Quartz 4

GuiItemAtlas.java

6 min read

GuiItemAtlas.java

net.minecraft.client.gui.render.GuiItemAtlas

信息

  • 全限定名：net.minecraft.client.gui.render.GuiItemAtlas
  • 类型：public class
  • 包：net.minecraft.client.gui.render
  • 源码路径：src/main/java/net/minecraft/client/gui/render/GuiItemAtlas.java
  • 起始行号：L27
  • 实现：AutoCloseable
  • 职责：

    TODO

字段/常量

  • MINIMUM_TEXTURE_SIZE

    • 类型: int
    • 修饰符: private static final
    • 源码定位: L28
    • 说明:

      TODO

  • MAXIMUM_TEXTURE_SIZE

    • 类型: int
    • 修饰符: private static final
    • 源码定位: L29
    • 说明:

      TODO

  • submitNodeCollector

    • 类型: SubmitNodeCollector
    • 修饰符: private final
    • 源码定位: L30
    • 说明:

      TODO

  • featureRenderDispatcher

    • 类型: FeatureRenderDispatcher
    • 修饰符: private final
    • 源码定位: L31
    • 说明:

      TODO

  • bufferSource

    • 类型: MultiBufferSource.BufferSource
    • 修饰符: private final
    • 源码定位: L32
    • 说明:

      TODO

  • textureSize

    • 类型: int
    • 修饰符: private final
    • 源码定位: L33
    • 说明:

      TODO

  • slotTextureSize

    • 类型: int
    • 修饰符: private final
    • 源码定位: L34
    • 说明:

      TODO

  • texture

    • 类型: GpuTexture
    • 修饰符: private final
    • 源码定位: L35
    • 说明:

      TODO

  • textureView

    • 类型: GpuTextureView
    • 修饰符: private final
    • 源码定位: L36
    • 说明:

      TODO

  • depthTexture

    • 类型: GpuTexture
    • 修饰符: private final
    • 源码定位: L37
    • 说明:

      TODO

  • depthTextureView

    • 类型: GpuTextureView
    • 修饰符: private final
    • 源码定位: L38
    • 说明:

      TODO

  • allocator

    • 类型: DynamicAtlasAllocator<Object>
    • 修饰符: private final
    • 源码定位: L39
    • 说明:

      TODO

  • poseStack

    • 类型: PoseStack
    • 修饰符: private final
    • 源码定位: L40
    • 说明:

      TODO

  • projection

    • 类型: Projection
    • 修饰符: private final
    • 源码定位: L41
    • 说明:

      TODO

  • projectionMatrixBuffer

    • 类型: ProjectionMatrixBuffer
    • 修饰符: private final
    • 源码定位: L42
    • 说明:

      TODO

内部类/嵌套类型

  • net.minecraft.client.gui.render.GuiItemAtlas.SlotView
    • 类型: record
    • 修饰符: public
    • 源码定位: L146
    • 说明:

      TODO

构造器

public GuiItemAtlas(SubmitNodeCollector submitNodeCollector, FeatureRenderDispatcher featureRenderDispatcher, MultiBufferSource.BufferSource bufferSource, int textureSize, int slotTextureSize) @ L44

  • 构造器名：GuiItemAtlas
  • 源码定位：L44
  • 修饰符：public

参数:

  • submitNodeCollector: SubmitNodeCollector
  • featureRenderDispatcher: FeatureRenderDispatcher
  • bufferSource: MultiBufferSource.BufferSource
  • textureSize: int
  • slotTextureSize: int

说明:

TODO

方法

下面的方法块按源码顺序生成。

public static int computeTextureSizeFor(int slotTextureSize, int requiredSlotCount) @ L66

  • 方法名：computeTextureSizeFor
  • 源码定位：L66
  • 返回类型：int
  • 修饰符：public static

参数:

  • slotTextureSize: int
  • requiredSlotCount: int

说明:

