diff options
Diffstat (limited to 'src/opengl/qgl.cpp')
| -rw-r--r-- | src/opengl/qgl.cpp | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 1be2073..a8b136d 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -1978,6 +1978,32 @@ GLuint QGLContext::bindTexture(const QString &fileName) return tx_id; } +static inline QRgb qt_gl_convertToGLFormatHelper(QRgb src_pixel, GLenum texture_format) +{ + if (texture_format == GL_BGRA) { + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + return ((src_pixel << 24) & 0xff000000) + | ((src_pixel >> 24) & 0x000000ff) + | ((src_pixel << 8) & 0x00ff0000) + | ((src_pixel >> 8) & 0x0000ff00); + } else { + return src_pixel; + } + } else { // GL_RGBA + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + return (src_pixel << 8) | ((src_pixel >> 24) & 0xff); + } else { + return ((src_pixel << 16) & 0xff0000) + | ((src_pixel >> 16) & 0xff) + | (src_pixel & 0xff00ff00); + } + } +} + +QRgb qt_gl_convertToGLFormat(QRgb src_pixel, GLenum texture_format) +{ + return qt_gl_convertToGLFormatHelper(src_pixel, texture_format); +} static void convertToGLFormatHelper(QImage &dst, const QImage &img, GLenum texture_format) { @@ -2006,25 +2032,7 @@ static void convertToGLFormatHelper(QImage &dst, const QImage &img, GLenum textu const uint *src = (const quint32 *) (srcPixels - (srcy >> 16) * sbpl); int srcx = basex; for (int x=0; x<target_width; ++x) { - uint src_pixel = src[srcx >> 16]; - if (texture_format == GL_BGRA) { - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { - dest[x] = ((src_pixel << 24) & 0xff000000) - | ((src_pixel >> 24) & 0x000000ff) - | ((src_pixel << 8) & 0x00ff0000) - | ((src_pixel >> 8) & 0x0000ff00); - } else { - dest[x] = src_pixel; - } - } else { // GL_RGBA - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { - dest[x] = (src_pixel << 8) | ((src_pixel >> 24) & 0xff); - } else { - dest[x] = ((src_pixel << 16) & 0xff0000) - | ((src_pixel >> 16) & 0xff) - | (src_pixel & 0xff00ff00); - } - } + dest[x] = qt_gl_convertToGLFormatHelper(src[srcx >> 16], texture_format); srcx += ix; } dest = (quint32 *)(((uchar *) dest) + dbpl); |