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lottie/builder: revise the layer build logic
Promote the text/image updates to the layer level.
This commit is contained in:
Hermet Park
Hermet Park
parent
309f7b6763
commit
9300de2d06
1 changed files with 118 additions and 126 deletions
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@ -592,85 +592,6 @@ static void _updatePath(LottieGroup* parent, LottieObject** child, float frameNo
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}
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static void _updateText(LottieGroup* parent, LottieObject** child, float frameNo, TVG_UNUSED Inlist<RenderContext>& contexts, TVG_UNUSED RenderContext* ctx, LottieExpressions* exps)
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{
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auto text = static_cast<LottieText*>(*child);
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auto& doc = text->doc(frameNo);
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auto p = doc.text;
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if (!p || !text->font) return;
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auto scale = doc.size * 0.01f;
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float spacing = text->spacing(frameNo) / scale;
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Point cursor = {0.0f, 0.0f};
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auto scene = Scene::gen();
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int line = 0;
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//text string
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while (true) {
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//TODO: remove nested scenes.
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//end of text, new line of the cursor position
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if (*p == 13 || *p == 3 || *p == '\0') {
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//text layout position
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auto ascent = text->font->ascent * scale;
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if (ascent > doc.bbox.size.y) ascent = doc.bbox.size.y;
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Point layout = {doc.bbox.pos.x, doc.bbox.pos.y + ascent - doc.shift};
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//adjust the layout
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if (doc.justify == 1) layout.x += doc.bbox.size.x - (cursor.x * scale); //right aligned
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else if (doc.justify == 2) layout.x += (doc.bbox.size.x * 0.5f) - (cursor.x * 0.5f * scale); //center aligned
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scene->translate(layout.x, layout.y);
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scene->scale(scale);
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parent->scene->push(std::move(scene));
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if (*p == '\0') break;
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++p;
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//new text group, single scene for each line
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scene = Scene::gen();
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cursor.x = 0.0f;
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cursor.y = ++line * (doc.height / scale);
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}
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//find the glyph
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for (auto g = text->font->chars.begin(); g < text->font->chars.end(); ++g) {
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auto glyph = *g;
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//draw matched glyphs
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if (!strncmp(glyph->code, p, glyph->len)) {
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//TODO: caching?
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auto shape = Shape::gen();
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for (auto g = glyph->children.begin(); g < glyph->children.end(); ++g) {
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auto group = static_cast<LottieGroup*>(*g);
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for (auto p = group->children.begin(); p < group->children.end(); ++p) {
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if (static_cast<LottiePath*>(*p)->pathset(frameNo, P(shape)->rs.path.cmds, P(shape)->rs.path.pts, nullptr, 0.0f, exps)) {
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P(shape)->update(RenderUpdateFlag::Path);
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}
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}
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}
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shape->fill(doc.color.rgb[0], doc.color.rgb[1], doc.color.rgb[2]);
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shape->translate(cursor.x, cursor.y);
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if (doc.stroke.render) {
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shape->strokeJoin(StrokeJoin::Round);
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shape->strokeWidth(doc.stroke.width / scale);
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shape->strokeFill(doc.stroke.color.rgb[0], doc.stroke.color.rgb[1], doc.stroke.color.rgb[2]);
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}
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scene->push(std::move(shape));
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p += glyph->len;
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//advance the cursor position horizontally
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cursor.x += glyph->width + spacing + doc.tracking;
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break;
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}
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}
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}
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}
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static void _applyRoundedCorner(Shape* star, Shape* merging, float outerRoundness, float roundness, bool hasRoundness)
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{
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static constexpr auto ROUNDED_POLYSTAR_MAGIC_NUMBER = 0.47829f;
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@ -949,45 +870,6 @@ static void _updatePolystar(LottieGroup* parent, LottieObject** child, float fra
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}
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static void _updateImage(LottieGroup* parent, LottieObject** child, float frameNo, TVG_UNUSED Inlist<RenderContext>& contexts, RenderContext* ctx)
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{
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auto image = static_cast<LottieImage*>(*child);
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auto picture = image->picture;
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if (!picture) {
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picture = Picture::gen().release();
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//force to load a picture on the same thread
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TaskScheduler::async(false);
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if (image->size > 0) {
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if (picture->load((const char*)image->b64Data, image->size, image->mimeType) != Result::Success) {
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delete(picture);
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return;
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}
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} else {
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if (picture->load(image->path) != Result::Success) {
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delete(picture);
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return;
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}
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}
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TaskScheduler::async(true);
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image->picture = picture;
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PP(picture)->ref();
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}
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if (ctx->propagator) {
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if (auto matrix = PP(ctx->propagator)->transform()) {
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picture->transform(*matrix);
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}
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picture->opacity(PP(ctx->propagator)->opacity);
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}
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parent->scene->push(cast<Picture>(picture));
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}
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static void _updateRoundedCorner(TVG_UNUSED LottieGroup* parent, LottieObject** child, float frameNo, TVG_UNUSED Inlist<RenderContext>& contexts, RenderContext* ctx, LottieExpressions* exps)
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{
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auto roundedCorner= static_cast<LottieRoundedCorner*>(*child);
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@ -1088,18 +970,10 @@ static void _updateChildren(LottieGroup* parent, float frameNo, Inlist<RenderCon
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_updatePolystar(parent, child, frameNo, contexts, ctx, exps);
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break;
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}
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case LottieObject::Image: {
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_updateImage(parent, child, frameNo, contexts, ctx);
