qglpixelbuffer_mac.mm File Reference

#include "qglpixelbuffer.h"
#include "qglpixelbuffer_p.h"
#include <AGL/agl.h>
#include <qimage.h>
#include <private/qgl_p.h>
#include <qdebug.h>

Go to the source code of this file.

Macros
#define	GL_TEXTURE_RECTANGLE_EXT   0x84F5

Functions
static int	nearest_gl_texture_size (int v)

Macro Definition Documentation

GL_TEXTURE_RECTANGLE_EXT

#define GL_TEXTURE_RECTANGLE_EXT   0x84F5

Definition at line 56 of file qglpixelbuffer_mac.mm.

Referenced by nearest_gl_texture_size().

Function Documentation

nearest_gl_texture_size()

static int nearest_gl_texture_size ( int  v )

static

Definition at line 59 of file qglpixelbuffer_mac.mm.

{
    int n = 0, last = 0;
    for (int s = 0; s < 32; ++s) {
        if (((v>>s) & 1) == 1) {
            ++n;
            last = s;
        }
    }
    if (n > 1)
        return 1 << (last+1);
    return 1 << last;
}