feat(代码优化): 修复小问题和升级jbig2

ofdgo_renderer_layer.go

@@ -95,12 +95,20 @@ func (r *Renderer) renderCompositeGraphicUnit(ctx *canvas.Context, cgu Composite
 		return
 	}
 	ctx.Push()
-	currentCTM := NewMatrix(cgu.CTM)
-	if parentCTM != nil {
-		currentCTM = parentCTM.Multiply(currentCTM)
-	}
 	box, _ := ParseBox(cgu.Boundary)
-	clipPath := intersectClipPath(parentClip, r.buildClipPath(cgu.Clips, pageH, box.X, box.Y, currentCTM))
+	boundaryCTM := TranslationMatrix(box.X, box.Y)
+	if parentCTM != nil {
+		boundaryCTM = parentCTM.Multiply(boundaryCTM)
+	}
+	currentCTM := boundaryCTM.Multiply(NewMatrix(cgu.CTM))
+	clips, clipCTM := cgu.Clips, currentCTM
+	if clips != nil && clips.TransFlag != nil && !*clips.TransFlag {
+		// 不参与对象CTM的裁剪仍位于对象边界及父级坐标系中
+		clipCopy := *clips
+		clipCopy.TransFlag = nil
+		clips, clipCTM = &clipCopy, boundaryCTM
+	}
+	clipPath := intersectClipPath(parentClip, r.buildClipPath(clips, pageH, 0, 0, clipCTM))
 	if cgu.ResourceID != "" {
 		if ref, ok := r.CompositeGraphicUnits[cgu.ResourceID]; ok {
 			refCopy := *ref