diff options
| author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2019-03-01 14:39:25 +0100 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2019-03-02 08:25:19 +0000 |
| commit | 55cc93e9d68a8851163f16dfa8a25a817c2e129e (patch) | |
| tree | 887301884b229df87174946b1c1d0e9776d6ce68 /src/gui/opengl | |
| parent | a74b2b5f152ae81da6c0906afc63b8647c3a048a (diff) | |
Prefer BGRA uploading to swizzling
The older BGRA extension is more likely to have stable driver support.
Fixes: QTBUG-74150
Change-Id: If321b3024fbdeb9e199880744b9ee915b3b2bf6c
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Diffstat (limited to 'src/gui/opengl')
| -rw-r--r-- | src/gui/opengl/qopengltextureuploader.cpp | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/src/gui/opengl/qopengltextureuploader.cpp b/src/gui/opengl/qopengltextureuploader.cpp index 42e309b733..03b5cb6eb5 100644 --- a/src/gui/opengl/qopengltextureuploader.cpp +++ b/src/gui/opengl/qopengltextureuploader.cpp @@ -114,6 +114,18 @@ qsizetype QOpenGLTextureUploader::textureImage(GLenum target, const QImage &imag externalFormat = GL_BGRA; internalFormat = GL_RGBA; pixelType = GL_UNSIGNED_INT_8_8_8_8_REV; +#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN + // Without GL_UNSIGNED_INT_8_8_8_8_REV, BGRA only matches ARGB on little endian: + } else if (funcs->hasOpenGLExtension(QOpenGLExtensions::BGRATextureFormat) && !sRgbBinding) { + // The GL_EXT_texture_format_BGRA8888 extension requires the internal format to match the external. + externalFormat = internalFormat = GL_BGRA; + pixelType = GL_UNSIGNED_BYTE; + } else if (context->isOpenGLES() && context->hasExtension(QByteArrayLiteral("GL_APPLE_texture_format_BGRA8888"))) { + // Is only allowed as an external format like OpenGL. + externalFormat = GL_BGRA; + internalFormat = GL_RGBA; + pixelType = GL_UNSIGNED_BYTE; +#endif } else if (funcs->hasOpenGLExtension(QOpenGLExtensions::TextureSwizzle)) { #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN GLint swizzle[4] = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA }; @@ -125,25 +137,8 @@ qsizetype QOpenGLTextureUploader::textureImage(GLenum target, const QImage &imag externalFormat = internalFormat = GL_RGBA; pixelType = GL_UNSIGNED_BYTE; } else { -#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN - // Without GL_UNSIGNED_INT_8_8_8_8_REV, BGRA only matches ARGB on little endian. - if (funcs->hasOpenGLExtension(QOpenGLExtensions::BGRATextureFormat) && !sRgbBinding) { - // The GL_EXT_texture_format_BGRA8888 extension requires the internal format to match the external. - externalFormat = internalFormat = GL_BGRA; - pixelType = GL_UNSIGNED_BYTE; - } else if (context->isOpenGLES() && context->hasExtension(QByteArrayLiteral("GL_APPLE_texture_format_BGRA8888"))) { - // Is only allowed as an external format like OpenGL. - externalFormat = GL_BGRA; - internalFormat = GL_RGBA; - pixelType = GL_UNSIGNED_BYTE; - } else { - // No support for direct ARGB32 upload. - break; - } -#else - // Big endian requires GL_UNSIGNED_INT_8_8_8_8_REV for ARGB to match BGRA + // No support for direct ARGB32 upload. break; -#endif } targetFormat = image.format(); break; |