TODO

public void endFrame() @ L72

  • 方法名：endFrame
  • 源码定位：L72
  • 返回类型：void
  • 修饰符：public

参数:

  • 无

说明:

TODO

public boolean tryPrepareFor(Set<Object> items) @ L76

  • 方法名：tryPrepareFor
  • 源码定位：L76
  • 返回类型：boolean
  • 修饰符：public

参数:

  • items: Set

    说明:

    TODO

    public GuiItemAtlas.SlotView getOrUpdate(TrackingItemStackRenderState item) @ L80

    • 方法名：getOrUpdate
    • 源码定位：L80
    • 返回类型：GuiItemAtlas.SlotView
    • 修饰符：public

    参数:

    • item: TrackingItemStackRenderState

    说明:

    TODO

    private void drawToSlot(int slotX, int slotY, boolean clear, ItemStackRenderState item) @ L101

    • 方法名：drawToSlot
    • 源码定位：L101
    • 返回类型：void
    • 修饰符：private

    参数:

    • slotX: int
    • slotY: int
    • clear: boolean
    • item: ItemStackRenderState

    说明:

    TODO

    public int textureSize() @ L132

    • 方法名：textureSize
    • 源码定位：L132
    • 返回类型：int
    • 修饰符：public

    参数:

    • 无

    说明:

    TODO

    public void close() @ L136

    • 方法名：close
    • 源码定位：L136
    • 返回类型：void
    • 修饰符：public

    参数:

    • 无

    说明:

    TODO

    代码

    @OnlyIn(Dist.CLIENT)
public class GuiItemAtlas implements AutoCloseable {
    private static final int MINIMUM_TEXTURE_SIZE = 512;
    private static final int MAXIMUM_TEXTURE_SIZE = RenderSystem.getDevice().getMaxTextureSize();
    private final SubmitNodeCollector submitNodeCollector;
    private final FeatureRenderDispatcher featureRenderDispatcher;
    private final MultiBufferSource.BufferSource bufferSource;
    private final int textureSize;
    private final int slotTextureSize;
    private final GpuTexture texture;
    private final GpuTextureView textureView;
    private final GpuTexture depthTexture;
    private final GpuTextureView depthTextureView;
    private final DynamicAtlasAllocator<Object> allocator;
    private final PoseStack poseStack = new PoseStack();
    private final Projection projection = new Projection();
    private final ProjectionMatrixBuffer projectionMatrixBuffer = new ProjectionMatrixBuffer("items");
 
    public GuiItemAtlas(
        SubmitNodeCollector submitNodeCollector,
        FeatureRenderDispatcher featureRenderDispatcher,
        MultiBufferSource.BufferSource bufferSource,
        int textureSize,
        int slotTextureSize
    ) {
        this.submitNodeCollector = submitNodeCollector;
        this.featureRenderDispatcher = featureRenderDispatcher;
        this.bufferSource = bufferSource;
        int storageSize = textureSize / slotTextureSize;
        this.textureSize = textureSize;
        this.slotTextureSize = slotTextureSize;
        GpuDevice device = RenderSystem.getDevice();
        this.texture = device.createTexture("UI items atlas", 13, TextureFormat.RGBA8, textureSize, textureSize, 1, 1);
        this.textureView = device.createTextureView(this.texture);
        this.depthTexture = device.createTexture("UI items atlas depth", 9, TextureFormat.DEPTH32, textureSize, textureSize, 1, 1);
        this.depthTextureView = device.createTextureView(this.depthTexture);
        this.allocator = new DynamicAtlasAllocator<>(storageSize, storageSize);
        device.createCommandEncoder().clearColorAndDepthTextures(this.texture, 0, this.depthTexture, 1.0);
    }
 
