Merge branch '1.8' into 1.9.4

0ba5b0a Merge branch '1.8-shaders' into 1.8
e5eb982 Add Optifine compatibility to rendering by disabling their separate chunk loading queue Add compatibility to shaders that utilize the Shadow Map by manually setting displayListEntitiesDirty to false Call Shaders.beginRender in an Event Handler to avoid calling all of EntityRenderer#renderWorld
3a28c5b Draw the GuiVideoRenderer on a separate framebuffer that has the actual size of the window instead of MC's framebuffer which may have a different size
636ce7b Add compatibility for GLSL Shaders
92eb11a Change video preview to be compatible with Optifine

src/main/java/com/replaymod/compat/ReplayModCompat.java

@@ -0,0 +1,23 @@
+package com.replaymod.compat;
+
+import com.replaymod.compat.shaders.ShaderBeginRender;
+import com.replaymod.core.ReplayMod;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLInitializationEvent;
+import net.minecraftforge.fml.common.eventhandler.EventBus;
+
+@Mod(modid = ReplayModCompat.MOD_ID, useMetadata = true)
+public class ReplayModCompat {
+    public static final String MOD_ID = "replaymod-compat";
+
+    @Mod.Instance(ReplayMod.MOD_ID)
+    private static ReplayMod core;
+
+    @Mod.EventHandler
+    public void init(FMLInitializationEvent event) {
+        EventBus bus = MinecraftForge.EVENT_BUS;
+        bus.register(new ShaderBeginRender());
+    }
+
+}

src/main/java/com/replaymod/compat/shaders/ShaderBeginRender.java

@@ -0,0 +1,39 @@
+package com.replaymod.compat.shaders;
+
+import com.replaymod.render.hooks.EntityRendererHandler;
+import net.minecraft.client.Minecraft;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.gameevent.TickEvent;
+
+import java.lang.reflect.InvocationTargetException;
+
+public class ShaderBeginRender {
+
+    private final Minecraft mc = Minecraft.getMinecraft();
+
+    /**
+     *  Invokes Shaders#beginRender when rendering a video,
+     *  as this would usually get called by EntityRenderer#renderWorld,
+     *  which we're not calling during rendering.
+     */
+    @SubscribeEvent
+    public void onRenderTickStart(TickEvent.RenderTickEvent event) {
+        if (event.phase != TickEvent.Phase.START) return;
+        if (ShaderReflection.shaders_beginRender == null) return;
+        if (ShaderReflection.config_isShaders == null) return;
+
+        try {
+            // check if video is being rendered
+            if (((EntityRendererHandler.IEntityRenderer) mc.entityRenderer).replayModRender_getHandler() == null)
+                return;
+
+            // check if Shaders are enabled
+            if (!(boolean) (ShaderReflection.config_isShaders.invoke(null))) return;
+
+            ShaderReflection.shaders_beginRender.invoke(null, mc, mc.timer.elapsedPartialTicks, 0);
+        } catch (IllegalAccessException | InvocationTargetException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/main/java/com/replaymod/compat/shaders/ShaderReflection.java

@@ -0,0 +1,102 @@
+package com.replaymod.compat.shaders;
+
+import net.minecraft.client.Minecraft;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+public class ShaderReflection {
+
+    // Shaders.frameTimeCounter
+    public static Field shaders_frameTimeCounter;
+
+    // Shaders.isShadowPass
+    public static Field shaders_isShadowPass;
+
+    // Shaders.beginRender()
+    public static Method shaders_beginRender;
+
+    // RenderGlobal.chunksToUpdateForced (Optifine only)
+    public static Field renderGlobal_chunksToUpdateForced;
+
+    // Config.isShaders() (Optifine only)
+    public static Method config_isShaders;
+
+    static {
+        initFrameTimeCounter();
+
+        initIsShadowPass();
+
+        initBeginRender();
+
+        initChunksToUpdateForced();
+
+        initConfigIsShaders();
+    }
+
+    private static void initFrameTimeCounter() {
+        try {
+            shaders_frameTimeCounter = Class.forName("shadersmod.client.Shaders")
+                    .getDeclaredField("frameTimeCounter");
+            shaders_frameTimeCounter.setAccessible(true);
+        } catch (ClassNotFoundException ignore) {
+            // no shaders mod installed
+        } catch (NoSuchFieldException e) {
+            // the field wasn't found. Has it been renamed?
+            e.printStackTrace();
+        }
+    }
+
+    private static void initIsShadowPass() {
+        try {
+            shaders_isShadowPass = Class.forName("shadersmod.client.Shaders")
+                    .getDeclaredField("isShadowPass");
+            shaders_isShadowPass.setAccessible(true);
+        } catch (ClassNotFoundException ignore) {
+            // no shaders mod installed
+        } catch (NoSuchFieldException e) {
+            // the field wasn't found. Has it been renamed?
+            e.printStackTrace();
+        }
+    }
+
+    private static void initBeginRender() {
+        try {
+            shaders_beginRender = Class.forName("shadersmod.client.Shaders")
+                    .getDeclaredMethod("beginRender", Minecraft.class, float.class, long.class);
+            shaders_frameTimeCounter.setAccessible(true);
+        } catch (ClassNotFoundException ignore) {
+            // no shaders mod installed
+        } catch (NoSuchMethodException e) {
+            // the method wasn't found. Has it been renamed?
+            e.printStackTrace();
+        }
+    }
+
+    private static void initChunksToUpdateForced() {
+        try {
+            renderGlobal_chunksToUpdateForced = Class.forName("net.minecraft.client.renderer.RenderGlobal")
+                    .getDeclaredField("chunksToUpdateForced");
+            renderGlobal_chunksToUpdateForced.setAccessible(true);
+        } catch (ClassNotFoundException ignore) {
+            // no shaders mod installed
+        } catch (NoSuchFieldException e) {
+            // the field wasn't found. Has it been renamed?
+            e.printStackTrace();
+        }
+    }
+
+    private static void initConfigIsShaders() {
+        try {
+            config_isShaders = Class.forName("Config")
+                    .getDeclaredMethod("isShaders");
+            config_isShaders.setAccessible(true);
+        } catch (ClassNotFoundException ignore) {
+            // no shaders mod installed
+        } catch (NoSuchMethodException e) {
+            // the method wasn't found. Has it been renamed?
+            e.printStackTrace();
+        }
+    }
+
+}

