Introduce a GLTexture::toImage helper class

2020-07-22 19:10:09 +02:00 · 2020-07-22 19:10:09 +02:00 · ff65bec92c
commit ff65bec92c
parent 1ef90d9c90
2 changed files with 9 additions and 0 deletions
--- a/libkwineffects/kwingltexture.cpp
+++ b/libkwineffects/kwingltexture.cpp
@ -683,4 +683,11 @@ bool GLTexture::supportsFormatRG()
    return GLTexturePrivate::s_supportsTextureFormatRG;
 }

+QImage GLTexture::toImage() const
+{
+    QImage ret(size(), QImage::Format_RGBA8888_Premultiplied);
+    glGetTextureImage(texture(), 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, ret.sizeInBytes(), ret.bits());
+    return ret;
+}
+
 } // namespace KWin
--- a/libkwineffects/kwingltexture.h
+++ b/libkwineffects/kwingltexture.h
@ -113,6 +113,8 @@ public:
    GLenum filter() const;
    GLenum internalFormat() const;

+    QImage toImage() const;
+
    /** @short
     * Make the texture fully transparent
     */