    public static int computeTextureSizeFor(int slotTextureSize, int requiredSlotCount) {
        int preferredSlotCount = requiredSlotCount + requiredSlotCount / 2;
        int atlasSize = Mth.smallestSquareSide(preferredSlotCount);
        return Math.clamp((long)Mth.smallestEncompassingPowerOfTwo(atlasSize * slotTextureSize), 512, MAXIMUM_TEXTURE_SIZE);
    }
 
    public void endFrame() {
        this.allocator.endFrame();
    }
 
    public boolean tryPrepareFor(Set<Object> items) {
        return this.allocator.hasSpaceForAll(items) ? true : this.allocator.reclaimSpaceFor(items);
    }
 
    public GuiItemAtlas.@Nullable SlotView getOrUpdate(TrackingItemStackRenderState item) {
        DynamicAtlasAllocator.Slot slot = this.allocator.getOrAllocate(item.getModelIdentity(), item.isAnimated());
        if (slot == null) {
            return null;
        } else {
            switch (slot.state()) {
                case EMPTY:
                    this.drawToSlot(slot.x(), slot.y(), false, item);
                    break;
                case STALE:
                    this.drawToSlot(slot.x(), slot.y(), true, item);
                case READY:
            }
 
            float slotUvSize = (float)this.slotTextureSize / this.textureSize;
            float u0 = slot.x() * slotUvSize;
            float v0 = 1.0F - slot.y() * slotUvSize;
            return new GuiItemAtlas.SlotView(this.textureView, u0, v0, u0 + slotUvSize, v0 - slotUvSize);
        }
    }
 
    private void drawToSlot(int slotX, int slotY, boolean clear, ItemStackRenderState item) {
        int left = slotX * this.slotTextureSize;
        int top = slotY * this.slotTextureSize;
        int bottom = top + this.slotTextureSize;
        GpuDevice device = RenderSystem.getDevice();
        if (clear) {
            device.createCommandEncoder()
                .clearColorAndDepthTextures(
                    this.texture, 0, this.depthTexture, 1.0, left, this.textureSize - bottom, this.slotTextureSize, this.slotTextureSize
                );
        }
 
        this.poseStack.pushPose();
        this.poseStack.translate(left + this.slotTextureSize / 2.0F, top + this.slotTextureSize / 2.0F, 0.0F);
        this.poseStack.scale(this.slotTextureSize, -this.slotTextureSize, this.slotTextureSize);
        RenderSystem.outputColorTextureOverride = this.textureView;
        RenderSystem.outputDepthTextureOverride = this.depthTextureView;
        this.projection.setupOrtho(-1000.0F, 1000.0F, this.textureSize, this.textureSize, true);
        RenderSystem.setProjectionMatrix(this.projectionMatrixBuffer.getBuffer(this.projection), ProjectionType.ORTHOGRAPHIC);
        RenderSystem.enableScissorForRenderTypeDraws(left, this.textureSize - bottom, this.slotTextureSize, this.slotTextureSize);
        Lighting.Entry lighting = item.usesBlockLight() ? Lighting.Entry.ITEMS_3D : Lighting.Entry.ITEMS_FLAT;
        Minecraft.getInstance().gameRenderer.getLighting().setupFor(lighting);
        item.submit(this.poseStack, this.submitNodeCollector, 15728880, OverlayTexture.NO_OVERLAY, 0);
        this.featureRenderDispatcher.renderAllFeatures();
        this.bufferSource.endBatch();
        RenderSystem.disableScissorForRenderTypeDraws();
        RenderSystem.outputColorTextureOverride = null;
        RenderSystem.outputDepthTextureOverride = null;
        this.poseStack.popPose();
    }
 
    public int textureSize() {
        return this.textureSize;
    }
 
    @Override
    public void close() {
        this.texture.close();
        this.textureView.close();
        this.depthTexture.close();
        this.depthTextureView.close();
        this.projectionMatrixBuffer.close();
    }
 
    @OnlyIn(Dist.CLIENT)
    public record SlotView(GpuTextureView textureView, float u0, float v0, float u1, float v1) {
    }
}

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