaders.size() - 1)).getShaderManager().getShaderUniform(var3);
if (var4 == null)
{
throw new JsonException("Uniform \'" + var3 + "\' does not exist");
}
else
{
float[] var5 = new float[4];
int var6 = 0;
JsonArray var7 = JsonUtils.getJsonObjectJsonArrayField(var2, "values");
for (Iterator var8 = var7.iterator(); var8.hasNext(); ++var6)
{
JsonElement var9 = (JsonElement)var8.next();
try
{
var5[var6] = JsonUtils.getJsonElementFloatValue(var9, "value");
}
catch (Exception var12)
{
JsonException var11 = JsonException.func_151379_a(var12);
var11.func_151380_a("values[" + var6 + "]");
throw var11;
}
}
switch (var6)
{
case 0:
default:
break;
case 1:
var4.set(var5[0]);
break;
case 2:
var4.set(var5[0], var5[1]);
break;
case 3:
var4.set(var5[0], var5[1], var5[2]);
break;
case 4:
var4.set(var5[0], var5[1], var5[2], var5[3]);
}
}
}
public Framebuffer func_177066_a(String p_177066_1_)
{
return (Framebuffer)this.mapFramebuffers.get(p_177066_1_);
}
public void addFramebuffer(String p_148020_1_, int p_148020_2_, int p_148020_3_)
{
Framebuffer var4 = new Framebuffer(p_148020_2_, p_148020_3_, true);
var4.setFramebufferColor(0.0F, 0.0F, 0.0F, 0.0F);
this.mapFramebuffers.put(p_148020_1_, var4);
if (p_148020_2_ == this.mainFramebufferWidth && p_148020_3_ == this.mainFramebufferHeight)
{
this.listFramebuffers.add(var4);
}
}
public void deleteShaderGroup()
{
Iterator var1 = this.mapFramebuffers.values().iterator();
while (var1.hasNext())
{
Framebuffer var2 = (Framebuffer)var1.next();
var2.deleteFramebuffer();
}
var1 = this.listShaders.iterator();
while (var1.hasNext())
{
Shader var3 = (Shader)var1.next();
var3.deleteShader();
}
this.listShaders.clear();
}
public Shader addShader(String p_148023_1_, Framebuffer p_148023_2_, Framebuffer p_148023_3_) throws JsonException
{
Shader var4 = new Shader(this.resourceManager, p_148023_1_, p_148023_2_, p_148023_3_);
this.listShaders.add(this.listShaders.size(), var4);
return var4;
}
private void resetProjectionMatrix()
{
this.projectionMatrix = new Matrix4f();
this.projectionMatrix.setIdentity();
this.projectionMatrix.m00 = 2.0F / (float)this.mainFramebuffer.framebufferTextureWidth;
this.projectionMatrix.m11 = 2.0F / (float)(-this.mainFramebuffer.framebufferTextureHeight);
this.projectionMatrix.m22 = -0.0020001999F;
this.projectionMatrix.m33 = 1.0F;
this.projectionMatrix.m03 = -1.0F;
this.projectionMatrix.m13 = 1.0F;
this.projectionMatrix.m23 = -1.0001999F;
}
public void createBindFramebuffers(int p_148026_1_, int p_148026_2_)
{
this.mainFramebufferWidth = this.mainFramebuffer.framebufferTextureWidth;
this.mainFramebufferHeight = this.mainFramebuffer.framebufferTextureHeight;
this.resetProjectionMatrix();
Iterator var3 = this.listShaders.iterator();
while (var3.hasNext())
{
Shader var4 = (Shader)var3.next();
var4.setProjectionMatrix(this.projectionMatrix);
}
var3 = this.listFramebuffers.iterator();
while (var3.hasNext())
{
Framebuffer var5 = (Framebuffer)var3.next();
var5.createBindFramebuffer(p_148026_1_, p_148026_2_);
}
}
public void loadShaderGroup(float p_148018_1_)
{
if (p_148018_1_ < this.field_148037_k)
{
this.field_148036_j += 1.0F - this.field_148037_k;
this.field_148036_j += p_148018_1_;
}
else
{
this.field_148036_j += p_148018_1_ - this.field_148037_k;
}
for (this.field_148037_k = p_148018_1_; this.field_148036_j > 20.0F; this.field_148036_j -= 20.0F)
{
;
}
Iterator var2 = this.listShaders.iterator();
while (var2.hasNext())
{
Shader var3 = (Shader)var2.next();
var3.loadShader(this.field_148036_j / 20.0F);
}
}
public final String getShaderGroupName()
{
return this.shaderGroupName;
}
private Framebuffer getFramebuffer(String p_148017_1_)
{
return p_148017_1_ == null ? null : (p_148017_1_.equals("minecraft:main") ? this.mainFramebuffer : (Framebuffer)this.mapFramebuffers.get(p_148017_1_));
}
}