GlTexture.java

com.mojang.blaze3d.opengl.GlTexture

信息

• 全限定名：com.mojang.blaze3d.opengl.GlTexture
• 类型：public class
• 包：com.mojang.blaze3d.opengl
• 源码路径：src/main/java/com/mojang/blaze3d/opengl/GlTexture.java
• 起始行号：L12
• 继承：GpuTexture
• 职责：

  TODO

字段/常量

• EMPTY

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L13
  • 说明:

    TODO

• id

  • 类型: int
  • 修饰符: protected final
  • 源码定位: L14
  • 说明:

    TODO

• firstFboId

  • 类型: int
  • 修饰符: private
  • 源码定位: L15
  • 说明:

    TODO

• firstFboDepthId

  • 类型: int
  • 修饰符: private
  • 源码定位: L16
  • 说明:

    TODO

• fboCache

  • 类型: Int2IntMap
  • 修饰符: private
  • 源码定位: L17
  • 说明:

    TODO

• closed

  • 类型: boolean
  • 修饰符: protected
  • 源码定位: L18
  • 说明:

    TODO

• views

  • 类型: int
  • 修饰符: private
  • 源码定位: L19
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

protected GlTexture(int usage, String label, TextureFormat format, int width, int height, int depthOrLayers, int mipLevels, int id) @ L21

• 构造器名：GlTexture
• 源码定位：L21
• 修饰符：protected

参数:

• usage: int
• label: String
• format: TextureFormat
• width: int
• height: int
• depthOrLayers: int
• mipLevels: int
• id: int

说明:

TODO

方法

下面的方法块按源码顺序生成。

public void close() @ L26

• 方法名：close
• 源码定位：L26
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

private void destroyImmediately() @ L36

• 方法名：destroyImmediately
• 源码定位：L36
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

public boolean isClosed() @ L49

• 方法名：isClosed
• 源码定位：L49
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

public int getFbo(DirectStateAccess dsa, GpuTexture depth) @ L54

• 方法名：getFbo
• 源码定位：L54
• 返回类型：int
• 修饰符：public

参数:

• dsa: DirectStateAccess
• depth: GpuTexture

说明:

TODO

private int createFbo(DirectStateAccess dsa, int depthid) @ L71

• 方法名：createFbo
• 源码定位：L71
• 返回类型：int
• 修饰符：private

参数:

• dsa: DirectStateAccess
• depthid: int

说明:

TODO

public int glId() @ L77

• 方法名：glId
• 源码定位：L77
• 返回类型：int
• 修饰符：public

参数:

• 无

说明:

TODO

public void addViews() @ L81

• 方法名：addViews
• 源码定位：L81
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

public void removeViews() @ L85

• 方法名：removeViews
• 源码定位：L85
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public class GlTexture extends GpuTexture {
    private static final int EMPTY = -1;
    protected final int id;
    private int firstFboId = -1;
    private int firstFboDepthId = -1;
    private @Nullable Int2IntMap fboCache;
    protected boolean closed;
    private int views;
 
    protected GlTexture(@GpuTexture.Usage int usage, String label, TextureFormat format, int width, int height, int depthOrLayers, int mipLevels, int id) {
        super(usage, label, format, width, height, depthOrLayers, mipLevels);
        this.id = id;
    }
 
    @Override
    public void close() {
        if (!this.closed) {
            this.closed = true;
            if (this.views == 0) {
                this.destroyImmediately();
            }
        }
    }
 
    private void destroyImmediately() {
        GlStateManager._deleteTexture(this.id);
        if (this.firstFboId != -1) {
            GlStateManager._glDeleteFramebuffers(this.firstFboId);
        }
 
        if (this.fboCache != null) {
            for (int fbo : this.fboCache.values()) {
                GlStateManager._glDeleteFramebuffers(fbo);
            }
        }
    }
 
    @Override
    public boolean isClosed() {
        return this.closed;
    }
 
    public int getFbo(DirectStateAccess dsa, @Nullable GpuTexture depth) {
        int depthId = depth == null ? 0 : ((GlTexture)depth).id;
        if (this.firstFboDepthId == depthId) {
            return this.firstFboId;
        } else if (this.firstFboId == -1) {
            this.firstFboId = this.createFbo(dsa, depthId);
            this.firstFboDepthId = depthId;
            return this.firstFboId;
        } else {
            if (this.fboCache == null) {
                this.fboCache = new Int2IntArrayMap();
            }
 
            return this.fboCache.computeIfAbsent(depthId, _depthId -> this.createFbo(dsa, _depthId));
        }
    }
 
    private int createFbo(DirectStateAccess dsa, int depthid) {
        int fbo = dsa.createFrameBufferObject();
        dsa.bindFrameBufferTextures(fbo, this.id, depthid, 0, 0);
        return fbo;
    }
 
    public int glId() {
        return this.id;
    }
 
    public void addViews() {
        this.views++;
    }
 
    public void removeViews() {
        this.views--;
        if (this.closed && this.views == 0) {
            this.destroyImmediately();
        }
    }
}

引用的其他类

• DirectStateAccess

  • 引用位置: 参数

• GlStateManager

  • 引用位置: 方法调用
  • 关联成员: GlStateManager._deleteTexture(), GlStateManager._glDeleteFramebuffers()

• GpuTexture

  • 引用位置: 参数/继承

• TextureFormat

  • 引用位置: 参数