Don't use bilinear filtering on unscaled bitmaps

    const float width = texture->width;

    const float height = texture->height;

    const float u1 = (srcLeft + 0.5f) / width;

    const float v1 = (srcTop + 0.5f)  / height;

    const float u2 = (srcRight - 0.5f) / width;

    const float v2 = (srcBottom - 0.5f) / height;

    const float u1 = fmax(0.0f, srcLeft / width);

    const float v1 = fmax(0.0f, srcTop / height);

    const float u2 = fmin(1.0f, srcRight / width);

    const float v2 = fmin(1.0f, srcBottom / height);

    mCaches.unbindMeshBuffer();

    resetDrawTextureTexCoords(u1, v1, u2, v2);