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break;
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}
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case LottieObject::Trimpath: {
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_updateTrimpath(parent, child, frameNo, contexts, ctx, exps);
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break;
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}
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case LottieObject::Text: {
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_updateText(parent, child, frameNo, contexts, ctx, exps);
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break;
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}
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case LottieObject::Repeater: {
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_updateRepeater(parent, child, frameNo, contexts, ctx, exps);
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break;
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@ -1151,6 +1025,116 @@ static void _updateSolid(LottieLayer* layer)
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}
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static void _updateImage(LottieGroup* layer)
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{
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auto image = static_cast<LottieImage*>(layer->children.first());
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auto picture = image->picture;
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if (!picture) {
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picture = Picture::gen().release();
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//force to load a picture on the same thread
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TaskScheduler::async(false);
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if (image->size > 0) {
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if (picture->load((const char*)image->b64Data, image->size, image->mimeType) != Result::Success) {
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delete(picture);
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return;
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}
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} else {
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if (picture->load(image->path) != Result::Success) {
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delete(picture);
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return;
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}
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}
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TaskScheduler::async(true);
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image->picture = picture;
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PP(picture)->ref();
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}
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layer->scene->push(cast<Picture>(picture));
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}
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static void _updateText(LottieLayer* layer, float frameNo)
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{
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auto text = static_cast<LottieText*>(layer->children.first());
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auto& doc = text->doc(frameNo);
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auto p = doc.text;
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if (!p || !text->font) return;
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auto scale = doc.size * 0.01f;
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float spacing = text->spacing(frameNo) / scale;
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Point cursor = {0.0f, 0.0f};
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auto scene = Scene::gen();
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int line = 0;
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//text string
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while (true) {
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//TODO: remove nested scenes.
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//end of text, new line of the cursor position
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if (*p == 13 || *p == 3 || *p == '\0') {
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//text layout position
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auto ascent = text->font->ascent * scale;
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if (ascent > doc.bbox.size.y) ascent = doc.bbox.size.y;
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Point layout = {doc.bbox.pos.x, doc.bbox.pos.y + ascent - doc.shift};
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//adjust the layout
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if (doc.justify == 1) layout.x += doc.bbox.size.x - (cursor.x * scale); //right aligned
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else if (doc.justify == 2) layout.x += (doc.bbox.size.x * 0.5f) - (cursor.x * 0.5f * scale); //center aligned
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scene->translate(layout.x, layout.y);
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scene->scale(scale);
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layer->scene->push(std::move(scene));
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if (*p == '\0') break;
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++p;
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//new text group, single scene for each line
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scene = Scene::gen();
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cursor.x = 0.0f;
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cursor.y = ++line * (doc.height / scale);
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}
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//find the glyph
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for (auto g = text->font->chars.begin(); g < text->font->chars.end(); ++g) {
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auto glyph = *g;
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//draw matched glyphs
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if (!strncmp(glyph->code, p, glyph->len)) {
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//TODO: caching?
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auto shape = Shape::gen();
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for (auto g = glyph->children.begin(); g < glyph->children.end(); ++g) {
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auto group = static_cast<LottieGroup*>(*g);
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for (auto p = group->children.begin(); p < group->children.end(); ++p) {
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if (static_cast<LottiePath*>(*p)->pathset(frameNo, P(shape)->rs.path.cmds, P(shape)->rs.path.pts, nullptr, 0.0f)) {
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P(shape)->update(RenderUpdateFlag::Path);
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}
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}
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}
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shape->fill(doc.color.rgb[0], doc.color.rgb[1], doc.color.rgb[2]);
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shape->translate(cursor.x, cursor.y);
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if (doc.stroke.render) {
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shape->strokeJoin(StrokeJoin::Round);
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shape->strokeWidth(doc.stroke.width / scale);
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shape->strokeFill(doc.stroke.color.rgb[0], doc.stroke.color.rgb[1], doc.stroke.color.rgb[2]);
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}
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scene->push(std::move(shape));
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p += glyph->len;
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//advance the cursor position horizontally
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cursor.x += glyph->width + spacing + doc.tracking;
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break;
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}
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}
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}
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}
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static void _updateMaskings(LottieLayer* layer, float frameNo, LottieExpressions* exps)
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{
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if (layer->masks.count == 0) return;
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@ -1243,6 +1227,14 @@ static void _updateLayer(LottieLayer* root, LottieLayer* layer, float frameNo, L
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_updateSolid(layer);
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break;
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}
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case LottieLayer::Image: {
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_updateImage(layer);
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break;
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}
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case LottieLayer::Text: {
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_updateText(layer, frameNo);
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break;
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}
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default: {
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if (!layer->children.empty()) {
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Inlist<RenderContext> contexts;
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