Add QSGSpriteNode to the Scenegraph Adaptation Layer

Most core Qt Quick items use one of the nodes provided by the Scenegraph
Adaptation Layer, however the two items that provide support for Sprites
created their own custom nodes.  There was significant redundancy in
this, and it made it only possible to use the OpenGL adaptation.  The
AnimatedSprite and SpriteSequence items have been cleaned up, and now
use the new QSGSpriteNode.

Change-Id: Idc20b9c5da9dc1c94f6368021785382cdf7cec5a
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/quick/scenegraph/shaders/sprite.vert b/src/quick/scenegraph/shaders/sprite.vert
new file mode 100644
index 0000000000..fc826f60b4
--- /dev/null
+++ b/src/quick/scenegraph/shaders/sprite.vert
@@ -0,0 +1,23 @@
+attribute highp vec2 vPos;
+attribute highp vec2 vTex;
+
+uniform highp vec3 animData;// w,h(premultiplied of anim), interpolation progress
+uniform highp vec4 animPos;//x,y, x,y (two frames for interpolation)
+
+uniform highp mat4 qt_Matrix;
+
+varying highp vec4 fTexS;
+varying lowp float progress;
+
+void main()
+{
+    progress = animData.z;
+
+    // Calculate frame location in texture
+    fTexS.xy = animPos.xy + vTex.xy * animData.xy;
+
+    // Next frame is also passed, for interpolation
+    fTexS.zw = animPos.zw + vTex.xy * animData.xy;
+
+    gl_Position = qt_Matrix * vec4(vPos.x, vPos.y, 0, 1);
+}
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