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[flutter] Fix up vertex & texture color modulation, go back to passing native views directly to avoid copy.

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This commit is contained in:
Mario Zechner 2022-08-23 20:34:56 +02:00
parent 4a661aedfb
commit 689f748f5d
2 changed files with 12 additions and 15 deletions
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5
spine-flutter/example/lib/main.dart
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@ -65,12 +65,9 @@ class _SpinePainter extends CustomPainter {
canvas.save();
canvas.translate(size.width / 2, size.height);
for (final cmd in commands) {
canvas.drawVertices(cmd.vertices, BlendMode.srcOut, drawable.atlas.atlasPagePaints[cmd.atlasPageIndex]);
canvas.drawVertices(cmd.vertices, BlendMode.modulate, drawable.atlas.atlasPagePaints[cmd.atlasPageIndex]);
}
canvas.restore();
canvas.drawLine(Offset(0, 0), Offset(size.width, size.height), Paint()
..color = Colors.blue
..strokeWidth = 4);
}
@override

22
spine-flutter/lib/spine_flutter.dart
View File

@ -14,10 +14,10 @@ int minorVersion() => _bindings.spine_minor_version();
class SpineAtlas {
Pointer<spine_atlas> _atlas;
List<Image> _atlasPages;
List<Image> atlasPages;
List<Paint> atlasPagePaints;
SpineAtlas(this._atlas, this._atlasPages, this.atlasPagePaints);
SpineAtlas(this._atlas, this.atlasPages, this.atlasPagePaints);
static Future<SpineAtlas> fromAsset(AssetBundle assetBundle, String atlasFileName) async {
final atlasData = await assetBundle.loadString(atlasFileName);
@ -42,7 +42,10 @@ class SpineAtlas {
final FrameInfo frameInfo = await codec.getNextFrame();
final Image image = frameInfo.image;
atlasPages.add(image);
atlasPagePaints.add(Paint()..shader = ImageShader(image, TileMode.clamp, TileMode.clamp, Matrix4.identity().storage));
atlasPagePaints.add(Paint()
..shader = ImageShader(image, TileMode.clamp, TileMode.clamp, Matrix4.identity().storage, filterQuality: FilterQuality.high)
..isAntiAlias = true
);
}
return SpineAtlas(atlas, atlasPages, atlasPagePaints);
@ -98,7 +101,7 @@ class SpineSkeletonDrawable {
Pointer<spine_render_command> nativeCmd = _bindings.spine_skeleton_drawable_render(_drawable);
List<SpineRenderCommand> commands = [];
while(nativeCmd.address != nullptr.address) {
final atlasPage = atlas._atlasPages[nativeCmd.ref.atlasPage];
final atlasPage = atlas.atlasPages[nativeCmd.ref.atlasPage];
commands.add(SpineRenderCommand(nativeCmd, atlasPage.width.toDouble(), atlasPage.height.toDouble()));
nativeCmd = nativeCmd.ref.next;
}
@ -114,10 +117,7 @@ class SpineRenderCommand {
atlasPageIndex = nativeCmd.ref.atlasPage;
int numVertices = nativeCmd.ref.numVertices;
int numIndices = nativeCmd.ref.numIndices;
final positions = Float32List.fromList(nativeCmd.ref.positions.asTypedList(numVertices * 2));
final uvs = Float32List.fromList(nativeCmd.ref.uvs.asTypedList(numVertices * 2));
final colors = Int32List.fromList(nativeCmd.ref.colors.asTypedList(numVertices));
final indices = Uint16List.fromList(nativeCmd.ref.indices.asTypedList(numIndices));
final uvs = nativeCmd.ref.uvs.asTypedList(numVertices * 2);
for (int i = 0; i < numVertices * 2; i += 2) {
uvs[i] *= pageWidth;
uvs[i+1] *= pageHeight;
@ -127,10 +127,10 @@ class SpineRenderCommand {
// render call. See the implementation of Vertices.raw() here:
// https://github.com/flutter/engine/blob/5c60785b802ad2c8b8899608d949342d5c624952/lib/ui/painting/vertices.cc#L21
vertices = Vertices.raw(VertexMode.triangles,
positions,
nativeCmd.ref.positions.asTypedList(numVertices * 2),
textureCoordinates: uvs,
colors: colors,
indices: indices
colors: nativeCmd.ref.colors.asTypedList(numVertices),
indices: nativeCmd.ref.indices.asTypedList(numIndices)
);
}
}