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Kapng-Android
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fix support to background dispose op

This commit is contained in:
oupson 2018-10-07 23:09:07 +02:00
parent 2074206d3d
commit b4696c55e8
1 changed files with 17 additions and 10 deletions
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23
apng_library/src/main/java/oupson/apng/ApngAnimator.kt
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@ -61,10 +61,7 @@ class ApngAnimator(val imageView : ImageView) {
// Write buffer to canvas
canvas.drawBitmap(bitmapBuffer, 0f, 0f, null)
// APNG_DISPOSE_OP_BACKGROUND: the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame.
if (lastFrame!!.dispose_op == Utils.Companion.dispose_op.APNG_DISPOSE_OP_BACKGROUND) {
canvas.drawRect(lastFrame!!.x_offsets.toFloat(), lastFrame!!.y_offsets.toFloat(), lastFrame!!.x_offsets + lastFrame!!.width.toFloat(), lastFrame!!.y_offsets + lastFrame!!.height.toFloat(), { val paint = Paint(); paint.xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR); paint }())
}
// Clear current frame rect
// If `blend_op` is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region.
@ -81,6 +78,11 @@ class ApngAnimator(val imageView : ImageView) {
//Do nothings
}
// Add current frame to bitmap buffer
// APNG_DISPOSE_OP_BACKGROUND: the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame.
else if (it.dispose_op == Utils.Companion.dispose_op.APNG_DISPOSE_OP_BACKGROUND){
canvas.drawRect(lastFrame!!.x_offsets.toFloat(), lastFrame!!.y_offsets.toFloat(), lastFrame!!.x_offsets + lastFrame!!.width.toFloat(), lastFrame!!.y_offsets + lastFrame!!.height.toFloat(), { val paint = Paint(); paint.xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR); paint }())
bitmapBuffer = btm
}
else {
bitmapBuffer = btm
}
@ -126,10 +128,7 @@ class ApngAnimator(val imageView : ImageView) {
// Write buffer to canvas
canvas.drawBitmap(bitmapBuffer, 0f, 0f, null)
// APNG_DISPOSE_OP_BACKGROUND: the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame.
if (lastFrame!!.dispose_op == Utils.Companion.dispose_op.APNG_DISPOSE_OP_BACKGROUND) {
canvas.drawRect(lastFrame!!.x_offsets.toFloat(), lastFrame!!.y_offsets.toFloat(), lastFrame!!.x_offsets + lastFrame!!.width.toFloat(),lastFrame!!.y_offsets + lastFrame!!.height.toFloat(), {val paint = Paint(); paint.xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR); paint}())
}
// Clear current frame rect
// If `blend_op` is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region.
@ -146,6 +145,14 @@ class ApngAnimator(val imageView : ImageView) {
//Do nothings
}
// Add current frame to bitmap buffer
// APNG_DISPOSE_OP_BACKGROUND: the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame.
else if (it.dispose_op == Utils.Companion.dispose_op.APNG_DISPOSE_OP_BACKGROUND){
val res = Bitmap.createBitmap(Frames[0].maxWidth, Frames[0].maxHeight, Bitmap.Config.ARGB_8888)
val can = Canvas(res)
can.drawBitmap(btm, 0f, 0f, null)
can.drawRect(lastFrame!!.x_offsets.toFloat(), lastFrame!!.y_offsets.toFloat(), lastFrame!!.x_offsets + lastFrame!!.width.toFloat(), lastFrame!!.y_offsets + lastFrame!!.height.toFloat(), { val paint = Paint(); paint.xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR); paint }())
bitmapBuffer = res
}
else {
bitmapBuffer = btm
}