diff options
Diffstat (limited to 'src/gui/opengl/qopengltexturecache.cpp')
| -rw-r--r-- | src/gui/opengl/qopengltexturecache.cpp | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/src/gui/opengl/qopengltexturecache.cpp b/src/gui/opengl/qopengltexturecache.cpp index f4aa29ac0f..d8b44016b9 100644 --- a/src/gui/opengl/qopengltexturecache.cpp +++ b/src/gui/opengl/qopengltexturecache.cpp @@ -40,6 +40,7 @@ ****************************************************************************/ #include "qopengltexturecache_p.h" +#include <qmath.h> #include <qopenglfunctions.h> #include <private/qopenglcontext_p.h> #include <private/qimagepixmapcleanuphooks_p.h> @@ -129,20 +130,6 @@ GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, const QPixmap & return id; } -// returns the highest number closest to v, which is a power of 2 -// NB! assumes 32 bit ints -static int qt_next_power_of_two(int v) -{ - v--; - v |= v >> 1; - v |= v >> 2; - v |= v >> 4; - v |= v >> 8; - v |= v >> 16; - ++v; - return v; -} - GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, const QImage &image) { if (image.isNull()) @@ -164,8 +151,8 @@ GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, const QImage &i // Scale the pixmap if needed. GL textures needs to have the // dimensions 2^n+2(border) x 2^m+2(border), unless we're using GL // 2.0 or use the GL_TEXTURE_RECTANGLE texture target - int tx_w = qt_next_power_of_two(image.width()); - int tx_h = qt_next_power_of_two(image.height()); + int tx_w = qNextPowerOfTwo(image.width() - 1); + int tx_h = qNextPowerOfTwo(image.height() - 1); if (tx_w != image.width() || tx_h != image.height()) { img = img.scaled(tx_w, tx_h); } |