src/main/java/com/replaymod/compat/shaders/mixin/MixinShaderEntityRenderer.java

@@ -0,0 +1,28 @@
+package com.replaymod.compat.shaders.mixin;
+
+import com.replaymod.compat.shaders.ShaderReflection;
+import com.replaymod.replay.ReplayHandler;
+import com.replaymod.replay.ReplayModReplay;
+import net.minecraft.client.renderer.EntityRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(EntityRenderer.class)
+public abstract class MixinShaderEntityRenderer {
+
+    @Inject(method = "renderWorldPass", at = @At("HEAD"))
+    private void replayModCompat_updateShaderFrameTimeCounter(CallbackInfo ignore) {
+        if (ReplayModReplay.instance.getReplayHandler() == null) return;
+        if (ShaderReflection.shaders_frameTimeCounter == null) return;
+
+        ReplayHandler replayHandler = ReplayModReplay.instance.getReplayHandler();
+        float timestamp = replayHandler.getReplaySender().currentTimeStamp() / 1000f % 3600f;
+        try {
+            ShaderReflection.shaders_frameTimeCounter.set(null, timestamp);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/com/replaymod/compat/shaders/mixin/MixinShaderRenderChunk.java

@@ -0,0 +1,28 @@
+package com.replaymod.compat.shaders.mixin;
+
+import com.replaymod.render.hooks.EntityRendererHandler;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.chunk.RenderChunk;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(RenderChunk.class)
+public abstract class MixinShaderRenderChunk {
+
+    private final Minecraft mc = Minecraft.getMinecraft();
+
+    /**
+     *  Changes the RenderChunk#isPlayerUpdate method that Optifine adds
+     *  to always return true while rendering so no chunks are being added
+     *  to a separate rendering queue
+     */
+    @Inject(method = "isPlayerUpdate", at = @At("HEAD"), cancellable = true)
+    private void replayModCompat_disableIsPlayerUpdate(CallbackInfoReturnable<Boolean> ci) {
+        if (((EntityRendererHandler.IEntityRenderer) mc.entityRenderer).replayModRender_getHandler() == null) return;
+        ci.setReturnValue(true);
+    }
+
+
+}

src/main/java/com/replaymod/compat/shaders/mixin/MixinShaderRenderGlobal.java

@@ -0,0 +1,40 @@
+package com.replaymod.compat.shaders.mixin;
+
+import com.replaymod.compat.shaders.ShaderReflection;
+import com.replaymod.render.hooks.EntityRendererHandler;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.culling.ICamera;
+import net.minecraft.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(RenderGlobal.class)
+public abstract class MixinShaderRenderGlobal {
+
+    private final Minecraft mc = Minecraft.getMinecraft();
+
+    @Shadow
+    public boolean displayListEntitiesDirty;
+
+    @Inject(method = "setupTerrain", at = @At("HEAD"), cancellable = true)
+    public void replayModCompat_setupTerrain(Entity viewEntity, double partialTicks, ICamera camera,
+                                             int frameCount, boolean playerSpectator, CallbackInfo ci) {
+        if (((EntityRendererHandler.IEntityRenderer) mc.entityRenderer).replayModRender_getHandler() == null) return;
+        if (ShaderReflection.shaders_isShadowPass == null) return;
+
+        // when called by the shadow pass, displayListEntitiesDirty can't be set to false, as no chunk updates
+        // are being processed. As it's being set to true by ChunkLoadingRenderGlobal#updateChunks, we have to
+        // set it to false manually to exit the loop imposed by MixinRenderGlobal#replayModRender_setupTerrain.
+        try {
+            if ((boolean) ShaderReflection.shaders_isShadowPass.get(null) == true) {
+                displayListEntitiesDirty = false;
+            }
+        } catch (IllegalAccessException ignore) {}
+
+    }
+
+}