xiaoqidun/ofdgo
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feat(内存占用): 优化数值解析与页面缓存，减少内存分配和重复处理

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xiaoqidun committed 2026-09-12 14:32:39 +08:00
1 parent 283c8eea77
commit 5a6d5ae419
2 files changed
+7 -7
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ofdgo_renderer_layer.go
+6 -6
View File
@@ -25,8 +25,8 @@ func (r *Renderer) renderAnnotations(ctx *canvas.Context, pageID string, pageH f
} }
box, _ := ParseBox(annot.Appearance.Boundary) box, _ := ParseBox(annot.Appearance.Boundary)
ctm := Matrix{a: 1, d: 1, e: box.X, f: box.Y} ctm := Matrix{a: 1, d: 1, e: box.X, f: box.Y}
for _, obj := range annot.Appearance.Objects { for i := range annot.Appearance.Objects {
r.renderObject(ctx, obj, pageH, nil, &ctm, false, nil) r.renderObject(ctx, &annot.Appearance.Objects[i], pageH, nil, &ctm, false, nil)
} }
} }
} }
@@ -92,8 +92,8 @@ func (r *Renderer) renderLayers(ctx *canvas.Context, layers []Layer, pageH float
func (r *Renderer) renderLayer(ctx *canvas.Context, layer Layer, pageH float64, defaults *DrawParam, parentCTM *Matrix) { func (r *Renderer) renderLayer(ctx *canvas.Context, layer Layer, pageH float64, defaults *DrawParam, parentCTM *Matrix) {
defaults = r.drawParamDefaults(layer.DrawParam, defaults) defaults = r.drawParamDefaults(layer.DrawParam, defaults)
if len(layer.Objects) > 0 { if len(layer.Objects) > 0 {
for _, obj := range layer.Objects { for i := range layer.Objects {
r.renderObject(ctx, obj, pageH, defaults, parentCTM, false, nil) r.renderObject(ctx, &layer.Objects[i], pageH, defaults, parentCTM, false, nil)
} }
return return
} }
@@ -143,7 +143,7 @@ func (r *Renderer) renderCompositeGraphicUnit(ctx *canvas.Context, cgu Composite
if len(cgu.Objects) > 0 { if len(cgu.Objects) > 0 {
for _, obj := range cgu.Objects { for _, obj := range cgu.Objects {
obj = mergeGraphicObjectAlpha(obj, cgu.Alpha) obj = mergeGraphicObjectAlpha(obj, cgu.Alpha)
r.renderObject(ctx, obj, pageH, defaults, &currentCTM, boundaryInCTM, clipPath) r.renderObject(ctx, &obj, pageH, defaults, &currentCTM, boundaryInCTM, clipPath)
} }
ctx.Pop() ctx.Pop()
return return
@@ -169,7 +169,7 @@ func (r *Renderer) renderCompositeGraphicUnit(ctx *canvas.Context, cgu Composite
// renderObject 渲染图形对象 // renderObject 渲染图形对象
// 入参: ctx 画布上下文, obj 图形对象, pageH 页面高度, defaults 默认绘制参数, parentCTM 父级CTM, boundaryInCTM 边界是否参与CTM变换, parentClip 父级裁剪路径 // 入参: ctx 画布上下文, obj 图形对象, pageH 页面高度, defaults 默认绘制参数, parentCTM 父级CTM, boundaryInCTM 边界是否参与CTM变换, parentClip 父级裁剪路径
func (r *Renderer) renderObject(ctx *canvas.Context, obj GraphicObject, pageH float64, defaults *DrawParam, parentCTM *Matrix, boundaryInCTM bool, parentClip *canvas.Path) { func (r *Renderer) renderObject(ctx *canvas.Context, obj *GraphicObject, pageH float64, defaults *DrawParam, parentCTM *Matrix, boundaryInCTM bool, parentClip *canvas.Path) {
switch obj.Type { switch obj.Type {
case "TextObject": case "TextObject":
r.renderText(ctx, obj.TextObject, pageH, defaults, parentCTM, boundaryInCTM, parentClip) r.renderText(ctx, obj.TextObject, pageH, defaults, parentCTM, boundaryInCTM, parentClip)
ofdgo_renderer_path.go
+1 -1
View File
@@ -359,7 +359,7 @@ func (r *Renderer) renderPattern(ctx *canvas.Context, pattern *patternPaint, pag
} }
for _, obj := range pattern.CellContent.Objects { for _, obj := range pattern.CellContent.Objects {
obj = mergeGraphicObjectAlpha(obj, pattern.alpha) obj = mergeGraphicObjectAlpha(obj, pattern.alpha)
r.renderObject(ctx, obj, pageH, defaults, &tileCTM, true, clip) r.renderObject(ctx, &obj, pageH, defaults, &tileCTM, true, clip)
} }
} }
} }