From d8b693310ef268c4f58bd2e04b7613460b76bac3 Mon Sep 17 00:00:00 2001 From: Trond Kjernaasen Date: Tue, 11 May 2010 16:34:14 +0200 Subject: Fixed QGLPixmapDropShadowFilter on Nvidia hardware. There seems to be a driver bug that causes glTexSubImage2D() to not align data correctly when uploading a GL_ALPHA texture. Task-number: related to QTBUG-10510 Reviewed-by: Samuel --- src/opengl/qglpixmapfilter.cpp | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/src/opengl/qglpixmapfilter.cpp b/src/opengl/qglpixmapfilter.cpp index d5a11d9..bfa5ef1 100644 --- a/src/opengl/qglpixmapfilter.cpp +++ b/src/opengl/qglpixmapfilter.cpp @@ -591,10 +591,11 @@ bool QGLPixmapDropShadowFilter::processGL(QPainter *painter, const QPointF &pos, qt_blurImage(image, r * qreal(0.5), false, 1); - GLuint texture = generateBlurTexture(image.size(), GL_ALPHA); - - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, image.width(), image.height(), GL_ALPHA, - GL_UNSIGNED_BYTE, image.bits()); + GLuint texture; + glGenTextures(1, &texture); + glBindTexture(GL_TEXTURE_2D, texture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, image.width(), image.height(), + 0, GL_ALPHA, GL_UNSIGNED_BYTE, image.bits()); info = new QGLBlurTextureInfo(image, texture, r); } -- cgit v0.12