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authorGiuseppe D'Angelo <giuseppe.dangelo@kdab.com>2014-02-03 15:24:12 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2014-02-07 18:48:04 +0100
commit8b39935e93c5d7855f87be6aa02f4c849c64feb9 (patch)
tree493bf5560e14ce85cb744ffcc2b71995a77ae59c /src
parentc716cb2600dfe80d6e723ecb3b4c45cbc693becf (diff)
QOpenGLTextureHelper: add a clarifying comment
Change-Id: Ia27fd6616b2259b3fbe71ea8737b270c323a1256 Reviewed-by: James Turner <james.turner@kdab.com> Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Diffstat (limited to 'src')
-rw-r--r--src/gui/opengl/qopengltexturehelper_p.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gui/opengl/qopengltexturehelper_p.h b/src/gui/opengl/qopengltexturehelper_p.h
index 1cb2592a42..cce0c092fd 100644
--- a/src/gui/opengl/qopengltexturehelper_p.h
+++ b/src/gui/opengl/qopengltexturehelper_p.h
@@ -695,7 +695,9 @@ public:
}
private:
- // Typedefs and pointers to member functions used to switch between EXT_direct_state_access and our own emulated DSA
+ // Typedefs and pointers to member functions used to switch between EXT_direct_state_access and our own emulated DSA.
+ // The argument match the corresponding GL function, but there's an extra "GLenum bindingTarget" which gets used with
+ // the DSA emulation -- it contains the right GL_BINDING_TEXTURE_X to use.
typedef void (QOpenGLTextureHelper::*TextureParameteriMemberFunc)(GLuint texture, GLenum target, GLenum bindingTarget, GLenum pname, GLint param);
typedef void (QOpenGLTextureHelper::*TextureParameterivMemberFunc)(GLuint texture, GLenum target, GLenum bindingTarget, GLenum pname, const GLint *params);
typedef void (QOpenGLTextureHelper::*TextureParameterfMemberFunc)(GLuint texture, GLenum target, GLenum bindingTarget, GLenum pname, GLfloat param);